view mercurial/strutil.py @ 24841:45bd336e3991 stable

revert: accept just -I/-X without paths or -a/-i (issue4592)

'hg revert -I foo' currently fails with

  abort: no files or directories specified
  (use --all to revert all files, or 'hg update 1' to update)

It doesn't seem intentional that -I/-X without other paths or
--all/--interactive should fail, and it doesn't seem that harmful to
allow it either, so let's just do that.

# 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