[Bug] language:markdown italic error

描述

Language:markdown

_italic_
$a_{1}$:expect normal but italic$b_{1}$
$a_{1}$:normal$b$
*italic*

貢獻者指南

技術棧

typescript

領域

frontend

議題類型

bug

難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。

3

預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。

half day

活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。

stale

清晰度議題是否清楚說明預期改動、驗收標準和下一步。

mostly clear

前置要求

Knowledge of TextMate grammarsFamiliarity with monaco editor's tokenizer

新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。

50

研究方向

The issue is that underscores inside math formulas ($...$) are incorrectly rendered as italic in markdown. The fix likely involves modifying the markdown language grammar (e.g., markdown.tmLanguage.json or monarch tokenizer rules) to disable italic inside math environments. Look at the existing grammar files in src/language/markdown/, particularly the tokenizer rules for ` ` and `*`. Investigate how math formulas are tokenized and ensure that underscores inside $...$ are not treated as emphasis markers. Test with the provided example after making changes.