isearch: add regexp support

lib/ace/incremental_search.js

@@ -64,6 +64,34 @@ function IncrementalSearch() {
 
 oop.inherits(IncrementalSearch, Search);
 
+// regexp handling
+
+function isRegExp(obj) {
+    return obj instanceof RegExp;
+}
+
+function regExpToObject(re) {
+    var string = String(re),
+        start = string.indexOf('/'),
+        flagStart = string.lastIndexOf('/');
+    return {
+        expression: string.slice(start+1, flagStart),
+        flags: string.slice(flagStart+1)
+    }
+}
+
+function stringToRegExp(string, flags) {
+    try {
+        return new RegExp(string, flags);
+    } catch (e) { return string; }
+}
+
+function objectToRegExp(obj) {
+    return stringToRegExp(obj.expression, obj.flags);
+}
+
+// iSearch class
+
 ;(function() {
 
     this.activate = function(ed, backwards) {
@@ -140,7 +168,9 @@ oop.inherits(IncrementalSearch, Search);
         // try to find the next occurence and enable  highlighting marker
         options.start = this.$currentPos;
         var session = this.$editor.session,
-            found = this.find(session);
+            found = this.find(session),
+            shouldSelect = this.$editor.emacsMark ?
+                !!this.$editor.emacsMark() : !this.$editor.selection.isEmpty();
         if (found) {
             if (options.backwards) found = Range.fromPoints(found.end, found.start);
             this.$editor.moveCursorToPosition(found.end);
@@ -156,13 +186,21 @@ oop.inherits(IncrementalSearch, Search);
 
     this.addString = function(s) {
         return this.highlightAndFindWithNeedle(false, function(needle) {
-            return needle + s;
+            if (!isRegExp(needle))
+              return needle + s;
+            var reObj = regExpToObject(needle);
+            reObj.expression += s;
+            return objectToRegExp(reObj);
         });
     }
 
     this.removeChar = function(c) {
         return this.highlightAndFindWithNeedle(false, function(needle) {
-            return needle.length > 0 ? needle.substring(0, needle.length-1) : needle;
+            if (!isRegExp(needle))
+              return needle.substring(0, needle.length-1);
+            var reObj = regExpToObject(needle);
+            reObj.expression = reObj.expression.substring(0, reObj.expression.length-1);
+            return objectToRegExp(reObj);
         });
     }
 
@@ -189,6 +227,18 @@ oop.inherits(IncrementalSearch, Search);
         this.addString(text);
     }
 
+    this.convertNeedleToRegExp = function() {
+        return this.highlightAndFindWithNeedle(false, function(needle) {
+            return isRegExp(needle) ? needle : stringToRegExp(needle, 'ig');
+        });
+    }
+
+    this.convertNeedleToString = function() {
+        return this.highlightAndFindWithNeedle(false, function(needle) {
+            return isRegExp(needle) ? regExpToObject(needle).expression : needle;
+        });
+    }
+
     this.statusMessage = function(found) {
         var options = this.$options, msg = '';
         msg += options.backwards ? 'reverse-' : '';

lib/ace/incremental_search_test.js

@@ -35,10 +35,12 @@ if (typeof process !== "undefined") {
 define(function(require, exports, module) {
 "use strict";
 
+var config = require("./config");
 var EditSession = require("./edit_session").EditSession;
 var Editor = require("./editor").Editor;
 var MockRenderer = require("./test/mockrenderer").MockRenderer;
 var Range = require("./range").Range;
+var MultiSelect = require("./multi_select").MultiSelect;
 var assert = require("./test/assertions");
 var IncrementalSearch = require("./incremental_search").IncrementalSearch;
 
@@ -69,6 +71,7 @@ module.exports = {
     setUp: function() {
         var session = new EditSession(["abc123", "xyz124"]);
         editor = new Editor(new MockRenderer(), session);
+        new MultiSelect(editor);
         iSearch = new IncrementalSearch();
     },
 
@@ -190,13 +193,17 @@ module.exports = {
         testRanges("Range: [0/0] -> [0/5]", [editor.getSelectionRange()], "sel range");
     },
 
-    "test: extend selection in emacs mark mode" : function() {
-        var emacs = require('./keyboard/emacs');
-        editor.keyBinding.addKeyboardHandler(emacs.handler);
-        emacs.handler.commands.setMark.exec(editor);
-        iSearch.activate(editor);
-        iSearch.addString('1'); iSearch.addString('2');;
-        testRanges("Range: [0/0] -> [0/5]", [editor.getSelectionRange()], "sel range");
+    "test: extend selection in emacs mark mode" : function(next) {
+        config.loadModule("ace/keyboard/emacs", function(emacs) {
+            // var emacs = require('./keyboard/emacs');
+            editor.keyBinding.addKeyboardHandler(emacs.handler);
+            emacs.handler.commands.setMark.exec(editor);
+            iSearch.activate(editor);
+            iSearch.addString('1'); iSearch.addString('2');
+        
+            testRanges("Range: [0/0] -> [0/5]", [editor.getSelectionRange()], "sel range");
+            next();
+        });
     }
 
 };