* Remove non-Open Source code from Douglas Crockford....

tools/js2c.py

 #!/usr/bin/env python
 #
 # Copyright 2006-2008 the V8 project authors. 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 34 matching lines @@
   return ", ".join(result)
 
 
 def RemoveCommentsAndTrailingWhitespace(lines):
   lines = re.sub(r'//.*\n', '\n', lines) # end-of-line comments
   lines = re.sub(re.compile(r'/\*.*?\*/', re.DOTALL), '', lines) # comments.
   lines = re.sub(r'\s+\n+', '\n', lines) # trailing whitespace
   return lines
 
 
-def CompressScript(lines, do_jsmin):
-  # If we're not expecting this code to be user visible, we can run it through
-  # a more aggressive minifier.
-  if do_jsmin:
-    return jsmin.jsmin(lines)
-
-  # Remove stuff from the source that we don't want to appear when
-  # people print the source code using Function.prototype.toString().
-  # Note that we could easily compress the scripts mode but don't
-  # since we want it to remain readable.
-  lines = RemoveCommentsAndTrailingWhitespace(lines)
-  return lines
-
-
 def ReadFile(filename):
   file = open(filename, "rt")
   try:
     lines = file.read()
   finally:
     file.close()
   return lines
 
 
 def ReadLines(filename):
@@ skipping 209 matching lines @@
   consts = {}
   macros = {}
   for s in source:
     if 'macros.py' == (os.path.split(str(s))[1]):
       (consts, macros) = ReadMacros(ReadLines(str(s)))
     else:
       modules.append(s)
 
   # Build source code lines
   source_lines = [ ]
+
+  minifier = jsmin.JavaScriptMinifier()
+
   source_lines_empty = []
   for module in modules:
     filename = str(module)
     delay = filename.endswith('-delay.js')
     lines = ReadFile(filename)
-    do_jsmin = lines.find('// jsminify this file, js2c: jsmin') != -1
     lines = ExpandConstants(lines, consts)
     lines = ExpandMacros(lines, macros)
     Validate(lines, filename)
-    lines = CompressScript(lines, do_jsmin)
+    lines = minifier.JSMinify(lines)
     data = ToCArray(lines)
     id = (os.path.split(filename)[1])[:-3]
     if delay: id = id[:-6]
     if delay:
       delay_ids.append((id, len(lines)))
     else:
       ids.append((id, len(lines)))
     source_lines.append(SOURCE_DECLARATION % { 'id': id, 'data': data })
     source_lines_empty.append(SOURCE_DECLARATION % { 'id': id, 'data': 0 })
 
@@ skipping 61 matching lines @@
 
 def main():
   natives = sys.argv[1]
   natives_empty = sys.argv[2]
   type = sys.argv[3]
   source_files = sys.argv[4:]
   JS2C(source_files, [natives, natives_empty], { 'TYPE': type })
 
 if __name__ == "__main__":
   main()