mercurial/strutil.py
author Matt Mackall <mpm@selenic.com>
Fri, 30 Sep 2011 14:12:48 -0500
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# strutil.py - string utilities for Mercurial
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#
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# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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def findall(haystack, needle, start=0, end=None):
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    if end is None:
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        end = len(haystack)
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    if end < 0:
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        end += len(haystack)
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    if start < 0:
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        start += len(haystack)
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    while start < end:
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        c = haystack.find(needle, start, end)
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        if c == -1:
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            break
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        yield c
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        start = c + 1
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def rfindall(haystack, needle, start=0, end=None):
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    if end is None:
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        end = len(haystack)
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    if end < 0:
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        end += len(haystack)
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    if start < 0:
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        start += len(haystack)
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    while end >= 0:
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        c = haystack.rfind(needle, start, end)
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        if c == -1:
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            break
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        yield c
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        end = c - 1