Mercurial > genshi > mirror
comparison genshi/template/directives.py @ 351:0cc031745884 trunk
The `py:content`, `py:replace`, and `py:strip=""` directives are now expanded when the template is loaded (as opposed to when it's rendered).
| author | cmlenz |
|---|---|
| date | Fri, 10 Nov 2006 23:32:24 +0000 |
| parents | 2aa7ca37ae6a |
| children | fe40d34fb71d |
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| 346:96882a191686 | 351:0cc031745884 |
|---|---|
| 112 <li>Bye</li> | 112 <li>Bye</li> |
| 113 </ul> | 113 </ul> |
| 114 """ | 114 """ |
| 115 __slots__ = [] | 115 __slots__ = [] |
| 116 | 116 |
| 117 def __call__(self, stream, ctxt, directives): | 117 def prepare(self, directives, stream): |
| 118 def _generate(): | 118 directives.remove(self) |
| 119 yield stream.next() | 119 return [stream[0], (EXPR, self.expr, (None, -1, --1)), stream[-1]] |
| 120 yield EXPR, self.expr, (None, -1, -1) | |
| 121 event = stream.next() | |
| 122 for next in stream: | |
| 123 event = next | |
| 124 yield event | |
| 125 | |
| 126 return _apply_directives(_generate(), ctxt, directives) | |
| 127 | 120 |
| 128 | 121 |
| 129 class DefDirective(Directive): | 122 class DefDirective(Directive): |
| 130 """Implementation of the `py:def` template directive. | 123 """Implementation of the `py:def` template directive. |
| 131 | 124 |
| 365 Bye | 358 Bye |
| 366 </div> | 359 </div> |
| 367 """ | 360 """ |
| 368 __slots__ = [] | 361 __slots__ = [] |
| 369 | 362 |
| 370 def __call__(self, stream, ctxt, directives): | 363 def prepare(self, directives, stream): |
| 371 yield EXPR, self.expr, (None, -1, -1) | 364 directives.remove(self) |
| 365 return [(EXPR, self.expr, (None, -1, -1))] | |
| 372 | 366 |
| 373 | 367 |
| 374 class StripDirective(Directive): | 368 class StripDirective(Directive): |
| 375 """Implementation of the `py:strip` template directive. | 369 """Implementation of the `py:strip` template directive. |
| 376 | 370 |
| 404 """ | 398 """ |
| 405 __slots__ = [] | 399 __slots__ = [] |
| 406 | 400 |
| 407 def __call__(self, stream, ctxt, directives): | 401 def __call__(self, stream, ctxt, directives): |
| 408 def _generate(): | 402 def _generate(): |
| 409 if self.expr: | 403 if self.expr.evaluate(ctxt): |
| 410 strip = self.expr.evaluate(ctxt) | |
| 411 else: | |
| 412 strip = True | |
| 413 if strip: | |
| 414 stream.next() # skip start tag | 404 stream.next() # skip start tag |
| 415 previous = stream.next() | 405 previous = stream.next() |
| 416 for event in stream: | 406 for event in stream: |
| 417 yield previous | 407 yield previous |
| 418 previous = event | 408 previous = event |
| 419 else: | 409 else: |
| 420 for event in stream: | 410 for event in stream: |
| 421 yield event | 411 yield event |
| 422 | |
| 423 return _apply_directives(_generate(), ctxt, directives) | 412 return _apply_directives(_generate(), ctxt, directives) |
| 413 | |
| 414 def prepare(self, directives, stream): | |
| 415 if not self.expr: | |
| 416 directives.remove(self) | |
| 417 return stream[1:-1] | |
| 418 return stream | |
| 424 | 419 |
| 425 | 420 |
| 426 class ChooseDirective(Directive): | 421 class ChooseDirective(Directive): |
| 427 """Implementation of the `py:choose` directive for conditionally selecting | 422 """Implementation of the `py:choose` directive for conditionally selecting |
| 428 one of several body elements to display. | 423 one of several body elements to display. |