I was looking for an easy way to clear stdin before getInputLine.
So I was wondering if it would make sense to add a clearInput function to haskeline.
I don't know how portable that would be or how easy to implement:
perusing the code made me think it could be possible, but complicated for me at least.
For now I did a workaround (which will probably be in simple-prompt-0.1.1) which checks
how little time passed since getInputLine: if it is less that 5ms then I repeat the prompt
hence causing any buffered stdin to be ignored effectively.
Another approach might be not to accept empty input (ie containing only a buffered newline).
On the other hand maybe there is a more natural library for prompt input, which allows editting?
(For my actual current use-case I only need Posix/Linux support, though a portable solution would be best.)
I was looking for an easy way to clear stdin before
getInputLine.So I was wondering if it would make sense to add a
clearInputfunction to haskeline. I don't know how portable that would be or how easy to implement: perusing the code made me think it could be possible, but complicated for me at least.For now I did a workaround (which will probably be in simple-prompt-0.1.1) which checks how little time passed since getInputLine: if it is less that 5ms then I repeat the prompt hence causing any buffered stdin to be ignored effectively. Another approach might be not to accept empty input (ie containing only a buffered newline).
On the other hand maybe there is a more natural library for prompt input, which allows editting? (For my actual current use-case I only need Posix/Linux support, though a portable solution would be best.)
Any thoughts?