Make the 'y' (translate) command aware of multibyte characters.

Whitespace cleanup

ANSIfy

Ignore leading semicolons on commands; required by SUSv3.

Obtained from: NetBSD (kleink, Aymeric Vincent)

Fix a bug in sed(1)'s "s" command wherein if an escape ("\" character)
was initiated at the last character of the line buffer, the Wrong
Thing was done and sed barfed by interpreting the following NU

Fix a bug in sed(1)'s "s" command wherein if an escape ("\" character)
was initiated at the last character of the line buffer, the Wrong
Thing was done and sed barfed by interpreting the following NUL byte
as a digit. Instead, pull up the next buffer and record that the "\"
was last seen.

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Fix an ages-old bug in sed(1), which resulted in the absolutely valid
substitution expressions in the form `s,[fooexp],[barexp],;...' treated
as invalid when the third `,' is (_POSIX2_LINE_MAX * N)-t

Fix an ages-old bug in sed(1), which resulted in the absolutely valid
substitution expressions in the form `s,[fooexp],[barexp],;...' treated
as invalid when the third `,' is (_POSIX2_LINE_MAX * N)-th character in
the line.

MFC after: 2 weeks

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remove __P

WARNS=2 partial fix; use NO_WERROR to protect against some hard-to-fix warnings.

Use __FBSDID(), kill register keyword.

Don't allocate a zero byte segment.

PR: bin/11900
MFC after: 2 weeks

Expand xmalloc in-place, along with xrealloc; which wasn't even ANSI in its
implementation.

Don't leak memory when compiling text following the `a', `c' or `i' command.

Testcase:

echo FOO | sed "/FOO/c\\
`jot -b 'aaaa\' 500`"

Submitted by: Max Khon <fjoe@newst.net>

Add a new flag: -E enables "extended" regular expressions.

$Id$ -> $FreeBSD$

Fix a new bug introduced by the previous bug fix

Fix brokenness compiling "s/pat/subst/" when length of subst is >= 4090 chars.
PR: bin/7939

Terminate our output string correctly if we've got
an ``a'' command that has an escaped newline on the
last line of the last script that we're processing.

This fixes exmh2/scripts/build when /etc/ma

Terminate our output string correctly if we've got
an ``a'' command that has an escaped newline on the
last line of the last script that we're processing.

This fixes exmh2/scripts/build when /etc/malloc.conf -> AJ

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Remove local redefinition for err(). Add usage().

Finish importing Lite2's src/usr.bin, except for ex, diff, grep, mail,
pascal and vmstat.sparc. All changed files on the vendor branch should
already have been imported.

Localize it
8bit cleanup

Yet^2 another fix for the line continuation bug.

The fundamental problem with the original code is that it accesses
p[-2] which is one before the beginning of the input buffer for
empty lines. rev.

Yet^2 another fix for the line continuation bug.

The fundamental problem with the original code is that it accesses
p[-2] which is one before the beginning of the input buffer for
empty lines. rev.1.6 just moved the problem from failures when
p[-2] happens to be '\\' to failures when it happens to be '\0'.
rev.1.5 was confused about the trailing newline and other things.

I went back to rev.1.5 and fixed it. The result is the same as
Keith Bostic's final version in PR 1356 except it loses more
gracefully for excessively long input lines.

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Yet another fix for the line continuation bug in sed. Keith's patch
introduced a new bug. This fix appears to work correctly. Fixes PR#1350.

Submitted by: mark@linus.demon.co.uk (Mark Valentine)

Fix from Keith Bostic <bostic@bsdi.com> for bug in sed dealing with
continuation lines.

Submitted by: Keith Bostic via Kirk McKusick

Merge various fixes from NetBSD. This will allow the WordPerfect for
SCO installation to run all the way through (some POSIX fixes).

Remove trailing whitespace.

Sed dumps core when linked with some coalescing malloc because it
doesn't initialize malloced structure.

Submitted by: vode@hut.fi