" Vim syntax file
" Language:	Vim help file
" Maintainer:	Bram Moolenaar (Bram@vim.org)
" Last Change:	2005 Sep 01

" Quit when a (custom) syntax file was already loaded
if exists("b:current_syntax")
  finish
endif

syn match helpHeadline		"^[A-Z ]\+[ ]\+\*"me=e-1
syn match helpSectionDelim	"^=\{3,}.*===$"
syn match helpSectionDelim	"^-\{3,}.*--$"
syn region helpExample		matchgroup=helpIgnore start=" >$" start="^>$" end="^[^ \t]"me=e-1 end="^<"
if has("ebcdic")
  syn match helpHyperTextJump	"\\\@<!|[^"*|]\+|"
  syn match helpHyperTextEntry	"\*[^"*|]\+\*\s"he=e-1
  syn match helpHyperTextEntry	"\*[^"*|]\+\*$"
else
  syn match helpHyperTextJump	"\\\@<!|[#-)!+-~]\+|"
  syn match helpHyperTextEntry	"\*[#-)!+-~]\+\*\s"he=e-1
  syn match helpHyperTextEntry	"\*[#-)!+-~]\+\*$"
endif
syn match helpNormal		"|.*====*|"
syn match helpNormal		":|vim:|"	" for :help modeline
syn match helpVim		"Vim version [0-9.a-z]\+"
syn match helpVim		"VIM REFERENCE.*"
syn match helpOption		"'[a-z]\{2,\}'"
syn match helpOption		"'t_..'"
syn match helpHeader		"\s*\zs.\{-}\ze\s\=\~$" nextgroup=helpIgnore
syn match helpIgnore		"." contained
syn keyword helpNote		note Note NOTE note: Note: NOTE: Notes Notes:
syn match helpSpecial		"\<N\>"
syn match helpSpecial		"\<N\.$"me=e-1
syn match helpSpecial		"\<N\.\s"me=e-2
syn match helpSpecial		"(N\>"ms=s+1
syn match helpSpecial		"\[N]"
" avoid highlighting N  N in help.txt
syn match helpSpecial		"N  N"he=s+1
syn match helpSpecial		"Nth"me=e-2
syn match helpSpecial		"N-1"me=e-2
syn match helpSpecial		"{[-a-zA-Z0-9'":%#=[\]<>.,]\+}"
syn match helpSpecial		"{[-a-zA-Z0-9'"*+/:%#=[\]<>.,]\+}"
syn match helpSpecial		"\s\[[-a-z^A-Z0-9_]\{2,}]"ms=s+1
syn match helpSpecial		"<[-a-zA-Z0-9_]\+>"
syn match helpSpecial		"<[SCM]-.>"
syn match helpNormal		"<---*>"
syn match helpSpecial		"\[range]"
syn match helpSpecial		"\[line]"
syn match helpSpecial		"\[count]"
syn match helpSpecial		"\[offset]"
syn match helpSpecial		"\[cmd]"
syn match helpSpecial		"\[num]"
syn match helpSpecial		"\[+num]"
syn match helpSpecial		"\[-num]"
syn match helpSpecial		"\[+cmd]"
syn match helpSpecial		"\[++opt]"
syn match helpSpecial		"\[arg]"
syn match helpSpecial		"\[arguments]"
syn match helpSpecial		"\[ident]"
syn match helpSpecial		"\[addr]"
syn match helpSpecial		"\[group]"
syn match helpSpecial		"CTRL-."
syn match helpSpecial		"CTRL-Break"
syn match helpSpecial		"CTRL-PageUp"
syn match helpSpecial		"CTRL-PageDown"
syn match helpSpecial		"CTRL-Insert"
syn match helpSpecial		"CTRL-Del"
syn match helpSpecial		"CTRL-{char}"
syn region helpNotVi		start="{Vi[: ]" start="{not" start="{only" end="}" contains=helpLeadBlank,helpHyperTextJump
syn match helpLeadBlank		"^\s\+" contained

" Highlight group items in their own color.
syn match helpComment		"\t[* ]Comment\t\+[a-z].*"
syn match helpConstant		"\t[* ]Constant\t\+[a-z].*"
syn match helpString		"\t[* ]String\t\+[a-z].*"
syn match helpCharacter		"\t[* ]Character\t\+[a-z].*"
syn match helpNumber		"\t[* ]Number\t\+[a-z].*"
syn match helpBoolean		"\t[* ]Boolean\t\+[a-z].*"
syn match helpFloat		"\t[* ]Float\t\+[a-z].*"
syn match helpIdentifier	"\t[* ]Identifier\t\+[a-z].*"
syn match helpFunction		"\t[* ]Function\t\+[a-z].*"
syn match helpStatement		"\t[* ]Statement\t\+[a-z].*"
syn match helpConditional	"\t[* ]Conditional\t\+[a-z].*"
syn match helpRepeat		"\t[* ]Repeat\t\+[a-z].*"
syn match helpLabel		"\t[* ]Label\t\+[a-z].*"
syn match helpOperator		"\t[* ]Operator\t\+["a-z].*"
syn match helpKeyword		"\t[* ]Keyword\t\+[a-z].*"
syn match helpException		"\t[* ]Exception\t\+[a-z].*"
syn match helpPreProc		"\t[* ]PreProc\t\+[a-z].*"
syn match helpInclude		"\t[* ]Include\t\+[a-z].*"
syn match helpDefine		"\t[* ]Define\t\+[a-z].*"
syn match helpMacro		"\t[* ]Macro\t\+[a-z].*"
syn match helpPreCondit		"\t[* ]PreCondit\t\+[a-z].*"
syn match helpType		"\t[* ]Type\t\+[a-z].*"
syn match helpStorageClass	"\t[* ]StorageClass\t\+[a-z].*"
syn match helpStructure		"\t[* ]Structure\t\+[a-z].*"
syn match helpTypedef		"\t[* ]Typedef\t\+[Aa-z].*"
syn match helpSpecial		"\t[* ]Special\t\+[a-z].*"
syn match helpSpecialChar	"\t[* ]SpecialChar\t\+[a-z].*"
syn match helpTag		"\t[* ]Tag\t\+[a-z].*"
syn match helpDelimiter		"\t[* ]Delimiter\t\+[a-z].*"
syn match helpSpecialComment	"\t[* ]SpecialComment\t\+[a-z].*"
syn match helpDebug		"\t[* ]Debug\t\+[a-z].*"
syn match helpUnderlined	"\t[* ]Underlined\t\+[a-z].*"
syn match helpError		"\t[* ]Error\t\+[a-z].*"
syn match helpTodo		"\t[* ]Todo\t\+[a-z].*"

syn match helpURL `\v<(((https?|ftp|gopher)://|(mailto|file|news):)[^' 	<>"]+|(www|web|w3)[a-z0-9_-]*\.[a-z0-9._-]+\.[^' 	<>"]+)[a-z0-9/]`

" Additionally load a language-specific syntax file "help_ab.vim".
let s:i = match(expand("%"), '\.\a\ax$')
if s:i > 0
  exe "runtime syntax/help_" . strpart(expand("%"), s:i + 1, 2) . ".vim"
endif

syn sync minlines=40


" Define the default highlighting.
" Only used when an item doesn't have highlighting yet
hi def link helpExampleStart	helpIgnore
hi def link helpIgnore		Ignore
hi def link helpHyperTextJump	Subtitle
hi def link helpHyperTextEntry	String
hi def link helpHeadline	Statement
hi def link helpHeader		PreProc
hi def link helpSectionDelim	PreProc
hi def link helpVim		Identifier
hi def link helpExample		Comment
hi def link helpOption		Type
hi def link helpNotVi		Special
hi def link helpSpecial		Special
hi def link helpNote		Todo
hi def link Subtitle		Identifier

hi def link helpComment		Comment
hi def link helpConstant	Constant
hi def link helpString		String
hi def link helpCharacter	Character
hi def link helpNumber		Number
hi def link helpBoolean		Boolean
hi def link helpFloat		Float
hi def link helpIdentifier	Identifier
hi def link helpFunction	Function
hi def link helpStatement	Statement
hi def link helpConditional	Conditional
hi def link helpRepeat		Repeat
hi def link helpLabel		Label
hi def link helpOperator	Operator
hi def link helpKeyword		Keyword
hi def link helpException	Exception
hi def link helpPreProc		PreProc
hi def link helpInclude		Include
hi def link helpDefine		Define
hi def link helpMacro		Macro
hi def link helpPreCondit	PreCondit
hi def link helpType		Type
hi def link helpStorageClass	StorageClass
hi def link helpStructure	Structure
hi def link helpTypedef		Typedef
hi def link helpSpecialChar	SpecialChar
hi def link helpTag		Tag
hi def link helpDelimiter	Delimiter
hi def link helpSpecialComment	SpecialComment
hi def link helpDebug		Debug
hi def link helpUnderlined	Underlined
hi def link helpError		Error
hi def link helpTodo		Todo
hi def link helpURL		String

let b:current_syntax = "help"

" vim: ts=8 sw=2
