https://github.com/jrincayc/ucblogo-code
Tip revision: 68a93248641e91314d2700e8a3c6ba0c73ba5422 authored by Joshua J. Cogliati on 27 December 2021, 16:56:40 UTC
Updating version to 6.2.2pre1
Updating version to 6.2.2pre1
Tip revision: 68a9324
keyp
KEYP
KEY?
predicate, outputs TRUE if there are characters waiting to be
read from the read stream. If the read stream is a file, this
is equivalent to NOT EOFP. If the read stream is the terminal,
then echoing is turned off and the terminal is set to CBREAK
(character at a time instead of line at a time) mode. It
remains in this mode until some line-mode reading is requested
(e.g., READLIST). The Unix operating system forgets about any
pending characters when it switches modes, so the first KEYP
invocation will always output FALSE.