Problem description

Printing a specific file to terminal freezes and crashes Termux. The file is valid UTF-8 but contains large amounts of various invisible Unicode characters, including zero-width spaces, word joiners, variant selectors, etc.

Steps to reproduce the behavior.

1. Download https://kimapr.net/lappy/matroska.js
2. Print it to the terminal using cat or similar

What is the expected behavior?

Termux does not freeze or crash

System information

• Termux application version: 0.118.0
• Android OS version: 11
• Device model: TECNO Spark 8C KG5j