xref: /vim-8.2.3635/runtime/syntax/xpm.vim (revision 0fa313a7)
1" Vim syntax file
2" Language:	X Pixmap
3" Maintainer:	Ronald Schild <[email protected]>
4" Last Change:	2001 May 09
5" Version:	5.4n.1
6
7" For version 5.x: Clear all syntax items
8" For version 6.x: Quit when a syntax file was already loaded
9if version < 600
10  syntax clear
11elseif exists("b:current_syntax")
12  finish
13endif
14
15syn keyword xpmType		char
16syn keyword xpmStorageClass	static
17syn keyword xpmTodo		TODO FIXME XXX  contained
18syn region  xpmComment		start="/\*"  end="\*/"  contains=xpmTodo
19syn region  xpmPixelString	start=+"+  skip=+\\\\\|\\"+  end=+"+  contains=@xpmColors
20
21if has("gui_running")
22
23let color  = ""
24let chars  = ""
25let colors = 0
26let cpp    = 0
27let n      = 0
28let i      = 1
29
30while i <= line("$")		" scanning all lines
31
32   let s = matchstr(getline(i), '".\{-1,}"')
33   if s != ""			" does line contain a string?
34
35      if n == 0			" first string is the Values string
36
37	 " get the 3rd value: colors = number of colors
38	 let colors = substitute(s, '"\s*\d\+\s\+\d\+\s\+\(\d\+\).*"', '\1', '')
39	 " get the 4th value: cpp = number of character per pixel
40	 let cpp = substitute(s, '"\s*\d\+\s\+\d\+\s\+\d\+\s\+\(\d\+\).*"', '\1', '')
41
42	 " highlight the Values string as normal string (no pixel string)
43	 exe 'syn match xpmValues /'.s.'/'
44	 hi link xpmValues String
45
46	 let n = 1		" n = color index
47
48      elseif n <= colors	" string is a color specification
49
50	 " get chars = <cpp> length string representing the pixels
51	 " (first incl. the following whitespace)
52	 let chars = substitute(s, '"\(.\{'.cpp.'}\s\).*"', '\1', '')
53
54	 " now get color, first try 'c' key if any (color visual)
55	 let color = substitute(s, '".*\sc\s\+\(.\{-}\)\s*\(\(g4\=\|[ms]\)\s.*\)*\s*"', '\1', '')
56	 if color == s
57	    " no 'c' key, try 'g' key (grayscale with more than 4 levels)
58	    let color = substitute(s, '".*\sg\s\+\(.\{-}\)\s*\(\(g4\|[ms]\)\s.*\)*\s*"', '\1', '')
59	    if color == s
60	       " next try: 'g4' key (4-level grayscale)
61	       let color = substitute(s, '".*\sg4\s\+\(.\{-}\)\s*\([ms]\s.*\)*\s*"', '\1', '')
62	       if color == s
63		  " finally try 'm' key (mono visual)
64		  let color = substitute(s, '".*\sm\s\+\(.\{-}\)\s*\(s\s.*\)*\s*"', '\1', '')
65		  if color == s
66		     let color = ""
67		  endif
68	       endif
69	    endif
70	 endif
71
72	 " Vim cannot handle RGB codes with more than 6 hex digits
73	 if color =~ '#\x\{10,}$'
74	    let color = substitute(color, '\(\x\x\)\x\x', '\1', 'g')
75	 elseif color =~ '#\x\{7,}$'
76	    let color = substitute(color, '\(\x\x\)\x', '\1', 'g')
77	 " nor with 3 digits
78	 elseif color =~ '#\x\{3}$'
79	    let color = substitute(color, '\(\x\)\(\x\)\(\x\)', '0\10\20\3', '')
80	 endif
81
82	 " escape meta characters in patterns
83	 let s = escape(s, '/\*^$.~[]')
84	 let chars = escape(chars, '/\*^$.~[]')
85
86	 " now create syntax items
87	 " highlight the color string as normal string (no pixel string)
88	 exe 'syn match xpmCol'.n.'Def /'.s.'/ contains=xpmCol'.n.'inDef'
89	 exe 'hi link xpmCol'.n.'Def String'
90
91	 " but highlight the first whitespace after chars in its color
92	 exe 'syn match xpmCol'.n.'inDef /"'.chars.'/hs=s+'.(cpp+1).' contained'
93	 exe 'hi link xpmCol'.n.'inDef xpmColor'.n
94
95	 " remove the following whitespace from chars
96	 let chars = substitute(chars, '.$', '', '')
97
98	 " and create the syntax item contained in the pixel strings
99	 exe 'syn match xpmColor'.n.' /'.chars.'/ contained'
100	 exe 'syn cluster xpmColors add=xpmColor'.n
101
102	 " if no color or color = "None" show background
103	 if color == ""  ||  substitute(color, '.*', '\L&', '') == 'none'
104	    exe 'hi xpmColor'.n.' guifg=bg'
105	    exe 'hi xpmColor'.n.' guibg=NONE'
106	 else
107	    exe 'hi xpmColor'.n." guifg='".color."'"
108	    exe 'hi xpmColor'.n." guibg='".color."'"
109	 endif
110	 let n = n + 1
111      else
112	 break		" no more color string
113      endif
114   endif
115   let i = i + 1
116endwhile
117
118unlet color chars colors cpp n i s
119
120endif		" has("gui_running")
121
122" Define the default highlighting.
123" For version 5.7 and earlier: only when not done already
124" For version 5.8 and later: only when an item doesn't have highlighting yet
125if version >= 508 || !exists("did_xpm_syntax_inits")
126  if version < 508
127    let did_xpm_syntax_inits = 1
128    command -nargs=+ HiLink hi link <args>
129  else
130    command -nargs=+ HiLink hi def link <args>
131  endif
132
133  HiLink xpmType		Type
134  HiLink xpmStorageClass	StorageClass
135  HiLink xpmTodo		Todo
136  HiLink xpmComment		Comment
137  HiLink xpmPixelString	String
138
139  delcommand HiLink
140endif
141
142let b:current_syntax = "xpm"
143
144" vim: ts=8:sw=3:noet:
145