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line editing in noncanonical input mode

joles
joles asked
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Last Modified: 2008-03-10
How do I enable the backspace key when I am in noncanonical input mode (i.e. I used ~ICANON in tcsetattr)?
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Commented:
You cannot! The special characters have only a meaning in canonical mode. (Ref David A. Curry in 'UNIX Systems Programming, 1st Ed, O'Reilly and Associates, p. 324-329).

You can, however, detect a backspace in your input (number 8),  
and use it to write a blank to stdout. I can send you a program
with a complete line editing algorithm in non-canonical mode, which I wrote as a subroutine - if you want me to.

 

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