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" Vim syntax file
" Language: X Pixmap
" Maintainer: Ronald Schild <rs@scutum.de>
" Last Change: 2008 May 28
" 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', '')
if cpp =~ '[^0-9]'
break " if cpp is not made of digits there must be something wrong
endif
" Highlight the Values string as normal string (no pixel string).
" Only when there is no slash, it would terminate the pattern.
if s !~ '/'
exe 'syn match xpmValues /' . s . '/'
endif
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'
elseif color !~ "'"
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:
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