ce4c83ff
 wxy
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var utils = require('../utils');
/**
* Return the current selector or compile
* selector from a string or a list.
*
* @param {String|Expression}
* @return {String}
* @api public
*/
(module.exports = function selector(){
var stack = this.selectorStack
, args = [].slice.call(arguments);
if (1 == args.length) {
var expr = utils.unwrap(args[0])
, len = expr.nodes.length;
// selector('.a')
if (1 == len) {
utils.assertString(expr.first, 'selector');
var SelectorParser = require('../selector-parser')
, val = expr.first.string
, parsed = new SelectorParser(val).parse().val;
if (parsed == val) return val;
stack.push(parse(val));
} else if (len > 1) {
// selector-list = '.a', '.b', '.c'
// selector(selector-list)
if (expr.isList) {
pushToStack(expr.nodes, stack);
// selector('.a' '.b' '.c')
} else {
stack.push(parse(expr.nodes.map(function(node){
utils.assertString(node, 'selector');
return node.string;
}).join(' ')));
}
}
// selector('.a', '.b', '.c')
} else if (args.length > 1) {
pushToStack(args, stack);
}
return stack.length ? utils.compileSelectors(stack).join(',') : '&';
}).raw = true;
function pushToStack(selectors, stack) {
selectors.forEach(function(sel) {
sel = sel.first;
utils.assertString(sel, 'selector');
stack.push(parse(sel.string));
});
}
function parse(selector) {
var Parser = new require('../parser')
, parser = new Parser(selector)
, nodes;
parser.state.push('selector-parts');
nodes = parser.selector();
nodes.forEach(function(node) {
node.val = node.segments.map(function(seg){
return seg.toString();
}).join('');
});
return nodes;
}
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