view tests/test-issue672 @ 11988:8380ed691df8

util: add an interpolate() function to for replacing multiple values

util.interpolate can be used to replace multiple items in a string all at once
(and optionally apply a function to the replacement), without worrying about
recursing:

    >>> import util
    >>> s = '$foo, $spam'
    >>> util.interpolate(r'\$', { 'foo': 'bar', 'spam': 'eggs' }, s)
    'bar, eggs'
    >>> util.interpolate(r'\$', { 'foo': 'spam', 'spam': 'foo' }, s)
    'spam, foo'
    >>> util.interpolate(r'\$', { 'foo': 'spam', 'spam': 'foo' }, s, lambda s: s.upper())
    'SPAM, FOO'

The patch also changes filemerge.py to use this new function.

#!/bin/sh

# 0-2-4
#  \ \ \
#   1-3-5
#
# rename in #1, content change in #4.

hg init t
cd t

touch 1
touch 2
hg commit -Am init  # 0

hg rename 1 1a
hg commit -m rename # 1

hg co -C 0
echo unrelated >> 2
hg ci -m unrelated1 # 2

hg merge --debug 1
hg ci -m merge1 # 3

hg co -C 2
echo hello >> 1
hg ci -m unrelated2 # 4

hg co -C 3
hg merge -y --debug 4

hg co -C 4
hg merge -y --debug 3