mirror of
https://github.com/microsoft/terminal.git
synced 2026-03-10 01:00:48 -04:00
3b8c5606ee
This PR introduces `compatibility.ambiguousWidth` as a **global** compatibility setting (`narrow` default, `wide` optional). The default remains `narrow`. Why global-only in this PR: - Width detection is currently process-wide (`CodepointWidthDetector` singleton). - True profile-level ambiguous-width behavior would require broader architectural changes and is intentionally deferred to a follow-up design/PR. What this PR guarantees: - Terminal-side handling is consistent end-to-end for the selected ambiguous-width policy (rendering path + ConPTY/host propagation). Known limitation: - Some client applications (for example PSReadLine/readline-based apps) may still compute character widths independently. - In such cases, cursor movement or Backspace behavior can differ from visual cell width even when terminal-side policy is consistent. This is a compatibility/readability trade-off feature: - `narrow`: prioritize cross-application compatibility. - `wide`: prioritize readability with many CJK fonts. Closes #153 Closes #370 Refs #2928 Refs #2049, #2066, #2375, #900, #5910, #5914 Co-authored-by: Leonard Hecker <lhecker@microsoft.com>