build(deps): bump loofah from 2.19.1 to 2.21.4

[dependabot]

Bumps loofah from 2.19.1 to 2.21.4.

Release notes

Sourced from loofah's releases.

2.21.4 / 2023-10-10

Fixed

• Loofah::HTML5::Scrub.scrub_css is more consistent in preserving whitespace (and lack of whitespace) in CSS property values. In particular, .scrub_css no longer inserts whitespace between tokens that did not already have whitespace between them. [#273, fixes #271]

2.21.3 / 2023-05-15

• Quash "instance variable not initialized" warning in Ruby < 3.0. [#268] (Thanks, @​dharamgollapudi!)

2.21.2 / 2023-05-11

Dependencies

• Update the dependency on Nokogiri to be >= 1.12.0. The dependency in 2.21.0 and 2.21.1 was left at >= 1.5.9 but versions before 1.12 would result in a NameError exception. [#266]

2.21.1 / 2023-05-10

Fixed

• Don't define HTML5::Document and HTML5::DocumentFragment when Nokogiri is < 1.14. In 2.21.0 these classes were defined whenever Nokogiri::HTML5 was defined, but Nokogiri v1.12 and v1.13 do not support Loofah subclassing properly.

2.21.0 / 2023-05-10

HTML5 Support

Classes Loofah::HTML5::Document and Loofah::HTML5::DocumentFragment are introduced, along with helper methods:

• Loofah.html5_document
• Loofah.html5_fragment
• Loofah.scrub_html5_document
• Loofah.scrub_html5_fragment

These classes and methods use Nokogiri's HTML5 parser to ensure modern web standards are used.

⚠ HTML5 functionality is only available with Nokogiri v1.14.0 and higher.

⚠ HTML5 functionality is not available for JRuby. Please see this upstream Nokogiri issue if you're interested in helping implement and support HTML5 support.

Loofah::HTML4 module and namespace

Loofah::HTML has been renamed to Loofah::HTML4, and Loofah::HTML is aliased to preserve backwards-compatibility. Nokogiri::HTML and Nokogiri::HTML4 parse methods still use libxml2's (or NekoHTML's) HTML4 parser.

Take special note that if you rely on the class name of an object in your code, objects will now report a class of Loofah::HTML4::Foo where they previously reported Loofah::HTML::Foo. Instead of relying on the string returned by Object#class, prefer Class#=== or Object#is_a? or Object#instance_of?.

... (truncated)

Changelog

Sourced from loofah's changelog.

2.21.4 / 2023-10-10

Fixed

• Loofah::HTML5::Scrub.scrub_css is more consistent in preserving whitespace (and lack of whitespace) in CSS property values. In particular, .scrub_css no longer inserts whitespace between tokens that did not already have whitespace between them. [#273, fixes #271]

2.21.3 / 2023-05-15

Fixed

• Quash "instance variable not initialized" warning in Ruby < 3.0. [#268] (Thanks, @​dharamgollapudi!)

2.21.2 / 2023-05-11

Dependencies

• Update the dependency on Nokogiri to be >= 1.12.0. The dependency in 2.21.0 and 2.21.1 was left at >= 1.5.9 but versions before 1.12 would result in a NameError exception. [#266]

2.21.1 / 2023-05-10

Fixed

• Don't define HTML5::Document and HTML5::DocumentFragment when Nokogiri is < 1.14. In 2.21.0 these classes were defined whenever Nokogiri::HTML5 was defined, but Nokogiri v1.12 and v1.13 do not support Loofah subclassing properly.

2.21.0 / 2023-05-10

HTML5 Support

Classes Loofah::HTML5::Document and Loofah::HTML5::DocumentFragment are introduced, along with helper methods:

• Loofah.html5_document
• Loofah.html5_fragment
• Loofah.scrub_html5_document
• Loofah.scrub_html5_fragment

These classes and methods use Nokogiri's HTML5 parser to ensure modern web standards are used.

⚠ HTML5 functionality is only available with Nokogiri v1.14.0 and higher.

⚠ HTML5 functionality is not available for JRuby. Please see this upstream Nokogiri issue if you're interested in helping implement and support HTML5 support.

Loofah::HTML4 module and namespace

Loofah::HTML has been renamed to Loofah::HTML4, and Loofah::HTML is aliased to preserve backwards-compatibility. Nokogiri::HTML and Nokogiri::HTML4 parse methods still use libxml2's (or NekoHTML's) HTML4 parser.

... (truncated)

Commits

• 992b054 version bump to v2.21.4
• 5d9a22f Merge pull request #273 from flavorjones/flavorjones-css-whitespace-handling
• 876116e fix: scrub_css is more consistent with whitespace
• edde5f2 Merge pull request #274 from flavorjones/flavorjones-bump-hoe-markdown
• fe6238a ci: run github action weekly
• dfff00d dep: bump hoe-markdown for ruby 3.3 ci
• e34118a version bump to v2.21.3
• 5c4a567 Merge pull request #268 from dharamgollapudi/patch-1
• 0189e43 fix: quash uninitialized instance variable warning
• 712067b version bump to v2.21.2
• Additional commits viewable in compare view

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[dependabot]

Superseded by #966.