summaryrefslogtreecommitdiff
path: root/Master/tlpkg/TeXLive/TeXCatalogue.pm
blob: 7322278da9fec354c0fa7816a56b6fee35ac9a40 (plain)
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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
# $Id$
# TeXLive::TeXCatalogue - module for accessing the TeX Catalogue
#
# Copyright 2007, 2008, 2009 Norbert Preining
# This file is licensed under the GNU General Public License version 2
# or any later version.
# 
# Loads of code taken from the catalogue checking script of Robin Fairbairns.

use XML::Parser;
use XML::XPath;
use XML::XPath::XMLParser;

use open qw(:utf8 :std);

package TeXLive::TeXCatalogue::Entry;

my $_parser = XML::Parser->new(
  ErrorContext => 2,
  ParseParamEnt => 1,
  NoLWP => 1
);

sub new {
  my $class = shift;
  my %params = @_;
  my $self = {
    ioref => $params{'ioref'},
    entry => defined($params{'entry'}) ? $params{'entry'} : {},
    docs => defined($params{'docs'}) ? $params{'docs'} : {},
    name => $params{'name'},
    caption => $params{'caption'},
    description => $params{'description'},
    license => $params{'license'},
    ctan => $params{'ctan'},
    texlive => $params{'texlive'},
    miktex => $params{'miktex'},
    version => $params{'version'},
  };
  bless $self, $class;
  if (defined($self->{'ioref'})) {
    $self->initialize();
  }
  return $self;
}

sub initialize {
  my $self = shift;
  # parse all the files
  my $parser = new XML::XPath->new(ioref => $self->{'ioref'}, parser => $_parser) ||
    die "Failed to parse the given ioref";
  $self->{'entry'}{'id'} = $parser->findvalue('/entry/@id');
  $self->{'entry'}{'date'} = $parser->findvalue('/entry/@datestamp');
  $self->{'entry'}{'modder'} = $parser->findvalue('/entry/@modifier');
  $self->{'name'} = $parser->findvalue("/entry/name");
  $self->{'caption'} = beautify($parser->findvalue("/entry/caption"));
  $self->{'description'} = beautify($parser->findvalue("/entry/description"));
  $self->{'license'} = $parser->findvalue('/entry/license/@type');
  $self->{'version'} = $parser->findvalue('/entry/version/@number');
  $self->{'ctan'} = $parser->findvalue('/entry/ctan/@path');
  if ($parser->findvalue('/entry/texlive/@location') ne "") {
    $self->{'texlive'} = $parser->findvalue('/entry/texlive/@location');
  }
  if ($parser->findvalue('/entry/miktex/@location') ne "") {
    $self->{'miktex'} = $parser->findvalue('/entry/miktex/@location');
  }
  # parse the documentation entries
  my $docset = $parser->find('/entry/documentation');
  foreach my $node ($docset->get_nodelist) {
    my $docfile = $parser->find('./@href',$node);
    my $details = $parser->find('./@details',$node);
    my $language = $parser->find('./@language',$node);
    $self->{'docs'}{$docfile}{'available'} = 1;
    if ($details) { $self->{'docs'}{$docfile}{'details'} = $details; }
    if ($language) { $self->{'docs'}{$docfile}{'language'} = $language; }
  }
}

sub beautify{
  my ($txt) = @_;
  $txt =~ s/\n/ /g;
  $txt =~ s/^[[:space:]]*//g;
  $txt =~ s/[[:space:]][[:space:]]*/ /g;
  return $txt;
}

sub name {
  my $self = shift;
  if (@_) { $self->{'name'} = shift }
  return $self->{'name'};
}
sub license {
  my $self = shift;
  if (@_) { $self->{'license'} = shift }
  return $self->{'license'};
}
sub version {
  my $self = shift;
  if (@_) { $self->{'version'} = shift }
  return $self->{'version'};
}
sub caption {
  my $self = shift;
  if (@_) { $self->{'caption'} = shift }
  return $self->{'caption'};
}
sub description {
  my $self = shift;
  if (@_) { $self->{'description'} = shift }
  return $self->{'description'};
}
sub ctan {
  my $self = shift;
  if (@_) { $self->{'ctan'} = shift }
  return $self->{'ctan'};
}
sub texlive {
  my $self = shift;
  if (@_) { $self->{'texlive'} = shift }
  return $self->{'texlive'};
}
sub miktex {
  my $self = shift;
  if (@_) { $self->{'miktex'} = shift }
  return $self->{'miktex'};
}
sub docs {
  my $self = shift;
  my %newdocs = @_;
  if (@_) { $self->{'docs'} = \%newdocs }
  return $self->{'docs'};
}
sub entry {
  my $self = shift;
  my %newentry = @_;
  if (@_) { $self->{'entry'} = \%newentry }
  return $self->{'entry'};
}


################################################################
#
# TeXLive::TeXCatalogue
#
################################################################
package TeXLive::TeXCatalogue;

sub new { 
  my $class = shift;
  my %params = @_;
  my $self = {
    location => $params{'location'},
    entries => defined($params{'entries'}) ? $params{'entries'} : {},
  };
  bless $self, $class;
  if (defined($self->{'location'})) {
    $self->initialize();
  }
  return $self;
}

sub initialize {
  my $self = shift;
  # chdir to the location of the DTD file, otherwise it cannot be found
  # furthermore we have to open the xml file from a file handle otherwise
  # the catalogue.dtd is searched in a/catalogue.dtd etc, see above
  my $cwd = `pwd`;
  chomp($cwd);
  chdir($self->{'location'} . "/entries") || die ("Cannot chdir to TeX Catalogue entries: $!");
  # parse all the files
  foreach (glob("?/*.xml")) {
    open(my $io,"<$_") or die "Cannot read $_: $!";
    my $tce = TeXLive::TeXCatalogue::Entry->new( 'ioref' => $io );
    close($io);
    $self->{'entries'}{$tce->name} = $tce;
  }
  chdir($cwd) || die ("Cannot change back to $cwd: $!");
}

sub location {
  my $self = shift;
  if (@_) { $self->{'location'} = shift }
  return $self->{'location'};
}
sub entries {
  my $self = shift;
  my %newentries = @_;
  if (@_) { $self->{'entries'} = \%newentries }
  return $self->{'entries'};
}

1;
__END__


=head1 NAME

TeXLive::TeXCatalogue - Accessing the TeX Catalogue

=head1 SYNOPSIS

missing

=head1 DESCRIPTION

The L<TeXLive::TeXCatalogue> module provides access to the data stored
in the TeX Catalogue.

DOCUMENTATION MISSING, SORRY!!!

=head1 AUTHORS AND COPYRIGHT

This script and its documentation were written for the TeX Live
distribution (L<http://tug.org/texlive>) and both are licensed under the
GNU General Public License Version 2 or later.

=cut

### Local Variables:
### perl-indent-level: 2
### tab-width: 2
### indent-tabs-mode: nil
### End:
# vim:set tabstop=2 expandtab: #