1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
#!/usr/bin/perl
package IkiWiki::Plugin::highlight;
# This has been tested with highlight 2.16 and highlight 3.2+svn19.
# In particular version 3.2 won't work. It detects the different
# versions by the presence of the the highlight::DataDir class.
use warnings;
use strict;
use IkiWiki 3.00;
use Encode;
my $data_dir;
sub import {
hook(type => "getsetup", id => "highlight", call => \&getsetup);
hook(type => "checkconfig", id => "highlight", call => \&checkconfig);
# this hook is used by the format plugin
hook(type => "htmlizeformat", id => "highlight",
call => \&htmlizeformat, last => 1);
}
sub getsetup () {
return
plugin => {
safe => 1,
rebuild => 1, # format plugin
section => "format",
},
tohighlight => {
type => "string",
example => ".c .h .cpp .pl .py Makefile:make",
description => "types of source files to syntax highlight",
safe => 1,
rebuild => 1,
},
filetypes_conf => {
type => "string",
example => "/etc/highlight/filetypes.conf",
description => "location of highlight's filetypes.conf",
safe => 0,
rebuild => undef,
},
langdefdir => {
type => "string",
example => "/usr/share/highlight/langDefs",
description => "location of highlight's langDefs directory",
safe => 0,
rebuild => undef,
},
}
sub checkconfig () {
eval q{use highlight};
if (highlight::DataDir->can('new')){
$data_dir=new highlight::DataDir();
$data_dir->searchDataDir("");
} else {
$data_dir=undef;
}
if (! exists $config{filetypes_conf}) {
$config{filetypes_conf}=
($data_dir ? $data_dir->getConfDir() : "/etc/highlight/")
. "filetypes.conf";
}
if (! exists $config{langdefdir}) {
$config{langdefdir}=
($data_dir ? $data_dir->getLangPath("")
: "/usr/share/highlight/langDefs");
}
if (exists $config{tohighlight} && read_filetypes()) {
foreach my $file (split ' ', $config{tohighlight}) {
my @opts = $file=~s/^\.// ?
(keepextension => 1) :
(noextension => 1);
my $ext = $file=~s/:(.*)// ? $1 : $file;
my $langfile=ext2langfile($ext);
if (! defined $langfile) {
error(sprintf(gettext(
"tohighlight contains unknown file type '%s'"),
$ext));
}
hook(
type => "htmlize",
id => $file,
call => sub {
my %params=@_;
highlight($langfile, $params{content});
},
longname => sprintf(gettext("Source code: %s"), $file),
@opts,
);
}
}
}
sub htmlizeformat {
my $format=lc shift;
my $langfile=ext2langfile($format);
if (! defined $langfile) {
return;
}
return Encode::decode_utf8(highlight($langfile, shift));
}
my %ext2lang;
my $filetypes_read=0;
my %highlighters;
# Parse highlight's config file to get extension => language mappings.
sub read_filetypes () {
my $f;
if (!open($f, $config{filetypes_conf})) {
warn($config{filetypes_conf}.": ".$!);
return 0;
};
local $/=undef;
my $config=<$f>;
close $f;
# highlight >= 3.2 format (bind-style)
while ($config=~m/Lang\s*=\s*\"([^"]+)\"[,\s]+Extensions\s*=\s*{([^}]+)}/sg) {
my $lang=$1;
foreach my $bit (split ',', $2) {
$bit=~s/.*"(.*)".*/$1/s;
$ext2lang{$bit}=$lang;
}
}
# highlight < 3.2 format
if (! keys %ext2lang) {
foreach (split("\n", $config)) {
if (/^\$ext\((.*)\)=(.*)$/) {
$ext2lang{$_}=$1 foreach $1, split ' ', $2;
}
}
}
return $filetypes_read=1;
}
# Given a filename extension, determines the language definition to
# use to highlight it.
sub ext2langfile ($) {
my $ext=shift;
my $langfile="$config{langdefdir}/$ext.lang";
return $langfile if exists $highlighters{$langfile};
read_filetypes() unless $filetypes_read;
if (exists $ext2lang{$ext}) {
return "$config{langdefdir}/$ext2lang{$ext}.lang";
}
# If a language only has one common extension, it will not
# be listed in filetypes, so check the langfile.
elsif (-e $langfile) {
return $langfile;
}
else {
return undef;
}
}
# Interface to the highlight C library.
sub highlight ($$) {
my $langfile=shift;
my $input=shift;
eval q{use highlight};
if ($@) {
print STDERR gettext("warning: highlight perl module not available; falling back to pass through");
return $input;
}
my $gen;
if (! exists $highlighters{$langfile}) {
$gen = highlight::CodeGenerator::getInstance($highlight::XHTML);
$gen->setFragmentCode(1); # generate html fragment
$gen->setHTMLEnclosePreTag(1); # include stylish <pre>
if ($data_dir){
# new style, requires a real theme, but has no effect
$gen->initTheme($data_dir->getThemePath("seashell.theme"));
} else {
# old style, anything works.
$gen->initTheme("/dev/null");
}
$gen->loadLanguage($langfile); # must come after initTheme
$gen->setEncoding("utf-8");
$highlighters{$langfile}=$gen;
}
else {
$gen=$highlighters{$langfile};
}
return $gen->generateString($input);
}
1
|