DevTools: Introduce WebInspector.RegExpSetting.

Source/devtools/front_end/FileSystemMapping.js

 /*
  * Copyright (C) 2012 Google Inc. 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
@@ skipping 54 matching lines @@
         "/.*~$"
     ];
     var defaultExcludedFolders = defaultCommonExcludedFolders;
     if (WebInspector.isWin())
         defaultExcludedFolders = defaultExcludedFolders.concat(defaultWinExcludedFolders);
     else if (WebInspector.isMac())
         defaultExcludedFolders = defaultExcludedFolders.concat(defaultMacExcludedFolders);
     else
         defaultExcludedFolders = defaultExcludedFolders.concat(defaultLinuxExcludedFolders);
     var defaultExcludedFoldersPattern = defaultExcludedFolders.join("|");
-    WebInspector.settings.workspaceFolderExcludePattern = WebInspector.settings.createSetting("workspaceFolderExcludePattern", defaultExcludedFoldersPattern);
+    WebInspector.settings.workspaceFolderExcludePattern = WebInspector.settings.createRegExpSetting("workspaceFolderExcludePattern", defaultExcludedFoldersPattern, WebInspector.isWin() ? "i" : "");
     /** @type {!Object.<string, !Array.<!WebInspector.FileSystemMapping.Entry>>} */
     this._fileSystemMappings = {};
     /** @type {!Object.<string, !Array.<!WebInspector.FileSystemMapping.ExcludedFolderEntry>>} */
     this._excludedFolders = {};
     this._loadFromSettings();
 }
 
 WebInspector.FileSystemMapping.Events = {
     FileMappingAdded: "FileMappingAdded",
     FileMappingRemoved: "FileMappingRemoved",
@@ skipping 28 matching lines @@
             this._excludedFolders[fileSystemPath] = [];
             var excludedFolders = this._excludedFolders[fileSystemPath];
 
             for (var i = 0; i < savedExcludedFoldersForPath.length; ++i) {
                 var savedEntry = savedExcludedFoldersForPath[i];
                 var entry = new WebInspector.FileSystemMapping.ExcludedFolderEntry(savedEntry.fileSystemPath, savedEntry.path);
                 excludedFolders.push(entry);
             }
         }
 
-        var workspaceFolderExcludePattern = WebInspector.settings.workspaceFolderExcludePattern.get()
-        try {
-            var flags = WebInspector.isWin() ? "i" : "";
-            this._workspaceFolderExcludeRegex = workspaceFolderExcludePattern ? new RegExp(workspaceFolderExcludePattern, flags) : null;
-        } catch (e) {
-        }
-
         this._rebuildIndexes();
     },
 
     _saveToSettings: function()
     {
         var savedMapping = this._fileSystemMappings;
         this._fileSystemMappingSetting.set(savedMapping);
 
         var savedExcludedFolders = this._excludedFolders;
         this._excludedFoldersSetting.set(savedExcludedFolders);
@@ skipping 181 matching lines @@
      * @return {boolean}
      */
     isFileExcluded: function(fileSystemPath, folderPath)
     {
         var excludedFolders = this._excludedFolders[fileSystemPath] || [];
         for (var i = 0; i < excludedFolders.length; ++i) {
             var entry = excludedFolders[i];
             if (entry.path === folderPath)
                 return true;
         }
-        return this._workspaceFolderExcludeRegex && this._workspaceFolderExcludeRegex.test(folderPath);
+        var regex = WebInspector.settings.workspaceFolderExcludePattern.asRegExp();
+        return regex && regex.test(folderPath);
     },
 
     /**
      * @param {string} fileSystemPath
      * @return {!Array.<!WebInspector.FileSystemMapping.ExcludedFolderEntry>}
      */
     excludedFolders: function(fileSystemPath)
     {
         var excludedFolders = this._excludedFolders[fileSystemPath];
         return excludedFolders ? excludedFolders.slice() : [];
@@ skipping 98 matching lines @@
 /**
  * @constructor
  * @param {string} fileSystemPath
  * @param {string} path
  */
 WebInspector.FileSystemMapping.ExcludedFolderEntry = function(fileSystemPath, path)
 {
     this.fileSystemPath = fileSystemPath;
     this.path = path;
 }