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+" Vim syntax file
+" Language: X Pixmap
+" Maintainer: Ronald Schild <rs@scutum.de>
+" Last Change: 2001 May 09
+" Version: 5.4n.1
+
+" For version 5.x: Clear all syntax items
+" For version 6.x: Quit when a syntax file was already loaded
+if version < 600
+ syntax clear
+elseif exists("b:current_syntax")
+ finish
+endif
+
+syn keyword xpmType char
+syn keyword xpmStorageClass static
+syn keyword xpmTodo TODO FIXME XXX contained
+syn region xpmComment start="/\*" end="\*/" contains=xpmTodo
+syn region xpmPixelString start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=@xpmColors
+
+if has("gui_running")
+
+let color = ""
+let chars = ""
+let colors = 0
+let cpp = 0
+let n = 0
+let i = 1
+
+while i <= line("$") " scanning all lines
+
+ let s = matchstr(getline(i), '".\{-1,}"')
+ if s != "" " does line contain a string?
+
+ if n == 0 " first string is the Values string
+
+ " get the 3rd value: colors = number of colors
+ let colors = substitute(s, '"\s*\d\+\s\+\d\+\s\+\(\d\+\).*"', '\1', '')
+ " get the 4th value: cpp = number of character per pixel
+ let cpp = substitute(s, '"\s*\d\+\s\+\d\+\s\+\d\+\s\+\(\d\+\).*"', '\1', '')
+
+ " highlight the Values string as normal string (no pixel string)
+ exe 'syn match xpmValues /'.s.'/'
+ hi link xpmValues String
+
+ let n = 1 " n = color index
+
+ elseif n <= colors " string is a color specification
+
+ " get chars = <cpp> length string representing the pixels
+ " (first incl. the following whitespace)
+ let chars = substitute(s, '"\(.\{'.cpp.'}\s\).*"', '\1', '')
+
+ " now get color, first try 'c' key if any (color visual)
+ let color = substitute(s, '".*\sc\s\+\(.\{-}\)\s*\(\(g4\=\|[ms]\)\s.*\)*\s*"', '\1', '')
+ if color == s
+ " no 'c' key, try 'g' key (grayscale with more than 4 levels)
+ let color = substitute(s, '".*\sg\s\+\(.\{-}\)\s*\(\(g4\|[ms]\)\s.*\)*\s*"', '\1', '')
+ if color == s
+ " next try: 'g4' key (4-level grayscale)
+ let color = substitute(s, '".*\sg4\s\+\(.\{-}\)\s*\([ms]\s.*\)*\s*"', '\1', '')
+ if color == s
+ " finally try 'm' key (mono visual)
+ let color = substitute(s, '".*\sm\s\+\(.\{-}\)\s*\(s\s.*\)*\s*"', '\1', '')
+ if color == s
+ let color = ""
+ endif
+ endif
+ endif
+ endif
+
+ " Vim cannot handle RGB codes with more than 6 hex digits
+ if color =~ '#\x\{10,}$'
+ let color = substitute(color, '\(\x\x\)\x\x', '\1', 'g')
+ elseif color =~ '#\x\{7,}$'
+ let color = substitute(color, '\(\x\x\)\x', '\1', 'g')
+ " nor with 3 digits
+ elseif color =~ '#\x\{3}$'
+ let color = substitute(color, '\(\x\)\(\x\)\(\x\)', '0\10\20\3', '')
+ endif
+
+ " escape meta characters in patterns
+ let s = escape(s, '/\*^$.~[]')
+ let chars = escape(chars, '/\*^$.~[]')
+
+ " now create syntax items
+ " highlight the color string as normal string (no pixel string)
+ exe 'syn match xpmCol'.n.'Def /'.s.'/ contains=xpmCol'.n.'inDef'
+ exe 'hi link xpmCol'.n.'Def String'
+
+ " but highlight the first whitespace after chars in its color
+ exe 'syn match xpmCol'.n.'inDef /"'.chars.'/hs=s+'.(cpp+1).' contained'
+ exe 'hi link xpmCol'.n.'inDef xpmColor'.n
+
+ " remove the following whitespace from chars
+ let chars = substitute(chars, '.$', '', '')
+
+ " and create the syntax item contained in the pixel strings
+ exe 'syn match xpmColor'.n.' /'.chars.'/ contained'
+ exe 'syn cluster xpmColors add=xpmColor'.n
+
+ " if no color or color = "None" show background
+ if color == "" || substitute(color, '.*', '\L&', '') == 'none'
+ exe 'hi xpmColor'.n.' guifg=bg'
+ exe 'hi xpmColor'.n.' guibg=NONE'
+ else
+ exe 'hi xpmColor'.n." guifg='".color."'"
+ exe 'hi xpmColor'.n." guibg='".color."'"
+ endif
+ let n = n + 1
+ else
+ break " no more color string
+ endif
+ endif
+ let i = i + 1
+endwhile
+
+unlet color chars colors cpp n i s
+
+endif " has("gui_running")
+
+" Define the default highlighting.
+" For version 5.7 and earlier: only when not done already
+" For version 5.8 and later: only when an item doesn't have highlighting yet
+if version >= 508 || !exists("did_xpm_syntax_inits")
+ if version < 508
+ let did_xpm_syntax_inits = 1
+ command -nargs=+ HiLink hi link <args>
+ else
+ command -nargs=+ HiLink hi def link <args>
+ endif
+
+ HiLink xpmType Type
+ HiLink xpmStorageClass StorageClass
+ HiLink xpmTodo Todo
+ HiLink xpmComment Comment
+ HiLink xpmPixelString String
+
+ delcommand HiLink
+endif
+
+let b:current_syntax = "xpm"
+
+" vim: ts=8:sw=3:noet: