Nico Weber 83c07be794 LibVT+LibLine: Use 1;mods CSI parameters for ctrl/alt/shift-arrow keys ...

xterms send a bitmask (+ 1) in the 2nd CSI parameter if "special"
keys (arrow keys, pgup/down, etc) are sent with modifiers held down.

Serenity's Terminal used to send ^[[O, which is a nonexistent
escape sequence and a misread of VT100's ^[O (ie the '[' is
replaced by 'O'). Since the xterm scheme also supports shift
and alt modifiers, switch to that.

More flexible, and makes ctrl-left/right and alt-left/right work
in SerenityOS's bash port.

Also do this for page up/down.

No behavior change for SerenityOS's Shell.

2020-09-15 09:45:13 +02:00

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