1 files changed, 104 insertions, 0 deletions
diff --git a/node_modules/braces/lib/braces.js b/node_modules/braces/lib/braces.js
new file mode 100644
index 0000000..baf6bf1
--- /dev/null
+++ b/node_modules/braces/lib/braces.js
@@ -0,0 +1,104 @@
+'use strict';
+
+var extend = require('extend-shallow');
+var Snapdragon = require('snapdragon');
+var compilers = require('./compilers');
+var parsers = require('./parsers');
+var utils = require('./utils');
+
+/**
+ * Customize Snapdragon parser and renderer
+ */
+
+function Braces(options) {
+  this.options = extend({}, options);
+}
+
+/**
+ * Initialize braces
+ */
+
+Braces.prototype.init = function(options) {
+  if (this.isInitialized) return;
+  this.isInitialized = true;
+  var opts = utils.createOptions({}, this.options, options);
+  this.snapdragon = this.options.snapdragon || new Snapdragon(opts);
+  this.compiler = this.snapdragon.compiler;
+  this.parser = this.snapdragon.parser;
+
+  compilers(this.snapdragon, opts);
+  parsers(this.snapdragon, opts);
+
+  /**
+   * Call Snapdragon `.parse` method. When AST is returned, we check to
+   * see if any unclosed braces are left on the stack and, if so, we iterate
+   * over the stack and correct the AST so that compilers are called in the correct
+   * order and unbalance braces are properly escaped.
+   */
+
+  utils.define(this.snapdragon, 'parse', function(pattern, options) {
+    var parsed = Snapdragon.prototype.parse.apply(this, arguments);
+    this.parser.ast.input = pattern;
+
+    var stack = this.parser.stack;
+    while (stack.length) {
+      addParent({type: 'brace.close', val: ''}, stack.pop());
+    }
+
+    function addParent(node, parent) {
+      utils.define(node, 'parent', parent);
+      parent.nodes.push(node);
+    }
+
+    // add non-enumerable parser reference
+    utils.define(parsed, 'parser', this.parser);
+    return parsed;
+  });
+};
+
+/**
+ * Decorate `.parse` method
+ */
+
+Braces.prototype.parse = function(ast, options) {
+  if (ast && typeof ast === 'object' && ast.nodes) return ast;
+  this.init(options);
+  return this.snapdragon.parse(ast, options);
+};
+
+/**
+ * Decorate `.compile` method
+ */
+
+Braces.prototype.compile = function(ast, options) {
+  if (typeof ast === 'string') {
+    ast = this.parse(ast, options);
+  } else {
+    this.init(options);
+  }
+  return this.snapdragon.compile(ast, options);
+};
+
+/**
+ * Expand
+ */
+
+Braces.prototype.expand = function(pattern) {
+  var ast = this.parse(pattern, {expand: true});
+  return this.compile(ast, {expand: true});
+};
+
+/**
+ * Optimize
+ */
+
+Braces.prototype.optimize = function(pattern) {
+  var ast = this.parse(pattern, {optimize: true});
+  return this.compile(ast, {optimize: true});
+};
+
+/**
+ * Expose `Braces`
+ */
+
+module.exports = Braces;