1  'use strict';
 2  
 3  /**
 4   * Module dependencies
 5   */
 6  
 7  var Snapdragon = require('snapdragon');
 8  var define = require('define-property');
 9  var extend = require('extend-shallow');
10  
11  /**
12   * Local dependencies
13   */
14  
15  var compilers = require('./compilers');
16  var parsers = require('./parsers');
17  
18  /**
19   * Customize Snapdragon parser and renderer
20   */
21  
22  function Extglob(options) {
23    this.options = extend({source: 'extglob'}, options);
24    this.snapdragon = this.options.snapdragon || new Snapdragon(this.options);
25    this.snapdragon.patterns = this.snapdragon.patterns || {};
26    this.compiler = this.snapdragon.compiler;
27    this.parser = this.snapdragon.parser;
28  
29    compilers(this.snapdragon);
30    parsers(this.snapdragon);
31  
32    /**
33     * Override Snapdragon `.parse` method
34     */
35  
36    define(this.snapdragon, 'parse', function(str, options) {
37      var parsed = Snapdragon.prototype.parse.apply(this, arguments);
38      parsed.input = str;
39  
40      // escape unmatched brace/bracket/parens
41      var last = this.parser.stack.pop();
42      if (last && this.options.strict !== true) {
43        var node = last.nodes[0];
44        node.val = '\\' + node.val;
45        var sibling = node.parent.nodes[1];
46        if (sibling.type === 'star') {
47          sibling.loose = true;
48        }
49      }
50  
51      // add non-enumerable parser reference
52      define(parsed, 'parser', this.parser);
53      return parsed;
54    });
55  
56    /**
57     * Decorate `.parse` method
58     */
59  
60    define(this, 'parse', function(ast, options) {
61      return this.snapdragon.parse.apply(this.snapdragon, arguments);
62    });
63  
64    /**
65     * Decorate `.compile` method
66     */
67  
68    define(this, 'compile', function(ast, options) {
69      return this.snapdragon.compile.apply(this.snapdragon, arguments);
70    });
71  
72  }
73  
74  /**
75   * Expose `Extglob`
76   */
77  
78  module.exports = Extglob;