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Diffstat (limited to 'runtime/syntax/xpm.vim')
| -rw-r--r-- | runtime/syntax/xpm.vim | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/runtime/syntax/xpm.vim b/runtime/syntax/xpm.vim new file mode 100644 index 0000000..be9f387 --- /dev/null +++ b/runtime/syntax/xpm.vim @@ -0,0 +1,141 @@ +" Vim syntax file +" Language: X Pixmap +" Maintainer: Ronald Schild <rs@scutum.de> +" Last Change: 2021 Oct 04 +" Version: 5.4n.1 +" Jemma Nelson added termguicolors support +" Dominique Pellé fixed spelling support + +" quit when a syntax file was already loaded +if exists("b:current_syntax") + finish +endif + +syn spell notoplevel + +syn keyword xpmType char +syn keyword xpmStorageClass static +syn keyword xpmTodo TODO FIXME XXX contained +syn region xpmComment start="/\*" end="\*/" contains=xpmTodo,@Spell +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: |