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Answer: How do you simulate the use of the keyboard ?

by merlyn (Sage)
on May 11, 2000 at 01:05 UTC ( #11058=categorized answer: print w/replies, xml ) Need Help??

Q&A > input and output > How do you simulate the use of the keyboard ? - Answer contributed by merlyn

Depends on what you mean by "simulate". One way to mean it is to force a "y\n" into your own tty input buffer, like so:
sub jam { $TIOCSTI = 0x80017472; for (split(//, $_[0])) { ioctl(STDERR, $TIOCSTI, $_) || die "bad TIOCSTI: $!"; } } jam("y\n");
Note that the value of TIOCSTI can be had from some "use something" that escapes me at the moment, but it'll end up looking like this pretty close.

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Re: Answer: How do you simulate the use of the keyboard ?
by Anonymous Monk on Sep 25, 2003 at 12:00 UTC
    I have the above working for ordinary input (i.e. ascii codes) but how could i simluate the use of arrows keys, for example in vi? These do not have a proper ascii code. Duncs
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