Build, test, and debug regular expressions
Matches Unix ANSI/VT100 terminal escape sequences beginning with the ESC character (\u001b), covering single-char commands (7, 8, H, >), DEC private modes (?25h/l), cursor movement (A/B/C/D), erase line/display (K/J), and SGR color codes with 1-3 numeric parameters. Useful for stripping or parsing terminal control codes from logs, CLI output, or captured terminal sessions.