mercurial/strutil.py

hbisect: add two new revset descriptions: 'goods' and 'bads'

This patch adds two new revset descriptions:
 - 'goods': the list of topologicaly-good csets:
   - if good csets are topologically before bad csets, yields '::good'
   - else, yields 'good::'
 - and conversely for 'bads'

Signed-off-by: "Yann E. MORIN" <[e-mail]>

# 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