xtermjs/xterm.js

Support DECBKM to remap backspace <-> delete

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#3,041 创建于 2020年8月14日

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 (6 评论) (0 反应) (0 负责人)TypeScript (16,196 star) (1,574 fork)batch import
good first issuehelp wantedtype/enhancement

描述

DECBKM to remap Backspace, Escape and Delete to their respective codes is not working at all. Quickly looking through code DECBKM is set to reset by default according to...

https://vt100.net/docs/vt510-rm/DECBKM.html

DEL issues an ESC keycode 27... which I now realise is not issuing the keycode but an ANSI sequence ESC issues keycode 27 Backspace issues keycode 127

This is troubling when you are trying to isolate what key is actually being pressed. And other odd behaviour when trying to parse things.

Code Sample

https://repl.it/@KelvinVerhey/decbkm-issue

Details

  • Chrome/Firefox/IE
  • Windows 10 Pro
  • xterm.js version: dunno... whatever repl.it is using

Question

https://stackoverflow.com/questions/63405913/xterm-js-decbkm-support-for-del-and-backspace

贡献者指南

技术栈
typescript
领域
frontendtooling
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
VT100 escape sequencesxterm.js codebase
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
55
研究方向
Investigate the current implementation of DECBKM in the xterm.js source code, likely in the escape sequence parser (src/InputHandler.ts). Understand how the backspace and delete keys are mapped. Refer to the VT510 specification (vt100.net) for correct behavior. The issue includes a code sample that demonstrates the problem.