fix(x-markdown): fix CJK bold **…** not rendering when adjacent to … - #2039
fix(x-markdown): fix CJK bold **…** not rendering when adjacent to …#2039cactuser-Lu wants to merge 3 commits into
**…** not rendering when adjacent to …#2039Conversation
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Included review availability: Your plan provides up to 8 included reviews per hour; 7 remain after this review. 📝 WalkthroughWalkthrough本次变更为强调边界生成冲突安全的占位符。Parser 检查源内容中的占位符序列。测试覆盖 CJK 粗体、嵌套强调、代码、流式解析、哨符和三重强调。 ChangesCJK 粗体解析
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The fix improves punctuation-adjacent CJK bold rendering, but a specific link URL containing the private-use character U+E002 may be rewritten incorrectly in the default rendering path. The PR is mergeable with explicit owner awareness or follow-up to preserve that URL behavior. Suggested reviewers: Poem
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 2 files. ✨ Finishing Touches🧪 Generate unit tests (beta)
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Bundle ReportChanges will decrease total bundle size by 1.21MB (-20.74%) ⬇️. This is within the configured threshold ✅ Detailed changes
Affected Assets, Files, and Routes:view changes for bundle: x-markdown-array-pushAssets Changed:
view changes for bundle: antdx-array-pushAssets Changed:
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Actionable comments posted: 2
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Inline comments:
In `@packages/x-markdown/src/XMarkdown/core/Parser.ts`:
- Around line 393-411: Update the parsing flow around relaxEmphasis and
stripEmphasisBoundary to protect original U+E002 characters before
preprocessing, remove only the internally inserted emphasis sentinels, and
restore the protected user characters in the final output. Add a regression test
that parses input containing U+E002 and verifies it is preserved.
- Around line 317-330: Update relaxEmphasis so its delimiter matches cannot
begin inside a triple emphasis delimiter: require the double delimiter not to be
immediately preceded by the same delimiter character, while preserving current
punctuation checks. Add regression tests covering ***"加粗"*** and ___
equivalents, verifying no U+E002 boundary is inserted within the triple
delimiters and marked parsing remains unchanged.
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I reviewed exact head 55f56ecd9d27c6fad5de7cdea7db3ae7ec0a45ec and found a data-loss blocker in the sentinel strategy.
stripEmphasisBoundary() removes every U+E002 from the final HTML, including genuine U+E002 characters that were already present in user-authored Markdown. The removal is unconditional and has no way to distinguish an inserted boundary from original content. An isolated probe using this head's exact two regex replacements, Marked 15.0.12, and final /\uE002/g removal turns before\uE002after into <p>beforeafter</p>. PUA text is uncommon but valid, and a Markdown parser should not silently delete source characters.
Please make the temporary marker collision-safe—for example, protect and restore original occurrences through a per-parse placeholder map, or avoid a globally stripped source character—and commit a regression proving genuine U+E002 round-trips.
There is also a submitted-test failure on the current head: the new ASCII-quote case expects <strong>"加粗"</strong>, while this Parser's configured renderer currently produces <strong>"加粗"</strong>. The remote test job reproduces that exact mismatch at Parser.test.ts:243 (330 passing tests, one failing in the package). The expectation should follow the public parser output unless escaping is itself an intentional separately justified change.
AI assistance disclosure: Codex was used to inspect the exact diff and CI log and to run the isolated sentinel round-trip probe; I verified the source transformation and output.
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Actionable comments posted: 1
🤖 Prompt for all review comments with AI agents
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Inline comments:
In `@packages/x-markdown/src/XMarkdown/core/Parser.ts`:
- Around line 431-434: 更新 protectEmphasisBoundary 与 restoreEmphasisBoundary
的占位符生成和恢复逻辑，确保生成值不会与输入中的 PUA 字符或已有占位符冲突，并且经过 marked 默认 Renderer.link 的
cleanUrl/encodeURI 后仍可被 EMPH_USER_PLACEHOLDER_REGEX
识别和恢复。复用现有占位符相关常量与映射机制，新增覆盖这两类冲突及 URL 编码场景的回归测试。
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Re-reviewed exact updated head b695d9fd61833a3c57a9705ee68786ade5435b61. The prior unconditional U+E002 deletion and ASCII-quote expectation are fixed, and the focused Parser suite now passes 40/40.
One collision still causes source-data corruption. protectEmphasisBoundary() always begins generated keys at the public literal U+E000 + X_MD_EB_0 + U+E001 without checking whether that sequence already exists in the Markdown. If the input contains that valid PUA sequence and a genuine U+E002, the inserted key collides with the user text; restoreEmphasisBoundary() then rewrites both occurrences.
Exact-head probe:
input: U+E000 X_MD_EB_0 U+E001 U+E002
output: <p>U+E002 U+E002</p>
The original U+E000 X_MD_EB_0 U+E001 sequence is lost. A longer input shows the same replacement in surrounding text. Please generate a placeholder that is absent from the complete source (advancing the counter until unused is sufficient), and add a round-trip regression containing both a pre-existing placeholder-shaped sequence and U+E002.
The current remote red test is separate: all x-markdown tests pass there, while an unrelated Suggestion demo snapshot fails. My local focused Parser result is 40/40; the collision probe above is independent of that CI state.
Disclosure: Codex assisted with exact-head source tracing, test execution, and drafting; I verified the collision input and output directly.
2 participants
closes #2038
marked 严格遵循 CommonMark flanking 规则，当
**/__紧邻标点（引号、括号等）时保持字面渲染，导致中文/日文/韩文环境下大量常见输出无法加粗：如 写作**"加粗"**表示🔧 实现 / Implementation
在
Parser.relaxEmphasis中预处理：**/__紧邻标点 → 分隔符后插入 PUA 哨兵\uE002**/__→ 标点与分隔符之间插入同一哨兵marked解析时把哨兵当作"非标点、非空白"处理，flanking 判定通过 → 正常生成<strong>stripEmphasisBoundary统一剥离所有哨兵🤔 This is a ...
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**…**not rendering when adjacent to punctuationSummary by CodeRabbit