(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = global || self, global.csstree = factory());
}(this, function () { 'use strict';
//
// list
// ┌──────┐
// ┌──────────────┼─head │
// │ │ tail─┼──────────────┐
// │ └──────┘ │
// ▼ ▼
// item item item item
// ┌──────┐ ┌──────┐ ┌──────┐ ┌──────┐
// null ◀──┼─prev │◀───┼─prev │◀───┼─prev │◀───┼─prev │
// │ next─┼───▶│ next─┼───▶│ next─┼───▶│ next─┼──▶ null
// ├──────┤ ├──────┤ ├──────┤ ├──────┤
// │ data │ │ data │ │ data │ │ data │
// └──────┘ └──────┘ └──────┘ └──────┘
//
function createItem(data) {
return {
prev: null,
next: null,
data: data
};
}
function allocateCursor(node, prev, next) {
var cursor;
if (cursors !== null) {
cursor = cursors;
cursors = cursors.cursor;
cursor.prev = prev;
cursor.next = next;
cursor.cursor = node.cursor;
} else {
cursor = {
prev: prev,
next: next,
cursor: node.cursor
};
}
node.cursor = cursor;
return cursor;
}
function releaseCursor(node) {
var cursor = node.cursor;
node.cursor = cursor.cursor;
cursor.prev = null;
cursor.next = null;
cursor.cursor = cursors;
cursors = cursor;
}
var cursors = null;
var List = function() {
this.cursor = null;
this.head = null;
this.tail = null;
};
List.createItem = createItem;
List.prototype.createItem = createItem;
List.prototype.updateCursors = function(prevOld, prevNew, nextOld, nextNew) {
var cursor = this.cursor;
while (cursor !== null) {
if (cursor.prev === prevOld) {
cursor.prev = prevNew;
}
if (cursor.next === nextOld) {
cursor.next = nextNew;
}
cursor = cursor.cursor;
}
};
List.prototype.getSize = function() {
var size = 0;
var cursor = this.head;
while (cursor) {
size++;
cursor = cursor.next;
}
return size;
};
List.prototype.fromArray = function(array) {
var cursor = null;
this.head = null;
for (var i = 0; i < array.length; i++) {
var item = createItem(array[i]);
if (cursor !== null) {
cursor.next = item;
} else {
this.head = item;
}
item.prev = cursor;
cursor = item;
}
this.tail = cursor;
return this;
};
List.prototype.toArray = function() {
var cursor = this.head;
var result = [];
while (cursor) {
result.push(cursor.data);
cursor = cursor.next;
}
return result;
};
List.prototype.toJSON = List.prototype.toArray;
List.prototype.isEmpty = function() {
return this.head === null;
};
List.prototype.first = function() {
return this.head && this.head.data;
};
List.prototype.last = function() {
return this.tail && this.tail.data;
};
List.prototype.each = function(fn, context) {
var item;
if (context === undefined) {
context = this;
}
// push cursor
var cursor = allocateCursor(this, null, this.head);
while (cursor.next !== null) {
item = cursor.next;
cursor.next = item.next;
fn.call(context, item.data, item, this);
}
// pop cursor
releaseCursor(this);
};
List.prototype.forEach = List.prototype.each;
List.prototype.eachRight = function(fn, context) {
var item;
if (context === undefined) {
context = this;
}
// push cursor
var cursor = allocateCursor(this, this.tail, null);
while (cursor.prev !== null) {
item = cursor.prev;
cursor.prev = item.prev;
fn.call(context, item.data, item, this);
}
// pop cursor
releaseCursor(this);
};
List.prototype.forEachRight = List.prototype.eachRight;
List.prototype.nextUntil = function(start, fn, context) {
if (start === null) {
return;
}
var item;
if (context === undefined) {
context = this;
}
// push cursor
var cursor = allocateCursor(this, null, start);
while (cursor.next !== null) {
item = cursor.next;
cursor.next = item.next;
if (fn.call(context, item.data, item, this)) {
break;
}
}
// pop cursor
releaseCursor(this);
};
List.prototype.prevUntil = function(start, fn, context) {
if (start === null) {
return;
}
var item;
if (context === undefined) {
context = this;
}
// push cursor
var cursor = allocateCursor(this, start, null);
while (cursor.prev !== null) {
item = cursor.prev;
cursor.prev = item.prev;
if (fn.call(context, item.data, item, this)) {
break;
}
}
// pop cursor
releaseCursor(this);
};
List.prototype.some = function(fn, context) {
var cursor = this.head;
if (context === undefined) {
context = this;
}
while (cursor !== null) {
if (fn.call(context, cursor.data, cursor, this)) {
return true;
}
cursor = cursor.next;
}
return false;
};
List.prototype.map = function(fn, context) {
var result = new List();
var cursor = this.head;
if (context === undefined) {
context = this;
}
while (cursor !== null) {
result.appendData(fn.call(context, cursor.data, cursor, this));
cursor = cursor.next;
}
return result;
};
List.prototype.filter = function(fn, context) {
var result = new List();
var cursor = this.head;
if (context === undefined) {
context = this;
}
while (cursor !== null) {
if (fn.call(context, cursor.data, cursor, this)) {
result.appendData(cursor.data);
}
cursor = cursor.next;
}
return result;
};
List.prototype.clear = function() {
this.head = null;
this.tail = null;
};
List.prototype.copy = function() {
var result = new List();
var cursor = this.head;
while (cursor !== null) {
result.insert(createItem(cursor.data));
cursor = cursor.next;
}
return result;
};
List.prototype.prepend = function(item) {
// head
// ^
// item
this.updateCursors(null, item, this.head, item);
// insert to the beginning of the list
if (this.head !== null) {
// new item <- first item
this.head.prev = item;
// new item -> first item
item.next = this.head;
} else {
// if list has no head, then it also has no tail
// in this case tail points to the new item
this.tail = item;
}
// head always points to new item
this.head = item;
return this;
};
List.prototype.prependData = function(data) {
return this.prepend(createItem(data));
};
List.prototype.append = function(item) {
return this.insert(item);
};
List.prototype.appendData = function(data) {
return this.insert(createItem(data));
};
List.prototype.insert = function(item, before) {
if (before !== undefined && before !== null) {
// prev before
// ^
// item
this.updateCursors(before.prev, item, before, item);
if (before.prev === null) {
// insert to the beginning of list
if (this.head !== before) {
throw new Error('before doesn\'t belong to list');
}
// since head points to before therefore list doesn't empty
// no need to check tail
this.head = item;
before.prev = item;
item.next = before;
this.updateCursors(null, item);
} else {
// insert between two items
before.prev.next = item;
item.prev = before.prev;
before.prev = item;
item.next = before;
}
} else {
// tail
// ^
// item
this.updateCursors(this.tail, item, null, item);
// insert to the ending of the list
if (this.tail !== null) {
// last item -> new item
this.tail.next = item;
// last item <- new item
item.prev = this.tail;
} else {
// if list has no tail, then it also has no head
// in this case head points to new item
this.head = item;
}
// tail always points to new item
this.tail = item;
}
return this;
};
List.prototype.insertData = function(data, before) {
return this.insert(createItem(data), before);
};
List.prototype.remove = function(item) {
// item
// ^
// prev next
this.updateCursors(item, item.prev, item, item.next);
if (item.prev !== null) {
item.prev.next = item.next;
} else {
if (this.head !== item) {
throw new Error('item doesn\'t belong to list');
}
this.head = item.next;
}
if (item.next !== null) {
item.next.prev = item.prev;
} else {
if (this.tail !== item) {
throw new Error('item doesn\'t belong to list');
}
this.tail = item.prev;
}
item.prev = null;
item.next = null;
return item;
};
List.prototype.push = function(data) {
this.insert(createItem(data));
};
List.prototype.pop = function() {
if (this.tail !== null) {
return this.remove(this.tail);
}
};
List.prototype.unshift = function(data) {
this.prepend(createItem(data));
};
List.prototype.shift = function() {
if (this.head !== null) {
return this.remove(this.head);
}
};
List.prototype.prependList = function(list) {
return this.insertList(list, this.head);
};
List.prototype.appendList = function(list) {
return this.insertList(list);
};
List.prototype.insertList = function(list, before) {
// ignore empty lists
if (list.head === null) {
return this;
}
if (before !== undefined && before !== null) {
this.updateCursors(before.prev, list.tail, before, list.head);
// insert in the middle of dist list
if (before.prev !== null) {
// before.prev <-> list.head
before.prev.next = list.head;
list.head.prev = before.prev;
} else {
this.head = list.head;
}
before.prev = list.tail;
list.tail.next = before;
} else {
this.updateCursors(this.tail, list.tail, null, list.head);
// insert to end of the list
if (this.tail !== null) {
// if destination list has a tail, then it also has a head,
// but head doesn't change
// dest tail -> source head
this.tail.next = list.head;
// dest tail <- source head
list.head.prev = this.tail;
} else {
// if list has no a tail, then it also has no a head
// in this case points head to new item
this.head = list.head;
}
// tail always start point to new item
this.tail = list.tail;
}
list.head = null;
list.tail = null;
return this;
};
List.prototype.replace = function(oldItem, newItemOrList) {
if ('head' in newItemOrList) {
this.insertList(newItemOrList, oldItem);
} else {
this.insert(newItemOrList, oldItem);
}
this.remove(oldItem);
};
var List_1 = List;
var createCustomError = function createCustomError(name, message) {
// use Object.create(), because some VMs prevent setting line/column otherwise
// (iOS Safari 10 even throws an exception)
var error = Object.create(SyntaxError.prototype);
var errorStack = new Error();
error.name = name;
error.message = message;
Object.defineProperty(error, 'stack', {
get: function() {
return (errorStack.stack || '').replace(/^(.+\n){1,3}/, name + ': ' + message + '\n');
}
});
return error;
};
var MAX_LINE_LENGTH = 100;
var OFFSET_CORRECTION = 60;
var TAB_REPLACEMENT = ' ';
function sourceFragment(error, extraLines) {
function processLines(start, end) {
return lines.slice(start, end).map(function(line, idx) {
var num = String(start + idx + 1);
while (num.length < maxNumLength) {
num = ' ' + num;
}
return num + ' |' + line;
}).join('\n');
}
var lines = error.source.split(/\r\n?|\n|\f/);
var line = error.line;
var column = error.column;
var startLine = Math.max(1, line - extraLines) - 1;
var endLine = Math.min(line + extraLines, lines.length + 1);
var maxNumLength = Math.max(4, String(endLine).length) + 1;
var cutLeft = 0;
// column correction according to replaced tab before column
column += (TAB_REPLACEMENT.length - 1) * (lines[line - 1].substr(0, column - 1).match(/\t/g) || []).length;
if (column > MAX_LINE_LENGTH) {
cutLeft = column - OFFSET_CORRECTION + 3;
column = OFFSET_CORRECTION - 2;
}
for (var i = startLine; i <= endLine; i++) {
if (i >= 0 && i < lines.length) {
lines[i] = lines[i].replace(/\t/g, TAB_REPLACEMENT);
lines[i] =
(cutLeft > 0 && lines[i].length > cutLeft ? '\u2026' : '') +
lines[i].substr(cutLeft, MAX_LINE_LENGTH - 2) +
(lines[i].length > cutLeft + MAX_LINE_LENGTH - 1 ? '\u2026' : '');
}
}
return [
processLines(startLine, line),
new Array(column + maxNumLength + 2).join('-') + '^',
processLines(line, endLine)
].filter(Boolean).join('\n');
}
var SyntaxError$1 = function(message, source, offset, line, column) {
var error = createCustomError('SyntaxError', message);
error.source = source;
error.offset = offset;
error.line = line;
error.column = column;
error.sourceFragment = function(extraLines) {
return sourceFragment(error, isNaN(extraLines) ? 0 : extraLines);
};
Object.defineProperty(error, 'formattedMessage', {
get: function() {
return (
'Parse error: ' + error.message + '\n' +
sourceFragment(error, 2)
);
}
});
// for backward capability
error.parseError = {
offset: offset,
line: line,
column: column
};
return error;
};
var _SyntaxError = SyntaxError$1;
// CSS Syntax Module Level 3
// https://www.w3.org/TR/css-syntax-3/
var TYPE = {
EOF: 0, // <EOF-token>
Ident: 1, // <ident-token>
Function: 2, // <function-token>
AtKeyword: 3, // <at-keyword-token>
Hash: 4, // <hash-token>
String: 5, // <string-token>
BadString: 6, // <bad-string-token>
Url: 7, // <url-token>
BadUrl: 8, // <bad-url-token>
Delim: 9, // <delim-token>
Number: 10, // <number-token>
Percentage: 11, // <percentage-token>
Dimension: 12, // <dimension-token>
WhiteSpace: 13, // <whitespace-token>
CDO: 14, // <CDO-token>
CDC: 15, // <CDC-token>
Colon: 16, // <colon-token> :
Semicolon: 17, // <semicolon-token> ;
Comma: 18, // <comma-token> ,
LeftSquareBracket: 19, // <[-token>
RightSquareBracket: 20, // <]-token>
LeftParenthesis: 21, // <(-token>
RightParenthesis: 22, // <)-token>
LeftCurlyBracket: 23, // <{-token>
RightCurlyBracket: 24, // <}-token>
Comment: 25
};
var NAME = Object.keys(TYPE).reduce(function(result, key) {
result[TYPE[key]] = key;
return result;
}, {});
var _const = {
TYPE: TYPE,
NAME: NAME
};
var EOF = 0;
// https://drafts.csswg.org/css-syntax-3/
// § 4.2. Definitions
// digit
// A code point between U+0030 DIGIT ZERO (0) and U+0039 DIGIT NINE (9).
function isDigit(code) {
return code >= 0x0030 && code <= 0x0039;
}
// hex digit
// A digit, or a code point between U+0041 LATIN CAPITAL LETTER A (A) and U+0046 LATIN CAPITAL LETTER F (F),
// or a code point between U+0061 LATIN SMALL LETTER A (a) and U+0066 LATIN SMALL LETTER F (f).
function isHexDigit(code) {
return (
isDigit(code) || // 0 .. 9
(code >= 0x0041 && code <= 0x0046) || // A .. F
(code >= 0x0061 && code <= 0x0066) // a .. f
);
}
// uppercase letter
// A code point between U+0041 LATIN CAPITAL LETTER A (A) and U+005A LATIN CAPITAL LETTER Z (Z).
function isUppercaseLetter(code) {
return code >= 0x0041 && code <= 0x005A;
}
// lowercase letter
// A code point between U+0061 LATIN SMALL LETTER A (a) and U+007A LATIN SMALL LETTER Z (z).
function isLowercaseLetter(code) {
return code >= 0x0061 && code <= 0x007A;
}
// letter
// An uppercase letter or a lowercase letter.
function isLetter(code) {
return isUppercaseLetter(code) || isLowercaseLetter(code);
}
// non-ASCII code point
// A code point with a value equal to or greater than U+0080 <control>.
function isNonAscii(code) {
return code >= 0x0080;
}
// name-start code point
// A letter, a non-ASCII code point, or U+005F LOW LINE (_).
function isNameStart(code) {
return isLetter(code) || isNonAscii(code) || code === 0x005F;
}
// name code point
// A name-start code point, a digit, or U+002D HYPHEN-MINUS (-).
function isName(code) {
return isNameStart(code) || isDigit(code) || code === 0x002D;
}
// non-printable code point
// A code point between U+0000 NULL and U+0008 BACKSPACE, or U+000B LINE TABULATION,
// or a code point between U+000E SHIFT OUT and U+001F INFORMATION SEPARATOR ONE, or U+007F DELETE.
function isNonPrintable(code) {
return (
(code >= 0x0000 && code <= 0x0008) ||
(code === 0x000B) ||
(code >= 0x000E && code <= 0x001F) ||
(code === 0x007F)
);
}
// newline
// U+000A LINE FEED. Note that U+000D CARRIAGE RETURN and U+000C FORM FEED are not included in this definition,
// as they are converted to U+000A LINE FEED during preprocessing.
// TODO: we doesn't do a preprocessing, so check a code point for U+000D CARRIAGE RETURN and U+000C FORM FEED
function isNewline(code) {
return code === 0x000A || code === 0x000D || code === 0x000C;
}
// whitespace
// A newline, U+0009 CHARACTER TABULATION, or U+0020 SPACE.
function isWhiteSpace(code) {
return isNewline(code) || code === 0x0020 || code === 0x0009;
}
// § 4.3.8. Check if two code points are a valid escape
function isValidEscape(first, second) {
// If the first code point is not U+005C REVERSE SOLIDUS (\), return false.
if (first !== 0x005C) {
return false;
}
// Otherwise, if the second code point is a newline or EOF, return false.
if (isNewline(second) || second === EOF) {
return false;
}
// Otherwise, return true.
return true;
}
// § 4.3.9. Check if three code points would start an identifier
function isIdentifierStart(first, second, third) {
// Look at the first code point:
// U+002D HYPHEN-MINUS
if (first === 0x002D) {
// If the second code point is a name-start code point or a U+002D HYPHEN-MINUS,
// or the second and third code points are a valid escape, return true. Otherwise, return false.
return (
isNameStart(second) ||
second === 0x002D ||
isValidEscape(second, third)
);
}
// name-start code point
if (isNameStart(first)) {
// Return true.
return true;
}
// U+005C REVERSE SOLIDUS (\)
if (first === 0x005C) {
// If the first and second code points are a valid escape, return true. Otherwise, return false.
return isValidEscape(first, second);
}
// anything else
// Return false.
return false;
}
// § 4.3.10. Check if three code points would start a number
function isNumberStart(first, second, third) {
// Look at the first code point:
// U+002B PLUS SIGN (+)
// U+002D HYPHEN-MINUS (-)
if (first === 0x002B || first === 0x002D) {
// If the second code point is a digit, return true.
if (isDigit(second)) {
return 2;
}
// Otherwise, if the second code point is a U+002E FULL STOP (.)
// and the third code point is a digit, return true.
// Otherwise, return false.
return second === 0x002E && isDigit(third) ? 3 : 0;
}
// U+002E FULL STOP (.)
if (first === 0x002E) {
// If the second code point is a digit, return true. Otherwise, return false.
return isDigit(second) ? 2 : 0;
}
// digit
if (isDigit(first)) {
// Return true.
return 1;
}
// anything else
// Return false.
return 0;
}
//
// Misc
//
// detect BOM (https://en.wikipedia.org/wiki/Byte_order_mark)
function isBOM(code) {
// UTF-16BE
if (code === 0xFEFF) {
return 1;
}
// UTF-16LE
if (code === 0xFFFE) {
return 1;
}
return 0;
}
// Fast code category
//
// https://drafts.csswg.org/css-syntax/#tokenizer-definitions
// > non-ASCII code point
// > A code point with a value equal to or greater than U+0080 <control>
// > name-start code point
// > A letter, a non-ASCII code point, or U+005F LOW LINE (_).
// > name code point
// > A name-start code point, a digit, or U+002D HYPHEN-MINUS (-)
// That means only ASCII code points has a special meaning and we define a maps for 0..127 codes only
var CATEGORY = new Array(0x80);
charCodeCategory.Eof = 0x80;
charCodeCategory.WhiteSpace = 0x82;
charCodeCategory.Digit = 0x83;
charCodeCategory.NameStart = 0x84;
charCodeCategory.NonPrintable = 0x85;
for (var i = 0; i < CATEGORY.length; i++) {
switch (true) {
case isWhiteSpace(i):
CATEGORY[i] = charCodeCategory.WhiteSpace;
break;
case isDigit(i):
CATEGORY[i] = charCodeCategory.Digit;
break;
case isNameStart(i):
CATEGORY[i] = charCodeCategory.NameStart;
break;
case isNonPrintable(i):
CATEGORY[i] = charCodeCategory.NonPrintable;
break;
default:
CATEGORY[i] = i || charCodeCategory.Eof;
}
}
function charCodeCategory(code) {
return code < 0x80 ? CATEGORY[code] : charCodeCategory.NameStart;
}
var charCodeDefinitions = {
isDigit: isDigit,
isHexDigit: isHexDigit,
isUppercaseLetter: isUppercaseLetter,
isLowercaseLetter: isLowercaseLetter,
isLetter: isLetter,
isNonAscii: isNonAscii,
isNameStart: isNameStart,
isName: isName,
isNonPrintable: isNonPrintable,
isNewline: isNewline,
isWhiteSpace: isWhiteSpace,
isValidEscape: isValidEscape,
isIdentifierStart: isIdentifierStart,
isNumberStart: isNumberStart,
isBOM: isBOM,
charCodeCategory: charCodeCategory
};
var isDigit$1 = charCodeDefinitions.isDigit;
var isHexDigit$1 = charCodeDefinitions.isHexDigit;
var isUppercaseLetter$1 = charCodeDefinitions.isUppercaseLetter;
var isName$1 = charCodeDefinitions.isName;
var isWhiteSpace$1 = charCodeDefinitions.isWhiteSpace;
var isValidEscape$1 = charCodeDefinitions.isValidEscape;
function getCharCode(source, offset) {
return offset < source.length ? source.charCodeAt(offset) : 0;
}
function getNewlineLength(source, offset, code) {
if (code === 13 /* \r */ && getCharCode(source, offset + 1) === 10 /* \n */) {
return 2;
}
return 1;
}
function cmpChar(testStr, offset, referenceCode) {
var code = testStr.charCodeAt(offset);
// code.toLowerCase() for A..Z
if (isUppercaseLetter$1(code)) {
code = code | 32;
}
return code === referenceCode;
}
function cmpStr(testStr, start, end, referenceStr) {
if (end - start !== referenceStr.length) {
return false;
}
if (start < 0 || end > testStr.length) {
return false;
}
for (var i = start; i < end; i++) {
var testCode = testStr.charCodeAt(i);
var referenceCode = referenceStr.charCodeAt(i - start);
// testCode.toLowerCase() for A..Z
if (isUppercaseLetter$1(testCode)) {
testCode = testCode | 32;
}
if (testCode !== referenceCode) {
return false;
}
}
return true;
}
function findWhiteSpaceStart(source, offset) {
for (; offset >= 0; offset--) {
if (!isWhiteSpace$1(source.charCodeAt(offset))) {
break;
}
}
return offset + 1;
}
function findWhiteSpaceEnd(source, offset) {
for (; offset < source.length; offset++) {
if (!isWhiteSpace$1(source.charCodeAt(offset))) {
break;
}
}
return offset;
}
function findDecimalNumberEnd(source, offset) {
for (; offset < source.length; offset++) {
if (!isDigit$1(source.charCodeAt(offset))) {
break;
}
}
return offset;
}
// § 4.3.7. Consume an escaped code point
function consumeEscaped(source, offset) {
// It assumes that the U+005C REVERSE SOLIDUS (\) has already been consumed and
// that the next input code point has already been verified to be part of a valid escape.
offset += 2;
// hex digit
if (isHexDigit$1(getCharCode(source, offset - 1))) {
// Consume as many hex digits as possible, but no more than 5.
// Note that this means 1-6 hex digits have been consumed in total.
for (var maxOffset = Math.min(source.length, offset + 5); offset < maxOffset; offset++) {
if (!isHexDigit$1(getCharCode(source, offset))) {
break;
}
}
// If the next input code point is whitespace, consume it as well.
var code = getCharCode(source, offset);
if (isWhiteSpace$1(code)) {
offset += getNewlineLength(source, offset, code);
}
}
return offset;
}
// §4.3.11. Consume a name
// Note: This algorithm does not do the verification of the first few code points that are necessary
// to ensure the returned code points would constitute an <ident-token>. If that is the intended use,
// ensure that the stream starts with an identifier before calling this algorithm.
function consumeName(source, offset) {
// Let result initially be an empty string.
// Repeatedly consume the next input code point from the stream:
for (; offset < source.length; offset++) {
var code = source.charCodeAt(offset);
// name code point
if (isName$1(code)) {
// Append the code point to result.
continue;
}
// the stream starts with a valid escape
if (isValidEscape$1(code, getCharCode(source, offset + 1))) {
// Consume an escaped code point. Append the returned code point to result.
offset = consumeEscaped(source, offset) - 1;
continue;
}
// anything else
// Reconsume the current input code point. Return result.
break;
}
return offset;
}
// §4.3.12. Consume a number
function consumeNumber(source, offset) {
var code = source.charCodeAt(offset);
// 2. If the next input code point is U+002B PLUS SIGN (+) or U+002D HYPHEN-MINUS (-),
// consume it and append it to repr.
if (code === 0x002B || code === 0x002D) {
code = source.charCodeAt(offset += 1);
}
// 3. While the next input code point is a digit, consume it and append it to repr.
if (isDigit$1(code)) {
offset = findDecimalNumberEnd(source, offset + 1);
code = source.charCodeAt(offset);
}
// 4. If the next 2 input code points are U+002E FULL STOP (.) followed by a digit, then:
if (code === 0x002E && isDigit$1(source.charCodeAt(offset + 1))) {
// 4.1 Consume them.
// 4.2 Append them to repr.
code = source.charCodeAt(offset += 2);
// 4.3 Set type to "number".
// TODO
// 4.4 While the next input code point is a digit, consume it and append it to repr.
offset = findDecimalNumberEnd(source, offset);
}
// 5. If the next 2 or 3 input code points are U+0045 LATIN CAPITAL LETTER E (E)
// or U+0065 LATIN SMALL LETTER E (e), ... , followed by a digit, then:
if (cmpChar(source, offset, 101 /* e */)) {
var sign = 0;
code = source.charCodeAt(offset + 1);
// ... optionally followed by U+002D HYPHEN-MINUS (-) or U+002B PLUS SIGN (+) ...
if (code === 0x002D || code === 0x002B) {
sign = 1;
code = source.charCodeAt(offset + 2);
}
// ... followed by a digit
if (isDigit$1(code)) {
// 5.1 Consume them.
// 5.2 Append them to repr.
// 5.3 Set type to "number".
// TODO
// 5.4 While the next input code point is a digit, consume it and append it to repr.
offset = findDecimalNumberEnd(source, offset + 1 + sign + 1);
}
}
return offset;
}
// § 4.3.14. Consume the remnants of a bad url
// ... its sole use is to consume enough of the input stream to reach a recovery point
// where normal tokenizing can resume.
function consumeBadUrlRemnants(source, offset) {
// Repeatedly consume the next input code point from the stream:
for (; offset < source.length; offset++) {
var code = source.charCodeAt(offset);
// U+0029 RIGHT PARENTHESIS ())
// EOF
if (code === 0x0029) {
// Return.
offset++;
break;
}
if (isValidEscape$1(code, getCharCode(source, offset + 1))) {
// Consume an escaped code point.
// Note: This allows an escaped right parenthesis ("\)") to be encountered
// without ending the <bad-url-token>. This is otherwise identical to
// the "anything else" clause.
offset = consumeEscaped(source, offset);
}
}
return offset;
}
var utils = {
consumeEscaped: consumeEscaped,
consumeName: consumeName,
consumeNumber: consumeNumber,
consumeBadUrlRemnants: consumeBadUrlRemnants,
cmpChar: cmpChar,
cmpStr: cmpStr,
getNewlineLength: getNewlineLength,
findWhiteSpaceStart: findWhiteSpaceStart,
findWhiteSpaceEnd: findWhiteSpaceEnd
};
var TYPE$1 = _const.TYPE;
var NAME$1 = _const.NAME;
var cmpStr$1 = utils.cmpStr;
var EOF$1 = TYPE$1.EOF;
var WHITESPACE = TYPE$1.WhiteSpace;
var COMMENT = TYPE$1.Comment;
var OFFSET_MASK = 0x00FFFFFF;
var TYPE_SHIFT = 24;
var TokenStream = function() {
this.offsetAndType = null;
this.balance = null;
this.reset();
};
TokenStream.prototype = {
reset: function() {
this.eof = false;
this.tokenIndex = -1;
this.tokenType = 0;
this.tokenStart = this.firstCharOffset;
this.tokenEnd = this.firstCharOffset;
},
lookupType: function(offset) {
offset += this.tokenIndex;
if (offset < this.tokenCount) {
return this.offsetAndType[offset] >> TYPE_SHIFT;
}
return EOF$1;
},
lookupOffset: function(offset) {
offset += this.tokenIndex;
if (offset < this.tokenCount) {
return this.offsetAndType[offset - 1] & OFFSET_MASK;
}
return this.source.length;
},
lookupValue: function(offset, referenceStr) {
offset += this.tokenIndex;
if (offset < this.tokenCount) {
return cmpStr$1(
this.source,
this.offsetAndType[offset - 1] & OFFSET_MASK,
this.offsetAndType[offset] & OFFSET_MASK,
referenceStr
);
}
return false;
},
getTokenStart: function(tokenIndex) {
if (tokenIndex === this.tokenIndex) {
return this.tokenStart;
}
if (tokenIndex > 0) {
return tokenIndex < this.tokenCount
? this.offsetAndType[tokenIndex - 1] & OFFSET_MASK
: this.offsetAndType[this.tokenCount] & OFFSET_MASK;
}
return this.firstCharOffset;
},
// TODO: -> skipUntilBalanced
getRawLength: function(startToken, mode) {
var cursor = startToken;
var balanceEnd;
var offset = this.offsetAndType[Math.max(cursor - 1, 0)] & OFFSET_MASK;
var type;
loop:
for (; cursor < this.tokenCount; cursor++) {
balanceEnd = this.balance[cursor];
// stop scanning on balance edge that points to offset before start token
if (balanceEnd < startToken) {
break loop;
}
type = this.offsetAndType[cursor] >> TYPE_SHIFT;
// check token is stop type
switch (mode(type, this.source, offset)) {
case 1:
break loop;
case 2:
cursor++;
break loop;
default:
offset = this.offsetAndType[cursor] & OFFSET_MASK;
// fast forward to the end of balanced block
if (this.balance[balanceEnd] === cursor) {
cursor = balanceEnd;
}
}
}
return cursor - this.tokenIndex;
},
isBalanceEdge: function(pos) {
return this.balance[this.tokenIndex] < pos;
},
isDelim: function(code, offset) {
if (offset) {
return (
this.lookupType(offset) === TYPE$1.Delim &&
this.source.charCodeAt(this.lookupOffset(offset)) === code
);
}
return (
this.tokenType === TYPE$1.Delim &&
this.source.charCodeAt(this.tokenStart) === code
);
},
getTokenValue: function() {
return this.source.substring(this.tokenStart, this.tokenEnd);
},
getTokenLength: function() {
return this.tokenEnd - this.tokenStart;
},
substrToCursor: function(start) {
return this.source.substring(start, this.tokenStart);
},
skipWS: function() {
for (var i = this.tokenIndex, skipTokenCount = 0; i < this.tokenCount; i++, skipTokenCount++) {
if ((this.offsetAndType[i] >> TYPE_SHIFT) !== WHITESPACE) {
break;
}
}
if (skipTokenCount > 0) {
this.skip(skipTokenCount);
}
},
skipSC: function() {
while (this.tokenType === WHITESPACE || this.tokenType === COMMENT) {
this.next();
}
},
skip: function(tokenCount) {
var next = this.tokenIndex + tokenCount;
if (next < this.tokenCount) {
this.tokenIndex = next;
this.tokenStart = this.offsetAndType[next - 1] & OFFSET_MASK;
next = this.offsetAndType[next];
this.tokenType = next >> TYPE_SHIFT;
this.tokenEnd = next & OFFSET_MASK;
} else {
this.tokenIndex = this.tokenCount;
this.next();
}
},
next: function() {
var next = this.tokenIndex + 1;
if (next < this.tokenCount) {
this.tokenIndex = next;
this.tokenStart = this.tokenEnd;
next = this.offsetAndType[next];
this.tokenType = next >> TYPE_SHIFT;
this.tokenEnd = next & OFFSET_MASK;
} else {
this.tokenIndex = this.tokenCount;
this.eof = true;
this.tokenType = EOF$1;
this.tokenStart = this.tokenEnd = this.source.length;
}
},
dump: function() {
var offset = this.firstCharOffset;
return Array.prototype.slice.call(this.offsetAndType, 0, this.tokenCount).map(function(item, idx) {
var start = offset;
var end = item & OFFSET_MASK;
offset = end;
return {
idx: idx,
type: NAME$1[item >> TYPE_SHIFT],
chunk: this.source.substring(start, end),
balance: this.balance[idx]
};
}, this);
}
};
var TokenStream_1 = TokenStream;
function noop(value) {
return value;
}
function generateMultiplier(multiplier) {
if (multiplier.min === 0 && multiplier.max === 0) {
return '*';
}
if (multiplier.min === 0 && multiplier.max === 1) {
return '?';
}
if (multiplier.min === 1 && multiplier.max === 0) {
return multiplier.comma ? '#' : '+';
}
if (multiplier.min === 1 && multiplier.max === 1) {
return '';
}
return (
(multiplier.comma ? '#' : '') +
(multiplier.min === multiplier.max
? '{' + multiplier.min + '}'
: '{' + multiplier.min + ',' + (multiplier.max !== 0 ? multiplier.max : '') + '}'
)
);
}
function generateTypeOpts(node) {
switch (node.type) {
case 'Range':
return (
' [' +
(node.min === null ? '-∞' : node.min) +
',' +
(node.max === null ? '∞' : node.max) +
']'
);
default:
throw new Error('Unknown node type `' + node.type + '`');
}
}
function generateSequence(node, decorate, forceBraces, compact) {
var combinator = node.combinator === ' ' || compact ? node.combinator : ' ' + node.combinator + ' ';
var result = node.terms.map(function(term) {
return generate(term, decorate, forceBraces, compact);
}).join(combinator);
if (node.explicit || forceBraces) {
result = (compact || result[0] === ',' ? '[' : '[ ') + result + (compact ? ']' : ' ]');
}
return result;
}
function generate(node, decorate, forceBraces, compact) {
var result;
switch (node.type) {
case 'Group':
result =
generateSequence(node, decorate, forceBraces, compact) +
(node.disallowEmpty ? '!' : '');
break;
case 'Multiplier':
// return since node is a composition
return (
generate(node.term, decorate, forceBraces, compact) +
decorate(generateMultiplier(node), node)
);
case 'Type':
result = '<' + node.name + (node.opts ? decorate(generateTypeOpts(node.opts), node.opts) : '') + '>';
break;
case 'Property':
result = '<\'' + node.name + '\'>';
break;
case 'Keyword':
result = node.name;
break;
case 'AtKeyword':
result = '@' + node.name;
break;
case 'Function':
result = node.name + '(';
break;
case 'String':
case 'Token':
result = node.value;
break;
case 'Comma':
result = ',';
break;
default:
throw new Error('Unknown node type `' + node.type + '`');
}
return decorate(result, node);
}
var generate_1 = function(node, options) {
var decorate = noop;
var forceBraces = false;
var compact = false;
if (typeof options === 'function') {
decorate = options;
} else if (options) {
forceBraces = Boolean(options.forceBraces);
compact = Boolean(options.compact);
if (typeof options.decorate === 'function') {
decorate = options.decorate;
}
}
return generate(node, decorate, forceBraces, compact);
};
function fromMatchResult(matchResult) {
var tokens = matchResult.tokens;
var longestMatch = matchResult.longestMatch;
var node = longestMatch < tokens.length ? tokens[longestMatch].node : null;
var mismatchOffset = -1;
var entries = 0;
var css = '';
for (var i = 0; i < tokens.length; i++) {
if (i === longestMatch) {
mismatchOffset = css.length;
}
if (node !== null && tokens[i].node === node) {
if (i <= longestMatch) {
entries++;
} else {
entries = 0;
}
}
css += tokens[i].value;
}
return {
node: node,
css: css,
mismatchOffset: mismatchOffset === -1 ? css.length : mismatchOffset,
last: node === null || entries > 1
};
}
function getLocation(node, point) {
var loc = node && node.loc && node.loc[point];
if (loc) {
return {
offset: loc.offset,
line: loc.line,
column: loc.column
};
}
return null;
}
var SyntaxReferenceError = function(type, referenceName) {
var error = createCustomError(
'SyntaxReferenceError',
type + (referenceName ? ' `' + referenceName + '`' : '')
);
error.reference = referenceName;
return error;
};
var MatchError = function(message, syntax, node, matchResult) {
var error = createCustomError('SyntaxMatchError', message);
var details = fromMatchResult(matchResult);
var mismatchOffset = details.mismatchOffset || 0;
var badNode = details.node || node;
var end = getLocation(badNode, 'end');
var start = details.last ? end : getLocation(badNode, 'start');
var css = details.css;
error.rawMessage = message;
error.syntax = syntax ? generate_1(syntax) : '<generic>';
error.css = css;
error.mismatchOffset = mismatchOffset;
error.loc = {
source: (badNode && badNode.loc && badNode.loc.source) || '<unknown>',
start: start,
end: end
};
error.line = start ? start.line : undefined;
error.column = start ? start.column : undefined;
error.offset = start ? start.offset : undefined;
error.message = message + '\n' +
' syntax: ' + error.syntax + '\n' +
' value: ' + (error.css || '<empty string>') + '\n' +
' --------' + new Array(error.mismatchOffset + 1).join('-') + '^';
return error;
};
var error = {
SyntaxReferenceError: SyntaxReferenceError,
MatchError: MatchError
};
var hasOwnProperty = Object.prototype.hasOwnProperty;
var keywords = Object.create(null);
var properties = Object.create(null);
var HYPHENMINUS = 45; // '-'.charCodeAt()
function isCustomProperty(str, offset) {
offset = offset || 0;
return str.length - offset >= 2 &&
str.charCodeAt(offset) === HYPHENMINUS &&
str.charCodeAt(offset + 1) === HYPHENMINUS;
}
function getVendorPrefix(str, offset) {
offset = offset || 0;
// verdor prefix should be at least 3 chars length
if (str.length - offset >= 3) {
// vendor prefix starts with hyper minus following non-hyper minus
if (str.charCodeAt(offset) === HYPHENMINUS &&
str.charCodeAt(offset + 1) !== HYPHENMINUS) {
// vendor prefix should contain a hyper minus at the ending
var secondDashIndex = str.indexOf('-', offset + 2);
if (secondDashIndex !== -1) {
return str.substring(offset, secondDashIndex + 1);
}
}
}
return '';
}
function getKeywordDescriptor(keyword) {
if (hasOwnProperty.call(keywords, keyword)) {
return keywords[keyword];
}
var name = keyword.toLowerCase();
if (hasOwnProperty.call(keywords, name)) {
return keywords[keyword] = keywords[name];
}
var custom = isCustomProperty(name, 0);
var vendor = !custom ? getVendorPrefix(name, 0) : '';
return keywords[keyword] = Object.freeze({
basename: name.substr(vendor.length),
name: name,
vendor: vendor,
prefix: vendor,
custom: custom
});
}
function getPropertyDescriptor(property) {
if (hasOwnProperty.call(properties, property)) {
return properties[property];
}
var name = property;
var hack = property[0];
if (hack === '/') {
hack = property[1] === '/' ? '//' : '/';
} else if (hack !== '_' &&
hack !== '*' &&
hack !== '$' &&
hack !== '#' &&
hack !== '+' &&
hack !== '&') {
hack = '';
}
var custom = isCustomProperty(name, hack.length);
// re-use result when possible (the same as for lower case)
if (!custom) {
name = name.toLowerCase();
if (hasOwnProperty.call(properties, name)) {
return properties[property] = properties[name];
}
}
var vendor = !custom ? getVendorPrefix(name, hack.length) : '';
var prefix = name.substr(0, hack.length + vendor.length);
return properties[property] = Object.freeze({
basename: name.substr(prefix.length),
name: name.substr(hack.length),
hack: hack,
vendor: vendor,
prefix: prefix,
custom: custom
});
}
var names = {
keyword: getKeywordDescriptor,
property: getPropertyDescriptor,
isCustomProperty: isCustomProperty,
vendorPrefix: getVendorPrefix
};
var MIN_SIZE = 16 * 1024;
var SafeUint32Array = typeof Uint32Array !== 'undefined' ? Uint32Array : Array; // fallback on Array when TypedArray is not supported
var adoptBuffer = function adoptBuffer(buffer, size) {
if (buffer === null || buffer.length < size) {
return new SafeUint32Array(Math.max(size + 1024, MIN_SIZE));
}
return buffer;
};
var TYPE$2 = _const.TYPE;
var isNewline$1 = charCodeDefinitions.isNewline;
var isName$2 = charCodeDefinitions.isName;
var isValidEscape$2 = charCodeDefinitions.isValidEscape;
var isNumberStart$1 = charCodeDefinitions.isNumberStart;
var isIdentifierStart$1 = charCodeDefinitions.isIdentifierStart;
var charCodeCategory$1 = charCodeDefinitions.charCodeCategory;
var isBOM$1 = charCodeDefinitions.isBOM;
var cmpStr$2 = utils.cmpStr;
var getNewlineLength$1 = utils.getNewlineLength;
var findWhiteSpaceEnd$1 = utils.findWhiteSpaceEnd;
var consumeEscaped$1 = utils.consumeEscaped;
var consumeName$1 = utils.consumeName;
var consumeNumber$1 = utils.consumeNumber;
var consumeBadUrlRemnants$1 = utils.consumeBadUrlRemnants;
var OFFSET_MASK$1 = 0x00FFFFFF;
var TYPE_SHIFT$1 = 24;
function tokenize(source, stream) {
function getCharCode(offset) {
return offset < sourceLength ? source.charCodeAt(offset) : 0;
}
// § 4.3.3. Consume a numeric token
function consumeNumericToken() {
// Consume a number and let number be the result.
offset = consumeNumber$1(source, offset);
// If the next 3 input code points would start an identifier, then:
if (isIdentifierStart$1(getCharCode(offset), getCharCode(offset + 1), getCharCode(offset + 2))) {
// Create a <dimension-token> with the same value and type flag as number, and a unit set initially to the empty string.
// Consume a name. Set the <dimension-token>’s unit to the returned value.
// Return the <dimension-token>.
type = TYPE$2.Dimension;
offset = consumeName$1(source, offset);
return;
}
// Otherwise, if the next input code point is U+0025 PERCENTAGE SIGN (%), consume it.
if (getCharCode(offset) === 0x0025) {
// Create a <percentage-token> with the same value as number, and return it.
type = TYPE$2.Percentage;
offset++;
return;
}
// Otherwise, create a <number-token> with the same value and type flag as number, and return it.
type = TYPE$2.Number;
}
// § 4.3.4. Consume an ident-like token
function consumeIdentLikeToken() {
const nameStartOffset = offset;
// Consume a name, and let string be the result.
offset = consumeName$1(source, offset);
// If string’s value is an ASCII case-insensitive match for "url",
// and the next input code point is U+0028 LEFT PARENTHESIS ((), consume it.
if (cmpStr$2(source, nameStartOffset, offset, 'url') && getCharCode(offset) === 0x0028) {
// While the next two input code points are whitespace, consume the next input code point.
offset = findWhiteSpaceEnd$1(source, offset + 1);
// If the next one or two input code points are U+0022 QUOTATION MARK ("), U+0027 APOSTROPHE ('),
// or whitespace followed by U+0022 QUOTATION MARK (") or U+0027 APOSTROPHE ('),
// then create a <function-token> with its value set to string and return it.
if (getCharCode(offset) === 0x0022 ||
getCharCode(offset) === 0x0027) {
type = TYPE$2.Function;
offset = nameStartOffset + 4;
return;
}
// Otherwise, consume a url token, and return it.
consumeUrlToken();
return;
}
// Otherwise, if the next input code point is U+0028 LEFT PARENTHESIS ((), consume it.
// Create a <function-token> with its value set to string and return it.
if (getCharCode(offset) === 0x0028) {
type = TYPE$2.Function;
offset++;
return;
}
// Otherwise, create an <ident-token> with its value set to string and return it.
type = TYPE$2.Ident;
}
// § 4.3.5. Consume a string token
function consumeStringToken(endingCodePoint) {
// This algorithm may be called with an ending code point, which denotes the code point
// that ends the string. If an ending code point is not specified,
// the current input code point is used.
if (!endingCodePoint) {
endingCodePoint = getCharCode(offset++);
}
// Initially create a <string-token> with its value set to the empty string.
type = TYPE$2.String;
// Repeatedly consume the next input code point from the stream:
for (; offset < source.length; offset++) {
var code = source.charCodeAt(offset);
switch (charCodeCategory$1(code)) {
// ending code point
case endingCodePoint:
// Return the <string-token>.
offset++;
return;
// EOF
case charCodeCategory$1.Eof:
// This is a parse error. Return the <string-token>.
return;
// newline
case charCodeCategory$1.WhiteSpace:
if (isNewline$1(code)) {
// This is a parse error. Reconsume the current input code point,
// create a <bad-string-token>, and return it.
offset += getNewlineLength$1(source, offset, code);
type = TYPE$2.BadString;
return;
}
break;
// U+005C REVERSE SOLIDUS (\)
case 0x005C:
// If the next input code point is EOF, do nothing.
if (offset === source.length - 1) {
break;
}
var nextCode = getCharCode(offset + 1);
// Otherwise, if the next input code point is a newline, consume it.
if (isNewline$1(nextCode)) {
offset += getNewlineLength$1(source, offset + 1, nextCode);
} else if (isValidEscape$2(code, nextCode)) {
// Otherwise, (the stream starts with a valid escape) consume
// an escaped code point and append the returned code point to
// the <string-token>’s value.
offset = consumeEscaped$1(source, offset) - 1;
}
break;
// anything else
// Append the current input code point to the <string-token>’s value.
}
}
}
// § 4.3.6. Consume a url token
// Note: This algorithm assumes that the initial "url(" has already been consumed.
// This algorithm also assumes that it’s being called to consume an "unquoted" value, like url(foo).
// A quoted value, like url("foo"), is parsed as a <function-token>. Consume an ident-like token
// automatically handles this distinction; this algorithm shouldn’t be called directly otherwise.
function consumeUrlToken() {
// Initially create a <url-token> with its value set to the empty string.
type = TYPE$2.Url;
// Consume as much whitespace as possible.
offset = findWhiteSpaceEnd$1(source, offset);
// Repeatedly consume the next input code point from the stream:
for (; offset < source.length; offset++) {
var code = source.charCodeAt(offset);
switch (charCodeCategory$1(code)) {
// U+0029 RIGHT PARENTHESIS ())
case 0x0029:
// Return the <url-token>.
offset++;
return;
// EOF
case charCodeCategory$1.Eof:
// This is a parse error. Return the <url-token>.
return;
// whitespace
case charCodeCategory$1.WhiteSpace:
// Consume as much whitespace as possible.
offset = findWhiteSpaceEnd$1(source, offset);
// If the next input code point is U+0029 RIGHT PARENTHESIS ()) or EOF,
// consume it and return the <url-token>
// (if EOF was encountered, this is a parse error);
if (getCharCode(offset) === 0x0029 || offset >= source.length) {
if (offset < source.length) {
offset++;
}
return;
}
// otherwise, consume the remnants of a bad url, create a <bad-url-token>,
// and return it.
offset = consumeBadUrlRemnants$1(source, offset);
type = TYPE$2.BadUrl;
return;
// U+0022 QUOTATION MARK (")
// U+0027 APOSTROPHE (')
// U+0028 LEFT PARENTHESIS (()
// non-printable code point
case 0x0022:
case 0x0027:
case 0x0028:
case charCodeCategory$1.NonPrintable:
// This is a parse error. Consume the remnants of a bad url,
// create a <bad-url-token>, and return it.
offset = consumeBadUrlRemnants$1(source, offset);
type = TYPE$2.BadUrl;
return;
// U+005C REVERSE SOLIDUS (\)
case 0x005C:
// If the stream starts with a valid escape, consume an escaped code point and
// append the returned code point to the <url-token>’s value.
if (isValidEscape$2(code, getCharCode(offset + 1))) {
offset = consumeEscaped$1(source, offset) - 1;
break;
}
// Otherwise, this is a parse error. Consume the remnants of a bad url,
// create a <bad-url-token>, and return it.
offset = consumeBadUrlRemnants$1(source, offset);
type = TYPE$2.BadUrl;
return;
// anything else
// Append the current input code point to the <url-token>’s value.
}
}
}
if (!stream) {
stream = new TokenStream_1();
}
// ensure source is a string
source = String(source || '');
var sourceLength = source.length;
var offsetAndType = adoptBuffer(stream.offsetAndType, sourceLength + 1); // +1 because of eof-token
var balance = adoptBuffer(stream.balance, sourceLength + 1);
var tokenCount = 0;
var start = isBOM$1(getCharCode(0));
var offset = start;
var balanceCloseType = 0;
var balanceStart = 0;
var balancePrev = 0;
// https://drafts.csswg.org/css-syntax-3/#consume-token
// § 4.3.1. Consume a token
while (offset < sourceLength) {
var code = source.charCodeAt(offset);
var type = 0;
balance[tokenCount] = sourceLength;
switch (charCodeCategory$1(code)) {
// whitespace
case charCodeCategory$1.WhiteSpace:
// Consume as much whitespace as possible. Return a <whitespace-token>.
type = TYPE$2.WhiteSpace;
offset = findWhiteSpaceEnd$1(source, offset + 1);
break;
// U+0022 QUOTATION MARK (")
case 0x0022:
// Consume a string token and return it.
consumeStringToken();
break;
// U+0023 NUMBER SIGN (#)
case 0x0023:
// If the next input code point is a name code point or the next two input code points are a valid escape, then:
if (isName$2(getCharCode(offset + 1)) || isValidEscape$2(getCharCode(offset + 1), getCharCode(offset + 2))) {
// Create a <hash-token>.
type = TYPE$2.Hash;
// If the next 3 input code points would start an identifier, set the <hash-token>’s type flag to "id".
// if (isIdentifierStart(getCharCode(offset + 1), getCharCode(offset + 2), getCharCode(offset + 3))) {
// // TODO: set id flag
// }
// Consume a name, and set the <hash-token>’s value to the returned string.
offset = consumeName$1(source, offset + 1);
// Return the <hash-token>.
} else {
// Otherwise, return a <delim-token> with its value set to the current input code point.
type = TYPE$2.Delim;
offset++;
}
break;
// U+0027 APOSTROPHE (')
case 0x0027:
// Consume a string token and return it.
consumeStringToken();
break;
// U+0028 LEFT PARENTHESIS (()
case 0x0028:
// Return a <(-token>.
type = TYPE$2.LeftParenthesis;
offset++;
break;
// U+0029 RIGHT PARENTHESIS ())
case 0x0029:
// Return a <)-token>.
type = TYPE$2.RightParenthesis;
offset++;
break;
// U+002B PLUS SIGN (+)
case 0x002B:
// If the input stream starts with a number, ...
if (isNumberStart$1(code, getCharCode(offset + 1), getCharCode(offset + 2))) {
// ... reconsume the current input code point, consume a numeric token, and return it.
consumeNumericToken();
} else {
// Otherwise, return a <delim-token> with its value set to the current input code point.
type = TYPE$2.Delim;
offset++;
}
break;
// U+002C COMMA (,)
case 0x002C:
// Return a <comma-token>.
type = TYPE$2.Comma;
offset++;
break;
// U+002D HYPHEN-MINUS (-)
case 0x002D:
// If the input stream starts with a number, reconsume the current input code point, consume a numeric token, and return it.
if (isNumberStart$1(code, getCharCode(offset + 1), getCharCode(offset + 2))) {
consumeNumericToken();
} else {
// Otherwise, if the next 2 input code points are U+002D HYPHEN-MINUS U+003E GREATER-THAN SIGN (->), consume them and return a <CDC-token>.
if (getCharCode(offset + 1) === 0x002D &&
getCharCode(offset + 2) === 0x003E) {
type = TYPE$2.CDC;
offset = offset + 3;
} else {
// Otherwise, if the input stream starts with an identifier, ...
if (isIdentifierStart$1(code, getCharCode(offset + 1), getCharCode(offset + 2))) {
// ... reconsume the current input code point, consume an ident-like token, and return it.
consumeIdentLikeToken();
} else {
// Otherwise, return a <delim-token> with its value set to the current input code point.
type = TYPE$2.Delim;
offset++;
}
}
}
break;
// U+002E FULL STOP (.)
case 0x002E:
// If the input stream starts with a number, ...
if (isNumberStart$1(code, getCharCode(offset + 1), getCharCode(offset + 2))) {
// ... reconsume the current input code point, consume a numeric token, and return it.
consumeNumericToken();
} else {
// Otherwise, return a <delim-token> with its value set to the current input code point.
type = TYPE$2.Delim;
offset++;
}
break;
// U+002F SOLIDUS (/)
case 0x002F:
// If the next two input code point are U+002F SOLIDUS (/) followed by a U+002A ASTERISK (*),
if (getCharCode(offset + 1) === 0x002A) {
// ... consume them and all following code points up to and including the first U+002A ASTERISK (*)
// followed by a U+002F SOLIDUS (/), or up to an EOF code point.
type = TYPE$2.Comment;
offset = source.indexOf('*/', offset + 2) + 2;
if (offset === 1) {
offset = source.length;
}
} else {
type = TYPE$2.Delim;
offset++;
}
break;
// U+003A COLON (:)
case 0x003A:
// Return a <colon-token>.
type = TYPE$2.Colon;
offset++;
break;
// U+003B SEMICOLON (;)
case 0x003B:
// Return a <semicolon-token>.
type = TYPE$2.Semicolon;
offset++;
break;
// U+003C LESS-THAN SIGN (<)
case 0x003C:
// If the next 3 input code points are U+0021 EXCLAMATION MARK U+002D HYPHEN-MINUS U+002D HYPHEN-MINUS (!--), ...
if (getCharCode(offset + 1) === 0x0021 &&
getCharCode(offset + 2) === 0x002D &&
getCharCode(offset + 3) === 0x002D) {
// ... consume them and return a <CDO-token>.
type = TYPE$2.CDO;
offset = offset + 4;
} else {
// Otherwise, return a <delim-token> with its value set to the current input code point.
type = TYPE$2.Delim;
offset++;
}
break;
// U+0040 COMMERCIAL AT (@)
case 0x0040:
// If the next 3 input code points would start an identifier, ...
if (isIdentifierStart$1(getCharCode(offset + 1), getCharCode(offset + 2), getCharCode(offset + 3))) {
// ... consume a name, create an <at-keyword-token> with its value set to the returned value, and return it.
type = TYPE$2.AtKeyword;
offset = consumeName$1(source, offset + 1);
} else {
// Otherwise, return a <delim-token> with its value set to the current input code point.
type = TYPE$2.Delim;
offset++;
}
break;
// U+005B LEFT SQUARE BRACKET ([)
case 0x005B:
// Return a <[-token>.
type = TYPE$2.LeftSquareBracket;
offset++;
break;
// U+005C REVERSE SOLIDUS (\)
case 0x005C:
// If the input stream starts with a valid escape, ...
if (isValidEscape$2(code, getCharCode(offset + 1))) {
// ... reconsume the current input code point, consume an ident-like token, and return it.
consumeIdentLikeToken();
} else {
// Otherwise, this is a parse error. Return a <delim-token> with its value set to the current input code point.
type = TYPE$2.Delim;
offset++;
}
break;
// U+005D RIGHT SQUARE BRACKET (])
case 0x005D:
// Return a <]-token>.
type = TYPE$2.RightSquareBracket;
offset++;
break;
// U+007B LEFT CURLY BRACKET ({)
case 0x007B:
// Return a <{-token>.
type = TYPE$2.LeftCurlyBracket;
offset++;
break;
// U+007D RIGHT CURLY BRACKET (})
case 0x007D:
// Return a <}-token>.
type = TYPE$2.RightCurlyBracket;
offset++;
break;
// digit
case charCodeCategory$1.Digit:
// Reconsume the current input code point, consume a numeric token, and return it.
consumeNumericToken();
break;
// name-start code point
case charCodeCategory$1.NameStart:
// Reconsume the current input code point, consume an ident-like token, and return it.
consumeIdentLikeToken();
break;
// EOF
case charCodeCategory$1.Eof:
// Return an <EOF-token>.
break;
// anything else
default:
// Return a <delim-token> with its value set to the current input code point.
type = TYPE$2.Delim;
offset++;
}
switch (type) {
case balanceCloseType:
balancePrev = balanceStart & OFFSET_MASK$1;
balanceStart = balance[balancePrev];
balanceCloseType = balanceStart >> TYPE_SHIFT$1;
balance[tokenCount] = balancePrev;
balance[balancePrev++] = tokenCount;
for (; balancePrev < tokenCount; balancePrev++) {
if (balance[balancePrev] === sourceLength) {
balance[balancePrev] = tokenCount;
}
}
break;
case TYPE$2.LeftParenthesis:
case TYPE$2.Function:
balance[tokenCount] = balanceStart;
balanceCloseType = TYPE$2.RightParenthesis;
balanceStart = (balanceCloseType << TYPE_SHIFT$1) | tokenCount;
break;
case TYPE$2.LeftSquareBracket:
balance[tokenCount] = balanceStart;
balanceCloseType = TYPE$2.RightSquareBracket;
balanceStart = (balanceCloseType << TYPE_SHIFT$1) | tokenCount;
break;
case TYPE$2.LeftCurlyBracket:
balance[tokenCount] = balanceStart;
balanceCloseType = TYPE$2.RightCurlyBracket;
balanceStart = (balanceCloseType << TYPE_SHIFT$1) | tokenCount;
break;
}
offsetAndType[tokenCount++] = (type << TYPE_SHIFT$1) | offset;
}
// finalize buffers
offsetAndType[tokenCount] = (TYPE$2.EOF << TYPE_SHIFT$1) | offset; // <EOF-token>
balance[tokenCount] = sourceLength;
balance[sourceLength] = sourceLength; // prevents false positive balance match with any token
while (balanceStart !== 0) {
balancePrev = balanceStart & OFFSET_MASK$1;
balanceStart = balance[balancePrev];
balance[balancePrev] = sourceLength;
}
// update stream
stream.source = source;
stream.firstCharOffset = start;
stream.offsetAndType = offsetAndType;
stream.tokenCount = tokenCount;
stream.balance = balance;
stream.reset();
stream.next();
return stream;
}
// extend tokenizer with constants
Object.keys(_const).forEach(function(key) {
tokenize[key] = _const[key];
});
// extend tokenizer with static methods from utils
Object.keys(charCodeDefinitions).forEach(function(key) {
tokenize[key] = charCodeDefinitions[key];
});
Object.keys(utils).forEach(function(key) {
tokenize[key] = utils[key];
});
var tokenizer = tokenize;
var isDigit$2 = tokenizer.isDigit;
var cmpChar$1 = tokenizer.cmpChar;
var TYPE$3 = tokenizer.TYPE;
var DELIM = TYPE$3.Delim;
var WHITESPACE$1 = TYPE$3.WhiteSpace;
var COMMENT$1 = TYPE$3.Comment;
var IDENT = TYPE$3.Ident;
var NUMBER = TYPE$3.Number;
var DIMENSION = TYPE$3.Dimension;
var PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS$1 = 0x002D; // U+002D HYPHEN-MINUS (-)
var N = 0x006E; // U+006E LATIN SMALL LETTER N (n)
var DISALLOW_SIGN = true;
var ALLOW_SIGN = false;
function isDelim(token, code) {
return token !== null && token.type === DELIM && token.value.charCodeAt(0) === code;
}
function skipSC(token, offset, getNextToken) {
while (token !== null && (token.type === WHITESPACE$1 || token.type === COMMENT$1)) {
token = getNextToken(++offset);
}
return offset;
}
function checkInteger(token, valueOffset, disallowSign, offset) {
if (!token) {
return 0;
}
var code = token.value.charCodeAt(valueOffset);
if (code === PLUSSIGN || code === HYPHENMINUS$1) {
if (disallowSign) {
// Number sign is not allowed
return 0;
}
valueOffset++;
}
for (; valueOffset < token.value.length; valueOffset++) {
if (!isDigit$2(token.value.charCodeAt(valueOffset))) {
// Integer is expected
return 0;
}
}
return offset + 1;
}
// ... <signed-integer>
// ... ['+' | '-'] <signless-integer>
function consumeB(token, offset_, getNextToken) {
var sign = false;
var offset = skipSC(token, offset_, getNextToken);
token = getNextToken(offset);
if (token === null) {
return offset_;
}
if (token.type !== NUMBER) {
if (isDelim(token, PLUSSIGN) || isDelim(token, HYPHENMINUS$1)) {
sign = true;
offset = skipSC(getNextToken(++offset), offset, getNextToken);
token = getNextToken(offset);
if (token === null && token.type !== NUMBER) {
return 0;
}
} else {
return offset_;
}
}
if (!sign) {
var code = token.value.charCodeAt(0);
if (code !== PLUSSIGN && code !== HYPHENMINUS$1) {
// Number sign is expected
return 0;
}
}
return checkInteger(token, sign ? 0 : 1, sign, offset);
}
// An+B microsyntax https://www.w3.org/TR/css-syntax-3/#anb
var genericAnPlusB = function anPlusB(token, getNextToken) {
/* eslint-disable brace-style*/
var offset = 0;
if (!token) {
return 0;
}
// <integer>
if (token.type === NUMBER) {
return checkInteger(token, 0, ALLOW_SIGN, offset); // b
}
// -n
// -n <signed-integer>
// -n ['+' | '-'] <signless-integer>
// -n- <signless-integer>
// <dashndashdigit-ident>
else if (token.type === IDENT && token.value.charCodeAt(0) === HYPHENMINUS$1) {
// expect 1st char is N
if (!cmpChar$1(token.value, 1, N)) {
return 0;
}
switch (token.value.length) {
// -n
// -n <signed-integer>
// -n ['+' | '-'] <signless-integer>
case 2:
return consumeB(getNextToken(++offset), offset, getNextToken);
// -n- <signless-integer>
case 3:
if (token.value.charCodeAt(2) !== HYPHENMINUS$1) {
return 0;
}
offset = skipSC(getNextToken(++offset), offset, getNextToken);
token = getNextToken(offset);
return checkInteger(token, 0, DISALLOW_SIGN, offset);
// <dashndashdigit-ident>
default:
if (token.value.charCodeAt(2) !== HYPHENMINUS$1) {
return 0;
}
return checkInteger(token, 3, DISALLOW_SIGN, offset);
}
}
// '+'? n
// '+'? n <signed-integer>
// '+'? n ['+' | '-'] <signless-integer>
// '+'? n- <signless-integer>
// '+'? <ndashdigit-ident>
else if (token.type === IDENT || (isDelim(token, PLUSSIGN) && getNextToken(offset + 1).type === IDENT)) {
// just ignore a plus
if (token.type !== IDENT) {
token = getNextToken(++offset);
}
if (token === null || !cmpChar$1(token.value, 0, N)) {
return 0;
}
switch (token.value.length) {
// '+'? n
// '+'? n <signed-integer>
// '+'? n ['+' | '-'] <signless-integer>
case 1:
return consumeB(getNextToken(++offset), offset, getNextToken);
// '+'? n- <signless-integer>
case 2:
if (token.value.charCodeAt(1) !== HYPHENMINUS$1) {
return 0;
}
offset = skipSC(getNextToken(++offset), offset, getNextToken);
token = getNextToken(offset);
return checkInteger(token, 0, DISALLOW_SIGN, offset);
// '+'? <ndashdigit-ident>
default:
if (token.value.charCodeAt(1) !== HYPHENMINUS$1) {
return 0;
}
return checkInteger(token, 2, DISALLOW_SIGN, offset);
}
}
// <ndashdigit-dimension>
// <ndash-dimension> <signless-integer>
// <n-dimension>
// <n-dimension> <signed-integer>
// <n-dimension> ['+' | '-'] <signless-integer>
else if (token.type === DIMENSION) {
var code = token.value.charCodeAt(0);
var sign = code === PLUSSIGN || code === HYPHENMINUS$1 ? 1 : 0;
for (var i = sign; i < token.value.length; i++) {
if (!isDigit$2(token.value.charCodeAt(i))) {
break;
}
}
if (i === sign) {
// Integer is expected
return 0;
}
if (!cmpChar$1(token.value, i, N)) {
return 0;
}
// <n-dimension>
// <n-dimension> <signed-integer>
// <n-dimension> ['+' | '-'] <signless-integer>
if (i + 1 === token.value.length) {
return consumeB(getNextToken(++offset), offset, getNextToken);
} else {
if (token.value.charCodeAt(i + 1) !== HYPHENMINUS$1) {
return 0;
}
// <ndash-dimension> <signless-integer>
if (i + 2 === token.value.length) {
offset = skipSC(getNextToken(++offset), offset, getNextToken);
token = getNextToken(offset);
return checkInteger(token, 0, DISALLOW_SIGN, offset);
}
// <ndashdigit-dimension>
else {
return checkInteger(token, i + 2, DISALLOW_SIGN, offset);
}
}
}
return 0;
};
var isHexDigit$2 = tokenizer.isHexDigit;
var cmpChar$2 = tokenizer.cmpChar;
var TYPE$4 = tokenizer.TYPE;
var IDENT$1 = TYPE$4.Ident;
var DELIM$1 = TYPE$4.Delim;
var NUMBER$1 = TYPE$4.Number;
var DIMENSION$1 = TYPE$4.Dimension;
var PLUSSIGN$1 = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS$2 = 0x002D; // U+002D HYPHEN-MINUS (-)
var QUESTIONMARK = 0x003F; // U+003F QUESTION MARK (?)
var U = 0x0075; // U+0075 LATIN SMALL LETTER U (u)
function isDelim$1(token, code) {
return token !== null && token.type === DELIM$1 && token.value.charCodeAt(0) === code;
}
function startsWith(token, code) {
return token.value.charCodeAt(0) === code;
}
function hexSequence(token, offset, allowDash) {
for (var pos = offset, hexlen = 0; pos < token.value.length; pos++) {
var code = token.value.charCodeAt(pos);
if (code === HYPHENMINUS$2 && allowDash && hexlen !== 0) {
if (hexSequence(token, offset + hexlen + 1, false) > 0) {
return 6; // dissallow following question marks
}
return 0; // dash at the ending of a hex sequence is not allowed
}
if (!isHexDigit$2(code)) {
return 0; // not a hex digit
}
if (++hexlen > 6) {
return 0; // too many hex digits
} }
return hexlen;
}
function withQuestionMarkSequence(consumed, length, getNextToken) {
if (!consumed) {
return 0; // nothing consumed
}
while (isDelim$1(getNextToken(length), QUESTIONMARK)) {
if (++consumed > 6) {
return 0; // too many question marks
}
length++;
}
return length;
}
// https://drafts.csswg.org/css-syntax/#urange
// Informally, the <urange> production has three forms:
// U+0001
// Defines a range consisting of a single code point, in this case the code point "1".
// U+0001-00ff
// Defines a range of codepoints between the first and the second value, in this case
// the range between "1" and "ff" (255 in decimal) inclusive.
// U+00??
// Defines a range of codepoints where the "?" characters range over all hex digits,
// in this case defining the same as the value U+0000-00ff.
// In each form, a maximum of 6 digits is allowed for each hexadecimal number (if you treat "?" as a hexadecimal digit).
//
// <urange> =
// u '+' <ident-token> '?'* |
// u <dimension-token> '?'* |
// u <number-token> '?'* |
// u <number-token> <dimension-token> |
// u <number-token> <number-token> |
// u '+' '?'+
var genericUrange = function urange(token, getNextToken) {
var length = 0;
// should start with `u` or `U`
if (token === null || token.type !== IDENT$1 || !cmpChar$2(token.value, 0, U)) {
return 0;
}
token = getNextToken(++length);
if (token === null) {
return 0;
}
// u '+' <ident-token> '?'*
// u '+' '?'+
if (isDelim$1(token, PLUSSIGN$1)) {
token = getNextToken(++length);
if (token === null) {
return 0;
}
if (token.type === IDENT$1) {
// u '+' <ident-token> '?'*
return withQuestionMarkSequence(hexSequence(token, 0, true), ++length, getNextToken);
}
if (isDelim$1(token, QUESTIONMARK)) {
// u '+' '?'+
return withQuestionMarkSequence(1, ++length, getNextToken);
}
// Hex digit or question mark is expected
return 0;
}
// u <number-token> '?'*
// u <number-token> <dimension-token>
// u <number-token> <number-token>
if (token.type === NUMBER$1) {
if (!startsWith(token, PLUSSIGN$1)) {
return 0;
}
var consumedHexLength = hexSequence(token, 1, true);
if (consumedHexLength === 0) {
return 0;
}
token = getNextToken(++length);
if (token === null) {
// u <number-token> <eof>
return length;
}
if (token.type === DIMENSION$1 || token.type === NUMBER$1) {
// u <number-token> <dimension-token>
// u <number-token> <number-token>
if (!startsWith(token, HYPHENMINUS$2) || !hexSequence(token, 1, false)) {
return 0;
}
return length + 1;
}
// u <number-token> '?'*
return withQuestionMarkSequence(consumedHexLength, length, getNextToken);
}
// u <dimension-token> '?'*
if (token.type === DIMENSION$1) {
if (!startsWith(token, PLUSSIGN$1)) {
return 0;
}
return withQuestionMarkSequence(hexSequence(token, 1, true), ++length, getNextToken);
}
return 0;
};
var isIdentifierStart$2 = tokenizer.isIdentifierStart;
var isHexDigit$3 = tokenizer.isHexDigit;
var isDigit$3 = tokenizer.isDigit;
var cmpStr$3 = tokenizer.cmpStr;
var consumeNumber$2 = tokenizer.consumeNumber;
var TYPE$5 = tokenizer.TYPE;
var cssWideKeywords = ['unset', 'initial', 'inherit'];
var calcFunctionNames = ['calc(', '-moz-calc(', '-webkit-calc('];
// https://www.w3.org/TR/css-values-3/#lengths
var LENGTH = {
// absolute length units
'px': true,
'mm': true,
'cm': true,
'in': true,
'pt': true,
'pc': true,
'q': true,
// relative length units
'em': true,
'ex': true,
'ch': true,
'rem': true,
// viewport-percentage lengths
'vh': true,
'vw': true,
'vmin': true,
'vmax': true,
'vm': true
};
var ANGLE = {
'deg': true,
'grad': true,
'rad': true,
'turn': true
};
var TIME = {
's': true,
'ms': true
};
var FREQUENCY = {
'hz': true,
'khz': true
};
// https://www.w3.org/TR/css-values-3/#resolution (https://drafts.csswg.org/css-values/#resolution)
var RESOLUTION = {
'dpi': true,
'dpcm': true,
'dppx': true,
'x': true // https://github.com/w3c/csswg-drafts/issues/461
};
// https://drafts.csswg.org/css-grid/#fr-unit
var FLEX = {
'fr': true
};
// https://www.w3.org/TR/css3-speech/#mixing-props-voice-volume
var DECIBEL = {
'db': true
};
// https://www.w3.org/TR/css3-speech/#voice-props-voice-pitch
var SEMITONES = {
'st': true
};
// safe char code getter
function charCode(str, index) {
return index < str.length ? str.charCodeAt(index) : 0;
}
function eqStr(actual, expected) {
return cmpStr$3(actual, 0, actual.length, expected);
}
function eqStrAny(actual, expected) {
for (var i = 0; i < expected.length; i++) {
if (eqStr(actual, expected[i])) {
return true;
}
}
return false;
}
// IE postfix hack, i.e. 123\0 or 123px\9
function isPostfixIeHack(str, offset) {
if (offset !== str.length - 2) {
return false;
}
return (
str.charCodeAt(offset) === 0x005C && // U+005C REVERSE SOLIDUS (\)
isDigit$3(str.charCodeAt(offset + 1))
);
}
function outOfRange(opts, value, numEnd) {
if (opts && opts.type === 'Range') {
var num = Number(
numEnd !== undefined && numEnd !== value.length
? value.substr(0, numEnd)
: value
);
if (isNaN(num)) {
return true;
}
if (opts.min !== null && num < opts.min) {
return true;
}
if (opts.max !== null && num > opts.max) {
return true;
}
}
return false;
}
function consumeFunction(token, getNextToken) {
var startIdx = token.index;
var length = 0;
// balanced token consuming
do {
length++;
if (token.balance <= startIdx) {
break;
}
} while (token = getNextToken(length));
return length;
}
// TODO: implement
// can be used wherever <length>, <frequency>, <angle>, <time>, <percentage>, <number>, or <integer> values are allowed
// https://drafts.csswg.org/css-values/#calc-notation
function calc(next) {
return function(token, getNextToken, opts) {
if (token === null) {
return 0;
}
if (token.type === TYPE$5.Function && eqStrAny(token.value, calcFunctionNames)) {
return consumeFunction(token, getNextToken);
}
return next(token, getNextToken, opts);
};
}
function tokenType(expectedTokenType) {
return function(token) {
if (token === null || token.type !== expectedTokenType) {
return 0;
}
return 1;
};
}
function func(name) {
name = name + '(';
return function(token, getNextToken) {
if (token !== null && eqStr(token.value, name)) {
return consumeFunction(token, getNextToken);
}
return 0;
};
}
// =========================
// Complex types
//
// https://drafts.csswg.org/css-values-4/#custom-idents
// 4.2. Author-defined Identifiers: the <custom-ident> type
// Some properties accept arbitrary author-defined identifiers as a component value.
// This generic data type is denoted by <custom-ident>, and represents any valid CSS identifier
// that would not be misinterpreted as a pre-defined keyword in that property’s value definition.
//
// See also: https://developer.mozilla.org/en-US/docs/Web/CSS/custom-ident
function customIdent(token) {
if (token === null || token.type !== TYPE$5.Ident) {
return 0;
}
var name = token.value.toLowerCase();
// The CSS-wide keywords are not valid <custom-ident>s
if (eqStrAny(name, cssWideKeywords)) {
return 0;
}
// The default keyword is reserved and is also not a valid <custom-ident>
if (eqStr(name, 'default')) {
return 0;
}
// TODO: ignore property specific keywords (as described https://developer.mozilla.org/en-US/docs/Web/CSS/custom-ident)
// Specifications using <custom-ident> must specify clearly what other keywords
// are excluded from <custom-ident>, if any—for example by saying that any pre-defined keywords
// in that property’s value definition are excluded. Excluded keywords are excluded
// in all ASCII case permutations.
return 1;
}
// https://drafts.csswg.org/css-variables/#typedef-custom-property-name
// A custom property is any property whose name starts with two dashes (U+002D HYPHEN-MINUS), like --foo.
// The <custom-property-name> production corresponds to this: it’s defined as any valid identifier
// that starts with two dashes, except -- itself, which is reserved for future use by CSS.
// NOTE: Current implementation treat `--` as a valid name since most (all?) major browsers treat it as valid.
function customPropertyName(token) {
// ... defined as any valid identifier
if (token === null || token.type !== TYPE$5.Ident) {
return 0;
}
// ... that starts with two dashes (U+002D HYPHEN-MINUS)
if (charCode(token.value, 0) !== 0x002D || charCode(token.value, 1) !== 0x002D) {
return 0;
}
return 1;
}
// https://drafts.csswg.org/css-color-4/#hex-notation
// The syntax of a <hex-color> is a <hash-token> token whose value consists of 3, 4, 6, or 8 hexadecimal digits.
// In other words, a hex color is written as a hash character, "#", followed by some number of digits 0-9 or
// letters a-f (the case of the letters doesn’t matter - #00ff00 is identical to #00FF00).
function hexColor(token) {
if (token === null || token.type !== TYPE$5.Hash) {
return 0;
}
var length = token.value.length;
// valid values (length): #rgb (4), #rgba (5), #rrggbb (7), #rrggbbaa (9)
if (length !== 4 && length !== 5 && length !== 7 && length !== 9) {
return 0;
}
for (var i = 1; i < length; i++) {
if (!isHexDigit$3(token.value.charCodeAt(i))) {
return 0;
}
}
return 1;
}
function idSelector(token) {
if (token === null || token.type !== TYPE$5.Hash) {
return 0;
}
if (!isIdentifierStart$2(charCode(token.value, 1), charCode(token.value, 2), charCode(token.value, 3))) {
return 0;
}
return 1;
}
// https://drafts.csswg.org/css-syntax/#any-value
// It represents the entirety of what a valid declaration can have as its value.
function declarationValue(token, getNextToken) {
if (!token) {
return 0;
}
var length = 0;
var level = 0;
var startIdx = token.index;
// The <declaration-value> production matches any sequence of one or more tokens,
// so long as the sequence ...
scan:
do {
switch (token.type) {
// ... does not contain <bad-string-token>, <bad-url-token>,
case TYPE$5.BadString:
case TYPE$5.BadUrl:
break scan;
// ... unmatched <)-token>, <]-token>, or <}-token>,
case TYPE$5.RightCurlyBracket:
case TYPE$5.RightParenthesis:
case TYPE$5.RightSquareBracket:
if (token.balance > token.index || token.balance < startIdx) {
break scan;
}
level--;
break;
// ... or top-level <semicolon-token> tokens
case TYPE$5.Semicolon:
if (level === 0) {
break scan;
}
break;
// ... or <delim-token> tokens with a value of "!"
case TYPE$5.Delim:
if (token.value === '!' && level === 0) {
break scan;
}
break;
case TYPE$5.Function:
case TYPE$5.LeftParenthesis:
case TYPE$5.LeftSquareBracket:
case TYPE$5.LeftCurlyBracket:
level++;
break;
}
length++;
// until balance closing
if (token.balance <= startIdx) {
break;
}
} while (token = getNextToken(length));
return length;
}
// https://drafts.csswg.org/css-syntax/#any-value
// The <any-value> production is identical to <declaration-value>, but also
// allows top-level <semicolon-token> tokens and <delim-token> tokens
// with a value of "!". It represents the entirety of what valid CSS can be in any context.
function anyValue(token, getNextToken) {
if (!token) {
return 0;
}
var startIdx = token.index;
var length = 0;
// The <any-value> production matches any sequence of one or more tokens,
// so long as the sequence ...
scan:
do {
switch (token.type) {
// ... does not contain <bad-string-token>, <bad-url-token>,
case TYPE$5.BadString:
case TYPE$5.BadUrl:
break scan;
// ... unmatched <)-token>, <]-token>, or <}-token>,
case TYPE$5.RightCurlyBracket:
case TYPE$5.RightParenthesis:
case TYPE$5.RightSquareBracket:
if (token.balance > token.index || token.balance < startIdx) {
break scan;
}
break;
}
length++;
// until balance closing
if (token.balance <= startIdx) {
break;
}
} while (token = getNextToken(length));
return length;
}
// =========================
// Dimensions
//
function dimension(type) {
return function(token, getNextToken, opts) {
if (token === null || token.type !== TYPE$5.Dimension) {
return 0;
}
var numberEnd = consumeNumber$2(token.value, 0);
// check unit
if (type !== null) {
// check for IE postfix hack, i.e. 123px\0 or 123px\9
var reverseSolidusOffset = token.value.indexOf('\\', numberEnd);
var unit = reverseSolidusOffset === -1 || !isPostfixIeHack(token.value, reverseSolidusOffset)
? token.value.substr(numberEnd)
: token.value.substring(numberEnd, reverseSolidusOffset);
if (type.hasOwnProperty(unit.toLowerCase()) === false) {
return 0;
}
}
// check range if specified
if (outOfRange(opts, token.value, numberEnd)) {
return 0;
}
return 1;
};
}
// =========================
// Percentage
//
// §5.5. Percentages: the <percentage> type
// https://drafts.csswg.org/css-values-4/#percentages
function percentage(token, getNextToken, opts) {
// ... corresponds to the <percentage-token> production
if (token === null || token.type !== TYPE$5.Percentage) {
return 0;
}
// check range if specified
if (outOfRange(opts, token.value, token.value.length - 1)) {
return 0;
}
return 1;
}
// =========================
// Numeric
//
// https://drafts.csswg.org/css-values-4/#numbers
// The value <zero> represents a literal number with the value 0. Expressions that merely
// evaluate to a <number> with the value 0 (for example, calc(0)) do not match <zero>;
// only literal <number-token>s do.
function zero(next) {
if (typeof next !== 'function') {
next = function() {
return 0;
};
}
return function(token, getNextToken, opts) {
if (token !== null && token.type === TYPE$5.Number) {
if (Number(token.value) === 0) {
return 1;
}
}
return next(token, getNextToken, opts);
};
}
// § 5.3. Real Numbers: the <number> type
// https://drafts.csswg.org/css-values-4/#numbers
// Number values are denoted by <number>, and represent real numbers, possibly with a fractional component.
// ... It corresponds to the <number-token> production
function number(token, getNextToken, opts) {
if (token === null) {
return 0;
}
var numberEnd = consumeNumber$2(token.value, 0);
var isNumber = numberEnd === token.value.length;
if (!isNumber && !isPostfixIeHack(token.value, numberEnd)) {
return 0;
}
// check range if specified
if (outOfRange(opts, token.value, numberEnd)) {
return 0;
}
return 1;
}
// §5.2. Integers: the <integer> type
// https://drafts.csswg.org/css-values-4/#integers
function integer(token, getNextToken, opts) {
// ... corresponds to a subset of the <number-token> production
if (token === null || token.type !== TYPE$5.Number) {
return 0;
}
// The first digit of an integer may be immediately preceded by `-` or `+` to indicate the integer’s sign.
var i = token.value.charCodeAt(0) === 0x002B || // U+002B PLUS SIGN (+)
token.value.charCodeAt(0) === 0x002D ? 1 : 0; // U+002D HYPHEN-MINUS (-)
// When written literally, an integer is one or more decimal digits 0 through 9 ...
for (; i < token.value.length; i++) {
if (!isDigit$3(token.value.charCodeAt(i))) {
return 0;
}
}
// check range if specified
if (outOfRange(opts, token.value, i)) {
return 0;
}
return 1;
}
var generic = {
// token types
'ident-token': tokenType(TYPE$5.Ident),
'function-token': tokenType(TYPE$5.Function),
'at-keyword-token': tokenType(TYPE$5.AtKeyword),
'hash-token': tokenType(TYPE$5.Hash),
'string-token': tokenType(TYPE$5.String),
'bad-string-token': tokenType(TYPE$5.BadString),
'url-token': tokenType(TYPE$5.Url),
'bad-url-token': tokenType(TYPE$5.BadUrl),
'delim-token': tokenType(TYPE$5.Delim),
'number-token': tokenType(TYPE$5.Number),
'percentage-token': tokenType(TYPE$5.Percentage),
'dimension-token': tokenType(TYPE$5.Dimension),
'whitespace-token': tokenType(TYPE$5.WhiteSpace),
'CDO-token': tokenType(TYPE$5.CDO),
'CDC-token': tokenType(TYPE$5.CDC),
'colon-token': tokenType(TYPE$5.Colon),
'semicolon-token': tokenType(TYPE$5.Semicolon),
'comma-token': tokenType(TYPE$5.Comma),
'[-token': tokenType(TYPE$5.LeftSquareBracket),
']-token': tokenType(TYPE$5.RightSquareBracket),
'(-token': tokenType(TYPE$5.LeftParenthesis),
')-token': tokenType(TYPE$5.RightParenthesis),
'{-token': tokenType(TYPE$5.LeftCurlyBracket),
'}-token': tokenType(TYPE$5.RightCurlyBracket),
// token type aliases
'string': tokenType(TYPE$5.String),
'ident': tokenType(TYPE$5.Ident),
// complex types
'custom-ident': customIdent,
'custom-property-name': customPropertyName,
'hex-color': hexColor,
'id-selector': idSelector, // element( <id-selector> )
'an-plus-b': genericAnPlusB,
'urange': genericUrange,
'declaration-value': declarationValue,
'any-value': anyValue,
// dimensions
'dimension': calc(dimension(null)),
'angle': calc(dimension(ANGLE)),
'decibel': calc(dimension(DECIBEL)),
'frequency': calc(dimension(FREQUENCY)),
'flex': calc(dimension(FLEX)),
'length': calc(zero(dimension(LENGTH))),
'resolution': calc(dimension(RESOLUTION)),
'semitones': calc(dimension(SEMITONES)),
'time': calc(dimension(TIME)),
// percentage
'percentage': calc(percentage),
// numeric
'zero': zero(),
'number': calc(number),
'integer': calc(integer),
// old IE stuff
'-ms-legacy-expression': func('expression')
};
var _SyntaxError$1 = function SyntaxError(message, input, offset) {
var error = createCustomError('SyntaxError', message);
error.input = input;
error.offset = offset;
error.rawMessage = message;
error.message = error.rawMessage + '\n' +
' ' + error.input + '\n' +
'--' + new Array((error.offset || error.input.length) + 1).join('-') + '^';
return error;
};
var TAB = 9;
var N$1 = 10;
var F = 12;
var R = 13;
var SPACE = 32;
var Tokenizer = function(str) {
this.str = str;
this.pos = 0;
};
Tokenizer.prototype = {
charCodeAt: function(pos) {
return pos < this.str.length ? this.str.charCodeAt(pos) : 0;
},
charCode: function() {
return this.charCodeAt(this.pos);
},
nextCharCode: function() {
return this.charCodeAt(this.pos + 1);
},
nextNonWsCode: function(pos) {
return this.charCodeAt(this.findWsEnd(pos));
},
findWsEnd: function(pos) {
for (; pos < this.str.length; pos++) {
var code = this.str.charCodeAt(pos);
if (code !== R && code !== N$1 && code !== F && code !== SPACE && code !== TAB) {
break;
}
}
return pos;
},
substringToPos: function(end) {
return this.str.substring(this.pos, this.pos = end);
},
eat: function(code) {
if (this.charCode() !== code) {
this.error('Expect `' + String.fromCharCode(code) + '`');
}
this.pos++;
},
peek: function() {
return this.pos < this.str.length ? this.str.charAt(this.pos++) : '';
},
error: function(message) {
throw new _SyntaxError$1(message, this.str, this.pos);
}
};
var tokenizer$1 = Tokenizer;
var TAB$1 = 9;
var N$2 = 10;
var F$1 = 12;
var R$1 = 13;
var SPACE$1 = 32;
var EXCLAMATIONMARK = 33; // !
var NUMBERSIGN = 35; // #
var AMPERSAND = 38; // &
var APOSTROPHE = 39; // '
var LEFTPARENTHESIS = 40; // (
var RIGHTPARENTHESIS = 41; // )
var ASTERISK = 42; // *
var PLUSSIGN$2 = 43; // +
var COMMA = 44; // ,
var HYPERMINUS = 45; // -
var LESSTHANSIGN = 60; // <
var GREATERTHANSIGN = 62; // >
var QUESTIONMARK$1 = 63; // ?
var COMMERCIALAT = 64; // @
var LEFTSQUAREBRACKET = 91; // [
var RIGHTSQUAREBRACKET = 93; // ]
var LEFTCURLYBRACKET = 123; // {
var VERTICALLINE = 124; // |
var RIGHTCURLYBRACKET = 125; // }
var INFINITY = 8734; // ∞
var NAME_CHAR = createCharMap(function(ch) {
return /[a-zA-Z0-9\-]/.test(ch);
});
var COMBINATOR_PRECEDENCE = {
' ': 1,
'&&': 2,
'||': 3,
'|': 4
};
function createCharMap(fn) {
var array = typeof Uint32Array === 'function' ? new Uint32Array(128) : new Array(128);
for (var i = 0; i < 128; i++) {
array[i] = fn(String.fromCharCode(i)) ? 1 : 0;
}
return array;
}
function scanSpaces(tokenizer) {
return tokenizer.substringToPos(
tokenizer.findWsEnd(tokenizer.pos)
);
}
function scanWord(tokenizer) {
var end = tokenizer.pos;
for (; end < tokenizer.str.length; end++) {
var code = tokenizer.str.charCodeAt(end);
if (code >= 128 || NAME_CHAR[code] === 0) {
break;
}
}
if (tokenizer.pos === end) {
tokenizer.error('Expect a keyword');
}
return tokenizer.substringToPos(end);
}
function scanNumber(tokenizer) {
var end = tokenizer.pos;
for (; end < tokenizer.str.length; end++) {
var code = tokenizer.str.charCodeAt(end);
if (code < 48 || code > 57) {
break;
}
}
if (tokenizer.pos === end) {
tokenizer.error('Expect a number');
}
return tokenizer.substringToPos(end);
}
function scanString(tokenizer) {
var end = tokenizer.str.indexOf('\'', tokenizer.pos + 1);
if (end === -1) {
tokenizer.pos = tokenizer.str.length;
tokenizer.error('Expect an apostrophe');
}
return tokenizer.substringToPos(end + 1);
}
function readMultiplierRange(tokenizer) {
var min = null;
var max = null;
tokenizer.eat(LEFTCURLYBRACKET);
min = scanNumber(tokenizer);
if (tokenizer.charCode() === COMMA) {
tokenizer.pos++;
if (tokenizer.charCode() !== RIGHTCURLYBRACKET) {
max = scanNumber(tokenizer);
}
} else {
max = min;
}
tokenizer.eat(RIGHTCURLYBRACKET);
return {
min: Number(min),
max: max ? Number(max) : 0
};
}
function readMultiplier(tokenizer) {
var range = null;
var comma = false;
switch (tokenizer.charCode()) {
case ASTERISK:
tokenizer.pos++;
range = {
min: 0,
max: 0
};
break;
case PLUSSIGN$2:
tokenizer.pos++;
range = {
min: 1,
max: 0
};
break;
case QUESTIONMARK$1:
tokenizer.pos++;
range = {
min: 0,
max: 1
};
break;
case NUMBERSIGN:
tokenizer.pos++;
comma = true;
if (tokenizer.charCode() === LEFTCURLYBRACKET) {
range = readMultiplierRange(tokenizer);
} else {
range = {
min: 1,
max: 0
};
}
break;
case LEFTCURLYBRACKET:
range = readMultiplierRange(tokenizer);
break;
default:
return null;
}
return {
type: 'Multiplier',
comma: comma,
min: range.min,
max: range.max,
term: null
};
}
function maybeMultiplied(tokenizer, node) {
var multiplier = readMultiplier(tokenizer);
if (multiplier !== null) {
multiplier.term = node;
return multiplier;
}
return node;
}
function maybeToken(tokenizer) {
var ch = tokenizer.peek();
if (ch === '') {
return null;
}
return {
type: 'Token',
value: ch
};
}
function readProperty(tokenizer) {
var name;
tokenizer.eat(LESSTHANSIGN);
tokenizer.eat(APOSTROPHE);
name = scanWord(tokenizer);
tokenizer.eat(APOSTROPHE);
tokenizer.eat(GREATERTHANSIGN);
return maybeMultiplied(tokenizer, {
type: 'Property',
name: name
});
}
// https://drafts.csswg.org/css-values-3/#numeric-ranges
// 4.1. Range Restrictions and Range Definition Notation
//
// Range restrictions can be annotated in the numeric type notation using CSS bracketed
// range notation—[min,max]—within the angle brackets, after the identifying keyword,
// indicating a closed range between (and including) min and max.
// For example, <integer [0, 10]> indicates an integer between 0 and 10, inclusive.
function readTypeRange(tokenizer) {
// use null for Infinity to make AST format JSON serializable/deserializable
var min = null; // -Infinity
var max = null; // Infinity
var sign = 1;
tokenizer.eat(LEFTSQUAREBRACKET);
if (tokenizer.charCode() === HYPERMINUS) {
tokenizer.peek();
sign = -1;
}
if (sign == -1 && tokenizer.charCode() === INFINITY) {
tokenizer.peek();
} else {
min = sign * Number(scanNumber(tokenizer));
}
scanSpaces(tokenizer);
tokenizer.eat(COMMA);
scanSpaces(tokenizer);
if (tokenizer.charCode() === INFINITY) {
tokenizer.peek();
} else {
sign = 1;
if (tokenizer.charCode() === HYPERMINUS) {
tokenizer.peek();
sign = -1;
}
max = sign * Number(scanNumber(tokenizer));
}
tokenizer.eat(RIGHTSQUAREBRACKET);
// If no range is indicated, either by using the bracketed range notation
// or in the property description, then [−∞,∞] is assumed.
if (min === null && max === null) {
return null;
}
return {
type: 'Range',
min: min,
max: max
};
}
function readType(tokenizer) {
var name;
var opts = null;
tokenizer.eat(LESSTHANSIGN);
name = scanWord(tokenizer);
if (tokenizer.charCode() === LEFTPARENTHESIS &&
tokenizer.nextCharCode() === RIGHTPARENTHESIS) {
tokenizer.pos += 2;
name += '()';
}
if (tokenizer.charCodeAt(tokenizer.findWsEnd(tokenizer.pos)) === LEFTSQUAREBRACKET) {
scanSpaces(tokenizer);
opts = readTypeRange(tokenizer);
}
tokenizer.eat(GREATERTHANSIGN);
return maybeMultiplied(tokenizer, {
type: 'Type',
name: name,
opts: opts
});
}
function readKeywordOrFunction(tokenizer) {
var name;
name = scanWord(tokenizer);
if (tokenizer.charCode() === LEFTPARENTHESIS) {
tokenizer.pos++;
return {
type: 'Function',
name: name
};
}
return maybeMultiplied(tokenizer, {
type: 'Keyword',
name: name
});
}
function regroupTerms(terms, combinators) {
function createGroup(terms, combinator) {
return {
type: 'Group',
terms: terms,
combinator: combinator,
disallowEmpty: false,
explicit: false
};
}
combinators = Object.keys(combinators).sort(function(a, b) {
return COMBINATOR_PRECEDENCE[a] - COMBINATOR_PRECEDENCE[b];
});
while (combinators.length > 0) {
var combinator = combinators.shift();
for (var i = 0, subgroupStart = 0; i < terms.length; i++) {
var term = terms[i];
if (term.type === 'Combinator') {
if (term.value === combinator) {
if (subgroupStart === -1) {
subgroupStart = i - 1;
}
terms.splice(i, 1);
i--;
} else {
if (subgroupStart !== -1 && i - subgroupStart > 1) {
terms.splice(
subgroupStart,
i - subgroupStart,
createGroup(terms.slice(subgroupStart, i), combinator)
);
i = subgroupStart + 1;
}
subgroupStart = -1;
}
}
}
if (subgroupStart !== -1 && combinators.length) {
terms.splice(
subgroupStart,
i - subgroupStart,
createGroup(terms.slice(subgroupStart, i), combinator)
);
}
}
return combinator;
}
function readImplicitGroup(tokenizer) {
var terms = [];
var combinators = {};
var token;
var prevToken = null;
var prevTokenPos = tokenizer.pos;
while (token = peek(tokenizer)) {
if (token.type !== 'Spaces') {
if (token.type === 'Combinator') {
// check for combinator in group beginning and double combinator sequence
if (prevToken === null || prevToken.type === 'Combinator') {
tokenizer.pos = prevTokenPos;
tokenizer.error('Unexpected combinator');
}
combinators[token.value] = true;
} else if (prevToken !== null && prevToken.type !== 'Combinator') {
combinators[' '] = true; // a b
terms.push({
type: 'Combinator',
value: ' '
});
}
terms.push(token);
prevToken = token;
prevTokenPos = tokenizer.pos;
}
}
// check for combinator in group ending
if (prevToken !== null && prevToken.type === 'Combinator') {
tokenizer.pos -= prevTokenPos;
tokenizer.error('Unexpected combinator');
}
return {
type: 'Group',
terms: terms,
combinator: regroupTerms(terms, combinators) || ' ',
disallowEmpty: false,
explicit: false
};
}
function readGroup(tokenizer) {
var result;
tokenizer.eat(LEFTSQUAREBRACKET);
result = readImplicitGroup(tokenizer);
tokenizer.eat(RIGHTSQUAREBRACKET);
result.explicit = true;
if (tokenizer.charCode() === EXCLAMATIONMARK) {
tokenizer.pos++;
result.disallowEmpty = true;
}
return result;
}
function peek(tokenizer) {
var code = tokenizer.charCode();
if (code < 128 && NAME_CHAR[code] === 1) {
return readKeywordOrFunction(tokenizer);
}
switch (code) {
case RIGHTSQUAREBRACKET:
// don't eat, stop scan a group
break;
case LEFTSQUAREBRACKET:
return maybeMultiplied(tokenizer, readGroup(tokenizer));
case LESSTHANSIGN:
return tokenizer.nextCharCode() === APOSTROPHE
? readProperty(tokenizer)
: readType(tokenizer);
case VERTICALLINE:
return {
type: 'Combinator',
value: tokenizer.substringToPos(
tokenizer.nextCharCode() === VERTICALLINE
? tokenizer.pos + 2
: tokenizer.pos + 1
)
};
case AMPERSAND:
tokenizer.pos++;
tokenizer.eat(AMPERSAND);
return {
type: 'Combinator',
value: '&&'
};
case COMMA:
tokenizer.pos++;
return {
type: 'Comma'
};
case APOSTROPHE:
return maybeMultiplied(tokenizer, {
type: 'String',
value: scanString(tokenizer)
});
case SPACE$1:
case TAB$1:
case N$2:
case R$1:
case F$1:
return {
type: 'Spaces',
value: scanSpaces(tokenizer)
};
case COMMERCIALAT:
code = tokenizer.nextCharCode();
if (code < 128 && NAME_CHAR[code] === 1) {
tokenizer.pos++;
return {
type: 'AtKeyword',
name: scanWord(tokenizer)
};
}
return maybeToken(tokenizer);
case ASTERISK:
case PLUSSIGN$2:
case QUESTIONMARK$1:
case NUMBERSIGN:
case EXCLAMATIONMARK:
// prohibited tokens (used as a multiplier start)
break;
case LEFTCURLYBRACKET:
// LEFTCURLYBRACKET is allowed since mdn/data uses it w/o quoting
// check next char isn't a number, because it's likely a disjoined multiplier
code = tokenizer.nextCharCode();
if (code < 48 || code > 57) {
return maybeToken(tokenizer);
}
break;
default:
return maybeToken(tokenizer);
}
}
function parse(source) {
var tokenizer = new tokenizer$1(source);
var result = readImplicitGroup(tokenizer);
if (tokenizer.pos !== source.length) {
tokenizer.error('Unexpected input');
}
// reduce redundant groups with single group term
if (result.terms.length === 1 && result.terms[0].type === 'Group') {
result = result.terms[0];
}
return result;
}
// warm up parse to elimitate code branches that never execute
// fix soft deoptimizations (insufficient type feedback)
parse('[a&&<b>#|<\'c\'>*||e() f{2} /,(% g#{1,2} h{2,})]!');
var parse_1 = parse;
var noop$1 = function() {};
function ensureFunction(value) {
return typeof value === 'function' ? value : noop$1;
}
var walk = function(node, options, context) {
function walk(node) {
enter.call(context, node);
switch (node.type) {
case 'Group':
node.terms.forEach(walk);
break;
case 'Multiplier':
walk(node.term);
break;
case 'Type':
case 'Property':
case 'Keyword':
case 'AtKeyword':
case 'Function':
case 'String':
case 'Token':
case 'Comma':
break;
default:
throw new Error('Unknown type: ' + node.type);
}
leave.call(context, node);
}
var enter = noop$1;
var leave = noop$1;
if (typeof options === 'function') {
enter = options;
} else if (options) {
enter = ensureFunction(options.enter);
leave = ensureFunction(options.leave);
}
if (enter === noop$1 && leave === noop$1) {
throw new Error('Neither `enter` nor `leave` walker handler is set or both aren\'t a function');
}
walk(node);
};
var tokenStream = new TokenStream_1();
var astToTokens = {
decorator: function(handlers) {
var curNode = null;
var prev = { len: 0, node: null };
var nodes = [prev];
var buffer = '';
return {
children: handlers.children,
node: function(node) {
var tmp = curNode;
curNode = node;
handlers.node.call(this, node);
curNode = tmp;
},
chunk: function(chunk) {
buffer += chunk;
if (prev.node !== curNode) {
nodes.push({
len: chunk.length,
node: curNode
});
} else {
prev.len += chunk.length;
}
},
result: function() {
return prepareTokens(buffer, nodes);
}
};
}
};
function prepareTokens(str, nodes) {
var tokens = [];
var nodesOffset = 0;
var nodesIndex = 0;
var currentNode = nodes ? nodes[nodesIndex].node : null;
tokenizer(str, tokenStream);
while (!tokenStream.eof) {
if (nodes) {
while (nodesIndex < nodes.length && nodesOffset + nodes[nodesIndex].len <= tokenStream.tokenStart) {
nodesOffset += nodes[nodesIndex++].len;
currentNode = nodes[nodesIndex].node;
}
}
tokens.push({
type: tokenStream.tokenType,
value: tokenStream.getTokenValue(),
index: tokenStream.tokenIndex, // TODO: remove it, temporary solution
balance: tokenStream.balance[tokenStream.tokenIndex], // TODO: remove it, temporary solution
node: currentNode
});
tokenStream.next();
// console.log({ ...tokens[tokens.length - 1], node: undefined });
}
return tokens;
}
var prepareTokens_1 = function(value, syntax) {
if (typeof value === 'string') {
return prepareTokens(value, null);
}
return syntax.generate(value, astToTokens);
};
var MATCH = { type: 'Match' };
var MISMATCH = { type: 'Mismatch' };
var DISALLOW_EMPTY = { type: 'DisallowEmpty' };
var LEFTPARENTHESIS$1 = 40; // (
var RIGHTPARENTHESIS$1 = 41; // )
function createCondition(match, thenBranch, elseBranch) {
// reduce node count
if (thenBranch === MATCH && elseBranch === MISMATCH) {
return match;
}
if (match === MATCH && thenBranch === MATCH && elseBranch === MATCH) {
return match;
}
if (match.type === 'If' && match.else === MISMATCH && thenBranch === MATCH) {
thenBranch = match.then;
match = match.match;
}
return {
type: 'If',
match: match,
then: thenBranch,
else: elseBranch
};
}
function isFunctionType(name) {
return (
name.length > 2 &&
name.charCodeAt(name.length - 2) === LEFTPARENTHESIS$1 &&
name.charCodeAt(name.length - 1) === RIGHTPARENTHESIS$1
);
}
function isEnumCapatible(term) {
return (
term.type === 'Keyword' ||
term.type === 'AtKeyword' ||
term.type === 'Function' ||
term.type === 'Type' && isFunctionType(term.name)
);
}
function buildGroupMatchGraph(combinator, terms, atLeastOneTermMatched) {
switch (combinator) {
case ' ':
// Juxtaposing components means that all of them must occur, in the given order.
//
// a b c
// =
// match a
// then match b
// then match c
// then MATCH
// else MISMATCH
// else MISMATCH
// else MISMATCH
var result = MATCH;
for (var i = terms.length - 1; i >= 0; i--) {
var term = terms[i];
result = createCondition(
term,
result,
MISMATCH
);
}
return result;
case '|':
// A bar (|) separates two or more alternatives: exactly one of them must occur.
//
// a | b | c
// =
// match a
// then MATCH
// else match b
// then MATCH
// else match c
// then MATCH
// else MISMATCH
var result = MISMATCH;
var map = null;
for (var i = terms.length - 1; i >= 0; i--) {
var term = terms[i];
// reduce sequence of keywords into a Enum
if (isEnumCapatible(term)) {
if (map === null && i > 0 && isEnumCapatible(terms[i - 1])) {
map = Object.create(null);
result = createCondition(
{
type: 'Enum',
map: map
},
MATCH,
result
);
}
if (map !== null) {
var key = (isFunctionType(term.name) ? term.name.slice(0, -1) : term.name).toLowerCase();
if (key in map === false) {
map[key] = term;
continue;
}
}
}
map = null;
// create a new conditonal node
result = createCondition(
term,
MATCH,
result
);
}
return result;
case '&&':
// A double ampersand (&&) separates two or more components,
// all of which must occur, in any order.
// Use MatchOnce for groups with a large number of terms,
// since &&-groups produces at least N!-node trees
if (terms.length > 5) {
return {
type: 'MatchOnce',
terms: terms,
all: true
};
}
// Use a combination tree for groups with small number of terms
//
// a && b && c
// =
// match a
// then [b && c]
// else match b
// then [a && c]
// else match c
// then [a && b]
// else MISMATCH
//
// a && b
// =
// match a
// then match b
// then MATCH
// else MISMATCH
// else match b
// then match a
// then MATCH
// else MISMATCH
// else MISMATCH
var result = MISMATCH;
for (var i = terms.length - 1; i >= 0; i--) {
var term = terms[i];
var thenClause;
if (terms.length > 1) {
thenClause = buildGroupMatchGraph(
combinator,
terms.filter(function(newGroupTerm) {
return newGroupTerm !== term;
}),
false
);
} else {
thenClause = MATCH;
}
result = createCondition(
term,
thenClause,
result
);
}
return result;
case '||':
// A double bar (||) separates two or more options:
// one or more of them must occur, in any order.
// Use MatchOnce for groups with a large number of terms,
// since ||-groups produces at least N!-node trees
if (terms.length > 5) {
return {
type: 'MatchOnce',
terms: terms,
all: false
};
}
// Use a combination tree for groups with small number of terms
//
// a || b || c
// =
// match a
// then [b || c]
// else match b
// then [a || c]
// else match c
// then [a || b]
// else MISMATCH
//
// a || b
// =
// match a
// then match b
// then MATCH
// else MATCH
// else match b
// then match a
// then MATCH
// else MATCH
// else MISMATCH
var result = atLeastOneTermMatched ? MATCH : MISMATCH;
for (var i = terms.length - 1; i >= 0; i--) {
var term = terms[i];
var thenClause;
if (terms.length > 1) {
thenClause = buildGroupMatchGraph(
combinator,
terms.filter(function(newGroupTerm) {
return newGroupTerm !== term;
}),
true
);
} else {
thenClause = MATCH;
}
result = createCondition(
term,
thenClause,
result
);
}
return result;
}
}
function buildMultiplierMatchGraph(node) {
var result = MATCH;
var matchTerm = buildMatchGraph(node.term);
if (node.max === 0) {
// disable repeating of empty match to prevent infinite loop
matchTerm = createCondition(
matchTerm,
DISALLOW_EMPTY,
MISMATCH
);
// an occurrence count is not limited, make a cycle;
// to collect more terms on each following matching mismatch
result = createCondition(
matchTerm,
null, // will be a loop
MISMATCH
);
result.then = createCondition(
MATCH,
MATCH,
result // make a loop
);
if (node.comma) {
result.then.else = createCondition(
{ type: 'Comma', syntax: node },
result,
MISMATCH
);
}
} else {
// create a match node chain for [min .. max] interval with optional matches
for (var i = node.min || 1; i <= node.max; i++) {
if (node.comma && result !== MATCH) {
result = createCondition(
{ type: 'Comma', syntax: node },
result,
MISMATCH
);
}
result = createCondition(
matchTerm,
createCondition(
MATCH,
MATCH,
result
),
MISMATCH
);
}
}
if (node.min === 0) {
// allow zero match
result = createCondition(
MATCH,
MATCH,
result
);
} else {
// create a match node chain to collect [0 ... min - 1] required matches
for (var i = 0; i < node.min - 1; i++) {
if (node.comma && result !== MATCH) {
result = createCondition(
{ type: 'Comma', syntax: node },
result,
MISMATCH
);
}
result = createCondition(
matchTerm,
result,
MISMATCH
);
}
}
return result;
}
function buildMatchGraph(node) {
if (typeof node === 'function') {
return {
type: 'Generic',
fn: node
};
}
switch (node.type) {
case 'Group':
var result = buildGroupMatchGraph(
node.combinator,
node.terms.map(buildMatchGraph),
false
);
if (node.disallowEmpty) {
result = createCondition(
result,
DISALLOW_EMPTY,
MISMATCH
);
}
return result;
case 'Multiplier':
return buildMultiplierMatchGraph(node);
case 'Type':
case 'Property':
return {
type: node.type,
name: node.name,
syntax: node
};
case 'Keyword':
return {
type: node.type,
name: node.name.toLowerCase(),
syntax: node
};
case 'AtKeyword':
return {
type: node.type,
name: '@' + node.name.toLowerCase(),
syntax: node
};
case 'Function':
return {
type: node.type,
name: node.name.toLowerCase() + '(',
syntax: node
};
case 'String':
// convert a one char length String to a Token
if (node.value.length === 3) {
return {
type: 'Token',
value: node.value.charAt(1),
syntax: node
};
}
// otherwise use it as is
return {
type: node.type,
value: node.value.substr(1, node.value.length - 2).replace(/\\'/g, '\''),
syntax: node
};
case 'Token':
return {
type: node.type,
value: node.value,
syntax: node
};
case 'Comma':
return {
type: node.type,
syntax: node
};
default:
throw new Error('Unknown node type:', node.type);
}
}
var matchGraph = {
MATCH: MATCH,
MISMATCH: MISMATCH,
DISALLOW_EMPTY: DISALLOW_EMPTY,
buildMatchGraph: function(syntaxTree, ref) {
if (typeof syntaxTree === 'string') {
syntaxTree = parse_1(syntaxTree);
}
return {
type: 'MatchGraph',
match: buildMatchGraph(syntaxTree),
syntax: ref || null,
source: syntaxTree
};
}
};
var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
var MATCH$1 = matchGraph.MATCH;
var MISMATCH$1 = matchGraph.MISMATCH;
var DISALLOW_EMPTY$1 = matchGraph.DISALLOW_EMPTY;
var TYPE$6 = _const.TYPE;
var STUB = 0;
var TOKEN = 1;
var OPEN_SYNTAX = 2;
var CLOSE_SYNTAX = 3;
var EXIT_REASON_MATCH = 'Match';
var EXIT_REASON_MISMATCH = 'Mismatch';
var EXIT_REASON_ITERATION_LIMIT = 'Maximum iteration number exceeded (please fill an issue on https://github.com/csstree/csstree/issues)';
var ITERATION_LIMIT = 15000;
var totalIterationCount = 0;
function reverseList(list) {
var prev = null;
var next = null;
var item = list;
while (item !== null) {
next = item.prev;
item.prev = prev;
prev = item;
item = next;
}
return prev;
}
function areStringsEqualCaseInsensitive(testStr, referenceStr) {
if (testStr.length !== referenceStr.length) {
return false;
}
for (var i = 0; i < testStr.length; i++) {
var testCode = testStr.charCodeAt(i);
var referenceCode = referenceStr.charCodeAt(i);
// testCode.toLowerCase() for U+0041 LATIN CAPITAL LETTER A (A) .. U+005A LATIN CAPITAL LETTER Z (Z).
if (testCode >= 0x0041 && testCode <= 0x005A) {
testCode = testCode | 32;
}
if (testCode !== referenceCode) {
return false;
}
}
return true;
}
function isCommaContextStart(token) {
if (token === null) {
return true;
}
return (
token.type === TYPE$6.Comma ||
token.type === TYPE$6.Function ||
token.type === TYPE$6.LeftParenthesis ||
token.type === TYPE$6.LeftSquareBracket ||
token.type === TYPE$6.LeftCurlyBracket ||
token.type === TYPE$6.Delim
);
}
function isCommaContextEnd(token) {
if (token === null) {
return true;
}
return (
token.type === TYPE$6.RightParenthesis ||
token.type === TYPE$6.RightSquareBracket ||
token.type === TYPE$6.RightCurlyBracket ||
token.type === TYPE$6.Delim
);
}
function internalMatch(tokens, state, syntaxes) {
function moveToNextToken() {
do {
tokenIndex++;
token = tokenIndex < tokens.length ? tokens[tokenIndex] : null;
} while (token !== null && (token.type === TYPE$6.WhiteSpace || token.type === TYPE$6.Comment));
}
function getNextToken(offset) {
var nextIndex = tokenIndex + offset;
return nextIndex < tokens.length ? tokens[nextIndex] : null;
}
function stateSnapshotFromSyntax(nextState, prev) {
return {
nextState: nextState,
matchStack: matchStack,
syntaxStack: syntaxStack,
thenStack: thenStack,
tokenIndex: tokenIndex,
prev: prev
};
}
function pushThenStack(nextState) {
thenStack = {
nextState: nextState,
matchStack: matchStack,
syntaxStack: syntaxStack,
prev: thenStack
};
}
function pushElseStack(nextState) {
elseStack = stateSnapshotFromSyntax(nextState, elseStack);
}
function addTokenToMatch() {
matchStack = {
type: TOKEN,
syntax: state.syntax,
token: token,
prev: matchStack
};
moveToNextToken();
syntaxStash = null;
if (tokenIndex > longestMatch) {
longestMatch = tokenIndex;
}
}
function openSyntax() {
syntaxStack = {
syntax: state.syntax,
opts: state.syntax.opts || (syntaxStack !== null && syntaxStack.opts) || null,
prev: syntaxStack
};
matchStack = {
type: OPEN_SYNTAX,
syntax: state.syntax,
token: matchStack.token,
prev: matchStack
};
}
function closeSyntax() {
if (matchStack.type === OPEN_SYNTAX) {
matchStack = matchStack.prev;
} else {
matchStack = {
type: CLOSE_SYNTAX,
syntax: syntaxStack.syntax,
token: matchStack.token,
prev: matchStack
};
}
syntaxStack = syntaxStack.prev;
}
var syntaxStack = null;
var thenStack = null;
var elseStack = null;
// null – stashing allowed, nothing stashed
// false – stashing disabled, nothing stashed
// anithing else – fail stashable syntaxes, some syntax stashed
var syntaxStash = null;
var iterationCount = 0; // count iterations and prevent infinite loop
var exitReason = null;
var token = null;
var tokenIndex = -1;
var longestMatch = 0;
var matchStack = {
type: STUB,
syntax: null,
token: null,
prev: null
};
moveToNextToken();
while (exitReason === null && ++iterationCount < ITERATION_LIMIT) {
// function mapList(list, fn) {
// var result = [];
// while (list) {
// result.unshift(fn(list));
// list = list.prev;
// }
// return result;
// }
// console.log('--\n',
// '#' + iterationCount,
// require('util').inspect({
// match: mapList(matchStack, x => x.type === TOKEN ? x.token && x.token.value : x.syntax ? ({ [OPEN_SYNTAX]: '<', [CLOSE_SYNTAX]: '</' }[x.type] || x.type) + '!' + x.syntax.name : null),
// token: token && token.value,
// tokenIndex,
// syntax: syntax.type + (syntax.id ? ' #' + syntax.id : '')
// }, { depth: null })
// );
switch (state.type) {
case 'Match':
if (thenStack === null) {
// turn to MISMATCH when some tokens left unmatched
if (token !== null) {
// doesn't mismatch if just one token left and it's an IE hack
if (tokenIndex !== tokens.length - 1 || (token.value !== '\\0' && token.value !== '\\9')) {
state = MISMATCH$1;
break;
}
}
// break the main loop, return a result - MATCH
exitReason = EXIT_REASON_MATCH;
break;
}
// go to next syntax (`then` branch)
state = thenStack.nextState;
// check match is not empty
if (state === DISALLOW_EMPTY$1) {
if (thenStack.matchStack === matchStack) {
state = MISMATCH$1;
break;
} else {
state = MATCH$1;
}
}
// close syntax if needed
while (thenStack.syntaxStack !== syntaxStack) {
closeSyntax();
}
// pop stack
thenStack = thenStack.prev;
break;
case 'Mismatch':
// when some syntax is stashed
if (syntaxStash !== null && syntaxStash !== false) {
// there is no else branches or a branch reduce match stack
if (elseStack === null || tokenIndex > elseStack.tokenIndex) {
// restore state from the stash
elseStack = syntaxStash;
syntaxStash = false; // disable stashing
}
} else if (elseStack === null) {
// no else branches -> break the main loop
// return a result - MISMATCH
exitReason = EXIT_REASON_MISMATCH;
break;
}
// go to next syntax (`else` branch)
state = elseStack.nextState;
// restore all the rest stack states
thenStack = elseStack.thenStack;
syntaxStack = elseStack.syntaxStack;
matchStack = elseStack.matchStack;
tokenIndex = elseStack.tokenIndex;
token = tokenIndex < tokens.length ? tokens[tokenIndex] : null;
// pop stack
elseStack = elseStack.prev;
break;
case 'MatchGraph':
state = state.match;
break;
case 'If':
// IMPORTANT: else stack push must go first,
// since it stores the state of thenStack before changes
if (state.else !== MISMATCH$1) {
pushElseStack(state.else);
}
if (state.then !== MATCH$1) {
pushThenStack(state.then);
}
state = state.match;
break;
case 'MatchOnce':
state = {
type: 'MatchOnceBuffer',
syntax: state,
index: 0,
mask: 0
};
break;
case 'MatchOnceBuffer':
var terms = state.syntax.terms;
if (state.index === terms.length) {
// no matches at all or it's required all terms to be matched
if (state.mask === 0 || state.syntax.all) {
state = MISMATCH$1;
break;
}
// a partial match is ok
state = MATCH$1;
break;
}
// all terms are matched
if (state.mask === (1 << terms.length) - 1) {
state = MATCH$1;
break;
}
for (; state.index < terms.length; state.index++) {
var matchFlag = 1 << state.index;
if ((state.mask & matchFlag) === 0) {
// IMPORTANT: else stack push must go first,
// since it stores the state of thenStack before changes
pushElseStack(state);
pushThenStack({
type: 'AddMatchOnce',
syntax: state.syntax,
mask: state.mask | matchFlag
});
// match
state = terms[state.index++];
break;
}
}
break;
case 'AddMatchOnce':
state = {
type: 'MatchOnceBuffer',
syntax: state.syntax,
index: 0,
mask: state.mask
};
break;
case 'Enum':
if (token !== null) {
var name = token.value.toLowerCase();
// drop \0 and \9 hack from keyword name
if (name.indexOf('\\') !== -1) {
name = name.replace(/\\[09].*$/, '');
}
if (hasOwnProperty$1.call(state.map, name)) {
state = state.map[name];
break;
}
}
state = MISMATCH$1;
break;
case 'Generic':
var opts = syntaxStack !== null ? syntaxStack.opts : null;
var lastTokenIndex = tokenIndex + Math.floor(state.fn(token, getNextToken, opts));
if (!isNaN(lastTokenIndex) && lastTokenIndex > tokenIndex) {
while (tokenIndex < lastTokenIndex) {
addTokenToMatch();
}
state = MATCH$1;
} else {
state = MISMATCH$1;
}
break;
case 'Type':
case 'Property':
var syntaxDict = state.type === 'Type' ? 'types' : 'properties';
var dictSyntax = hasOwnProperty$1.call(syntaxes, syntaxDict) ? syntaxes[syntaxDict][state.name] : null;
if (!dictSyntax || !dictSyntax.match) {
throw new Error(
'Bad syntax reference: ' +
(state.type === 'Type'
? '<' + state.name + '>'
: '<\'' + state.name + '\'>')
);
}
// stash a syntax for types with low priority
if (syntaxStash !== false && token !== null && state.type === 'Type') {
var lowPriorityMatching =
// https://drafts.csswg.org/css-values-4/#custom-idents
// When parsing positionally-ambiguous keywords in a property value, a <custom-ident> production
// can only claim the keyword if no other unfulfilled production can claim it.
(state.name === 'custom-ident' && token.type === TYPE$6.Ident) ||
// https://drafts.csswg.org/css-values-4/#lengths
// ... if a `0` could be parsed as either a <number> or a <length> in a property (such as line-height),
// it must parse as a <number>
(state.name === 'length' && token.value === '0');
if (lowPriorityMatching) {
if (syntaxStash === null) {
syntaxStash = stateSnapshotFromSyntax(state, elseStack);
}
state = MISMATCH$1;
break;
}
}
openSyntax();
state = dictSyntax.match;
break;
case 'Keyword':
var name = state.name;
if (token !== null) {
var keywordName = token.value;
// drop \0 and \9 hack from keyword name
if (keywordName.indexOf('\\') !== -1) {
keywordName = keywordName.replace(/\\[09].*$/, '');
}
if (areStringsEqualCaseInsensitive(keywordName, name)) {
addTokenToMatch();
state = MATCH$1;
break;
}
}
state = MISMATCH$1;
break;
case 'AtKeyword':
case 'Function':
if (token !== null && areStringsEqualCaseInsensitive(token.value, state.name)) {
addTokenToMatch();
state = MATCH$1;
break;
}
state = MISMATCH$1;
break;
case 'Token':
if (token !== null && token.value === state.value) {
addTokenToMatch();
state = MATCH$1;
break;
}
state = MISMATCH$1;
break;
case 'Comma':
if (token !== null && token.type === TYPE$6.Comma) {
if (isCommaContextStart(matchStack.token)) {
state = MISMATCH$1;
} else {
addTokenToMatch();
state = isCommaContextEnd(token) ? MISMATCH$1 : MATCH$1;
}
} else {
state = isCommaContextStart(matchStack.token) || isCommaContextEnd(token) ? MATCH$1 : MISMATCH$1;
}
break;
case 'String':
var string = '';
for (var lastTokenIndex = tokenIndex; lastTokenIndex < tokens.length && string.length < state.value.length; lastTokenIndex++) {
string += tokens[lastTokenIndex].value;
}
if (areStringsEqualCaseInsensitive(string, state.value)) {
while (tokenIndex < lastTokenIndex) {
addTokenToMatch();
}
state = MATCH$1;
} else {
state = MISMATCH$1;
}
break;
default:
throw new Error('Unknown node type: ' + state.type);
}
}
totalIterationCount += iterationCount;
switch (exitReason) {
case null:
console.warn('[csstree-match] BREAK after ' + ITERATION_LIMIT + ' iterations');
exitReason = EXIT_REASON_ITERATION_LIMIT;
matchStack = null;
break;
case EXIT_REASON_MATCH:
while (syntaxStack !== null) {
closeSyntax();
}
break;
default:
matchStack = null;
}
return {
tokens: tokens,
reason: exitReason,
iterations: iterationCount,
match: matchStack,
longestMatch: longestMatch
};
}
function matchAsList(tokens, matchGraph, syntaxes) {
var matchResult = internalMatch(tokens, matchGraph, syntaxes || {});
if (matchResult.match !== null) {
var item = reverseList(matchResult.match).prev;
matchResult.match = [];
while (item !== null) {
switch (item.type) {
case STUB:
break;
case OPEN_SYNTAX:
case CLOSE_SYNTAX:
matchResult.match.push({
type: item.type,
syntax: item.syntax
});
break;
default:
matchResult.match.push({
token: item.token.value,
node: item.token.node
});
break;
}
item = item.prev;
}
}
return matchResult;
}
function matchAsTree(tokens, matchGraph, syntaxes) {
var matchResult = internalMatch(tokens, matchGraph, syntaxes || {});
if (matchResult.match === null) {
return matchResult;
}
var item = matchResult.match;
var host = matchResult.match = {
syntax: matchGraph.syntax || null,
match: []
};
var hostStack = [host];
// revert a list and start with 2nd item since 1st is a stub item
item = reverseList(item).prev;
// build a tree
while (item !== null) {
switch (item.type) {
case OPEN_SYNTAX:
host.match.push(host = {
syntax: item.syntax,
match: []
});
hostStack.push(host);
break;
case CLOSE_SYNTAX:
hostStack.pop();
host = hostStack[hostStack.length - 1];
break;
default:
host.match.push({
syntax: item.syntax || null,
token: item.token.value,
node: item.token.node
});
}
item = item.prev;
}
return matchResult;
}
var match = {
matchAsList: matchAsList,
matchAsTree: matchAsTree,
getTotalIterationCount: function() {
return totalIterationCount;
}
};
function getTrace(node) {
function shouldPutToTrace(syntax) {
if (syntax === null) {
return false;
}
return (
syntax.type === 'Type' ||
syntax.type === 'Property' ||
syntax.type === 'Keyword'
);
}
function hasMatch(matchNode) {
if (Array.isArray(matchNode.match)) {
// use for-loop for better perfomance
for (var i = 0; i < matchNode.match.length; i++) {
if (hasMatch(matchNode.match[i])) {
if (shouldPutToTrace(matchNode.syntax)) {
result.unshift(matchNode.syntax);
}
return true;
}
}
} else if (matchNode.node === node) {
result = shouldPutToTrace(matchNode.syntax)
? [matchNode.syntax]
: [];
return true;
}
return false;
}
var result = null;
if (this.matched !== null) {
hasMatch(this.matched);
}
return result;
}
function testNode(match, node, fn) {
var trace = getTrace.call(match, node);
if (trace === null) {
return false;
}
return trace.some(fn);
}
function isType(node, type) {
return testNode(this, node, function(matchNode) {
return matchNode.type === 'Type' && matchNode.name === type;
});
}
function isProperty(node, property) {
return testNode(this, node, function(matchNode) {
return matchNode.type === 'Property' && matchNode.name === property;
});
}
function isKeyword(node) {
return testNode(this, node, function(matchNode) {
return matchNode.type === 'Keyword';
});
}
var trace = {
getTrace: getTrace,
isType: isType,
isProperty: isProperty,
isKeyword: isKeyword
};
function getFirstMatchNode(matchNode) {
if ('node' in matchNode) {
return matchNode.node;
}
return getFirstMatchNode(matchNode.match[0]);
}
function getLastMatchNode(matchNode) {
if ('node' in matchNode) {
return matchNode.node;
}
return getLastMatchNode(matchNode.match[matchNode.match.length - 1]);
}
function matchFragments(lexer, ast, match, type, name) {
function findFragments(matchNode) {
if (matchNode.syntax !== null &&
matchNode.syntax.type === type &&
matchNode.syntax.name === name) {
var start = getFirstMatchNode(matchNode);
var end = getLastMatchNode(matchNode);
lexer.syntax.walk(ast, function(node, item, list) {
if (node === start) {
var nodes = new List_1();
do {
nodes.appendData(item.data);
if (item.data === end) {
break;
}
item = item.next;
} while (item !== null);
fragments.push({
parent: list,
nodes: nodes
});
}
});
}
if (Array.isArray(matchNode.match)) {
matchNode.match.forEach(findFragments);
}
}
var fragments = [];
if (match.matched !== null) {
findFragments(match.matched);
}
return fragments;
}
var search = {
matchFragments: matchFragments
};
var hasOwnProperty$2 = Object.prototype.hasOwnProperty;
function isValidNumber(value) {
// Number.isInteger(value) && value >= 0
return (
typeof value === 'number' &&
isFinite(value) &&
Math.floor(value) === value &&
value >= 0
);
}
function isValidLocation(loc) {
return (
Boolean(loc) &&
isValidNumber(loc.offset) &&
isValidNumber(loc.line) &&
isValidNumber(loc.column)
);
}
function createNodeStructureChecker(type, fields) {
return function checkNode(node, warn) {
if (!node || node.constructor !== Object) {
return warn(node, 'Type of node should be an Object');
}
for (var key in node) {
var valid = true;
if (hasOwnProperty$2.call(node, key) === false) {
continue;
}
if (key === 'type') {
if (node.type !== type) {
warn(node, 'Wrong node type `' + node.type + '`, expected `' + type + '`');
}
} else if (key === 'loc') {
if (node.loc === null) {
continue;
} else if (node.loc && node.loc.constructor === Object) {
if (typeof node.loc.source !== 'string') {
key += '.source';
} else if (!isValidLocation(node.loc.start)) {
key += '.start';
} else if (!isValidLocation(node.loc.end)) {
key += '.end';
} else {
continue;
}
}
valid = false;
} else if (fields.hasOwnProperty(key)) {
for (var i = 0, valid = false; !valid && i < fields[key].length; i++) {
var fieldType = fields[key][i];
switch (fieldType) {
case String:
valid = typeof node[key] === 'string';
break;
case Boolean:
valid = typeof node[key] === 'boolean';
break;
case null:
valid = node[key] === null;
break;
default:
if (typeof fieldType === 'string') {
valid = node[key] && node[key].type === fieldType;
} else if (Array.isArray(fieldType)) {
valid = node[key] instanceof List_1;
}
}
}
} else {
warn(node, 'Unknown field `' + key + '` for ' + type + ' node type');
}
if (!valid) {
warn(node, 'Bad value for `' + type + '.' + key + '`');
}
}
for (var key in fields) {
if (hasOwnProperty$2.call(fields, key) &&
hasOwnProperty$2.call(node, key) === false) {
warn(node, 'Field `' + type + '.' + key + '` is missed');
}
}
};
}
function processStructure(name, nodeType) {
var structure = nodeType.structure;
var fields = {
type: String,
loc: true
};
var docs = {
type: '"' + name + '"'
};
for (var key in structure) {
if (hasOwnProperty$2.call(structure, key) === false) {
continue;
}
var docsTypes = [];
var fieldTypes = fields[key] = Array.isArray(structure[key])
? structure[key].slice()
: [structure[key]];
for (var i = 0; i < fieldTypes.length; i++) {
var fieldType = fieldTypes[i];
if (fieldType === String || fieldType === Boolean) {
docsTypes.push(fieldType.name);
} else if (fieldType === null) {
docsTypes.push('null');
} else if (typeof fieldType === 'string') {
docsTypes.push('<' + fieldType + '>');
} else if (Array.isArray(fieldType)) {
docsTypes.push('List'); // TODO: use type enum
} else {
throw new Error('Wrong value `' + fieldType + '` in `' + name + '.' + key + '` structure definition');
}
}
docs[key] = docsTypes.join(' | ');
}
return {
docs: docs,
check: createNodeStructureChecker(name, fields)
};
}
var structure = {
getStructureFromConfig: function(config) {
var structure = {};
if (config.node) {
for (var name in config.node) {
if (hasOwnProperty$2.call(config.node, name)) {
var nodeType = config.node[name];
if (nodeType.structure) {
structure[name] = processStructure(name, nodeType);
} else {
throw new Error('Missed `structure` field in `' + name + '` node type definition');
}
}
}
}
return structure;
}
};
var SyntaxReferenceError$1 = error.SyntaxReferenceError;
var MatchError$1 = error.MatchError;
var buildMatchGraph$1 = matchGraph.buildMatchGraph;
var matchAsTree$1 = match.matchAsTree;
var getStructureFromConfig = structure.getStructureFromConfig;
var cssWideKeywords$1 = buildMatchGraph$1('inherit | initial | unset');
var cssWideKeywordsWithExpression = buildMatchGraph$1('inherit | initial | unset | <-ms-legacy-expression>');
function dumpMapSyntax(map, compact, syntaxAsAst) {
var result = {};
for (var name in map) {
if (map[name].syntax) {
result[name] = syntaxAsAst
? map[name].syntax
: generate_1(map[name].syntax, { compact: compact });
}
}
return result;
}
function valueHasVar(tokens) {
for (var i = 0; i < tokens.length; i++) {
if (tokens[i].value.toLowerCase() === 'var(') {
return true;
}
}
return false;
}
function buildMatchResult(match, error, iterations) {
return {
matched: match,
iterations: iterations,
error: error,
getTrace: trace.getTrace,
isType: trace.isType,
isProperty: trace.isProperty,
isKeyword: trace.isKeyword
};
}
function matchSyntax(lexer, syntax, value, useCommon) {
var tokens = prepareTokens_1(value, lexer.syntax);
var result;
if (valueHasVar(tokens)) {
return buildMatchResult(null, new Error('Matching for a tree with var() is not supported'));
}
if (useCommon) {
result = matchAsTree$1(tokens, lexer.valueCommonSyntax, lexer);
}
if (!useCommon || !result.match) {
result = matchAsTree$1(tokens, syntax.match, lexer);
if (!result.match) {
return buildMatchResult(
null,
new MatchError$1(result.reason, syntax.syntax, value, result),
result.iterations
);
}
}
return buildMatchResult(result.match, null, result.iterations);
}
var Lexer = function(config, syntax, structure) {
this.valueCommonSyntax = cssWideKeywords$1;
this.syntax = syntax;
this.generic = false;
this.properties = {};
this.types = {};
this.structure = structure || getStructureFromConfig(config);
if (config) {
if (config.types) {
for (var name in config.types) {
this.addType_(name, config.types[name]);
}
}
if (config.generic) {
this.generic = true;
for (var name in generic) {
this.addType_(name, generic[name]);
}
}
if (config.properties) {
for (var name in config.properties) {
this.addProperty_(name, config.properties[name]);
}
}
}
};
Lexer.prototype = {
structure: {},
checkStructure: function(ast) {
function collectWarning(node, message) {
warns.push({
node: node,
message: message
});
}
var structure = this.structure;
var warns = [];
this.syntax.walk(ast, function(node) {
if (structure.hasOwnProperty(node.type)) {
structure[node.type].check(node, collectWarning);
} else {
collectWarning(node, 'Unknown node type `' + node.type + '`');
}
});
return warns.length ? warns : false;
},
createDescriptor: function(syntax, type, name) {
var ref = {
type: type,
name: name
};
var descriptor = {
type: type,
name: name,
syntax: null,
match: null
};
if (typeof syntax === 'function') {
descriptor.match = buildMatchGraph$1(syntax, ref);
} else {
if (typeof syntax === 'string') {
// lazy parsing on first access
Object.defineProperty(descriptor, 'syntax', {
get: function() {
Object.defineProperty(descriptor, 'syntax', {
value: parse_1(syntax)
});
return descriptor.syntax;
}
});
} else {
descriptor.syntax = syntax;
}
// lazy graph build on first access
Object.defineProperty(descriptor, 'match', {
get: function() {
Object.defineProperty(descriptor, 'match', {
value: buildMatchGraph$1(descriptor.syntax, ref)
});
return descriptor.match;
}
});
}
return descriptor;
},
addProperty_: function(name, syntax) {
this.properties[name] = this.createDescriptor(syntax, 'Property', name);
},
addType_: function(name, syntax) {
this.types[name] = this.createDescriptor(syntax, 'Type', name);
if (syntax === generic['-ms-legacy-expression']) {
this.valueCommonSyntax = cssWideKeywordsWithExpression;
}
},
matchDeclaration: function(node) {
if (node.type !== 'Declaration') {
return buildMatchResult(null, new Error('Not a Declaration node'));
}
return this.matchProperty(node.property, node.value);
},
matchProperty: function(propertyName, value) {
var property = names.property(propertyName);
// don't match syntax for a custom property
if (property.custom) {
return buildMatchResult(null, new Error('Lexer matching doesn\'t applicable for custom properties'));
}
var propertySyntax = property.vendor
? this.getProperty(property.name) || this.getProperty(property.basename)
: this.getProperty(property.name);
if (!propertySyntax) {
return buildMatchResult(null, new SyntaxReferenceError$1('Unknown property', propertyName));
}
return matchSyntax(this, propertySyntax, value, true);
},
matchType: function(typeName, value) {
var typeSyntax = this.getType(typeName);
if (!typeSyntax) {
return buildMatchResult(null, new SyntaxReferenceError$1('Unknown type', typeName));
}
return matchSyntax(this, typeSyntax, value, false);
},
match: function(syntax, value) {
if (typeof syntax !== 'string' && (!syntax || !syntax.type)) {
return buildMatchResult(null, new SyntaxReferenceError$1('Bad syntax'));
}
if (typeof syntax === 'string' || !syntax.match) {
syntax = this.createDescriptor(syntax, 'Type', 'anonymous');
}
return matchSyntax(this, syntax, value, false);
},
findValueFragments: function(propertyName, value, type, name) {
return search.matchFragments(this, value, this.matchProperty(propertyName, value), type, name);
},
findDeclarationValueFragments: function(declaration, type, name) {
return search.matchFragments(this, declaration.value, this.matchDeclaration(declaration), type, name);
},
findAllFragments: function(ast, type, name) {
var result = [];
this.syntax.walk(ast, {
visit: 'Declaration',
enter: function(declaration) {
result.push.apply(result, this.findDeclarationValueFragments(declaration, type, name));
}.bind(this)
});
return result;
},
getProperty: function(name) {
return this.properties.hasOwnProperty(name) ? this.properties[name] : null;
},
getType: function(name) {
return this.types.hasOwnProperty(name) ? this.types[name] : null;
},
validate: function() {
function validate(syntax, name, broken, descriptor) {
if (broken.hasOwnProperty(name)) {
return broken[name];
}
broken[name] = false;
if (descriptor.syntax !== null) {
walk(descriptor.syntax, function(node) {
if (node.type !== 'Type' && node.type !== 'Property') {
return;
}
var map = node.type === 'Type' ? syntax.types : syntax.properties;
var brokenMap = node.type === 'Type' ? brokenTypes : brokenProperties;
if (!map.hasOwnProperty(node.name) || validate(syntax, node.name, brokenMap, map[node.name])) {
broken[name] = true;
}
}, this);
}
}
var brokenTypes = {};
var brokenProperties = {};
for (var key in this.types) {
validate(this, key, brokenTypes, this.types[key]);
}
for (var key in this.properties) {
validate(this, key, brokenProperties, this.properties[key]);
}
brokenTypes = Object.keys(brokenTypes).filter(function(name) {
return brokenTypes[name];
});
brokenProperties = Object.keys(brokenProperties).filter(function(name) {
return brokenProperties[name];
});
if (brokenTypes.length || brokenProperties.length) {
return {
types: brokenTypes,
properties: brokenProperties
};
}
return null;
},
dump: function(syntaxAsAst, pretty) {
return {
generic: this.generic,
types: dumpMapSyntax(this.types, !pretty, syntaxAsAst),
properties: dumpMapSyntax(this.properties, !pretty, syntaxAsAst)
};
},
toString: function() {
return JSON.stringify(this.dump());
}
};
var Lexer_1 = Lexer;
var definitionSyntax = {
SyntaxError: _SyntaxError$1,
parse: parse_1,
generate: generate_1,
walk: walk
};
var isBOM$2 = tokenizer.isBOM;
var N$3 = 10;
var F$2 = 12;
var R$2 = 13;
function computeLinesAndColumns(host, source) {
var sourceLength = source.length;
var lines = adoptBuffer(host.lines, sourceLength); // +1
var line = host.startLine;
var columns = adoptBuffer(host.columns, sourceLength);
var column = host.startColumn;
var startOffset = source.length > 0 ? isBOM$2(source.charCodeAt(0)) : 0;
for (var i = startOffset; i < sourceLength; i++) { // -1
var code = source.charCodeAt(i);
lines[i] = line;
columns[i] = column++;
if (code === N$3 || code === R$2 || code === F$2) {
if (code === R$2 && i + 1 < sourceLength && source.charCodeAt(i + 1) === N$3) {
i++;
lines[i] = line;
columns[i] = column;
}
line++;
column = 1;
}
}
lines[i] = line;
columns[i] = column;
host.lines = lines;
host.columns = columns;
}
var OffsetToLocation = function() {
this.lines = null;
this.columns = null;
this.linesAndColumnsComputed = false;
};
OffsetToLocation.prototype = {
setSource: function(source, startOffset, startLine, startColumn) {
this.source = source;
this.startOffset = typeof startOffset === 'undefined' ? 0 : startOffset;
this.startLine = typeof startLine === 'undefined' ? 1 : startLine;
this.startColumn = typeof startColumn === 'undefined' ? 1 : startColumn;
this.linesAndColumnsComputed = false;
},
ensureLinesAndColumnsComputed: function() {
if (!this.linesAndColumnsComputed) {
computeLinesAndColumns(this, this.source);
this.linesAndColumnsComputed = true;
}
},
getLocation: function(offset, filename) {
this.ensureLinesAndColumnsComputed();
return {
source: filename,
offset: this.startOffset + offset,
line: this.lines[offset],
column: this.columns[offset]
};
},
getLocationRange: function(start, end, filename) {
this.ensureLinesAndColumnsComputed();
return {
source: filename,
start: {
offset: this.startOffset + start,
line: this.lines[start],
column: this.columns[start]
},
end: {
offset: this.startOffset + end,
line: this.lines[end],
column: this.columns[end]
}
};
}
};
var OffsetToLocation_1 = OffsetToLocation;
var TYPE$7 = tokenizer.TYPE;
var WHITESPACE$2 = TYPE$7.WhiteSpace;
var COMMENT$2 = TYPE$7.Comment;
var sequence = function readSequence(recognizer) {
var children = this.createList();
var child = null;
var context = {
recognizer: recognizer,
space: null,
ignoreWS: false,
ignoreWSAfter: false
};
this.scanner.skipSC();
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case COMMENT$2:
this.scanner.next();
continue;
case WHITESPACE$2:
if (context.ignoreWS) {
this.scanner.next();
} else {
context.space = this.WhiteSpace();
}
continue;
}
child = recognizer.getNode.call(this, context);
if (child === undefined) {
break;
}
if (context.space !== null) {
children.push(context.space);
context.space = null;
}
children.push(child);
if (context.ignoreWSAfter) {
context.ignoreWSAfter = false;
context.ignoreWS = true;
} else {
context.ignoreWS = false;
}
}
return children;
};
var findWhiteSpaceStart$1 = utils.findWhiteSpaceStart;
var noop$2 = function() {};
var TYPE$8 = _const.TYPE;
var NAME$2 = _const.NAME;
var WHITESPACE$3 = TYPE$8.WhiteSpace;
var IDENT$2 = TYPE$8.Ident;
var FUNCTION = TYPE$8.Function;
var URL = TYPE$8.Url;
var HASH = TYPE$8.Hash;
var PERCENTAGE = TYPE$8.Percentage;
var NUMBER$2 = TYPE$8.Number;
var NUMBERSIGN$1 = 0x0023; // U+0023 NUMBER SIGN (#)
var NULL = 0;
function createParseContext(name) {
return function() {
return this[name]();
};
}
function processConfig(config) {
var parserConfig = {
context: {},
scope: {},
atrule: {},
pseudo: {}
};
if (config.parseContext) {
for (var name in config.parseContext) {
switch (typeof config.parseContext[name]) {
case 'function':
parserConfig.context[name] = config.parseContext[name];
break;
case 'string':
parserConfig.context[name] = createParseContext(config.parseContext[name]);
break;
}
}
}
if (config.scope) {
for (var name in config.scope) {
parserConfig.scope[name] = config.scope[name];
}
}
if (config.atrule) {
for (var name in config.atrule) {
var atrule = config.atrule[name];
if (atrule.parse) {
parserConfig.atrule[name] = atrule.parse;
}
}
}
if (config.pseudo) {
for (var name in config.pseudo) {
var pseudo = config.pseudo[name];
if (pseudo.parse) {
parserConfig.pseudo[name] = pseudo.parse;
}
}
}
if (config.node) {
for (var name in config.node) {
parserConfig[name] = config.node[name].parse;
}
}
return parserConfig;
}
var create = function createParser(config) {
var parser = {
scanner: new TokenStream_1(),
locationMap: new OffsetToLocation_1(),
filename: '<unknown>',
needPositions: false,
onParseError: noop$2,
onParseErrorThrow: false,
parseAtrulePrelude: true,
parseRulePrelude: true,
parseValue: true,
parseCustomProperty: false,
readSequence: sequence,
createList: function() {
return new List_1();
},
createSingleNodeList: function(node) {
return new List_1().appendData(node);
},
getFirstListNode: function(list) {
return list && list.first();
},
getLastListNode: function(list) {
return list.last();
},
parseWithFallback: function(consumer, fallback) {
var startToken = this.scanner.tokenIndex;
try {
return consumer.call(this);
} catch (e) {
if (this.onParseErrorThrow) {
throw e;
}
var fallbackNode = fallback.call(this, startToken);
this.onParseErrorThrow = true;
this.onParseError(e, fallbackNode);
this.onParseErrorThrow = false;
return fallbackNode;
}
},
lookupNonWSType: function(offset) {
do {
var type = this.scanner.lookupType(offset++);
if (type !== WHITESPACE$3) {
return type;
}
} while (type !== NULL);
return NULL;
},
eat: function(tokenType) {
if (this.scanner.tokenType !== tokenType) {
var offset = this.scanner.tokenStart;
var message = NAME$2[tokenType] + ' is expected';
// tweak message and offset
switch (tokenType) {
case IDENT$2:
// when identifier is expected but there is a function or url
if (this.scanner.tokenType === FUNCTION || this.scanner.tokenType === URL) {
offset = this.scanner.tokenEnd - 1;
message = 'Identifier is expected but function found';
} else {
message = 'Identifier is expected';
}
break;
case HASH:
if (this.scanner.isDelim(NUMBERSIGN$1)) {
this.scanner.next();
offset++;
message = 'Name is expected';
}
break;
case PERCENTAGE:
if (this.scanner.tokenType === NUMBER$2) {
offset = this.scanner.tokenEnd;
message = 'Percent sign is expected';
}
break;
default:
// when test type is part of another token show error for current position + 1
// e.g. eat(HYPHENMINUS) will fail on "-foo", but pointing on "-" is odd
if (this.scanner.source.charCodeAt(this.scanner.tokenStart) === tokenType) {
offset = offset + 1;
}
}
this.error(message, offset);
}
this.scanner.next();
},
consume: function(tokenType) {
var value = this.scanner.getTokenValue();
this.eat(tokenType);
return value;
},
consumeFunctionName: function() {
var name = this.scanner.source.substring(this.scanner.tokenStart, this.scanner.tokenEnd - 1);
this.eat(FUNCTION);
return name;
},
getLocation: function(start, end) {
if (this.needPositions) {
return this.locationMap.getLocationRange(
start,
end,
this.filename
);
}
return null;
},
getLocationFromList: function(list) {
if (this.needPositions) {
var head = this.getFirstListNode(list);
var tail = this.getLastListNode(list);
return this.locationMap.getLocationRange(
head !== null ? head.loc.start.offset - this.locationMap.startOffset : this.scanner.tokenStart,
tail !== null ? tail.loc.end.offset - this.locationMap.startOffset : this.scanner.tokenStart,
this.filename
);
}
return null;
},
error: function(message, offset) {
var location = typeof offset !== 'undefined' && offset < this.scanner.source.length
? this.locationMap.getLocation(offset)
: this.scanner.eof
? this.locationMap.getLocation(findWhiteSpaceStart$1(this.scanner.source, this.scanner.source.length - 1))
: this.locationMap.getLocation(this.scanner.tokenStart);
throw new _SyntaxError(
message || 'Unexpected input',
this.scanner.source,
location.offset,
location.line,
location.column
);
}
};
config = processConfig(config || {});
for (var key in config) {
parser[key] = config[key];
}
return function(source, options) {
options = options || {};
var context = options.context || 'default';
var ast;
tokenizer(source, parser.scanner);
parser.locationMap.setSource(
source,
options.offset,
options.line,
options.column
);
parser.filename = options.filename || '<unknown>';
parser.needPositions = Boolean(options.positions);
parser.onParseError = typeof options.onParseError === 'function' ? options.onParseError : noop$2;
parser.onParseErrorThrow = false;
parser.parseAtrulePrelude = 'parseAtrulePrelude' in options ? Boolean(options.parseAtrulePrelude) : true;
parser.parseRulePrelude = 'parseRulePrelude' in options ? Boolean(options.parseRulePrelude) : true;
parser.parseValue = 'parseValue' in options ? Boolean(options.parseValue) : true;
parser.parseCustomProperty = 'parseCustomProperty' in options ? Boolean(options.parseCustomProperty) : false;
if (!parser.context.hasOwnProperty(context)) {
throw new Error('Unknown context `' + context + '`');
}
ast = parser.context[context].call(parser, options);
if (!parser.scanner.eof) {
parser.error();
}
return ast;
};
};
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
* Copyright 2011 Mozilla Foundation and contributors
* Licensed under the New BSD license. See LICENSE or:
* http://opensource.org/licenses/BSD-3-Clause
*/
var intToCharMap = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('');
/**
* Encode an integer in the range of 0 to 63 to a single base 64 digit.
*/
var encode = function (number) {
if (0 <= number && number < intToCharMap.length) {
return intToCharMap[number];
}
throw new TypeError("Must be between 0 and 63: " + number);
};
/**
* Decode a single base 64 character code digit to an integer. Returns -1 on
* failure.
*/
var decode = function (charCode) {
var bigA = 65; // 'A'
var bigZ = 90; // 'Z'
var littleA = 97; // 'a'
var littleZ = 122; // 'z'
var zero = 48; // '0'
var nine = 57; // '9'
var plus = 43; // '+'
var slash = 47; // '/'
var littleOffset = 26;
var numberOffset = 52;
// 0 - 25: ABCDEFGHIJKLMNOPQRSTUVWXYZ
if (bigA <= charCode && charCode <= bigZ) {
return (charCode - bigA);
}
// 26 - 51: abcdefghijklmnopqrstuvwxyz
if (littleA <= charCode && charCode <= littleZ) {
return (charCode - littleA + littleOffset);
}
// 52 - 61: 0123456789
if (zero <= charCode && charCode <= nine) {
return (charCode - zero + numberOffset);
}
// 62: +
if (charCode == plus) {
return 62;
}
// 63: /
if (charCode == slash) {
return 63;
}
// Invalid base64 digit.
return -1;
};
var base64 = {
encode: encode,
decode: decode
};
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
* Copyright 2011 Mozilla Foundation and contributors
* Licensed under the New BSD license. See LICENSE or:
* http://opensource.org/licenses/BSD-3-Clause
*
* Based on the Base 64 VLQ implementation in Closure Compiler:
* https://code.google.com/p/closure-compiler/source/browse/trunk/src/com/google/debugging/sourcemap/Base64VLQ.java
*
* Copyright 2011 The Closure Compiler Authors. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// A single base 64 digit can contain 6 bits of data. For the base 64 variable
// length quantities we use in the source map spec, the first bit is the sign,
// the next four bits are the actual value, and the 6th bit is the
// continuation bit. The continuation bit tells us whether there are more
// digits in this value following this digit.
//
// Continuation
// | Sign
// | |
// V V
// 101011
var VLQ_BASE_SHIFT = 5;
// binary: 100000
var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
// binary: 011111
var VLQ_BASE_MASK = VLQ_BASE - 1;
// binary: 100000
var VLQ_CONTINUATION_BIT = VLQ_BASE;
/**
* Converts from a two-complement value to a value where the sign bit is
* placed in the least significant bit. For example, as decimals:
* 1 becomes 2 (10 binary), -1 becomes 3 (11 binary)
* 2 becomes 4 (100 binary), -2 becomes 5 (101 binary)
*/
function toVLQSigned(aValue) {
return aValue < 0
? ((-aValue) << 1) + 1
: (aValue << 1) + 0;
}
/**
* Converts to a two-complement value from a value where the sign bit is
* placed in the least significant bit. For example, as decimals:
* 2 (10 binary) becomes 1, 3 (11 binary) becomes -1
* 4 (100 binary) becomes 2, 5 (101 binary) becomes -2
*/
function fromVLQSigned(aValue) {
var isNegative = (aValue & 1) === 1;
var shifted = aValue >> 1;
return isNegative
? -shifted
: shifted;
}
/**
* Returns the base 64 VLQ encoded value.
*/
var encode$1 = function base64VLQ_encode(aValue) {
var encoded = "";
var digit;
var vlq = toVLQSigned(aValue);
do {
digit = vlq & VLQ_BASE_MASK;
vlq >>>= VLQ_BASE_SHIFT;
if (vlq > 0) {
// There are still more digits in this value, so we must make sure the
// continuation bit is marked.
digit |= VLQ_CONTINUATION_BIT;
}
encoded += base64.encode(digit);
} while (vlq > 0);
return encoded;
};
/**
* Decodes the next base 64 VLQ value from the given string and returns the
* value and the rest of the string via the out parameter.
*/
var decode$1 = function base64VLQ_decode(aStr, aIndex, aOutParam) {
var strLen = aStr.length;
var result = 0;
var shift = 0;
var continuation, digit;
do {
if (aIndex >= strLen) {
throw new Error("Expected more digits in base 64 VLQ value.");
}
digit = base64.decode(aStr.charCodeAt(aIndex++));
if (digit === -1) {
throw new Error("Invalid base64 digit: " + aStr.charAt(aIndex - 1));
}
continuation = !!(digit & VLQ_CONTINUATION_BIT);
digit &= VLQ_BASE_MASK;
result = result + (digit << shift);
shift += VLQ_BASE_SHIFT;
} while (continuation);
aOutParam.value = fromVLQSigned(result);
aOutParam.rest = aIndex;
};
var base64Vlq = {
encode: encode$1,
decode: decode$1
};
function createCommonjsModule(fn, module) {
return module = { exports: {} }, fn(module, module.exports), module.exports;
}
function getCjsExportFromNamespace (n) {
return n && n['default'] || n;
}
var util = createCommonjsModule(function (module, exports) {
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
* Copyright 2011 Mozilla Foundation and contributors
* Licensed under the New BSD license. See LICENSE or:
* http://opensource.org/licenses/BSD-3-Clause
*/
/**
* This is a helper function for getting values from parameter/options
* objects.
*
* @param args The object we are extracting values from
* @param name The name of the property we are getting.
* @param defaultValue An optional value to return if the property is missing
* from the object. If this is not specified and the property is missing, an
* error will be thrown.
*/
function getArg(aArgs, aName, aDefaultValue) {
if (aName in aArgs) {
return aArgs[aName];
} else if (arguments.length === 3) {
return aDefaultValue;
} else {
throw new Error('"' + aName + '" is a required argument.');
}
}
exports.getArg = getArg;
var urlRegexp = /^(?:([\w+\-.]+):)?\/\/(?:(\w+:\w+)@)?([\w.-]*)(?::(\d+))?(.*)$/;
var dataUrlRegexp = /^data:.+\,.+$/;
function urlParse(aUrl) {
var match = aUrl.match(urlRegexp);
if (!match) {
return null;
}
return {
scheme: match[1],
auth: match[2],
host: match[3],
port: match[4],
path: match[5]
};
}
exports.urlParse = urlParse;
function urlGenerate(aParsedUrl) {
var url = '';
if (aParsedUrl.scheme) {
url += aParsedUrl.scheme + ':';
}
url += '//';
if (aParsedUrl.auth) {
url += aParsedUrl.auth + '@';
}
if (aParsedUrl.host) {
url += aParsedUrl.host;
}
if (aParsedUrl.port) {
url += ":" + aParsedUrl.port;
}
if (aParsedUrl.path) {
url += aParsedUrl.path;
}
return url;
}
exports.urlGenerate = urlGenerate;
/**
* Normalizes a path, or the path portion of a URL:
*
* - Replaces consecutive slashes with one slash.
* - Removes unnecessary '.' parts.
* - Removes unnecessary '<dir>/..' parts.
*
* Based on code in the Node.js 'path' core module.
*
* @param aPath The path or url to normalize.
*/
function normalize(aPath) {
var path = aPath;
var url = urlParse(aPath);
if (url) {
if (!url.path) {
return aPath;
}
path = url.path;
}
var isAbsolute = exports.isAbsolute(path);
var parts = path.split(/\/+/);
for (var part, up = 0, i = parts.length - 1; i >= 0; i--) {
part = parts[i];
if (part === '.') {
parts.splice(i, 1);
} else if (part === '..') {
up++;
} else if (up > 0) {
if (part === '') {
// The first part is blank if the path is absolute. Trying to go
// above the root is a no-op. Therefore we can remove all '..' parts
// directly after the root.
parts.splice(i + 1, up);
up = 0;
} else {
parts.splice(i, 2);
up--;
}
}
}
path = parts.join('/');
if (path === '') {
path = isAbsolute ? '/' : '.';
}
if (url) {
url.path = path;
return urlGenerate(url);
}
return path;
}
exports.normalize = normalize;
/**
* Joins two paths/URLs.
*
* @param aRoot The root path or URL.
* @param aPath The path or URL to be joined with the root.
*
* - If aPath is a URL or a data URI, aPath is returned, unless aPath is a
* scheme-relative URL: Then the scheme of aRoot, if any, is prepended
* first.
* - Otherwise aPath is a path. If aRoot is a URL, then its path portion
* is updated with the result and aRoot is returned. Otherwise the result
* is returned.
* - If aPath is absolute, the result is aPath.
* - Otherwise the two paths are joined with a slash.
* - Joining for example 'http://' and 'www.example.com' is also supported.
*/
function join(aRoot, aPath) {
if (aRoot === "") {
aRoot = ".";
}
if (aPath === "") {
aPath = ".";
}
var aPathUrl = urlParse(aPath);
var aRootUrl = urlParse(aRoot);
if (aRootUrl) {
aRoot = aRootUrl.path || '/';
}
// `join(foo, '//www.example.org')`
if (aPathUrl && !aPathUrl.scheme) {
if (aRootUrl) {
aPathUrl.scheme = aRootUrl.scheme;
}
return urlGenerate(aPathUrl);
}
if (aPathUrl || aPath.match(dataUrlRegexp)) {
return aPath;
}
// `join('http://', 'www.example.com')`
if (aRootUrl && !aRootUrl.host && !aRootUrl.path) {
aRootUrl.host = aPath;
return urlGenerate(aRootUrl);
}
var joined = aPath.charAt(0) === '/'
? aPath
: normalize(aRoot.replace(/\/+$/, '') + '/' + aPath);
if (aRootUrl) {
aRootUrl.path = joined;
return urlGenerate(aRootUrl);
}
return joined;
}
exports.join = join;
exports.isAbsolute = function (aPath) {
return aPath.charAt(0) === '/' || urlRegexp.test(aPath);
};
/**
* Make a path relative to a URL or another path.
*
* @param aRoot The root path or URL.
* @param aPath The path or URL to be made relative to aRoot.
*/
function relative(aRoot, aPath) {
if (aRoot === "") {
aRoot = ".";
}
aRoot = aRoot.replace(/\/$/, '');
// It is possible for the path to be above the root. In this case, simply
// checking whether the root is a prefix of the path won't work. Instead, we
// need to remove components from the root one by one, until either we find
// a prefix that fits, or we run out of components to remove.
var level = 0;
while (aPath.indexOf(aRoot + '/') !== 0) {
var index = aRoot.lastIndexOf("/");
if (index < 0) {
return aPath;
}
// If the only part of the root that is left is the scheme (i.e. http://,
// file:///, etc.), one or more slashes (/), or simply nothing at all, we
// have exhausted all components, so the path is not relative to the root.
aRoot = aRoot.slice(0, index);
if (aRoot.match(/^([^\/]+:\/)?\/*$/)) {
return aPath;
}
++level;
}
// Make sure we add a "../" for each component we removed from the root.
return Array(level + 1).join("../") + aPath.substr(aRoot.length + 1);
}
exports.relative = relative;
var supportsNullProto = (function () {
var obj = Object.create(null);
return !('__proto__' in obj);
}());
function identity (s) {
return s;
}
/**
* Because behavior goes wacky when you set `__proto__` on objects, we
* have to prefix all the strings in our set with an arbitrary character.
*
* See https://github.com/mozilla/source-map/pull/31 and
* https://github.com/mozilla/source-map/issues/30
*
* @param String aStr
*/
function toSetString(aStr) {
if (isProtoString(aStr)) {
return '$' + aStr;
}
return aStr;
}
exports.toSetString = supportsNullProto ? identity : toSetString;
function fromSetString(aStr) {
if (isProtoString(aStr)) {
return aStr.slice(1);
}
return aStr;
}
exports.fromSetString = supportsNullProto ? identity : fromSetString;
function isProtoString(s) {
if (!s) {
return false;
}
var length = s.length;
if (length < 9 /* "__proto__".length */) {
return false;
}
if (s.charCodeAt(length - 1) !== 95 /* '_' */ ||
s.charCodeAt(length - 2) !== 95 /* '_' */ ||
s.charCodeAt(length - 3) !== 111 /* 'o' */ ||
s.charCodeAt(length - 4) !== 116 /* 't' */ ||
s.charCodeAt(length - 5) !== 111 /* 'o' */ ||
s.charCodeAt(length - 6) !== 114 /* 'r' */ ||
s.charCodeAt(length - 7) !== 112 /* 'p' */ ||
s.charCodeAt(length - 8) !== 95 /* '_' */ ||
s.charCodeAt(length - 9) !== 95 /* '_' */) {
return false;
}
for (var i = length - 10; i >= 0; i--) {
if (s.charCodeAt(i) !== 36 /* '$' */) {
return false;
}
}
return true;
}
/**
* Comparator between two mappings where the original positions are compared.
*
* Optionally pass in `true` as `onlyCompareGenerated` to consider two
* mappings with the same original source/line/column, but different generated
* line and column the same. Useful when searching for a mapping with a
* stubbed out mapping.
*/
function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
var cmp = strcmp(mappingA.source, mappingB.source);
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.originalLine - mappingB.originalLine;
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.originalColumn - mappingB.originalColumn;
if (cmp !== 0 || onlyCompareOriginal) {
return cmp;
}
cmp = mappingA.generatedColumn - mappingB.generatedColumn;
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.generatedLine - mappingB.generatedLine;
if (cmp !== 0) {
return cmp;
}
return strcmp(mappingA.name, mappingB.name);
}
exports.compareByOriginalPositions = compareByOriginalPositions;
/**
* Comparator between two mappings with deflated source and name indices where
* the generated positions are compared.
*
* Optionally pass in `true` as `onlyCompareGenerated` to consider two
* mappings with the same generated line and column, but different
* source/name/original line and column the same. Useful when searching for a
* mapping with a stubbed out mapping.
*/
function compareByGeneratedPositionsDeflated(mappingA, mappingB, onlyCompareGenerated) {
var cmp = mappingA.generatedLine - mappingB.generatedLine;
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.generatedColumn - mappingB.generatedColumn;
if (cmp !== 0 || onlyCompareGenerated) {
return cmp;
}
cmp = strcmp(mappingA.source, mappingB.source);
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.originalLine - mappingB.originalLine;
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.originalColumn - mappingB.originalColumn;
if (cmp !== 0) {
return cmp;
}
return strcmp(mappingA.name, mappingB.name);
}
exports.compareByGeneratedPositionsDeflated = compareByGeneratedPositionsDeflated;
function strcmp(aStr1, aStr2) {
if (aStr1 === aStr2) {
return 0;
}
if (aStr1 === null) {
return 1; // aStr2 !== null
}
if (aStr2 === null) {
return -1; // aStr1 !== null
}
if (aStr1 > aStr2) {
return 1;
}
return -1;
}
/**
* Comparator between two mappings with inflated source and name strings where
* the generated positions are compared.
*/
function compareByGeneratedPositionsInflated(mappingA, mappingB) {
var cmp = mappingA.generatedLine - mappingB.generatedLine;
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.generatedColumn - mappingB.generatedColumn;
if (cmp !== 0) {
return cmp;
}
cmp = strcmp(mappingA.source, mappingB.source);
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.originalLine - mappingB.originalLine;
if (cmp !== 0) {
return cmp;
}
cmp = mappingA.originalColumn - mappingB.originalColumn;
if (cmp !== 0) {
return cmp;
}
return strcmp(mappingA.name, mappingB.name);
}
exports.compareByGeneratedPositionsInflated = compareByGeneratedPositionsInflated;
/**
* Strip any JSON XSSI avoidance prefix from the string (as documented
* in the source maps specification), and then parse the string as
* JSON.
*/
function parseSourceMapInput(str) {
return JSON.parse(str.replace(/^\)]}'[^\n]*\n/, ''));
}
exports.parseSourceMapInput = parseSourceMapInput;
/**
* Compute the URL of a source given the the source root, the source's
* URL, and the source map's URL.
*/
function computeSourceURL(sourceRoot, sourceURL, sourceMapURL) {
sourceURL = sourceURL || '';
if (sourceRoot) {
// This follows what Chrome does.
if (sourceRoot[sourceRoot.length - 1] !== '/' && sourceURL[0] !== '/') {
sourceRoot += '/';
}
// The spec says:
// Line 4: An optional source root, useful for relocating source
// files on a server or removing repeated values in the
// “sources” entry. This value is prepended to the individual
// entries in the “source” field.
sourceURL = sourceRoot + sourceURL;
}
// Historically, SourceMapConsumer did not take the sourceMapURL as
// a parameter. This mode is still somewhat supported, which is why
// this code block is conditional. However, it's preferable to pass
// the source map URL to SourceMapConsumer, so that this function
// can implement the source URL resolution algorithm as outlined in
// the spec. This block is basically the equivalent of:
// new URL(sourceURL, sourceMapURL).toString()
// ... except it avoids using URL, which wasn't available in the
// older releases of node still supported by this library.
//
// The spec says:
// If the sources are not absolute URLs after prepending of the
// “sourceRoot”, the sources are resolved relative to the
// SourceMap (like resolving script src in a html document).
if (sourceMapURL) {
var parsed = urlParse(sourceMapURL);
if (!parsed) {
throw new Error("sourceMapURL could not be parsed");
}
if (parsed.path) {
// Strip the last path component, but keep the "/".
var index = parsed.path.lastIndexOf('/');
if (index >= 0) {
parsed.path = parsed.path.substring(0, index + 1);
}
}
sourceURL = join(urlGenerate(parsed), sourceURL);
}
return normalize(sourceURL);
}
exports.computeSourceURL = computeSourceURL;
});
var util_1 = util.getArg;
var util_2 = util.urlParse;
var util_3 = util.urlGenerate;
var util_4 = util.normalize;
var util_5 = util.join;
var util_6 = util.isAbsolute;
var util_7 = util.relative;
var util_8 = util.toSetString;
var util_9 = util.fromSetString;
var util_10 = util.compareByOriginalPositions;
var util_11 = util.compareByGeneratedPositionsDeflated;
var util_12 = util.compareByGeneratedPositionsInflated;
var util_13 = util.parseSourceMapInput;
var util_14 = util.computeSourceURL;
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
* Copyright 2011 Mozilla Foundation and contributors
* Licensed under the New BSD license. See LICENSE or:
* http://opensource.org/licenses/BSD-3-Clause
*/
var has = Object.prototype.hasOwnProperty;
var hasNativeMap = typeof Map !== "undefined";
/**
* A data structure which is a combination of an array and a set. Adding a new
* member is O(1), testing for membership is O(1), and finding the index of an
* element is O(1). Removing elements from the set is not supported. Only
* strings are supported for membership.
*/
function ArraySet() {
this._array = [];
this._set = hasNativeMap ? new Map() : Object.create(null);
}
/**
* Static method for creating ArraySet instances from an existing array.
*/
ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
var set = new ArraySet();
for (var i = 0, len = aArray.length; i < len; i++) {
set.add(aArray[i], aAllowDuplicates);
}
return set;
};
/**
* Return how many unique items are in this ArraySet. If duplicates have been
* added, than those do not count towards the size.
*
* @returns Number
*/
ArraySet.prototype.size = function ArraySet_size() {
return hasNativeMap ? this._set.size : Object.getOwnPropertyNames(this._set).length;
};
/**
* Add the given string to this set.
*
* @param String aStr
*/
ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
var sStr = hasNativeMap ? aStr : util.toSetString(aStr);
var isDuplicate = hasNativeMap ? this.has(aStr) : has.call(this._set, sStr);
var idx = this._array.length;
if (!isDuplicate || aAllowDuplicates) {
this._array.push(aStr);
}
if (!isDuplicate) {
if (hasNativeMap) {
this._set.set(aStr, idx);
} else {
this._set[sStr] = idx;
}
}
};
/**
* Is the given string a member of this set?
*
* @param String aStr
*/
ArraySet.prototype.has = function ArraySet_has(aStr) {
if (hasNativeMap) {
return this._set.has(aStr);
} else {
var sStr = util.toSetString(aStr);
return has.call(this._set, sStr);
}
};
/**
* What is the index of the given string in the array?
*
* @param String aStr
*/
ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
if (hasNativeMap) {
var idx = this._set.get(aStr);
if (idx >= 0) {
return idx;
}
} else {
var sStr = util.toSetString(aStr);
if (has.call(this._set, sStr)) {
return this._set[sStr];
}
}
throw new Error('"' + aStr + '" is not in the set.');
};
/**
* What is the element at the given index?
*
* @param Number aIdx
*/
ArraySet.prototype.at = function ArraySet_at(aIdx) {
if (aIdx >= 0 && aIdx < this._array.length) {
return this._array[aIdx];
}
throw new Error('No element indexed by ' + aIdx);
};
/**
* Returns the array representation of this set (which has the proper indices
* indicated by indexOf). Note that this is a copy of the internal array used
* for storing the members so that no one can mess with internal state.
*/
ArraySet.prototype.toArray = function ArraySet_toArray() {
return this._array.slice();
};
var ArraySet_1 = ArraySet;
var arraySet = {
ArraySet: ArraySet_1
};
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
* Copyright 2014 Mozilla Foundation and contributors
* Licensed under the New BSD license. See LICENSE or:
* http://opensource.org/licenses/BSD-3-Clause
*/
/**
* Determine whether mappingB is after mappingA with respect to generated
* position.
*/
function generatedPositionAfter(mappingA, mappingB) {
// Optimized for most common case
var lineA = mappingA.generatedLine;
var lineB = mappingB.generatedLine;
var columnA = mappingA.generatedColumn;
var columnB = mappingB.generatedColumn;
return lineB > lineA || lineB == lineA && columnB >= columnA ||
util.compareByGeneratedPositionsInflated(mappingA, mappingB) <= 0;
}
/**
* A data structure to provide a sorted view of accumulated mappings in a
* performance conscious manner. It trades a neglibable overhead in general
* case for a large speedup in case of mappings being added in order.
*/
function MappingList() {
this._array = [];
this._sorted = true;
// Serves as infimum
this._last = {generatedLine: -1, generatedColumn: 0};
}
/**
* Iterate through internal items. This method takes the same arguments that
* `Array.prototype.forEach` takes.
*
* NOTE: The order of the mappings is NOT guaranteed.
*/
MappingList.prototype.unsortedForEach =
function MappingList_forEach(aCallback, aThisArg) {
this._array.forEach(aCallback, aThisArg);
};
/**
* Add the given source mapping.
*
* @param Object aMapping
*/
MappingList.prototype.add = function MappingList_add(aMapping) {
if (generatedPositionAfter(this._last, aMapping)) {
this._last = aMapping;
this._array.push(aMapping);
} else {
this._sorted = false;
this._array.push(aMapping);
}
};
/**
* Returns the flat, sorted array of mappings. The mappings are sorted by
* generated position.
*
* WARNING: This method returns internal data without copying, for
* performance. The return value must NOT be mutated, and should be treated as
* an immutable borrow. If you want to take ownership, you must make your own
* copy.
*/
MappingList.prototype.toArray = function MappingList_toArray() {
if (!this._sorted) {
this._array.sort(util.compareByGeneratedPositionsInflated);
this._sorted = true;
}
return this._array;
};
var MappingList_1 = MappingList;
var mappingList = {
MappingList: MappingList_1
};
/* -*- Mode: js; js-indent-level: 2; -*- */
/*
* Copyright 2011 Mozilla Foundation and contributors
* Licensed under the New BSD license. See LICENSE or:
* http://opensource.org/licenses/BSD-3-Clause
*/
var ArraySet$1 = arraySet.ArraySet;
var MappingList$1 = mappingList.MappingList;
/**
* An instance of the SourceMapGenerator represents a source map which is
* being built incrementally. You may pass an object with the following
* properties:
*
* - file: The filename of the generated source.
* - sourceRoot: A root for all relative URLs in this source map.
*/
function SourceMapGenerator(aArgs) {
if (!aArgs) {
aArgs = {};
}
this._file = util.getArg(aArgs, 'file', null);
this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
this._skipValidation = util.getArg(aArgs, 'skipValidation', false);
this._sources = new ArraySet$1();
this._names = new ArraySet$1();
this._mappings = new MappingList$1();
this._sourcesContents = null;
}
SourceMapGenerator.prototype._version = 3;
/**
* Creates a new SourceMapGenerator based on a SourceMapConsumer
*
* @param aSourceMapConsumer The SourceMap.
*/
SourceMapGenerator.fromSourceMap =
function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
var sourceRoot = aSourceMapConsumer.sourceRoot;
var generator = new SourceMapGenerator({
file: aSourceMapConsumer.file,
sourceRoot: sourceRoot
});
aSourceMapConsumer.eachMapping(function (mapping) {
var newMapping = {
generated: {
line: mapping.generatedLine,
column: mapping.generatedColumn
}
};
if (mapping.source != null) {
newMapping.source = mapping.source;
if (sourceRoot != null) {
newMapping.source = util.relative(sourceRoot, newMapping.source);
}
newMapping.original = {
line: mapping.originalLine,
column: mapping.originalColumn
};
if (mapping.name != null) {
newMapping.name = mapping.name;
}
}
generator.addMapping(newMapping);
});
aSourceMapConsumer.sources.forEach(function (sourceFile) {
var sourceRelative = sourceFile;
if (sourceRoot !== null) {
sourceRelative = util.relative(sourceRoot, sourceFile);
}
if (!generator._sources.has(sourceRelative)) {
generator._sources.add(sourceRelative);
}
var content = aSourceMapConsumer.sourceContentFor(sourceFile);
if (content != null) {
generator.setSourceContent(sourceFile, content);
}
});
return generator;
};
/**
* Add a single mapping from original source line and column to the generated
* source's line and column for this source map being created. The mapping
* object should have the following properties:
*
* - generated: An object with the generated line and column positions.
* - original: An object with the original line and column positions.
* - source: The original source file (relative to the sourceRoot).
* - name: An optional original token name for this mapping.
*/
SourceMapGenerator.prototype.addMapping =
function SourceMapGenerator_addMapping(aArgs) {
var generated = util.getArg(aArgs, 'generated');
var original = util.getArg(aArgs, 'original', null);
var source = util.getArg(aArgs, 'source', null);
var name = util.getArg(aArgs, 'name', null);
if (!this._skipValidation) {
this._validateMapping(generated, original, source, name);
}
if (source != null) {
source = String(source);
if (!this._sources.has(source)) {
this._sources.add(source);
}
}
if (name != null) {
name = String(name);
if (!this._names.has(name)) {
this._names.add(name);
}
}
this._mappings.add({
generatedLine: generated.line,
generatedColumn: generated.column,
originalLine: original != null && original.line,
originalColumn: original != null && original.column,
source: source,
name: name
});
};
/**
* Set the source content for a source file.
*/
SourceMapGenerator.prototype.setSourceContent =
function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
var source = aSourceFile;
if (this._sourceRoot != null) {
source = util.relative(this._sourceRoot, source);
}
if (aSourceContent != null) {
// Add the source content to the _sourcesContents map.
// Create a new _sourcesContents map if the property is null.
if (!this._sourcesContents) {
this._sourcesContents = Object.create(null);
}
this._sourcesContents[util.toSetString(source)] = aSourceContent;
} else if (this._sourcesContents) {
// Remove the source file from the _sourcesContents map.
// If the _sourcesContents map is empty, set the property to null.
delete this._sourcesContents[util.toSetString(source)];
if (Object.keys(this._sourcesContents).length === 0) {
this._sourcesContents = null;
}
}
};
/**
* Applies the mappings of a sub-source-map for a specific source file to the
* source map being generated. Each mapping to the supplied source file is
* rewritten using the supplied source map. Note: The resolution for the
* resulting mappings is the minimium of this map and the supplied map.
*
* @param aSourceMapConsumer The source map to be applied.
* @param aSourceFile Optional. The filename of the source file.
* If omitted, SourceMapConsumer's file property will be used.
* @param aSourceMapPath Optional. The dirname of the path to the source map
* to be applied. If relative, it is relative to the SourceMapConsumer.
* This parameter is needed when the two source maps aren't in the same
* directory, and the source map to be applied contains relative source
* paths. If so, those relative source paths need to be rewritten
* relative to the SourceMapGenerator.
*/
SourceMapGenerator.prototype.applySourceMap =
function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile, aSourceMapPath) {
var sourceFile = aSourceFile;
// If aSourceFile is omitted, we will use the file property of the SourceMap
if (aSourceFile == null) {
if (aSourceMapConsumer.file == null) {
throw new Error(
'SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, ' +
'or the source map\'s "file" property. Both were omitted.'
);
}
sourceFile = aSourceMapConsumer.file;
}
var sourceRoot = this._sourceRoot;
// Make "sourceFile" relative if an absolute Url is passed.
if (sourceRoot != null) {
sourceFile = util.relative(sourceRoot, sourceFile);
}
// Applying the SourceMap can add and remove items from the sources and
// the names array.
var newSources = new ArraySet$1();
var newNames = new ArraySet$1();
// Find mappings for the "sourceFile"
this._mappings.unsortedForEach(function (mapping) {
if (mapping.source === sourceFile && mapping.originalLine != null) {
// Check if it can be mapped by the source map, then update the mapping.
var original = aSourceMapConsumer.originalPositionFor({
line: mapping.originalLine,
column: mapping.originalColumn
});
if (original.source != null) {
// Copy mapping
mapping.source = original.source;
if (aSourceMapPath != null) {
mapping.source = util.join(aSourceMapPath, mapping.source);
}
if (sourceRoot != null) {
mapping.source = util.relative(sourceRoot, mapping.source);
}
mapping.originalLine = original.line;
mapping.originalColumn = original.column;
if (original.name != null) {
mapping.name = original.name;
}
}
}
var source = mapping.source;
if (source != null && !newSources.has(source)) {
newSources.add(source);
}
var name = mapping.name;
if (name != null && !newNames.has(name)) {
newNames.add(name);
}
}, this);
this._sources = newSources;
this._names = newNames;
// Copy sourcesContents of applied map.
aSourceMapConsumer.sources.forEach(function (sourceFile) {
var content = aSourceMapConsumer.sourceContentFor(sourceFile);
if (content != null) {
if (aSourceMapPath != null) {
sourceFile = util.join(aSourceMapPath, sourceFile);
}
if (sourceRoot != null) {
sourceFile = util.relative(sourceRoot, sourceFile);
}
this.setSourceContent(sourceFile, content);
}
}, this);
};
/**
* A mapping can have one of the three levels of data:
*
* 1. Just the generated position.
* 2. The Generated position, original position, and original source.
* 3. Generated and original position, original source, as well as a name
* token.
*
* To maintain consistency, we validate that any new mapping being added falls
* in to one of these categories.
*/
SourceMapGenerator.prototype._validateMapping =
function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource,
aName) {
// When aOriginal is truthy but has empty values for .line and .column,
// it is most likely a programmer error. In this case we throw a very
// specific error message to try to guide them the right way.
// For example: https://github.com/Polymer/polymer-bundler/pull/519
if (aOriginal && typeof aOriginal.line !== 'number' && typeof aOriginal.column !== 'number') {
throw new Error(
'original.line and original.column are not numbers -- you probably meant to omit ' +
'the original mapping entirely and only map the generated position. If so, pass ' +
'null for the original mapping instead of an object with empty or null values.'
);
}
if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
&& aGenerated.line > 0 && aGenerated.column >= 0
&& !aOriginal && !aSource && !aName) {
// Case 1.
return;
}
else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated
&& aOriginal && 'line' in aOriginal && 'column' in aOriginal
&& aGenerated.line > 0 && aGenerated.column >= 0
&& aOriginal.line > 0 && aOriginal.column >= 0
&& aSource) {
// Cases 2 and 3.
return;
}
else {
throw new Error('Invalid mapping: ' + JSON.stringify({
generated: aGenerated,
source: aSource,
original: aOriginal,
name: aName
}));
}
};
/**
* Serialize the accumulated mappings in to the stream of base 64 VLQs
* specified by the source map format.
*/
SourceMapGenerator.prototype._serializeMappings =
function SourceMapGenerator_serializeMappings() {
var previousGeneratedColumn = 0;
var previousGeneratedLine = 1;
var previousOriginalColumn = 0;
var previousOriginalLine = 0;
var previousName = 0;
var previousSource = 0;
var result = '';
var next;
var mapping;
var nameIdx;
var sourceIdx;
var mappings = this._mappings.toArray();
for (var i = 0, len = mappings.length; i < len; i++) {
mapping = mappings[i];
next = '';
if (mapping.generatedLine !== previousGeneratedLine) {
previousGeneratedColumn = 0;
while (mapping.generatedLine !== previousGeneratedLine) {
next += ';';
previousGeneratedLine++;
}
}
else {
if (i > 0) {
if (!util.compareByGeneratedPositionsInflated(mapping, mappings[i - 1])) {
continue;
}
next += ',';
}
}
next += base64Vlq.encode(mapping.generatedColumn
- previousGeneratedColumn);
previousGeneratedColumn = mapping.generatedColumn;
if (mapping.source != null) {
sourceIdx = this._sources.indexOf(mapping.source);
next += base64Vlq.encode(sourceIdx - previousSource);
previousSource = sourceIdx;
// lines are stored 0-based in SourceMap spec version 3
next += base64Vlq.encode(mapping.originalLine - 1
- previousOriginalLine);
previousOriginalLine = mapping.originalLine - 1;
next += base64Vlq.encode(mapping.originalColumn
- previousOriginalColumn);
previousOriginalColumn = mapping.originalColumn;
if (mapping.name != null) {
nameIdx = this._names.indexOf(mapping.name);
next += base64Vlq.encode(nameIdx - previousName);
previousName = nameIdx;
}
}
result += next;
}
return result;
};
SourceMapGenerator.prototype._generateSourcesContent =
function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
return aSources.map(function (source) {
if (!this._sourcesContents) {
return null;
}
if (aSourceRoot != null) {
source = util.relative(aSourceRoot, source);
}
var key = util.toSetString(source);
return Object.prototype.hasOwnProperty.call(this._sourcesContents, key)
? this._sourcesContents[key]
: null;
}, this);
};
/**
* Externalize the source map.
*/
SourceMapGenerator.prototype.toJSON =
function SourceMapGenerator_toJSON() {
var map = {
version: this._version,
sources: this._sources.toArray(),
names: this._names.toArray(),
mappings: this._serializeMappings()
};
if (this._file != null) {
map.file = this._file;
}
if (this._sourceRoot != null) {
map.sourceRoot = this._sourceRoot;
}
if (this._sourcesContents) {
map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
}
return map;
};
/**
* Render the source map being generated to a string.
*/
SourceMapGenerator.prototype.toString =
function SourceMapGenerator_toString() {
return JSON.stringify(this.toJSON());
};
var SourceMapGenerator_1 = SourceMapGenerator;
var sourceMapGenerator = {
SourceMapGenerator: SourceMapGenerator_1
};
var SourceMapGenerator$1 = sourceMapGenerator.SourceMapGenerator;
var trackNodes = {
Atrule: true,
Selector: true,
Declaration: true
};
var sourceMap = function generateSourceMap(handlers) {
var map = new SourceMapGenerator$1();
var line = 1;
var column = 0;
var generated = {
line: 1,
column: 0
};
var original = {
line: 0, // should be zero to add first mapping
column: 0
};
var sourceMappingActive = false;
var activatedGenerated = {
line: 1,
column: 0
};
var activatedMapping = {
generated: activatedGenerated
};
var handlersNode = handlers.node;
handlers.node = function(node) {
if (node.loc && node.loc.start && trackNodes.hasOwnProperty(node.type)) {
var nodeLine = node.loc.start.line;
var nodeColumn = node.loc.start.column - 1;
if (original.line !== nodeLine ||
original.column !== nodeColumn) {
original.line = nodeLine;
original.column = nodeColumn;
generated.line = line;
generated.column = column;
if (sourceMappingActive) {
sourceMappingActive = false;
if (generated.line !== activatedGenerated.line ||
generated.column !== activatedGenerated.column) {
map.addMapping(activatedMapping);
}
}
sourceMappingActive = true;
map.addMapping({
source: node.loc.source,
original: original,
generated: generated
});
}
}
handlersNode.call(this, node);
if (sourceMappingActive && trackNodes.hasOwnProperty(node.type)) {
activatedGenerated.line = line;
activatedGenerated.column = column;
}
};
var handlersChunk = handlers.chunk;
handlers.chunk = function(chunk) {
for (var i = 0; i < chunk.length; i++) {
if (chunk.charCodeAt(i) === 10) { // \n
line++;
column = 0;
} else {
column++;
}
}
handlersChunk(chunk);
};
var handlersResult = handlers.result;
handlers.result = function() {
if (sourceMappingActive) {
map.addMapping(activatedMapping);
}
return {
css: handlersResult(),
map: map
};
};
return handlers;
};
var hasOwnProperty$3 = Object.prototype.hasOwnProperty;
function processChildren(node, delimeter) {
var list = node.children;
var prev = null;
if (typeof delimeter !== 'function') {
list.forEach(this.node, this);
} else {
list.forEach(function(node) {
if (prev !== null) {
delimeter.call(this, prev);
}
this.node(node);
prev = node;
}, this);
}
}
var create$1 = function createGenerator(config) {
function processNode(node) {
if (hasOwnProperty$3.call(types, node.type)) {
types[node.type].call(this, node);
} else {
throw new Error('Unknown node type: ' + node.type);
}
}
var types = {};
if (config.node) {
for (var name in config.node) {
types[name] = config.node[name].generate;
}
}
return function(node, options) {
var buffer = '';
var handlers = {
children: processChildren,
node: processNode,
chunk: function(chunk) {
buffer += chunk;
},
result: function() {
return buffer;
}
};
if (options) {
if (typeof options.decorator === 'function') {
handlers = options.decorator(handlers);
}
if (options.sourceMap) {
handlers = sourceMap(handlers);
}
}
handlers.node(node);
return handlers.result();
};
};
var create$2 = function createConvertors(walk) {
return {
fromPlainObject: function(ast) {
walk(ast, {
enter: function(node) {
if (node.children && node.children instanceof List_1 === false) {
node.children = new List_1().fromArray(node.children);
}
}
});
return ast;
},
toPlainObject: function(ast) {
walk(ast, {
leave: function(node) {
if (node.children && node.children instanceof List_1) {
node.children = node.children.toArray();
}
}
});
return ast;
}
};
};
var hasOwnProperty$4 = Object.prototype.hasOwnProperty;
var noop$3 = function() {};
function ensureFunction$1(value) {
return typeof value === 'function' ? value : noop$3;
}
function invokeForType(fn, type) {
return function(node, item, list) {
if (node.type === type) {
fn.call(this, node, item, list);
}
};
}
function getWalkersFromStructure(name, nodeType) {
var structure = nodeType.structure;
var walkers = [];
for (var key in structure) {
if (hasOwnProperty$4.call(structure, key) === false) {
continue;
}
var fieldTypes = structure[key];
var walker = {
name: key,
type: false,
nullable: false
};
if (!Array.isArray(structure[key])) {
fieldTypes = [structure[key]];
}
for (var i = 0; i < fieldTypes.length; i++) {
var fieldType = fieldTypes[i];
if (fieldType === null) {
walker.nullable = true;
} else if (typeof fieldType === 'string') {
walker.type = 'node';
} else if (Array.isArray(fieldType)) {
walker.type = 'list';
}
}
if (walker.type) {
walkers.push(walker);
}
}
if (walkers.length) {
return {
context: nodeType.walkContext,
fields: walkers
};
}
return null;
}
function getTypesFromConfig(config) {
var types = {};
for (var name in config.node) {
if (hasOwnProperty$4.call(config.node, name)) {
var nodeType = config.node[name];
if (!nodeType.structure) {
throw new Error('Missed `structure` field in `' + name + '` node type definition');
}
types[name] = getWalkersFromStructure(name, nodeType);
}
}
return types;
}
function createTypeIterator(config, reverse) {
var fields = config.fields.slice();
var contextName = config.context;
var useContext = typeof contextName === 'string';
if (reverse) {
fields.reverse();
}
return function(node, context, walk) {
var prevContextValue;
if (useContext) {
prevContextValue = context[contextName];
context[contextName] = node;
}
for (var i = 0; i < fields.length; i++) {
var field = fields[i];
var ref = node[field.name];
if (!field.nullable || ref) {
if (field.type === 'list') {
if (reverse) {
ref.forEachRight(walk);
} else {
ref.forEach(walk);
}
} else {
walk(ref);
}
}
}
if (useContext) {
context[contextName] = prevContextValue;
}
};
}
function createFastTraveralMap(iterators) {
return {
Atrule: {
StyleSheet: iterators.StyleSheet,
Atrule: iterators.Atrule,
Rule: iterators.Rule,
Block: iterators.Block
},
Rule: {
StyleSheet: iterators.StyleSheet,
Atrule: iterators.Atrule,
Rule: iterators.Rule,
Block: iterators.Block
},
Declaration: {
StyleSheet: iterators.StyleSheet,
Atrule: iterators.Atrule,
Rule: iterators.Rule,
Block: iterators.Block
}
};
}
var create$3 = function createWalker(config) {
var types = getTypesFromConfig(config);
var iteratorsNatural = {};
var iteratorsReverse = {};
for (var name in types) {
if (hasOwnProperty$4.call(types, name) && types[name] !== null) {
iteratorsNatural[name] = createTypeIterator(types[name], false);
iteratorsReverse[name] = createTypeIterator(types[name], true);
}
}
var fastTraversalIteratorsNatural = createFastTraveralMap(iteratorsNatural);
var fastTraversalIteratorsReverse = createFastTraveralMap(iteratorsReverse);
var walk = function(root, options) {
function walkNode(node, item, list) {
enter.call(context, node, item, list);
if (iterators.hasOwnProperty(node.type)) {
iterators[node.type](node, context, walkNode);
}
leave.call(context, node, item, list);
}
var enter = noop$3;
var leave = noop$3;
var iterators = iteratorsNatural;
var context = {
root: root,
stylesheet: null,
atrule: null,
atrulePrelude: null,
rule: null,
selector: null,
block: null,
declaration: null,
function: null
};
if (typeof options === 'function') {
enter = options;
} else if (options) {
enter = ensureFunction$1(options.enter);
leave = ensureFunction$1(options.leave);
if (options.reverse) {
iterators = iteratorsReverse;
}
if (options.visit) {
if (fastTraversalIteratorsNatural.hasOwnProperty(options.visit)) {
iterators = options.reverse
? fastTraversalIteratorsReverse[options.visit]
: fastTraversalIteratorsNatural[options.visit];
} else if (!types.hasOwnProperty(options.visit)) {
throw new Error('Bad value `' + options.visit + '` for `visit` option (should be: ' + Object.keys(types).join(', ') + ')');
}
enter = invokeForType(enter, options.visit);
leave = invokeForType(leave, options.visit);
}
}
if (enter === noop$3 && leave === noop$3) {
throw new Error('Neither `enter` nor `leave` walker handler is set or both aren\'t a function');
}
// swap handlers in reverse mode to invert visit order
if (options.reverse) {
var tmp = enter;
enter = leave;
leave = tmp;
}
walkNode(root);
};
walk.find = function(ast, fn) {
var found = null;
walk(ast, function(node, item, list) {
if (found === null && fn.call(this, node, item, list)) {
found = node;
}
});
return found;
};
walk.findLast = function(ast, fn) {
var found = null;
walk(ast, {
reverse: true,
enter: function(node, item, list) {
if (found === null && fn.call(this, node, item, list)) {
found = node;
}
}
});
return found;
};
walk.findAll = function(ast, fn) {
var found = [];
walk(ast, function(node, item, list) {
if (fn.call(this, node, item, list)) {
found.push(node);
}
});
return found;
};
return walk;
};
var clone = function clone(node) {
var result = {};
for (var key in node) {
var value = node[key];
if (value) {
if (Array.isArray(value) || value instanceof List_1) {
value = value.map(clone);
} else if (value.constructor === Object) {
value = clone(value);
}
}
result[key] = value;
}
return result;
};
var hasOwnProperty$5 = Object.prototype.hasOwnProperty;
var shape = {
generic: true,
types: {},
properties: {},
parseContext: {},
scope: {},
atrule: ['parse'],
pseudo: ['parse'],
node: ['name', 'structure', 'parse', 'generate', 'walkContext']
};
function isObject(value) {
return value && value.constructor === Object;
}
function copy(value) {
if (isObject(value)) {
var res = {};
for (var key in value) {
if (hasOwnProperty$5.call(value, key)) {
res[key] = value[key];
}
}
return res;
} else {
return value;
}
}
function extend(dest, src) {
for (var key in src) {
if (hasOwnProperty$5.call(src, key)) {
if (isObject(dest[key])) {
extend(dest[key], copy(src[key]));
} else {
dest[key] = copy(src[key]);
}
}
}
}
function mix(dest, src, shape) {
for (var key in shape) {
if (hasOwnProperty$5.call(shape, key) === false) {
continue;
}
if (shape[key] === true) {
if (key in src) {
if (hasOwnProperty$5.call(src, key)) {
dest[key] = copy(src[key]);
}
}
} else if (shape[key]) {
if (isObject(shape[key])) {
var res = {};
extend(res, dest[key]);
extend(res, src[key]);
dest[key] = res;
} else if (Array.isArray(shape[key])) {
var res = {};
var innerShape = shape[key].reduce(function(s, k) {
s[k] = true;
return s;
}, {});
for (var name in dest[key]) {
if (hasOwnProperty$5.call(dest[key], name)) {
res[name] = {};
if (dest[key] && dest[key][name]) {
mix(res[name], dest[key][name], innerShape);
}
}
}
for (var name in src[key]) {
if (hasOwnProperty$5.call(src[key], name)) {
if (!res[name]) {
res[name] = {};
}
if (src[key] && src[key][name]) {
mix(res[name], src[key][name], innerShape);
}
}
}
dest[key] = res;
}
}
}
return dest;
}
var mix_1 = function(dest, src) {
return mix(dest, src, shape);
};
function assign(dest, src) {
for (var key in src) {
dest[key] = src[key];
}
return dest;
}
function createSyntax(config) {
var parse = create(config);
var walk = create$3(config);
var generate = create$1(config);
var convert = create$2(walk);
var syntax = {
List: List_1,
SyntaxError: _SyntaxError,
TokenStream: TokenStream_1,
Lexer: Lexer_1,
vendorPrefix: names.vendorPrefix,
keyword: names.keyword,
property: names.property,
isCustomProperty: names.isCustomProperty,
definitionSyntax: definitionSyntax,
lexer: null,
createLexer: function(config) {
return new Lexer_1(config, syntax, syntax.lexer.structure);
},
tokenize: tokenizer,
parse: parse,
walk: walk,
generate: generate,
find: walk.find,
findLast: walk.findLast,
findAll: walk.findAll,
clone: clone,
fromPlainObject: convert.fromPlainObject,
toPlainObject: convert.toPlainObject,
createSyntax: function(config) {
return createSyntax(mix_1({}, config));
},
fork: function(extension) {
var base = mix_1({}, config); // copy of config
return createSyntax(
typeof extension === 'function'
? extension(base, assign)
: mix_1(base, extension)
);
}
};
syntax.lexer = new Lexer_1({
generic: true,
types: config.types,
properties: config.properties,
node: config.node
}, syntax);
return syntax;
}
var create_1 = function(config) {
return createSyntax(mix_1({}, config));
};
var create$4 = {
create: create_1
};
var generic$1 = true;
var types = {
"absolute-size": "xx-small|x-small|small|medium|large|x-large|xx-large",
"alpha-value": "<number>|<percentage>",
"angle-percentage": "<angle>|<percentage>",
"angular-color-hint": "<angle-percentage>",
"angular-color-stop": "<color>&&<color-stop-angle>?",
"angular-color-stop-list": "[<angular-color-stop> [, <angular-color-hint>]?]# , <angular-color-stop>",
"animateable-feature": "scroll-position|contents|<custom-ident>",
attachment: "scroll|fixed|local",
"attr()": "attr( <attr-name> <type-or-unit>? [, <attr-fallback>]? )",
"attr-matcher": "['~'|'|'|'^'|'$'|'*']? '='",
"attr-modifier": "i|s",
"attribute-selector": "'[' <wq-name> ']'|'[' <wq-name> <attr-matcher> [<string-token>|<ident-token>] <attr-modifier>? ']'",
"auto-repeat": "repeat( [auto-fill|auto-fit] , [<line-names>? <fixed-size>]+ <line-names>? )",
"auto-track-list": "[<line-names>? [<fixed-size>|<fixed-repeat>]]* <line-names>? <auto-repeat> [<line-names>? [<fixed-size>|<fixed-repeat>]]* <line-names>?",
"baseline-position": "[first|last]? baseline",
"basic-shape": "<inset()>|<circle()>|<ellipse()>|<polygon()>",
"bg-image": "none|<image>",
"bg-layer": "<bg-image>||<bg-position> [/ <bg-size>]?||<repeat-style>||<attachment>||<box>||<box>",
"bg-position": "[[left|center|right|top|bottom|<length-percentage>]|[left|center|right|<length-percentage>] [top|center|bottom|<length-percentage>]|[center|[left|right] <length-percentage>?]&&[center|[top|bottom] <length-percentage>?]]",
"bg-size": "[<length-percentage>|auto]{1,2}|cover|contain",
"blur()": "blur( <length> )",
"blend-mode": "normal|multiply|screen|overlay|darken|lighten|color-dodge|color-burn|hard-light|soft-light|difference|exclusion|hue|saturation|color|luminosity",
box: "border-box|padding-box|content-box",
"brightness()": "brightness( <number-percentage> )",
"calc()": "calc( <calc-sum> )",
"calc-sum": "<calc-product> [['+'|'-'] <calc-product>]*",
"calc-product": "<calc-value> ['*' <calc-value>|'/' <number>]*",
"calc-value": "<number>|<dimension>|<percentage>|( <calc-sum> )",
"cf-final-image": "<image>|<color>",
"cf-mixing-image": "<percentage>?&&<image>",
"circle()": "circle( [<shape-radius>]? [at <position>]? )",
"clamp()": "clamp( <calc-sum>#{3} )",
"class-selector": "'.' <ident-token>",
"clip-source": "<url>",
color: "<rgb()>|<rgba()>|<hsl()>|<hsla()>|<hex-color>|<named-color>|currentcolor|<deprecated-system-color>",
"color-stop": "<color-stop-length>|<color-stop-angle>",
"color-stop-angle": "<angle-percentage>{1,2}",
"color-stop-length": "<length-percentage>{1,2}",
"color-stop-list": "[<linear-color-stop> [, <linear-color-hint>]?]# , <linear-color-stop>",
combinator: "'>'|'+'|'~'|['||']",
"common-lig-values": "[common-ligatures|no-common-ligatures]",
compat: "searchfield|textarea|push-button|button-bevel|slider-horizontal|checkbox|radio|square-button|menulist|menulist-button|listbox|meter|progress-bar",
"composite-style": "clear|copy|source-over|source-in|source-out|source-atop|destination-over|destination-in|destination-out|destination-atop|xor",
"compositing-operator": "add|subtract|intersect|exclude",
"compound-selector": "[<type-selector>? <subclass-selector>* [<pseudo-element-selector> <pseudo-class-selector>*]*]!",
"compound-selector-list": "<compound-selector>#",
"complex-selector": "<compound-selector> [<combinator>? <compound-selector>]*",
"complex-selector-list": "<complex-selector>#",
"conic-gradient()": "conic-gradient( [from <angle>]? [at <position>]? , <angular-color-stop-list> )",
"contextual-alt-values": "[contextual|no-contextual]",
"content-distribution": "space-between|space-around|space-evenly|stretch",
"content-list": "[<string>|contents|<url>|<quote>|<attr()>|counter( <ident> , <'list-style-type'>? )]+",
"content-position": "center|start|end|flex-start|flex-end",
"content-replacement": "<image>",
"contrast()": "contrast( [<number-percentage>] )",
"counter()": "counter( <custom-ident> , [<counter-style>|none]? )",
"counter-style": "<counter-style-name>|symbols( )",
"counter-style-name": "<custom-ident>",
"counters()": "counters( <custom-ident> , <string> , [<counter-style>|none]? )",
"cross-fade()": "cross-fade( <cf-mixing-image> , <cf-final-image>? )",
"cubic-bezier-timing-function": "ease|ease-in|ease-out|ease-in-out|cubic-bezier( <number> , <number> , <number> , <number> )",
"deprecated-system-color": "ActiveBorder|ActiveCaption|AppWorkspace|Background|ButtonFace|ButtonHighlight|ButtonShadow|ButtonText|CaptionText|GrayText|Highlight|HighlightText|InactiveBorder|InactiveCaption|InactiveCaptionText|InfoBackground|InfoText|Menu|MenuText|Scrollbar|ThreeDDarkShadow|ThreeDFace|ThreeDHighlight|ThreeDLightShadow|ThreeDShadow|Window|WindowFrame|WindowText",
"discretionary-lig-values": "[discretionary-ligatures|no-discretionary-ligatures]",
"display-box": "contents|none",
"display-inside": "flow|flow-root|table|flex|grid|ruby",
"display-internal": "table-row-group|table-header-group|table-footer-group|table-row|table-cell|table-column-group|table-column|table-caption|ruby-base|ruby-text|ruby-base-container|ruby-text-container",
"display-legacy": "inline-block|inline-list-item|inline-table|inline-flex|inline-grid",
"display-listitem": "<display-outside>?&&[flow|flow-root]?&&list-item",
"display-outside": "block|inline|run-in",
"drop-shadow()": "drop-shadow( <length>{2,3} <color>? )",
"east-asian-variant-values": "[jis78|jis83|jis90|jis04|simplified|traditional]",
"east-asian-width-values": "[full-width|proportional-width]",
"element()": "element( <id-selector> )",
"ellipse()": "ellipse( [<shape-radius>{2}]? [at <position>]? )",
"ending-shape": "circle|ellipse",
"env()": "env( <custom-ident> , <declaration-value>? )",
"explicit-track-list": "[<line-names>? <track-size>]+ <line-names>?",
"family-name": "<string>|<custom-ident>+",
"feature-tag-value": "<string> [<integer>|on|off]?",
"feature-type": "@stylistic|@historical-forms|@styleset|@character-variant|@swash|@ornaments|@annotation",
"feature-value-block": "<feature-type> '{' <feature-value-declaration-list> '}'",
"feature-value-block-list": "<feature-value-block>+",
"feature-value-declaration": "<custom-ident> : <integer>+ ;",
"feature-value-declaration-list": "<feature-value-declaration>",
"feature-value-name": "<custom-ident>",
"fill-rule": "nonzero|evenodd",
"filter-function": "<blur()>|<brightness()>|<contrast()>|<drop-shadow()>|<grayscale()>|<hue-rotate()>|<invert()>|<opacity()>|<saturate()>|<sepia()>",
"filter-function-list": "[<filter-function>|<url>]+",
"final-bg-layer": "<'background-color'>||<bg-image>||<bg-position> [/ <bg-size>]?||<repeat-style>||<attachment>||<box>||<box>",
"fit-content()": "fit-content( [<length>|<percentage>] )",
"fixed-breadth": "<length-percentage>",
"fixed-repeat": "repeat( [<positive-integer>] , [<line-names>? <fixed-size>]+ <line-names>? )",
"fixed-size": "<fixed-breadth>|minmax( <fixed-breadth> , <track-breadth> )|minmax( <inflexible-breadth> , <fixed-breadth> )",
"font-stretch-absolute": "normal|ultra-condensed|extra-condensed|condensed|semi-condensed|semi-expanded|expanded|extra-expanded|ultra-expanded|<percentage>",
"font-variant-css21": "[normal|small-caps]",
"font-weight-absolute": "normal|bold|<number>",
"frequency-percentage": "<frequency>|<percentage>",
"general-enclosed": "[<function-token> <any-value> )]|( <ident> <any-value> )",
"generic-family": "serif|sans-serif|cursive|fantasy|monospace|-apple-system",
"generic-name": "serif|sans-serif|cursive|fantasy|monospace",
"geometry-box": "<shape-box>|fill-box|stroke-box|view-box",
gradient: "<linear-gradient()>|<repeating-linear-gradient()>|<radial-gradient()>|<repeating-radial-gradient()>|<conic-gradient()>|<-legacy-gradient>",
"grayscale()": "grayscale( <number-percentage> )",
"grid-line": "auto|<custom-ident>|[<integer>&&<custom-ident>?]|[span&&[<integer>||<custom-ident>]]",
"historical-lig-values": "[historical-ligatures|no-historical-ligatures]",
"hsl()": "hsl( <hue> <percentage> <percentage> [/ <alpha-value>]? )|hsl( <hue> , <percentage> , <percentage> , <alpha-value>? )",
"hsla()": "hsla( <hue> <percentage> <percentage> [/ <alpha-value>]? )|hsla( <hue> , <percentage> , <percentage> , <alpha-value>? )",
hue: "<number>|<angle>",
"hue-rotate()": "hue-rotate( <angle> )",
image: "<url>|<image()>|<image-set()>|<element()>|<cross-fade()>|<gradient>",
"image()": "image( <image-tags>? [<image-src>? , <color>?]! )",
"image-set()": "image-set( <image-set-option># )",
"image-set-option": "[<image>|<string>] <resolution>",
"image-src": "<url>|<string>",
"image-tags": "ltr|rtl",
"inflexible-breadth": "<length>|<percentage>|min-content|max-content|auto",
"inset()": "inset( <length-percentage>{1,4} [round <'border-radius'>]? )",
"invert()": "invert( <number-percentage> )",
"keyframes-name": "<custom-ident>|<string>",
"keyframe-block": "<keyframe-selector># { <declaration-list> }",
"keyframe-block-list": "<keyframe-block>+",
"keyframe-selector": "from|to|<percentage>",
"leader()": "leader( <leader-type> )",
"leader-type": "dotted|solid|space|<string>",
"length-percentage": "<length>|<percentage>",
"line-names": "'[' <custom-ident>* ']'",
"line-name-list": "[<line-names>|<name-repeat>]+",
"line-style": "none|hidden|dotted|dashed|solid|double|groove|ridge|inset|outset",
"line-width": "<length>|thin|medium|thick",
"linear-color-hint": "<length-percentage>",
"linear-color-stop": "<color> <color-stop-length>?",
"linear-gradient()": "linear-gradient( [<angle>|to <side-or-corner>]? , <color-stop-list> )",
"mask-layer": "<mask-reference>||<position> [/ <bg-size>]?||<repeat-style>||<geometry-box>||[<geometry-box>|no-clip]||<compositing-operator>||<masking-mode>",
"mask-position": "[<length-percentage>|left|center|right] [<length-percentage>|top|center|bottom]?",
"mask-reference": "none|<image>|<mask-source>",
"mask-source": "<url>",
"masking-mode": "alpha|luminance|match-source",
"matrix()": "matrix( <number>#{6} )",
"matrix3d()": "matrix3d( <number>#{16} )",
"max()": "max( <calc-sum># )",
"media-and": "<media-in-parens> [and <media-in-parens>]+",
"media-condition": "<media-not>|<media-and>|<media-or>|<media-in-parens>",
"media-condition-without-or": "<media-not>|<media-and>|<media-in-parens>",
"media-feature": "( [<mf-plain>|<mf-boolean>|<mf-range>] )",
"media-in-parens": "( <media-condition> )|<media-feature>|<general-enclosed>",
"media-not": "not <media-in-parens>",
"media-or": "<media-in-parens> [or <media-in-parens>]+",
"media-query": "<media-condition>|[not|only]? <media-type> [and <media-condition-without-or>]?",
"media-query-list": "<media-query>#",
"media-type": "<ident>",
"mf-boolean": "<mf-name>",
"mf-name": "<ident>",
"mf-plain": "<mf-name> : <mf-value>",
"mf-range": "<mf-name> ['<'|'>']? '='? <mf-value>|<mf-value> ['<'|'>']? '='? <mf-name>|<mf-value> '<' '='? <mf-name> '<' '='? <mf-value>|<mf-value> '>' '='? <mf-name> '>' '='? <mf-value>",
"mf-value": "<number>|<dimension>|<ident>|<ratio>",
"min()": "min( <calc-sum># )",
"minmax()": "minmax( [<length>|<percentage>|<flex>|min-content|max-content|auto] , [<length>|<percentage>|<flex>|min-content|max-content|auto] )",
"named-color": "transparent|aliceblue|antiquewhite|aqua|aquamarine|azure|beige|bisque|black|blanchedalmond|blue|blueviolet|brown|burlywood|cadetblue|chartreuse|chocolate|coral|cornflowerblue|cornsilk|crimson|cyan|darkblue|darkcyan|darkgoldenrod|darkgray|darkgreen|darkgrey|darkkhaki|darkmagenta|darkolivegreen|darkorange|darkorchid|darkred|darksalmon|darkseagreen|darkslateblue|darkslategray|darkslategrey|darkturquoise|darkviolet|deeppink|deepskyblue|dimgray|dimgrey|dodgerblue|firebrick|floralwhite|forestgreen|fuchsia|gainsboro|ghostwhite|gold|goldenrod|gray|green|greenyellow|grey|honeydew|hotpink|indianred|indigo|ivory|khaki|lavender|lavenderblush|lawngreen|lemonchiffon|lightblue|lightcoral|lightcyan|lightgoldenrodyellow|lightgray|lightgreen|lightgrey|lightpink|lightsalmon|lightseagreen|lightskyblue|lightslategray|lightslategrey|lightsteelblue|lightyellow|lime|limegreen|linen|magenta|maroon|mediumaquamarine|mediumblue|mediumorchid|mediumpurple|mediumseagreen|mediumslateblue|mediumspringgreen|mediumturquoise|mediumvioletred|midnightblue|mintcream|mistyrose|moccasin|navajowhite|navy|oldlace|olive|olivedrab|orange|orangered|orchid|palegoldenrod|palegreen|paleturquoise|palevioletred|papayawhip|peachpuff|peru|pink|plum|powderblue|purple|rebeccapurple|red|rosybrown|royalblue|saddlebrown|salmon|sandybrown|seagreen|seashell|sienna|silver|skyblue|slateblue|slategray|slategrey|snow|springgreen|steelblue|tan|teal|thistle|tomato|turquoise|violet|wheat|white|whitesmoke|yellow|yellowgreen|<-non-standard-color>",
"namespace-prefix": "<ident>",
"ns-prefix": "[<ident-token>|'*']? '|'",
"number-percentage": "<number>|<percentage>",
"numeric-figure-values": "[lining-nums|oldstyle-nums]",
"numeric-fraction-values": "[diagonal-fractions|stacked-fractions]",
"numeric-spacing-values": "[proportional-nums|tabular-nums]",
nth: "<an-plus-b>|even|odd",
"opacity()": "opacity( [<number-percentage>] )",
"overflow-position": "unsafe|safe",
"outline-radius": "<length>|<percentage>",
"page-body": "<declaration>? [; <page-body>]?|<page-margin-box> <page-body>",
"page-margin-box": "<page-margin-box-type> '{' <declaration-list> '}'",
"page-margin-box-type": "@top-left-corner|@top-left|@top-center|@top-right|@top-right-corner|@bottom-left-corner|@bottom-left|@bottom-center|@bottom-right|@bottom-right-corner|@left-top|@left-middle|@left-bottom|@right-top|@right-middle|@right-bottom",
"page-selector-list": "[<page-selector>#]?",
"page-selector": "<pseudo-page>+|<ident> <pseudo-page>*",
"perspective()": "perspective( <length> )",
"polygon()": "polygon( <fill-rule>? , [<length-percentage> <length-percentage>]# )",
position: "[[left|center|right]||[top|center|bottom]|[left|center|right|<length-percentage>] [top|center|bottom|<length-percentage>]?|[[left|right] <length-percentage>]&&[[top|bottom] <length-percentage>]]",
"pseudo-class-selector": "':' <ident-token>|':' <function-token> <any-value> ')'",
"pseudo-element-selector": "':' <pseudo-class-selector>",
"pseudo-page": ": [left|right|first|blank]",
quote: "open-quote|close-quote|no-open-quote|no-close-quote",
"radial-gradient()": "radial-gradient( [<ending-shape>||<size>]? [at <position>]? , <color-stop-list> )",
"relative-selector": "<combinator>? <complex-selector>",
"relative-selector-list": "<relative-selector>#",
"relative-size": "larger|smaller",
"repeat-style": "repeat-x|repeat-y|[repeat|space|round|no-repeat]{1,2}",
"repeating-linear-gradient()": "repeating-linear-gradient( [<angle>|to <side-or-corner>]? , <color-stop-list> )",
"repeating-radial-gradient()": "repeating-radial-gradient( [<ending-shape>||<size>]? [at <position>]? , <color-stop-list> )",
"rgb()": "rgb( <percentage>{3} [/ <alpha-value>]? )|rgb( <number>{3} [/ <alpha-value>]? )|rgb( <percentage>#{3} , <alpha-value>? )|rgb( <number>#{3} , <alpha-value>? )",
"rgba()": "rgba( <percentage>{3} [/ <alpha-value>]? )|rgba( <number>{3} [/ <alpha-value>]? )|rgba( <percentage>#{3} , <alpha-value>? )|rgba( <number>#{3} , <alpha-value>? )",
"rotate()": "rotate( [<angle>|<zero>] )",
"rotate3d()": "rotate3d( <number> , <number> , <number> , [<angle>|<zero>] )",
"rotateX()": "rotateX( [<angle>|<zero>] )",
"rotateY()": "rotateY( [<angle>|<zero>] )",
"rotateZ()": "rotateZ( [<angle>|<zero>] )",
"saturate()": "saturate( <number-percentage> )",
"scale()": "scale( <number> , <number>? )",
"scale3d()": "scale3d( <number> , <number> , <number> )",
"scaleX()": "scaleX( <number> )",
"scaleY()": "scaleY( <number> )",
"scaleZ()": "scaleZ( <number> )",
"self-position": "center|start|end|self-start|self-end|flex-start|flex-end",
"shape-radius": "<length-percentage>|closest-side|farthest-side",
"skew()": "skew( [<angle>|<zero>] , [<angle>|<zero>]? )",
"skewX()": "skewX( [<angle>|<zero>] )",
"skewY()": "skewY( [<angle>|<zero>] )",
"sepia()": "sepia( <number-percentage> )",
shadow: "inset?&&<length>{2,4}&&<color>?",
"shadow-t": "[<length>{2,3}&&<color>?]",
shape: "rect( <top> , <right> , <bottom> , <left> )|rect( <top> <right> <bottom> <left> )",
"shape-box": "<box>|margin-box",
"side-or-corner": "[left|right]||[top|bottom]",
"single-animation": "<time>||<timing-function>||<time>||<single-animation-iteration-count>||<single-animation-direction>||<single-animation-fill-mode>||<single-animation-play-state>||[none|<keyframes-name>]",
"single-animation-direction": "normal|reverse|alternate|alternate-reverse",
"single-animation-fill-mode": "none|forwards|backwards|both",
"single-animation-iteration-count": "infinite|<number>",
"single-animation-play-state": "running|paused",
"single-transition": "[none|<single-transition-property>]||<time>||<timing-function>||<time>",
"single-transition-property": "all|<custom-ident>",
size: "closest-side|farthest-side|closest-corner|farthest-corner|<length>|<length-percentage>{2}",
"step-position": "jump-start|jump-end|jump-none|jump-both|start|end",
"step-timing-function": "step-start|step-end|steps( <integer> [, <step-position>]? )",
"subclass-selector": "<id-selector>|<class-selector>|<attribute-selector>|<pseudo-class-selector>",
"supports-condition": "not <supports-in-parens>|<supports-in-parens> [and <supports-in-parens>]*|<supports-in-parens> [or <supports-in-parens>]*",
"supports-in-parens": "( <supports-condition> )|<supports-feature>|<general-enclosed>",
"supports-feature": "<supports-decl>|<supports-selector-fn>",
"supports-decl": "( <declaration> )",
"supports-selector-fn": "selector( <complex-selector> )",
symbol: "<string>|<image>|<custom-ident>",
target: "<target-counter()>|<target-counters()>|<target-text()>",
"target-counter()": "target-counter( [<string>|<url>] , <custom-ident> , <counter-style>? )",
"target-counters()": "target-counters( [<string>|<url>] , <custom-ident> , <string> , <counter-style>? )",
"target-text()": "target-text( [<string>|<url>] , [content|before|after|first-letter]? )",
"time-percentage": "<time>|<percentage>",
"timing-function": "linear|<cubic-bezier-timing-function>|<step-timing-function>",
"track-breadth": "<length-percentage>|<flex>|min-content|max-content|auto",
"track-list": "[<line-names>? [<track-size>|<track-repeat>]]+ <line-names>?",
"track-repeat": "repeat( [<positive-integer>] , [<line-names>? <track-size>]+ <line-names>? )",
"track-size": "<track-breadth>|minmax( <inflexible-breadth> , <track-breadth> )|fit-content( [<length>|<percentage>] )",
"transform-function": "<matrix()>|<translate()>|<translateX()>|<translateY()>|<scale()>|<scaleX()>|<scaleY()>|<rotate()>|<skew()>|<skewX()>|<skewY()>|<matrix3d()>|<translate3d()>|<translateZ()>|<scale3d()>|<scaleZ()>|<rotate3d()>|<rotateX()>|<rotateY()>|<rotateZ()>|<perspective()>",
"transform-list": "<transform-function>+",
"translate()": "translate( <length-percentage> , <length-percentage>? )",
"translate3d()": "translate3d( <length-percentage> , <length-percentage> , <length> )",
"translateX()": "translateX( <length-percentage> )",
"translateY()": "translateY( <length-percentage> )",
"translateZ()": "translateZ( <length> )",
"type-or-unit": "string|color|url|integer|number|length|angle|time|frequency|cap|ch|em|ex|ic|lh|rlh|rem|vb|vi|vw|vh|vmin|vmax|mm|Q|cm|in|pt|pc|px|deg|grad|rad|turn|ms|s|Hz|kHz|%",
"type-selector": "<wq-name>|<ns-prefix>? '*'",
"var()": "var( <custom-property-name> , <declaration-value>? )",
"viewport-length": "auto|<length-percentage>",
"wq-name": "<ns-prefix>? <ident-token>",
"-legacy-gradient": "<-webkit-gradient()>|<-legacy-linear-gradient>|<-legacy-repeating-linear-gradient>|<-legacy-radial-gradient>|<-legacy-repeating-radial-gradient>",
"-legacy-linear-gradient": "-moz-linear-gradient( <-legacy-linear-gradient-arguments> )|-webkit-linear-gradient( <-legacy-linear-gradient-arguments> )|-o-linear-gradient( <-legacy-linear-gradient-arguments> )",
"-legacy-repeating-linear-gradient": "-moz-repeating-linear-gradient( <-legacy-linear-gradient-arguments> )|-webkit-repeating-linear-gradient( <-legacy-linear-gradient-arguments> )|-o-repeating-linear-gradient( <-legacy-linear-gradient-arguments> )",
"-legacy-linear-gradient-arguments": "[<angle>|<side-or-corner>]? , <color-stop-list>",
"-legacy-radial-gradient": "-moz-radial-gradient( <-legacy-radial-gradient-arguments> )|-webkit-radial-gradient( <-legacy-radial-gradient-arguments> )|-o-radial-gradient( <-legacy-radial-gradient-arguments> )",
"-legacy-repeating-radial-gradient": "-moz-repeating-radial-gradient( <-legacy-radial-gradient-arguments> )|-webkit-repeating-radial-gradient( <-legacy-radial-gradient-arguments> )|-o-repeating-radial-gradient( <-legacy-radial-gradient-arguments> )",
"-legacy-radial-gradient-arguments": "[<position> ,]? [[[<-legacy-radial-gradient-shape>||<-legacy-radial-gradient-size>]|[<length>|<percentage>]{2}] ,]? <color-stop-list>",
"-legacy-radial-gradient-size": "closest-side|closest-corner|farthest-side|farthest-corner|contain|cover",
"-legacy-radial-gradient-shape": "circle|ellipse",
"-non-standard-font": "-apple-system-body|-apple-system-headline|-apple-system-subheadline|-apple-system-caption1|-apple-system-caption2|-apple-system-footnote|-apple-system-short-body|-apple-system-short-headline|-apple-system-short-subheadline|-apple-system-short-caption1|-apple-system-short-footnote|-apple-system-tall-body",
"-non-standard-color": "-moz-ButtonDefault|-moz-ButtonHoverFace|-moz-ButtonHoverText|-moz-CellHighlight|-moz-CellHighlightText|-moz-Combobox|-moz-ComboboxText|-moz-Dialog|-moz-DialogText|-moz-dragtargetzone|-moz-EvenTreeRow|-moz-Field|-moz-FieldText|-moz-html-CellHighlight|-moz-html-CellHighlightText|-moz-mac-accentdarkestshadow|-moz-mac-accentdarkshadow|-moz-mac-accentface|-moz-mac-accentlightesthighlight|-moz-mac-accentlightshadow|-moz-mac-accentregularhighlight|-moz-mac-accentregularshadow|-moz-mac-chrome-active|-moz-mac-chrome-inactive|-moz-mac-focusring|-moz-mac-menuselect|-moz-mac-menushadow|-moz-mac-menutextselect|-moz-MenuHover|-moz-MenuHoverText|-moz-MenuBarText|-moz-MenuBarHoverText|-moz-nativehyperlinktext|-moz-OddTreeRow|-moz-win-communicationstext|-moz-win-mediatext|-moz-activehyperlinktext|-moz-default-background-color|-moz-default-color|-moz-hyperlinktext|-moz-visitedhyperlinktext|-webkit-activelink|-webkit-focus-ring-color|-webkit-link|-webkit-text",
"-non-standard-image-rendering": "optimize-contrast|-moz-crisp-edges|-o-crisp-edges|-webkit-optimize-contrast",
"-non-standard-overflow": "-moz-scrollbars-none|-moz-scrollbars-horizontal|-moz-scrollbars-vertical|-moz-hidden-unscrollable",
"-non-standard-width": "min-intrinsic|intrinsic|-moz-min-content|-moz-max-content|-webkit-min-content|-webkit-max-content",
"-webkit-gradient()": "-webkit-gradient( <-webkit-gradient-type> , <-webkit-gradient-point> [, <-webkit-gradient-point>|, <-webkit-gradient-radius> , <-webkit-gradient-point>] [, <-webkit-gradient-radius>]? [, <-webkit-gradient-color-stop>]* )",
"-webkit-gradient-color-stop": "from( <color> )|color-stop( [<number-zero-one>|<percentage>] , <color> )|to( <color> )",
"-webkit-gradient-point": "[left|center|right|<length-percentage>] [top|center|bottom|<length-percentage>]",
"-webkit-gradient-radius": "<length>|<percentage>",
"-webkit-gradient-type": "linear|radial",
"-webkit-mask-box-repeat": "repeat|stretch|round",
"-webkit-mask-clip-style": "border|border-box|padding|padding-box|content|content-box|text",
"-ms-filter-function-list": "<-ms-filter-function>+",
"-ms-filter-function": "<-ms-filter-function-progid>|<-ms-filter-function-legacy>",
"-ms-filter-function-progid": "'progid:' [<ident-token> '.']* [<ident-token>|<function-token> <any-value>? )]",
"-ms-filter-function-legacy": "<ident-token>|<function-token> <any-value>? )",
"-ms-filter": "<string>",
age: "child|young|old",
"attr-name": "<wq-name>",
"attr-fallback": "<any-value>",
"border-radius": "<length-percentage>{1,2}",
bottom: "<length>|auto",
"generic-voice": "[<age>? <gender> <integer>?]",
gender: "male|female|neutral",
left: "<length>|auto",
"mask-image": "<mask-reference>#",
"name-repeat": "repeat( [<positive-integer>|auto-fill] , <line-names>+ )",
paint: "none|<color>|<url> [none|<color>]?|context-fill|context-stroke",
"path()": "path( <string> )",
ratio: "<integer> / <integer>",
right: "<length>|auto",
"svg-length": "<percentage>|<length>|<number>",
"svg-writing-mode": "lr-tb|rl-tb|tb-rl|lr|rl|tb",
top: "<length>|auto",
x: "<number>",
y: "<number>",
declaration: "<ident-token> : <declaration-value>? ['!' important]?",
"declaration-list": "[<declaration>? ';']* <declaration>?",
url: "url( <string> <url-modifier>* )|<url-token>",
"url-modifier": "<ident>|<function-token> <any-value> )",
"number-zero-one": "<number [0,1]>",
"number-one-or-greater": "<number [1,∞]>",
"positive-integer": "<integer [0,∞]>"
};
var properties$1 = {
"--*": "<declaration-value>",
"-ms-accelerator": "false|true",
"-ms-block-progression": "tb|rl|bt|lr",
"-ms-content-zoom-chaining": "none|chained",
"-ms-content-zooming": "none|zoom",
"-ms-content-zoom-limit": "<'-ms-content-zoom-limit-min'> <'-ms-content-zoom-limit-max'>",
"-ms-content-zoom-limit-max": "<percentage>",
"-ms-content-zoom-limit-min": "<percentage>",
"-ms-content-zoom-snap": "<'-ms-content-zoom-snap-type'>||<'-ms-content-zoom-snap-points'>",
"-ms-content-zoom-snap-points": "snapInterval( <percentage> , <percentage> )|snapList( <percentage># )",
"-ms-content-zoom-snap-type": "none|proximity|mandatory",
"-ms-filter": "<string>",
"-ms-flow-from": "[none|<custom-ident>]#",
"-ms-flow-into": "[none|<custom-ident>]#",
"-ms-high-contrast-adjust": "auto|none",
"-ms-hyphenate-limit-chars": "auto|<integer>{1,3}",
"-ms-hyphenate-limit-lines": "no-limit|<integer>",
"-ms-hyphenate-limit-zone": "<percentage>|<length>",
"-ms-ime-align": "auto|after",
"-ms-overflow-style": "auto|none|scrollbar|-ms-autohiding-scrollbar",
"-ms-scrollbar-3dlight-color": "<color>",
"-ms-scrollbar-arrow-color": "<color>",
"-ms-scrollbar-base-color": "<color>",
"-ms-scrollbar-darkshadow-color": "<color>",
"-ms-scrollbar-face-color": "<color>",
"-ms-scrollbar-highlight-color": "<color>",
"-ms-scrollbar-shadow-color": "<color>",
"-ms-scrollbar-track-color": "<color>",
"-ms-scroll-chaining": "chained|none",
"-ms-scroll-limit": "<'-ms-scroll-limit-x-min'> <'-ms-scroll-limit-y-min'> <'-ms-scroll-limit-x-max'> <'-ms-scroll-limit-y-max'>",
"-ms-scroll-limit-x-max": "auto|<length>",
"-ms-scroll-limit-x-min": "<length>",
"-ms-scroll-limit-y-max": "auto|<length>",
"-ms-scroll-limit-y-min": "<length>",
"-ms-scroll-rails": "none|railed",
"-ms-scroll-snap-points-x": "snapInterval( <length-percentage> , <length-percentage> )|snapList( <length-percentage># )",
"-ms-scroll-snap-points-y": "snapInterval( <length-percentage> , <length-percentage> )|snapList( <length-percentage># )",
"-ms-scroll-snap-type": "none|proximity|mandatory",
"-ms-scroll-snap-x": "<'-ms-scroll-snap-type'> <'-ms-scroll-snap-points-x'>",
"-ms-scroll-snap-y": "<'-ms-scroll-snap-type'> <'-ms-scroll-snap-points-y'>",
"-ms-scroll-translation": "none|vertical-to-horizontal",
"-ms-text-autospace": "none|ideograph-alpha|ideograph-numeric|ideograph-parenthesis|ideograph-space",
"-ms-touch-select": "grippers|none",
"-ms-user-select": "none|element|text",
"-ms-wrap-flow": "auto|both|start|end|maximum|clear",
"-ms-wrap-margin": "<length>",
"-ms-wrap-through": "wrap|none",
"-moz-appearance": "none|button|button-arrow-down|button-arrow-next|button-arrow-previous|button-arrow-up|button-bevel|button-focus|caret|checkbox|checkbox-container|checkbox-label|checkmenuitem|dualbutton|groupbox|listbox|listitem|menuarrow|menubar|menucheckbox|menuimage|menuitem|menuitemtext|menulist|menulist-button|menulist-text|menulist-textfield|menupopup|menuradio|menuseparator|meterbar|meterchunk|progressbar|progressbar-vertical|progresschunk|progresschunk-vertical|radio|radio-container|radio-label|radiomenuitem|range|range-thumb|resizer|resizerpanel|scale-horizontal|scalethumbend|scalethumb-horizontal|scalethumbstart|scalethumbtick|scalethumb-vertical|scale-vertical|scrollbarbutton-down|scrollbarbutton-left|scrollbarbutton-right|scrollbarbutton-up|scrollbarthumb-horizontal|scrollbarthumb-vertical|scrollbartrack-horizontal|scrollbartrack-vertical|searchfield|separator|sheet|spinner|spinner-downbutton|spinner-textfield|spinner-upbutton|splitter|statusbar|statusbarpanel|tab|tabpanel|tabpanels|tab-scroll-arrow-back|tab-scroll-arrow-forward|textfield|textfield-multiline|toolbar|toolbarbutton|toolbarbutton-dropdown|toolbargripper|toolbox|tooltip|treeheader|treeheadercell|treeheadersortarrow|treeitem|treeline|treetwisty|treetwistyopen|treeview|-moz-mac-unified-toolbar|-moz-win-borderless-glass|-moz-win-browsertabbar-toolbox|-moz-win-communicationstext|-moz-win-communications-toolbox|-moz-win-exclude-glass|-moz-win-glass|-moz-win-mediatext|-moz-win-media-toolbox|-moz-window-button-box|-moz-window-button-box-maximized|-moz-window-button-close|-moz-window-button-maximize|-moz-window-button-minimize|-moz-window-button-restore|-moz-window-frame-bottom|-moz-window-frame-left|-moz-window-frame-right|-moz-window-titlebar|-moz-window-titlebar-maximized",
"-moz-binding": "<url>|none",
"-moz-border-bottom-colors": "<color>+|none",
"-moz-border-left-colors": "<color>+|none",
"-moz-border-right-colors": "<color>+|none",
"-moz-border-top-colors": "<color>+|none",
"-moz-context-properties": "none|[fill|fill-opacity|stroke|stroke-opacity]#",
"-moz-float-edge": "border-box|content-box|margin-box|padding-box",
"-moz-force-broken-image-icon": "<integer>",
"-moz-image-region": "<shape>|auto",
"-moz-orient": "inline|block|horizontal|vertical",
"-moz-outline-radius": "<outline-radius>{1,4} [/ <outline-radius>{1,4}]?",
"-moz-outline-radius-bottomleft": "<outline-radius>",
"-moz-outline-radius-bottomright": "<outline-radius>",
"-moz-outline-radius-topleft": "<outline-radius>",
"-moz-outline-radius-topright": "<outline-radius>",
"-moz-stack-sizing": "ignore|stretch-to-fit",
"-moz-text-blink": "none|blink",
"-moz-user-focus": "ignore|normal|select-after|select-before|select-menu|select-same|select-all|none",
"-moz-user-input": "auto|none|enabled|disabled",
"-moz-user-modify": "read-only|read-write|write-only",
"-moz-window-dragging": "drag|no-drag",
"-moz-window-shadow": "default|menu|tooltip|sheet|none",
"-webkit-appearance": "none|button|button-bevel|caps-lock-indicator|caret|checkbox|default-button|listbox|listitem|media-fullscreen-button|media-mute-button|media-play-button|media-seek-back-button|media-seek-forward-button|media-slider|media-sliderthumb|menulist|menulist-button|menulist-text|menulist-textfield|push-button|radio|scrollbarbutton-down|scrollbarbutton-left|scrollbarbutton-right|scrollbarbutton-up|scrollbargripper-horizontal|scrollbargripper-vertical|scrollbarthumb-horizontal|scrollbarthumb-vertical|scrollbartrack-horizontal|scrollbartrack-vertical|searchfield|searchfield-cancel-button|searchfield-decoration|searchfield-results-button|searchfield-results-decoration|slider-horizontal|slider-vertical|sliderthumb-horizontal|sliderthumb-vertical|square-button|textarea|textfield",
"-webkit-border-before": "<'border-width'>||<'border-style'>||<'color'>",
"-webkit-border-before-color": "<'color'>",
"-webkit-border-before-style": "<'border-style'>",
"-webkit-border-before-width": "<'border-width'>",
"-webkit-box-reflect": "[above|below|right|left]? <length>? <image>?",
"-webkit-line-clamp": "none|<integer>",
"-webkit-mask": "[<mask-reference>||<position> [/ <bg-size>]?||<repeat-style>||[<box>|border|padding|content|text]||[<box>|border|padding|content]]#",
"-webkit-mask-attachment": "<attachment>#",
"-webkit-mask-clip": "[<box>|border|padding|content|text]#",
"-webkit-mask-composite": "<composite-style>#",
"-webkit-mask-image": "<mask-reference>#",
"-webkit-mask-origin": "[<box>|border|padding|content]#",
"-webkit-mask-position": "<position>#",
"-webkit-mask-position-x": "[<length-percentage>|left|center|right]#",
"-webkit-mask-position-y": "[<length-percentage>|top|center|bottom]#",
"-webkit-mask-repeat": "<repeat-style>#",
"-webkit-mask-repeat-x": "repeat|no-repeat|space|round",
"-webkit-mask-repeat-y": "repeat|no-repeat|space|round",
"-webkit-mask-size": "<bg-size>#",
"-webkit-overflow-scrolling": "auto|touch",
"-webkit-tap-highlight-color": "<color>",
"-webkit-text-fill-color": "<color>",
"-webkit-text-stroke": "<length>||<color>",
"-webkit-text-stroke-color": "<color>",
"-webkit-text-stroke-width": "<length>",
"-webkit-touch-callout": "default|none",
"-webkit-user-modify": "read-only|read-write|read-write-plaintext-only",
"align-content": "normal|<baseline-position>|<content-distribution>|<overflow-position>? <content-position>",
"align-items": "normal|stretch|<baseline-position>|[<overflow-position>? <self-position>]",
"align-self": "auto|normal|stretch|<baseline-position>|<overflow-position>? <self-position>",
all: "initial|inherit|unset|revert",
animation: "<single-animation>#",
"animation-delay": "<time>#",
"animation-direction": "<single-animation-direction>#",
"animation-duration": "<time>#",
"animation-fill-mode": "<single-animation-fill-mode>#",
"animation-iteration-count": "<single-animation-iteration-count>#",
"animation-name": "[none|<keyframes-name>]#",
"animation-play-state": "<single-animation-play-state>#",
"animation-timing-function": "<timing-function>#",
appearance: "none|auto|button|textfield|<compat>",
azimuth: "<angle>|[[left-side|far-left|left|center-left|center|center-right|right|far-right|right-side]||behind]|leftwards|rightwards",
"backdrop-filter": "none|<filter-function-list>",
"backface-visibility": "visible|hidden",
background: "[<bg-layer> ,]* <final-bg-layer>",
"background-attachment": "<attachment>#",
"background-blend-mode": "<blend-mode>#",
"background-clip": "<box>#",
"background-color": "<color>",
"background-image": "<bg-image>#",
"background-origin": "<box>#",
"background-position": "<bg-position>#",
"background-position-x": "[center|[left|right|x-start|x-end]? <length-percentage>?]#",
"background-position-y": "[center|[top|bottom|y-start|y-end]? <length-percentage>?]#",
"background-repeat": "<repeat-style>#",
"background-size": "<bg-size>#",
"block-overflow": "clip|ellipsis|<string>",
"block-size": "<'width'>",
border: "<line-width>||<line-style>||<color>",
"border-block": "<'border-top-width'>||<'border-top-style'>||<'color'>",
"border-block-color": "<'border-top-color'>{1,2}",
"border-block-style": "<'border-top-style'>",
"border-block-width": "<'border-top-width'>",
"border-block-end": "<'border-top-width'>||<'border-top-style'>||<'color'>",
"border-block-end-color": "<'border-top-color'>",
"border-block-end-style": "<'border-top-style'>",
"border-block-end-width": "<'border-top-width'>",
"border-block-start": "<'border-top-width'>||<'border-top-style'>||<'color'>",
"border-block-start-color": "<'border-top-color'>",
"border-block-start-style": "<'border-top-style'>",
"border-block-start-width": "<'border-top-width'>",
"border-bottom": "<line-width>||<line-style>||<color>",
"border-bottom-color": "<'border-top-color'>",
"border-bottom-left-radius": "<length-percentage>{1,2}",
"border-bottom-right-radius": "<length-percentage>{1,2}",
"border-bottom-style": "<line-style>",
"border-bottom-width": "<line-width>",
"border-collapse": "collapse|separate",
"border-color": "<color>{1,4}",
"border-end-end-radius": "<length-percentage>{1,2}",
"border-end-start-radius": "<length-percentage>{1,2}",
"border-image": "<'border-image-source'>||<'border-image-slice'> [/ <'border-image-width'>|/ <'border-image-width'>? / <'border-image-outset'>]?||<'border-image-repeat'>",
"border-image-outset": "[<length>|<number>]{1,4}",
"border-image-repeat": "[stretch|repeat|round|space]{1,2}",
"border-image-slice": "<number-percentage>{1,4}&&fill?",
"border-image-source": "none|<image>",
"border-image-width": "[<length-percentage>|<number>|auto]{1,4}",
"border-inline": "<'border-top-width'>||<'border-top-style'>||<'color'>",
"border-inline-end": "<'border-top-width'>||<'border-top-style'>||<'color'>",
"border-inline-color": "<'border-top-color'>{1,2}",
"border-inline-style": "<'border-top-style'>",
"border-inline-width": "<'border-top-width'>",
"border-inline-end-color": "<'border-top-color'>",
"border-inline-end-style": "<'border-top-style'>",
"border-inline-end-width": "<'border-top-width'>",
"border-inline-start": "<'border-top-width'>||<'border-top-style'>||<'color'>",
"border-inline-start-color": "<'border-top-color'>",
"border-inline-start-style": "<'border-top-style'>",
"border-inline-start-width": "<'border-top-width'>",
"border-left": "<line-width>||<line-style>||<color>",
"border-left-color": "<color>",
"border-left-style": "<line-style>",
"border-left-width": "<line-width>",
"border-radius": "<length-percentage>{1,4} [/ <length-percentage>{1,4}]?",
"border-right": "<line-width>||<line-style>||<color>",
"border-right-color": "<color>",
"border-right-style": "<line-style>",
"border-right-width": "<line-width>",
"border-spacing": "<length> <length>?",
"border-start-end-radius": "<length-percentage>{1,2}",
"border-start-start-radius": "<length-percentage>{1,2}",
"border-style": "<line-style>{1,4}",
"border-top": "<line-width>||<line-style>||<color>",
"border-top-color": "<color>",
"border-top-left-radius": "<length-percentage>{1,2}",
"border-top-right-radius": "<length-percentage>{1,2}",
"border-top-style": "<line-style>",
"border-top-width": "<line-width>",
"border-width": "<line-width>{1,4}",
bottom: "<length>|<percentage>|auto",
"box-align": "start|center|end|baseline|stretch",
"box-decoration-break": "slice|clone",
"box-direction": "normal|reverse|inherit",
"box-flex": "<number>",
"box-flex-group": "<integer>",
"box-lines": "single|multiple",
"box-ordinal-group": "<integer>",
"box-orient": "horizontal|vertical|inline-axis|block-axis|inherit",
"box-pack": "start|center|end|justify",
"box-shadow": "none|<shadow>#",
"box-sizing": "content-box|border-box",
"break-after": "auto|avoid|always|all|avoid-page|page|left|right|recto|verso|avoid-column|column|avoid-region|region",
"break-before": "auto|avoid|always|all|avoid-page|page|left|right|recto|verso|avoid-column|column|avoid-region|region",
"break-inside": "auto|avoid|avoid-page|avoid-column|avoid-region",
"caption-side": "top|bottom|block-start|block-end|inline-start|inline-end",
"caret-color": "auto|<color>",
clear: "none|left|right|both|inline-start|inline-end",
clip: "<shape>|auto",
"clip-path": "<clip-source>|[<basic-shape>||<geometry-box>]|none",
color: "<color>",
"color-adjust": "economy|exact",
"column-count": "<integer>|auto",
"column-fill": "auto|balance|balance-all",
"column-gap": "normal|<length-percentage>",
"column-rule": "<'column-rule-width'>||<'column-rule-style'>||<'column-rule-color'>",
"column-rule-color": "<color>",
"column-rule-style": "<'border-style'>",
"column-rule-width": "<'border-width'>",
"column-span": "none|all",
"column-width": "<length>|auto",
columns: "<'column-width'>||<'column-count'>",
contain: "none|strict|content|[size||layout||style||paint]",
content: "normal|none|[<content-replacement>|<content-list>] [/ <string>]?",
"counter-increment": "[<custom-ident> <integer>?]+|none",
"counter-reset": "[<custom-ident> <integer>?]+|none",
"counter-set": "[<custom-ident> <integer>?]+|none",
cursor: "[[<url> [<x> <y>]? ,]* [auto|default|none|context-menu|help|pointer|progress|wait|cell|crosshair|text|vertical-text|alias|copy|move|no-drop|not-allowed|e-resize|n-resize|ne-resize|nw-resize|s-resize|se-resize|sw-resize|w-resize|ew-resize|ns-resize|nesw-resize|nwse-resize|col-resize|row-resize|all-scroll|zoom-in|zoom-out|grab|grabbing|hand|-webkit-grab|-webkit-grabbing|-webkit-zoom-in|-webkit-zoom-out|-moz-grab|-moz-grabbing|-moz-zoom-in|-moz-zoom-out]]",
direction: "ltr|rtl",
display: "none|inline|block|list-item|inline-list-item|inline-block|inline-table|table|table-cell|table-column|table-column-group|table-footer-group|table-header-group|table-row|table-row-group|flex|inline-flex|grid|inline-grid|run-in|ruby|ruby-base|ruby-text|ruby-base-container|ruby-text-container|contents|-ms-flexbox|-ms-inline-flexbox|-ms-grid|-ms-inline-grid|-webkit-flex|-webkit-inline-flex|-webkit-box|-webkit-inline-box|-moz-inline-stack|-moz-box|-moz-inline-box",
"empty-cells": "show|hide",
filter: "none|<filter-function-list>|<-ms-filter-function-list>",
flex: "none|[<'flex-grow'> <'flex-shrink'>?||<'flex-basis'>]",
"flex-basis": "content|<'width'>",
"flex-direction": "row|row-reverse|column|column-reverse",
"flex-flow": "<'flex-direction'>||<'flex-wrap'>",
"flex-grow": "<number>",
"flex-shrink": "<number>",
"flex-wrap": "nowrap|wrap|wrap-reverse",
float: "left|right|none|inline-start|inline-end",
font: "[[<'font-style'>||<font-variant-css21>||<'font-weight'>||<'font-stretch'>]? <'font-size'> [/ <'line-height'>]? <'font-family'>]|caption|icon|menu|message-box|small-caption|status-bar",
"font-family": "[<family-name>|<generic-family>]#",
"font-feature-settings": "normal|<feature-tag-value>#",
"font-kerning": "auto|normal|none",
"font-language-override": "normal|<string>",
"font-optical-sizing": "auto|none",
"font-variation-settings": "normal|[<string> <number>]#",
"font-size": "<absolute-size>|<relative-size>|<length-percentage>",
"font-size-adjust": "none|<number>",
"font-stretch": "<font-stretch-absolute>",
"font-style": "normal|italic|oblique <angle>?",
"font-synthesis": "none|[weight||style]",
"font-variant": "normal|none|[<common-lig-values>||<discretionary-lig-values>||<historical-lig-values>||<contextual-alt-values>||stylistic( <feature-value-name> )||historical-forms||styleset( <feature-value-name># )||character-variant( <feature-value-name># )||swash( <feature-value-name> )||ornaments( <feature-value-name> )||annotation( <feature-value-name> )||[small-caps|all-small-caps|petite-caps|all-petite-caps|unicase|titling-caps]||<numeric-figure-values>||<numeric-spacing-values>||<numeric-fraction-values>||ordinal||slashed-zero||<east-asian-variant-values>||<east-asian-width-values>||ruby]",
"font-variant-alternates": "normal|[stylistic( <feature-value-name> )||historical-forms||styleset( <feature-value-name># )||character-variant( <feature-value-name># )||swash( <feature-value-name> )||ornaments( <feature-value-name> )||annotation( <feature-value-name> )]",
"font-variant-caps": "normal|small-caps|all-small-caps|petite-caps|all-petite-caps|unicase|titling-caps",
"font-variant-east-asian": "normal|[<east-asian-variant-values>||<east-asian-width-values>||ruby]",
"font-variant-ligatures": "normal|none|[<common-lig-values>||<discretionary-lig-values>||<historical-lig-values>||<contextual-alt-values>]",
"font-variant-numeric": "normal|[<numeric-figure-values>||<numeric-spacing-values>||<numeric-fraction-values>||ordinal||slashed-zero]",
"font-variant-position": "normal|sub|super",
"font-weight": "<font-weight-absolute>|bolder|lighter",
gap: "<'row-gap'> <'column-gap'>?",
grid: "<'grid-template'>|<'grid-template-rows'> / [auto-flow&&dense?] <'grid-auto-columns'>?|[auto-flow&&dense?] <'grid-auto-rows'>? / <'grid-template-columns'>",
"grid-area": "<grid-line> [/ <grid-line>]{0,3}",
"grid-auto-columns": "<track-size>+",
"grid-auto-flow": "[row|column]||dense",
"grid-auto-rows": "<track-size>+",
"grid-column": "<grid-line> [/ <grid-line>]?",
"grid-column-end": "<grid-line>",
"grid-column-gap": "<length-percentage>",
"grid-column-start": "<grid-line>",
"grid-gap": "<'grid-row-gap'> <'grid-column-gap'>?",
"grid-row": "<grid-line> [/ <grid-line>]?",
"grid-row-end": "<grid-line>",
"grid-row-gap": "<length-percentage>",
"grid-row-start": "<grid-line>",
"grid-template": "none|[<'grid-template-rows'> / <'grid-template-columns'>]|[<line-names>? <string> <track-size>? <line-names>?]+ [/ <explicit-track-list>]?",
"grid-template-areas": "none|<string>+",
"grid-template-columns": "none|<track-list>|<auto-track-list>",
"grid-template-rows": "none|<track-list>|<auto-track-list>",
"hanging-punctuation": "none|[first||[force-end|allow-end]||last]",
height: "[<length>|<percentage>]&&[border-box|content-box]?|available|min-content|max-content|fit-content|auto",
hyphens: "none|manual|auto",
"image-orientation": "from-image|<angle>|[<angle>? flip]",
"image-rendering": "auto|crisp-edges|pixelated|optimizeSpeed|optimizeQuality|<-non-standard-image-rendering>",
"image-resolution": "[from-image||<resolution>]&&snap?",
"ime-mode": "auto|normal|active|inactive|disabled",
"initial-letter": "normal|[<number> <integer>?]",
"initial-letter-align": "[auto|alphabetic|hanging|ideographic]",
"inline-size": "<'width'>",
inset: "<'top'>{1,4}",
"inset-block": "<'top'>{1,2}",
"inset-block-end": "<'top'>",
"inset-block-start": "<'top'>",
"inset-inline": "<'top'>{1,2}",
"inset-inline-end": "<'top'>",
"inset-inline-start": "<'top'>",
isolation: "auto|isolate",
"justify-content": "normal|<content-distribution>|<overflow-position>? [<content-position>|left|right]",
"justify-items": "normal|stretch|<baseline-position>|<overflow-position>? [<self-position>|left|right]|legacy|legacy&&[left|right|center]",
"justify-self": "auto|normal|stretch|<baseline-position>|<overflow-position>? [<self-position>|left|right]",
left: "<length>|<percentage>|auto",
"letter-spacing": "normal|<length-percentage>",
"line-break": "auto|loose|normal|strict",
"line-clamp": "none|<integer>",
"line-height": "normal|<number>|<length>|<percentage>",
"line-height-step": "<length>",
"list-style": "<'list-style-type'>||<'list-style-position'>||<'list-style-image'>",
"list-style-image": "<url>|none",
"list-style-position": "inside|outside",
"list-style-type": "<counter-style>|<string>|none",
margin: "[<length>|<percentage>|auto]{1,4}",
"margin-block": "<'margin-left'>{1,2}",
"margin-block-end": "<'margin-left'>",
"margin-block-start": "<'margin-left'>",
"margin-bottom": "<length>|<percentage>|auto",
"margin-inline": "<'margin-left'>{1,2}",
"margin-inline-end": "<'margin-left'>",
"margin-inline-start": "<'margin-left'>",
"margin-left": "<length>|<percentage>|auto",
"margin-right": "<length>|<percentage>|auto",
"margin-top": "<length>|<percentage>|auto",
mask: "<mask-layer>#",
"mask-border": "<'mask-border-source'>||<'mask-border-slice'> [/ <'mask-border-width'>? [/ <'mask-border-outset'>]?]?||<'mask-border-repeat'>||<'mask-border-mode'>",
"mask-border-mode": "luminance|alpha",
"mask-border-outset": "[<length>|<number>]{1,4}",
"mask-border-repeat": "[stretch|repeat|round|space]{1,2}",
"mask-border-slice": "<number-percentage>{1,4} fill?",
"mask-border-source": "none|<image>",
"mask-border-width": "[<length-percentage>|<number>|auto]{1,4}",
"mask-clip": "[<geometry-box>|no-clip]#",
"mask-composite": "<compositing-operator>#",
"mask-image": "<mask-reference>#",
"mask-mode": "<masking-mode>#",
"mask-origin": "<geometry-box>#",
"mask-position": "<position>#",
"mask-repeat": "<repeat-style>#",
"mask-size": "<bg-size>#",
"mask-type": "luminance|alpha",
"max-block-size": "<'max-width'>",
"max-height": "<length>|<percentage>|none|max-content|min-content|fit-content|fill-available",
"max-inline-size": "<'max-width'>",
"max-lines": "none|<integer>",
"max-width": "<length>|<percentage>|none|max-content|min-content|fit-content|fill-available|<-non-standard-width>",
"min-block-size": "<'min-width'>",
"min-height": "<length>|<percentage>|auto|max-content|min-content|fit-content|fill-available",
"min-inline-size": "<'min-width'>",
"min-width": "<length>|<percentage>|auto|max-content|min-content|fit-content|fill-available|<-non-standard-width>",
"mix-blend-mode": "<blend-mode>",
"object-fit": "fill|contain|cover|none|scale-down",
"object-position": "<position>",
offset: "[<'offset-position'>? [<'offset-path'> [<'offset-distance'>||<'offset-rotate'>]?]?]! [/ <'offset-anchor'>]?",
"offset-anchor": "auto|<position>",
"offset-distance": "<length-percentage>",
"offset-path": "none|ray( [<angle>&&<size>?&&contain?] )|<path()>|<url>|[<basic-shape>||<geometry-box>]",
"offset-position": "auto|<position>",
"offset-rotate": "[auto|reverse]||<angle>",
opacity: "<number-zero-one>",
order: "<integer>",
orphans: "<integer>",
outline: "[<'outline-color'>||<'outline-style'>||<'outline-width'>]",
"outline-color": "<color>|invert",
"outline-offset": "<length>",
"outline-style": "auto|<'border-style'>",
"outline-width": "<line-width>",
overflow: "[visible|hidden|clip|scroll|auto]{1,2}|<-non-standard-overflow>",
"overflow-anchor": "auto|none",
"overflow-block": "visible|hidden|clip|scroll|auto",
"overflow-clip-box": "padding-box|content-box",
"overflow-inline": "visible|hidden|clip|scroll|auto",
"overflow-wrap": "normal|break-word|anywhere",
"overflow-x": "visible|hidden|clip|scroll|auto",
"overflow-y": "visible|hidden|clip|scroll|auto",
"overscroll-behavior": "[contain|none|auto]{1,2}",
"overscroll-behavior-x": "contain|none|auto",
"overscroll-behavior-y": "contain|none|auto",
padding: "[<length>|<percentage>]{1,4}",
"padding-block": "<'padding-left'>{1,2}",
"padding-block-end": "<'padding-left'>",
"padding-block-start": "<'padding-left'>",
"padding-bottom": "<length>|<percentage>",
"padding-inline": "<'padding-left'>{1,2}",
"padding-inline-end": "<'padding-left'>",
"padding-inline-start": "<'padding-left'>",
"padding-left": "<length>|<percentage>",
"padding-right": "<length>|<percentage>",
"padding-top": "<length>|<percentage>",
"page-break-after": "auto|always|avoid|left|right|recto|verso",
"page-break-before": "auto|always|avoid|left|right|recto|verso",
"page-break-inside": "auto|avoid",
"paint-order": "normal|[fill||stroke||markers]",
perspective: "none|<length>",
"perspective-origin": "<position>",
"place-content": "<'align-content'> <'justify-content'>?",
"place-items": "<'align-items'> <'justify-items'>?",
"place-self": "<'align-self'> <'justify-self'>?",
"pointer-events": "auto|none|visiblePainted|visibleFill|visibleStroke|visible|painted|fill|stroke|all|inherit",
position: "static|relative|absolute|sticky|fixed|-webkit-sticky",
quotes: "none|[<string> <string>]+",
resize: "none|both|horizontal|vertical|block|inline",
right: "<length>|<percentage>|auto",
rotate: "none|<angle>|[x|y|z|<number>{3}]&&<angle>",
"row-gap": "normal|<length-percentage>",
"ruby-align": "start|center|space-between|space-around",
"ruby-merge": "separate|collapse|auto",
"ruby-position": "over|under|inter-character",
scale: "none|<number>{1,3}",
"scrollbar-color": "auto|dark|light|<color>{2}",
"scrollbar-width": "auto|thin|none",
"scroll-behavior": "auto|smooth",
"scroll-margin": "<length>{1,4}",
"scroll-margin-block": "<length>{1,2}",
"scroll-margin-block-start": "<length>",
"scroll-margin-block-end": "<length>",
"scroll-margin-bottom": "<length>",
"scroll-margin-inline": "<length>{1,2}",
"scroll-margin-inline-start": "<length>",
"scroll-margin-inline-end": "<length>",
"scroll-margin-left": "<length>",
"scroll-margin-right": "<length>",
"scroll-margin-top": "<length>",
"scroll-padding": "[auto|<length-percentage>]{1,4}",
"scroll-padding-block": "[auto|<length-percentage>]{1,2}",
"scroll-padding-block-start": "auto|<length-percentage>",
"scroll-padding-block-end": "auto|<length-percentage>",
"scroll-padding-bottom": "auto|<length-percentage>",
"scroll-padding-inline": "[auto|<length-percentage>]{1,2}",
"scroll-padding-inline-start": "auto|<length-percentage>",
"scroll-padding-inline-end": "auto|<length-percentage>",
"scroll-padding-left": "auto|<length-percentage>",
"scroll-padding-right": "auto|<length-percentage>",
"scroll-padding-top": "auto|<length-percentage>",
"scroll-snap-align": "[none|start|end|center]{1,2}",
"scroll-snap-coordinate": "none|<position>#",
"scroll-snap-destination": "<position>",
"scroll-snap-points-x": "none|repeat( <length-percentage> )",
"scroll-snap-points-y": "none|repeat( <length-percentage> )",
"scroll-snap-stop": "normal|always",
"scroll-snap-type": "none|[x|y|block|inline|both] [mandatory|proximity]?",
"scroll-snap-type-x": "none|mandatory|proximity",
"scroll-snap-type-y": "none|mandatory|proximity",
"shape-image-threshold": "<number>",
"shape-margin": "<length-percentage>",
"shape-outside": "none|<shape-box>||<basic-shape>|<image>",
"tab-size": "<integer>|<length>",
"table-layout": "auto|fixed",
"text-align": "start|end|left|right|center|justify|match-parent",
"text-align-last": "auto|start|end|left|right|center|justify",
"text-combine-upright": "none|all|[digits <integer>?]",
"text-decoration": "<'text-decoration-line'>||<'text-decoration-style'>||<'text-decoration-color'>",
"text-decoration-color": "<color>",
"text-decoration-line": "none|[underline||overline||line-through||blink]",
"text-decoration-skip": "none|[objects||[spaces|[leading-spaces||trailing-spaces]]||edges||box-decoration]",
"text-decoration-skip-ink": "auto|none",
"text-decoration-style": "solid|double|dotted|dashed|wavy",
"text-emphasis": "<'text-emphasis-style'>||<'text-emphasis-color'>",
"text-emphasis-color": "<color>",
"text-emphasis-position": "[over|under]&&[right|left]",
"text-emphasis-style": "none|[[filled|open]||[dot|circle|double-circle|triangle|sesame]]|<string>",
"text-indent": "<length-percentage>&&hanging?&&each-line?",
"text-justify": "auto|inter-character|inter-word|none",
"text-orientation": "mixed|upright|sideways",
"text-overflow": "[clip|ellipsis|<string>]{1,2}",
"text-rendering": "auto|optimizeSpeed|optimizeLegibility|geometricPrecision",
"text-shadow": "none|<shadow-t>#",
"text-size-adjust": "none|auto|<percentage>",
"text-transform": "none|capitalize|uppercase|lowercase|full-width|full-size-kana",
"text-underline-position": "auto|[under||[left|right]]",
top: "<length>|<percentage>|auto",
"touch-action": "auto|none|[[pan-x|pan-left|pan-right]||[pan-y|pan-up|pan-down]||pinch-zoom]|manipulation",
transform: "none|<transform-list>",
"transform-box": "border-box|fill-box|view-box",
"transform-origin": "[<length-percentage>|left|center|right|top|bottom]|[[<length-percentage>|left|center|right]&&[<length-percentage>|top|center|bottom]] <length>?",
"transform-style": "flat|preserve-3d",
transition: "<single-transition>#",
"transition-delay": "<time>#",
"transition-duration": "<time>#",
"transition-property": "none|<single-transition-property>#",
"transition-timing-function": "<timing-function>#",
translate: "none|<length-percentage> [<length-percentage> <length>?]?",
"unicode-bidi": "normal|embed|isolate|bidi-override|isolate-override|plaintext|-moz-isolate|-moz-isolate-override|-moz-plaintext|-webkit-isolate",
"user-select": "auto|text|none|contain|all",
"vertical-align": "baseline|sub|super|text-top|text-bottom|middle|top|bottom|<percentage>|<length>",
visibility: "visible|hidden|collapse",
"white-space": "normal|pre|nowrap|pre-wrap|pre-line",
widows: "<integer>",
width: "[<length>|<percentage>]&&[border-box|content-box]?|available|min-content|max-content|fit-content|auto",
"will-change": "auto|<animateable-feature>#",
"word-break": "normal|break-all|keep-all|break-word",
"word-spacing": "normal|<length-percentage>",
"word-wrap": "normal|break-word",
"writing-mode": "horizontal-tb|vertical-rl|vertical-lr|sideways-rl|sideways-lr|<svg-writing-mode>",
"z-index": "auto|<integer>",
zoom: "normal|reset|<number>|<percentage>",
"-moz-background-clip": "padding|border",
"-moz-border-radius-bottomleft": "<'border-bottom-left-radius'>",
"-moz-border-radius-bottomright": "<'border-bottom-right-radius'>",
"-moz-border-radius-topleft": "<'border-top-left-radius'>",
"-moz-border-radius-topright": "<'border-bottom-right-radius'>",
"-moz-osx-font-smoothing": "auto|grayscale",
"-moz-user-select": "none|text|all|-moz-none",
"-ms-flex-align": "start|end|center|baseline|stretch",
"-ms-flex-item-align": "auto|start|end|center|baseline|stretch",
"-ms-flex-line-pack": "start|end|center|justify|distribute|stretch",
"-ms-flex-negative": "<'flex-shrink'>",
"-ms-flex-pack": "start|end|center|justify|distribute",
"-ms-flex-order": "<integer>",
"-ms-flex-positive": "<'flex-grow'>",
"-ms-flex-preferred-size": "<'flex-basis'>",
"-ms-interpolation-mode": "nearest-neighbor|bicubic",
"-ms-grid-column-align": "start|end|center|stretch",
"-ms-grid-row-align": "start|end|center|stretch",
"-webkit-background-clip": "[<box>|border|padding|content|text]#",
"-webkit-column-break-after": "always|auto|avoid",
"-webkit-column-break-before": "always|auto|avoid",
"-webkit-column-break-inside": "always|auto|avoid",
"-webkit-font-smoothing": "auto|none|antialiased|subpixel-antialiased",
"-webkit-mask-box-image": "[<url>|<gradient>|none] [<length-percentage>{4} <-webkit-mask-box-repeat>{2}]?",
"-webkit-print-color-adjust": "economy|exact",
"-webkit-text-security": "none|circle|disc|square",
"-webkit-user-drag": "none|element|auto",
"-webkit-user-select": "auto|none|text|all",
"alignment-baseline": "auto|baseline|before-edge|text-before-edge|middle|central|after-edge|text-after-edge|ideographic|alphabetic|hanging|mathematical",
"baseline-shift": "baseline|sub|super|<svg-length>",
behavior: "<url>+",
"clip-rule": "nonzero|evenodd",
cue: "<'cue-before'> <'cue-after'>?",
"cue-after": "<url> <decibel>?|none",
"cue-before": "<url> <decibel>?|none",
"dominant-baseline": "auto|use-script|no-change|reset-size|ideographic|alphabetic|hanging|mathematical|central|middle|text-after-edge|text-before-edge",
fill: "<paint>",
"fill-opacity": "<number-zero-one>",
"fill-rule": "nonzero|evenodd",
"glyph-orientation-horizontal": "<angle>",
"glyph-orientation-vertical": "<angle>",
kerning: "auto|<svg-length>",
marker: "none|<url>",
"marker-end": "none|<url>",
"marker-mid": "none|<url>",
"marker-start": "none|<url>",
pause: "<'pause-before'> <'pause-after'>?",
"pause-after": "<time>|none|x-weak|weak|medium|strong|x-strong",
"pause-before": "<time>|none|x-weak|weak|medium|strong|x-strong",
rest: "<'rest-before'> <'rest-after'>?",
"rest-after": "<time>|none|x-weak|weak|medium|strong|x-strong",
"rest-before": "<time>|none|x-weak|weak|medium|strong|x-strong",
"shape-rendering": "auto|optimizeSpeed|crispEdges|geometricPrecision",
src: "[<url> [format( <string># )]?|local( <family-name> )]#",
speak: "auto|none|normal",
"speak-as": "normal|spell-out||digits||[literal-punctuation|no-punctuation]",
stroke: "<paint>",
"stroke-dasharray": "none|[<svg-length>+]#",
"stroke-dashoffset": "<svg-length>",
"stroke-linecap": "butt|round|square",
"stroke-linejoin": "miter|round|bevel",
"stroke-miterlimit": "<number-one-or-greater>",
"stroke-opacity": "<number-zero-one>",
"stroke-width": "<svg-length>",
"text-anchor": "start|middle|end",
"unicode-range": "<urange>#",
"voice-balance": "<number>|left|center|right|leftwards|rightwards",
"voice-duration": "auto|<time>",
"voice-family": "[[<family-name>|<generic-voice>] ,]* [<family-name>|<generic-voice>]|preserve",
"voice-pitch": "<frequency>&&absolute|[[x-low|low|medium|high|x-high]||[<frequency>|<semitones>|<percentage>]]",
"voice-range": "<frequency>&&absolute|[[x-low|low|medium|high|x-high]||[<frequency>|<semitones>|<percentage>]]",
"voice-rate": "[normal|x-slow|slow|medium|fast|x-fast]||<percentage>",
"voice-stress": "normal|strong|moderate|none|reduced",
"voice-volume": "silent|[[x-soft|soft|medium|loud|x-loud]||<decibel>]"
};
var defaultSyntax = {
generic: generic$1,
types: types,
properties: properties$1
};
var defaultSyntax$1 = /*#__PURE__*/Object.freeze({
__proto__: null,
generic: generic$1,
types: types,
properties: properties$1,
'default': defaultSyntax
});
var cmpChar$3 = tokenizer.cmpChar;
var isDigit$4 = tokenizer.isDigit;
var TYPE$9 = tokenizer.TYPE;
var WHITESPACE$4 = TYPE$9.WhiteSpace;
var COMMENT$3 = TYPE$9.Comment;
var IDENT$3 = TYPE$9.Ident;
var NUMBER$3 = TYPE$9.Number;
var DIMENSION$2 = TYPE$9.Dimension;
var PLUSSIGN$3 = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS$3 = 0x002D; // U+002D HYPHEN-MINUS (-)
var N$4 = 0x006E; // U+006E LATIN SMALL LETTER N (n)
var DISALLOW_SIGN$1 = true;
var ALLOW_SIGN$1 = false;
function checkInteger$1(offset, disallowSign) {
var pos = this.scanner.tokenStart + offset;
var code = this.scanner.source.charCodeAt(pos);
if (code === PLUSSIGN$3 || code === HYPHENMINUS$3) {
if (disallowSign) {
this.error('Number sign is not allowed');
}
pos++;
}
for (; pos < this.scanner.tokenEnd; pos++) {
if (!isDigit$4(this.scanner.source.charCodeAt(pos))) {
this.error('Integer is expected', pos);
}
}
}
function checkTokenIsInteger(disallowSign) {
return checkInteger$1.call(this, 0, disallowSign);
}
function expectCharCode(offset, code) {
if (!cmpChar$3(this.scanner.source, this.scanner.tokenStart + offset, code)) {
var msg = '';
switch (code) {
case N$4:
msg = 'N is expected';
break;
case HYPHENMINUS$3:
msg = 'HyphenMinus is expected';
break;
}
this.error(msg, this.scanner.tokenStart + offset);
}
}
// ... <signed-integer>
// ... ['+' | '-'] <signless-integer>
function consumeB$1() {
var offset = 0;
var sign = 0;
var type = this.scanner.tokenType;
while (type === WHITESPACE$4 || type === COMMENT$3) {
type = this.scanner.lookupType(++offset);
}
if (type !== NUMBER$3) {
if (this.scanner.isDelim(PLUSSIGN$3, offset) ||
this.scanner.isDelim(HYPHENMINUS$3, offset)) {
sign = this.scanner.isDelim(PLUSSIGN$3, offset) ? PLUSSIGN$3 : HYPHENMINUS$3;
do {
type = this.scanner.lookupType(++offset);
} while (type === WHITESPACE$4 || type === COMMENT$3);
if (type !== NUMBER$3) {
this.scanner.skip(offset);
checkTokenIsInteger.call(this, DISALLOW_SIGN$1);
}
} else {
return null;
}
}
if (offset > 0) {
this.scanner.skip(offset);
}
if (sign === 0) {
type = this.scanner.source.charCodeAt(this.scanner.tokenStart);
if (type !== PLUSSIGN$3 && type !== HYPHENMINUS$3) {
this.error('Number sign is expected');
}
}
checkTokenIsInteger.call(this, sign !== 0);
return sign === HYPHENMINUS$3 ? '-' + this.consume(NUMBER$3) : this.consume(NUMBER$3);
}
// An+B microsyntax https://www.w3.org/TR/css-syntax-3/#anb
var AnPlusB = {
name: 'AnPlusB',
structure: {
a: [String, null],
b: [String, null]
},
parse: function() {
/* eslint-disable brace-style*/
var start = this.scanner.tokenStart;
var a = null;
var b = null;
// <integer>
if (this.scanner.tokenType === NUMBER$3) {
checkTokenIsInteger.call(this, ALLOW_SIGN$1);
b = this.consume(NUMBER$3);
}
// -n
// -n <signed-integer>
// -n ['+' | '-'] <signless-integer>
// -n- <signless-integer>
// <dashndashdigit-ident>
else if (this.scanner.tokenType === IDENT$3 && cmpChar$3(this.scanner.source, this.scanner.tokenStart, HYPHENMINUS$3)) {
a = '-1';
expectCharCode.call(this, 1, N$4);
switch (this.scanner.getTokenLength()) {
// -n
// -n <signed-integer>
// -n ['+' | '-'] <signless-integer>
case 2:
this.scanner.next();
b = consumeB$1.call(this);
break;
// -n- <signless-integer>
case 3:
expectCharCode.call(this, 2, HYPHENMINUS$3);
this.scanner.next();
this.scanner.skipSC();
checkTokenIsInteger.call(this, DISALLOW_SIGN$1);
b = '-' + this.consume(NUMBER$3);
break;
// <dashndashdigit-ident>
default:
expectCharCode.call(this, 2, HYPHENMINUS$3);
checkInteger$1.call(this, 3, DISALLOW_SIGN$1);
this.scanner.next();
b = this.scanner.substrToCursor(start + 2);
}
}
// '+'? n
// '+'? n <signed-integer>
// '+'? n ['+' | '-'] <signless-integer>
// '+'? n- <signless-integer>
// '+'? <ndashdigit-ident>
else if (this.scanner.tokenType === IDENT$3 || (this.scanner.isDelim(PLUSSIGN$3) && this.scanner.lookupType(1) === IDENT$3)) {
var sign = 0;
a = '1';
// just ignore a plus
if (this.scanner.isDelim(PLUSSIGN$3)) {
sign = 1;
this.scanner.next();
}
expectCharCode.call(this, 0, N$4);
switch (this.scanner.getTokenLength()) {
// '+'? n
// '+'? n <signed-integer>
// '+'? n ['+' | '-'] <signless-integer>
case 1:
this.scanner.next();
b = consumeB$1.call(this);
break;
// '+'? n- <signless-integer>
case 2:
expectCharCode.call(this, 1, HYPHENMINUS$3);
this.scanner.next();
this.scanner.skipSC();
checkTokenIsInteger.call(this, DISALLOW_SIGN$1);
b = '-' + this.consume(NUMBER$3);
break;
// '+'? <ndashdigit-ident>
default:
expectCharCode.call(this, 1, HYPHENMINUS$3);
checkInteger$1.call(this, 2, DISALLOW_SIGN$1);
this.scanner.next();
b = this.scanner.substrToCursor(start + sign + 1);
}
}
// <ndashdigit-dimension>
// <ndash-dimension> <signless-integer>
// <n-dimension>
// <n-dimension> <signed-integer>
// <n-dimension> ['+' | '-'] <signless-integer>
else if (this.scanner.tokenType === DIMENSION$2) {
var code = this.scanner.source.charCodeAt(this.scanner.tokenStart);
var sign = code === PLUSSIGN$3 || code === HYPHENMINUS$3;
for (var i = this.scanner.tokenStart + sign; i < this.scanner.tokenEnd; i++) {
if (!isDigit$4(this.scanner.source.charCodeAt(i))) {
break;
}
}
if (i === this.scanner.tokenStart + sign) {
this.error('Integer is expected', this.scanner.tokenStart + sign);
}
expectCharCode.call(this, i - this.scanner.tokenStart, N$4);
a = this.scanner.source.substring(start, i);
// <n-dimension>
// <n-dimension> <signed-integer>
// <n-dimension> ['+' | '-'] <signless-integer>
if (i + 1 === this.scanner.tokenEnd) {
this.scanner.next();
b = consumeB$1.call(this);
} else {
expectCharCode.call(this, i - this.scanner.tokenStart + 1, HYPHENMINUS$3);
// <ndash-dimension> <signless-integer>
if (i + 2 === this.scanner.tokenEnd) {
this.scanner.next();
this.scanner.skipSC();
checkTokenIsInteger.call(this, DISALLOW_SIGN$1);
b = '-' + this.consume(NUMBER$3);
}
// <ndashdigit-dimension>
else {
checkInteger$1.call(this, i - this.scanner.tokenStart + 2, DISALLOW_SIGN$1);
this.scanner.next();
b = this.scanner.substrToCursor(i + 1);
}
}
} else {
this.error();
}
if (a !== null && a.charCodeAt(0) === PLUSSIGN$3) {
a = a.substr(1);
}
if (b !== null && b.charCodeAt(0) === PLUSSIGN$3) {
b = b.substr(1);
}
return {
type: 'AnPlusB',
loc: this.getLocation(start, this.scanner.tokenStart),
a: a,
b: b
};
},
generate: function(node) {
var a = node.a !== null && node.a !== undefined;
var b = node.b !== null && node.b !== undefined;
if (a) {
this.chunk(
node.a === '+1' ? '+n' : // eslint-disable-line operator-linebreak, indent
node.a === '1' ? 'n' : // eslint-disable-line operator-linebreak, indent
node.a === '-1' ? '-n' : // eslint-disable-line operator-linebreak, indent
node.a + 'n' // eslint-disable-line operator-linebreak, indent
);
if (b) {
b = String(node.b);
if (b.charAt(0) === '-' || b.charAt(0) === '+') {
this.chunk(b.charAt(0));
this.chunk(b.substr(1));
} else {
this.chunk('+');
this.chunk(b);
}
}
} else {
this.chunk(String(node.b));
}
}
};
var TYPE$a = tokenizer.TYPE;
var WhiteSpace = TYPE$a.WhiteSpace;
var Semicolon = TYPE$a.Semicolon;
var LeftCurlyBracket = TYPE$a.LeftCurlyBracket;
var Delim = TYPE$a.Delim;
var EXCLAMATIONMARK$1 = 0x0021; // U+0021 EXCLAMATION MARK (!)
function getOffsetExcludeWS() {
if (this.scanner.tokenIndex > 0) {
if (this.scanner.lookupType(-1) === WhiteSpace) {
return this.scanner.tokenIndex > 1
? this.scanner.getTokenStart(this.scanner.tokenIndex - 1)
: this.scanner.firstCharOffset;
}
}
return this.scanner.tokenStart;
}
// 0, 0, false
function balanceEnd() {
return 0;
}
// LEFTCURLYBRACKET, 0, false
function leftCurlyBracket(tokenType) {
return tokenType === LeftCurlyBracket ? 1 : 0;
}
// LEFTCURLYBRACKET, SEMICOLON, false
function leftCurlyBracketOrSemicolon(tokenType) {
return tokenType === LeftCurlyBracket || tokenType === Semicolon ? 1 : 0;
}
// EXCLAMATIONMARK, SEMICOLON, false
function exclamationMarkOrSemicolon(tokenType, source, offset) {
if (tokenType === Delim && source.charCodeAt(offset) === EXCLAMATIONMARK$1) {
return 1;
}
return tokenType === Semicolon ? 1 : 0;
}
// 0, SEMICOLON, true
function semicolonIncluded(tokenType) {
return tokenType === Semicolon ? 2 : 0;
}
var Raw = {
name: 'Raw',
structure: {
value: String
},
parse: function(startToken, mode, excludeWhiteSpace) {
var startOffset = this.scanner.getTokenStart(startToken);
var endOffset;
this.scanner.skip(
this.scanner.getRawLength(startToken, mode || balanceEnd)
);
if (excludeWhiteSpace && this.scanner.tokenStart > startOffset) {
endOffset = getOffsetExcludeWS.call(this);
} else {
endOffset = this.scanner.tokenStart;
}
return {
type: 'Raw',
loc: this.getLocation(startOffset, endOffset),
value: this.scanner.source.substring(startOffset, endOffset)
};
},
generate: function(node) {
this.chunk(node.value);
},
mode: {
default: balanceEnd,
leftCurlyBracket: leftCurlyBracket,
leftCurlyBracketOrSemicolon: leftCurlyBracketOrSemicolon,
exclamationMarkOrSemicolon: exclamationMarkOrSemicolon,
semicolonIncluded: semicolonIncluded
}
};
var TYPE$b = tokenizer.TYPE;
var rawMode = Raw.mode;
var ATKEYWORD = TYPE$b.AtKeyword;
var SEMICOLON = TYPE$b.Semicolon;
var LEFTCURLYBRACKET$1 = TYPE$b.LeftCurlyBracket;
var RIGHTCURLYBRACKET$1 = TYPE$b.RightCurlyBracket;
function consumeRaw(startToken) {
return this.Raw(startToken, rawMode.leftCurlyBracketOrSemicolon, true);
}
function isDeclarationBlockAtrule() {
for (var offset = 1, type; type = this.scanner.lookupType(offset); offset++) {
if (type === RIGHTCURLYBRACKET$1) {
return true;
}
if (type === LEFTCURLYBRACKET$1 ||
type === ATKEYWORD) {
return false;
}
}
return false;
}
var Atrule = {
name: 'Atrule',
structure: {
name: String,
prelude: ['AtrulePrelude', 'Raw', null],
block: ['Block', null]
},
parse: function() {
var start = this.scanner.tokenStart;
var name;
var nameLowerCase;
var prelude = null;
var block = null;
this.eat(ATKEYWORD);
name = this.scanner.substrToCursor(start + 1);
nameLowerCase = name.toLowerCase();
this.scanner.skipSC();
// parse prelude
if (this.scanner.eof === false &&
this.scanner.tokenType !== LEFTCURLYBRACKET$1 &&
this.scanner.tokenType !== SEMICOLON) {
if (this.parseAtrulePrelude) {
prelude = this.parseWithFallback(this.AtrulePrelude.bind(this, name), consumeRaw);
// turn empty AtrulePrelude into null
if (prelude.type === 'AtrulePrelude' && prelude.children.head === null) {
prelude = null;
}
} else {
prelude = consumeRaw.call(this, this.scanner.tokenIndex);
}
this.scanner.skipSC();
}
switch (this.scanner.tokenType) {
case SEMICOLON:
this.scanner.next();
break;
case LEFTCURLYBRACKET$1:
if (this.atrule.hasOwnProperty(nameLowerCase) &&
typeof this.atrule[nameLowerCase].block === 'function') {
block = this.atrule[nameLowerCase].block.call(this);
} else {
// TODO: should consume block content as Raw?
block = this.Block(isDeclarationBlockAtrule.call(this));
}
break;
}
return {
type: 'Atrule',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
prelude: prelude,
block: block
};
},
generate: function(node) {
this.chunk('@');
this.chunk(node.name);
if (node.prelude !== null) {
this.chunk(' ');
this.node(node.prelude);
}
if (node.block) {
this.node(node.block);
} else {
this.chunk(';');
}
},
walkContext: 'atrule'
};
var TYPE$c = tokenizer.TYPE;
var SEMICOLON$1 = TYPE$c.Semicolon;
var LEFTCURLYBRACKET$2 = TYPE$c.LeftCurlyBracket;
var AtrulePrelude = {
name: 'AtrulePrelude',
structure: {
children: [[]]
},
parse: function(name) {
var children = null;
if (name !== null) {
name = name.toLowerCase();
}
this.scanner.skipSC();
if (this.atrule.hasOwnProperty(name) &&
typeof this.atrule[name].prelude === 'function') {
// custom consumer
children = this.atrule[name].prelude.call(this);
} else {
// default consumer
children = this.readSequence(this.scope.AtrulePrelude);
}
this.scanner.skipSC();
if (this.scanner.eof !== true &&
this.scanner.tokenType !== LEFTCURLYBRACKET$2 &&
this.scanner.tokenType !== SEMICOLON$1) {
this.error('Semicolon or block is expected');
}
if (children === null) {
children = this.createList();
}
return {
type: 'AtrulePrelude',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node);
},
walkContext: 'atrulePrelude'
};
var TYPE$d = tokenizer.TYPE;
var IDENT$4 = TYPE$d.Ident;
var STRING = TYPE$d.String;
var COLON = TYPE$d.Colon;
var LEFTSQUAREBRACKET$1 = TYPE$d.LeftSquareBracket;
var RIGHTSQUAREBRACKET$1 = TYPE$d.RightSquareBracket;
var DOLLARSIGN = 0x0024; // U+0024 DOLLAR SIGN ($)
var ASTERISK$1 = 0x002A; // U+002A ASTERISK (*)
var EQUALSSIGN = 0x003D; // U+003D EQUALS SIGN (=)
var CIRCUMFLEXACCENT = 0x005E; // U+005E (^)
var VERTICALLINE$1 = 0x007C; // U+007C VERTICAL LINE (|)
var TILDE = 0x007E; // U+007E TILDE (~)
function getAttributeName() {
if (this.scanner.eof) {
this.error('Unexpected end of input');
}
var start = this.scanner.tokenStart;
var expectIdent = false;
var checkColon = true;
if (this.scanner.isDelim(ASTERISK$1)) {
expectIdent = true;
checkColon = false;
this.scanner.next();
} else if (!this.scanner.isDelim(VERTICALLINE$1)) {
this.eat(IDENT$4);
}
if (this.scanner.isDelim(VERTICALLINE$1)) {
if (this.scanner.source.charCodeAt(this.scanner.tokenStart + 1) !== EQUALSSIGN) {
this.scanner.next();
this.eat(IDENT$4);
} else if (expectIdent) {
this.error('Identifier is expected', this.scanner.tokenEnd);
}
} else if (expectIdent) {
this.error('Vertical line is expected');
}
if (checkColon && this.scanner.tokenType === COLON) {
this.scanner.next();
this.eat(IDENT$4);
}
return {
type: 'Identifier',
loc: this.getLocation(start, this.scanner.tokenStart),
name: this.scanner.substrToCursor(start)
};
}
function getOperator() {
var start = this.scanner.tokenStart;
var code = this.scanner.source.charCodeAt(start);
if (code !== EQUALSSIGN && // =
code !== TILDE && // ~=
code !== CIRCUMFLEXACCENT && // ^=
code !== DOLLARSIGN && // $=
code !== ASTERISK$1 && // *=
code !== VERTICALLINE$1 // |=
) {
this.error('Attribute selector (=, ~=, ^=, $=, *=, |=) is expected');
}
this.scanner.next();
if (code !== EQUALSSIGN) {
if (!this.scanner.isDelim(EQUALSSIGN)) {
this.error('Equal sign is expected');
}
this.scanner.next();
}
return this.scanner.substrToCursor(start);
}
// '[' <wq-name> ']'
// '[' <wq-name> <attr-matcher> [ <string-token> | <ident-token> ] <attr-modifier>? ']'
var AttributeSelector = {
name: 'AttributeSelector',
structure: {
name: 'Identifier',
matcher: [String, null],
value: ['String', 'Identifier', null],
flags: [String, null]
},
parse: function() {
var start = this.scanner.tokenStart;
var name;
var matcher = null;
var value = null;
var flags = null;
this.eat(LEFTSQUAREBRACKET$1);
this.scanner.skipSC();
name = getAttributeName.call(this);
this.scanner.skipSC();
if (this.scanner.tokenType !== RIGHTSQUAREBRACKET$1) {
// avoid case `[name i]`
if (this.scanner.tokenType !== IDENT$4) {
matcher = getOperator.call(this);
this.scanner.skipSC();
value = this.scanner.tokenType === STRING
? this.String()
: this.Identifier();
this.scanner.skipSC();
}
// attribute flags
if (this.scanner.tokenType === IDENT$4) {
flags = this.scanner.getTokenValue();
this.scanner.next();
this.scanner.skipSC();
}
}
this.eat(RIGHTSQUAREBRACKET$1);
return {
type: 'AttributeSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
matcher: matcher,
value: value,
flags: flags
};
},
generate: function(node) {
var flagsPrefix = ' ';
this.chunk('[');
this.node(node.name);
if (node.matcher !== null) {
this.chunk(node.matcher);
if (node.value !== null) {
this.node(node.value);
// space between string and flags is not required
if (node.value.type === 'String') {
flagsPrefix = '';
}
}
}
if (node.flags !== null) {
this.chunk(flagsPrefix);
this.chunk(node.flags);
}
this.chunk(']');
}
};
var TYPE$e = tokenizer.TYPE;
var rawMode$1 = Raw.mode;
var WHITESPACE$5 = TYPE$e.WhiteSpace;
var COMMENT$4 = TYPE$e.Comment;
var SEMICOLON$2 = TYPE$e.Semicolon;
var ATKEYWORD$1 = TYPE$e.AtKeyword;
var LEFTCURLYBRACKET$3 = TYPE$e.LeftCurlyBracket;
var RIGHTCURLYBRACKET$2 = TYPE$e.RightCurlyBracket;
function consumeRaw$1(startToken) {
return this.Raw(startToken, null, true);
}
function consumeRule() {
return this.parseWithFallback(this.Rule, consumeRaw$1);
}
function consumeRawDeclaration(startToken) {
return this.Raw(startToken, rawMode$1.semicolonIncluded, true);
}
function consumeDeclaration() {
if (this.scanner.tokenType === SEMICOLON$2) {
return consumeRawDeclaration.call(this, this.scanner.tokenIndex);
}
var node = this.parseWithFallback(this.Declaration, consumeRawDeclaration);
if (this.scanner.tokenType === SEMICOLON$2) {
this.scanner.next();
}
return node;
}
var Block = {
name: 'Block',
structure: {
children: [[
'Atrule',
'Rule',
'Declaration'
]]
},
parse: function(isDeclaration) {
var consumer = isDeclaration ? consumeDeclaration : consumeRule;
var start = this.scanner.tokenStart;
var children = this.createList();
this.eat(LEFTCURLYBRACKET$3);
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case RIGHTCURLYBRACKET$2:
break scan;
case WHITESPACE$5:
case COMMENT$4:
this.scanner.next();
break;
case ATKEYWORD$1:
children.push(this.parseWithFallback(this.Atrule, consumeRaw$1));
break;
default:
children.push(consumer.call(this));
}
}
if (!this.scanner.eof) {
this.eat(RIGHTCURLYBRACKET$2);
}
return {
type: 'Block',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.chunk('{');
this.children(node, function(prev) {
if (prev.type === 'Declaration') {
this.chunk(';');
}
});
this.chunk('}');
},
walkContext: 'block'
};
var TYPE$f = tokenizer.TYPE;
var LEFTSQUAREBRACKET$2 = TYPE$f.LeftSquareBracket;
var RIGHTSQUAREBRACKET$2 = TYPE$f.RightSquareBracket;
var Brackets = {
name: 'Brackets',
structure: {
children: [[]]
},
parse: function(readSequence, recognizer) {
var start = this.scanner.tokenStart;
var children = null;
this.eat(LEFTSQUAREBRACKET$2);
children = readSequence.call(this, recognizer);
if (!this.scanner.eof) {
this.eat(RIGHTSQUAREBRACKET$2);
}
return {
type: 'Brackets',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.chunk('[');
this.children(node);
this.chunk(']');
}
};
var CDC = tokenizer.TYPE.CDC;
var CDC_1 = {
name: 'CDC',
structure: [],
parse: function() {
var start = this.scanner.tokenStart;
this.eat(CDC); // -->
return {
type: 'CDC',
loc: this.getLocation(start, this.scanner.tokenStart)
};
},
generate: function() {
this.chunk('-->');
}
};
var CDO = tokenizer.TYPE.CDO;
var CDO_1 = {
name: 'CDO',
structure: [],
parse: function() {
var start = this.scanner.tokenStart;
this.eat(CDO); // <!--
return {
type: 'CDO',
loc: this.getLocation(start, this.scanner.tokenStart)
};
},
generate: function() {
this.chunk('<!--');
}
};
var TYPE$g = tokenizer.TYPE;
var IDENT$5 = TYPE$g.Ident;
var FULLSTOP = 0x002E; // U+002E FULL STOP (.)
// '.' ident
var ClassSelector = {
name: 'ClassSelector',
structure: {
name: String
},
parse: function() {
if (!this.scanner.isDelim(FULLSTOP)) {
this.error('Full stop is expected');
}
this.scanner.next();
return {
type: 'ClassSelector',
loc: this.getLocation(this.scanner.tokenStart - 1, this.scanner.tokenEnd),
name: this.consume(IDENT$5)
};
},
generate: function(node) {
this.chunk('.');
this.chunk(node.name);
}
};
var TYPE$h = tokenizer.TYPE;
var IDENT$6 = TYPE$h.Ident;
var PLUSSIGN$4 = 0x002B; // U+002B PLUS SIGN (+)
var SOLIDUS = 0x002F; // U+002F SOLIDUS (/)
var GREATERTHANSIGN$1 = 0x003E; // U+003E GREATER-THAN SIGN (>)
var TILDE$1 = 0x007E; // U+007E TILDE (~)
// + | > | ~ | /deep/
var Combinator = {
name: 'Combinator',
structure: {
name: String
},
parse: function() {
var start = this.scanner.tokenStart;
var code = this.scanner.source.charCodeAt(this.scanner.tokenStart);
switch (code) {
case GREATERTHANSIGN$1:
case PLUSSIGN$4:
case TILDE$1:
this.scanner.next();
break;
case SOLIDUS:
this.scanner.next();
if (this.scanner.tokenType !== IDENT$6 || this.scanner.lookupValue(0, 'deep') === false) {
this.error('Identifier `deep` is expected');
}
this.scanner.next();
if (!this.scanner.isDelim(SOLIDUS)) {
this.error('Solidus is expected');
}
this.scanner.next();
break;
default:
this.error('Combinator is expected');
}
return {
type: 'Combinator',
loc: this.getLocation(start, this.scanner.tokenStart),
name: this.scanner.substrToCursor(start)
};
},
generate: function(node) {
this.chunk(node.name);
}
};
var TYPE$i = tokenizer.TYPE;
var COMMENT$5 = TYPE$i.Comment;
var ASTERISK$2 = 0x002A; // U+002A ASTERISK (*)
var SOLIDUS$1 = 0x002F; // U+002F SOLIDUS (/)
// '/*' .* '*/'
var Comment = {
name: 'Comment',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
var end = this.scanner.tokenEnd;
this.eat(COMMENT$5);
if ((end - start + 2) >= 2 &&
this.scanner.source.charCodeAt(end - 2) === ASTERISK$2 &&
this.scanner.source.charCodeAt(end - 1) === SOLIDUS$1) {
end -= 2;
}
return {
type: 'Comment',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.source.substring(start + 2, end)
};
},
generate: function(node) {
this.chunk('/*');
this.chunk(node.value);
this.chunk('*/');
}
};
var isCustomProperty$1 = names.isCustomProperty;
var TYPE$j = tokenizer.TYPE;
var rawMode$2 = Raw.mode;
var IDENT$7 = TYPE$j.Ident;
var HASH$1 = TYPE$j.Hash;
var COLON$1 = TYPE$j.Colon;
var SEMICOLON$3 = TYPE$j.Semicolon;
var DELIM$2 = TYPE$j.Delim;
var EXCLAMATIONMARK$2 = 0x0021; // U+0021 EXCLAMATION MARK (!)
var NUMBERSIGN$2 = 0x0023; // U+0023 NUMBER SIGN (#)
var DOLLARSIGN$1 = 0x0024; // U+0024 DOLLAR SIGN ($)
var AMPERSAND$1 = 0x0026; // U+0026 ANPERSAND (&)
var ASTERISK$3 = 0x002A; // U+002A ASTERISK (*)
var PLUSSIGN$5 = 0x002B; // U+002B PLUS SIGN (+)
var SOLIDUS$2 = 0x002F; // U+002F SOLIDUS (/)
function consumeValueRaw(startToken) {
return this.Raw(startToken, rawMode$2.exclamationMarkOrSemicolon, true);
}
function consumeCustomPropertyRaw(startToken) {
return this.Raw(startToken, rawMode$2.exclamationMarkOrSemicolon, false);
}
function consumeValue() {
var startValueToken = this.scanner.tokenIndex;
var value = this.Value();
if (value.type !== 'Raw' &&
this.scanner.eof === false &&
this.scanner.tokenType !== SEMICOLON$3 &&
this.scanner.isDelim(EXCLAMATIONMARK$2) === false &&
this.scanner.isBalanceEdge(startValueToken) === false) {
this.error();
}
return value;
}
var Declaration = {
name: 'Declaration',
structure: {
important: [Boolean, String],
property: String,
value: ['Value', 'Raw']
},
parse: function() {
var start = this.scanner.tokenStart;
var startToken = this.scanner.tokenIndex;
var property = readProperty$1.call(this);
var customProperty = isCustomProperty$1(property);
var parseValue = customProperty ? this.parseCustomProperty : this.parseValue;
var consumeRaw = customProperty ? consumeCustomPropertyRaw : consumeValueRaw;
var important = false;
var value;
this.scanner.skipSC();
this.eat(COLON$1);
if (!customProperty) {
this.scanner.skipSC();
}
if (parseValue) {
value = this.parseWithFallback(consumeValue, consumeRaw);
} else {
value = consumeRaw.call(this, this.scanner.tokenIndex);
}
if (this.scanner.isDelim(EXCLAMATIONMARK$2)) {
important = getImportant.call(this);
this.scanner.skipSC();
}
// Do not include semicolon to range per spec
// https://drafts.csswg.org/css-syntax/#declaration-diagram
if (this.scanner.eof === false &&
this.scanner.tokenType !== SEMICOLON$3 &&
this.scanner.isBalanceEdge(startToken) === false) {
this.error();
}
return {
type: 'Declaration',
loc: this.getLocation(start, this.scanner.tokenStart),
important: important,
property: property,
value: value
};
},
generate: function(node) {
this.chunk(node.property);
this.chunk(':');
this.node(node.value);
if (node.important) {
this.chunk(node.important === true ? '!important' : '!' + node.important);
}
},
walkContext: 'declaration'
};
function readProperty$1() {
var start = this.scanner.tokenStart;
// hacks
if (this.scanner.tokenType === DELIM$2) {
switch (this.scanner.source.charCodeAt(this.scanner.tokenStart)) {
case ASTERISK$3:
case DOLLARSIGN$1:
case PLUSSIGN$5:
case NUMBERSIGN$2:
case AMPERSAND$1:
this.scanner.next();
break;
// TODO: not sure we should support this hack
case SOLIDUS$2:
this.scanner.next();
if (this.scanner.isDelim(SOLIDUS$2)) {
this.scanner.next();
}
break;
}
}
if (this.scanner.tokenType === HASH$1) {
this.eat(HASH$1);
} else {
this.eat(IDENT$7);
}
return this.scanner.substrToCursor(start);
}
// ! ws* important
function getImportant() {
this.eat(DELIM$2);
this.scanner.skipSC();
var important = this.consume(IDENT$7);
// store original value in case it differ from `important`
// for better original source restoring and hacks like `!ie` support
return important === 'important' ? true : important;
}
var TYPE$k = tokenizer.TYPE;
var rawMode$3 = Raw.mode;
var WHITESPACE$6 = TYPE$k.WhiteSpace;
var COMMENT$6 = TYPE$k.Comment;
var SEMICOLON$4 = TYPE$k.Semicolon;
function consumeRaw$2(startToken) {
return this.Raw(startToken, rawMode$3.semicolonIncluded, true);
}
var DeclarationList = {
name: 'DeclarationList',
structure: {
children: [[
'Declaration'
]]
},
parse: function() {
var children = this.createList();
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case WHITESPACE$6:
case COMMENT$6:
case SEMICOLON$4:
this.scanner.next();
break;
default:
children.push(this.parseWithFallback(this.Declaration, consumeRaw$2));
}
}
return {
type: 'DeclarationList',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node, function(prev) {
if (prev.type === 'Declaration') {
this.chunk(';');
}
});
}
};
var consumeNumber$3 = utils.consumeNumber;
var TYPE$l = tokenizer.TYPE;
var DIMENSION$3 = TYPE$l.Dimension;
var Dimension = {
name: 'Dimension',
structure: {
value: String,
unit: String
},
parse: function() {
var start = this.scanner.tokenStart;
var numberEnd = consumeNumber$3(this.scanner.source, start);
this.eat(DIMENSION$3);
return {
type: 'Dimension',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.source.substring(start, numberEnd),
unit: this.scanner.source.substring(numberEnd, this.scanner.tokenStart)
};
},
generate: function(node) {
this.chunk(node.value);
this.chunk(node.unit);
}
};
var TYPE$m = tokenizer.TYPE;
var RIGHTPARENTHESIS$2 = TYPE$m.RightParenthesis;
// <function-token> <sequence> )
var _Function = {
name: 'Function',
structure: {
name: String,
children: [[]]
},
parse: function(readSequence, recognizer) {
var start = this.scanner.tokenStart;
var name = this.consumeFunctionName();
var nameLowerCase = name.toLowerCase();
var children;
children = recognizer.hasOwnProperty(nameLowerCase)
? recognizer[nameLowerCase].call(this, recognizer)
: readSequence.call(this, recognizer);
if (!this.scanner.eof) {
this.eat(RIGHTPARENTHESIS$2);
}
return {
type: 'Function',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
children: children
};
},
generate: function(node) {
this.chunk(node.name);
this.chunk('(');
this.children(node);
this.chunk(')');
},
walkContext: 'function'
};
var TYPE$n = tokenizer.TYPE;
var HASH$2 = TYPE$n.Hash;
// '#' ident
var HexColor = {
name: 'HexColor',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
this.eat(HASH$2);
return {
type: 'HexColor',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.substrToCursor(start + 1)
};
},
generate: function(node) {
this.chunk('#');
this.chunk(node.value);
}
};
var TYPE$o = tokenizer.TYPE;
var IDENT$8 = TYPE$o.Ident;
var Identifier = {
name: 'Identifier',
structure: {
name: String
},
parse: function() {
return {
type: 'Identifier',
loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
name: this.consume(IDENT$8)
};
},
generate: function(node) {
this.chunk(node.name);
}
};
var TYPE$p = tokenizer.TYPE;
var HASH$3 = TYPE$p.Hash;
// <hash-token>
var IdSelector = {
name: 'IdSelector',
structure: {
name: String
},
parse: function() {
var start = this.scanner.tokenStart;
// TODO: check value is an ident
this.eat(HASH$3);
return {
type: 'IdSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: this.scanner.substrToCursor(start + 1)
};
},
generate: function(node) {
this.chunk('#');
this.chunk(node.name);
}
};
var TYPE$q = tokenizer.TYPE;
var IDENT$9 = TYPE$q.Ident;
var NUMBER$4 = TYPE$q.Number;
var DIMENSION$4 = TYPE$q.Dimension;
var LEFTPARENTHESIS$2 = TYPE$q.LeftParenthesis;
var RIGHTPARENTHESIS$3 = TYPE$q.RightParenthesis;
var COLON$2 = TYPE$q.Colon;
var DELIM$3 = TYPE$q.Delim;
var MediaFeature = {
name: 'MediaFeature',
structure: {
name: String,
value: ['Identifier', 'Number', 'Dimension', 'Ratio', null]
},
parse: function() {
var start = this.scanner.tokenStart;
var name;
var value = null;
this.eat(LEFTPARENTHESIS$2);
this.scanner.skipSC();
name = this.consume(IDENT$9);
this.scanner.skipSC();
if (this.scanner.tokenType !== RIGHTPARENTHESIS$3) {
this.eat(COLON$2);
this.scanner.skipSC();
switch (this.scanner.tokenType) {
case NUMBER$4:
if (this.lookupNonWSType(1) === DELIM$3) {
value = this.Ratio();
} else {
value = this.Number();
}
break;
case DIMENSION$4:
value = this.Dimension();
break;
case IDENT$9:
value = this.Identifier();
break;
default:
this.error('Number, dimension, ratio or identifier is expected');
}
this.scanner.skipSC();
}
this.eat(RIGHTPARENTHESIS$3);
return {
type: 'MediaFeature',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
value: value
};
},
generate: function(node) {
this.chunk('(');
this.chunk(node.name);
if (node.value !== null) {
this.chunk(':');
this.node(node.value);
}
this.chunk(')');
}
};
var TYPE$r = tokenizer.TYPE;
var WHITESPACE$7 = TYPE$r.WhiteSpace;
var COMMENT$7 = TYPE$r.Comment;
var IDENT$a = TYPE$r.Ident;
var LEFTPARENTHESIS$3 = TYPE$r.LeftParenthesis;
var MediaQuery = {
name: 'MediaQuery',
structure: {
children: [[
'Identifier',
'MediaFeature',
'WhiteSpace'
]]
},
parse: function() {
this.scanner.skipSC();
var children = this.createList();
var child = null;
var space = null;
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case COMMENT$7:
this.scanner.next();
continue;
case WHITESPACE$7:
space = this.WhiteSpace();
continue;
case IDENT$a:
child = this.Identifier();
break;
case LEFTPARENTHESIS$3:
child = this.MediaFeature();
break;
default:
break scan;
}
if (space !== null) {
children.push(space);
space = null;
}
children.push(child);
}
if (child === null) {
this.error('Identifier or parenthesis is expected');
}
return {
type: 'MediaQuery',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node);
}
};
var COMMA$1 = tokenizer.TYPE.Comma;
var MediaQueryList = {
name: 'MediaQueryList',
structure: {
children: [[
'MediaQuery'
]]
},
parse: function(relative) {
var children = this.createList();
this.scanner.skipSC();
while (!this.scanner.eof) {
children.push(this.MediaQuery(relative));
if (this.scanner.tokenType !== COMMA$1) {
break;
}
this.scanner.next();
}
return {
type: 'MediaQueryList',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node, function() {
this.chunk(',');
});
}
};
var Nth = {
name: 'Nth',
structure: {
nth: ['AnPlusB', 'Identifier'],
selector: ['SelectorList', null]
},
parse: function(allowOfClause) {
this.scanner.skipSC();
var start = this.scanner.tokenStart;
var end = start;
var selector = null;
var query;
if (this.scanner.lookupValue(0, 'odd') || this.scanner.lookupValue(0, 'even')) {
query = this.Identifier();
} else {
query = this.AnPlusB();
}
this.scanner.skipSC();
if (allowOfClause && this.scanner.lookupValue(0, 'of')) {
this.scanner.next();
selector = this.SelectorList();
if (this.needPositions) {
end = this.getLastListNode(selector.children).loc.end.offset;
}
} else {
if (this.needPositions) {
end = query.loc.end.offset;
}
}
return {
type: 'Nth',
loc: this.getLocation(start, end),
nth: query,
selector: selector
};
},
generate: function(node) {
this.node(node.nth);
if (node.selector !== null) {
this.chunk(' of ');
this.node(node.selector);
}
}
};
var NUMBER$5 = tokenizer.TYPE.Number;
var _Number = {
name: 'Number',
structure: {
value: String
},
parse: function() {
return {
type: 'Number',
loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
value: this.consume(NUMBER$5)
};
},
generate: function(node) {
this.chunk(node.value);
}
};
// '/' | '*' | ',' | ':' | '+' | '-'
var Operator = {
name: 'Operator',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
this.scanner.next();
return {
type: 'Operator',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.substrToCursor(start)
};
},
generate: function(node) {
this.chunk(node.value);
}
};
var TYPE$s = tokenizer.TYPE;
var LEFTPARENTHESIS$4 = TYPE$s.LeftParenthesis;
var RIGHTPARENTHESIS$4 = TYPE$s.RightParenthesis;
var Parentheses = {
name: 'Parentheses',
structure: {
children: [[]]
},
parse: function(readSequence, recognizer) {
var start = this.scanner.tokenStart;
var children = null;
this.eat(LEFTPARENTHESIS$4);
children = readSequence.call(this, recognizer);
if (!this.scanner.eof) {
this.eat(RIGHTPARENTHESIS$4);
}
return {
type: 'Parentheses',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.chunk('(');
this.children(node);
this.chunk(')');
}
};
var consumeNumber$4 = utils.consumeNumber;
var TYPE$t = tokenizer.TYPE;
var PERCENTAGE$1 = TYPE$t.Percentage;
var Percentage = {
name: 'Percentage',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
var numberEnd = consumeNumber$4(this.scanner.source, start);
this.eat(PERCENTAGE$1);
return {
type: 'Percentage',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.source.substring(start, numberEnd)
};
},
generate: function(node) {
this.chunk(node.value);
this.chunk('%');
}
};
var TYPE$u = tokenizer.TYPE;
var IDENT$b = TYPE$u.Ident;
var FUNCTION$1 = TYPE$u.Function;
var COLON$3 = TYPE$u.Colon;
var RIGHTPARENTHESIS$5 = TYPE$u.RightParenthesis;
// : [ <ident> | <function-token> <any-value>? ) ]
var PseudoClassSelector = {
name: 'PseudoClassSelector',
structure: {
name: String,
children: [['Raw'], null]
},
parse: function() {
var start = this.scanner.tokenStart;
var children = null;
var name;
var nameLowerCase;
this.eat(COLON$3);
if (this.scanner.tokenType === FUNCTION$1) {
name = this.consumeFunctionName();
nameLowerCase = name.toLowerCase();
if (this.pseudo.hasOwnProperty(nameLowerCase)) {
this.scanner.skipSC();
children = this.pseudo[nameLowerCase].call(this);
this.scanner.skipSC();
} else {
children = this.createList();
children.push(
this.Raw(this.scanner.tokenIndex, null, false)
);
}
this.eat(RIGHTPARENTHESIS$5);
} else {
name = this.consume(IDENT$b);
}
return {
type: 'PseudoClassSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
children: children
};
},
generate: function(node) {
this.chunk(':');
this.chunk(node.name);
if (node.children !== null) {
this.chunk('(');
this.children(node);
this.chunk(')');
}
},
walkContext: 'function'
};
var TYPE$v = tokenizer.TYPE;
var IDENT$c = TYPE$v.Ident;
var FUNCTION$2 = TYPE$v.Function;
var COLON$4 = TYPE$v.Colon;
var RIGHTPARENTHESIS$6 = TYPE$v.RightParenthesis;
// :: [ <ident> | <function-token> <any-value>? ) ]
var PseudoElementSelector = {
name: 'PseudoElementSelector',
structure: {
name: String,
children: [['Raw'], null]
},
parse: function() {
var start = this.scanner.tokenStart;
var children = null;
var name;
var nameLowerCase;
this.eat(COLON$4);
this.eat(COLON$4);
if (this.scanner.tokenType === FUNCTION$2) {
name = this.consumeFunctionName();
nameLowerCase = name.toLowerCase();
if (this.pseudo.hasOwnProperty(nameLowerCase)) {
this.scanner.skipSC();
children = this.pseudo[nameLowerCase].call(this);
this.scanner.skipSC();
} else {
children = this.createList();
children.push(
this.Raw(this.scanner.tokenIndex, null, false)
);
}
this.eat(RIGHTPARENTHESIS$6);
} else {
name = this.consume(IDENT$c);
}
return {
type: 'PseudoElementSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
children: children
};
},
generate: function(node) {
this.chunk('::');
this.chunk(node.name);
if (node.children !== null) {
this.chunk('(');
this.children(node);
this.chunk(')');
}
},
walkContext: 'function'
};
var isDigit$5 = tokenizer.isDigit;
var TYPE$w = tokenizer.TYPE;
var NUMBER$6 = TYPE$w.Number;
var DELIM$4 = TYPE$w.Delim;
var SOLIDUS$3 = 0x002F; // U+002F SOLIDUS (/)
var FULLSTOP$1 = 0x002E; // U+002E FULL STOP (.)
// Terms of <ratio> should be a positive numbers (not zero or negative)
// (see https://drafts.csswg.org/mediaqueries-3/#values)
// However, -o-min-device-pixel-ratio takes fractional values as a ratio's term
// and this is using by various sites. Therefore we relax checking on parse
// to test a term is unsigned number without an exponent part.
// Additional checking may be applied on lexer validation.
function consumeNumber$5() {
this.scanner.skipWS();
var value = this.consume(NUMBER$6);
for (var i = 0; i < value.length; i++) {
var code = value.charCodeAt(i);
if (!isDigit$5(code) && code !== FULLSTOP$1) {
this.error('Unsigned number is expected', this.scanner.tokenStart - value.length + i);
}
}
if (Number(value) === 0) {
this.error('Zero number is not allowed', this.scanner.tokenStart - value.length);
}
return value;
}
// <positive-integer> S* '/' S* <positive-integer>
var Ratio = {
name: 'Ratio',
structure: {
left: String,
right: String
},
parse: function() {
var start = this.scanner.tokenStart;
var left = consumeNumber$5.call(this);
var right;
this.scanner.skipWS();
if (!this.scanner.isDelim(SOLIDUS$3)) {
this.error('Solidus is expected');
}
this.eat(DELIM$4);
right = consumeNumber$5.call(this);
return {
type: 'Ratio',
loc: this.getLocation(start, this.scanner.tokenStart),
left: left,
right: right
};
},
generate: function(node) {
this.chunk(node.left);
this.chunk('/');
this.chunk(node.right);
}
};
var TYPE$x = tokenizer.TYPE;
var rawMode$4 = Raw.mode;
var LEFTCURLYBRACKET$4 = TYPE$x.LeftCurlyBracket;
function consumeRaw$3(startToken) {
return this.Raw(startToken, rawMode$4.leftCurlyBracket, true);
}
function consumePrelude() {
var prelude = this.SelectorList();
if (prelude.type !== 'Raw' &&
this.scanner.eof === false &&
this.scanner.tokenType !== LEFTCURLYBRACKET$4) {
this.error();
}
return prelude;
}
var Rule = {
name: 'Rule',
structure: {
prelude: ['SelectorList', 'Raw'],
block: ['Block']
},
parse: function() {
var startToken = this.scanner.tokenIndex;
var startOffset = this.scanner.tokenStart;
var prelude;
var block;
if (this.parseRulePrelude) {
prelude = this.parseWithFallback(consumePrelude, consumeRaw$3);
} else {
prelude = consumeRaw$3.call(this, startToken);
}
block = this.Block(true);
return {
type: 'Rule',
loc: this.getLocation(startOffset, this.scanner.tokenStart),
prelude: prelude,
block: block
};
},
generate: function(node) {
this.node(node.prelude);
this.node(node.block);
},
walkContext: 'rule'
};
var Selector = {
name: 'Selector',
structure: {
children: [[
'TypeSelector',
'IdSelector',
'ClassSelector',
'AttributeSelector',
'PseudoClassSelector',
'PseudoElementSelector',
'Combinator',
'WhiteSpace'
]]
},
parse: function() {
var children = this.readSequence(this.scope.Selector);
// nothing were consumed
if (this.getFirstListNode(children) === null) {
this.error('Selector is expected');
}
return {
type: 'Selector',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node);
}
};
var TYPE$y = tokenizer.TYPE;
var COMMA$2 = TYPE$y.Comma;
var SelectorList = {
name: 'SelectorList',
structure: {
children: [[
'Selector',
'Raw'
]]
},
parse: function() {
var children = this.createList();
while (!this.scanner.eof) {
children.push(this.Selector());
if (this.scanner.tokenType === COMMA$2) {
this.scanner.next();
continue;
}
break;
}
return {
type: 'SelectorList',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node, function() {
this.chunk(',');
});
},
walkContext: 'selector'
};
var STRING$1 = tokenizer.TYPE.String;
var _String = {
name: 'String',
structure: {
value: String
},
parse: function() {
return {
type: 'String',
loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
value: this.consume(STRING$1)
};
},
generate: function(node) {
this.chunk(node.value);
}
};
var TYPE$z = tokenizer.TYPE;
var WHITESPACE$8 = TYPE$z.WhiteSpace;
var COMMENT$8 = TYPE$z.Comment;
var ATKEYWORD$2 = TYPE$z.AtKeyword;
var CDO$1 = TYPE$z.CDO;
var CDC$1 = TYPE$z.CDC;
var EXCLAMATIONMARK$3 = 0x0021; // U+0021 EXCLAMATION MARK (!)
function consumeRaw$4(startToken) {
return this.Raw(startToken, null, false);
}
var StyleSheet = {
name: 'StyleSheet',
structure: {
children: [[
'Comment',
'CDO',
'CDC',
'Atrule',
'Rule',
'Raw'
]]
},
parse: function() {
var start = this.scanner.tokenStart;
var children = this.createList();
var child;
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case WHITESPACE$8:
this.scanner.next();
continue;
case COMMENT$8:
// ignore comments except exclamation comments (i.e. /*! .. */) on top level
if (this.scanner.source.charCodeAt(this.scanner.tokenStart + 2) !== EXCLAMATIONMARK$3) {
this.scanner.next();
continue;
}
child = this.Comment();
break;
case CDO$1: // <!--
child = this.CDO();
break;
case CDC$1: // -->
child = this.CDC();
break;
// CSS Syntax Module Level 3
// §2.2 Error handling
// At the "top level" of a stylesheet, an <at-keyword-token> starts an at-rule.
case ATKEYWORD$2:
child = this.parseWithFallback(this.Atrule, consumeRaw$4);
break;
// Anything else starts a qualified rule ...
default:
child = this.parseWithFallback(this.Rule, consumeRaw$4);
}
children.push(child);
}
return {
type: 'StyleSheet',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.children(node);
},
walkContext: 'stylesheet'
};
var TYPE$A = tokenizer.TYPE;
var IDENT$d = TYPE$A.Ident;
var ASTERISK$4 = 0x002A; // U+002A ASTERISK (*)
var VERTICALLINE$2 = 0x007C; // U+007C VERTICAL LINE (|)
function eatIdentifierOrAsterisk() {
if (this.scanner.tokenType !== IDENT$d &&
this.scanner.isDelim(ASTERISK$4) === false) {
this.error('Identifier or asterisk is expected');
}
this.scanner.next();
}
// ident
// ident|ident
// ident|*
// *
// *|ident
// *|*
// |ident
// |*
var TypeSelector = {
name: 'TypeSelector',
structure: {
name: String
},
parse: function() {
var start = this.scanner.tokenStart;
if (this.scanner.isDelim(VERTICALLINE$2)) {
this.scanner.next();
eatIdentifierOrAsterisk.call(this);
} else {
eatIdentifierOrAsterisk.call(this);
if (this.scanner.isDelim(VERTICALLINE$2)) {
this.scanner.next();
eatIdentifierOrAsterisk.call(this);
}
}
return {
type: 'TypeSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: this.scanner.substrToCursor(start)
};
},
generate: function(node) {
this.chunk(node.name);
}
};
var isHexDigit$4 = tokenizer.isHexDigit;
var cmpChar$4 = tokenizer.cmpChar;
var TYPE$B = tokenizer.TYPE;
var NAME$3 = tokenizer.NAME;
var IDENT$e = TYPE$B.Ident;
var NUMBER$7 = TYPE$B.Number;
var DIMENSION$5 = TYPE$B.Dimension;
var PLUSSIGN$6 = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS$4 = 0x002D; // U+002D HYPHEN-MINUS (-)
var QUESTIONMARK$2 = 0x003F; // U+003F QUESTION MARK (?)
var U$1 = 0x0075; // U+0075 LATIN SMALL LETTER U (u)
function eatHexSequence(offset, allowDash) {
for (var pos = this.scanner.tokenStart + offset, len = 0; pos < this.scanner.tokenEnd; pos++) {
var code = this.scanner.source.charCodeAt(pos);
if (code === HYPHENMINUS$4 && allowDash && len !== 0) {
if (eatHexSequence.call(this, offset + len + 1, false) === 0) {
this.error();
}
return -1;
}
if (!isHexDigit$4(code)) {
this.error(
allowDash && len !== 0
? 'HyphenMinus' + (len < 6 ? ' or hex digit' : '') + ' is expected'
: (len < 6 ? 'Hex digit is expected' : 'Unexpected input'),
pos
);
}
if (++len > 6) {
this.error('Too many hex digits', pos);
} }
this.scanner.next();
return len;
}
function eatQuestionMarkSequence(max) {
var count = 0;
while (this.scanner.isDelim(QUESTIONMARK$2)) {
if (++count > max) {
this.error('Too many question marks');
}
this.scanner.next();
}
}
function startsWith$1(code) {
if (this.scanner.source.charCodeAt(this.scanner.tokenStart) !== code) {
this.error(NAME$3[code] + ' is expected');
}
}
// https://drafts.csswg.org/css-syntax/#urange
// Informally, the <urange> production has three forms:
// U+0001
// Defines a range consisting of a single code point, in this case the code point "1".
// U+0001-00ff
// Defines a range of codepoints between the first and the second value, in this case
// the range between "1" and "ff" (255 in decimal) inclusive.
// U+00??
// Defines a range of codepoints where the "?" characters range over all hex digits,
// in this case defining the same as the value U+0000-00ff.
// In each form, a maximum of 6 digits is allowed for each hexadecimal number (if you treat "?" as a hexadecimal digit).
//
// <urange> =
// u '+' <ident-token> '?'* |
// u <dimension-token> '?'* |
// u <number-token> '?'* |
// u <number-token> <dimension-token> |
// u <number-token> <number-token> |
// u '+' '?'+
function scanUnicodeRange() {
var hexLength = 0;
// u '+' <ident-token> '?'*
// u '+' '?'+
if (this.scanner.isDelim(PLUSSIGN$6)) {
this.scanner.next();
if (this.scanner.tokenType === IDENT$e) {
hexLength = eatHexSequence.call(this, 0, true);
if (hexLength > 0) {
eatQuestionMarkSequence.call(this, 6 - hexLength);
}
return;
}
if (this.scanner.isDelim(QUESTIONMARK$2)) {
this.scanner.next();
eatQuestionMarkSequence.call(this, 5);
return;
}
this.error('Hex digit or question mark is expected');
return;
}
// u <number-token> '?'*
// u <number-token> <dimension-token>
// u <number-token> <number-token>
if (this.scanner.tokenType === NUMBER$7) {
startsWith$1.call(this, PLUSSIGN$6);
hexLength = eatHexSequence.call(this, 1, true);
if (this.scanner.isDelim(QUESTIONMARK$2)) {
eatQuestionMarkSequence.call(this, 6 - hexLength);
return;
}
if (this.scanner.tokenType === DIMENSION$5 ||
this.scanner.tokenType === NUMBER$7) {
startsWith$1.call(this, HYPHENMINUS$4);
eatHexSequence.call(this, 1, false);
return;
}
return;
}
// u <dimension-token> '?'*
if (this.scanner.tokenType === DIMENSION$5) {
startsWith$1.call(this, PLUSSIGN$6);
hexLength = eatHexSequence.call(this, 1, true);
if (hexLength > 0) {
eatQuestionMarkSequence.call(this, 6 - hexLength);
}
return;
}
this.error();
}
var UnicodeRange = {
name: 'UnicodeRange',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
// U or u
if (!cmpChar$4(this.scanner.source, start, U$1)) {
this.error('U is expected');
}
if (!cmpChar$4(this.scanner.source, start + 1, PLUSSIGN$6)) {
this.error('Plus sign is expected');
}
this.scanner.next();
scanUnicodeRange.call(this);
return {
type: 'UnicodeRange',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.substrToCursor(start)
};
},
generate: function(node) {
this.chunk(node.value);
}
};
var isWhiteSpace$2 = tokenizer.isWhiteSpace;
var cmpStr$4 = tokenizer.cmpStr;
var TYPE$C = tokenizer.TYPE;
var FUNCTION$3 = TYPE$C.Function;
var URL$1 = TYPE$C.Url;
var RIGHTPARENTHESIS$7 = TYPE$C.RightParenthesis;
// <url-token> | <function-token> <string> )
var Url = {
name: 'Url',
structure: {
value: ['String', 'Raw']
},
parse: function() {
var start = this.scanner.tokenStart;
var value;
switch (this.scanner.tokenType) {
case URL$1:
var rawStart = start + 4;
var rawEnd = this.scanner.tokenEnd - 1;
while (rawStart < rawEnd && isWhiteSpace$2(this.scanner.source.charCodeAt(rawStart))) {
rawStart++;
}
while (rawStart < rawEnd && isWhiteSpace$2(this.scanner.source.charCodeAt(rawEnd - 1))) {
rawEnd--;
}
value = {
type: 'Raw',
loc: this.getLocation(rawStart, rawEnd),
value: this.scanner.source.substring(rawStart, rawEnd)
};
this.eat(URL$1);
break;
case FUNCTION$3:
if (!cmpStr$4(this.scanner.source, this.scanner.tokenStart, this.scanner.tokenEnd, 'url(')) {
this.error('Function name must be `url`');
}
this.eat(FUNCTION$3);
this.scanner.skipSC();
value = this.String();
this.scanner.skipSC();
this.eat(RIGHTPARENTHESIS$7);
break;
default:
this.error('Url or Function is expected');
}
return {
type: 'Url',
loc: this.getLocation(start, this.scanner.tokenStart),
value: value
};
},
generate: function(node) {
this.chunk('url');
this.chunk('(');
this.node(node.value);
this.chunk(')');
}
};
var Value = {
name: 'Value',
structure: {
children: [[]]
},
parse: function() {
var start = this.scanner.tokenStart;
var children = this.readSequence(this.scope.Value);
return {
type: 'Value',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.children(node);
}
};
var WHITESPACE$9 = tokenizer.TYPE.WhiteSpace;
var SPACE$2 = Object.freeze({
type: 'WhiteSpace',
loc: null,
value: ' '
});
var WhiteSpace$1 = {
name: 'WhiteSpace',
structure: {
value: String
},
parse: function() {
this.eat(WHITESPACE$9);
return SPACE$2;
// return {
// type: 'WhiteSpace',
// loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
// value: this.consume(WHITESPACE)
// };
},
generate: function(node) {
this.chunk(node.value);
}
};
var node = {
AnPlusB: AnPlusB,
Atrule: Atrule,
AtrulePrelude: AtrulePrelude,
AttributeSelector: AttributeSelector,
Block: Block,
Brackets: Brackets,
CDC: CDC_1,
CDO: CDO_1,
ClassSelector: ClassSelector,
Combinator: Combinator,
Comment: Comment,
Declaration: Declaration,
DeclarationList: DeclarationList,
Dimension: Dimension,
Function: _Function,
HexColor: HexColor,
Identifier: Identifier,
IdSelector: IdSelector,
MediaFeature: MediaFeature,
MediaQuery: MediaQuery,
MediaQueryList: MediaQueryList,
Nth: Nth,
Number: _Number,
Operator: Operator,
Parentheses: Parentheses,
Percentage: Percentage,
PseudoClassSelector: PseudoClassSelector,
PseudoElementSelector: PseudoElementSelector,
Ratio: Ratio,
Raw: Raw,
Rule: Rule,
Selector: Selector,
SelectorList: SelectorList,
String: _String,
StyleSheet: StyleSheet,
TypeSelector: TypeSelector,
UnicodeRange: UnicodeRange,
Url: Url,
Value: Value,
WhiteSpace: WhiteSpace$1
};
var data = getCjsExportFromNamespace(defaultSyntax$1);
var lexer = {
generic: true,
types: data.types,
properties: data.properties,
node: node
};
var cmpChar$5 = tokenizer.cmpChar;
var cmpStr$5 = tokenizer.cmpStr;
var TYPE$D = tokenizer.TYPE;
var IDENT$f = TYPE$D.Ident;
var STRING$2 = TYPE$D.String;
var NUMBER$8 = TYPE$D.Number;
var FUNCTION$4 = TYPE$D.Function;
var URL$2 = TYPE$D.Url;
var HASH$4 = TYPE$D.Hash;
var DIMENSION$6 = TYPE$D.Dimension;
var PERCENTAGE$2 = TYPE$D.Percentage;
var LEFTPARENTHESIS$5 = TYPE$D.LeftParenthesis;
var LEFTSQUAREBRACKET$3 = TYPE$D.LeftSquareBracket;
var COMMA$3 = TYPE$D.Comma;
var DELIM$5 = TYPE$D.Delim;
var NUMBERSIGN$3 = 0x0023; // U+0023 NUMBER SIGN (#)
var ASTERISK$5 = 0x002A; // U+002A ASTERISK (*)
var PLUSSIGN$7 = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS$5 = 0x002D; // U+002D HYPHEN-MINUS (-)
var SOLIDUS$4 = 0x002F; // U+002F SOLIDUS (/)
var U$2 = 0x0075; // U+0075 LATIN SMALL LETTER U (u)
var _default = function defaultRecognizer(context) {
switch (this.scanner.tokenType) {
case HASH$4:
return this.HexColor();
case COMMA$3:
context.space = null;
context.ignoreWSAfter = true;
return this.Operator();
case LEFTPARENTHESIS$5:
return this.Parentheses(this.readSequence, context.recognizer);
case LEFTSQUAREBRACKET$3:
return this.Brackets(this.readSequence, context.recognizer);
case STRING$2:
return this.String();
case DIMENSION$6:
return this.Dimension();
case PERCENTAGE$2:
return this.Percentage();
case NUMBER$8:
return this.Number();
case FUNCTION$4:
return cmpStr$5(this.scanner.source, this.scanner.tokenStart, this.scanner.tokenEnd, 'url(')
? this.Url()
: this.Function(this.readSequence, context.recognizer);
case URL$2:
return this.Url();
case IDENT$f:
// check for unicode range, it should start with u+ or U+
if (cmpChar$5(this.scanner.source, this.scanner.tokenStart, U$2) &&
cmpChar$5(this.scanner.source, this.scanner.tokenStart + 1, PLUSSIGN$7)) {
return this.UnicodeRange();
} else {
return this.Identifier();
}
case DELIM$5:
var code = this.scanner.source.charCodeAt(this.scanner.tokenStart);
if (code === SOLIDUS$4 ||
code === ASTERISK$5 ||
code === PLUSSIGN$7 ||
code === HYPHENMINUS$5) {
return this.Operator(); // TODO: replace with Delim
}
// TODO: produce a node with Delim node type
if (code === NUMBERSIGN$3) {
this.error('Hex or identifier is expected', this.scanner.tokenStart + 1);
}
break;
}
};
var atrulePrelude = {
getNode: _default
};
var TYPE$E = tokenizer.TYPE;
var DELIM$6 = TYPE$E.Delim;
var IDENT$g = TYPE$E.Ident;
var DIMENSION$7 = TYPE$E.Dimension;
var PERCENTAGE$3 = TYPE$E.Percentage;
var NUMBER$9 = TYPE$E.Number;
var HASH$5 = TYPE$E.Hash;
var COLON$5 = TYPE$E.Colon;
var LEFTSQUAREBRACKET$4 = TYPE$E.LeftSquareBracket;
var NUMBERSIGN$4 = 0x0023; // U+0023 NUMBER SIGN (#)
var ASTERISK$6 = 0x002A; // U+002A ASTERISK (*)
var PLUSSIGN$8 = 0x002B; // U+002B PLUS SIGN (+)
var SOLIDUS$5 = 0x002F; // U+002F SOLIDUS (/)
var FULLSTOP$2 = 0x002E; // U+002E FULL STOP (.)
var GREATERTHANSIGN$2 = 0x003E; // U+003E GREATER-THAN SIGN (>)
var VERTICALLINE$3 = 0x007C; // U+007C VERTICAL LINE (|)
var TILDE$2 = 0x007E; // U+007E TILDE (~)
function getNode(context) {
switch (this.scanner.tokenType) {
case LEFTSQUAREBRACKET$4:
return this.AttributeSelector();
case HASH$5:
return this.IdSelector();
case COLON$5:
if (this.scanner.lookupType(1) === COLON$5) {
return this.PseudoElementSelector();
} else {
return this.PseudoClassSelector();
}
case IDENT$g:
return this.TypeSelector();
case NUMBER$9:
case PERCENTAGE$3:
return this.Percentage();
case DIMENSION$7:
// throws when .123ident
if (this.scanner.source.charCodeAt(this.scanner.tokenStart) === FULLSTOP$2) {
this.error('Identifier is expected', this.scanner.tokenStart + 1);
}
break;
case DELIM$6:
var code = this.scanner.source.charCodeAt(this.scanner.tokenStart);
switch (code) {
case PLUSSIGN$8:
case GREATERTHANSIGN$2:
case TILDE$2:
context.space = null;
context.ignoreWSAfter = true;
return this.Combinator();
case SOLIDUS$5: // /deep/
return this.Combinator();
case FULLSTOP$2:
return this.ClassSelector();
case ASTERISK$6:
case VERTICALLINE$3:
return this.TypeSelector();
case NUMBERSIGN$4:
return this.IdSelector();
}
break;
}
}
var selector = {
getNode: getNode
};
// https://drafts.csswg.org/css-images-4/#element-notation
// https://developer.mozilla.org/en-US/docs/Web/CSS/element
var element = function() {
this.scanner.skipSC();
var children = this.createSingleNodeList(
this.IdSelector()
);
this.scanner.skipSC();
return children;
};
// legacy IE function
// expression( <any-value> )
var expression = function() {
return this.createSingleNodeList(
this.Raw(this.scanner.tokenIndex, null, false)
);
};
var TYPE$F = tokenizer.TYPE;
var rawMode$5 = Raw.mode;
var COMMA$4 = TYPE$F.Comma;
// var( <ident> , <value>? )
var _var = function() {
var children = this.createList();
this.scanner.skipSC();
// NOTE: Don't check more than a first argument is an ident, rest checks are for lexer
children.push(this.Identifier());
this.scanner.skipSC();
if (this.scanner.tokenType === COMMA$4) {
children.push(this.Operator());
children.push(this.parseCustomProperty
? this.Value(null)
: this.Raw(this.scanner.tokenIndex, rawMode$5.exclamationMarkOrSemicolon, false)
);
}
return children;
};
var value = {
getNode: _default,
'-moz-element': element,
'element': element,
'expression': expression,
'var': _var
};
var scope = {
AtrulePrelude: atrulePrelude,
Selector: selector,
Value: value
};
var fontFace = {
parse: {
prelude: null,
block: function() {
return this.Block(true);
}
}
};
var TYPE$G = tokenizer.TYPE;
var STRING$3 = TYPE$G.String;
var IDENT$h = TYPE$G.Ident;
var URL$3 = TYPE$G.Url;
var FUNCTION$5 = TYPE$G.Function;
var LEFTPARENTHESIS$6 = TYPE$G.LeftParenthesis;
var _import = {
parse: {
prelude: function() {
var children = this.createList();
this.scanner.skipSC();
switch (this.scanner.tokenType) {
case STRING$3:
children.push(this.String());
break;
case URL$3:
case FUNCTION$5:
children.push(this.Url());
break;
default:
this.error('String or url() is expected');
}
if (this.lookupNonWSType(0) === IDENT$h ||
this.lookupNonWSType(0) === LEFTPARENTHESIS$6) {
children.push(this.WhiteSpace());
children.push(this.MediaQueryList());
}
return children;
},
block: null
}
};
var media = {
parse: {
prelude: function() {
return this.createSingleNodeList(
this.MediaQueryList()
);
},
block: function() {
return this.Block(false);
}
}
};
var page = {
parse: {
prelude: function() {
return this.createSingleNodeList(
this.SelectorList()
);
},
block: function() {
return this.Block(true);
}
}
};
var TYPE$H = tokenizer.TYPE;
var WHITESPACE$a = TYPE$H.WhiteSpace;
var COMMENT$9 = TYPE$H.Comment;
var IDENT$i = TYPE$H.Ident;
var FUNCTION$6 = TYPE$H.Function;
var COLON$6 = TYPE$H.Colon;
var LEFTPARENTHESIS$7 = TYPE$H.LeftParenthesis;
function consumeRaw$5() {
return this.createSingleNodeList(
this.Raw(this.scanner.tokenIndex, null, false)
);
}
function parentheses() {
this.scanner.skipSC();
if (this.scanner.tokenType === IDENT$i &&
this.lookupNonWSType(1) === COLON$6) {
return this.createSingleNodeList(
this.Declaration()
);
}
return readSequence.call(this);
}
function readSequence() {
var children = this.createList();
var space = null;
var child;
this.scanner.skipSC();
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case WHITESPACE$a:
space = this.WhiteSpace();
continue;
case COMMENT$9:
this.scanner.next();
continue;
case FUNCTION$6:
child = this.Function(consumeRaw$5, this.scope.AtrulePrelude);
break;
case IDENT$i:
child = this.Identifier();
break;
case LEFTPARENTHESIS$7:
child = this.Parentheses(parentheses, this.scope.AtrulePrelude);
break;
default:
break scan;
}
if (space !== null) {
children.push(space);
space = null;
}
children.push(child);
}
return children;
}
var supports = {
parse: {
prelude: function() {
var children = readSequence.call(this);
if (this.getFirstListNode(children) === null) {
this.error('Condition is expected');
}
return children;
},
block: function() {
return this.Block(false);
}
}
};
var atrule = {
'font-face': fontFace,
'import': _import,
'media': media,
'page': page,
'supports': supports
};
var dir = {
parse: function() {
return this.createSingleNodeList(
this.Identifier()
);
}
};
var has$1 = {
parse: function() {
return this.createSingleNodeList(
this.SelectorList()
);
}
};
var lang = {
parse: function() {
return this.createSingleNodeList(
this.Identifier()
);
}
};
var selectorList = {
parse: function selectorList() {
return this.createSingleNodeList(
this.SelectorList()
);
}
};
var matches = selectorList;
var not = selectorList;
var ALLOW_OF_CLAUSE = true;
var nthWithOfClause = {
parse: function nthWithOfClause() {
return this.createSingleNodeList(
this.Nth(ALLOW_OF_CLAUSE)
);
}
};
var nthChild = nthWithOfClause;
var nthLastChild = nthWithOfClause;
var DISALLOW_OF_CLAUSE = false;
var nth = {
parse: function nth() {
return this.createSingleNodeList(
this.Nth(DISALLOW_OF_CLAUSE)
);
}
};
var nthLastOfType = nth;
var nthOfType = nth;
var slotted = {
parse: function compoundSelector() {
return this.createSingleNodeList(
this.Selector()
);
}
};
var pseudo = {
'dir': dir,
'has': has$1,
'lang': lang,
'matches': matches,
'not': not,
'nth-child': nthChild,
'nth-last-child': nthLastChild,
'nth-last-of-type': nthLastOfType,
'nth-of-type': nthOfType,
'slotted': slotted
};
var parser = {
parseContext: {
default: 'StyleSheet',
stylesheet: 'StyleSheet',
atrule: 'Atrule',
atrulePrelude: function(options) {
return this.AtrulePrelude(options.atrule ? String(options.atrule) : null);
},
mediaQueryList: 'MediaQueryList',
mediaQuery: 'MediaQuery',
rule: 'Rule',
selectorList: 'SelectorList',
selector: 'Selector',
block: function() {
return this.Block(true);
},
declarationList: 'DeclarationList',
declaration: 'Declaration',
value: 'Value'
},
scope: scope,
atrule: atrule,
pseudo: pseudo,
node: node
};
var walker = {
node: node
};
function merge() {
var dest = {};
for (var i = 0; i < arguments.length; i++) {
var src = arguments[i];
for (var key in src) {
dest[key] = src[key];
}
}
return dest;
}
var syntax = create$4.create(
merge(
lexer,
parser,
walker
)
);
var lib = syntax;
return lib;
}));