annotate tests/test-mq-qsave.t @ 24966:554d6fcc3c84

templater: strip single backslash before quotation mark in quoted template

db7463aa080f fixed the issue of double escapes, but it made the following
template fail with syntax error because of <\">. Strictly speaking, <\">
appears to be invalid in non-string part, but we are likely to escape <">
if surrounded by quotes, and we are used to write such templates by trial
and error.

  [templates]
  sl = "{tags % \"{ifeq(tag,'tip','',label('log.tag', ' {tag}'))}\"}"

So, for backward compatibility between 2.8.1 and 3.4, a single backslash
before quotation mark is stripped only in quoted template. We don't care
for <\"> in string literal in quoted template, which never worked as expected
before.

  template  result
  --------- ------------------------
  {\"\"}    parse error
  "{""}"    {""} -> <>
  "{\"\"}"  {""} -> <>
  {"\""}    {"\""} -> <">
  '{"\""}'  {"\""} -> <">
  "{"\""}"  parse error (don't care)

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

  $ hg init

  $ echo 'base' > base
  $ hg ci -Ambase
  adding base

  $ hg qnew -mmqbase mqbase

  $ hg qsave
  $ hg qrestore 2
  restoring status: hg patches saved state