home/beautybuzzbeyond/public_html/wp-includes/js/codemirror/csslint.js 0000644 00001314261 14720007756 0022453 0 ustar 00 /*!
CSSLint v1.0.4
Copyright (c) 2016 Nicole Sullivan and Nicholas C. Zakas. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the 'Software'), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
var CSSLint = (function(){
var module = module || {},
exports = exports || {};
/*!
Parser-Lib
Copyright (c) 2009-2016 Nicholas C. Zakas. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
/* Version v1.1.0, Build time: 6-December-2016 10:31:29 */
var parserlib = (function () {
var require;
require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o).
* @namespace parserlib.css
* @class Combinator
* @extends parserlib.util.SyntaxUnit
* @constructor
* @param {String} text The text representation of the unit.
* @param {int} line The line of text on which the unit resides.
* @param {int} col The column of text on which the unit resides.
*/
function Combinator(text, line, col) {
SyntaxUnit.call(this, text, line, col, Parser.COMBINATOR_TYPE);
/**
* The type of modifier.
* @type String
* @property type
*/
this.type = "unknown";
//pretty simple
if (/^\s+$/.test(text)) {
this.type = "descendant";
} else if (text === ">") {
this.type = "child";
} else if (text === "+") {
this.type = "adjacent-sibling";
} else if (text === "~") {
this.type = "sibling";
}
}
Combinator.prototype = new SyntaxUnit();
Combinator.prototype.constructor = Combinator;
},{"../util/SyntaxUnit":26,"./Parser":6}],3:[function(require,module,exports){
"use strict";
module.exports = Matcher;
var StringReader = require("../util/StringReader");
var SyntaxError = require("../util/SyntaxError");
/**
* This class implements a combinator library for matcher functions.
* The combinators are described at:
* https://developer.mozilla.org/en-US/docs/Web/CSS/Value_definition_syntax#Component_value_combinators
*/
function Matcher(matchFunc, toString) {
this.match = function(expression) {
// Save/restore marks to ensure that failed matches always restore
// the original location in the expression.
var result;
expression.mark();
result = matchFunc(expression);
if (result) {
expression.drop();
} else {
expression.restore();
}
return result;
};
this.toString = typeof toString === "function" ? toString : function() {
return toString;
};
}
/** Precedence table of combinators. */
Matcher.prec = {
MOD: 5,
SEQ: 4,
ANDAND: 3,
OROR: 2,
ALT: 1
};
/** Simple recursive-descent grammar to build matchers from strings. */
Matcher.parse = function(str) {
var reader, eat, expr, oror, andand, seq, mod, term, result;
reader = new StringReader(str);
eat = function(matcher) {
var result = reader.readMatch(matcher);
if (result === null) {
throw new SyntaxError(
"Expected "+matcher, reader.getLine(), reader.getCol());
}
return result;
};
expr = function() {
// expr = oror (" | " oror)*
var m = [ oror() ];
while (reader.readMatch(" | ") !== null) {
m.push(oror());
}
return m.length === 1 ? m[0] : Matcher.alt.apply(Matcher, m);
};
oror = function() {
// oror = andand ( " || " andand)*
var m = [ andand() ];
while (reader.readMatch(" || ") !== null) {
m.push(andand());
}
return m.length === 1 ? m[0] : Matcher.oror.apply(Matcher, m);
};
andand = function() {
// andand = seq ( " && " seq)*
var m = [ seq() ];
while (reader.readMatch(" && ") !== null) {
m.push(seq());
}
return m.length === 1 ? m[0] : Matcher.andand.apply(Matcher, m);
};
seq = function() {
// seq = mod ( " " mod)*
var m = [ mod() ];
while (reader.readMatch(/^ (?![&|\]])/) !== null) {
m.push(mod());
}
return m.length === 1 ? m[0] : Matcher.seq.apply(Matcher, m);
};
mod = function() {
// mod = term ( "?" | "*" | "+" | "#" | "{,}" )?
var m = term();
if (reader.readMatch("?") !== null) {
return m.question();
} else if (reader.readMatch("*") !== null) {
return m.star();
} else if (reader.readMatch("+") !== null) {
return m.plus();
} else if (reader.readMatch("#") !== null) {
return m.hash();
} else if (reader.readMatch(/^\{\s*/) !== null) {
var min = eat(/^\d+/);
eat(/^\s*,\s*/);
var max = eat(/^\d+/);
eat(/^\s*\}/);
return m.braces(+min, +max);
}
return m;
};
term = function() {
// term = | literal | "[ " expression " ]"
if (reader.readMatch("[ ") !== null) {
var m = expr();
eat(" ]");
return m;
}
return Matcher.fromType(eat(/^[^ ?*+#{]+/));
};
result = expr();
if (!reader.eof()) {
throw new SyntaxError(
"Expected end of string", reader.getLine(), reader.getCol());
}
return result;
};
/**
* Convert a string to a matcher (parsing simple alternations),
* or do nothing if the argument is already a matcher.
*/
Matcher.cast = function(m) {
if (m instanceof Matcher) {
return m;
}
return Matcher.parse(m);
};
/**
* Create a matcher for a single type.
*/
Matcher.fromType = function(type) {
// Late require of ValidationTypes to break a dependency cycle.
var ValidationTypes = require("./ValidationTypes");
return new Matcher(function(expression) {
return expression.hasNext() && ValidationTypes.isType(expression, type);
}, type);
};
/**
* Create a matcher for one or more juxtaposed words, which all must
* occur, in the given order.
*/
Matcher.seq = function() {
var ms = Array.prototype.slice.call(arguments).map(Matcher.cast);
if (ms.length === 1) {
return ms[0];
}
return new Matcher(function(expression) {
var i, result = true;
for (i = 0; result && i < ms.length; i++) {
result = ms[i].match(expression);
}
return result;
}, function(prec) {
var p = Matcher.prec.SEQ;
var s = ms.map(function(m) {
return m.toString(p);
}).join(" ");
if (prec > p) {
s = "[ " + s + " ]";
}
return s;
});
};
/**
* Create a matcher for one or more alternatives, where exactly one
* must occur.
*/
Matcher.alt = function() {
var ms = Array.prototype.slice.call(arguments).map(Matcher.cast);
if (ms.length === 1) {
return ms[0];
}
return new Matcher(function(expression) {
var i, result = false;
for (i = 0; !result && i < ms.length; i++) {
result = ms[i].match(expression);
}
return result;
}, function(prec) {
var p = Matcher.prec.ALT;
var s = ms.map(function(m) {
return m.toString(p);
}).join(" | ");
if (prec > p) {
s = "[ " + s + " ]";
}
return s;
});
};
/**
* Create a matcher for two or more options. This implements the
* double bar (||) and double ampersand (&&) operators, as well as
* variants of && where some of the alternatives are optional.
* This will backtrack through even successful matches to try to
* maximize the number of items matched.
*/
Matcher.many = function(required) {
var ms = Array.prototype.slice.call(arguments, 1).reduce(function(acc, v) {
if (v.expand) {
// Insert all of the options for the given complex rule as
// individual options.
var ValidationTypes = require("./ValidationTypes");
acc.push.apply(acc, ValidationTypes.complex[v.expand].options);
} else {
acc.push(Matcher.cast(v));
}
return acc;
}, []);
if (required === true) {
required = ms.map(function() {
return true;
});
}
var result = new Matcher(function(expression) {
var seen = [], max = 0, pass = 0;
var success = function(matchCount) {
if (pass === 0) {
max = Math.max(matchCount, max);
return matchCount === ms.length;
} else {
return matchCount === max;
}
};
var tryMatch = function(matchCount) {
for (var i = 0; i < ms.length; i++) {
if (seen[i]) {
continue;
}
expression.mark();
if (ms[i].match(expression)) {
seen[i] = true;
// Increase matchCount iff this was a required element
// (or if all the elements are optional)
if (tryMatch(matchCount + ((required === false || required[i]) ? 1 : 0))) {
expression.drop();
return true;
}
// Backtrack: try *not* matching using this rule, and
// let's see if it leads to a better overall match.
expression.restore();
seen[i] = false;
} else {
expression.drop();
}
}
return success(matchCount);
};
if (!tryMatch(0)) {
// Couldn't get a complete match, retrace our steps to make the
// match with the maximum # of required elements.
pass++;
tryMatch(0);
}
if (required === false) {
return max > 0;
}
// Use finer-grained specification of which matchers are required.
for (var i = 0; i < ms.length; i++) {
if (required[i] && !seen[i]) {
return false;
}
}
return true;
}, function(prec) {
var p = required === false ? Matcher.prec.OROR : Matcher.prec.ANDAND;
var s = ms.map(function(m, i) {
if (required !== false && !required[i]) {
return m.toString(Matcher.prec.MOD) + "?";
}
return m.toString(p);
}).join(required === false ? " || " : " && ");
if (prec > p) {
s = "[ " + s + " ]";
}
return s;
});
result.options = ms;
return result;
};
/**
* Create a matcher for two or more options, where all options are
* mandatory but they may appear in any order.
*/
Matcher.andand = function() {
var args = Array.prototype.slice.call(arguments);
args.unshift(true);
return Matcher.many.apply(Matcher, args);
};
/**
* Create a matcher for two or more options, where options are
* optional and may appear in any order, but at least one must be
* present.
*/
Matcher.oror = function() {
var args = Array.prototype.slice.call(arguments);
args.unshift(false);
return Matcher.many.apply(Matcher, args);
};
/** Instance methods on Matchers. */
Matcher.prototype = {
constructor: Matcher,
// These are expected to be overridden in every instance.
match: function() { throw new Error("unimplemented"); },
toString: function() { throw new Error("unimplemented"); },
// This returns a standalone function to do the matching.
func: function() { return this.match.bind(this); },
// Basic combinators
then: function(m) { return Matcher.seq(this, m); },
or: function(m) { return Matcher.alt(this, m); },
andand: function(m) { return Matcher.many(true, this, m); },
oror: function(m) { return Matcher.many(false, this, m); },
// Component value multipliers
star: function() { return this.braces(0, Infinity, "*"); },
plus: function() { return this.braces(1, Infinity, "+"); },
question: function() { return this.braces(0, 1, "?"); },
hash: function() {
return this.braces(1, Infinity, "#", Matcher.cast(","));
},
braces: function(min, max, marker, optSep) {
var m1 = this, m2 = optSep ? optSep.then(this) : this;
if (!marker) {
marker = "{" + min + "," + max + "}";
}
return new Matcher(function(expression) {
var result = true, i;
for (i = 0; i < max; i++) {
if (i > 0 && optSep) {
result = m2.match(expression);
} else {
result = m1.match(expression);
}
if (!result) {
break;
}
}
return i >= min;
}, function() {
return m1.toString(Matcher.prec.MOD) + marker;
});
}
};
},{"../util/StringReader":24,"../util/SyntaxError":25,"./ValidationTypes":21}],4:[function(require,module,exports){
"use strict";
module.exports = MediaFeature;
var SyntaxUnit = require("../util/SyntaxUnit");
var Parser = require("./Parser");
/**
* Represents a media feature, such as max-width:500.
* @namespace parserlib.css
* @class MediaFeature
* @extends parserlib.util.SyntaxUnit
* @constructor
* @param {SyntaxUnit} name The name of the feature.
* @param {SyntaxUnit} value The value of the feature or null if none.
*/
function MediaFeature(name, value) {
SyntaxUnit.call(this, "(" + name + (value !== null ? ":" + value : "") + ")", name.startLine, name.startCol, Parser.MEDIA_FEATURE_TYPE);
/**
* The name of the media feature
* @type String
* @property name
*/
this.name = name;
/**
* The value for the feature or null if there is none.
* @type SyntaxUnit
* @property value
*/
this.value = value;
}
MediaFeature.prototype = new SyntaxUnit();
MediaFeature.prototype.constructor = MediaFeature;
},{"../util/SyntaxUnit":26,"./Parser":6}],5:[function(require,module,exports){
"use strict";
module.exports = MediaQuery;
var SyntaxUnit = require("../util/SyntaxUnit");
var Parser = require("./Parser");
/**
* Represents an individual media query.
* @namespace parserlib.css
* @class MediaQuery
* @extends parserlib.util.SyntaxUnit
* @constructor
* @param {String} modifier The modifier "not" or "only" (or null).
* @param {String} mediaType The type of media (i.e., "print").
* @param {Array} parts Array of selectors parts making up this selector.
* @param {int} line The line of text on which the unit resides.
* @param {int} col The column of text on which the unit resides.
*/
function MediaQuery(modifier, mediaType, features, line, col) {
SyntaxUnit.call(this, (modifier ? modifier + " ": "") + (mediaType ? mediaType : "") + (mediaType && features.length > 0 ? " and " : "") + features.join(" and "), line, col, Parser.MEDIA_QUERY_TYPE);
/**
* The media modifier ("not" or "only")
* @type String
* @property modifier
*/
this.modifier = modifier;
/**
* The mediaType (i.e., "print")
* @type String
* @property mediaType
*/
this.mediaType = mediaType;
/**
* The parts that make up the selector.
* @type Array
* @property features
*/
this.features = features;
}
MediaQuery.prototype = new SyntaxUnit();
MediaQuery.prototype.constructor = MediaQuery;
},{"../util/SyntaxUnit":26,"./Parser":6}],6:[function(require,module,exports){
"use strict";
module.exports = Parser;
var EventTarget = require("../util/EventTarget");
var SyntaxError = require("../util/SyntaxError");
var SyntaxUnit = require("../util/SyntaxUnit");
var Combinator = require("./Combinator");
var MediaFeature = require("./MediaFeature");
var MediaQuery = require("./MediaQuery");
var PropertyName = require("./PropertyName");
var PropertyValue = require("./PropertyValue");
var PropertyValuePart = require("./PropertyValuePart");
var Selector = require("./Selector");
var SelectorPart = require("./SelectorPart");
var SelectorSubPart = require("./SelectorSubPart");
var TokenStream = require("./TokenStream");
var Tokens = require("./Tokens");
var Validation = require("./Validation");
/**
* A CSS3 parser.
* @namespace parserlib.css
* @class Parser
* @constructor
* @param {Object} options (Optional) Various options for the parser:
* starHack (true|false) to allow IE6 star hack as valid,
* underscoreHack (true|false) to interpret leading underscores
* as IE6-7 targeting for known properties, ieFilters (true|false)
* to indicate that IE < 8 filters should be accepted and not throw
* syntax errors.
*/
function Parser(options) {
//inherit event functionality
EventTarget.call(this);
this.options = options || {};
this._tokenStream = null;
}
//Static constants
Parser.DEFAULT_TYPE = 0;
Parser.COMBINATOR_TYPE = 1;
Parser.MEDIA_FEATURE_TYPE = 2;
Parser.MEDIA_QUERY_TYPE = 3;
Parser.PROPERTY_NAME_TYPE = 4;
Parser.PROPERTY_VALUE_TYPE = 5;
Parser.PROPERTY_VALUE_PART_TYPE = 6;
Parser.SELECTOR_TYPE = 7;
Parser.SELECTOR_PART_TYPE = 8;
Parser.SELECTOR_SUB_PART_TYPE = 9;
Parser.prototype = function() {
var proto = new EventTarget(), //new prototype
prop,
additions = {
__proto__: null,
//restore constructor
constructor: Parser,
//instance constants - yuck
DEFAULT_TYPE : 0,
COMBINATOR_TYPE : 1,
MEDIA_FEATURE_TYPE : 2,
MEDIA_QUERY_TYPE : 3,
PROPERTY_NAME_TYPE : 4,
PROPERTY_VALUE_TYPE : 5,
PROPERTY_VALUE_PART_TYPE : 6,
SELECTOR_TYPE : 7,
SELECTOR_PART_TYPE : 8,
SELECTOR_SUB_PART_TYPE : 9,
//-----------------------------------------------------------------
// Grammar
//-----------------------------------------------------------------
_stylesheet: function() {
/*
* stylesheet
* : [ CHARSET_SYM S* STRING S* ';' ]?
* [S|CDO|CDC]* [ import [S|CDO|CDC]* ]*
* [ namespace [S|CDO|CDC]* ]*
* [ [ ruleset | media | page | font_face | keyframes_rule | supports_rule ] [S|CDO|CDC]* ]*
* ;
*/
var tokenStream = this._tokenStream,
count,
token,
tt;
this.fire("startstylesheet");
//try to read character set
this._charset();
this._skipCruft();
//try to read imports - may be more than one
while (tokenStream.peek() === Tokens.IMPORT_SYM) {
this._import();
this._skipCruft();
}
//try to read namespaces - may be more than one
while (tokenStream.peek() === Tokens.NAMESPACE_SYM) {
this._namespace();
this._skipCruft();
}
//get the next token
tt = tokenStream.peek();
//try to read the rest
while (tt > Tokens.EOF) {
try {
switch (tt) {
case Tokens.MEDIA_SYM:
this._media();
this._skipCruft();
break;
case Tokens.PAGE_SYM:
this._page();
this._skipCruft();
break;
case Tokens.FONT_FACE_SYM:
this._font_face();
this._skipCruft();
break;
case Tokens.KEYFRAMES_SYM:
this._keyframes();
this._skipCruft();
break;
case Tokens.VIEWPORT_SYM:
this._viewport();
this._skipCruft();
break;
case Tokens.DOCUMENT_SYM:
this._document();
this._skipCruft();
break;
case Tokens.SUPPORTS_SYM:
this._supports();
this._skipCruft();
break;
case Tokens.UNKNOWN_SYM: //unknown @ rule
tokenStream.get();
if (!this.options.strict) {
//fire error event
this.fire({
type: "error",
error: null,
message: "Unknown @ rule: " + tokenStream.LT(0).value + ".",
line: tokenStream.LT(0).startLine,
col: tokenStream.LT(0).startCol
});
//skip braces
count=0;
while (tokenStream.advance([Tokens.LBRACE, Tokens.RBRACE]) === Tokens.LBRACE) {
count++; //keep track of nesting depth
}
while (count) {
tokenStream.advance([Tokens.RBRACE]);
count--;
}
} else {
//not a syntax error, rethrow it
throw new SyntaxError("Unknown @ rule.", tokenStream.LT(0).startLine, tokenStream.LT(0).startCol);
}
break;
case Tokens.S:
this._readWhitespace();
break;
default:
if (!this._ruleset()) {
//error handling for known issues
switch (tt) {
case Tokens.CHARSET_SYM:
token = tokenStream.LT(1);
this._charset(false);
throw new SyntaxError("@charset not allowed here.", token.startLine, token.startCol);
case Tokens.IMPORT_SYM:
token = tokenStream.LT(1);
this._import(false);
throw new SyntaxError("@import not allowed here.", token.startLine, token.startCol);
case Tokens.NAMESPACE_SYM:
token = tokenStream.LT(1);
this._namespace(false);
throw new SyntaxError("@namespace not allowed here.", token.startLine, token.startCol);
default:
tokenStream.get(); //get the last token
this._unexpectedToken(tokenStream.token());
}
}
}
} catch (ex) {
if (ex instanceof SyntaxError && !this.options.strict) {
this.fire({
type: "error",
error: ex,
message: ex.message,
line: ex.line,
col: ex.col
});
} else {
throw ex;
}
}
tt = tokenStream.peek();
}
if (tt !== Tokens.EOF) {
this._unexpectedToken(tokenStream.token());
}
this.fire("endstylesheet");
},
_charset: function(emit) {
var tokenStream = this._tokenStream,
charset,
token,
line,
col;
if (tokenStream.match(Tokens.CHARSET_SYM)) {
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
this._readWhitespace();
tokenStream.mustMatch(Tokens.STRING);
token = tokenStream.token();
charset = token.value;
this._readWhitespace();
tokenStream.mustMatch(Tokens.SEMICOLON);
if (emit !== false) {
this.fire({
type: "charset",
charset:charset,
line: line,
col: col
});
}
}
},
_import: function(emit) {
/*
* import
* : IMPORT_SYM S*
* [STRING|URI] S* media_query_list? ';' S*
*/
var tokenStream = this._tokenStream,
uri,
importToken,
mediaList = [];
//read import symbol
tokenStream.mustMatch(Tokens.IMPORT_SYM);
importToken = tokenStream.token();
this._readWhitespace();
tokenStream.mustMatch([Tokens.STRING, Tokens.URI]);
//grab the URI value
uri = tokenStream.token().value.replace(/^(?:url\()?["']?([^"']+?)["']?\)?$/, "$1");
this._readWhitespace();
mediaList = this._media_query_list();
//must end with a semicolon
tokenStream.mustMatch(Tokens.SEMICOLON);
this._readWhitespace();
if (emit !== false) {
this.fire({
type: "import",
uri: uri,
media: mediaList,
line: importToken.startLine,
col: importToken.startCol
});
}
},
_namespace: function(emit) {
/*
* namespace
* : NAMESPACE_SYM S* [namespace_prefix S*]? [STRING|URI] S* ';' S*
*/
var tokenStream = this._tokenStream,
line,
col,
prefix,
uri;
//read import symbol
tokenStream.mustMatch(Tokens.NAMESPACE_SYM);
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
this._readWhitespace();
//it's a namespace prefix - no _namespace_prefix() method because it's just an IDENT
if (tokenStream.match(Tokens.IDENT)) {
prefix = tokenStream.token().value;
this._readWhitespace();
}
tokenStream.mustMatch([Tokens.STRING, Tokens.URI]);
/*if (!tokenStream.match(Tokens.STRING)){
tokenStream.mustMatch(Tokens.URI);
}*/
//grab the URI value
uri = tokenStream.token().value.replace(/(?:url\()?["']([^"']+)["']\)?/, "$1");
this._readWhitespace();
//must end with a semicolon
tokenStream.mustMatch(Tokens.SEMICOLON);
this._readWhitespace();
if (emit !== false) {
this.fire({
type: "namespace",
prefix: prefix,
uri: uri,
line: line,
col: col
});
}
},
_supports: function(emit) {
/*
* supports_rule
* : SUPPORTS_SYM S* supports_condition S* group_rule_body
* ;
*/
var tokenStream = this._tokenStream,
line,
col;
if (tokenStream.match(Tokens.SUPPORTS_SYM)) {
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
this._readWhitespace();
this._supports_condition();
this._readWhitespace();
tokenStream.mustMatch(Tokens.LBRACE);
this._readWhitespace();
if (emit !== false) {
this.fire({
type: "startsupports",
line: line,
col: col
});
}
while (true) {
if (!this._ruleset()) {
break;
}
}
tokenStream.mustMatch(Tokens.RBRACE);
this._readWhitespace();
this.fire({
type: "endsupports",
line: line,
col: col
});
}
},
_supports_condition: function() {
/*
* supports_condition
* : supports_negation | supports_conjunction | supports_disjunction |
* supports_condition_in_parens
* ;
*/
var tokenStream = this._tokenStream,
ident;
if (tokenStream.match(Tokens.IDENT)) {
ident = tokenStream.token().value.toLowerCase();
if (ident === "not") {
tokenStream.mustMatch(Tokens.S);
this._supports_condition_in_parens();
} else {
tokenStream.unget();
}
} else {
this._supports_condition_in_parens();
this._readWhitespace();
while (tokenStream.peek() === Tokens.IDENT) {
ident = tokenStream.LT(1).value.toLowerCase();
if (ident === "and" || ident === "or") {
tokenStream.mustMatch(Tokens.IDENT);
this._readWhitespace();
this._supports_condition_in_parens();
this._readWhitespace();
}
}
}
},
_supports_condition_in_parens: function() {
/*
* supports_condition_in_parens
* : ( '(' S* supports_condition S* ')' ) | supports_declaration_condition |
* general_enclosed
* ;
*/
var tokenStream = this._tokenStream,
ident;
if (tokenStream.match(Tokens.LPAREN)) {
this._readWhitespace();
if (tokenStream.match(Tokens.IDENT)) {
// look ahead for not keyword, if not given, continue with declaration condition.
ident = tokenStream.token().value.toLowerCase();
if (ident === "not") {
this._readWhitespace();
this._supports_condition();
this._readWhitespace();
tokenStream.mustMatch(Tokens.RPAREN);
} else {
tokenStream.unget();
this._supports_declaration_condition(false);
}
} else {
this._supports_condition();
this._readWhitespace();
tokenStream.mustMatch(Tokens.RPAREN);
}
} else {
this._supports_declaration_condition();
}
},
_supports_declaration_condition: function(requireStartParen) {
/*
* supports_declaration_condition
* : '(' S* declaration ')'
* ;
*/
var tokenStream = this._tokenStream;
if (requireStartParen !== false) {
tokenStream.mustMatch(Tokens.LPAREN);
}
this._readWhitespace();
this._declaration();
tokenStream.mustMatch(Tokens.RPAREN);
},
_media: function() {
/*
* media
* : MEDIA_SYM S* media_query_list S* '{' S* ruleset* '}' S*
* ;
*/
var tokenStream = this._tokenStream,
line,
col,
mediaList;// = [];
//look for @media
tokenStream.mustMatch(Tokens.MEDIA_SYM);
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
this._readWhitespace();
mediaList = this._media_query_list();
tokenStream.mustMatch(Tokens.LBRACE);
this._readWhitespace();
this.fire({
type: "startmedia",
media: mediaList,
line: line,
col: col
});
while (true) {
if (tokenStream.peek() === Tokens.PAGE_SYM) {
this._page();
} else if (tokenStream.peek() === Tokens.FONT_FACE_SYM) {
this._font_face();
} else if (tokenStream.peek() === Tokens.VIEWPORT_SYM) {
this._viewport();
} else if (tokenStream.peek() === Tokens.DOCUMENT_SYM) {
this._document();
} else if (tokenStream.peek() === Tokens.SUPPORTS_SYM) {
this._supports();
} else if (tokenStream.peek() === Tokens.MEDIA_SYM) {
this._media();
} else if (!this._ruleset()) {
break;
}
}
tokenStream.mustMatch(Tokens.RBRACE);
this._readWhitespace();
this.fire({
type: "endmedia",
media: mediaList,
line: line,
col: col
});
},
//CSS3 Media Queries
_media_query_list: function() {
/*
* media_query_list
* : S* [media_query [ ',' S* media_query ]* ]?
* ;
*/
var tokenStream = this._tokenStream,
mediaList = [];
this._readWhitespace();
if (tokenStream.peek() === Tokens.IDENT || tokenStream.peek() === Tokens.LPAREN) {
mediaList.push(this._media_query());
}
while (tokenStream.match(Tokens.COMMA)) {
this._readWhitespace();
mediaList.push(this._media_query());
}
return mediaList;
},
/*
* Note: "expression" in the grammar maps to the _media_expression
* method.
*/
_media_query: function() {
/*
* media_query
* : [ONLY | NOT]? S* media_type S* [ AND S* expression ]*
* | expression [ AND S* expression ]*
* ;
*/
var tokenStream = this._tokenStream,
type = null,
ident = null,
token = null,
expressions = [];
if (tokenStream.match(Tokens.IDENT)) {
ident = tokenStream.token().value.toLowerCase();
//since there's no custom tokens for these, need to manually check
if (ident !== "only" && ident !== "not") {
tokenStream.unget();
ident = null;
} else {
token = tokenStream.token();
}
}
this._readWhitespace();
if (tokenStream.peek() === Tokens.IDENT) {
type = this._media_type();
if (token === null) {
token = tokenStream.token();
}
} else if (tokenStream.peek() === Tokens.LPAREN) {
if (token === null) {
token = tokenStream.LT(1);
}
expressions.push(this._media_expression());
}
if (type === null && expressions.length === 0) {
return null;
} else {
this._readWhitespace();
while (tokenStream.match(Tokens.IDENT)) {
if (tokenStream.token().value.toLowerCase() !== "and") {
this._unexpectedToken(tokenStream.token());
}
this._readWhitespace();
expressions.push(this._media_expression());
}
}
return new MediaQuery(ident, type, expressions, token.startLine, token.startCol);
},
//CSS3 Media Queries
_media_type: function() {
/*
* media_type
* : IDENT
* ;
*/
return this._media_feature();
},
/**
* Note: in CSS3 Media Queries, this is called "expression".
* Renamed here to avoid conflict with CSS3 Selectors
* definition of "expression". Also note that "expr" in the
* grammar now maps to "expression" from CSS3 selectors.
* @method _media_expression
* @private
*/
_media_expression: function() {
/*
* expression
* : '(' S* media_feature S* [ ':' S* expr ]? ')' S*
* ;
*/
var tokenStream = this._tokenStream,
feature = null,
token,
expression = null;
tokenStream.mustMatch(Tokens.LPAREN);
feature = this._media_feature();
this._readWhitespace();
if (tokenStream.match(Tokens.COLON)) {
this._readWhitespace();
token = tokenStream.LT(1);
expression = this._expression();
}
tokenStream.mustMatch(Tokens.RPAREN);
this._readWhitespace();
return new MediaFeature(feature, expression ? new SyntaxUnit(expression, token.startLine, token.startCol) : null);
},
//CSS3 Media Queries
_media_feature: function() {
/*
* media_feature
* : IDENT
* ;
*/
var tokenStream = this._tokenStream;
this._readWhitespace();
tokenStream.mustMatch(Tokens.IDENT);
return SyntaxUnit.fromToken(tokenStream.token());
},
//CSS3 Paged Media
_page: function() {
/*
* page:
* PAGE_SYM S* IDENT? pseudo_page? S*
* '{' S* [ declaration | margin ]? [ ';' S* [ declaration | margin ]? ]* '}' S*
* ;
*/
var tokenStream = this._tokenStream,
line,
col,
identifier = null,
pseudoPage = null;
//look for @page
tokenStream.mustMatch(Tokens.PAGE_SYM);
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
this._readWhitespace();
if (tokenStream.match(Tokens.IDENT)) {
identifier = tokenStream.token().value;
//The value 'auto' may not be used as a page name and MUST be treated as a syntax error.
if (identifier.toLowerCase() === "auto") {
this._unexpectedToken(tokenStream.token());
}
}
//see if there's a colon upcoming
if (tokenStream.peek() === Tokens.COLON) {
pseudoPage = this._pseudo_page();
}
this._readWhitespace();
this.fire({
type: "startpage",
id: identifier,
pseudo: pseudoPage,
line: line,
col: col
});
this._readDeclarations(true, true);
this.fire({
type: "endpage",
id: identifier,
pseudo: pseudoPage,
line: line,
col: col
});
},
//CSS3 Paged Media
_margin: function() {
/*
* margin :
* margin_sym S* '{' declaration [ ';' S* declaration? ]* '}' S*
* ;
*/
var tokenStream = this._tokenStream,
line,
col,
marginSym = this._margin_sym();
if (marginSym) {
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
this.fire({
type: "startpagemargin",
margin: marginSym,
line: line,
col: col
});
this._readDeclarations(true);
this.fire({
type: "endpagemargin",
margin: marginSym,
line: line,
col: col
});
return true;
} else {
return false;
}
},
//CSS3 Paged Media
_margin_sym: function() {
/*
* margin_sym :
* TOPLEFTCORNER_SYM |
* TOPLEFT_SYM |
* TOPCENTER_SYM |
* TOPRIGHT_SYM |
* TOPRIGHTCORNER_SYM |
* BOTTOMLEFTCORNER_SYM |
* BOTTOMLEFT_SYM |
* BOTTOMCENTER_SYM |
* BOTTOMRIGHT_SYM |
* BOTTOMRIGHTCORNER_SYM |
* LEFTTOP_SYM |
* LEFTMIDDLE_SYM |
* LEFTBOTTOM_SYM |
* RIGHTTOP_SYM |
* RIGHTMIDDLE_SYM |
* RIGHTBOTTOM_SYM
* ;
*/
var tokenStream = this._tokenStream;
if (tokenStream.match([Tokens.TOPLEFTCORNER_SYM, Tokens.TOPLEFT_SYM,
Tokens.TOPCENTER_SYM, Tokens.TOPRIGHT_SYM, Tokens.TOPRIGHTCORNER_SYM,
Tokens.BOTTOMLEFTCORNER_SYM, Tokens.BOTTOMLEFT_SYM,
Tokens.BOTTOMCENTER_SYM, Tokens.BOTTOMRIGHT_SYM,
Tokens.BOTTOMRIGHTCORNER_SYM, Tokens.LEFTTOP_SYM,
Tokens.LEFTMIDDLE_SYM, Tokens.LEFTBOTTOM_SYM, Tokens.RIGHTTOP_SYM,
Tokens.RIGHTMIDDLE_SYM, Tokens.RIGHTBOTTOM_SYM])) {
return SyntaxUnit.fromToken(tokenStream.token());
} else {
return null;
}
},
_pseudo_page: function() {
/*
* pseudo_page
* : ':' IDENT
* ;
*/
var tokenStream = this._tokenStream;
tokenStream.mustMatch(Tokens.COLON);
tokenStream.mustMatch(Tokens.IDENT);
//TODO: CSS3 Paged Media says only "left", "center", and "right" are allowed
return tokenStream.token().value;
},
_font_face: function() {
/*
* font_face
* : FONT_FACE_SYM S*
* '{' S* declaration [ ';' S* declaration ]* '}' S*
* ;
*/
var tokenStream = this._tokenStream,
line,
col;
//look for @page
tokenStream.mustMatch(Tokens.FONT_FACE_SYM);
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
this._readWhitespace();
this.fire({
type: "startfontface",
line: line,
col: col
});
this._readDeclarations(true);
this.fire({
type: "endfontface",
line: line,
col: col
});
},
_viewport: function() {
/*
* viewport
* : VIEWPORT_SYM S*
* '{' S* declaration? [ ';' S* declaration? ]* '}' S*
* ;
*/
var tokenStream = this._tokenStream,
line,
col;
tokenStream.mustMatch(Tokens.VIEWPORT_SYM);
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
this._readWhitespace();
this.fire({
type: "startviewport",
line: line,
col: col
});
this._readDeclarations(true);
this.fire({
type: "endviewport",
line: line,
col: col
});
},
_document: function() {
/*
* document
* : DOCUMENT_SYM S*
* _document_function [ ',' S* _document_function ]* S*
* '{' S* ruleset* '}'
* ;
*/
var tokenStream = this._tokenStream,
token,
functions = [],
prefix = "";
tokenStream.mustMatch(Tokens.DOCUMENT_SYM);
token = tokenStream.token();
if (/^@\-([^\-]+)\-/.test(token.value)) {
prefix = RegExp.$1;
}
this._readWhitespace();
functions.push(this._document_function());
while (tokenStream.match(Tokens.COMMA)) {
this._readWhitespace();
functions.push(this._document_function());
}
tokenStream.mustMatch(Tokens.LBRACE);
this._readWhitespace();
this.fire({
type: "startdocument",
functions: functions,
prefix: prefix,
line: token.startLine,
col: token.startCol
});
var ok = true;
while (ok) {
switch (tokenStream.peek()) {
case Tokens.PAGE_SYM:
this._page();
break;
case Tokens.FONT_FACE_SYM:
this._font_face();
break;
case Tokens.VIEWPORT_SYM:
this._viewport();
break;
case Tokens.MEDIA_SYM:
this._media();
break;
case Tokens.KEYFRAMES_SYM:
this._keyframes();
break;
case Tokens.DOCUMENT_SYM:
this._document();
break;
default:
ok = Boolean(this._ruleset());
}
}
tokenStream.mustMatch(Tokens.RBRACE);
token = tokenStream.token();
this._readWhitespace();
this.fire({
type: "enddocument",
functions: functions,
prefix: prefix,
line: token.startLine,
col: token.startCol
});
},
_document_function: function() {
/*
* document_function
* : function | URI S*
* ;
*/
var tokenStream = this._tokenStream,
value;
if (tokenStream.match(Tokens.URI)) {
value = tokenStream.token().value;
this._readWhitespace();
} else {
value = this._function();
}
return value;
},
_operator: function(inFunction) {
/*
* operator (outside function)
* : '/' S* | ',' S* | /( empty )/
* operator (inside function)
* : '/' S* | '+' S* | '*' S* | '-' S* /( empty )/
* ;
*/
var tokenStream = this._tokenStream,
token = null;
if (tokenStream.match([Tokens.SLASH, Tokens.COMMA]) ||
(inFunction && tokenStream.match([Tokens.PLUS, Tokens.STAR, Tokens.MINUS]))) {
token = tokenStream.token();
this._readWhitespace();
}
return token ? PropertyValuePart.fromToken(token) : null;
},
_combinator: function() {
/*
* combinator
* : PLUS S* | GREATER S* | TILDE S* | S+
* ;
*/
var tokenStream = this._tokenStream,
value = null,
token;
if (tokenStream.match([Tokens.PLUS, Tokens.GREATER, Tokens.TILDE])) {
token = tokenStream.token();
value = new Combinator(token.value, token.startLine, token.startCol);
this._readWhitespace();
}
return value;
},
_unary_operator: function() {
/*
* unary_operator
* : '-' | '+'
* ;
*/
var tokenStream = this._tokenStream;
if (tokenStream.match([Tokens.MINUS, Tokens.PLUS])) {
return tokenStream.token().value;
} else {
return null;
}
},
_property: function() {
/*
* property
* : IDENT S*
* ;
*/
var tokenStream = this._tokenStream,
value = null,
hack = null,
tokenValue,
token,
line,
col;
//check for star hack - throws error if not allowed
if (tokenStream.peek() === Tokens.STAR && this.options.starHack) {
tokenStream.get();
token = tokenStream.token();
hack = token.value;
line = token.startLine;
col = token.startCol;
}
if (tokenStream.match(Tokens.IDENT)) {
token = tokenStream.token();
tokenValue = token.value;
//check for underscore hack - no error if not allowed because it's valid CSS syntax
if (tokenValue.charAt(0) === "_" && this.options.underscoreHack) {
hack = "_";
tokenValue = tokenValue.substring(1);
}
value = new PropertyName(tokenValue, hack, (line||token.startLine), (col||token.startCol));
this._readWhitespace();
}
return value;
},
//Augmented with CSS3 Selectors
_ruleset: function() {
/*
* ruleset
* : selectors_group
* '{' S* declaration? [ ';' S* declaration? ]* '}' S*
* ;
*/
var tokenStream = this._tokenStream,
tt,
selectors;
/*
* Error Recovery: If even a single selector fails to parse,
* then the entire ruleset should be thrown away.
*/
try {
selectors = this._selectors_group();
} catch (ex) {
if (ex instanceof SyntaxError && !this.options.strict) {
//fire error event
this.fire({
type: "error",
error: ex,
message: ex.message,
line: ex.line,
col: ex.col
});
//skip over everything until closing brace
tt = tokenStream.advance([Tokens.RBRACE]);
if (tt === Tokens.RBRACE) {
//if there's a right brace, the rule is finished so don't do anything
} else {
//otherwise, rethrow the error because it wasn't handled properly
throw ex;
}
} else {
//not a syntax error, rethrow it
throw ex;
}
//trigger parser to continue
return true;
}
//if it got here, all selectors parsed
if (selectors) {
this.fire({
type: "startrule",
selectors: selectors,
line: selectors[0].line,
col: selectors[0].col
});
this._readDeclarations(true);
this.fire({
type: "endrule",
selectors: selectors,
line: selectors[0].line,
col: selectors[0].col
});
}
return selectors;
},
//CSS3 Selectors
_selectors_group: function() {
/*
* selectors_group
* : selector [ COMMA S* selector ]*
* ;
*/
var tokenStream = this._tokenStream,
selectors = [],
selector;
selector = this._selector();
if (selector !== null) {
selectors.push(selector);
while (tokenStream.match(Tokens.COMMA)) {
this._readWhitespace();
selector = this._selector();
if (selector !== null) {
selectors.push(selector);
} else {
this._unexpectedToken(tokenStream.LT(1));
}
}
}
return selectors.length ? selectors : null;
},
//CSS3 Selectors
_selector: function() {
/*
* selector
* : simple_selector_sequence [ combinator simple_selector_sequence ]*
* ;
*/
var tokenStream = this._tokenStream,
selector = [],
nextSelector = null,
combinator = null,
ws = null;
//if there's no simple selector, then there's no selector
nextSelector = this._simple_selector_sequence();
if (nextSelector === null) {
return null;
}
selector.push(nextSelector);
do {
//look for a combinator
combinator = this._combinator();
if (combinator !== null) {
selector.push(combinator);
nextSelector = this._simple_selector_sequence();
//there must be a next selector
if (nextSelector === null) {
this._unexpectedToken(tokenStream.LT(1));
} else {
//nextSelector is an instance of SelectorPart
selector.push(nextSelector);
}
} else {
//if there's not whitespace, we're done
if (this._readWhitespace()) {
//add whitespace separator
ws = new Combinator(tokenStream.token().value, tokenStream.token().startLine, tokenStream.token().startCol);
//combinator is not required
combinator = this._combinator();
//selector is required if there's a combinator
nextSelector = this._simple_selector_sequence();
if (nextSelector === null) {
if (combinator !== null) {
this._unexpectedToken(tokenStream.LT(1));
}
} else {
if (combinator !== null) {
selector.push(combinator);
} else {
selector.push(ws);
}
selector.push(nextSelector);
}
} else {
break;
}
}
} while (true);
return new Selector(selector, selector[0].line, selector[0].col);
},
//CSS3 Selectors
_simple_selector_sequence: function() {
/*
* simple_selector_sequence
* : [ type_selector | universal ]
* [ HASH | class | attrib | pseudo | negation ]*
* | [ HASH | class | attrib | pseudo | negation ]+
* ;
*/
var tokenStream = this._tokenStream,
//parts of a simple selector
elementName = null,
modifiers = [],
//complete selector text
selectorText= "",
//the different parts after the element name to search for
components = [
//HASH
function() {
return tokenStream.match(Tokens.HASH) ?
new SelectorSubPart(tokenStream.token().value, "id", tokenStream.token().startLine, tokenStream.token().startCol) :
null;
},
this._class,
this._attrib,
this._pseudo,
this._negation
],
i = 0,
len = components.length,
component = null,
line,
col;
//get starting line and column for the selector
line = tokenStream.LT(1).startLine;
col = tokenStream.LT(1).startCol;
elementName = this._type_selector();
if (!elementName) {
elementName = this._universal();
}
if (elementName !== null) {
selectorText += elementName;
}
while (true) {
//whitespace means we're done
if (tokenStream.peek() === Tokens.S) {
break;
}
//check for each component
while (i < len && component === null) {
component = components[i++].call(this);
}
if (component === null) {
//we don't have a selector
if (selectorText === "") {
return null;
} else {
break;
}
} else {
i = 0;
modifiers.push(component);
selectorText += component.toString();
component = null;
}
}
return selectorText !== "" ?
new SelectorPart(elementName, modifiers, selectorText, line, col) :
null;
},
//CSS3 Selectors
_type_selector: function() {
/*
* type_selector
* : [ namespace_prefix ]? element_name
* ;
*/
var tokenStream = this._tokenStream,
ns = this._namespace_prefix(),
elementName = this._element_name();
if (!elementName) {
/*
* Need to back out the namespace that was read due to both
* type_selector and universal reading namespace_prefix
* first. Kind of hacky, but only way I can figure out
* right now how to not change the grammar.
*/
if (ns) {
tokenStream.unget();
if (ns.length > 1) {
tokenStream.unget();
}
}
return null;
} else {
if (ns) {
elementName.text = ns + elementName.text;
elementName.col -= ns.length;
}
return elementName;
}
},
//CSS3 Selectors
_class: function() {
/*
* class
* : '.' IDENT
* ;
*/
var tokenStream = this._tokenStream,
token;
if (tokenStream.match(Tokens.DOT)) {
tokenStream.mustMatch(Tokens.IDENT);
token = tokenStream.token();
return new SelectorSubPart("." + token.value, "class", token.startLine, token.startCol - 1);
} else {
return null;
}
},
//CSS3 Selectors
_element_name: function() {
/*
* element_name
* : IDENT
* ;
*/
var tokenStream = this._tokenStream,
token;
if (tokenStream.match(Tokens.IDENT)) {
token = tokenStream.token();
return new SelectorSubPart(token.value, "elementName", token.startLine, token.startCol);
} else {
return null;
}
},
//CSS3 Selectors
_namespace_prefix: function() {
/*
* namespace_prefix
* : [ IDENT | '*' ]? '|'
* ;
*/
var tokenStream = this._tokenStream,
value = "";
//verify that this is a namespace prefix
if (tokenStream.LA(1) === Tokens.PIPE || tokenStream.LA(2) === Tokens.PIPE) {
if (tokenStream.match([Tokens.IDENT, Tokens.STAR])) {
value += tokenStream.token().value;
}
tokenStream.mustMatch(Tokens.PIPE);
value += "|";
}
return value.length ? value : null;
},
//CSS3 Selectors
_universal: function() {
/*
* universal
* : [ namespace_prefix ]? '*'
* ;
*/
var tokenStream = this._tokenStream,
value = "",
ns;
ns = this._namespace_prefix();
if (ns) {
value += ns;
}
if (tokenStream.match(Tokens.STAR)) {
value += "*";
}
return value.length ? value : null;
},
//CSS3 Selectors
_attrib: function() {
/*
* attrib
* : '[' S* [ namespace_prefix ]? IDENT S*
* [ [ PREFIXMATCH |
* SUFFIXMATCH |
* SUBSTRINGMATCH |
* '=' |
* INCLUDES |
* DASHMATCH ] S* [ IDENT | STRING ] S*
* ]? ']'
* ;
*/
var tokenStream = this._tokenStream,
value = null,
ns,
token;
if (tokenStream.match(Tokens.LBRACKET)) {
token = tokenStream.token();
value = token.value;
value += this._readWhitespace();
ns = this._namespace_prefix();
if (ns) {
value += ns;
}
tokenStream.mustMatch(Tokens.IDENT);
value += tokenStream.token().value;
value += this._readWhitespace();
if (tokenStream.match([Tokens.PREFIXMATCH, Tokens.SUFFIXMATCH, Tokens.SUBSTRINGMATCH,
Tokens.EQUALS, Tokens.INCLUDES, Tokens.DASHMATCH])) {
value += tokenStream.token().value;
value += this._readWhitespace();
tokenStream.mustMatch([Tokens.IDENT, Tokens.STRING]);
value += tokenStream.token().value;
value += this._readWhitespace();
}
tokenStream.mustMatch(Tokens.RBRACKET);
return new SelectorSubPart(value + "]", "attribute", token.startLine, token.startCol);
} else {
return null;
}
},
//CSS3 Selectors
_pseudo: function() {
/*
* pseudo
* : ':' ':'? [ IDENT | functional_pseudo ]
* ;
*/
var tokenStream = this._tokenStream,
pseudo = null,
colons = ":",
line,
col;
if (tokenStream.match(Tokens.COLON)) {
if (tokenStream.match(Tokens.COLON)) {
colons += ":";
}
if (tokenStream.match(Tokens.IDENT)) {
pseudo = tokenStream.token().value;
line = tokenStream.token().startLine;
col = tokenStream.token().startCol - colons.length;
} else if (tokenStream.peek() === Tokens.FUNCTION) {
line = tokenStream.LT(1).startLine;
col = tokenStream.LT(1).startCol - colons.length;
pseudo = this._functional_pseudo();
}
if (pseudo) {
pseudo = new SelectorSubPart(colons + pseudo, "pseudo", line, col);
} else {
var startLine = tokenStream.LT(1).startLine,
startCol = tokenStream.LT(0).startCol;
throw new SyntaxError("Expected a `FUNCTION` or `IDENT` after colon at line " + startLine + ", col " + startCol + ".", startLine, startCol);
}
}
return pseudo;
},
//CSS3 Selectors
_functional_pseudo: function() {
/*
* functional_pseudo
* : FUNCTION S* expression ')'
* ;
*/
var tokenStream = this._tokenStream,
value = null;
if (tokenStream.match(Tokens.FUNCTION)) {
value = tokenStream.token().value;
value += this._readWhitespace();
value += this._expression();
tokenStream.mustMatch(Tokens.RPAREN);
value += ")";
}
return value;
},
//CSS3 Selectors
_expression: function() {
/*
* expression
* : [ [ PLUS | '-' | DIMENSION | NUMBER | STRING | IDENT ] S* ]+
* ;
*/
var tokenStream = this._tokenStream,
value = "";
while (tokenStream.match([Tokens.PLUS, Tokens.MINUS, Tokens.DIMENSION,
Tokens.NUMBER, Tokens.STRING, Tokens.IDENT, Tokens.LENGTH,
Tokens.FREQ, Tokens.ANGLE, Tokens.TIME,
Tokens.RESOLUTION, Tokens.SLASH])) {
value += tokenStream.token().value;
value += this._readWhitespace();
}
return value.length ? value : null;
},
//CSS3 Selectors
_negation: function() {
/*
* negation
* : NOT S* negation_arg S* ')'
* ;
*/
var tokenStream = this._tokenStream,
line,
col,
value = "",
arg,
subpart = null;
if (tokenStream.match(Tokens.NOT)) {
value = tokenStream.token().value;
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
value += this._readWhitespace();
arg = this._negation_arg();
value += arg;
value += this._readWhitespace();
tokenStream.match(Tokens.RPAREN);
value += tokenStream.token().value;
subpart = new SelectorSubPart(value, "not", line, col);
subpart.args.push(arg);
}
return subpart;
},
//CSS3 Selectors
_negation_arg: function() {
/*
* negation_arg
* : type_selector | universal | HASH | class | attrib | pseudo
* ;
*/
var tokenStream = this._tokenStream,
args = [
this._type_selector,
this._universal,
function() {
return tokenStream.match(Tokens.HASH) ?
new SelectorSubPart(tokenStream.token().value, "id", tokenStream.token().startLine, tokenStream.token().startCol) :
null;
},
this._class,
this._attrib,
this._pseudo
],
arg = null,
i = 0,
len = args.length,
line,
col,
part;
line = tokenStream.LT(1).startLine;
col = tokenStream.LT(1).startCol;
while (i < len && arg === null) {
arg = args[i].call(this);
i++;
}
//must be a negation arg
if (arg === null) {
this._unexpectedToken(tokenStream.LT(1));
}
//it's an element name
if (arg.type === "elementName") {
part = new SelectorPart(arg, [], arg.toString(), line, col);
} else {
part = new SelectorPart(null, [arg], arg.toString(), line, col);
}
return part;
},
_declaration: function() {
/*
* declaration
* : property ':' S* expr prio?
* | /( empty )/
* ;
*/
var tokenStream = this._tokenStream,
property = null,
expr = null,
prio = null,
invalid = null,
propertyName= "";
property = this._property();
if (property !== null) {
tokenStream.mustMatch(Tokens.COLON);
this._readWhitespace();
expr = this._expr();
//if there's no parts for the value, it's an error
if (!expr || expr.length === 0) {
this._unexpectedToken(tokenStream.LT(1));
}
prio = this._prio();
/*
* If hacks should be allowed, then only check the root
* property. If hacks should not be allowed, treat
* _property or *property as invalid properties.
*/
propertyName = property.toString();
if (this.options.starHack && property.hack === "*" ||
this.options.underscoreHack && property.hack === "_") {
propertyName = property.text;
}
try {
this._validateProperty(propertyName, expr);
} catch (ex) {
invalid = ex;
}
this.fire({
type: "property",
property: property,
value: expr,
important: prio,
line: property.line,
col: property.col,
invalid: invalid
});
return true;
} else {
return false;
}
},
_prio: function() {
/*
* prio
* : IMPORTANT_SYM S*
* ;
*/
var tokenStream = this._tokenStream,
result = tokenStream.match(Tokens.IMPORTANT_SYM);
this._readWhitespace();
return result;
},
_expr: function(inFunction) {
/*
* expr
* : term [ operator term ]*
* ;
*/
var values = [],
//valueParts = [],
value = null,
operator = null;
value = this._term(inFunction);
if (value !== null) {
values.push(value);
do {
operator = this._operator(inFunction);
//if there's an operator, keep building up the value parts
if (operator) {
values.push(operator);
} /*else {
//if there's not an operator, you have a full value
values.push(new PropertyValue(valueParts, valueParts[0].line, valueParts[0].col));
valueParts = [];
}*/
value = this._term(inFunction);
if (value === null) {
break;
} else {
values.push(value);
}
} while (true);
}
//cleanup
/*if (valueParts.length) {
values.push(new PropertyValue(valueParts, valueParts[0].line, valueParts[0].col));
}*/
return values.length > 0 ? new PropertyValue(values, values[0].line, values[0].col) : null;
},
_term: function(inFunction) {
/*
* term
* : unary_operator?
* [ NUMBER S* | PERCENTAGE S* | LENGTH S* | ANGLE S* |
* TIME S* | FREQ S* | function | ie_function ]
* | STRING S* | IDENT S* | URI S* | UNICODERANGE S* | hexcolor
* ;
*/
var tokenStream = this._tokenStream,
unary = null,
value = null,
endChar = null,
part = null,
token,
line,
col;
//returns the operator or null
unary = this._unary_operator();
if (unary !== null) {
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
}
//exception for IE filters
if (tokenStream.peek() === Tokens.IE_FUNCTION && this.options.ieFilters) {
value = this._ie_function();
if (unary === null) {
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
}
//see if it's a simple block
} else if (inFunction && tokenStream.match([Tokens.LPAREN, Tokens.LBRACE, Tokens.LBRACKET])) {
token = tokenStream.token();
endChar = token.endChar;
value = token.value + this._expr(inFunction).text;
if (unary === null) {
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
}
tokenStream.mustMatch(Tokens.type(endChar));
value += endChar;
this._readWhitespace();
//see if there's a simple match
} else if (tokenStream.match([Tokens.NUMBER, Tokens.PERCENTAGE, Tokens.LENGTH,
Tokens.ANGLE, Tokens.TIME,
Tokens.FREQ, Tokens.STRING, Tokens.IDENT, Tokens.URI, Tokens.UNICODE_RANGE])) {
value = tokenStream.token().value;
if (unary === null) {
line = tokenStream.token().startLine;
col = tokenStream.token().startCol;
// Correct potentially-inaccurate IDENT parsing in
// PropertyValuePart constructor.
part = PropertyValuePart.fromToken(tokenStream.token());
}
this._readWhitespace();
} else {
//see if it's a color
token = this._hexcolor();
if (token === null) {
//if there's no unary, get the start of the next token for line/col info
if (unary === null) {
line = tokenStream.LT(1).startLine;
col = tokenStream.LT(1).startCol;
}
//has to be a function
if (value === null) {
/*
* This checks for alpha(opacity=0) style of IE
* functions. IE_FUNCTION only presents progid: style.
*/
if (tokenStream.LA(3) === Tokens.EQUALS && this.options.ieFilters) {
value = this._ie_function();
} else {
value = this._function();
}
}
/*if (value === null) {
return null;
//throw new Error("Expected identifier at line " + tokenStream.token().startLine + ", character " + tokenStream.token().startCol + ".");
}*/
} else {
value = token.value;
if (unary === null) {
line = token.startLine;
col = token.startCol;
}
}
}
return part !== null ? part : value !== null ?
new PropertyValuePart(unary !== null ? unary + value : value, line, col) :
null;
},
_function: function() {
/*
* function
* : FUNCTION S* expr ')' S*
* ;
*/
var tokenStream = this._tokenStream,
functionText = null,
expr = null,
lt;
if (tokenStream.match(Tokens.FUNCTION)) {
functionText = tokenStream.token().value;
this._readWhitespace();
expr = this._expr(true);
functionText += expr;
//START: Horrible hack in case it's an IE filter
if (this.options.ieFilters && tokenStream.peek() === Tokens.EQUALS) {
do {
if (this._readWhitespace()) {
functionText += tokenStream.token().value;
}
//might be second time in the loop
if (tokenStream.LA(0) === Tokens.COMMA) {
functionText += tokenStream.token().value;
}
tokenStream.match(Tokens.IDENT);
functionText += tokenStream.token().value;
tokenStream.match(Tokens.EQUALS);
functionText += tokenStream.token().value;
//functionText += this._term();
lt = tokenStream.peek();
while (lt !== Tokens.COMMA && lt !== Tokens.S && lt !== Tokens.RPAREN) {
tokenStream.get();
functionText += tokenStream.token().value;
lt = tokenStream.peek();
}
} while (tokenStream.match([Tokens.COMMA, Tokens.S]));
}
//END: Horrible Hack
tokenStream.match(Tokens.RPAREN);
functionText += ")";
this._readWhitespace();
}
return functionText;
},
_ie_function: function() {
/* (My own extension)
* ie_function
* : IE_FUNCTION S* IDENT '=' term [S* ','? IDENT '=' term]+ ')' S*
* ;
*/
var tokenStream = this._tokenStream,
functionText = null,
lt;
//IE function can begin like a regular function, too
if (tokenStream.match([Tokens.IE_FUNCTION, Tokens.FUNCTION])) {
functionText = tokenStream.token().value;
do {
if (this._readWhitespace()) {
functionText += tokenStream.token().value;
}
//might be second time in the loop
if (tokenStream.LA(0) === Tokens.COMMA) {
functionText += tokenStream.token().value;
}
tokenStream.match(Tokens.IDENT);
functionText += tokenStream.token().value;
tokenStream.match(Tokens.EQUALS);
functionText += tokenStream.token().value;
//functionText += this._term();
lt = tokenStream.peek();
while (lt !== Tokens.COMMA && lt !== Tokens.S && lt !== Tokens.RPAREN) {
tokenStream.get();
functionText += tokenStream.token().value;
lt = tokenStream.peek();
}
} while (tokenStream.match([Tokens.COMMA, Tokens.S]));
tokenStream.match(Tokens.RPAREN);
functionText += ")";
this._readWhitespace();
}
return functionText;
},
_hexcolor: function() {
/*
* There is a constraint on the color that it must
* have either 3 or 6 hex-digits (i.e., [0-9a-fA-F])
* after the "#"; e.g., "#000" is OK, but "#abcd" is not.
*
* hexcolor
* : HASH S*
* ;
*/
var tokenStream = this._tokenStream,
token = null,
color;
if (tokenStream.match(Tokens.HASH)) {
//need to do some validation here
token = tokenStream.token();
color = token.value;
if (!/#[a-f0-9]{3,6}/i.test(color)) {
throw new SyntaxError("Expected a hex color but found '" + color + "' at line " + token.startLine + ", col " + token.startCol + ".", token.startLine, token.startCol);
}
this._readWhitespace();
}
return token;
},
//-----------------------------------------------------------------
// Animations methods
//-----------------------------------------------------------------
_keyframes: function() {
/*
* keyframes:
* : KEYFRAMES_SYM S* keyframe_name S* '{' S* keyframe_rule* '}' {
* ;
*/
var tokenStream = this._tokenStream,
token,
tt,
name,
prefix = "";
tokenStream.mustMatch(Tokens.KEYFRAMES_SYM);
token = tokenStream.token();
if (/^@\-([^\-]+)\-/.test(token.value)) {
prefix = RegExp.$1;
}
this._readWhitespace();
name = this._keyframe_name();
this._readWhitespace();
tokenStream.mustMatch(Tokens.LBRACE);
this.fire({
type: "startkeyframes",
name: name,
prefix: prefix,
line: token.startLine,
col: token.startCol
});
this._readWhitespace();
tt = tokenStream.peek();
//check for key
while (tt === Tokens.IDENT || tt === Tokens.PERCENTAGE) {
this._keyframe_rule();
this._readWhitespace();
tt = tokenStream.peek();
}
this.fire({
type: "endkeyframes",
name: name,
prefix: prefix,
line: token.startLine,
col: token.startCol
});
this._readWhitespace();
tokenStream.mustMatch(Tokens.RBRACE);
this._readWhitespace();
},
_keyframe_name: function() {
/*
* keyframe_name:
* : IDENT
* | STRING
* ;
*/
var tokenStream = this._tokenStream;
tokenStream.mustMatch([Tokens.IDENT, Tokens.STRING]);
return SyntaxUnit.fromToken(tokenStream.token());
},
_keyframe_rule: function() {
/*
* keyframe_rule:
* : key_list S*
* '{' S* declaration [ ';' S* declaration ]* '}' S*
* ;
*/
var keyList = this._key_list();
this.fire({
type: "startkeyframerule",
keys: keyList,
line: keyList[0].line,
col: keyList[0].col
});
this._readDeclarations(true);
this.fire({
type: "endkeyframerule",
keys: keyList,
line: keyList[0].line,
col: keyList[0].col
});
},
_key_list: function() {
/*
* key_list:
* : key [ S* ',' S* key]*
* ;
*/
var tokenStream = this._tokenStream,
keyList = [];
//must be least one key
keyList.push(this._key());
this._readWhitespace();
while (tokenStream.match(Tokens.COMMA)) {
this._readWhitespace();
keyList.push(this._key());
this._readWhitespace();
}
return keyList;
},
_key: function() {
/*
* There is a restriction that IDENT can be only "from" or "to".
*
* key
* : PERCENTAGE
* | IDENT
* ;
*/
var tokenStream = this._tokenStream,
token;
if (tokenStream.match(Tokens.PERCENTAGE)) {
return SyntaxUnit.fromToken(tokenStream.token());
} else if (tokenStream.match(Tokens.IDENT)) {
token = tokenStream.token();
if (/from|to/i.test(token.value)) {
return SyntaxUnit.fromToken(token);
}
tokenStream.unget();
}
//if it gets here, there wasn't a valid token, so time to explode
this._unexpectedToken(tokenStream.LT(1));
},
//-----------------------------------------------------------------
// Helper methods
//-----------------------------------------------------------------
/**
* Not part of CSS grammar, but useful for skipping over
* combination of white space and HTML-style comments.
* @return {void}
* @method _skipCruft
* @private
*/
_skipCruft: function() {
while (this._tokenStream.match([Tokens.S, Tokens.CDO, Tokens.CDC])) {
//noop
}
},
/**
* Not part of CSS grammar, but this pattern occurs frequently
* in the official CSS grammar. Split out here to eliminate
* duplicate code.
* @param {Boolean} checkStart Indicates if the rule should check
* for the left brace at the beginning.
* @param {Boolean} readMargins Indicates if the rule should check
* for margin patterns.
* @return {void}
* @method _readDeclarations
* @private
*/
_readDeclarations: function(checkStart, readMargins) {
/*
* Reads the pattern
* S* '{' S* declaration [ ';' S* declaration ]* '}' S*
* or
* S* '{' S* [ declaration | margin ]? [ ';' S* [ declaration | margin ]? ]* '}' S*
* Note that this is how it is described in CSS3 Paged Media, but is actually incorrect.
* A semicolon is only necessary following a declaration if there's another declaration
* or margin afterwards.
*/
var tokenStream = this._tokenStream,
tt;
this._readWhitespace();
if (checkStart) {
tokenStream.mustMatch(Tokens.LBRACE);
}
this._readWhitespace();
try {
while (true) {
if (tokenStream.match(Tokens.SEMICOLON) || (readMargins && this._margin())) {
//noop
} else if (this._declaration()) {
if (!tokenStream.match(Tokens.SEMICOLON)) {
break;
}
} else {
break;
}
//if ((!this._margin() && !this._declaration()) || !tokenStream.match(Tokens.SEMICOLON)){
// break;
//}
this._readWhitespace();
}
tokenStream.mustMatch(Tokens.RBRACE);
this._readWhitespace();
} catch (ex) {
if (ex instanceof SyntaxError && !this.options.strict) {
//fire error event
this.fire({
type: "error",
error: ex,
message: ex.message,
line: ex.line,
col: ex.col
});
//see if there's another declaration
tt = tokenStream.advance([Tokens.SEMICOLON, Tokens.RBRACE]);
if (tt === Tokens.SEMICOLON) {
//if there's a semicolon, then there might be another declaration
this._readDeclarations(false, readMargins);
} else if (tt !== Tokens.RBRACE) {
//if there's a right brace, the rule is finished so don't do anything
//otherwise, rethrow the error because it wasn't handled properly
throw ex;
}
} else {
//not a syntax error, rethrow it
throw ex;
}
}
},
/**
* In some cases, you can end up with two white space tokens in a
* row. Instead of making a change in every function that looks for
* white space, this function is used to match as much white space
* as necessary.
* @method _readWhitespace
* @return {String} The white space if found, empty string if not.
* @private
*/
_readWhitespace: function() {
var tokenStream = this._tokenStream,
ws = "";
while (tokenStream.match(Tokens.S)) {
ws += tokenStream.token().value;
}
return ws;
},
/**
* Throws an error when an unexpected token is found.
* @param {Object} token The token that was found.
* @method _unexpectedToken
* @return {void}
* @private
*/
_unexpectedToken: function(token) {
throw new SyntaxError("Unexpected token '" + token.value + "' at line " + token.startLine + ", col " + token.startCol + ".", token.startLine, token.startCol);
},
/**
* Helper method used for parsing subparts of a style sheet.
* @return {void}
* @method _verifyEnd
* @private
*/
_verifyEnd: function() {
if (this._tokenStream.LA(1) !== Tokens.EOF) {
this._unexpectedToken(this._tokenStream.LT(1));
}
},
//-----------------------------------------------------------------
// Validation methods
//-----------------------------------------------------------------
_validateProperty: function(property, value) {
Validation.validate(property, value);
},
//-----------------------------------------------------------------
// Parsing methods
//-----------------------------------------------------------------
parse: function(input) {
this._tokenStream = new TokenStream(input, Tokens);
this._stylesheet();
},
parseStyleSheet: function(input) {
//just passthrough
return this.parse(input);
},
parseMediaQuery: function(input) {
this._tokenStream = new TokenStream(input, Tokens);
var result = this._media_query();
//if there's anything more, then it's an invalid selector
this._verifyEnd();
//otherwise return result
return result;
},
/**
* Parses a property value (everything after the semicolon).
* @return {parserlib.css.PropertyValue} The property value.
* @throws parserlib.util.SyntaxError If an unexpected token is found.
* @method parserPropertyValue
*/
parsePropertyValue: function(input) {
this._tokenStream = new TokenStream(input, Tokens);
this._readWhitespace();
var result = this._expr();
//okay to have a trailing white space
this._readWhitespace();
//if there's anything more, then it's an invalid selector
this._verifyEnd();
//otherwise return result
return result;
},
/**
* Parses a complete CSS rule, including selectors and
* properties.
* @param {String} input The text to parser.
* @return {Boolean} True if the parse completed successfully, false if not.
* @method parseRule
*/
parseRule: function(input) {
this._tokenStream = new TokenStream(input, Tokens);
//skip any leading white space
this._readWhitespace();
var result = this._ruleset();
//skip any trailing white space
this._readWhitespace();
//if there's anything more, then it's an invalid selector
this._verifyEnd();
//otherwise return result
return result;
},
/**
* Parses a single CSS selector (no comma)
* @param {String} input The text to parse as a CSS selector.
* @return {Selector} An object representing the selector.
* @throws parserlib.util.SyntaxError If an unexpected token is found.
* @method parseSelector
*/
parseSelector: function(input) {
this._tokenStream = new TokenStream(input, Tokens);
//skip any leading white space
this._readWhitespace();
var result = this._selector();
//skip any trailing white space
this._readWhitespace();
//if there's anything more, then it's an invalid selector
this._verifyEnd();
//otherwise return result
return result;
},
/**
* Parses an HTML style attribute: a set of CSS declarations
* separated by semicolons.
* @param {String} input The text to parse as a style attribute
* @return {void}
* @method parseStyleAttribute
*/
parseStyleAttribute: function(input) {
input += "}"; // for error recovery in _readDeclarations()
this._tokenStream = new TokenStream(input, Tokens);
this._readDeclarations();
}
};
//copy over onto prototype
for (prop in additions) {
if (Object.prototype.hasOwnProperty.call(additions, prop)) {
proto[prop] = additions[prop];
}
}
return proto;
}();
/*
nth
: S* [ ['-'|'+']? INTEGER? {N} [ S* ['-'|'+'] S* INTEGER ]? |
['-'|'+']? INTEGER | {O}{D}{D} | {E}{V}{E}{N} ] S*
;
*/
},{"../util/EventTarget":23,"../util/SyntaxError":25,"../util/SyntaxUnit":26,"./Combinator":2,"./MediaFeature":4,"./MediaQuery":5,"./PropertyName":8,"./PropertyValue":9,"./PropertyValuePart":11,"./Selector":13,"./SelectorPart":14,"./SelectorSubPart":15,"./TokenStream":17,"./Tokens":18,"./Validation":19}],7:[function(require,module,exports){
"use strict";
/* exported Properties */
var Properties = module.exports = {
__proto__: null,
//A
"align-items" : "flex-start | flex-end | center | baseline | stretch",
"align-content" : "flex-start | flex-end | center | space-between | space-around | stretch",
"align-self" : "auto | flex-start | flex-end | center | baseline | stretch",
"all" : "initial | inherit | unset",
"-webkit-align-items" : "flex-start | flex-end | center | baseline | stretch",
"-webkit-align-content" : "flex-start | flex-end | center | space-between | space-around | stretch",
"-webkit-align-self" : "auto | flex-start | flex-end | center | baseline | stretch",
"alignment-adjust" : "auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical | | ",
"alignment-baseline" : "auto | baseline | use-script | before-edge | text-before-edge | after-edge | text-after-edge | central | middle | ideographic | alphabetic | hanging | mathematical",
"animation" : 1,
"animation-delay" : "