68 lines
1.5 KiB
JavaScript
68 lines
1.5 KiB
JavaScript
function isTag(elem){
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return elem.nodeType === 1;
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}
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function getChildren(elem){
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return Array.prototype.slice.call(elem.childNodes, 0);
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}
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function getParent(elem){
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return elem.parentElement;
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}
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module.exports = {
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isTag: isTag,
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getSiblings: function(elem){
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var parent = getParent(elem);
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return parent && getChildren(parent);
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},
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getChildren: getChildren,
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getParent: getParent,
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getAttributeValue: function(elem, name){
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return elem.attributes[name].value;
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},
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hasAttrib: function(elem, name){
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return name in elem.attributes;
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},
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getName: function(elem){
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return elem.tagName.toLowerCase();
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},
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findOne: function findOne(test, arr){
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var elem = null;
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for(var i = 0, l = arr.length; i < l && !elem; i++){
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if(test(arr[i])){
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elem = arr[i];
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} else {
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var childs = getChildren(arr[i]);
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if(childs && childs.length > 0){
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elem = findOne(test, childs);
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}
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}
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}
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return elem;
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},
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findAll: function findAll(test, elems){
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var result = [];
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for(var i = 0, j = elems.length; i < j; i++){
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if(!isTag(elems[i])) continue;
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if(test(elems[i])) result.push(elems[i]);
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var childs = getChildren(elems[i]);
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if(childs) result = result.concat(findAll(test, childs));
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}
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return result;
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},
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//https://github.com/ded/qwery/blob/master/pseudos/qwery-pseudos.js#L47-54
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getText: function getText(elem) {
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var str = "",
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childs = getChildren(elem);
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if(!childs) return str;
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for(var i = 0; i < childs.length; i++){
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if(isTag(childs[i])) str += elem.textContent || elem.innerText || getText(childs[i]);
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}
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return str;
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}
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};
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