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72 lines
1.8 KiB
72 lines
1.8 KiB
9 years ago
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var utils = require('../utils');
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/**
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* Return the current selector or compile
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* selector from a string or a list.
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*
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* @param {String|Expression}
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* @return {String}
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* @api public
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*/
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(module.exports = function selector(){
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var stack = this.selectorStack
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, args = [].slice.call(arguments);
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if (1 == args.length) {
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var expr = utils.unwrap(args[0])
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, len = expr.nodes.length;
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// selector('.a')
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if (1 == len) {
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utils.assertString(expr.first, 'selector');
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var SelectorParser = require('../selector-parser')
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, val = expr.first.string
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, parsed = new SelectorParser(val).parse().val;
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if (parsed == val) return val;
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stack.push(parse(val));
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} else if (len > 1) {
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// selector-list = '.a', '.b', '.c'
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// selector(selector-list)
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if (expr.isList) {
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pushToStack(expr.nodes, stack);
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// selector('.a' '.b' '.c')
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} else {
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stack.push(parse(expr.nodes.map(function(node){
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utils.assertString(node, 'selector');
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return node.string;
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}).join(' ')));
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}
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}
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// selector('.a', '.b', '.c')
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} else if (args.length > 1) {
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pushToStack(args, stack);
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}
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return stack.length ? utils.compileSelectors(stack).join(',') : '&';
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}).raw = true;
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function pushToStack(selectors, stack) {
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selectors.forEach(function(sel) {
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sel = sel.first;
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utils.assertString(sel, 'selector');
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stack.push(parse(sel.string));
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});
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}
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function parse(selector) {
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var Parser = new require('../parser')
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, parser = new Parser(selector)
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, nodes;
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parser.state.push('selector-parts');
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nodes = parser.selector();
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nodes.forEach(function(node) {
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node.val = node.segments.map(function(seg){
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return seg.toString();
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}).join('');
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});
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return nodes;
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}
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