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Cursor horizontal absolute (CHA)
ESC [ N GCHA moves the cursor to an absolute column on the current row. The sequence is
ESC [ N G where N is the 1-based column number (default 1). Unlike CUP, this only changes the horizontal position, leaving the row unchanged.How this is testedautomated
Write "ABCDE" then send
Write "ABCDE" then send
\x1b[3G (CHA), verify cursor column is 2 (0-based).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 Modern TUI baseline.
Supported by 13 of 14 backends (93%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ✓ yes | |
| Ghostty | 1.3.1 | ✓ yes | |
| VS Code | ✓ yes | ||
| Warp | ✓ yes | ||
| Cursor | ✓ yes | ||
| Terminal.app | ✓ yes |