Text::Markup::CommonMark(3pm)

Name
Text::Markup::CommonMark - CommonMark Markdown parser for Text::Markup

Synopsis
  use Text::Markup::CommonMark;
  my $html = Text::Markup->new->parse(file => 'README.md');
  my $raw  = Text::Markup->new->parse(
      file    => 'README.md',
      options => [ raw => 1 ],
  );

Description
This is the CommonMark <https://commonmark.org> parser for Text::Markup. On load, it replaces the default Text::Markup::Markdown parser for parsing Markdown <https://daringfireball.net/projects/markdown/>. Note that Text::Markup does not load this module by default, but when loaded manually will be the preferred Markdown parser.

Text::Markup::CommonMark reads in the file (relying on a BOM <https://www.unicode.org/unicode/faq/utf_bom.html#BOM>), hands it off to CommonMark for parsing, and then returns the generated HTML as an encoded UTF-8 string with an "http-equiv="Content-Type"" element identifying the encoding as UTF-8.

It recognizes files with the following extensions as CommonMark Markdown:

.md
.mkd
.mkdn
.mdown
.markdown

To change it the files it recognizes, load this module directly and pass a regular expression matching the desired extension(s), like so:

  use Text::Markup::CommonMark qr{markd?};

Normally this module returns the output wrapped in a minimal HTML document skeleton. If you would like the raw output without the skeleton, you can pass the "raw" option to "parse".

In addition Text::CommonMark supports all of the CommonMark parse options and render options, including:

"smart"
    When true, convert straight quotes to curly, --- to em dashes, -- to en dashes. Enabled by default.

"sourcepos"
    When true, include a data-sourcepos attribute on all block elements. Disabled by default.

     =item C<hardbreaks>

    When true, render soft-break elements as hard line breaks. Disabled by default.

     =item C<nobreaks>

    When true, render soft-break elements as spaces. Disabled by default.

     =item C<validate_utf8>

    When true, validate UTF-8 in the input before parsing, replacing illegal sequences with the replacement character "U+FFFD". Disabled by default.

     =item C<unsafe>

    Render raw HTML and unsafe links ("javascript:", "vbscript:", "file:", and "data:", except for "image/png", "image/gif", "image/jpeg", or "image/webp" mime types). Raw HTML is replaced by a placeholder HTML comment. Unsafe links are replaced by empty strings. Enabled by default.

Author
David E. Wheeler <david@justatheory.com>

Copyright and License
Copyright (c) 2011-2025 David E. Wheeler. Some Rights Reserved.

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