undo previous for 'r' and 'e' modifiers; they should no go further than
the last '/'.

Fix
% set x='a/b c/d.e'
% echo $x:q:h

Use the right size for several calloc calls.

When allocating for a Char **, it should use sizeof(Char *), not
sizeof(Char **). This doesn't actually affect the results except
on DS9000 though :-)

Don't cast the value returned from *malloc. No change to compiler output.

compare pointers with NULL not '\0'.

Welcome to the 21th century csh: retire "ptr_t" now that we have "void *"

Remove Free, s/xfree/free/.

Standard C says that free should be a no-op for a NULL pointer, so
we don't need an extra function to do this.

While here, add an XXX about a wrong sounding comment

CID 1060854: Wrong sizeof argument (SIZEOF_MISMATCH)

WARNS=6 [-Wconversion]

make history kind of work :-), turn libedit support on.

Add a little libedit front end. Could be used as someone's pet project to
learn how to program. It is not enabled in the Makefile, and it states why
there.

Match curly braces in undef(FILEC) case. Found by cppcheck.

no need to have cshbool; just make them int

PR/36650: Michael van Elst: Get rid of bool, because csh uses bool as a small
int.

Rename bool -> cshbool; despite the name, bool actually holds values other
than 0 or 1. Fixes PR/36650.

Coverity CID 1762. Fix resource leak.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22249, verified by myself.

__STDC__ is always defined on NetBSD.

fix WARNS=2

ANSIfication and KNF improvements by Petri Koistinen in bin/13689,
with some fixes by me.

Need alvec global variable now.

decouple us from stdio's BUFSIZ and boost BUFSIZE to 4K

printf format portability.

Be more retentive about use of NOTREACHED and noreturn.

Delint (partially).