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59 řádky
1.7 KiB
59 řádky
1.7 KiB
"use strict";
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module.exports = CSSselect;
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var Pseudos = require("./lib/pseudos.js"),
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DomUtils = require("domutils"),
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findOne = DomUtils.findOne,
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findAll = DomUtils.findAll,
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getChildren = DomUtils.getChildren,
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removeSubsets = DomUtils.removeSubsets,
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falseFunc = require("boolbase").falseFunc,
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compile = require("./lib/compile.js"),
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compileUnsafe = compile.compileUnsafe,
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compileToken = compile.compileToken;
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function getSelectorFunc(searchFunc){
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return function select(query, elems, options){
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if(typeof query !== "function") query = compileUnsafe(query, options, elems);
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if(!Array.isArray(elems)) elems = getChildren(elems);
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else elems = removeSubsets(elems);
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return searchFunc(query, elems);
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};
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}
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var selectAll = getSelectorFunc(function selectAll(query, elems){
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return (query === falseFunc || !elems || elems.length === 0) ? [] : findAll(query, elems);
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});
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var selectOne = getSelectorFunc(function selectOne(query, elems){
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return (query === falseFunc || !elems || elems.length === 0) ? null : findOne(query, elems);
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});
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function is(elem, query, options){
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return (typeof query === "function" ? query : compile(query, options))(elem);
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}
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/*
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the exported interface
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*/
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function CSSselect(query, elems, options){
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return selectAll(query, elems, options);
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}
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CSSselect.compile = compile;
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CSSselect.filters = Pseudos.filters;
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CSSselect.pseudos = Pseudos.pseudos;
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CSSselect.selectAll = selectAll;
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CSSselect.selectOne = selectOne;
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CSSselect.is = is;
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//legacy methods (might be removed)
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CSSselect.parse = compile;
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CSSselect.iterate = selectAll;
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//hooks
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CSSselect._compileUnsafe = compileUnsafe;
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CSSselect._compileToken = compileToken;
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