PYTHON   53

keywords.py

Guest on 2nd August 2021 03:31:43 PM

  1. #!/usr/bin/env python
  2. #
  3. # Copyright  Neal Norwitz
  4. # Portions Copyright  Google Inc.
  5. #
  6. # Licensed under the Apache License, Version 2.0 (the "License");
  7. # you may not use this file except in compliance with the License.
  8. # You may obtain a copy of the License at
  9. #
  10. #      http://www.apache.org/licenses/LICENSE-2.0
  11. #
  12. # Unless required by applicable law or agreed to in writing, software
  13. # distributed under the License is distributed on an "AS IS" BASIS,
  14. # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15. # See the License for the specific language governing permissions and
  16. # limitations under the License.
  17.  
  18. """C++ keywords and helper utilities for determining keywords."""
  19.  
  20. __author__ = 'nnorwitz@google.com (Neal Norwitz)'
  21.  
  22.  
  23. try:
  24.     # Python 3.x
  25.     import builtins
  26. except ImportError:
  27.     # Python 2.x
  28.     import __builtin__ as builtins
  29.  
  30.  
  31. if not hasattr(builtins, 'set'):
  32.     # Nominal support for Python 2.3.
  33.     from sets import Set as set
  34.  
  35.  
  36. TYPES = set('bool char int long short double float void wchar_t unsigned signed'.split())
  37. TYPE_MODIFIERS = set('auto register const inline extern static virtual volatile mutable'.split())
  38. ACCESS = set('public protected private friend'.split())
  39.  
  40. CASTS = set('static_cast const_cast dynamic_cast reinterpret_cast'.split())
  41.  
  42. OTHERS = set('true false asm class namespace using explicit this operator sizeof'.split())
  43. OTHER_TYPES = set('new delete typedef struct union enum typeid typename template'.split())
  44.  
  45. CONTROL = set('case switch default if else return goto'.split())
  46. EXCEPTION = set('try catch throw'.split())
  47. LOOP = set('while do for break continue'.split())
  48.  
  49. ALL = TYPES | TYPE_MODIFIERS | ACCESS | CASTS | OTHERS | OTHER_TYPES | CONTROL | EXCEPTION | LOOP
  50.  
  51.  
  52. def IsKeyword(token):
  53.     return token in ALL
  54.  
  55. def IsBuiltinType(token):
  56.     if token in ('virtual', 'inline'):
  57.         # These only apply to methods, they can't be types by themselves.
  58.         return False
  59.     return token in TYPES or token in TYPE_MODIFIERS

Raw Paste


Login or Register to edit or fork this paste. It's free.