Added cpplint.py output format for eclipse

cpplint.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2009 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.
@@ skipping 798 matching lines @@
     confidence: A number from 1-5 representing a confidence score for
       the error, with 5 meaning that we are certain of the problem,
       and 1 meaning that it could be a legitimate construct.
     message: The error message.
   """
   if _ShouldPrintError(category, confidence, linenum):
     _cpplint_state.IncrementErrorCount(category)
     if _cpplint_state.output_format == 'vs7':
       sys.stderr.write('%s(%s):  %s  [%s] [%d]\n' % (
           filename, linenum, message, category, confidence))
+    elif _cpplint_state.output_format == 'eclipse':
+      sys.stderr.write('%s:%s: warning: %s  [%s] [%d]\n' % (
+          filename, linenum, message, category, confidence))
     else:
       sys.stderr.write('%s:%s:  %s  [%s] [%d]\n' % (
           filename, linenum, message, category, confidence))
 
 
 # Matches standard C++ escape esequences per 2.13.2.3 of the C++ standard.
 _RE_PATTERN_CLEANSE_LINE_ESCAPES = re.compile(
     r'\\([abfnrtv?"\\\']|\d+|x[0-9a-fA-F]+)')
 # Matches strings.  Escape codes should already be removed by ESCAPES.
 _RE_PATTERN_CLEANSE_LINE_DOUBLE_QUOTES = re.compile(r'"[^"]*"')
@@ skipping 2478 matching lines @@
 
   verbosity = _VerboseLevel()
   output_format = _OutputFormat()
   filters = ''
   counting_style = ''
 
   for (opt, val) in opts:
     if opt == '--help':
       PrintUsage(None)
     elif opt == '--output':
-      if not val in ('emacs', 'vs7'):
-        PrintUsage('The only allowed output formats are emacs and vs7.')
+      if not val in ('emacs', 'vs7', 'eclipse'):
+        PrintUsage('The only allowed output formats are emacs, vs7 and eclipse.')
       output_format = val
     elif opt == '--verbose':
       verbosity = int(val)
     elif opt == '--filter':
       filters = val
       if not filters:
         PrintCategories()
     elif opt == '--counting':
       if val not in ('total', 'toplevel', 'detailed'):
         PrintUsage('Valid counting options are total, toplevel, and detailed')
@@ skipping 23 matching lines @@
   _cpplint_state.ResetErrorCounts()
   for filename in filenames:
     ProcessFile(filename, _cpplint_state.verbose_level)
   _cpplint_state.PrintErrorCounts()
 
   sys.exit(_cpplint_state.error_count > 0)
 
 
 if __name__ == '__main__':
   main()