Appearance
Auto-wrap (DECAWM)
ESC [ ? 7 hDECAWM controls whether text automatically wraps to the next line when it reaches the right margin. Enable with
ESC [ ? 7 h (default on), disable with ESC [ ? 7 l. When disabled, characters written past the right margin overwrite the last column. Most terminals default to auto-wrap enabled.How this is testedautomated
Write 80+ characters, verify text wraps to the next row.
Write 80+ characters, verify text wraps to the next row.
The same probe runs against headless backends (via Termless) and real terminal apps (via a daemon launched in each terminal). This lets us distinguish parser correctness from rendering correctness.
Analysis2026-04-06
Supported by all 12 tested terminals — universal adoption. Part of the Core TUI baseline.
Supported by 14 of 14 backends (100%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ✓ yes | DECRPM: mode set |
| Ghostty | 1.3.1 | ✓ yes | DECRPM: mode set |
| VS Code | ✓ yes | ||
| Warp | ✓ yes | ||
| Cursor | ✓ yes | ||
| Terminal.app | ✓ yes |