replace ewprintf("") calls with eerase(): no functional difference.

ok florian@

This diff soaks up the user input while the the maximum character
length boundary is crossed in the minbuffer and allows the user to see
the error message and respond accordingly. The goto named "nu

This diff soaks up the user input while the the maximum character
length boundary is crossed in the minbuffer and allows the user to see
the error message and respond accordingly. The goto named "null"
changed to "skipkey" as per Emil Engler's suggestion on tech@.

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Put the hardcoded '\n' character which is found throughout mg into a
buffer specific variable. The diff should not produce any behavourial
changes in mg.

remove double semicolon

from Brian Callahan

Fix an incorrect use of sizeof(pointer) by removing it and switching
from strncasecmp to strcasecmp which will stop matching strings
with unwanted trailing characters.

ok jasper@ deraadt@

Clear the mini buffer once a question has been displayed. ok jasper@

use strncasecmp()

ok lum@

no need to initialize variables that are being initialized a few lines below

ok lum@ on a previous diff

mark *Completions* buffer as read-only

ok lum@

Mark eread(), veread(), and eformat() as printf-like and
Convert eread(buf, a2, a3, a4) to eread("%s", a2, a3, a4, buf)

ok millert@ lum@

Remove ereply prototype since it is never used. Tweak a comment to reflect
ereply removal.
ok jasper@ florian@

Clean up the includes in mg.
This does the following:
Moves all POSIX headers from sysdef.h into the individual .c files so that
each file now only includes what it needs. All headers are properly so

Clean up the includes in mg.
This does the following:
Moves all POSIX headers from sysdef.h into the individual .c files so that
each file now only includes what it needs. All headers are properly sorted.
Moves the remainder of sysdef.h to other files (mostly def.h) and deletes
sysdef.h now that it's no longer contains anything.
Tweak a comment that references sysdef.h so that it no longer does that.
ok florian@

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Stop using <sys/param.h>; replace MAXPATHLEN with PATH_MAX, stop using MAX(),
and pull in <limits.h> for *_MAX constants.

inspired on a diff from Kamil Rytarowski (n54 (at) gmx.com)
ok bcallah@

Add some missing dobeeps.
ok florian@

Make the system bell toggleable via 'audible-bell', and if switched
off, make available an alternative 'visible-bell'.

ok florian@ jasper@ Feedback Sunil Nimmagadda.

fix potential memory leak, found by llvm

ok haesbaert, lum, benno

kill dead assignment, found by llvm

ok haesbaert, lum, benno

Add (r)evert prompt to "File changed on disk; really edit the buffer"
prompt.

input, ok lum@, man bit ok jmc@, ok benno@

Stop the space char completing a file name. This mimics more recent
versions of emacs.

kjell and jasper@ agree.

Remove the conditional directives NO_MACRO and NO_STARTUP.
They have not compiled for numerous years.
ok kjell@ millert@

Add the notion of an "ephemeral" popup, so we can flag a window
for destruction at a later date. (in the process, add a window flag field)

This fixes an issue noted by maja: namely, the *completion*

Add the notion of an "ephemeral" popup, so we can flag a window
for destruction at a later date. (in the process, add a window flag field)

This fixes an issue noted by maja: namely, the *completion*
window that pops up when you try to complete a filename on
buffer load would destroy any second window that you happened
to have open.

ok maja@

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Match comment to reality, whitespace

Fix the long-standing crash when >NXNAME characters were inserted
into minibuffer. Found and fixed by Martynas. Cleaned up
a bit so that error messages display properly in the status line.
Fixes Debi

Fix the long-standing crash when >NXNAME characters were inserted
into minibuffer. Found and fixed by Martynas. Cleaned up
a bit so that error messages display properly in the status line.
Fixes Debian bug #414846

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fix ^W (delete to start of word) in minibuffer;
i.e. actually kill text, don't just move the pointer.

Clean up some allocations. Remove malloc casts, and some easy
malloc(A*B)->calloc changes.