Dinh Tien Tuan Anh wrote:
Yes, it is certainly not Hugs which prevents from realtime interaction but it is the terminal you are using. If the terminal lets you delete the characters on the current line it has to keep them until you complete it with ENTER. Piping from and to other programs or files may not have this problem.
You're right, i've been using shell in Emacs to run Hugs, but when back to normal terminal, it works.
Just for curiousity, why does it happen ?
Emacs' shell-mode doesn't send anything to the terminal driver until
you hit Return, at which point it sends the whole line.
Note that the terminal driver itself normally does line-buffering,
although this is disabled if you set the buffering for stdin to
NoBuffering.
You can't disable the line-buffering inherent in Emacs' shell-mode;
you would have to use terminal-emulator instead ("M-x term" instead of
"M-x shell").
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Glynn Clements