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+" Vim syntax file
+" Language: X Pixmap v2
+" Maintainer: Steve Wall (hitched97@velnet.com)
+" Last Change: 2017 Feb 01
+" (Dominique Pelle added @Spell)
+" Version: 5.8
+" Jemma Nelson added termguicolors support
+"
+" Made from xpm.vim by Ronald Schild <rs@scutum.de>
+
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
+ finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+syn region xpm2PixelString start="^" end="$" contains=@xpm2Colors
+syn keyword xpm2Todo TODO FIXME XXX contained
+syn match xpm2Comment "\!.*$" contains=@Spell,xpm2Todo
+
+
+command -nargs=+ Hi hi def <args>
+
+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("$") " scanning all lines
+
+ let s = getline(i)
+ if match(s,"\!.*$") != -1
+ let s = matchstr(s, "^[^\!]*")
+ endif
+ 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 xpm2Values /' . s . '/'
+ endif
+ hi def link xpm2Values Statement
+
+ 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, '/\*^$.~[]')
+ let chars = escape(chars, '/\*^$.~[]')
+
+ " change whitespace to "\s\+"
+ let s = substitute(s, "[ \t][ \t]*", "\\\\s\\\\+", "g")
+ let chars = substitute(chars, "[ \t][ \t]*", "\\\\s\\\\+", "g")
+
+ " now create syntax items
+ " highlight the color string as normal string (no pixel string)
+ exe 'syn match xpm2Col'.n.'Def /'.s.'/ contains=xpm2Col'.n.'inDef'
+ exe 'hi def link xpm2Col'.n.'Def Constant'
+
+ " but highlight the first whitespace after chars in its color
+ exe 'syn match xpm2Col'.n.'inDef /^'.chars.'/hs=s+'.(cpp).' contained'
+ exe 'hi def link xpm2Col'.n.'inDef xpm2Color'.n
+
+ " remove the following whitespace from chars
+ let chars = substitute(chars, '\\s\\+$', '', '')
+
+ " and create the syntax item contained in the pixel strings
+ exe 'syn match xpm2Color'.n.' /'.chars.'/ contained'
+ exe 'syn cluster xpm2Colors add=xpm2Color'.n
+
+ " if no color or color = "None" show background
+ if color == "" || substitute(color, '.*', '\L&', '') == 'none'
+ exe 'Hi xpm2Color'.n.' guifg=bg guibg=NONE'
+ elseif color !~ "'"
+ exe 'Hi xpm2Color'.n." guifg='".color."' 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
+" The default highlighting.
+hi def link xpm2Type Type
+hi def link xpm2StorageClass StorageClass
+hi def link xpm2Todo Todo
+hi def link xpm2Comment Comment
+hi def link xpm2PixelString String
+
+delcommand Hi
+
+let b:current_syntax = "xpm2"
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+" vim: ts=8:sw=2:noet: