Move grit from DEPS into src.

tools/grit/grit/tool/toolbar_preprocess.py

Index: tools/grit/grit/tool/toolbar_preprocess.py
diff --git a/tools/grit/grit/tool/toolbar_preprocess.py b/tools/grit/grit/tool/toolbar_preprocess.py
new file mode 100755
index 0000000000000000000000000000000000000000..ff26f88640621cb0ca06eac064fe44342af0a40a
--- /dev/null
+++ b/tools/grit/grit/tool/toolbar_preprocess.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+''' Toolbar preprocessing code. Turns all IDS_COMMAND macros in the RC file
+into simpler constructs that can be understood by GRIT. Also deals with
+expansion of $lf; placeholders into the correct linefeed character.
+'''
+
+import preprocess_interface
+
+from grit import lazy_re
+
+class ToolbarPreProcessor(preprocess_interface.PreProcessor):
+  ''' Toolbar PreProcessing class.
+  '''
+
+  _IDS_COMMAND_MACRO = lazy_re.compile(
+      r'(.*IDS_COMMAND)\s*\(([a-zA-Z0-9_]*)\s*,\s*([a-zA-Z0-9_]*)\)(.*)')
+  _LINE_FEED_PH = lazy_re.compile(r'\$lf;')
+  _PH_COMMENT = lazy_re.compile(r'PHRWR')
+  _COMMENT = lazy_re.compile(r'^(\s*)//.*')
+
+
+  def Process(self, rctext, rcpath):
+    ''' Processes the data in rctext.
+    Args:
+      rctext: string containing the contents of the RC file being processed
+      rcpath: the path used to access the file.
+
+    Return:
+      The processed text.
+    '''
+
+    ret = ''
+    rclines = rctext.splitlines()
+    for line in rclines:
+
+      if self._LINE_FEED_PH.search(line):
+        # Replace "$lf;" placeholder comments by an empty line.
+        # this will not be put into the processed result
+        if self._PH_COMMENT.search(line):
+          mm = self._COMMENT.search(line)
+          if mm:
+            line = '%s//' % mm.group(1)
+
+        else:
+          # Replace $lf by the right linefeed character
+          line = self._LINE_FEED_PH.sub(r'\\n', line)
+
+      # Deal with IDS_COMMAND_MACRO stuff
+      mo = self._IDS_COMMAND_MACRO.search(line)
+      if mo:
+        line = '%s_%s_%s%s' % (mo.group(1), mo.group(2), mo.group(3), mo.group(4))
+
+      ret += (line + '\n')
+
+    return ret
+
+