Initial implementation of WebUI generator (WUG) toolkit.

components/wug/generator/util.py

+# Copyright 2015 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.
+
+import argparse
+import os.path
+import re
+
+def CreateArgumentParser():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('declaration', help='Path to declaration file.')
+  parser.add_argument('--root', default='.', help='Path to src/ dir.')
+  parser.add_argument('--destination',
+                      help='Root directory for generated files.')
+  return parser
+
+def ToUpperCamelCase(underscore_name):
+  return re.sub(r'(?:_|^)(.)', lambda m: m.group(1).upper(), underscore_name)
+
+def ToLowerCamelCase(underscore_name):
+  return re.sub(r'_(.)', lambda m: m.group(1).upper(), underscore_name)
+
+def PathToIncludeGuard(path):
+  return re.sub(r'[/.]', '_', path.upper()) + '_'
+
+def CreateDirIfNotExists(path):
+  if not os.path.isdir(path):
+    if os.path.exists(path):
+      raise Exception('%s exists and is not a directory.' % path)
+    os.makedirs(path)