Galtzo FLOSS Logo by Aboling0, CC BY-SA 4.0 ruby-lang Logo, Yukihiro Matsumoto, Ruby Visual Identity Team, CC BY-SA 2.5 yard-fence Logo by Aboling0, CC BY-SA 4.0

🍲 Yard::Fence

Version GitHub tag (latest SemVer) License: MIT Downloads Rank CodeCov Test Coverage Coveralls Test Coverage QLTY Test Coverage QLTY Maintainability CI Heads CI Runtime Dependencies @ HEAD CI Current CI Truffle Ruby CI JRuby Deps Locked Deps Unlocked CI Test Coverage CI Style CodeQL Apache SkyWalking Eyes License Compatibility Check

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if ci_badges.map(&:color).all? { it == "green"} 👇️ send money so I can do more of this. FLOSS maintenance is now my full-time job.

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👣 How will this project approach the September 2025 hostile takeover of RubyGems? 🚑️ I've summarized my thoughts in [this blog post](https://dev.to/galtzo/hostile-takeover-of-rubygems-my-thoughts-5hlo).

🌻 Synopsis

A brace converter for the markdown fences in your YARD docs to prevent the InvalidLink warning.

Just the important bits:

  • Preprocesses top-level README and other .md/.txt files into tmp/yard-fence/ replacing ASCII braces inside fenced code blocks, inline code spans, and simple placeholders like {issuer} or {{TOKEN}} with visually identical fullwidth braces.
  • This prevents YARD from emitting InvalidLink warnings.
  • Prioritizes Kramdown's GFM parser so tables and fenced code blocks render correctly.
  • After YARD finishes generating HTML, restores fullwidth braces back to normal ASCII braces so code examples are copy‑pastable.
  • The supported workflow is rake yard; raw yard / bin/yard does not run the explicit prepare + postprocess hooks.

Create a .yardopts file like this:

--plugin fence
-e yard/fence/hoist.rb
--readme tmp/yard-fence/README.md
--charset utf-8
--markup markdown
--markup-provider kramdown
--output docs
'lib/**/*.rb'
-
'tmp/yard-fence/*.md'
'tmp/yard-fence/*.txt'

See the configuration and usage sections for more details.

💡 Info you can shake a stick at

Tokens to Remember Gem name Gem namespace
Works with JRuby JRuby current Compat JRuby HEAD Compat
Works with Truffle Ruby Truffle Ruby 24.2 Compat Truffle Ruby 25.0 Compat Truffle Ruby current Compat
Works with MRI Ruby 4 Ruby 4.0 Compat Ruby current Compat Ruby HEAD Compat
Works with MRI Ruby 3 Ruby 3.2 Compat Ruby 3.3 Compat Ruby 3.4 Compat
Support & Community Join Me on Daily.dev's RubyFriends Live Chat on Discord Get help from me on Upwork Get help from me on Codementor
Source Source on GitLab.com Source on CodeBerg.org Source on Github.com The best SHA: dQw4w9WgXcQ!
Documentation Current release on RubyDoc.info YARD on Galtzo.com Maintainer Blog GitLab Wiki GitHub Wiki
Compliance License: MIT Apache license compatibility: Category A 📄ilo-declaration-img Security Policy Contributor Covenant 2.1 SemVer 2.0.0
Style Enforced Code Style Linter Keep-A-Changelog 1.0.0 Gitmoji Commits Compatibility appraised by: appraisal2
Maintainer 🎖️ Follow Me on LinkedIn Follow Me on Ruby.Social Follow Me on Bluesky Contact Maintainer My technical writing
... 💖 Find Me on WellFound: Find Me on CrunchBase My LinkTree More About Me 🧊 🐙 🛖 🧪

Compatibility

Compatible with MRI Ruby 3.2.0+, and concordant releases of JRuby, and TruffleRuby.

🚚 Amazing test matrix was brought to you by 🔎 appraisal2 🔎 and the color 💚 green 💚
👟 Check it out! github.com/appraisal-rb/appraisal2

Federated DVCS

Find this repo on federated forges (Coming soon!) | Federated [DVCS][💎d-in-dvcs] Repository | Status | Issues | PRs | Wiki | CI | Discussions | |-------------------------------------------------|-----------------------------------------------------------------------|---------------------------|--------------------------|---------------------------|--------------------------|------------------------------| | 🧪 [galtzo-floss/yard-fence on GitLab][📜src-gl] | The Truth | [💚][🤝gl-issues] | [💚][🤝gl-pulls] | [💚][📜gl-wiki] | 🐭 Tiny Matrix | ➖ | | 🧊 [galtzo-floss/yard-fence on CodeBerg][📜src-cb] | An Ethical Mirror ([Donate][🤝cb-donate]) | [💚][🤝cb-issues] | [💚][🤝cb-pulls] | ➖ | ⭕️ No Matrix | ➖ | | 🐙 [galtzo-floss/yard-fence on GitHub][📜src-gh] | Another Mirror | [💚][🤝gh-issues] | [💚][🤝gh-pulls] | [💚][📜gh-wiki] | 💯 Full Matrix | [💚][gh-discussions] | | 🎮️ [Discord Server][✉️discord-invite] | [![Live Chat on Discord][✉️discord-invite-img-ftb]][✉️discord-invite] | [Let's][✉️discord-invite] | [talk][✉️discord-invite] | [about][✉️discord-invite] | [this][✉️discord-invite] | [library!][✉️discord-invite] |

Enterprise Support Tidelift

Available as part of the Tidelift Subscription.

Need enterprise-level guarantees? The maintainers of this and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source packages you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact packages you use. [![Get help from me on Tidelift][🏙️entsup-tidelift-img]][🏙️entsup-tidelift] - 💡Subscribe for support guarantees covering _all_ your FLOSS dependencies - 💡Tidelift is part of [Sonar][🏙️entsup-tidelift-sonar] - 💡Tidelift pays maintainers to maintain the software you depend on!
📊`@`Pointy Haired Boss: An [enterprise support][🏙️entsup-tidelift] subscription is "[never gonna let you down][🧮kloc]", and *supports* open source maintainers Alternatively: - [![Live Chat on Discord][✉️discord-invite-img-ftb]][✉️discord-invite] - [![Get help from me on Upwork][👨🏼‍🏫expsup-upwork-img]][👨🏼‍🏫expsup-upwork] - [![Get help from me on Codementor][👨🏼‍🏫expsup-codementor-img]][👨🏼‍🏫expsup-codementor]

✨ Installation

Install the gem and add to the application's Gemfile by executing:

bundle add yard-fence

If bundler is not being used to manage dependencies, install the gem by executing:

gem install yard-fence

⚙️ Configuration

Yard::Fence writes sanitized copies of top-level Markdown/TXT into tmp/yard-fence/ during the rake-based YARD workflow. To avoid YARD parsing the unsanitized originals, point YARD at the tmp/yard-fence/ copies.

Recommended .yardopts (noise-free) for the rake-based workflow:

--plugin fence
-e yard/fence/hoist.rb
--readme tmp/yard-fence/README.md
--charset utf-8
--markup markdown
--markup-provider kramdown
--output docs
'lib/**/*.rb'
-
'tmp/yard-fence/*.md'
'tmp/yard-fence/*.txt'

Why tmp/yard-fence/?

  • The plugin converts ASCII { } to fullwidth { } only in tmp/yard-fence/ so YARD won't treat brace content as reference tags and emit InvalidLink warnings. After docs are generated, the HTML is restored back to normal ASCII braces for easy copy/paste.

Environment Variables

Variable Default Description
YARD_FENCE_DISABLE false Set to true to disable all yard-fence processing
YARD_FENCE_CLEAN_DOCS false Set to true to clear docs/ directory before regeneration (prevents stale files)
YARD_DEBUG false Set to true to enable debug output

Preventing Stale Files

When markdown files are removed from your project, their corresponding HTML files may remain in docs/. To ensure a clean build:

# Option 1: Use the YARD_FENCE_CLEAN_DOCS environment variable
YARD_FENCE_CLEAN_DOCS=true bundle exec rake yard

# Option 2: Manually clear the docs directory before running yard
rm -rf docs/ && bundle exec rake yard

The tmp/yard-fence/ staging directory is always cleared automatically before regeneration to prevent stale preprocessed files.

🔧 Basic Usage

Use the rake integration, not raw yard, so the prepare + postprocess steps run around the YARD build:

require "yard"
require "yard/fence"

YARD::Rake::YardocTask.new(:yard) { |t| t.files = [] }
Yard::Fence.install_rake_tasks!(:yard)

Then build docs with:

bundle exec rake yard

If your project exposes bin/yard, treat it the same as raw yard: it runs YARD itself, but it does not run Yard::Fence.install_rake_tasks!(:yard). Use bundle exec rake yard whenever tmp/yard-fence/ staging is part of the setup.

🦷 FLOSS Funding

While galtzo-floss tools are free software and will always be, the project would benefit immensely from some funding. Raising a monthly budget of... "dollars" would make the project more sustainable.

We welcome both individual and corporate sponsors! We also offer a wide array of funding channels to account for your preferences. Currently, Open Collective is our preferred funding platform.

If you're working in a company that's making significant use of galtzo-floss tools we'd appreciate it if you suggest to your company to become a galtzo-floss sponsor.

You can support the development of galtzo-floss tools via GitHub Sponsors, Liberapay, PayPal, Open Collective and Tidelift.

📍 NOTE
If doing a sponsorship in the form of donation is problematic for your company
from an accounting standpoint, we'd recommend the use of Tidelift,
where you can get a support-like subscription instead.

Open Collective for Individuals

Support us with a monthly donation and help us continue our activities. [Become a backer]

NOTE: kettle-readme-backers updates this list every day, automatically.

No backers yet. Be the first!

Open Collective for Organizations

Become a sponsor and get your logo on our README on GitHub with a link to your site. [Become a sponsor]

NOTE: kettle-readme-backers updates this list every day, automatically.

No sponsors yet. Be the first!

Another way to support open-source

I’m driven by a passion to foster a thriving open-source community – a space where people can tackle complex problems, no matter how small. Revitalizing libraries that have fallen into disrepair, and building new libraries focused on solving real-world challenges, are my passions. I was recently affected by layoffs, and the tech jobs market is unwelcoming. I’m reaching out here because your support would significantly aid my efforts to provide for my family, and my farm (11 🐔 chickens, 2 🐶 dogs, 3 🐰 rabbits, 8 🐈‍ cats).

If you work at a company that uses my work, please encourage them to support me as a corporate sponsor. My work on gems you use might show up in bundle fund.

I’m developing a new library, floss_funding, designed to empower open-source developers like myself to get paid for the work we do, in a sustainable way. Please give it a look.

Floss-Funding.dev: 👉️ No network calls. 👉️ No tracking. 👉️ No oversight. 👉️ Minimal crypto hashing. 💡 Easily disabled nags

OpenCollective Backers OpenCollective Sponsors Sponsor Me on Github Liberapay Goal Progress Donate on PayPal Buy me a coffee Donate on Polar Donate to my FLOSS efforts at ko-fi.com Donate to my FLOSS efforts using Patreon

🔐 Security

See SECURITY.md.

🤝 Contributing

If you need some ideas of where to help, you could work on adding more code coverage, or if it is already 💯 (see below) check issues or PRs, or use the gem and think about how it could be better.

We Keep A Changelog so if you make changes, remember to update it.

See CONTRIBUTING.md for more detailed instructions.

🚀 Release Instructions

See CONTRIBUTING.md.

Code Coverage

Coverage service badges [![Coverage Graph][🏀codecov-g]][🏀codecov] [![Coveralls Test Coverage][🏀coveralls-img]][🏀coveralls] [![QLTY Test Coverage][🏀qlty-covi]][🏀qlty-cov]

🪇 Code of Conduct

Everyone interacting with this project's codebases, issue trackers, chat rooms and mailing lists agrees to follow the Contributor Covenant 2.1.

🌈 Contributors

Contributors

Made with contributors-img.

Also see GitLab Contributors: https://gitlab.com/galtzo-floss/yard-fence/-/graphs/main

⭐️ Star History Star History Chart

📌 Versioning

This library follows Semantic Versioning 2.0.0 for its public API where practical. For most applications, prefer the Pessimistic Version Constraint with two digits of precision.

For example:

spec.add_dependency("yard-fence", "~> 0.0")
📌 Is "Platform Support" part of the public API? More details inside. Dropping support for a platform can be a breaking change for affected users. If a release changes supported platforms, it should be called out clearly in the changelog and versioned with that impact in mind. To get a better understanding of how SemVer is intended to work over a project's lifetime, read this article from the creator of SemVer: - ["Major Version Numbers are Not Sacred"][📌major-versions-not-sacred]

See CHANGELOG.md for a list of releases.

📄 License

The gem is available as open source under the terms of the MIT License: MIT.

See LICENSE.md for the official copyright notice.

Copyright holders - Copyright (c) 2025-2026 Peter H. Boling

🤑 A request for help

Maintainers have teeth and need to pay their dentists. After getting laid off in an RIF in March, and encountering difficulty finding a new one, I began spending most of my time building open source tools. I'm hoping to be able to pay for my kids' health insurance this month, so if you value the work I am doing, I need your support. Please consider sponsoring me or the project.

To join the community or get help 👇️ Join the Discord.

Live Chat on Discord

To say "thanks!" ☝️ Join the Discord or 👇️ send money.

Sponsor galtzo-floss/yard-fence on Open Source Collective 💌 Sponsor me on GitHub Sponsors 💌 Sponsor me on Liberapay 💌 Donate on PayPal

Please give the project a star ⭐ ♥.

Thanks for RTFM. ☺️

Field Value
Package yard-fence
Description 🍲 Convert ASCII braces ('{}') to full-width braces ('{}') within code fences (triple-or-single backticks) during YARD processing, and back to ASCII braces afterward
Homepage https://github.com/galtzo-floss/yard-fence
Source https://github.com/galtzo-floss/yard-fence/tree/v0.9.0
License MIT
Funding https://github.com/sponsors/pboling, https://issuehunt.io/u/pboling, https://ko-fi.com/pboling, https://liberapay.com/pboling/donate, https://opencollective.com/galtzo-floss, https://patreon.com/galtzo, https://polar.sh/pboling, https://thanks.dev/u/gh/pboling, https://tidelift.com/funding/github/rubygems/yard-fence, https://www.buymeacoffee.com/pboling