forked from aniani/vim
81 lines
3.2 KiB
VimL
81 lines
3.2 KiB
VimL
|
" Vim syntax file
|
||
|
|
" Language: CWEB
|
||
|
|
" Maintainer: Andreas Scherer <andreas.scherer@pobox.com>
|
||
|
|
" Last Change: April 30, 2001
|
||
|
|
|
||
|
|
" Details of the CWEB language can be found in the article by Donald E. Knuth
|
||
|
|
" and Silvio Levy, "The CWEB System of Structured Documentation", included as
|
||
|
|
" file "cwebman.tex" in the standard CWEB distribution, available for
|
||
|
|
" anonymous ftp at ftp://labrea.stanford.edu/pub/cweb/.
|
||
|
|
|
||
|
|
" TODO: Section names and C/C++ comments should be treated as TeX material.
|
||
|
|
" TODO: The current version switches syntax highlighting off for section
|
||
|
|
" TODO: names, and leaves C/C++ comments as such. (On the other hand,
|
||
|
|
" TODO: switching to TeX mode in C/C++ comments might be colour overkill.)
|
||
|
|
|
||
|
|
" For version 5.x: Clear all syntax items
|
||
|
|
" For version 6.x: Quit when a syntax file was already loaded
|
||
|
|
if version < 600
|
||
|
|
syntax clear
|
||
|
|
elseif exists("b:current_syntax")
|
||
|
|
finish
|
||
|
|
endif
|
||
|
|
|
||
|
|
" For starters, read the TeX syntax; TeX syntax items are allowed at the top
|
||
|
|
" level in the CWEB syntax, e.g., in the preamble. In general, a CWEB source
|
||
|
|
" code can be seen as a normal TeX document with some C/C++ material
|
||
|
|
" interspersed in certain defined regions.
|
||
|
|
if version < 600
|
||
|
|
source <sfile>:p:h/tex.vim
|
||
|
|
else
|
||
|
|
runtime! syntax/tex.vim
|
||
|
|
unlet b:current_syntax
|
||
|
|
endif
|
||
|
|
|
||
|
|
" Read the C/C++ syntax too; C/C++ syntax items are treated as such in the
|
||
|
|
" C/C++ section of a CWEB chunk or in inner C/C++ context in "|...|" groups.
|
||
|
|
syntax include @webIncludedC <sfile>:p:h/cpp.vim
|
||
|
|
|
||
|
|
" Inner C/C++ context (ICC) should be quite simple as it's comprised of
|
||
|
|
" material in "|...|"; however the naive definition for this region would
|
||
|
|
" hickup at the innocious "\|" TeX macro. Note: For the time being we expect
|
||
|
|
" that an ICC begins either at the start of a line or after some white space.
|
||
|
|
syntax region webInnerCcontext start="\(^\|[ \t\~`(]\)|" end="|" contains=@webIncludedC,webSectionName,webRestrictedTeX,webIgnoredStuff
|
||
|
|
|
||
|
|
" Genuine C/C++ material. This syntactic region covers both the definition
|
||
|
|
" part and the C/C++ part of a CWEB section; it is ended by the TeX part of
|
||
|
|
" the next section.
|
||
|
|
syntax region webCpart start="@[dfscp<(]" end="@[ \*]" contains=@webIncludedC,webSectionName,webRestrictedTeX,webIgnoredStuff
|
||
|
|
|
||
|
|
" Section names contain C/C++ material only in inner context.
|
||
|
|
syntax region webSectionName start="@[<(]" end="@>" contains=webInnerCcontext contained
|
||
|
|
|
||
|
|
" The contents of "control texts" is not treated as TeX material, because in
|
||
|
|
" non-trivial cases this completely clobbers the syntax recognition. Instead,
|
||
|
|
" we highlight these elements as "strings".
|
||
|
|
syntax region webRestrictedTeX start="@[\^\.:t=q]" end="@>" oneline
|
||
|
|
|
||
|
|
" Double-@ means single-@, anywhere in the CWEB source. (This allows e-mail
|
||
|
|
" address <someone@@fsf.org> without going into C/C++ mode.)
|
||
|
|
syntax match webIgnoredStuff "@@"
|
||
|
|
|
||
|
|
" Define the default highlighting.
|
||
|
|
" For version 5.7 and earlier: only when not done already
|
||
|
|
" For version 5.8 and later: only when an item doesn't have highlighting yet
|
||
|
|
if version >= 508 || !exists("did_cweb_syntax_inits")
|
||
|
|
if version < 508
|
||
|
|
let did_cweb_syntax_inits = 1
|
||
|
|
command -nargs=+ HiLink hi link <args>
|
||
|
|
else
|
||
|
|
command -nargs=+ HiLink hi def link <args>
|
||
|
|
endif
|
||
|
|
|
||
|
|
HiLink webRestrictedTeX String
|
||
|
|
|
||
|
|
delcommand HiLink
|
||
|
|
endif
|
||
|
|
|
||
|
|
let b:current_syntax = "cweb"
|
||
|
|
|
||
|
|
" vim: ts=8
|