view mercurial/strutil.py @ 8695:9a89253a32e6

heads: show closed heads only when --closed is passed

Add a --closed (-c) option to 'hg heads' to show all heads and change the
default behavior to refrain from showing fully closed branches.

Enhance 'hg heads <branch>' so that:

* default: displays normal & inactive heads, not closed heads
* --closed: displays normal, inactive & closed heads
* --active: displays only normal heads
* both --closed and --active: displays normal & closed heads only

# 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, incorporated herein by reference.

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