Make expr POSIX-compliant, and fix some bugs. Specifically:

- expr must conform to the Utility Syntax Guidelines, so use
getopt() to eat the (non-existent) options.

- Use the Standard type intmax_

Make expr POSIX-compliant, and fix some bugs. Specifically:

- expr must conform to the Utility Syntax Guidelines, so use
getopt() to eat the (non-existent) options.

- Use the Standard type intmax_t for arithmetic.

- If an argument cannot be *completely* converted to an integer, then
it is a string.

Additionally make some style cleanups near the modified lines. This
utility is still not completely style-compliant.

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o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int arg

o __P has been reoved
o Old-style K&R declarations have been converted to new C89 style
o register has been removed
o prototype for main() has been removed (gcc3 makes it an error)
o int main(int argc, char *argv[]) is the preferred main definition.
o Attempt to not break style(9) conformance for declarations more than
they already are.
o gc some #ifdef sun ... #endif code

Approved by: arch@, new style(9)

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Fix warnings to compile with WARNS=2 on i386 and alpha

Reviewed by: bde

Add overflow tests

Extend numeric operations to support 64 bit numbers.

$Id$ -> $FreeBSD$

Revert $FreeBSD$ to $Id$

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

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Fix my own brokeness for the colon operator, when one of the arguments
was a valid integer. The actual decision between integer and string
is now context-dependant on the operator being used.

expr(1) didn't comply to Posix.2 and its own man page: any
comparisions have been made as string comparisions, even in cases
where both operands clearly qualified as integers.

The fix is to make the

expr(1) didn't comply to Posix.2 and its own man page: any
comparisions have been made as string comparisions, even in cases
where both operands clearly qualified as integers.

The fix is to make the parser properly analyzing whether an operand is
a valid integer or not.

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You will find enclosed some changes to make gcc -Wall more happy in
/usr/src/bin. Note that some patches are still needed in that directory.

I (Joerg) finished most of Philippe's cleanup. /bin/sh w

You will find enclosed some changes to make gcc -Wall more happy in
/usr/src/bin. Note that some patches are still needed in that directory.

I (Joerg) finished most of Philippe's cleanup. /bin/sh will still
need *allot* of work, however.

Submitted by: charnier@lirmm.fr (Philippe Charnier)

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Added $Id$

Explicitly include <sys/types.h> before including <regex.h>. This is
apparently required by POSIX. It will be required in practice when
the bogus inclusion of <sys/types.h> is removed from <stdio.h

Explicitly include <sys/types.h> before including <regex.h>. This is
apparently required by POSIX. It will be required in practice when
the bogus inclusion of <sys/types.h> is removed from <stdio.h>.

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Allow expressions like "expr 'ABC' : '^.*$' to work as is done in other
expr implementations.

Fix grammar to eliminate support for unary minus expressions -- they
weren't supported, they aren't standard, and they caused expr to dump
core.

1003.2 requires that lexical comparisons be done in locale specific manner,
so we have to use strcoll() instead of strcmp().
1003.2 requires that a null string be returned if a string does not match

1003.2 requires that lexical comparisons be done in locale specific manner,
so we have to use strcoll() instead of strcmp().
1003.2 requires that a null string be returned if a string does not match
a \( \) subexpression.
Replaced fprintf/exit with calls to err and errx as appropriate.

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Update to my latest expr (fixes bugs with comparison and matching operators)
Add man page I wrote.

added POSIX regex to expr

Initial import, 0.1 + pk 0.2.4-B1