Keyboard input/Flush the keyboard buffer: Difference between revisions
Keyboard input/Flush the keyboard buffer (view source)
Revision as of 12:21, 14 March 2020
, 4 years agoRename Perl 6 -> Raku, alphabetize, minor clean-up
(Added Commodore BASIC) |
Thundergnat (talk | contribs) (Rename Perl 6 -> Raku, alphabetize, minor clean-up) |
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Put_Line (Get_Line);
end Flushtest;</lang>
=={{header|AWK}}==
<lang AWK>
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_STD_conio();
}</lang>
=={{header|DCL}}==
<lang>$ wait 0::10 ! gives us 10 seconds to get keystrokes into the type-ahead buffer
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<lang Euphoria>while get_key()!=-1 do
end while</lang>
=={{header|FreeBASIC}}==▼
<lang freebasic>' FB 1.05.0 Win64▼
' Get characters from the keyboard buffer until there are none left▼
While Inkey <> "" : Wend ▼
Print "Keyboard buffer flushed"▼
Sleep</lang>▼
=={{header|Go}}==
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}
</lang>
▲=={{header|FreeBASIC}}==
▲<lang freebasic>' FB 1.05.0 Win64
▲' Get characters from the keyboard buffer until there are none left
▲While Inkey <> "" : Wend
▲Print "Keyboard buffer flushed"
▲Sleep</lang>
=={{header|Haskell}}==
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end
</lang>
=={{header|Kotlin}}==
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# Don't forget to restore the readmode, when we are finished using the keyboard
ReadMode 'restore';</lang>
=={{header|Perl 6}}==▼
{{works with|Rakudo|2018.12}}▼
Using termios to set some input attributes, flush the buffer & do unbuffered reads. Longer than strictly necessary to demonstrate concepts and make it easy to verify that it actually works as advertised. ▼
<lang perl6>use Term::termios;▼
constant $saved = Term::termios.new( :fd($*IN.native-descriptor) ).getattr;▼
constant $termios = Term::termios.new( :fd($*IN.native-descriptor) ).getattr;▼
# set some modified input flags▼
$termios.unset_iflags(<BRKINT ICRNL ISTRIP IXON>);▼
$termios.unset_lflags(< ECHO ICANON IEXTEN>);▼
$termios.setattr(:DRAIN);▼
# reset terminal to original settings on exit▼
END { $saved.setattr(:NOW) }▼
# Sleep for a few seconds to give you time to fill the input buffer,▼
# type a bunch of random characters.▼
sleep 2;▼
# ------- The actual task --------▼
# Flush the input buffer▼
$termios.setattr(:FLUSH);▼
# --------------------------------▼
# Ctrl-C to exit▼
loop {▼
# Read up to 5 bytes from STDIN▼
# F5 through F12 are 5 bytes each▼
my $keypress = $*IN.read: 5;▼
# print the ordinals of the keypress character▼
print $keypress.decode.ords;▼
print "|";▼
}</lang>▼
=={{header|Phix}}==
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(printf "You pressed ~a\n" (read-char)))
</lang>
(formerly Perl 6)
▲{{works with|Rakudo|2018.12}}
▲Using termios to set some input attributes, flush the buffer & do unbuffered reads. Longer than strictly necessary to demonstrate concepts and make it easy to verify that it actually works as advertised.
▲<lang perl6>use Term::termios;
▲constant $saved = Term::termios.new( :fd($*IN.native-descriptor) ).getattr;
▲constant $termios = Term::termios.new( :fd($*IN.native-descriptor) ).getattr;
▲# set some modified input flags
▲$termios.unset_iflags(<BRKINT ICRNL ISTRIP IXON>);
▲$termios.unset_lflags(< ECHO ICANON IEXTEN>);
▲$termios.setattr(:DRAIN);
▲# reset terminal to original settings on exit
▲END { $saved.setattr(:NOW) }
▲# Sleep for a few seconds to give you time to fill the input buffer,
▲# type a bunch of random characters.
▲sleep 2;
▲# ------- The actual task --------
▲# Flush the input buffer
▲$termios.setattr(:FLUSH);
▲# --------------------------------
▲# Ctrl-C to exit
▲loop {
▲ # Read up to 5 bytes from STDIN
▲ # F5 through F12 are 5 bytes each
▲ my $keypress = $*IN.read: 5;
▲ # print the ordinals of the keypress character
▲ print $keypress.decode.ords;
▲ print "|";
▲}</lang>
=={{header|REXX}}==
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=={{header|Scala}}==
<lang scala>def flush() { out.flush() }</lang>
=={{header|Seed7}}==
The Seed7 library [http://seed7.sourceforge.net/libraries/keybd.htm keybd.s7i]
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