this should be simple

[Peter L. Peres]

On Tue, 18 Jan 2005, Henry Spencer wrote:

> On Tue, 18 Jan 2005, Peter L. Peres wrote:
>>> I remember back to my QNX days that there were term functions which could
>>> detect this but for the life of me I can't find the Linux equivalent.
>>
>> You put stdin into raw mode and then you have access to all keypresses.
>
> No, unfortunately, you have (immediate) access to all *characters* that
> way.  This doesn't help for someone who wants to attach special
> significance to combinations of keypresses that don't correspond to
> distinct characters.  That requires removing another level of abstraction,
> and the facilities for that are not well standardized, partly because in a
> lot of pre-PC systems, that level was in hardware and couldn't be removed.

Maybe I did not express myself clearly, I meant put stdin in raw mode 
using ioctls. I have done this 'by the book' (Stevens) and later 
otherwise, so I know what's involved. It is not a painful process 
(compared to other programming issues imho). I agree about lack of 
standards. Stevens describes a method that will not work on Linux 
without peeking at the sources of an already running program (I think I 
used the top source for this at the time). Some 'small details' are 
different. I will try it out on netbsd later just to see how it 
compares.

Peter
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