Mercurial > hg > RemoteEditor > vim7
annotate runtime/syntax/lhaskell.vim @ 34:e170173ecb68 current-release
before ack base protocol.
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Wed, 26 Nov 2008 15:02:10 +0900 |
parents | 76efa0be13f1 |
children | c16898406ff2 |
rev | line source |
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0 | 1 " Vim syntax file |
2 " Language: Haskell with literate comments, Bird style, | |
3 " TeX style and plain text surrounding | |
4 " \begin{code} \end{code} blocks | |
5 " Maintainer: Haskell Cafe mailinglist <haskell-cafe@haskell.org> | |
6 " Original Author: Arthur van Leeuwen <arthurvl@cs.uu.nl> | |
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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7 " Last Change: 2008 Jul 01 |
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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8 " Version: 1.02 |
0 | 9 " |
10 " Thanks to Ian Lynagh for thoughtful comments on initial versions and | |
11 " for the inspiration for writing this in the first place. | |
12 " | |
13 " This style guesses as to the type of markup used in a literate haskell | |
14 " file and will highlight (La)TeX markup if it finds any | |
15 " This behaviour can be overridden, both glabally and locally using | |
16 " the lhs_markup variable or b:lhs_markup variable respectively. | |
17 " | |
18 " lhs_markup must be set to either tex or none to indicate that | |
19 " you always want (La)TeX highlighting or no highlighting | |
20 " must not be set to let the highlighting be guessed | |
21 " b:lhs_markup must be set to eiterh tex or none to indicate that | |
22 " you want (La)TeX highlighting or no highlighting for | |
23 " this particular buffer | |
24 " must not be set to let the highlighting be guessed | |
25 " | |
26 " | |
27 " 2004 February 18: New version, based on Ian Lynagh's TeX guessing | |
28 " lhaskell.vim, cweb.vim, tex.vim, sh.vim and fortran.vim | |
29 " 2004 February 20: Cleaned up the guessing and overriding a bit | |
30 " 2004 February 23: Cleaned up syntax highlighting for \begin{code} and | |
31 " \end{code}, added some clarification to the attributions | |
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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32 " 2008 July 1: Removed % from guess list, as it totally breaks plain |
e170173ecb68
before ack base protocol.
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
33 " text markup guessing |
0 | 34 " |
35 | |
36 | |
37 " For version 5.x: Clear all syntax items | |
38 " For version 6.x: Quit when a syntax file was already loaded | |
39 if version < 600 | |
40 syntax clear | |
41 elseif exists("b:current_syntax") | |
42 finish | |
43 endif | |
44 | |
45 " First off, see if we can inherit a user preference for lhs_markup | |
46 if !exists("b:lhs_markup") | |
47 if exists("lhs_markup") | |
48 if lhs_markup =~ '\<\%(tex\|none\)\>' | |
49 let b:lhs_markup = matchstr(lhs_markup,'\<\%(tex\|none\)\>') | |
50 else | |
51 echohl WarningMsg | echo "Unknown value of lhs_markup" | echohl None | |
52 let b:lhs_markup = "unknown" | |
53 endif | |
54 else | |
55 let b:lhs_markup = "unknown" | |
56 endif | |
57 else | |
58 if b:lhs_markup !~ '\<\%(tex\|none\)\>' | |
59 let b:lhs_markup = "unknown" | |
60 endif | |
61 endif | |
62 | |
63 " Remember where the cursor is, and go to upperleft | |
64 let s:oldline=line(".") | |
65 let s:oldcolumn=col(".") | |
66 call cursor(1,1) | |
67 | |
68 " If no user preference, scan buffer for our guess of the markup to | |
69 " highlight. We only differentiate between TeX and plain markup, where | |
70 " plain is not highlighted. The heuristic for finding TeX markup is if | |
71 " one of the following occurs anywhere in the file: | |
72 " - \documentclass | |
73 " - \begin{env} (for env != code) | |
74 " - \part, \chapter, \section, \subsection, \subsubsection, etc | |
75 if b:lhs_markup == "unknown" | |
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Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
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76 if search('\\documentclass\|\\begin{\(code}\)\@!\|\\\(sub \)*section\|\\chapter|\\part','W') != 0 |
0 | 77 let b:lhs_markup = "tex" |
78 else | |
79 let b:lhs_markup = "plain" | |
80 endif | |
81 endif | |
82 | |
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83 " If user wants us to highlight TeX syntax or guess thinks it's TeX, read it. |
0 | 84 if b:lhs_markup == "tex" |
85 if version < 600 | |
86 source <sfile>:p:h/tex.vim | |
87 set isk+=_ | |
88 else | |
89 runtime! syntax/tex.vim | |
90 unlet b:current_syntax | |
91 " Tex.vim removes "_" from 'iskeyword', but we need it for Haskell. | |
92 setlocal isk+=_ | |
93 endif | |
94 endif | |
95 | |
96 " Literate Haskell is Haskell in between text, so at least read Haskell | |
97 " highlighting | |
98 if version < 600 | |
99 syntax include @haskellTop <sfile>:p:h/haskell.vim | |
100 else | |
101 syntax include @haskellTop syntax/haskell.vim | |
102 endif | |
103 | |
104 syntax region lhsHaskellBirdTrack start="^>" end="\%(^[^>]\)\@=" contains=@haskellTop,lhsBirdTrack | |
105 syntax region lhsHaskellBeginEndBlock start="^\\begin{code}\s*$" matchgroup=NONE end="\%(^\\end{code}.*$\)\@=" contains=@haskellTop,@beginCode | |
106 | |
107 syntax match lhsBirdTrack "^>" contained | |
108 | |
109 syntax match beginCodeBegin "^\\begin" nextgroup=beginCodeCode contained | |
110 syntax region beginCodeCode matchgroup=texDelimiter start="{" end="}" | |
111 syntax cluster beginCode contains=beginCodeBegin,beginCodeCode | |
112 | |
113 " Define the default highlighting. | |
114 " For version 5.7 and earlier: only when not done already | |
115 " For version 5.8 and later: only when an item doesn't have highlighting yet | |
116 if version >= 508 || !exists("did_tex_syntax_inits") | |
117 if version < 508 | |
118 let did_tex_syntax_inits = 1 | |
119 command -nargs=+ HiLink hi link <args> | |
120 else | |
121 command -nargs=+ HiLink hi def link <args> | |
122 endif | |
123 | |
124 HiLink lhsBirdTrack Comment | |
125 | |
126 HiLink beginCodeBegin texCmdName | |
127 HiLink beginCodeCode texSection | |
128 | |
129 delcommand HiLink | |
130 endif | |
131 | |
132 " Restore cursor to original position, as it may have been disturbed | |
133 " by the searches in our guessing code | |
134 call cursor (s:oldline, s:oldcolumn) | |
135 | |
136 unlet s:oldline | |
137 unlet s:oldcolumn | |
138 | |
139 let b:current_syntax = "lhaskell" | |
140 | |
141 " vim: ts=8 |