RCR getch

[Roger Pack]

It would be quite convenient to have a getch method in Ruby.
Any opposition to my suggesting its addition to core?
-r

 

[Nobuyoshi Nakada]

It would be quite convenient to have a getch method in Ruby.
Any opposition to my suggesting its addition to core?
-r

$ /usr/local/bin/ruby-1.9.3 -v -rio/console -e 'p STDIN.gets; p
STDIN.noecho{|f|f.gets("!")}; p STDIN.getch'
ruby 1.9.3dev (2010-07-06 trunk 28554) [x86_64-linux]
hello
"hello\n"
"world!"
"\n"

 

[botp]

$ /usr/local/bin/ruby-1.9.3 -v -rio/console -e 'p STDIN.gets; p
STDIN.noecho{|f|f.gets("!")}; p STDIN.getch'
ruby 1.9.3dev (2010-07-06 trunk 28554) [x86_64-linux]
hello
"hello\n"
"world!"
"\n"

uber cool. thank for the tip, nobu.
best regards -botp

 

[Roger Pack]

$ /usr/local/bin/ruby-1.9.3 -v -rio/console -e 'p STDIN.gets; p
STDIN.noecho{|f|f.gets("!")}; p STDIN.getch'
ruby 1.9.3dev (2010-07-06 trunk 28554) [x86_64-linux]
hello
"hello\n"
"world!"
"\n"

Excellent. I'm glad this was added then.

This appears to not work on windows is that expected?
-r

 

[Roger Pack]

Oops I missed a require:

Excellent. I'm glad this was added then.

This appears to not work on windows is that expected?

It does work, and, though it doesn't get arrow keys, it's good enough
for my intents and purposes.

NB if you *do* want arrow keys you'll want to wrap _getch or _getkbhit,
like rb-readline does. See also [1]..

-r

[1] http://betterlogic.com/roger/?p=2930

For google's sake, here's what it does when you *don't* first require
io/console:
NoMethodError: undefined method `getch' for #<IO:<STDIN>>
from (irb):1
from C:/installs/ruby_trunk_installed/bin/irb.bat:20:in `<main>'

 

[Nobuyoshi Nakada]

NB if you *do* want arrow keys you'll want to wrap _getch or _getkbhit,
like rb-readline does. See also [1]..

-r

[1] http://betterlogic.com/roger/?p=2930

What does it return when arrow keys are hit?

 

[Roger Pack]

NB if you *do* want arrow keys you'll want to wrap _getch or _getkbhit,

like rb-readline does. See also [1]..

What does it return when arrow keys are hit?

224 + (some number like 75 for left arrow). It appears to not track when
the shift key is hit and things like that, though. Not sure if those
are accessible...