topic Re: Backspace handling in Operating System - HP-UX

Backspace handling

Mike Keys — Fri, 15 Jul 2005 11:58:03 GMT

Well, thanks to this forum, I'm almost done writing the script I have been working on. Just applying some finishing touches to it.

One thing I need to do is a little input handling. How would I go about coding the input from STDIN to accept a backspace (i.e. if a user types in a wrong letter, they can press backspace to delete the mispelled letter).

Also, in conjunction with this, I need to fix the input cursor and not allow the user to backspace/delete past the first character.

Re: Backspace handling

Mike Keys — Fri, 15 Jul 2005 12:15:43 GMT

O.K. how about this. The delete key works as I want it to. Can I disable to function of the backspace key when running a perl script?

Re: Backspace handling

Mike Keys — Fri, 15 Jul 2005 12:42:55 GMT

Problem was with terminal definition.

Re: Backspace handling

RAC_1 — Fri, 15 Jul 2005 12:48:15 GMT

Try following.

tput 25,25
echo "Key in the CHOICE"
stty erase "the_back_space"
# (You do that with stty erase ^backspace key)

read answer

your stuff goes here.

This should work without problems.

Re: Backspace handling

generic_1 — Fri, 15 Jul 2005 12:48:37 GMT

stty erase (hit spacebar once) (hit returnkey)
It works.

Also, Ctrl+hkey works to backspace.

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