xref: /vim-8.2.3635/runtime/syntax/xpm.vim (revision 89bcfda6)
1" Vim syntax file
2" Language:	X Pixmap
3" Maintainer:	Ronald Schild <[email protected]>
4" Last Change:	2008 May 28
5" Version:	5.4n.1
6
7" quit when a syntax file was already loaded
8if exists("b:current_syntax")
9  finish
10endif
11
12syn keyword xpmType		char
13syn keyword xpmStorageClass	static
14syn keyword xpmTodo		TODO FIXME XXX  contained
15syn region  xpmComment		start="/\*"  end="\*/"  contains=xpmTodo
16syn region  xpmPixelString	start=+"+  skip=+\\\\\|\\"+  end=+"+  contains=@xpmColors
17
18if has("gui_running")
19
20let color  = ""
21let chars  = ""
22let colors = 0
23let cpp    = 0
24let n      = 0
25let i      = 1
26
27while i <= line("$")		" scanning all lines
28
29   let s = matchstr(getline(i), '".\{-1,}"')
30   if s != ""			" does line contain a string?
31
32      if n == 0			" first string is the Values string
33
34	 " get the 3rd value: colors = number of colors
35	 let colors = substitute(s, '"\s*\d\+\s\+\d\+\s\+\(\d\+\).*"', '\1', '')
36	 " get the 4th value: cpp = number of character per pixel
37	 let cpp = substitute(s, '"\s*\d\+\s\+\d\+\s\+\d\+\s\+\(\d\+\).*"', '\1', '')
38	 if cpp =~ '[^0-9]'
39	    break  " if cpp is not made of digits there must be something wrong
40	 endif
41
42	 " Highlight the Values string as normal string (no pixel string).
43	 " Only when there is no slash, it would terminate the pattern.
44	 if s !~ '/'
45	    exe 'syn match xpmValues /' . s . '/'
46	 endif
47	 hi link xpmValues String
48
49	 let n = 1		" n = color index
50
51      elseif n <= colors	" string is a color specification
52
53	 " get chars = <cpp> length string representing the pixels
54	 " (first incl. the following whitespace)
55	 let chars = substitute(s, '"\(.\{'.cpp.'}\s\).*"', '\1', '')
56
57	 " now get color, first try 'c' key if any (color visual)
58	 let color = substitute(s, '".*\sc\s\+\(.\{-}\)\s*\(\(g4\=\|[ms]\)\s.*\)*\s*"', '\1', '')
59	 if color == s
60	    " no 'c' key, try 'g' key (grayscale with more than 4 levels)
61	    let color = substitute(s, '".*\sg\s\+\(.\{-}\)\s*\(\(g4\|[ms]\)\s.*\)*\s*"', '\1', '')
62	    if color == s
63	       " next try: 'g4' key (4-level grayscale)
64	       let color = substitute(s, '".*\sg4\s\+\(.\{-}\)\s*\([ms]\s.*\)*\s*"', '\1', '')
65	       if color == s
66		  " finally try 'm' key (mono visual)
67		  let color = substitute(s, '".*\sm\s\+\(.\{-}\)\s*\(s\s.*\)*\s*"', '\1', '')
68		  if color == s
69		     let color = ""
70		  endif
71	       endif
72	    endif
73	 endif
74
75	 " Vim cannot handle RGB codes with more than 6 hex digits
76	 if color =~ '#\x\{10,}$'
77	    let color = substitute(color, '\(\x\x\)\x\x', '\1', 'g')
78	 elseif color =~ '#\x\{7,}$'
79	    let color = substitute(color, '\(\x\x\)\x', '\1', 'g')
80	 " nor with 3 digits
81	 elseif color =~ '#\x\{3}$'
82	    let color = substitute(color, '\(\x\)\(\x\)\(\x\)', '0\10\20\3', '')
83	 endif
84
85	 " escape meta characters in patterns
86	 let s = escape(s, '/\*^$.~[]')
87	 let chars = escape(chars, '/\*^$.~[]')
88
89	 " now create syntax items
90	 " highlight the color string as normal string (no pixel string)
91	 exe 'syn match xpmCol'.n.'Def /'.s.'/ contains=xpmCol'.n.'inDef'
92	 exe 'hi link xpmCol'.n.'Def String'
93
94	 " but highlight the first whitespace after chars in its color
95	 exe 'syn match xpmCol'.n.'inDef /"'.chars.'/hs=s+'.(cpp+1).' contained'
96	 exe 'hi link xpmCol'.n.'inDef xpmColor'.n
97
98	 " remove the following whitespace from chars
99	 let chars = substitute(chars, '.$', '', '')
100
101	 " and create the syntax item contained in the pixel strings
102	 exe 'syn match xpmColor'.n.' /'.chars.'/ contained'
103	 exe 'syn cluster xpmColors add=xpmColor'.n
104
105	 " if no color or color = "None" show background
106	 if color == ""  ||  substitute(color, '.*', '\L&', '') == 'none'
107	    exe 'hi xpmColor'.n.' guifg=bg'
108	    exe 'hi xpmColor'.n.' guibg=NONE'
109	 elseif color !~ "'"
110	    exe 'hi xpmColor'.n." guifg='".color."'"
111	    exe 'hi xpmColor'.n." guibg='".color."'"
112	 endif
113	 let n = n + 1
114      else
115	 break		" no more color string
116      endif
117   endif
118   let i = i + 1
119endwhile
120
121unlet color chars colors cpp n i s
122
123endif		" has("gui_running")
124
125" Define the default highlighting.
126" Only when an item doesn't have highlighting yet
127command -nargs=+ HiLink hi def link <args>
128
129HiLink xpmType		Type
130HiLink xpmStorageClass	StorageClass
131HiLink xpmTodo		Todo
132HiLink xpmComment		Comment
133HiLink xpmPixelString	String
134
135delcommand HiLink
136
137let b:current_syntax = "xpm"
138
139" vim: ts=8:sw=3:noet:
140