cuberat / Pod-POM-View-Restructured

CPAN module Pod::POM::View::Restructured
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NAME Pod::POM::View::Restructured - View for Pod::POM that outputs reStructuredText

SYNOPSIS use Pod::POM::View::Restructured;

 my $view = Pod::POM::View::Restructured->new;
 my $parser = Pod::POM->new;
 my $pom = $parser->parse_file("$top_dir/lib/Pod/POM/View/Restructured.pm");
 my $out = $pom->present($view);

DESCRIPTION This module outputs reStructuredText that is expected to be used with Sphinx. Verbatim sections (indented paragraphs) in the POD will be output with syntax highlighting for Perl code by default. See "POD commands specifically for reStructuredText" for how to change this for a particular block.

This module can be downloaded from
<https://metacpan.org/release/Pod-POM-View-Restructured>.

METHODS "new(\%params)" Constructor. \%params is optional. If present, the following keys are valid:

"callbacks"
    See documentation below for "convert_file()".

"namespace"
    If a namespace is declared then links to that namespace are
    converted to cross references and an anchor is added for each head
    tag.

"convert_file($source_file, $title, $dest_file, $callbacks)" Converts the POD in $source_file to reStructuredText. If $dest_file is defined, it writes the output there. If $title is defined, it is used for the title of the document. Otherwise, an attempt is made to infer the title from the NAME section (checks if the body looks like "/\A\s*(\w+(?:::\w+)+)\s+-\s+/s").

Returns the output as a string.

$source_file and $dest_file can be either file names or file handles.

"convert_files($file_spec, $index_file, $index_title, $out_dir)" Converts the files given in $file_spec to reStructuredText. If $index_file is provided, it is the path to the index file to be created (with a table of contents pointing to all of the files created). If $index_title is provided, it is used as the section title for the index file. $out_dir is the directory the generated files will be written to.

$file_spec is a reference to an array of hashes specifying attributes
for each file to be converted. The valid keys are:

"source_file"
    File to convert.

"dest_file"
    File to output the reStructuredText. If not provided, a file name
    will be generated based on the title.

"title"
    Section title for the generated reStructuredText. If not provided,
    an attempt will be made to infer the title from the NAME section in
    the POD, if it exists. As a last resort, a title will be generated
    that looks like "section_(\d+)".

"callbacks"
    A reference to a hash containing names and the corresponding
    callbacks.

    Currently the only valid callback is "link". It is given the text
    inside a L<> section from the POD, and is expected to return a tuple
    "($url, $label)". If the value returned for $label is undefined, the
    value of $url is used as the label.

"no_toc"
    Causes the item to not be printed to the index or return in the
    "toc" field.

This method returns a hash ref with a table of contents (the "toc"
field) suitable for a reStructuredText table of contents.

E.g.,

 my $conv = Pod::POM::View::Restructured->new;

 my $files = [
              { source_file => "$base_dir/Restructured.pm" },
              { source_file => "$base_dir/DWIW.pm" },
              { source_file => "$base_dir/Wrapper.pm" },
             ];

 my $rv = $conv->convert_files($files, "$dest_dir/index.rst", 'My Big Test', $dest_dir);

POD commands specifically for reStructuredText The following sequences can be used in POD to request actions specifically for this module.

=for pod2rst next-code-block: lang This sets up the next verbatim section, i.e., the next indented paragraph to be highlighted according to the syntax of the programming/markup/config language lang. Verbatim sections are assumed to be Perl code by default. Sphinx uses Pygments to do syntax highlighting in these sections, so you can use any value for lang that Pygments supports, e.g., Python, C, C++, Javascript, SQL, etc.

EXAMPLES Converting a single file using "pod2rst" pod2rst --infile=Restructured.pm --outfile=restructured.rst

Need to document:

Document example of setting up sphinx build, generating rst from pod,
and building

TODO code highlighting Currently, a verbatim block (indented paragraph) gets output as a Perl code block by default in reStructuredText. There should be an option (e.g., in the constructor) to change the language for highlighting purposes (for all verbatim blocks), or disable syntax highlighting and just make it a preformatted paragraph. There is a way to do this in POD (see "POD commands specifically for reStructuredText"), but there should also be an option in the constructor.

improve escaping
    Text blocks are not escaped properly, so it is currently possible to
    invoke a command in reStructuredText by accident.

DEPENDENCIES Inherits from Pod::POM::View::Text that comes with the Pod::POM distribution.

AUTHORS Don Owens don@regexguy.com Jeff Fearn Jeff.Fearn@gmail.com Alex Muntada alexm@cpan.org

LICENSE AND COPYRIGHT Copyright (c) 2010 Don Owens don@regexguy.com. All rights reserved. Copyright (c) 2016 Jeff Fearn Jeff.Fearn@gmail.com. All rights reserved. Copyright (c) 2016-2021 Alex Muntada alexm@cpan.org. All rights reserved.

This is free software; you can redistribute it and/or modify it under
the same terms as Perl itself. See perlartistic.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

SEE ALSO Pod::POM

Pod::POM::View::HTML

pod2rst (distributed with Pod::POM::View::HTML)

reStructuredText: <http://docutils.sourceforge.net/rst.html>

Sphinx (uses reStructuredText): <https://www.sphinx-doc.org/>

Pygments (used by Sphinx for syntax highlighting):
<https://pygments.org/>