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" SubX syntax file
" Language: SubX
" Maintainer: Kartik Agaram <mu@akkartik.com>
" URL: https://github.com/akkartik/mu
" License: public domain
"
" Copy this into your ftplugin directory, and add the following to your vimrc
" or to .vim/ftdetect/subx.vim:
" autocmd BufReadPost,BufNewFile *.subx set filetype=subx
let s:save_cpo = &cpo
set cpo&vim
" setlocal iskeyword=@,48-57,?,!,_,$,-
setlocal formatoptions-=t " allow long lines
setlocal formatoptions+=c " but comments should still wrap
setlocal iskeyword+=-,?
" blue tones
" comment colors for dark terminal: 14, 39, 27, 19
" comment colors for light terminal: 19, 27, 39, 6
"? syntax match subxH1Comment /# - .*/ | highlight subxH1Comment cterm=underline ctermfg=27
"? syntax match subxComment /#[^ ].*\|# [^.-].*\|# \?$/ | highlight subxComment ctermfg=27
"? syntax match subxS1Comment /# \..*/ | highlight subxS1Comment ctermfg=19
"? syntax match subxS2Comment /# \. \..*/ | highlight subxS2Comment ctermfg=245
" blue-green tones
syntax match subxH1Comment /# - .*/ | highlight subxH1Comment cterm=underline ctermfg=25
syntax match subxComment /#\( \.\| - \|? \)\@!.*/ | highlight subxComment ctermfg=25
syntax match subxS1Comment /# \..*/ | highlight subxS1Comment ctermfg=19
syntax match subxS2Comment /# \. \..*/ | highlight subxS2Comment ctermfg=245
" grey tones
"? syntax match subxH1Comment /# - .*/ | highlight subxH1Comment cterm=bold,underline
"? syntax match subxComment /#[^ ].*\|# [^.-].*\|# \?$/ | highlight subxComment cterm=bold ctermfg=236
"? hi Normal ctermfg=236
"? syntax match subxS1Comment /# \..*/ | highlight subxS1Comment cterm=bold ctermfg=242
"? syntax match subxS2Comment /# \. \..*/ | highlight subxS2Comment ctermfg=242
set comments-=:#
set comments+=n:#
syntax match subxCommentedCode "#? .*" | highlight link subxCommentedCode CommentedCode
let b:cmt_head = "#? "
" comment token
syntax match subxDelimiter / \. / | highlight link subxDelimiter Normal
syntax match subxString %"[^"]*"% | highlight link subxString Constant
"" definitions
" match globals but not registers like 'EAX'
" don't match capitalized words in metadata
" don't match inside strings
syntax match subxGlobal %\(/\)\@<!\<[A-Z][a-z0-9_-]*\>% | highlight link subxGlobal SpecialChar
" tweak the red color from the colorscheme just a tad to improve contrast
highlight SpecialChar ctermfg=160
" functions but not tests, globals or internal functions
syntax match subxFunction "^\(test_\)\@<![a-z][^ ]*\(:\)\@=" | highlight subxFunction cterm=underline ctermfg=130
" tests starting with 'test-'; dark:34 light:64
syntax match subxTest "^test-[^ ]*\(:\)\@=" | highlight subxTest ctermfg=64
" internal functions starting with '_'
syntax match subxMinorFunction "^_[^ ]*\(:\)\@=" | highlight subxMinorFunction ctermfg=95
" other internal labels starting with '$'
syntax match subxLabel "^\$[^ ]*\(:\)\@=" | highlight link subxLabel Constant
let &cpo = s:save_cpo
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