Mercurial > genshi > genshi-test
comparison markup/template.py @ 192:cda3bdfc19ed
Expression evaluation now differentiates between undefined variables and variables that are defined but set to `None`.
| author | cmlenz |
|---|---|
| date | Wed, 23 Aug 2006 17:49:14 +0000 |
| parents | 929ef2913b87 |
| children | 76129a79458d |
comparison
equal
deleted
inserted
replaced
| 191:929ef2913b87 | 192:cda3bdfc19ed |
|---|---|
| 109 | 109 |
| 110 def __setitem__(self, key, value): | 110 def __setitem__(self, key, value): |
| 111 """Set a variable in the current scope.""" | 111 """Set a variable in the current scope.""" |
| 112 self.frames[0][key] = value | 112 self.frames[0][key] = value |
| 113 | 113 |
| 114 def get(self, key): | 114 def get(self, key, default=None): |
| 115 """Get a variable's value, starting at the current scope and going | 115 """Get a variable's value, starting at the current scope and going |
| 116 upward. | 116 upward. |
| 117 """ | 117 """ |
| 118 for frame in self.frames: | 118 for frame in self.frames: |
| 119 if key in frame: | 119 if key in frame: |
| 120 return frame[key] | 120 return frame[key] |
| 121 return default | |
| 121 __getitem__ = get | 122 __getitem__ = get |
| 122 | 123 |
| 123 def push(self, data): | 124 def push(self, data): |
| 124 """Push a new scope on the stack.""" | 125 """Push a new scope on the stack.""" |
| 125 | 126 |