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copy bug #102
Description
within in the terminal when i select a block like this one
and then do CTRL+C and paste that somewhere else - for example notepad++ to illustrate the problem
it produces a lot of unneccessary whitespaces which destroys the formatting.
I guess a trim() is needed somewhere.
This is the part that is just too much and that i always have to cut manually for each line:
very annoying :D
Activity
amirlehmam commentedon Jul 18, 2026
Fixed in v0.27.1 — thanks for the clear report!
Root cause: ConPTY (the Windows console backend) repaints each line padded to the full terminal width with real space characters, so xterm's selection API returns them verbatim — it can't tell a typed space from pad cells. Windows Terminal trims line-end whitespace on copy for exactly this reason; wmux now does the same on both copy paths (Ctrl+C in the terminal and the copy shortcut). Indentation and interior spacing are untouched — only trailing spaces/tabs per line are stripped.
Grab the new build from the release page (or auto-update when available) and pasting into Notepad++ should be clean. 🙏
fix(terminal): trim ConPTY pad spaces from copied selections (fixes a…
feat(terminal): right-click copies the selection or pastes (#336)