Mercurial > hg
annotate mercurial/strutil.py @ 24283:ef22cfff7052
transaction: add a validation stage
The 'transaction' object can now be fed a 'validator' function. This function
will be run right before the transaction is closed to validate its content. The
target usage is hooks. The validation function is expected to raise an exception
when it wants to abort the transaction.
This only introduce the idea with a default no-op validator. Actual usage is in
the next changeset.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Mon, 09 Mar 2015 22:43:36 -0700 |
parents | 25e572394f5c |
children | b723f05ec49b |
rev | line source |
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2953 | 1 # strutil.py - string utilities for Mercurial |
2 # | |
3 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> | |
4 # | |
8225
46293a0c7e9f
updated license to be explicit about GPL version 2
Martin Geisler <mg@lazybytes.net>
parents:
8155
diff
changeset
|
5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
2953 | 7 |
8 def findall(haystack, needle, start=0, end=None): | |
9 if end is None: | |
10 end = len(haystack) | |
11 if end < 0: | |
12 end += len(haystack) | |
13 if start < 0: | |
14 start += len(haystack) | |
15 while start < end: | |
16 c = haystack.find(needle, start, end) | |
17 if c == -1: | |
18 break | |
19 yield c | |
20 start = c + 1 | |
21 | |
22 def rfindall(haystack, needle, start=0, end=None): | |
23 if end is None: | |
24 end = len(haystack) | |
25 if end < 0: | |
26 end += len(haystack) | |
27 if start < 0: | |
28 start += len(haystack) | |
29 while end >= 0: | |
30 c = haystack.rfind(needle, start, end) | |
31 if c == -1: | |
32 break | |
33 yield c | |
34 end = c - 1 |