mirror of
https://github.com/neovim/neovim.git
synced 2025-10-26 12:27:24 +00:00
135 lines
4.8 KiB
VimL
135 lines
4.8 KiB
VimL
" Vim syntax file
|
|
" Language: Haskell with literate comments, Bird style,
|
|
" Markdown style, TeX style and plain text surrounding
|
|
" \begin{code} \end{code} blocks
|
|
" Maintainer: Haskell Cafe mailinglist <haskell-cafe@haskell.org>
|
|
" Original Author: Arthur van Leeuwen <arthurvl@cs.uu.nl>
|
|
" Last Change: 2020 Feb 25
|
|
" Version: 1.05
|
|
"
|
|
" Thanks to Ian Lynagh for thoughtful comments on initial versions and
|
|
" for the inspiration for writing this in the first place.
|
|
"
|
|
" This style guesses as to the type of markup used in a literate haskell
|
|
" file and will highlight (La)TeX markup if it finds any
|
|
" This behaviour can be overridden, both glabally and locally using
|
|
" the lhs_markup variable or b:lhs_markup variable respectively.
|
|
"
|
|
" lhs_markup must be set to either tex or none to indicate that
|
|
" you always want (La)TeX highlighting or no highlighting
|
|
" must not be set to let the highlighting be guessed
|
|
" b:lhs_markup must be set to eiterh tex or none to indicate that
|
|
" you want (La)TeX highlighting or no highlighting for
|
|
" this particular buffer
|
|
" must not be set to let the highlighting be guessed
|
|
"
|
|
"
|
|
" 2004 February 18: New version, based on Ian Lynagh's TeX guessing
|
|
" lhaskell.vim, cweb.vim, tex.vim, sh.vim and fortran.vim
|
|
" 2004 February 20: Cleaned up the guessing and overriding a bit
|
|
" 2004 February 23: Cleaned up syntax highlighting for \begin{code} and
|
|
" \end{code}, added some clarification to the attributions
|
|
" 2008 July 1: Removed % from guess list, as it totally breaks plain
|
|
" text markup guessing
|
|
" 2009 April 29: Fixed highlighting breakage in TeX mode,
|
|
" thanks to Kalman Noel
|
|
"
|
|
|
|
|
|
" quit when a syntax file was already loaded
|
|
if exists("b:current_syntax")
|
|
finish
|
|
endif
|
|
|
|
" First off, see if we can inherit a user preference for lhs_markup
|
|
if !exists("b:lhs_markup")
|
|
if exists("lhs_markup")
|
|
if lhs_markup =~ '\<\%(tex\|md\|none\)\>'
|
|
let b:lhs_markup = matchstr(lhs_markup,'\<\%(tex\|md\|none\)\>')
|
|
else
|
|
echohl WarningMsg | echo "Unknown value of lhs_markup" | echohl None
|
|
let b:lhs_markup = "unknown"
|
|
endif
|
|
else
|
|
let b:lhs_markup = "unknown"
|
|
endif
|
|
else
|
|
if b:lhs_markup !~ '\<\%(tex\|md\|none\)\>'
|
|
let b:lhs_markup = "unknown"
|
|
endif
|
|
endif
|
|
|
|
" Remember where the cursor is, and go to upperleft
|
|
let s:oldline=line(".")
|
|
let s:oldcolumn=col(".")
|
|
call cursor(1,1)
|
|
|
|
" If no user preference, scan buffer for our guess of the markup to
|
|
" highlight. We only differentiate between TeX and plain markup, where
|
|
" plain is not highlighted. The heuristic for finding TeX markup is if
|
|
" one of the following occurs anywhere in the file:
|
|
" - \documentclass
|
|
" - \begin{env} (for env != code)
|
|
" - \part, \chapter, \section, \subsection, \subsubsection, etc
|
|
if b:lhs_markup == "unknown"
|
|
if search('\\documentclass\|\\begin{\(code}\)\@!\|\\\(sub\)*section\|\\chapter|\\part','W') != 0
|
|
let b:lhs_markup = "tex"
|
|
elseif search('```haskell','W') != 0
|
|
let b:lhs_markup = "md"
|
|
else
|
|
let b:lhs_markup = "plain"
|
|
endif
|
|
endif
|
|
|
|
" If user wants us to highlight TeX syntax or guess thinks it's TeX, read it.
|
|
if b:lhs_markup == "tex"
|
|
runtime! syntax/tex.vim
|
|
unlet b:current_syntax
|
|
" Tex.vim removes "_" from 'iskeyword', but we need it for Haskell.
|
|
setlocal isk+=_
|
|
syntax cluster lhsTeXContainer contains=tex.*Zone,texAbstract
|
|
elseif b:lhs_markup == "md"
|
|
runtime! syntax/markdown.vim
|
|
unlet b:current_syntax
|
|
syntax cluster lhsTeXContainer contains=markdown.*
|
|
else
|
|
syntax cluster lhsTeXContainer contains=.*
|
|
endif
|
|
|
|
" Literate Haskell is Haskell in between text, so at least read Haskell
|
|
" highlighting
|
|
syntax include @haskellTop syntax/haskell.vim
|
|
|
|
syntax region lhsHaskellBirdTrack start="^>" end="\%(^[^>]\)\@=" contains=@haskellTop,lhsBirdTrack containedin=@lhsTeXContainer
|
|
syntax region lhsHaskellBeginEndBlock start="^\\begin{code}\s*$" matchgroup=NONE end="\%(^\\end{code}.*$\)\@=" contains=@haskellTop,beginCodeBegin containedin=@lhsTeXContainer
|
|
syntax region lhsHaskellMDBlock start="^```haskell$" matchgroup=NONE end="^```$" keepend contains=@haskellTop,lhsMarkdownCode containedin=@lhsTeXContainer
|
|
|
|
syntax match lhsBirdTrack "^>" contained
|
|
|
|
syntax match lhsMarkdownCode "^\(```haskell\|^```\)$" contained
|
|
|
|
syntax match beginCodeBegin "^\\begin" nextgroup=beginCodeCode contained
|
|
syntax region beginCodeCode matchgroup=texDelimiter start="{" end="}"
|
|
|
|
" Define the default highlighting.
|
|
" Only when an item doesn't have highlighting yet
|
|
|
|
hi def link lhsBirdTrack Comment
|
|
|
|
hi def link lhsMarkdownCode Comment
|
|
|
|
hi def link beginCodeBegin texCmdName
|
|
hi def link beginCodeCode texSection
|
|
|
|
|
|
" Restore cursor to original position, as it may have been disturbed
|
|
" by the searches in our guessing code
|
|
call cursor (s:oldline, s:oldcolumn)
|
|
|
|
unlet s:oldline
|
|
unlet s:oldcolumn
|
|
|
|
let b:current_syntax = "lhaskell"
|
|
|
|
" vim: ts=8
|