annotate contrib/vim/hgtest.vim @ 13026:53391819f195

check-code: catch Python 'is' comparing number or string literals

The Python 'is' operator compares object identity, so it should
definitely not be applied to string or number literals, which Python
implementations are free to represent with a temporary object.

This should catch the following kinds of bogus expressions (examples):

  x is 'foo'     x is not 'foo'
  x is "bar"     x is not "bar"
  x is 42        x is not 42
  x is -36       x is not -36

As originally proposed by Martin Geisler, amended with catching
negative numbers.

" Vim syntax file
" Language: Mercurial unified tests
" Author: Steve Losh ([e-mail])
"
" Add the following line to your ~/.vimrc to enable:
" au BufNewFile,BufRead *.t set filetype=hgtest
"
" If you want folding you'll need the following line as well:
" let hgtest_fold=1
"
" You might also want to set the starting foldlevel for hgtest files:
" autocmd Syntax hgtest setlocal foldlevel=1

if exists("b:current_syntax")
  finish
endif

syn include @Shell syntax/sh.vim

syn match hgtestComment /^[^ ].*$/
syn region hgtestOutput start=/^  [^$>]/ start=/^  $/ end=/\v.(\n\n*[^ ])\@=/me=s end=/^  [$>]/me=e-3 end=/^$/ fold containedin=hgtestBlock
syn match hgtestCommandStart /^  \$ / containedin=hgtestCommand
syn region hgtestCommand start=/^  \$ /hs=s+4,rs=s+4 end=/^  [^>]/me=e-3 end=/^  $/me=e-2 containedin=hgtestBlock contains=@Shell keepend
syn region hgtestBlock start=/^  /ms=e-2 end=/\v.(\n\n*[^ ])\@=/me=s end=/^$/me=e-1 fold keepend

hi link hgtestCommandStart Keyword
hi link hgtestComment Normal
hi link hgtestOutput Comment

if exists("hgtest_fold")
  setlocal foldmethod=syntax
endif

syn sync match hgtestSync grouphere NONE "^$"
syn sync maxlines=200

" It's okay to set tab settings here, because an indent of two spaces is specified
" by the file format.
setlocal tabstop=2 softtabstop=2 shiftwidth=2 expandtab

let b:current_syntax = "hgtest"