Bug fix

• Fix MatchError: Paragraph(...) in DefinitionListBlock rendering. The
  renderer was calling the public renderToHTML(node, config) on each
  definition body, but that entry point only handles Document and
  threw a MatchError for the Paragraph every parsed definition body
  actually contains. Now goes through renderBlockToHTML directly,
  which handles all Block subtypes uniformly. Regression test added
  in DefinitionListBlockParserTest.

Tests

• 995 / 995 passing across JVM / JS / Native, including all 652
  CommonMark 0.31.2 spec tests.

Full changelog: v0.4.3...v0.4.4

Highlights

• New: auto-generated heading IDs. Set MarkdownConfig.autoHeadingIds = true to have every <hN> get an id attribute slugified from its text content. The slugify function is pluggable; the default matches Hugo / mkdocs / GitHub.
• New: AST-consumer helpers. Document.headings, public renderInlines, public plainText — the bits TOC builders, anchor-text generators, and search-index excerpters keep reinventing.
• New: npm package @edadma/markdown. The linked Scala.js bundle plus full TypeScript typings, exposing renderToHTML / extractHeadings / plainText / version. ESM, types pointer, drop-in for any JS / TS project.
• Fix: setext heading vs fenced code precedence. A line that opens a fenced code block (```` or ~~~) is no longer incorrectly claimed as a setext heading when the next line is `---`. Surfaced when feeding YAML-style frontmatter inside fenced examples to the parser.
• Fix: String.replace("\\u0000", ...) on Scala Native. The CharSequence overload couldn't handle the null byte (C-string terminator). Now uses the (Char, Char) overload — Native test suite is fully green for the first time.
• Bump: cross_platform 0.1.3 → 0.1.6 (transitive); plugin / sbt refresh.

Test sweep

994 / 994 active green on JVM, Scala.js, and Scala Native. All 652 official CommonMark 0.31.2 spec tests still pass plus the expanded local suite (helpers, auto heading IDs, setext-vs-fence regressions).

Install

Scala (sbt)

libraryDependencies += "io.github.edadma" %%% "markdown" % "0.4.3"

JavaScript / TypeScript (npm)

npm install @edadma/markdown

Highlights

• Doc-tag extension (opt-in): @name [target] — body block-level annotations for API documentation tooling. Configurable per-tag via a TagRegistry with acceptsTarget flag and ContentMode (Opaque/InlineMarkdown/BlockMarkdown). Unknown tags fall back to plain text in strict mode or emit lenient DocTagBlock nodes by default.
• Footnotes (opt-in): [^label] references with [^label]: ... definitions. Backref link injection; numbered by first-reference order.
• Smart punctuation (opt-in): curly quotes, en/em dashes, ellipsis.
• Attributes / spans (opt-in): {#id .class key=value} on headings, fenced blocks, images.

Toolchain

• Upgraded to Scala 3.8.3 and sbt 1.12.8.

Conformance

All 877 CommonMark 0.31.2 spec tests continue to pass.

Full CommonMark 0.31.2 Spec Compliance

All 877 spec tests passing across all 25 sections — 100% CommonMark 0.31.2 compliance.

Highlights

• HTML block parser rewrite: proper type 1–7 classification with correct start/end conditions
• List items: empty item blank line handling, tight list rendering fixes
• Lists: loose/tight detection accounts for consumed link reference definitions
• Emphasis: Unicode whitespace/punctuation classification, delimiter skip fix
• Links: link-in-link detection prevents invalid nesting per spec
• Inline parsing: findOpener correctly stops at first [/! delimiter regardless of active status

New Features

• Syntax highlighting support for fenced and indented code blocks via pluggable highlighter function

Changes

• Build toolchain update: Scala 3.8.2, sbt 1.12.4, Scala.js 1.20.2, Scala Native 0.5.10, Sonatype Central publishing
• Code.indented field: Distinguish indented code blocks from fenced code blocks in the AST
• CollapsibleBlock inline titles: Title is now List[Inline] for inline formatting support (bold, links, etc.)
• Bug fixes: Indented code block whitespace preservation, loose list item rendering
• Spec compliance: Added CommonMark spec tests for indented code blocks and paragraphs
• Dependencies: cross_platform 0.1.3, scalafmt 3.10.7