Mercurial > public > mercurial-scm > hg
comparison mercurial/templatefilters.py @ 49494:c96ed4029fda
templates: add filter to reverse list
The filter supports only lists because for lists, it?s straightforward to
implement. Reversing text doesn?t seem very useful and is hard to implement.
Reversing the bytes would break multi-bytes encodings. Reversing the code
points would break characters consisting of multiple code points. Reversing
graphemes is non-trivial without using a library not included in the standard
library.
| author | Manuel Jacob <me@manueljacob.de> |
|---|---|
| date | Thu, 15 Sep 2022 01:48:38 +0200 |
| parents | d44e3c45f0e4 |
| children | 046b9cce5850 |
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| 49493:4367c46a89ee | 49494:c96ed4029fda |
|---|---|
| 388 interpreting it as per RFC 5322. | 388 interpreting it as per RFC 5322. |
| 389 """ | 389 """ |
| 390 return stringutil.person(author) | 390 return stringutil.person(author) |
| 391 | 391 |
| 392 | 392 |
| 393 @templatefilter(b'reverse') | |
| 394 def reverse(list_): | |
| 395 """List. Reverses the order of list items.""" | |
| 396 if isinstance(list_, list): | |
| 397 return templateutil.hybridlist(list_[::-1], name=b'item') | |
| 398 raise error.ParseError(_(b'not reversible')) | |
| 399 | |
| 400 | |
| 393 @templatefilter(b'revescape', intype=bytes) | 401 @templatefilter(b'revescape', intype=bytes) |
| 394 def revescape(text): | 402 def revescape(text): |
| 395 """Any text. Escapes all "special" characters, except @. | 403 """Any text. Escapes all "special" characters, except @. |
| 396 Forward slashes are escaped twice to prevent web servers from prematurely | 404 Forward slashes are escaped twice to prevent web servers from prematurely |
| 397 unescaping them. For example, "@foo bar/baz" becomes "@foo%20bar%252Fbaz". | 405 unescaping them. For example, "@foo bar/baz" becomes "@foo%20bar%252Fbaz". |