1 files changed, 79 insertions, 0 deletions
diff --git a/runtime/syntax/eruby.vim b/runtime/syntax/eruby.vim
new file mode 100644
index 0000000..3d1bf71
--- /dev/null
+++ b/runtime/syntax/eruby.vim
@@ -0,0 +1,79 @@
+" 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:		2022 Mar 18
+
+if exists("b:current_syntax")
+  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 !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 exists("b:eruby_subtype") && b:eruby_subtype != '' && b:eruby_subtype !=? 'eruby'
+  exe "runtime! syntax/".b:eruby_subtype.".vim"
+  unlet! b:current_syntax
+endif
+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 = 'eruby'
+
+if main_syntax == 'eruby'
+  unlet main_syntax
+endif
+
+" vim: nowrap sw=2 sts=2 ts=8: