view mercurial/strutil.py @ 22532:0cf46b8298fe

revset: use `subset &` in `bisect`

This takes advantage of the `fullreposet` smartness.

revset #0: bisect(range)
0) wall 0.014007 comb 0.010000 user 0.010000 sys 0.000000 (best of 115)
1) wall 0.005556 comb 0.010000 user 0.010000 sys 0.000000 (best of 235)

# 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