Emilio Lopes writes: > As a result, if I forget to provide a filename to "M-x grep" it will > run forever, waiting for me to kill it.
Richard M Stallman writes: > So, my grep program supports "-H" but it apparently has not the > expected semantics. > That is a very vague statement. It tells us nothing. No, no. It's very concrete if you consider the rest of the message, which you didn't quote. Anyway, I understand the problem better now. If the user forgets to provide a filename to "M-x grep" (as in "grep -nH foo") it will run indefinitely waiting for input from stdin until killed. In such cases it's useful to have `null-device' appended, even if the grep program supports the option "-H" (which has an other purpose anyway). One could even argue if Emacs should not append *two* instances of `null-device', in the case the use just press enter at the grep prompt without even typing a regexp. _______________________________________________ Emacs-devel mailing list Emacs-devel@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-devel
