view tests/test-branch-option @ 11297:d320e70442a5

replace Python standard textwrap by MBCS sensitive one for i18n text

Mercurial has problem around text wrapping/filling in MBCS encoding
environment, because standard 'textwrap' module of Python can not
treat it correctly. It splits byte sequence for one character into two
lines.

According to unicode specification, "east asian width" classifies
characters into:

   W(ide), N(arrow), F(ull-width), H(alf-width), A(mbiguous)


W/N/F/H can be always recognized as 2/1/2/1 bytes in byte sequence,
but 'A' can not. Size of 'A' depends on language in which it is used.

Unicode specification says:

   If the context(= language) cannot be established reliably they
   should be treated as narrow characters by default

but many of class 'A' characters are full-width, at least, in Japanese
environment.

So, this patch treats class 'A' characters as full-width always for
safety wrapping.

This patch focuses only on MBCS safe-ness, not on writing/printing
rule strict wrapping for each languages

MBCS sensitive textwrap class is originally implemented
by ITO Nobuaki <[e-mail]>.

#!/bin/sh

# test branch selection options
hg init branch
cd branch
hg branch a
echo a > foo
hg ci -d '0 0' -Ama
echo a2 > foo
hg ci -d '0 0' -ma2
hg up 0
hg branch c
echo c > foo
hg ci -d '0 0' -mc
cd ..
hg clone -r 0 branch branch2
cd branch2
hg up 0
hg branch b
echo b > foo
hg ci -d '0 0' -mb
hg up 0
hg branch -f b
echo b2 > foo
hg ci -d '0 0' -mb2

echo in rev c branch a
hg in -qr c ../branch#a
hg in -qr c -b a
echo out branch .
hg out -q ../branch#.
hg out -q -b .
echo clone branch b
cd ..
hg clone branch2#b branch3
hg -q -R branch3 heads b
hg -q -R branch3 parents
rm -rf branch3
echo clone rev a branch b
hg clone -r a branch2#b branch3
hg -q -R branch3 heads b
hg -q -R branch3 parents
rm -rf branch3