/usr/share/perl5/IkiWiki/Plugin/smiley.pm is in ikiwiki 3.20120202ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | #!/usr/bin/perl
package IkiWiki::Plugin::smiley;
use warnings;
use strict;
use IkiWiki 3.00;
my %smileys;
my $smiley_regexp;
sub import {
add_underlay("smiley");
hook(type => "getsetup", id => "smiley", call => \&getsetup);
hook(type => "sanitize", id => "smiley", call => \&sanitize);
}
sub getsetup () {
return
plugin => {
safe => 1,
# force a rebuild because turning it off
# removes the smileys, which would break links
rebuild => 1,
},
}
sub build_regexp () {
my $srcfile = srcfile("smileys.mdwn", 1);
if (! defined $srcfile) {
print STDERR sprintf(gettext("smiley plugin will not work without %s"),
"smileys.mdwn")."\n";
$smiley_regexp='';
return;
}
my $list=readfile($srcfile);
while ($list =~ m/^\s*\*\s+\\\\([^\s]+)\s+\[\[([^]]+)\]\]/mg) {
my $smiley=$1;
my $file=$2;
$smileys{$smiley}=$file;
# Add a version with < and > escaped, since they probably
# will be (by markdown) by the time the sanitize hook runs.
$smiley=~s/</</g;
$smiley=~s/>/>/g;
$smileys{$smiley}=$file;
}
if (! %smileys) {
debug(gettext("failed to parse any smileys"));
$smiley_regexp='';
return;
}
# sort and reverse so that substrings come after longer strings
# that contain them, in most cases.
$smiley_regexp='('.join('|', map { quotemeta }
reverse sort keys %smileys).')';
#debug($smiley_regexp);
}
sub sanitize (@) {
my %params=@_;
build_regexp() unless defined $smiley_regexp;
$_=$params{content};
return $_ unless length $smiley_regexp;
MATCH: while (m{(?:^|(?<=\s|>))(\\?)$smiley_regexp(?:(?=\s|<)|$)}g) {
my $escape=$1;
my $smiley=$2;
my $epos=$-[1];
my $spos=$-[2];
# Smilies are not allowed inside <pre> or <code>.
# For each tag in turn, match forward to find the next <tag>
# or </tag> after the smiley.
my $pos=pos;
foreach my $tag ("pre", "code") {
if (m/<(\/)?\s*$tag\s*>/isg && defined $1) {
# </tag> found first, so the smiley is
# inside the tag, so do not expand it.
next MATCH;
}
# Reset pos back to where it was before this test.
pos=$pos;
}
if ($escape) {
# Remove escape.
substr($_, $epos, 1)="";
pos=$epos+1;
}
else {
# Replace the smiley with its expanded value.
my $link=htmllink($params{page}, $params{destpage},
$smileys{$smiley}, linktext => $smiley);
substr($_, $spos, length($smiley))=$link;
pos=$epos+length($link);
}
}
return $_;
}
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