view mercurial/strutil.py @ 12658:97d7ee445e98

mq: silence spurious output.

When using a versioned patch repository, you would get a spurious
warning when deleting and adding the same patch.

Before:

  $ hg qdelete --keep 3.diff
  $ hg qimport --existing 3.diff
  adding 3.diff to series file
  3.diff already tracked!

After:

  $ hg qdelete --keep 3.diff
  $ hg qimport --existing 3.diff
  adding 3.diff to series file

# strutil.py - string utilities for Mercurial
#
# Copyright 2006 Vadim Gelfer <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

def findall(haystack, needle, start=0, end=None):
    if end is None:
        end = len(haystack)
    if end < 0:
        end += len(haystack)
    if start < 0:
        start += len(haystack)
    while start < end:
        c = haystack.find(needle, start, end)
        if c == -1:
            break
        yield c
        start = c + 1

def rfindall(haystack, needle, start=0, end=None):
    if end is None:
        end = len(haystack)
    if end < 0:
        end += len(haystack)
    if start < 0:
        start += len(haystack)
    while end >= 0:
        c = haystack.rfind(needle, start, end)
        if c == -1:
            break
        yield c
        end = c - 1