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Pod::ParseLink - Parse an L<> formatting code in POD text
use Pod::ParseLink;
my ($text, $inferred, $name, $section, $type) = parselink ($link);
This module only provides a single function, parselink(), which takes the text of an L<> formatting code and parses it. It returns the anchor text for the link (if any was given), the anchor text possibly inferred from the name and section, the name or URL, the section if any, and the type of link. The type will be one of 'url', 'pod', or 'man', indicating a URL, a link to a POD page, or a link to a Unix manual page.
Parsing is implemented per the perlpodspec manpage. For backward compatibility, links where there is no section and name contains spaces, or links where the entirety of the link (except for the anchor text if given) is enclosed in double-quotes are interpreted as links to a section (L</section>).
The inferred anchor text is implemented per the perlpodspec manpage:
L<name> => L<name|name>
L</section> => L<"section"|/section>
L<name/section> => L<"section" in name|name/section>
The name may contain embedded E<> and Z<> formatting codes, and the section, anchor text, and inferred anchor text may contain any formatting codes. Any double quotes around the section are removed as part of the parsing, as is any leading or trailing whitespace.
If the text of the L<> escape is entirely enclosed in double quotes, it's interpreted as a link to a section for backwards compatibility.
No attempt is made to resolve formatting codes. This must be done after calling parselink (since E<> formatting codes can be used to escape characters that would otherwise be significant to the parser and resolving them before parsing would result in an incorrect parse of a formatting code like:
L<verticalE<verbar>barE<sol>slash>
which should be interpreted as a link to the vertical|bar/slash POD page
and not as a link to the slash section of the bar POD page with an
anchor text of vertical. Note that not only the anchor text will need to
have formatting codes expanded, but so will the target of the link (to deal
with E<> and Z<> formatting codes), and special handling of
the section may be necessary depending on whether the translator wants to
consider markup in sections to be significant when resolving links. See
the perlpodspec manpage for more information.
The current version of this module is always available from its web site at http://www.eyrie.org/~eagle/software/podlators/.
Russ Allbery <rra@stanford.edu>.
Copyright 2001 by Russ Allbery <rra@stanford.edu>.
This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.