SVG::Metadata - Perl module to capture metadata info about an SVG file
use SVG::Metadata; $svgmeta->parse($filename) or die "Could not parse $filename: " . $svgmeta->errormsg(); $svgmeta2->parse($filename2) or die "Could not parse $filename: " . $svgmeta->errormsg(); # Do the files have the same metadata (author, title, license)? if (! $svgmeta->compare($svgmeta2) ) { print "$filename is different than $filename2\n"; } if ($svgmeta->title() eq '') { $svgmeta->title('Unknown'); } if ($svgmeta->author() eq '') { $svgmeta->author('Unknown'); } if ($svgmeta->license() eq '') { $svgmeta->license('Unknown'); } if (! $svgmeta->keywords()) { $svgmeta->addKeyword('unsorted'); } elsif ($svgmeta->hasKeyword('unsorted') && $svgmeta->keywords()>1) { $svgmeta->removeKeyword('unsorted'); } print $svgmeta->to_text();
This module provides a way of extracting, browsing and using RDF metadata embedded in an SVG file.
Creates a new SVG::Metadata object. Optionally, can pass in arguments 'title', 'author', and/or 'license'.
Returns the last encountered error message. Most of the error messages are encountered during file parsing.
Extracts RDF metadata out of an existing SVG file.
$svgmeta->parse($filename) || die "Error: " . $svgmeta->errormsg();
This routine looks for a field in the rdf:RDF section of the document named 'ns:Work' and then attempts to load the following keys from it: 'dc:title', 'dc:rights'->'ns:Agent', and 'ns:license'. If any are missing, it
Returns undef if there was a problem parsing the file, and sets an error message appropriately. The conditions under which it will return undef are as follows: No 'filename' parameter given
Gets or sets the title.
$svgmeta->title('My Title'); print $svgmeta->title();
Gets or sets the author.
$svgmeta->author('Bris Geek'); print $svgmeta->author();
Gets or sets the license.
$svgmeta->license('Public Domain'); print $svgmeta->license();
Gets or sets an array of keywords
Adds one or more a new keywords
$svgmeta->addKeyword('Fruit'); $svgmeta->addKeyword('Fruit','Vegetable','Animal','Mineral');
Removes a given keyword
Return value: The keyword removed.
Returns true if the metadata includes the given keyword
Compares this metadata to another metadata for equality.
Two SVG file metadata objects are considered equivalent if they have exactly the same author, title, and license. Keywords can vary, as can the SVG file itself.
Creates a plain text representation of the metadata, suitable for debuggery, emails, etc.
Return value is a string containing the title, author, license, and keywords, each value on a separate line.
Bryce Harrington <bryce@bryceharrington.com>
perl, XML::Simple
To install SVG::Metadata, copy and paste the appropriate command in to your terminal.
cpanm
cpanm SVG::Metadata
CPAN shell
perl -MCPAN -e shell install SVG::Metadata
For more information on module installation, please visit the detailed CPAN module installation guide.