Файл: framework/thirdparty/jquery-selector/src/jquery.selector.js
Строк: 157
<?php
(function($){
var tokens = {
UNICODE: /\[0-9a-f]{1,6}(?:rn|[ nrtf])?/,
ESCAPE: /(?:UNICODE)|\[^nrf0-9a-f]/,
NONASCII: /[^x00-x7F]/,
NMSTART: /[_a-z]|(?:NONASCII)|(?:ESCAPE)/,
NMCHAR: /[_a-z0-9-]|(?:NONASCII)|(?:ESCAPE)/,
IDENT: /-?(?:NMSTART)(?:NMCHAR)*/,
NL: /n|rn|r|f/,
STRING: /(?:STRING1)|(?:STRING2)|(?:STRINGBARE)/,
STRING1: /"(?:(?:ESCAPE)|\(?:NL)|[^nrf"])*"/,
STRING2: /'(?:(?:ESCAPE)|\(?:NL)|[^nrf'])*'/,
STRINGBARE: /(?:(?:ESCAPE)|\(?:NL)|[^nrf]])*/,
FUNCTION: /(?:IDENT)()/,
INTEGER: /[0-9]+/,
WITHN: /([-+])?(INTEGER)?(n)s*(?:([-+])s*(INTEGER))?/,
WITHOUTN: /([-+])?(INTEGER)/
}
var rx = {
not: /:not(/,
not_end: /)/,
tag: /((?:IDENT)|*)/,
id: /#(IDENT)/,
cls: /.(IDENT)/,
attr: /[s*(IDENT)s*(?:([^=]?=)s*(STRING)s*)?]/,
pseudo_el: /(?::(first-line|first-letter|before|after))|(?:::((?:FUNCTION)|(?:IDENT)))/,
pseudo_cls_nth: /:nth-child(s*(?:(?:WITHN)|(?:WITHOUTN)|(odd|even))s*)/,
pseudo_cls: /:(IDENT)/,
comb: /s*(+|~|>)s*|s+/,
comma: /s*,s*/,
important: /s+!importants*$/
}
/* Replace placeholders with actual regex, and mark all as case insensitive */
var token = /[A-Z][A-Z0-9]+/;
for (var k in rx) {
var src = rx[k].source;
while (m = src.match(token)) src = src.replace(m[0], tokens[m[0]].source);
rx[k] = new RegExp(src, 'gi');
}
/**
* A string that matches itself against regexii, and keeps track of how much of itself has been matched
*/
var ConsumableString = Base.extend({
init: function(str) {
this.str = str;
this.pos = 0;
},
match: function(rx) {
var m;
rx.lastIndex = this.pos;
if ((m = rx.exec(this.str)) && m.index == this.pos ) {
this.pos = rx.lastIndex ? rx.lastIndex : this.str.length ;
return m;
}
return null;
},
peek: function(rx) {
var m;
rx.lastIndex = this.pos;
if ((m = rx.exec(this.str)) && m.index == this.pos ) return m;
return null;
},
showpos: function() {
return this.str.slice(0,this.pos)+'<HERE>' + this.str.slice(this.pos);
},
done: function() {
return this.pos == this.str.length;
}
})
/* A base class that all Selectors inherit off */
var SelectorBase = Base.extend({});
/**
* A class representing a Simple Selector, as per the CSS3 selector spec
*/
var SimpleSelector = SelectorBase.extend({
init: function() {
this.tag = null;
this.id = null;
this.classes = [];
this.attrs = [];
this.nots = [];
this.pseudo_classes = [];
this.pseudo_els = [];
},
parse: function(selector) {
var m;
/* Pull out the initial tag first, if there is one */
if (m = selector.match(rx.tag)) this.tag = m[1];
/* Then for each selection type, try and find a match */
do {
if (m = selector.match(rx.not)) {
this.nots[this.nots.length] = SelectorsGroup().parse(selector)
if (!(m = selector.match(rx.not_end))) {
throw 'Invalid :not term in selector';
}
}
else if (m = selector.match(rx.id)) this.id = m[1];
else if (m = selector.match(rx.cls)) this.classes[this.classes.length] = m[1];
else if (m = selector.match(rx.attr)) this.attrs[this.attrs.length] = [ m[1], m[2], m[3] ];
else if (m = selector.match(rx.pseudo_el)) this.pseudo_els[this.pseudo_els.length] = m[1] || m[2];
else if (m = selector.match(rx.pseudo_cls_nth)) {
if (m[3]) {
var a = parseInt((m[1]||'')+(m[2]||'1'));
var b = parseInt((m[4]||'')+(m[5]||'0'));
}
else {
var a = m[8] ? 2 : 0;
var b = m[8] ? (4-m[8].length) : parseInt((m[6]||'')+m[7]);
}
this.pseudo_classes[this.pseudo_classes.length] = ['nth-child', [a, b]];
}
else if (m = selector.match(rx.pseudo_cls)) this.pseudo_classes[this.pseudo_classes.length] = [m[1]];
} while(m && !selector.done());
return this;
}
})
/**
* A class representing a Selector, as per the CSS3 selector spec
*/
var Selector = SelectorBase.extend({
init: function(){
this.parts = [];
},
parse: function(cons){
this.parts[this.parts.length] = SimpleSelector().parse(cons);
while (!cons.done() && !cons.peek(rx.comma) && (m = cons.match(rx.comb))) {
this.parts[this.parts.length] = m[1] || ' ';
this.parts[this.parts.length] = SimpleSelector().parse(cons);
}
return this.parts.length == 1 ? this.parts[0] : this;
}
});
/**
* A class representing a sequence of selectors, as per the CSS3 selector spec
*/
var SelectorsGroup = SelectorBase.extend({
init: function(){
this.parts = [];
},
parse: function(cons){
this.parts[this.parts.length] = Selector().parse(cons);
while (!cons.done() && (m = cons.match(rx.comma))) {
this.parts[this.parts.length] = Selector().parse(cons);
}
return this.parts.length == 1 ? this.parts[0] : this;
}
});
$.selector = function(s){
var cons = ConsumableString(s);
var res = SelectorsGroup().parse(cons);
res.selector = s;
if (!cons.done()) throw 'Could not parse selector - ' + cons.showpos() ;
else return res;
}
$.selector.SelectorBase = SelectorBase;
$.selector.SimpleSelector = SimpleSelector;
$.selector.Selector = Selector;
$.selector.SelectorsGroup = SelectorsGroup;
})(jQuery)
?>