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authorNorbert Preining <preining@logic.at>2007-10-18 05:16:20 +0000
committerNorbert Preining <preining@logic.at>2007-10-18 05:16:20 +0000
commit127889537b710d6ea2a4f2ab65584e61c1a444d6 (patch)
tree266a823037a01e662fd7dceca81afb3d62455f1a /Master/tlpkg/TeXLive/TeXCatalogue.pm
parent0db8de00e15677f174100034c9ade42298aad9af (diff)
new texcatalogue module based on XML::XPath
git-svn-id: svn://tug.org/texlive/trunk@5222 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/tlpkg/TeXLive/TeXCatalogue.pm')
-rw-r--r--Master/tlpkg/TeXLive/TeXCatalogue.pm122
1 files changed, 55 insertions, 67 deletions
diff --git a/Master/tlpkg/TeXLive/TeXCatalogue.pm b/Master/tlpkg/TeXLive/TeXCatalogue.pm
index eb5682068d4..e034e9d0f5d 100644
--- a/Master/tlpkg/TeXLive/TeXCatalogue.pm
+++ b/Master/tlpkg/TeXLive/TeXCatalogue.pm
@@ -7,15 +7,23 @@
#
# Loads of code taken from the catalogue checking script of Robin Fairbairns.
-use XML::DOM;
+use XML::Parser;
+use XML::XPath;
+use XML::XPath::XMLParser;
package TeXLive::TeXCatalogue::Entry;
+my $_parser = XML::Parser->new(
+ ErrorContext => 2,
+ ParseParamEnt => 1,
+ NoLWP => 1
+);
+
sub new {
my $class = shift;
my %params = @_;
my $self = {
- xmlfile => $params{'xmlfile'},
+ ioref => $params{'ioref'},
entry => defined($params{'entry'}) ? $params{'entry'} : {},
docs => defined($params{'docs'}) ? $params{'docs'} : {},
name => $params{'name'},
@@ -23,10 +31,9 @@ sub new {
ctan => $params{'ctan'},
texlive => $params{'texlive'},
version => $params{'version'},
- url => $params{'url'},
};
bless $self, $class;
- if (defined($self->{'xmlfile'})) {
+ if (defined($self->{'ioref'})) {
$self->initialize();
}
return $self;
@@ -34,72 +41,40 @@ sub new {
sub initialize {
my $self = shift;
- my $parser = new XML::DOM::Parser;
# parse all the files
- my $cat = $parser->parsefile ($self->{'xmlfile'}) ||
- die "Failed to parse ", $self->{'xmlfile'};
- # there's almost always only one, but...
- my $entryset = $cat -> getElementsByTagName ("entry");
- my $entry = $entryset->item(0);
- # entry attributes
- my $entryid = $entry->getAttributeNode("id");
- $self->{'entry'}{'id'} = $entryid->getValue;
- my $entrydate = $entry->getAttributeNode("datestamp");
- if ($entrydate) {
- $self->{'entry'}{'date'} = $entrydate->getValue;
- }
- my $entrymodder = $entry->getAttributeNode("modifier");
- if ($entrymodder) {
- $self->{'entry'}{'modder'} = $entrymodder->getValue;
- }
- # parse the rest of the entries
- # only the first name and caption is allowed
- # description CANNOT be parsed like this since it contains more childs!!
- # (<tt> <xref> etc elements
- foreach my $k qw/name caption/ {
- $self->{$k} = $cat->getElementsByTagName($k)->item(0)->getFirstChild->toString;
- }
- $self->{'license'} = $cat->getElementsByTagName("license")->item(0)->getAttributeNode("type")->getValue;
- my $versnode = $cat->getElementsByTagName("version")->item(0);
- if ($versnode) {
- my $numnode = $versnode->getAttributeNode("number");
- if ($numnode) {
- $self->{'version'} = $numnode->getValue;
- }
- }
- my $urlnode = $cat->getElementsByTagName("home")->item(0);
- if ($urlnode) {
- $self->{'url'} = $urlnode->getAttributeNode("href")->getValue;
- }
- $ctannode = $cat->getElementsByTagName("ctan")->item(0);
- if ($ctannode) {
- $self->{'ctan'} = $ctannode->getAttributeNode("path")->getValue;
- }
- my $tlnode = $cat->getElementsByTagName("texlive")->item(0);
- if ($tlnode) {
- $self->{'texlive'} = $tlnode->getAttributeNode("location")->getValue;
- }
+ 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'} = $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');
+ $self->{'texlive'} = $parser->findvalue('/entry/texlive/@location');
+ $self->{'miktex'} = $parser->findvalue('/entry/miktex/@location');
# parse the documentation entries
- my $doc = $cat->getElementsByTagName ("documentation");
- for (my $i=0; $i < $doc->getLength; $i++ ) {
- my $node = $doc->item($i);
- my $docfile = $node->getAttributeNode("href")->getValue;
- my $detailsnode = $node->getAttributeNode("details");
- if ($detailsnode) { $details = $detailsnode->getValue; }
- my $languagenode = $node->getAttributeNode("language");
- if ($languagenode) { $language = $languagenode->getValue; }
+ 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; }
}
- $cat->dispose;
}
-sub xmlfile {
- my $self = shift;
- if (@_) { $self->{'xmlfile'} = shift }
- return $self->{'xmlfile'};
+sub beautify{
+ my ($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 }
@@ -120,10 +95,10 @@ sub caption {
if (@_) { $self->{'caption'} = shift }
return $self->{'caption'};
}
-sub url {
+sub description {
my $self = shift;
- if (@_) { $self->{'url'} = shift }
- return $self->{'url'};
+ if (@_) { $self->{'description'} = shift }
+ return $self->{'description'};
}
sub ctan {
my $self = shift;
@@ -135,6 +110,11 @@ sub texlive {
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 = @_;
@@ -172,12 +152,20 @@ sub new {
sub initialize {
my $self = shift;
- my $parser = new XML::DOM::Parser;
+ # 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: $!");
# parse all the files
- foreach (glob($self->{'location'} . "/entries/?/*.xml")) {
- my $tce = TeXLive::TeXCatalogue::Entry->new( 'xmlfile' => "$_" );
+ 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 {