text: /* ***** BEGIN LICENSE BLOCK *****
   * Distributed under the BSD license:
   *
   * Copyright (c) 2010, Ajax.org B.V.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above copyright
   *       notice, this list of conditions and the following disclaimer in the
   *       documentation and/or other materials provided with the distribution.
   *     * Neither the name of Ajax.org B.V. nor the
   *       names of its contributors may be used to endorse or promote products
   *       derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * ***** END LICENSE BLOCK ***** */
  
  define(function(require, exports, module) {
  "use strict";
  
  var oop = require("../lib/oop");
  var JavaScriptHighlightRules = require("./javascript_highlight_rules").JavaScriptHighlightRules;
  var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;
  
  var SJSHighlightRules = function() {
      var parent = new JavaScriptHighlightRules();
      var escapedRe = "\\\\(?:x[0-9a-fA-F]{2}|" + // hex
          "u[0-9a-fA-F]{4}|" + // unicode
          "[0-2][0-7]{0,2}|" + // oct
          "3[0-6][0-7]?|" + // oct
          "37[0-7]?|" + // oct
          "[4-7][0-7]?|" + //oct
          ".)";
  
      var contextAware = function(f) {
          f.isContextAware = true;
          return f;
      };
  
      var ctxBegin = function(opts) {
          return {
              token: opts.token,
              regex: opts.regex,
              next: contextAware(function(currentState, stack) {
                  if (stack.length === 0)
                      stack.unshift(currentState);
                  stack.unshift(opts.next);
                  return opts.next;
              }),
          };
      };
  
      var ctxEnd = function(opts) {
          return {
              token: opts.token,
              regex: opts.regex,
              next: contextAware(function(currentState, stack) {
                  stack.shift();
                  return stack[0] || "start";
              }),
          };
      };
  
      this.$rules = parent.$rules;
      this.$rules.no_regex = [
          {
              token: "keyword",
              regex: "(waitfor|or|and|collapse|spawn|retract)\\b"
          },
          {
              token: "keyword.operator",
              regex: "(->|=>|\\.\\.)"
          },
          {
              token: "variable.language",
              regex: "(hold|default)\\b"
          },
          ctxBegin({
              token: "string",
              regex: "`",
              next: "bstring"
          }),
          ctxBegin({
              token: "string",
              regex: '"',
              next: "qqstring"
          }),
          ctxBegin({
              token: "string",
              regex: '"',
              next: "qqstring"
          }),
          {
              token: ["paren.lparen", "text", "paren.rparen"],
              regex: "(\\{)(\\s*)(\\|)",
              next: "block_arguments",
          }
  
      ].concat(this.$rules.no_regex);
  
      this.$rules.block_arguments = [
          {
              token: "paren.rparen",
              regex: "\\|",
              next: "no_regex",
          }
      ].concat(this.$rules.function_arguments);
  
      this.$rules.bstring = [
          {
              token : "constant.language.escape",
              regex : escapedRe
          },
          {
              token : "string",
              regex : "\\\\$",
              next: "bstring"
          },
          ctxBegin({
              token : "paren.lparen",
              regex : "\\$\\{",
              next: "string_interp"
          }),
          ctxBegin({
              token : "paren.lparen",
              regex : "\\$",
              next: "bstring_interp_single"
          }),
          ctxEnd({
              token : "string",
              regex : "`",
          }),
          {
              defaultToken: "string"
          }
      ];
      
      this.$rules.qqstring = [
          {
              token : "constant.language.escape",
              regex : escapedRe
          },
          {
              token : "string",
              regex : "\\\\$",
              next: "qqstring",
          },
          ctxBegin({
              token : "paren.lparen",
              regex : "#\\{",
              next: "string_interp"
          }),
          ctxEnd({
              token : "string",
              regex : '"',
          }),
          {
              defaultToken: "string"
          }
      ];
  
      // collect all context-aware (or stateless), brace-less
      // states. This gives us most normal highlighting
      // for use within interpreted contexts
      // without interfering with context nesting
      var embeddableRules = [];
      for (var i=0; i<this.$rules.no_regex.length; i++) {
          var rule = this.$rules.no_regex[i];
          var token = String(rule.token);
          if(token.indexOf('paren') == -1 && (!rule.next || rule.next.isContextAware)) {
              embeddableRules.push(rule);
          }
      };
  
      this.$rules.string_interp = [
          ctxEnd({
              token: "paren.rparen",
              regex: "\\}"
          }),
          ctxBegin({
              token: "paren.lparen",
              regex: '{',
              next: "string_interp"
          })
      ].concat(embeddableRules);
  
      // backtick strings can have single interpolation, which accept
      // \w+ followed by an optional set of function call parens
      this.$rules.bstring_interp_single = [
          {
              token: ["identifier", "paren.lparen"],
              regex: '(\\w+)(\\()',
              next: 'bstring_interp_single_call'
          },
          // identifier-only match ends this interp
          ctxEnd({
              token : "identifier",
              regex : "\\w*",
          })
      ];
      
      // the call part of a bstring_interp_single
      // is terminated by a close paren `)`, but
      // can have nested parens.
      this.$rules.bstring_interp_single_call = [
          ctxBegin({
              token: "paren.lparen",
              regex: "\\(",
              next: "bstring_interp_single_call"
          }),
          ctxEnd({
              token: "paren.rparen",
              regex: "\\)"
          })
      ].concat(embeddableRules);
  }
  oop.inherits(SJSHighlightRules, TextHighlightRules);
  
  exports.SJSHighlightRules = SJSHighlightRules;
  });
  