pulsar/vendor/slick.js

233 lines
6.7 KiB
JavaScript

// changed at the bottom to export the Slick object
/*
---
name: Slick.Parser
description: Standalone CSS3 Selector parser
provides: Slick.Parser
...
*/
;(function(){
var parsed,
separatorIndex,
combinatorIndex,
reversed,
cache = {},
reverseCache = {},
reUnescape = /\\/g;
var parse = function(expression, isReversed){
if (expression == null) return null;
if (expression.Slick === true) return expression;
expression = ('' + expression).replace(/^\s+|\s+$/g, '');
reversed = !!isReversed;
var currentCache = (reversed) ? reverseCache : cache;
if (currentCache[expression]) return currentCache[expression];
parsed = {
Slick: true,
expressions: [],
raw: expression,
reverse: function(){
return parse(this.raw, true);
}
};
separatorIndex = -1;
while (expression != (expression = expression.replace(regexp, parser)));
parsed.length = parsed.expressions.length;
return currentCache[parsed.raw] = (reversed) ? reverse(parsed) : parsed;
};
var reverseCombinator = function(combinator){
if (combinator === '!') return ' ';
else if (combinator === ' ') return '!';
else if ((/^!/).test(combinator)) return combinator.replace(/^!/, '');
else return '!' + combinator;
};
var reverse = function(expression){
var expressions = expression.expressions;
for (var i = 0; i < expressions.length; i++){
var exp = expressions[i];
var last = {parts: [], tag: '*', combinator: reverseCombinator(exp[0].combinator)};
for (var j = 0; j < exp.length; j++){
var cexp = exp[j];
if (!cexp.reverseCombinator) cexp.reverseCombinator = ' ';
cexp.combinator = cexp.reverseCombinator;
delete cexp.reverseCombinator;
}
exp.reverse().push(last);
}
return expression;
};
var escapeRegExp = function(string){// Credit: XRegExp 0.6.1 (c) 2007-2008 Steven Levithan <http://stevenlevithan.com/regex/xregexp/> MIT License
return string.replace(/[-[\]{}()*+?.\\^$|,#\s]/g, function(match){
return '\\' + match;
});
};
var regexp = new RegExp(
/*
#!/usr/bin/env ruby
puts "\t\t" + DATA.read.gsub(/\(\?x\)|\s+#.*$|\s+|\\$|\\n/,'')
__END__
"(?x)^(?:\
\\s* ( , ) \\s* # Separator \n\
| \\s* ( <combinator>+ ) \\s* # Combinator \n\
| ( \\s+ ) # CombinatorChildren \n\
| ( <unicode>+ | \\* ) # Tag \n\
| \\# ( <unicode>+ ) # ID \n\
| \\. ( <unicode>+ ) # ClassName \n\
| # Attribute \n\
\\[ \
\\s* (<unicode1>+) (?: \
\\s* ([*^$!~|]?=) (?: \
\\s* (?:\
([\"']?)(.*?)\\9 \
)\
) \
)? \\s* \
\\](?!\\]) \n\
| :+ ( <unicode>+ )(?:\
\\( (?:\
(?:([\"'])([^\\12]*)\\12)|((?:\\([^)]+\\)|[^()]*)+)\
) \\)\
)?\
)"
*/
"^(?:\\s*(,)\\s*|\\s*(<combinator>+)\\s*|(\\s+)|(<unicode>+|\\*)|\\#(<unicode>+)|\\.(<unicode>+)|\\[\\s*(<unicode1>+)(?:\\s*([*^$!~|]?=)(?:\\s*(?:([\"']?)(.*?)\\9)))?\\s*\\](?!\\])|(:+)(<unicode>+)(?:\\((?:(?:([\"'])([^\\13]*)\\13)|((?:\\([^)]+\\)|[^()]*)+))\\))?)"
.replace(/<combinator>/, '[' + escapeRegExp(">+~`!@$%^&={}\\;</") + ']')
.replace(/<unicode>/g, '(?:[\\w\\u00a1-\\uFFFF-]|\\\\[^\\s0-9a-f])')
.replace(/<unicode1>/g, '(?:[:\\w\\u00a1-\\uFFFF-]|\\\\[^\\s0-9a-f])')
);
function parser(
rawMatch,
separator,
combinator,
combinatorChildren,
tagName,
id,
className,
attributeKey,
attributeOperator,
attributeQuote,
attributeValue,
pseudoMarker,
pseudoClass,
pseudoQuote,
pseudoClassQuotedValue,
pseudoClassValue
){
if (separator || separatorIndex === -1){
parsed.expressions[++separatorIndex] = [];
combinatorIndex = -1;
if (separator) return '';
}
if (combinator || combinatorChildren || combinatorIndex === -1){
combinator = combinator || ' ';
var currentSeparator = parsed.expressions[separatorIndex];
if (reversed && currentSeparator[combinatorIndex])
currentSeparator[combinatorIndex].reverseCombinator = reverseCombinator(combinator);
currentSeparator[++combinatorIndex] = {combinator: combinator, tag: '*'};
}
var currentParsed = parsed.expressions[separatorIndex][combinatorIndex];
if (tagName){
currentParsed.tag = tagName.replace(reUnescape, '');
} else if (id){
currentParsed.id = id.replace(reUnescape, '');
} else if (className){
className = className.replace(reUnescape, '');
if (!currentParsed.classList) currentParsed.classList = [];
if (!currentParsed.classes) currentParsed.classes = [];
currentParsed.classList.push(className);
currentParsed.classes.push({
value: className,
regexp: new RegExp('(^|\\s)' + escapeRegExp(className) + '(\\s|$)')
});
} else if (pseudoClass){
pseudoClassValue = pseudoClassValue || pseudoClassQuotedValue;
pseudoClassValue = pseudoClassValue ? pseudoClassValue.replace(reUnescape, '') : null;
if (!currentParsed.pseudos) currentParsed.pseudos = [];
currentParsed.pseudos.push({
key: pseudoClass.replace(reUnescape, ''),
value: pseudoClassValue,
type: pseudoMarker.length == 1 ? 'class' : 'element'
});
} else if (attributeKey){
attributeKey = attributeKey.replace(reUnescape, '');
attributeValue = (attributeValue || '').replace(reUnescape, '');
var test, regexp;
switch (attributeOperator){
case '^=' : regexp = new RegExp( '^'+ escapeRegExp(attributeValue) ); break;
case '$=' : regexp = new RegExp( escapeRegExp(attributeValue) +'$' ); break;
case '~=' : regexp = new RegExp( '(^|\\s)'+ escapeRegExp(attributeValue) +'(\\s|$)' ); break;
case '|=' : regexp = new RegExp( '^'+ escapeRegExp(attributeValue) +'(-|$)' ); break;
case '=' : test = function(value){
return attributeValue == value;
}; break;
case '*=' : test = function(value){
return value && value.indexOf(attributeValue) > -1;
}; break;
case '!=' : test = function(value){
return attributeValue != value;
}; break;
default : test = function(value){
return !!value;
};
}
if (attributeValue == '' && (/^[*$^]=$/).test(attributeOperator)) test = function(){
return false;
};
if (!test) test = function(value){
return value && regexp.test(value);
};
if (!currentParsed.attributes) currentParsed.attributes = [];
currentParsed.attributes.push({
key: attributeKey,
operator: attributeOperator,
value: attributeValue,
test: test
});
}
return '';
};
// Slick NS
var Slick = (this.Slick || {});
Slick.parse = function(expression){
return parse(expression);
};
Slick.escapeRegExp = escapeRegExp;
this.exports = Slick
}).apply(module);