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Editing: xpm.vim
" Vim syntax file " Language: X Pixmap " Maintainer: Ronald Schild <rs@scutum.de> " Last Change: 2017 Feb 01 " Version: 5.4n.1 " Jemma Nelson added termguicolors support " quit when a syntax file was already loaded if 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") || has("termguicolors") && &termguicolors 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") || has("termguicolors") && &termguicolors " Define the default highlighting. " Only when an item doesn't have highlighting yet hi def link xpmType Type hi def link xpmStorageClass StorageClass hi def link xpmTodo Todo hi def link xpmComment Comment hi def link xpmPixelString String let b:current_syntax = "xpm" " vim: ts=8:sw=3:noet:
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