Re: kern/56223 (some vt codes result in blank console)

[mlelstv%serpens.de@localhost (Michael van Elst)]

The following reply was made to PR kern/56223; it has been noted by GNATS.

From: mlelstv%serpens.de@localhost (Michael van Elst)
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/56223 (some vt codes result in blank console)
Date: Fri, 4 Jun 2021 22:02:17 -0000 (UTC)

 david%gutteridge.ca@localhost ("David H. Gutteridge") writes:
 
 > I've placed the reproducer file at
 > http://www.netbsd.org/~gutteridge/PR56223_reproducer.txt
 
 That output ESC + ] starts an escape sequence that never ended. The parser
 just continues reading characters that don't cause something rendered as
 these belong to a very long sequence.
 
 You can finish the sequence by emitting the characters ESC and \.
 
 The same happens for ESC + ^ and ESC + _.
 
         case ']': /* OSC operating system command */
         case '^': /* PM privacy message */
         case '_': /* APC application program command */
                 /* ignored */
                 return VT100_EMUL_STATE_STRING;