Width / normalization
Rust
open
Zed block cursor is misaligned over ambiguous-width Unicode characters
editor: Center the block cursor glyph for ambiguous-width characters
zed · zed-industries/zed
Symptom
In Zed editor, the block cursor over Unicode ambiguous-width characters (East Asian Width 'A' category, e.g., some symbols, box-drawing) is misaligned — the cursor glyph is not centered in the cell.
Minimal repro
Open Zed with a CJK font; position cursor on an ambiguous-width character; block cursor appears shifted or misaligned.
Fix
Center the block cursor glyph using the rendered cell width rather than the glyph's intrinsic width for ambiguous-width characters.