On Tuesday, August 26, 2003, at 08:23 AM, Simon Marlow wrote:
The problem is caused by InteractiveUI.hs. It suppresses the
prompt when ghci's stdin is
not a tty (is_tty is false). Is there ever a reason to do
this? emacs needs the prompt to determine
when ghci's output has ended. If it never sees the prompt it
just waits forever.
I think I did this so that you could run GHCi with the input piped in,
and not get any annoying prompts on the output:
$ echo main | ghci -v0 Main.hs
hello world!
Perhaps the prompt should be suppressed only when verbosity is zero
*and* the input is not a tty. What do you think?
The attached patch does what you suggested. It has even been tested. :-)
Best Wishes,
Greg
patch-InteractiveUI.hs
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