feat: add support for LaTeX inline math replacement in MarkdownDecoder - #21
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feat: add support for LaTeX inline math replacement in MarkdownDecoder#21fazliddin-swe wants to merge 1 commit into
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Thanks a lot for kicking this off, @ibragimov05! 🙏 Inline LaTeX math ships in #23 (0.0.9). It was reimplemented so that it is code-span/code-block safe and does not touch currency like |
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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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…uite + coverage (#23) * feat: GitHub alerts, task lists, table alignment + parser fixes & tests New syntax - GitHub alert blocks (> [!NOTE]/[!TIP]/[!IMPORTANT]/[!WARNING]/[!CAUTION]) via a new MD$Alert block, MD$AlertType, and BlockPainter$Alert. - Task-list items (- [ ] / - [x]) via MD$ListItem.checked/isTask, rendered with a checkbox. - Table column alignment (:---, :--:, ---:) captured on MD$Table.alignments and applied when rendering. - Guarded $...$ inline LaTeX-to-Unicode math (code-span/code-block safe; currency like $5 preserved). Reworks PR #21 into a robust form. Theme - Adopt linkStyle (PR #22) cleanly; add per-type alert colors (alertColors / alertColorFor). - Fix MarkdownThemeData.copyWith dropping builder and onLinkTap. Parser correctness fixes (from an adversarial bug hunt) - Emphasis no longer leaks to end-of-line for stray/unterminated markers (5 * 6 = 30, **oops) and no longer treats intraword _ as emphasis (snake_case, object_id) — CommonMark-inspired flanking + closer checks. - Thematic breaks support ***, ___ and spaced variants; --- no longer greedily swallows trailing text. - ATX headings require a space after #, reject 7+ #, and strip trailing #. - ~~~ fenced code blocks recognized alongside ```. - Emphasis surrounding a link/image is merged onto the link span. - Link/image targets support <url> and single-quoted titles. Tests - Add 153 tests across parser (inline, block, gfm, edge cases), theme, and widget rendering; total suite now 215 and green (was 62). BREAKING: MD$Block.map/maybeMap gain an `alert` branch for MD$Alert. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * Add comprehensive tests for Markdown parser functionality - Introduced a golden characterization test to capture the exact structural output of the Markdown parser, ensuring stability against future changes. - Created a regression test suite targeting edge cases and performance-related changes in the parser, documenting specific behaviors and invariants. - Updated the unit test runner to include new test files for block parsing, inline parsing, GitHub Flavored Markdown (GFM), and edge cases. - Added a variety of test cases covering prose, emphasis, links, images, lists, tables, and more to ensure robust parsing behavior. * feat: make inline LaTeX math opt-in and configurable + improvements Inline `$...$` math is now DISABLED by default, so literal dollar signs (prices like `$5`, shell variables like `$HOME`) are never altered. Enable it with `MarkdownDecoder(inlineMath: true)` or `Markdown.fromString(text, inlineMath: true)`. Improvements to the math feature: - Configurable command table via `mathReplacements`; the defaults are exported as `kMarkdownMathCommands` so callers can extend rather than replace them. - Superscript/subscript conversion: `x^2` -> x², `H_2O` -> H₂O, `x^{10}` -> x¹⁰, `a_i` -> aᵢ. Unmappable runs are left literal. - More commands (implies/iff, perp/parallel, oplus/otimes, hbar/ell, Re/Im, therefore/because, extra arrows and relations). - `\$` is now a recognized escape (literal dollar); an escaped opening `$` never starts a math run, so `\$\alpha\$` stays literal `$\alpha$`. Making math opt-in also speeds up the default parse path (it no longer calls the math pass at all): escapes-heavy text is now ~68% faster than baseline. Tests: new test/parser/math_test.dart (commands, super/subscripts, code protection, escaping, configurability, span integrity). The golden snapshot is regenerated to reflect the new default (only the two math entries changed). Co-authored-by: Fazliddin <faz.ibragimovv@gmail.com> Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * docs: credit #22/#21 contributors in changelog Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * test: cover phase-1 escape/link edges and unterminated math brace Bring parser.dart line coverage to 99.6% (the remaining two lines are an unreachable defensive branch in the list-traverse). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * test: cover nodes, theme, and widget to 100% line coverage Add nodes_test.dart (MD$Style helpers, block type/toString/maybeMap, MD$ListItem/MD$TableRow, Markdown facade), extend theme_test.dart (headingStyleFor, type/toString, MarkdownTheme.of/maybeOf), and add widget_test.dart (context theme fallback in create/updateRenderObject). nodes.dart, markdown.dart, theme.dart, widget.dart now at 100%; parser.dart 99.6%. render.dart left untouched pending its refactor. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * docs: expand README (GFM blocks, opt-in math), add codecov; release 0.1.0 - README: document GitHub alerts, task lists, table alignment, thematic breaks and opt-in inline math; refresh feature list and performance section. - Add a Codecov coverage badge and a CI upload step (codecov-action). - Bump version 0.0.9 -> 0.1.0 and retitle the CHANGELOG section. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Mike Matiunin <plugfox@gmail.com> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Co-authored-by: Fazliddin <faz.ibragimovv@gmail.com>
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