xtermjs/xterm.js

Support DECSLRM (SMGLR, SMGLP, SMGRP) - Set Left and Right Margins for better scrolling performance in multi-pane TUIs

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#4,285 建立於 2022年12月2日

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area/parserhelp wantedtype/enhancement

描述

Ref. #2358

Also known as Set Left and Right Margins. This feature is used by terminal applications like tmux and (neo)vim to optimize pane scrolling. Real xterm supports it, many not-real-xterms don't, so Neovim patches out this functionality for xterm pretenders (which it tries to detect via the XTERM_VERSION environment variable).

Right now, forcing Neovim to use the smglr results in this: https://asciinema.org/a/Qcgm1znQy3nE8DnCc0jnrjXMi (versus not using them).

貢獻者指南

技術棧
typescript
領域
cliperformance
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。
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。
1-2 days
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。
clear
前置要求
Understand DECSLRM specificationFamiliarity with xterm.js parserAbility to test changes in terminal emulator
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。
55
研究方向
Review the DECSLRM specification at vt100.net and examine how xterm.js currently parses escape sequences. Look at the existing handling of similar margin or scrolling features in the codebase, likely in files like InputHandler.ts. The issue references #2358 for additional context. Test with terminal applications like tmux or neovim to verify correct behavior.