60 lines
1.3 KiB
Perl
60 lines
1.3 KiB
Perl
#!/usr/bin/perl
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#
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# Include polygen output in a page
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#
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# by Enrico Zini
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package IkiWiki::Plugin::polygen;
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use warnings;
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use strict;
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use IkiWiki;
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use File::Find;
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sub import { #{{{
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hook(type => "preprocess", id => "polygen", call => \&preprocess);
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} # }}}
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sub preprocess (@) { #{{{
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my %params=@_;
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my $grammar = ($params{grammar} or 'polygen');
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my $symbol = ($params{symbol} or undef);
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# Sanitize parameters
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$grammar =~ IkiWiki::basename($grammar);
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$grammar =~ s/\.grm$//;
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$grammar .= '.grm';
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$symbol =~ s/[^A-Za-z0-9]//g if defined $symbol;
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$symbol = IkiWiki::possibly_foolish_untaint($symbol) if defined $symbol;
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my $grmfile = '/usr/share/polygen/ita/polygen.grm';
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if (! -d '/usr/share/polygen') {
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return "[[polygen not installed]]";
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}
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find({wanted => sub {
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if (substr($File::Find::name, -length($grammar)) eq $grammar) {
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$grmfile = IkiWiki::possibly_foolish_untaint($File::Find::name);
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}
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},
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no_chdir => 1,
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}, '/usr/share/polygen');
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my $res;
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if (defined $symbol) {
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$res = `polygen -S $symbol $grmfile 2>/dev/null`;
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}
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else {
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$res = `polygen $grmfile 2>/dev/null`;
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}
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if ($?) {
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$res="[[polygen failed]]";
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}
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# Strip trainling spaces and newlines so that we flow well with the
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# markdown text
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$res =~ s/\s*$//;
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return $res;
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} # }}}
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1
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