25'ten fazla konu seçemezsiniz
Konular bir harf veya rakamla başlamalı, kısa çizgiler ('-') içerebilir ve en fazla 35 karakter uzunluğunda olabilir.
181 satır
4.3 KiB
181 satır
4.3 KiB
var DomUtils = require("domutils"),
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hasAttrib = DomUtils.hasAttrib,
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getAttributeValue = DomUtils.getAttributeValue,
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falseFunc = require("boolbase").falseFunc;
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//https://github.com/slevithan/XRegExp/blob/master/src/xregexp.js#L469
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var reChars = /[-[\]{}()*+?.,\\^$|#\s]/g;
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/*
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attribute selectors
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*/
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var attributeRules = {
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__proto__: null,
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equals: function(next, data){
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var name = data.name,
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value = data.value;
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if(data.ignoreCase){
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value = value.toLowerCase();
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return function equalsIC(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && attr.toLowerCase() === value && next(elem);
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};
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}
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return function equals(elem){
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return getAttributeValue(elem, name) === value && next(elem);
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};
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},
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hyphen: function(next, data){
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var name = data.name,
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value = data.value,
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len = value.length;
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if(data.ignoreCase){
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value = value.toLowerCase();
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return function hyphenIC(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null &&
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(attr.length === len || attr.charAt(len) === "-") &&
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attr.substr(0, len).toLowerCase() === value &&
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next(elem);
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};
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}
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return function hyphen(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null &&
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attr.substr(0, len) === value &&
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(attr.length === len || attr.charAt(len) === "-") &&
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next(elem);
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};
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},
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element: function(next, data){
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var name = data.name,
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value = data.value;
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if(/\s/.test(value)){
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return falseFunc;
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}
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value = value.replace(reChars, "\\$&");
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var pattern = "(?:^|\\s)" + value + "(?:$|\\s)",
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flags = data.ignoreCase ? "i" : "",
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regex = new RegExp(pattern, flags);
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return function element(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && regex.test(attr) && next(elem);
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};
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},
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exists: function(next, data){
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var name = data.name;
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return function exists(elem){
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return hasAttrib(elem, name) && next(elem);
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};
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},
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start: function(next, data){
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var name = data.name,
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value = data.value,
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len = value.length;
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if(len === 0){
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return falseFunc;
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}
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if(data.ignoreCase){
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value = value.toLowerCase();
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return function startIC(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && attr.substr(0, len).toLowerCase() === value && next(elem);
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};
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}
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return function start(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && attr.substr(0, len) === value && next(elem);
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};
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},
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end: function(next, data){
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var name = data.name,
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value = data.value,
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len = -value.length;
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if(len === 0){
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return falseFunc;
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}
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if(data.ignoreCase){
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value = value.toLowerCase();
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return function endIC(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && attr.substr(len).toLowerCase() === value && next(elem);
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};
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}
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return function end(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && attr.substr(len) === value && next(elem);
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};
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},
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any: function(next, data){
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var name = data.name,
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value = data.value;
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if(value === ""){
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return falseFunc;
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}
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if(data.ignoreCase){
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var regex = new RegExp(value.replace(reChars, "\\$&"), "i");
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return function anyIC(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && regex.test(attr) && next(elem);
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};
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}
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return function any(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && attr.indexOf(value) >= 0 && next(elem);
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};
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},
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not: function(next, data){
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var name = data.name,
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value = data.value;
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if(value === ""){
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return function notEmpty(elem){
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return !!getAttributeValue(elem, name) && next(elem);
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};
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} else if(data.ignoreCase){
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value = value.toLowerCase();
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return function notIC(elem){
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var attr = getAttributeValue(elem, name);
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return attr != null && attr.toLowerCase() !== value && next(elem);
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};
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}
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return function not(elem){
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return getAttributeValue(elem, name) !== value && next(elem);
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};
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}
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};
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module.exports = {
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compile: function(next, data, options){
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if(options && options.strict && (
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data.ignoreCase || data.action === "not"
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)) throw SyntaxError("Unsupported attribute selector");
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return attributeRules[data.action](next, data);
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},
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rules: attributeRules
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};
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