Mercurial > genshi > genshi-test
comparison markup/eval.py @ 86:5d98c4259d68
Accidentially left some doctests disabled.
| author | cmlenz |
|---|---|
| date | Mon, 17 Jul 2006 09:01:08 +0000 |
| parents | c82c002d4c32 |
| children | c6f07b7cd3ea |
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| 85:db8f2958c670 | 86:5d98c4259d68 |
|---|---|
| 40 Similar to e.g. Javascript, expressions in templates can use the dot | 40 Similar to e.g. Javascript, expressions in templates can use the dot |
| 41 notation for attribute access to access items in mappings: | 41 notation for attribute access to access items in mappings: |
| 42 | 42 |
| 43 >>> Expression('dict.some').evaluate(data) | 43 >>> Expression('dict.some').evaluate(data) |
| 44 'thing' | 44 'thing' |
| 45 """ | 45 |
| 46 """ | |
| 47 This also works the other way around: item access can be used to access | 46 This also works the other way around: item access can be used to access |
| 48 any object attribute (meaning there's no use for `getattr()` in templates): | 47 any object attribute (meaning there's no use for `getattr()` in templates): |
| 49 | 48 |
| 50 >>> class MyClass(object): | 49 >>> class MyClass(object): |
| 51 ... myattr = 'Bar' | 50 ... myattr = 'Bar' |
| 73 | 72 |
| 74 @param source: the expression as string | 73 @param source: the expression as string |
| 75 """ | 74 """ |
| 76 self.source = source | 75 self.source = source |
| 77 | 76 |
| 78 tree = parse(self.source, 'eval') | 77 ast = parse(self.source, 'eval') |
| 79 if isinstance(filename, unicode): | 78 if isinstance(filename, unicode): |
| 80 # pycodegen doesn't like unicode in the filename | 79 # pycodegen doesn't like unicode in the filename |
| 81 filename = filename.encode('utf-8', 'replace') | 80 filename = filename.encode('utf-8', 'replace') |
| 82 tree.filename = filename or '<string>' | 81 ast.filename = filename or '<string>' |
| 83 gen = TemplateExpressionCodeGenerator(tree) | 82 gen = TemplateExpressionCodeGenerator(ast) |
| 84 if lineno >= 0: | 83 if lineno >= 0: |
| 85 gen.emit('SET_LINENO', lineno) | 84 gen.emit('SET_LINENO', lineno) |
| 86 self.code = gen.getCode() | 85 self.code = gen.getCode() |
| 87 | 86 |
| 88 def __repr__(self): | 87 def __repr__(self): |