tests/test-mq-qgoto

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

echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH

hg init a
cd a
echo a > a
hg ci -Ama

hg qnew a.patch
echo a >> a
hg qrefresh

hg qnew b.patch
echo b > b
hg add b
hg qrefresh

hg qnew c.patch
echo c > c
hg add c
hg qrefresh

hg qgoto a.patch
hg qgoto c.patch
hg qgoto b.patch

echo
echo % Using index
hg qgoto 0
hg qgoto 2

echo
echo % No warnings when using index
hg qnew bug314159
echo d >> c
hg qrefresh
hg qnew bug141421
echo e >> c
hg qrefresh
hg qgoto 1
hg qgoto 3

echo
echo % Detect ambiguous non-index
hg qgoto 14

exit 0