highlightjs/highlight.js

(C#) Support digit separators

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#4,258 建立於 2025年5月9日

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 (2 留言) (0 反應) (0 負責人)JavaScript (22,960 star) (3,497 fork)batch import
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描述

Describe the issue Digit separators are not supported: if you write 20_000_000 for example, 20 will be number-colored, while _000_000 will be treated as invalid.

Which language seems to have the issue? C#

Are you using highlight or highlightAuto? highlight

Sample Code to Reproduce

int i = 20_000_000;

Screenshot of broken syntax highlighting

Expected behavior the entirety of the number to be highlighted as a number, like on GitHub: Screenshot of correct syntax highlighting

Additional context None

貢獻者指南

技術棧
csharpjavascript
領域
developer experience
議題類型
feature
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。
2
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。
1-3 hours
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。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
Basic knowledge of C#Understanding of highlight.js language grammar
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。
75
研究方向
Examine the C# language definition file (likely src/languages/csharp.js). The current number pattern does not include digit separators (underscore). Modify the regular expression to allow underscores between digits, e.g., /\d( ?\d)*/. Test with the sample code '20 000 000'. Ensure other numeric formats (hex, binary, etc.) also support separators if applicable.