Add syntax files from upstream vim repository

syntax/limits.vim

@@ -0,0 +1,48 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'vim') == -1
+  
+" Vim syntax file
+" Language:             limits(5) configuration file
+" Previous Maintainer:  Nikolai Weibull <now@bitwi.se>
+" Latest Revision:      2006-04-19
+
+if exists("b:current_syntax")
+  finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+syn keyword limitsTodo    contained TODO FIXME XXX NOTE
+
+syn region  limitsComment display oneline start='^\s*#' end='$'
+                          \ contains=limitsTodo,@Spell
+
+syn match   limitsBegin   display '^'
+                          \ nextgroup=limitsUser,limitsDefault,limitsComment
+                          \ skipwhite
+
+syn match   limitsUser    contained '[^ \t#*]\+'
+                          \ nextgroup=limitsLimit,limitsDeLimit skipwhite
+
+syn match   limitsDefault contained '*'
+                          \ nextgroup=limitsLimit,limitsDeLimit skipwhite
+
+syn match   limitsLimit   contained '[ACDFMNRSTUKLP]' nextgroup=limitsNumber
+syn match   limitsDeLimit contained '-'
+
+syn match   limitsNumber  contained '\d\+\>' nextgroup=limitsLimit skipwhite
+
+hi def link limitsTodo    Todo
+hi def link limitsComment Comment
+hi def link limitsUser    Keyword
+hi def link limitsDefault Macro
+hi def link limitsLimit   Identifier
+hi def link limitsDeLimit Special
+hi def link limitsNumber  Number
+
+let b:current_syntax = "limits"
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+endif