aaac7fed
 liuqimichale
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"use strict";
module.exports = CSSselect;
var Pseudos = require("./lib/pseudos.js"),
DomUtils = require("domutils"),
findOne = DomUtils.findOne,
findAll = DomUtils.findAll,
getChildren = DomUtils.getChildren,
removeSubsets = DomUtils.removeSubsets,
falseFunc = require("boolbase").falseFunc,
compile = require("./lib/compile.js"),
compileUnsafe = compile.compileUnsafe,
compileToken = compile.compileToken;
function getSelectorFunc(searchFunc){
return function select(query, elems, options){
if(typeof query !== "function") query = compileUnsafe(query, options, elems);
if(!Array.isArray(elems)) elems = getChildren(elems);
else elems = removeSubsets(elems);
return searchFunc(query, elems);
};
}
var selectAll = getSelectorFunc(function selectAll(query, elems){
return (query === falseFunc || !elems || elems.length === 0) ? [] : findAll(query, elems);
});
var selectOne = getSelectorFunc(function selectOne(query, elems){
return (query === falseFunc || !elems || elems.length === 0) ? null : findOne(query, elems);
});
function is(elem, query, options){
return (typeof query === "function" ? query : compile(query, options))(elem);
}
/*
the exported interface
*/
function CSSselect(query, elems, options){
return selectAll(query, elems, options);
}
CSSselect.compile = compile;
CSSselect.filters = Pseudos.filters;
CSSselect.pseudos = Pseudos.pseudos;
CSSselect.selectAll = selectAll;
CSSselect.selectOne = selectOne;
CSSselect.is = is;
//legacy methods (might be removed)
CSSselect.parse = compile;
CSSselect.iterate = selectAll;
//hooks
CSSselect._compileUnsafe = compileUnsafe;
CSSselect._compileToken = compileToken;
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