Bug: Heregex escaped space before comment includes comment in transpiled regex · jashkenas/coffeescript#5428

2022-10-13T15:20:58.000Z

### Input Code ```coffee /// a\ # this is a bug /// ``` ### Expected Behavior ```javascript // this is a bug /a /; ``` ### Current Behavior ```javascript // this is a bug /a #thisisabug/; ``` * CoffeeScript version: 2.7.0

(0 评论) (0 反应) (0 负责人)CoffeeScript (16,577 star) (1,980 fork)batch import

bughelp wanted

描述

Input Code

///
a\ # this is a bug
///

Expected Behavior

// this is a bug
/a /;

Current Behavior

// this is a bug
/a #thisisabug/;

CoffeeScript version: 2.7.0

贡献者指南

技术栈: 无
领域: backend
议题类型: bug
难度: 3
预计时间: 1-3 hours
活动状态: stale
清晰度: clear
前置要求: CoffeeScript basicsregex parsing concepts
新手友好度: 70
研究方向: Investigate the CoffeeScript compiler's heregex parsing logic. The bug is that an escaped space before a comment causes the comment to be included in the regex. Look at the code that handles whitespace and comments within heregexes. Possibly modify the lexer or parser to correctly ignore comments after escaped spaces. Files like `src/lexer.coffee` or `src/regex.coffee` might be relevant.