eclipse-theia/theia

Emojis cause incorrect displaying of the terminal

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#7,579 opened on Apr 15, 2020

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 (13 comments) (0 reactions) (0 assignees)TypeScript (18,676 stars) (2,478 forks)batch import
:thinking: needs more infobughelp wantedterminal

Description

Description

Emojis are displayed incorrectly.

Reproduction Steps

  1. Try to paste 😀 into GNOME Terminal and Theia's terminal: GNOME: image Theia: image

OS and Theia version: OS: Ubuntu 19.10 Default shell: zsh 5.7.1 Theia: master

Diagnostics:

I use zsh shell with oh-my-zsh, maybe it's related, but it's used in GNOME Terminal too.

Contributor guide

Tech stack
typescript
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
None
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Investigate the terminal rendering code, likely in the `@theia/terminal` package. Check how Unicode characters are handled, especially emoji width. Review related comments for any suggested fixes or approaches.