encoding: add 'trim' to trim multi-byte characters at most specified columns
Newly added 'trim' is used to trim multi-byte characters at most
specified columns correctly: directly slicing byte sequence should be
replaced with 'encoding.trim', because the former may split at
intermediate multi-byte sequence.
Slicing unicode sequence ('uslice') and concatenation with ellipsis
('concat') are defined as function, to make enhancement in subsequent
patch easier.
# node.py - basic nodeid manipulation for mercurial
#
# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
import binascii
nullrev = -1
nullid = "\0" * 20
# This ugly style has a noticeable effect in manifest parsing
hex = binascii.hexlify
bin = binascii.unhexlify
def short(node):
return hex(node[:6])