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" Vim syntax file
" Language: eRuby
" Maintainer: Tim Pope <vimNOSPAM@tpope.org>
" URL: https://github.com/vim-ruby/vim-ruby
" Release Coordinator: Doug Kearns <dougkearns@gmail.com>
" Last Change: 2018 Jul 04
if &syntax !~# '\<eruby\>' || get(b:, 'current_syntax') =~# '\<eruby\>'
finish
endif
if !exists("main_syntax")
let main_syntax = 'eruby'
endif
if !exists("g:eruby_default_subtype")
let g:eruby_default_subtype = "html"
endif
if &filetype =~ '^eruby\.'
let b:eruby_subtype = matchstr(&filetype,'^eruby\.\zs\w\+')
elseif &filetype =~ '^.*\.eruby\>'
let b:eruby_subtype = matchstr(&filetype,'^.\{-\}\ze\.eruby\>')
elseif !exists("b:eruby_subtype") && main_syntax == 'eruby'
let s:lines = getline(1)."\n".getline(2)."\n".getline(3)."\n".getline(4)."\n".getline(5)."\n".getline("$")
let b:eruby_subtype = matchstr(s:lines,'eruby_subtype=\zs\w\+')
if b:eruby_subtype == ''
let b:eruby_subtype = matchstr(substitute(expand("%:t"),'\c\%(\.erb\|\.eruby\|\.erubis\|\.example\)\+$','',''),'\.\zs\w\+\%(\ze+\w\+\)\=$')
endif
if b:eruby_subtype == 'rhtml'
let b:eruby_subtype = 'html'
elseif b:eruby_subtype == 'rb'
let b:eruby_subtype = 'ruby'
elseif b:eruby_subtype == 'yml'
let b:eruby_subtype = 'yaml'
elseif b:eruby_subtype == 'js'
let b:eruby_subtype = 'javascript'
elseif b:eruby_subtype == 'txt'
" Conventional; not a real file type
let b:eruby_subtype = 'text'
elseif b:eruby_subtype == ''
let b:eruby_subtype = g:eruby_default_subtype
endif
endif
if !exists("b:eruby_nest_level")
if &syntax =~# '\<eruby\.eruby\>'
let b:eruby_nest_level = strlen(substitute(substitute(&filetype,'\C\<eruby\>','@','g'),'[^@]','','g'))
else
let b:eruby_nest_level = strlen(substitute(substitute(substitute(expand("%:t"),'@','','g'),'\c\.\%(erb\|rhtml\)\>','@','g'),'[^@]','','g'))
endif
endif
if !b:eruby_nest_level
let b:eruby_nest_level = 1
endif
if get(b:, 'eruby_subtype', '') !~# '^\%(eruby\)\=$' && &syntax =~# '^eruby\>'
exe "runtime! syntax/".b:eruby_subtype.".vim"
endif
unlet! b:current_syntax
syn include @rubyTop syntax/ruby.vim
syn cluster erubyRegions contains=erubyOneLiner,erubyBlock,erubyExpression,erubyComment
exe 'syn region erubyOneLiner matchgroup=erubyDelimiter start="^%\{1,'.b:eruby_nest_level.'\}%\@!" end="$" contains=@rubyTop containedin=ALLBUT,@erubyRegions keepend oneline'
exe 'syn region erubyBlock matchgroup=erubyDelimiter start="<%\{1,'.b:eruby_nest_level.'\}%\@!-\=" end="[=-]\=%\@<!%\{1,'.b:eruby_nest_level.'\}>" contains=@rubyTop containedin=ALLBUT,@erubyRegions keepend'
exe 'syn region erubyExpression matchgroup=erubyDelimiter start="<%\{1,'.b:eruby_nest_level.'\}=\{1,4}" end="[=-]\=%\@<!%\{1,'.b:eruby_nest_level.'\}>" contains=@rubyTop containedin=ALLBUT,@erubyRegions keepend'
exe 'syn region erubyComment matchgroup=erubyDelimiter start="<%\{1,'.b:eruby_nest_level.'\}-\=#" end="[=-]\=%\@<!%\{1,'.b:eruby_nest_level.'\}>" contains=rubyTodo,@Spell containedin=ALLBUT,@erubyRegions keepend'
" Define the default highlighting.
hi def link erubyDelimiter PreProc
hi def link erubyComment Comment
let b:current_syntax = matchstr(&syntax, '^.*\<eruby\>')
if main_syntax == 'eruby'
unlet main_syntax
endif
" vim: nowrap sw=2 sts=2 ts=8:
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