This commit was manufactured by cvs2svn to create branch 'cygwin-1-3-7-1'.github/cygwin-1-3-9github/cygwin-1-3-8-1github/cygwin-1-3-7-1github/cygwin-1-3-10-1cygwin-1-3-9cygwin-1-3-8-1cygwin-1-3-7-1cygwin-1-3-10-1

Sprout from cygwin-1-3-6-1 2001-11-28 02:36:33 UTC cvs2svn 'This commit was manufactured by cvs2svn to create branch 'cygwin-1-3-6-1'.'
Cherrypick from master 2001-12-31 23:24:10 UTC Christopher Faylor <me@cgf.cx> 'Nuke':
    winsup/MAINTAINERS
Delete:
    winsup/cygwin/regexp/regerror.c
    winsup/cygwin/regexp/regexp.3
    winsup/cygwin/regexp/regexp.c
    winsup/cygwin/regexp/regsub.c
    winsup/cygwin/test.c

6 files changed, 6 insertions, 1949 deletions

diff --git a/winsup/MAINTAINERS b/winsup/MAINTAINERS
index be58c5e..873e96c 100644
--- a/winsup/MAINTAINERS
+++ b/winsup/MAINTAINERS
@@ -1,28 +1,7 @@
-The following people are responsible for maintaining various pieces of
-the winsup directory.  Their approval is required before committing any
-changes to the repository.
+Please send email to the cygwin mailing list at cygwin@cygwin.com if you
+have questions or comments about the code in this directory.
 
-Makefile.*			Chris Faylor <cgf@cygnus.com>
-configure.*			Chris Faylor <cgf@cygnus.com>
-MAINTAINERS			Chris Faylor <cgf@cygnus.com>
-cygwin/security.cc and
-ntsec stuff			Corinna Vinschen <vinschen@cygnus.com>
-cygwin/fhandler_raw.cc		Corinna Vinschen <vinschen@cygnus.com>
-cygwin/fhandler_floppy.cc	Corinna Vinschen <vinschen@cygnus.com>
-cygwin/fhandler_tape.cc		Corinna Vinschen <vinschen@cygnus.com>
-utils/getfacl.c			Corinna Vinschen <vinschen@cygnus.com>
-utils/mkgroup.c			Corinna Vinschen <vinschen@cygnus.com>
-utils/mkpasswd.c		Corinna Vinschen <vinschen@cygnus.com>
-utils/passwd.c			Corinna Vinschen <vinschen@cygnus.com>
-utils/setfacl.c			Corinna Vinschen <vinschen@cygnus.com>
-mingw/*				Mumit Khan <xraylith.wisc.edu>
-w32api/*			Mumit Khan <xraylith.wisc.edu>
-cinstall/*			DJ Delorie <dj@cygnus.com>
-cygwin/{everything else}	Chris Faylor <cgf@cygnus.com>,
-				DJ Delorie <dj@cygnus.com>
-				Corinna Vinschen <vinschen@cygnus.com>
-doc/*.texinfo			David Starks-Browning <starksb@ebi.ac.uk>
-doc/{everything else}		DJ Delorie <dj@cygnus.com>
-utils/*				Chris Faylor <cgf@cygnus.com>,
-				DJ Delorie <dj@cygnus.com>
-				Corinna Vinschen <vinschen@cygnus.com>
+All of the maintainers would prefer that you use the cygwin mailing list for
+all communication.
+
+Thank you.
diff --git a/winsup/cygwin/regexp/regerror.c b/winsup/cygwin/regexp/regerror.c
deleted file mode 100644
index 0f6159b..0000000
--- a/winsup/cygwin/regexp/regerror.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* regerror.c
-
-   Copyright 1996, 1998, 2001 Red Hat, Inc.
-
-This file is part of Cygwin.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-#include "winsup.h"
-#include "regexp.h"
-#include <stdio.h>
-
-void
-regerror(const char *s __attribute__ ((unused)))
-{
-#ifdef ERRAVAIL
-	error("regexp: %s", s);
-#else
-/*
-	fprintf(stderr, "regexp(3): %s\n", s);
-	exit(1);
-*/
-	return;	  /* let std. egrep handle errors */
-#endif
-	/* NOTREACHED */
-}
diff --git a/winsup/cygwin/regexp/regexp.3 b/winsup/cygwin/regexp/regexp.3
deleted file mode 100644
index d1a3a00..0000000
--- a/winsup/cygwin/regexp/regexp.3
+++ /dev/null
@@ -1,321 +0,0 @@
-.\" Copyright (c) 1991, 1993
-.\"	The Regents of the University of California.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\"    must display the following acknowledgement:
-.\"	This product includes software developed by the University of
-.\"	California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\"    may be used to endorse or promote products derived from this software
-.\"    without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\"     @(#)regexp.3	8.1 (Berkeley) 6/4/93
-.\"
-.Dd June 4, 1993
-.Dt REGEXP 3
-.Os
-.Sh NAME
-.Nm regcomp ,
-.Nm regexec ,
-.Nm regsub ,
-.Nm regerror
-.Nd regular expression handlers
-.Sh SYNOPSIS
-.Fd #include <regexp.h>
-.Ft regexp *
-.Fn regcomp "const char *exp"
-.Ft int
-.Fn regexec "const regexp *prog" "const char *string"
-.Ft void
-.Fn regsub "const regexp *prog" "const char *source" "char *dest"
-.Sh DESCRIPTION
-.Bf -symbolic
-This interface is made obsolete by
-.Xr regex 3 .
-It is available from the compatibility library, libcompat.
-.Ef
-.Pp
-The
-.Fn regcomp ,
-.Fn regexec ,
-.Fn regsub ,
-and
-.Fn regerror
-functions
-implement
-.Xr egrep 1 Ns -style
-regular expressions and supporting facilities.
-.Pp
-The
-.Fn regcomp
-function
-compiles a regular expression into a structure of type
-.Xr regexp ,
-and returns a pointer to it.
-The space has been allocated using
-.Xr malloc 3
-and may be released by
-.Xr free .
-.Pp
-The
-.Fn regexec
-function
-matches a
-.Dv NUL Ns -terminated
-.Fa string
-against the compiled regular expression
-in
-.Fa prog .
-It returns 1 for success and 0 for failure, and adjusts the contents of
-.Fa prog Ns 's
-.Em startp
-and
-.Em endp
-(see below) accordingly.
-.Pp
-The members of a
-.Xr regexp
-structure include at least the following (not necessarily in order):
-.Bd -literal -offset indent
-char *startp[NSUBEXP];
-char *endp[NSUBEXP];
-.Ed
-.Pp
-where
-.Dv NSUBEXP
-is defined (as 10) in the header file.
-Once a successful
-.Fn regexec
-has been done using the
-.Fn regexp ,
-each
-.Em startp Ns - Em endp
-pair describes one substring
-within the
-.Fa string ,
-with the
-.Em startp
-pointing to the first character of the substring and
-the
-.Em endp
-pointing to the first character following the substring.
-The 0th substring is the substring of
-.Fa string
-that matched the whole
-regular expression.
-The others are those substrings that matched parenthesized expressions
-within the regular expression, with parenthesized expressions numbered
-in left-to-right order of their opening parentheses.
-.Pp
-The
-.Fn regsub
-function
-copies
-.Fa source
-to
-.Fa dest ,
-making substitutions according to the
-most recent
-.Fn regexec
-performed using
-.Fa prog .
-Each instance of `&' in
-.Fa source
-is replaced by the substring
-indicated by
-.Em startp Ns Bq
-and
-.Em endp Ns Bq .
-Each instance of
-.Sq \e Ns Em n ,
-where
-.Em n
-is a digit, is replaced by
-the substring indicated by
-.Em startp Ns Bq Em n
-and
-.Em endp Ns Bq Em n .
-To get a literal `&' or
-.Sq \e Ns Em n
-into
-.Fa dest ,
-prefix it with `\e';
-to get a literal `\e' preceding `&' or
-.Sq \e Ns Em n ,
-prefix it with
-another `\e'.
-.Pp
-The
-.Fn regerror
-function
-is called whenever an error is detected in
-.Fn regcomp ,
-.Fn regexec ,
-or
-.Fn regsub .
-The default
-.Fn regerror
-writes the string
-.Fa msg ,
-with a suitable indicator of origin,
-on the standard
-error output
-and invokes
-.Xr exit 2 .
-The
-.Fn regerror
-function
-can be replaced by the user if other actions are desirable.
-.Sh REGULAR EXPRESSION SYNTAX
-A regular expression is zero or more
-.Em branches ,
-separated by `|'.
-It matches anything that matches one of the branches.
-.Pp
-A branch is zero or more
-.Em pieces ,
-concatenated.
-It matches a match for the first, followed by a match for the second, etc.
-.Pp
-A piece is an
-.Em atom
-possibly followed by `*', `+', or `?'.
-An atom followed by `*' matches a sequence of 0 or more matches of the atom.
-An atom followed by `+' matches a sequence of 1 or more matches of the atom.
-An atom followed by `?' matches a match of the atom, or the null string.
-.Pp
-An atom is a regular expression in parentheses (matching a match for the
-regular expression), a
-.Em range
-(see below), `.'
-(matching any single character), `^' (matching the null string at the
-beginning of the input string), `$' (matching the null string at the
-end of the input string), a `\e' followed by a single character (matching
-that character), or a single character with no other significance
-(matching that character).
-.Pp
-A
-.Em range
-is a sequence of characters enclosed in `[]'.
-It normally matches any single character from the sequence.
-If the sequence begins with `^',
-it matches any single character
-.Em not
-from the rest of the sequence.
-If two characters in the sequence are separated by `\-', this is shorthand
-for the full list of
-.Tn ASCII
-characters between them
-(e.g. `[0-9]' matches any decimal digit).
-To include a literal `]' in the sequence, make it the first character
-(following a possible `^').
-To include a literal `\-', make it the first or last character.
-.Sh AMBIGUITY
-If a regular expression could match two different parts of the input string,
-it will match the one which begins earliest.
-If both begin in the same place but match different lengths, or match
-the same length in different ways, life gets messier, as follows.
-.Pp
-In general, the possibilities in a list of branches are considered in
-left-to-right order, the possibilities for `*', `+', and `?' are
-considered longest-first, nested constructs are considered from the
-outermost in, and concatenated constructs are considered leftmost-first.
-The match that will be chosen is the one that uses the earliest
-possibility in the first choice that has to be made.
-If there is more than one choice, the next will be made in the same manner
-(earliest possibility) subject to the decision on the first choice.
-And so forth.
-.Pp
-For example,
-.Sq Li (ab|a)b*c
-could match
-`abc' in one of two ways.
-The first choice is between `ab' and `a'; since `ab' is earlier, and does
-lead to a successful overall match, it is chosen.
-Since the `b' is already spoken for,
-the `b*' must match its last possibility\(emthe empty string\(emsince
-it must respect the earlier choice.
-.Pp
-In the particular case where no `|'s are present and there is only one
-`*', `+', or `?', the net effect is that the longest possible
-match will be chosen.
-So
-.Sq Li ab* ,
-presented with `xabbbby', will match `abbbb'.
-Note that if
-.Sq Li ab* ,
-is tried against `xabyabbbz', it
-will match `ab' just after `x', due to the begins-earliest rule.
-(In effect, the decision on where to start the match is the first choice
-to be made, hence subsequent choices must respect it even if this leads them
-to less-preferred alternatives.)
-.Sh RETURN VALUES
-The
-.Fn regcomp
-function
-returns
-.Dv NULL
-for a failure
-.Pf ( Fn regerror
-permitting),
-where failures are syntax errors, exceeding implementation limits,
-or applying `+' or `*' to a possibly-null operand.
-.Sh SEE ALSO
-.Xr ed 1 ,
-.Xr ex 1 ,
-.Xr expr 1 ,
-.Xr egrep 1 ,
-.Xr fgrep 1 ,
-.Xr grep 1 ,
-.Xr regex 3
-.Sh HISTORY
-Both code and manual page for
-.Fn regcomp ,
-.Fn regexec ,
-.Fn regsub ,
-and
-.Fn regerror
-were written at the University of Toronto
-and appeared in
-.Bx 4.3 tahoe .
-They are intended to be compatible with the Bell V8
-.Xr regexp 3 ,
-but are not derived from Bell code.
-.Sh BUGS
-Empty branches and empty regular expressions are not portable to V8.
-.Pp
-The restriction against
-applying `*' or `+' to a possibly-null operand is an artifact of the
-simplistic implementation.
-.Pp
-Does not support
-.Xr egrep Ns 's
-newline-separated branches;
-neither does the V8
-.Xr regexp 3 ,
-though.
-.Pp
-Due to emphasis on
-compactness and simplicity,
-it's not strikingly fast.
-It does give special attention to handling simple cases quickly.
diff --git a/winsup/cygwin/regexp/regexp.c b/winsup/cygwin/regexp/regexp.c
deleted file mode 100644
index 2f60d64..0000000
--- a/winsup/cygwin/regexp/regexp.c
+++ /dev/null
@@ -1,1321 +0,0 @@
-/*
- * regcomp and regexec -- regsub and regerror are elsewhere
- *
- *	Copyright (c) 1986 by University of Toronto.
- *	Written by Henry Spencer.  Not derived from licensed software.
- *
- *	Permission is granted to anyone to use this software for any
- *	purpose on any computer system, and to redistribute it freely,
- *	subject to the following restrictions:
- *
- *	1. The author is not responsible for the consequences of use of
- *		this software, no matter how awful, even if they arise
- *		from defects in it.
- *
- *	2. The origin of this software must not be misrepresented, either
- *		by explicit claim or by omission.
- *
- *	3. Altered versions must be plainly marked as such, and must not
- *		be misrepresented as being the original software.
- *** THIS IS AN ALTERED VERSION.  It was altered by John Gilmore,
- *** hoptoad!gnu, on 27 Dec 1986, to add \n as an alternative to |
- *** to assist in implementing egrep.
- *** THIS IS AN ALTERED VERSION.  It was altered by John Gilmore,
- *** hoptoad!gnu, on 27 Dec 1986, to add \< and \> for word-matching
- *** as in BSD grep and ex.
- *** THIS IS AN ALTERED VERSION.  It was altered by John Gilmore,
- *** hoptoad!gnu, on 28 Dec 1986, to optimize characters quoted with \.
- *** THIS IS AN ALTERED VERSION.  It was altered by James A. Woods,
- *** ames!jaw, on 19 June 1987, to quash a regcomp() redundancy.
- *** THIS IS AN ALTERED VERSION.  It was altered by Geoffrey Noer,
- *** noer@cygnus.com, on 6 Oct 1997, to change the prototype format
- *** for inclusion in the Cygwin32 library.
- *
- * Beware that some of this code is subtly aware of the way operator
- * precedence is structured in regular expressions.  Serious changes in
- * regular-expression syntax might require a total rethink.
- */
-
-#include "winsup.h"
-#include "regexp.h"
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include "regmagic.h"
-
-/*
- * The "internal use only" fields in regexp.h are present to pass info from
- * compile to execute that permits the execute phase to run lots faster on
- * simple cases.  They are:
- *
- * regstart	char that must begin a match; '\0' if none obvious
- * reganch	is the match anchored (at beginning-of-line only)?
- * regmust	string (pointer into program) that match must include, or NULL
- * regmlen	length of regmust string
- *
- * Regstart and reganch permit very fast decisions on suitable starting points
- * for a match, cutting down the work a lot.  Regmust permits fast rejection
- * of lines that cannot possibly match.  The regmust tests are costly enough
- * that regcomp() supplies a regmust only if the r.e. contains something
- * potentially expensive (at present, the only such thing detected is * or +
- * at the start of the r.e., which can involve a lot of backup).  Regmlen is
- * supplied because the test in regexec() needs it and regcomp() is computing
- * it anyway.
- */
-
-/*
- * Structure for regexp "program".  This is essentially a linear encoding
- * of a nondeterministic finite-state machine (aka syntax charts or
- * "railroad normal form" in parsing technology).  Each node is an opcode
- * plus a "next" pointer, possibly plus an operand.  "Next" pointers of
- * all nodes except BRANCH implement concatenation; a "next" pointer with
- * a BRANCH on both ends of it is connecting two alternatives.  (Here we
- * have one of the subtle syntax dependencies:  an individual BRANCH (as
- * opposed to a collection of them) is never concatenated with anything
- * because of operator precedence.)  The operand of some types of node is
- * a literal string; for others, it is a node leading into a sub-FSM.  In
- * particular, the operand of a BRANCH node is the first node of the branch.
- * (NB this is *not* a tree structure:  the tail of the branch connects
- * to the thing following the set of BRANCHes.)  The opcodes are:
- */
-
-/* definition	number	opnd?	meaning */
-#define	END	0	/* no	End of program. */
-#define	BOL	1	/* no	Match "" at beginning of line. */
-#define	EOL	2	/* no	Match "" at end of line. */
-#define	ANY	3	/* no	Match any one character. */
-#define	ANYOF	4	/* str	Match any character in this string. */
-#define	ANYBUT	5	/* str	Match any character not in this string. */
-#define	BRANCH	6	/* node	Match this alternative, or the next... */
-#define	BACK	7	/* no	Match "", "next" ptr points backward. */
-#define	EXACTLY	8	/* str	Match this string. */
-#define	NOTHING	9	/* no	Match empty string. */
-#define	STAR	10	/* node	Match this (simple) thing 0 or more times. */
-#define	PLUS	11	/* node	Match this (simple) thing 1 or more times. */
-#define	WORDA	12	/* no	Match "" at wordchar, where prev is nonword */
-#define	WORDZ	13	/* no	Match "" at nonwordchar, where prev is word */
-#define	OPEN	20	/* no	Mark this point in input as start of #n. */
-			/*	OPEN+1 is number 1, etc. */
-#define	CLOSE	30	/* no	Analogous to OPEN. */
-
-/*
- * Opcode notes:
- *
- * BRANCH	The set of branches constituting a single choice are hooked
- *		together with their "next" pointers, since precedence prevents
- *		anything being concatenated to any individual branch.  The
- *		"next" pointer of the last BRANCH in a choice points to the
- *		thing following the whole choice.  This is also where the
- *		final "next" pointer of each individual branch points; each
- *		branch starts with the operand node of a BRANCH node.
- *
- * BACK		Normal "next" pointers all implicitly point forward; BACK
- *		exists to make loop structures possible.
- *
- * STAR,PLUS	'?', and complex '*' and '+', are implemented as circular
- *		BRANCH structures using BACK.  Simple cases (one character
- *		per match) are implemented with STAR and PLUS for speed
- *		and to minimize recursive plunges.
- *
- * OPEN,CLOSE	...are numbered at compile time.
- */
-
-/*
- * A node is one char of opcode followed by two chars of "next" pointer.
- * "Next" pointers are stored as two 8-bit pieces, high order first.  The
- * value is a positive offset from the opcode of the node containing it.
- * An operand, if any, simply follows the node.  (Note that much of the
- * code generation knows about this implicit relationship.)
- *
- * Using two bytes for the "next" pointer is vast overkill for most things,
- * but allows patterns to get big without disasters.
- */
-#define	OP(p)	(*(p))
-#define	NEXT(p)	(((*((p)+1)&0377)<<8) + (*((p)+2)&0377))
-#define	OPERAND(p)	((p) + 3)
-
-/*
- * See regmagic.h for one further detail of program structure.
- */
-
-
-/*
- * Utility definitions.
- */
-#ifndef CHARBITS
-#define	UCHARAT(p)	((int)*(unsigned char *)(p))
-#else
-#define	UCHARAT(p)	((int)*(p)&CHARBITS)
-#endif
-
-#define	FAIL(m)	{ regerror(m); return(NULL); }
-#define	ISMULT(c)	((c) == '*' || (c) == '+' || (c) == '?')
-
-/*
- * Flags to be passed up and down.
- */
-#define	HASWIDTH	01	/* Known never to match null string. */
-#define	SIMPLE		02	/* Simple enough to be STAR/PLUS operand. */
-#define	SPSTART		04	/* Starts with * or +. */
-#define	WORST		0	/* Worst case. */
-
-/*
- * Global work variables for regcomp().
- */
-static char *regparse;		/* Input-scan pointer. */
-static int regnpar;		/* () count. */
-static char regdummy;
-static char *regcode;		/* Code-emit pointer; &regdummy = don't. */
-static long regsize;		/* Code size. */
-
-/*
- * Forward declarations for regcomp()'s friends.
- */
-#ifndef STATIC
-#define	STATIC	static
-#endif
-STATIC char *reg (int, int *);
-STATIC char *regbranch (int *);
-STATIC char *regpiece (int *);
-STATIC char *regatom (int *);
-STATIC char *regnode (char);
-STATIC char *regnext (char *);
-STATIC void regc (char);
-STATIC void reginsert (char, char *);
-STATIC void regtail (char *, char *);
-STATIC void regoptail (char *, char *);
-#ifdef STRCSPN
-STATIC int strcspn (char *, char *);
-#endif
-
-/*
- - regcomp - compile a regular expression into internal code
- *
- * We can't allocate space until we know how big the compiled form will be,
- * but we can't compile it (and thus know how big it is) until we've got a
- * place to put the code.  So we cheat:  we compile it twice, once with code
- * generation turned off and size counting turned on, and once "for real".
- * This also means that we don't allocate space until we are sure that the
- * thing really will compile successfully, and we never have to move the
- * code and thus invalidate pointers into it.  (Note that it has to be in
- * one piece because free() must be able to free it all.)
- *
- * Beware that the optimization-preparation code in here knows about some
- * of the structure of the compiled regexp.
- */
-regexp *
-regcomp(exp)
-const char *exp;
-{
-	register regexp *r;
-	register char *scan;
-	register char *longest;
-	register int len;
-	int flags;
-
-	if (exp == NULL)
-		FAIL("NULL argument");
-
-	/* First pass: determine size, legality. */
-#ifdef notdef
-	if (exp[0] == '.' && exp[1] == '*') exp += 2;  /* aid grep */
-#endif
-	regparse = (char *)exp;
-	regnpar = 1;
-	regsize = 0L;
-	regcode = &regdummy;
-	regc(MAGIC);
-	if (reg(0, &flags) == NULL)
-		return(NULL);
-
-	/* Small enough for pointer-storage convention? */
-	if (regsize >= 32767L)		/* Probably could be 65535L. */
-		FAIL("regexp too big");
-
-	/* Allocate space. */
-	r = (regexp *)malloc(sizeof(regexp) + (unsigned)regsize);
-	if (r == NULL)
-		FAIL("out of space");
-
-	/* Second pass: emit code. */
-	regparse = (char *)exp;
-	regnpar = 1;
-	regcode = r->program;
-	regc(MAGIC);
-	if (reg(0, &flags) == NULL)
-		return(NULL);
-
-	/* Dig out information for optimizations. */
-	r->regstart = '\0';	/* Worst-case defaults. */
-	r->reganch = 0;
-	r->regmust = NULL;
-	r->regmlen = 0;
-	scan = r->program+1;			/* First BRANCH. */
-	if (OP(regnext(scan)) == END) {		/* Only one top-level choice. */
-		scan = OPERAND(scan);
-
-		/* Starting-point info. */
-		if (OP(scan) == EXACTLY)
-			r->regstart = *OPERAND(scan);
-		else if (OP(scan) == BOL)
-			r->reganch++;
-
-		/*
-		 * If there's something expensive in the r.e., find the
-		 * longest literal string that must appear and make it the
-		 * regmust.  Resolve ties in favor of later strings, since
-		 * the regstart check works with the beginning of the r.e.
-		 * and avoiding duplication strengthens checking.  Not a
-		 * strong reason, but sufficient in the absence of others.
-		 */
-		if (flags&SPSTART) {
-			longest = NULL;
-			len = 0;
-			for (; scan != NULL; scan = regnext(scan))
-				if (OP(scan) == EXACTLY && (int) strlen(OPERAND(scan)) >= len) {
-					longest = OPERAND(scan);
-					len = strlen(OPERAND(scan));
-				}
-			r->regmust = longest;
-			r->regmlen = len;
-		}
-	}
-
-	return(r);
-}
-
-/*
- - reg - regular expression, i.e. main body or parenthesized thing
- *
- * Caller must absorb opening parenthesis.
- *
- * Combining parenthesis handling with the base level of regular expression
- * is a trifle forced, but the need to tie the tails of the branches to what
- * follows makes it hard to avoid.
- */
-static char *
-reg(paren, flagp)
-int paren;			/* Parenthesized? */
-int *flagp;
-{
-	register char *ret;
-	register char *br;
-	register char *ender;
-	register int parno = 0;
-	int flags;
-
-	*flagp = HASWIDTH;	/* Tentatively. */
-
-	/* Make an OPEN node, if parenthesized. */
-	if (paren) {
-		if (regnpar >= NSUBEXP)
-			FAIL("too many ()");
-		parno = regnpar;
-		regnpar++;
-		ret = regnode(OPEN+parno);
-	} else
-		ret = NULL;
-
-	/* Pick up the branches, linking them together. */
-	br = regbranch(&flags);
-	if (br == NULL)
-		return(NULL);
-	if (ret != NULL)
-		regtail(ret, br);	/* OPEN -> first. */
-	else
-		ret = br;
-	if (!(flags&HASWIDTH))
-		*flagp &= ~HASWIDTH;
-	*flagp |= flags&SPSTART;
-	while (*regparse == '|' || *regparse == '\n') {
-		regparse++;
-		br = regbranch(&flags);
-		if (br == NULL)
-			return(NULL);
-		regtail(ret, br);	/* BRANCH -> BRANCH. */
-		if (!(flags&HASWIDTH))
-			*flagp &= ~HASWIDTH;
-		*flagp |= flags&SPSTART;
-	}
-
-	/* Make a closing node, and hook it on the end. */
-	ender = regnode((paren) ? CLOSE+parno : END);
-	regtail(ret, ender);
-
-	/* Hook the tails of the branches to the closing node. */
-	for (br = ret; br != NULL; br = regnext(br))
-		regoptail(br, ender);
-
-	/* Check for proper termination. */
-	if (paren && *regparse++ != ')') {
-		FAIL("unmatched ()");
-	} else if (!paren && *regparse != '\0') {
-		if (*regparse == ')') {
-			FAIL("unmatched ()");
-		} else
-			FAIL("junk on end");	/* "Can't happen". */
-		/* NOTREACHED */
-	}
-
-	return(ret);
-}
-
-/*
- - regbranch - one alternative of an | operator
- *
- * Implements the concatenation operator.
- */
-static char *
-regbranch(flagp)
-int *flagp;
-{
-	register char *ret;
-	register char *chain;
-	register char *latest;
-	int flags;
-
-	*flagp = WORST;		/* Tentatively. */
-
-	ret = regnode(BRANCH);
-	chain = NULL;
-	while (*regparse != '\0' && *regparse != ')' &&
-	       *regparse != '\n' && *regparse != '|') {
-		latest = regpiece(&flags);
-		if (latest == NULL)
-			return(NULL);
-		*flagp |= flags&HASWIDTH;
-		if (chain == NULL)	/* First piece. */
-			*flagp |= flags&SPSTART;
-		else
-			regtail(chain, latest);
-		chain = latest;
-	}
-	if (chain == NULL)	/* Loop ran zero times. */
-		(void) regnode(NOTHING);
-
-	return(ret);
-}
-
-/*
- - regpiece - something followed by possible [*+?]
- *
- * Note that the branching code sequences used for ? and the general cases
- * of * and + are somewhat optimized:  they use the same NOTHING node as
- * both the endmarker for their branch list and the body of the last branch.
- * It might seem that this node could be dispensed with entirely, but the
- * endmarker role is not redundant.
- */
-static char *
-regpiece(flagp)
-int *flagp;
-{
-	register char *ret;
-	register char op;
-	register char *next;
-	int flags;
-
-	ret = regatom(&flags);
-	if (ret == NULL)
-		return(NULL);
-
-	op = *regparse;
-	if (!ISMULT(op)) {
-		*flagp = flags;
-		return(ret);
-	}
-
-	if (!(flags&HASWIDTH) && op != '?')
-		FAIL("*+ operand could be empty");
-	*flagp = (op != '+') ? (WORST|SPSTART) : (WORST|HASWIDTH);
-
-	if (op == '*' && (flags&SIMPLE))
-		reginsert(STAR, ret);
-	else if (op == '*') {
-		/* Emit x* as (x&|), where & means "self". */
-		reginsert(BRANCH, ret);			/* Either x */
-		regoptail(ret, regnode(BACK));		/* and loop */
-		regoptail(ret, ret);			/* back */
-		regtail(ret, regnode(BRANCH));		/* or */
-		regtail(ret, regnode(NOTHING));		/* null. */
-	} else if (op == '+' && (flags&SIMPLE))
-		reginsert(PLUS, ret);
-	else if (op == '+') {
-		/* Emit x+ as x(&|), where & means "self". */
-		next = regnode(BRANCH);			/* Either */
-		regtail(ret, next);
-		regtail(regnode(BACK), ret);		/* loop back */
-		regtail(next, regnode(BRANCH));		/* or */
-		regtail(ret, regnode(NOTHING));		/* null. */
-	} else if (op == '?') {
-		/* Emit x? as (x|) */
-		reginsert(BRANCH, ret);			/* Either x */
-		regtail(ret, regnode(BRANCH));		/* or */
-		next = regnode(NOTHING);		/* null. */
-		regtail(ret, next);
-		regoptail(ret, next);
-	}
-	regparse++;
-	if (ISMULT(*regparse))
-		FAIL("nested *?+");
-
-	return(ret);
-}
-
-/*
- - regatom - the lowest level
- *
- * Optimization:  gobbles an entire sequence of ordinary characters so that
- * it can turn them into a single node, which is smaller to store and
- * faster to run.  Backslashed characters are exceptions, each becoming a
- * separate node; the code is simpler that way and it's not worth fixing.
- */
-static char *
-regatom(flagp)
-int *flagp;
-{
-	register char *ret;
-	int flags;
-
-	*flagp = WORST;		/* Tentatively. */
-
-	switch (*regparse++) {
-	/* FIXME: these chars only have meaning at beg/end of pat? */
-	case '^':
-		ret = regnode(BOL);
-		break;
-	case '$':
-		ret = regnode(EOL);
-		break;
-	case '.':
-		ret = regnode(ANY);
-		*flagp |= HASWIDTH|SIMPLE;
-		break;
-	case '[': {
-			register int class;
-			register int classend;
-
-			if (*regparse == '^') {	/* Complement of range. */
-				ret = regnode(ANYBUT);
-				regparse++;
-			} else
-				ret = regnode(ANYOF);
-			if (*regparse == ']' || *regparse == '-')
-				regc(*regparse++);
-			while (*regparse != '\0' && *regparse != ']') {
-				if (*regparse == '-') {
-					regparse++;
-					if (*regparse == ']' || *regparse == '\0')
-						regc('-');
-					else {
-						class = UCHARAT(regparse-2)+1;
-						classend = UCHARAT(regparse);
-						if (class > classend+1)
-							FAIL("invalid [] range");
-						for (; class <= classend; class++)
-							regc(class);
-						regparse++;
-					}
-				} else
-					regc(*regparse++);
-			}
-			regc('\0');
-			if (*regparse != ']')
-				FAIL("unmatched []");
-			regparse++;
-			*flagp |= HASWIDTH|SIMPLE;
-		}
-		break;
-	case '(':
-		ret = reg(1, &flags);
-		if (ret == NULL)
-			return(NULL);
-		*flagp |= flags&(HASWIDTH|SPSTART);
-		break;
-	case '\0':
-	case '|':
-	case '\n':
-	case ')':
-		FAIL("internal urp");	/* Supposed to be caught earlier. */
-		break;
-	case '?':
-	case '+':
-	case '*':
-		FAIL("?+* follows nothing");
-		break;
-	case '\\':
-		switch (*regparse++) {
-		case '\0':
-			FAIL("trailing \\");
-			break;
-		case '<':
-			ret = regnode(WORDA);
-			break;
-		case '>':
-			ret = regnode(WORDZ);
-			break;
-		/* FIXME: Someday handle \1, \2, ... */
-		default:
-			/* Handle general quoted chars in exact-match routine */
-			goto de_fault;
-		}
-		break;
-	de_fault:
-	default:
-		/*
-		 * Encode a string of characters to be matched exactly.
-		 *
-		 * This is a bit tricky due to quoted chars and due to
-		 * '*', '+', and '?' taking the SINGLE char previous
-		 * as their operand.
-		 *
-		 * On entry, the char at regparse[-1] is going to go
-		 * into the string, no matter what it is.  (It could be
-		 * following a \ if we are entered from the '\' case.)
-		 *
-		 * Basic idea is to pick up a good char in  ch  and
-		 * examine the next char.  If it's *+? then we twiddle.
-		 * If it's \ then we frozzle.  If it's other magic char
-		 * we push  ch  and terminate the string.  If none of the
-		 * above, we push  ch  on the string and go around again.
-		 *
-		 *  regprev  is used to remember where "the current char"
-		 * starts in the string, if due to a *+? we need to back
-		 * up and put the current char in a separate, 1-char, string.
-		 * When  regprev  is NULL,  ch  is the only char in the
-		 * string; this is used in *+? handling, and in setting
-		 * flags |= SIMPLE at the end.
-		 */
-		{
-			char *regprev;
-			register char ch = 0;
-
-			regparse--;			/* Look at cur char */
-			ret = regnode(EXACTLY);
-			for ( regprev = 0 ; ; ) {
-				ch = *regparse++;	/* Get current char */
-				switch (*regparse) {	/* look at next one */
-
-				default:
-					regc(ch);	/* Add cur to string */
-					break;
-
-				case '.': case '[': case '(':
-				case ')': case '|': case '\n':
-				case '$': case '^':
-				case '\0':
-				/* FIXME, $ and ^ should not always be magic */
-				magic:
-					regc(ch);	/* dump cur char */
-					goto done;	/* and we are done */
-
-				case '?': case '+': case '*':
-					if (!regprev)	/* If just ch in str, */
-						goto magic;	/* use it */
-					/* End mult-char string one early */
-					regparse = regprev; /* Back up parse */
-					goto done;
-
-				case '\\':
-					regc(ch);	/* Cur char OK */
-					switch (regparse[1]){ /* Look after \ */
-					case '\0':
-					case '<':
-					case '>':
-					/* FIXME: Someday handle \1, \2, ... */
-						goto done; /* Not quoted */
-					default:
-						/* Backup point is \, scan							 * point is after it. */
-						regprev = regparse;
-						regparse++;
-						continue;	/* NOT break; */
-					}
-				}
-				regprev = regparse;	/* Set backup point */
-			}
-		done:
-			regc('\0');
-			*flagp |= HASWIDTH;
-			if (!regprev)		/* One char? */
-				*flagp |= SIMPLE;
-		}
-		break;
-	}
-
-	return(ret);
-}
-
-/*
- - regnode - emit a node
- */
-static char *			/* Location. */
-regnode(op)
-char op;
-{
-	register char *ret;
-	register char *ptr;
-
-	ret = regcode;
-	if (ret == &regdummy) {
-		regsize += 3;
-		return(ret);
-	}
-
-	ptr = ret;
-	*ptr++ = op;
-	*ptr++ = '\0';		/* Null "next" pointer. */
-	*ptr++ = '\0';
-	regcode = ptr;
-
-	return(ret);
-}
-
-/*
- - regc - emit (if appropriate) a byte of code
- */
-static void
-regc(b)
-char b;
-{
-	if (regcode != &regdummy)
-		*regcode++ = b;
-	else
-		regsize++;
-}
-
-/*
- - reginsert - insert an operator in front of already-emitted operand
- *
- * Means relocating the operand.
- */
-static void
-reginsert(op, opnd)
-char op;
-char *opnd;
-{
-	register char *src;
-	register char *dst;
-	register char *place;
-
-	if (regcode == &regdummy) {
-		regsize += 3;
-		return;
-	}
-
-	src = regcode;
-	regcode += 3;
-	dst = regcode;
-	while (src > opnd)
-		*--dst = *--src;
-
-	place = opnd;		/* Op node, where operand used to be. */
-	*place++ = op;
-	*place++ = '\0';
-	*place++ = '\0';
-}
-
-/*
- - regtail - set the next-pointer at the end of a node chain
- */
-static void
-regtail(p, val)
-char *p;
-char *val;
-{
-	register char *scan;
-	register char *temp;
-	register int offset;
-
-	if (p == &regdummy)
-		return;
-
-	/* Find last node. */
-	scan = p;
-	for (;;) {
-		temp = regnext(scan);
-		if (temp == NULL)
-			break;
-		scan = temp;
-	}
-
-	if (OP(scan) == BACK)
-		offset = scan - val;
-	else
-		offset = val - scan;
-	*(scan+1) = (offset>>8)&0377;
-	*(scan+2) = offset&0377;
-}
-
-/*
- - regoptail - regtail on operand of first argument; nop if operandless
- */
-static void
-regoptail(p, val)
-char *p;
-char *val;
-{
-	/* "Operandless" and "op != BRANCH" are synonymous in practice. */
-	if (p == NULL || p == &regdummy || OP(p) != BRANCH)
-		return;
-	regtail(OPERAND(p), val);
-}
-
-/*
- * regexec and friends
- */
-
-/*
- * Global work variables for regexec().
- */
-static char *reginput;		/* String-input pointer. */
-static char *regbol;		/* Beginning of input, for ^ check. */
-static char **regstartp;	/* Pointer to startp array. */
-static char **regendp;		/* Ditto for endp. */
-
-/*
- * Forwards.
- */
-STATIC int regtry (const regexp *, const char *);
-STATIC int regmatch (char *);
-STATIC int regrepeat (char *);
-
-#ifdef DEBUG
-int regnarrate = 0;
-void regdump __P((regexp *));
-STATIC char *regprop __P((char *));
-#endif
-
-/*
- - regexec - match a regexp against a string
- */
-int
-regexec(prog, string)
-register const regexp *prog;
-register const char *string;
-{
-	register char *s;
-
-	/* Be paranoid... */
-	if (prog == NULL || string == NULL) {
-		regerror("NULL parameter");
-		return(0);
-	}
-
-	/* Check validity of program. */
-	if (UCHARAT(prog->program) != MAGIC) {
-		regerror("corrupted program");
-		return(0);
-	}
-
-	/* If there is a "must appear" string, look for it. */
-	if (prog->regmust != NULL) {
-		s = (char *)string;
-		while ((s = strchr(s, prog->regmust[0])) != NULL) {
-			if (strncmp(s, prog->regmust, prog->regmlen) == 0)
-				break;	/* Found it. */
-			s++;
-		}
-		if (s == NULL)	/* Not present. */
-			return(0);
-	}
-
-	/* Mark beginning of line for ^ . */
-	regbol = (char *)string;
-
-	/* Simplest case:  anchored match need be tried only once. */
-	if (prog->reganch)
-		return(regtry(prog, string));
-
-	/* Messy cases:  unanchored match. */
-	s = (char *)string;
-	if (prog->regstart != '\0')
-		/* We know what char it must start with. */
-		while ((s = strchr(s, prog->regstart)) != NULL) {
-			if (regtry(prog, s))
-				return(1);
-			s++;
-		}
-	else
-		/* We don't -- general case. */
-		do {
-			if (regtry(prog, s))
-				return(1);
-		} while (*s++ != '\0');
-
-	/* Failure. */
-	return(0);
-}
-
-/*
- - regtry - try match at specific point
- */
-static int			/* 0 failure, 1 success */
-regtry(prog, string)
-const regexp *prog;
-const char *string;
-{
-	register int i;
-	register char **sp;
-	register char **ep;
-
-	reginput = (char *)string;				/* XXX */
-	regstartp = (char **)prog->startp;			/* XXX */
-	regendp = (char **)prog->endp;				/* XXX */
-
-	sp = (char **)prog->startp;				/* XXX */
-	ep = (char **)prog->endp;				/* XXX */
-	for (i = NSUBEXP; i > 0; i--) {
-		*sp++ = NULL;
-		*ep++ = NULL;
-	}
-	if (regmatch((char *)prog->program + 1)) {		/* XXX */
-		((regexp *)prog)->startp[0] = (char *)string;	/* XXX */
-		((regexp *)prog)->endp[0] = reginput;		/* XXX */
-		return(1);
-	} else
-		return(0);
-}
-
-/*
- - regmatch - main matching routine
- *
- * Conceptually the strategy is simple:  check to see whether the current
- * node matches, call self recursively to see whether the rest matches,
- * and then act accordingly.  In practice we make some effort to avoid
- * recursion, in particular by going through "ordinary" nodes (that don't
- * need to know whether the rest of the match failed) by a loop instead of
- * by recursion.
- */
-static int			/* 0 failure, 1 success */
-regmatch(prog)
-char *prog;
-{
-	register char *scan;	/* Current node. */
-	char *next;		/* Next node. */
-
-	scan = prog;
-#ifdef DEBUG
-	if (scan != NULL && regnarrate)
-		fprintf(stderr, "%s(\n", regprop(scan));
-#endif
-	while (scan != NULL) {
-#ifdef DEBUG
-		if (regnarrate)
-			fprintf(stderr, "%s...\n", regprop(scan));
-#endif
-		next = regnext(scan);
-
-		switch (OP(scan)) {
-		case BOL:
-			if (reginput != regbol)
-				return(0);
-			break;
-		case EOL:
-			if (*reginput != '\0')
-				return(0);
-			break;
-		case WORDA:
-			/* Must be looking at a letter, digit, or _ */
-			if ((!isalnum(*reginput)) && *reginput != '_')
-				return(0);
-			/* Prev must be BOL or nonword */
-			if (reginput > regbol &&
-			    (isalnum(reginput[-1]) || reginput[-1] == '_'))
-				return(0);
-			break;
-		case WORDZ:
-			/* Must be looking at non letter, digit, or _ */
-			if (isalnum(*reginput) || *reginput == '_')
-				return(0);
-			/* We don't care what the previous char was */
-			break;
-		case ANY:
-			if (*reginput == '\0')
-				return(0);
-			reginput++;
-			break;
-		case EXACTLY: {
-				register int len;
-				register char *opnd;
-
-				opnd = OPERAND(scan);
-				/* Inline the first character, for speed. */
-				if (*opnd != *reginput)
-					return(0);
-				len = strlen(opnd);
-				if (len > 1 && strncmp(opnd, reginput, len) != 0)
-					return(0);
-				reginput += len;
-			}
-			break;
-		case ANYOF:
-			if (*reginput == '\0' || strchr(OPERAND(scan), *reginput) == NULL)
-				return(0);
-			reginput++;
-			break;
-		case ANYBUT:
-			if (*reginput == '\0' || strchr(OPERAND(scan), *reginput) != NULL)
-				return(0);
-			reginput++;
-			break;
-		case NOTHING:
-			break;
-		case BACK:
-			break;
-		case OPEN+1:
-		case OPEN+2:
-		case OPEN+3:
-		case OPEN+4:
-		case OPEN+5:
-		case OPEN+6:
-		case OPEN+7:
-		case OPEN+8:
-		case OPEN+9: {
-				register int no;
-				register char *save;
-
-				no = OP(scan) - OPEN;
-				save = reginput;
-
-				if (regmatch(next)) {
-					/*
-					 * Don't set startp if some later
-					 * invocation of the same parentheses
-					 * already has.
-					 */
-					if (regstartp[no] == NULL)
-						regstartp[no] = save;
-					return(1);
-				} else
-					return(0);
-			}
-			break;
-		case CLOSE+1:
-		case CLOSE+2:
-		case CLOSE+3:
-		case CLOSE+4:
-		case CLOSE+5:
-		case CLOSE+6:
-		case CLOSE+7:
-		case CLOSE+8:
-		case CLOSE+9: {
-				register int no;
-				register char *save;
-
-				no = OP(scan) - CLOSE;
-				save = reginput;
-
-				if (regmatch(next)) {
-					/*
-					 * Don't set endp if some later
-					 * invocation of the same parentheses
-					 * already has.
-					 */
-					if (regendp[no] == NULL)
-						regendp[no] = save;
-					return(1);
-				} else
-					return(0);
-			}
-			break;
-		case BRANCH: {
-				register char *save;
-
-				if (OP(next) != BRANCH)		/* No choice. */
-					next = OPERAND(scan);	/* Avoid recursion. */
-				else {
-					do {
-						save = reginput;
-						if (regmatch(OPERAND(scan)))
-							return(1);
-						reginput = save;
-						scan = regnext(scan);
-					} while (scan != NULL && OP(scan) == BRANCH);
-					return(0);
-					/* NOTREACHED */
-				}
-			}
-			break;
-		case STAR:
-		case PLUS: {
-				register char nextch;
-				register int no;
-				register char *save;
-				register int min;
-
-				/*
-				 * Lookahead to avoid useless match attempts
-				 * when we know what character comes next.
-				 */
-				nextch = '\0';
-				if (OP(next) == EXACTLY)
-					nextch = *OPERAND(next);
-				min = (OP(scan) == STAR) ? 0 : 1;
-				save = reginput;
-				no = regrepeat(OPERAND(scan));
-				while (no >= min) {
-					/* If it could work, try it. */
-					if (nextch == '\0' || *reginput == nextch)
-						if (regmatch(next))
-							return(1);
-					/* Couldn't or didn't -- back up. */
-					no--;
-					reginput = save + no;
-				}
-				return(0);
-			}
-			break;
-		case END:
-			return(1);	/* Success! */
-			break;
-		default:
-			regerror("memory corruption");
-			return(0);
-			break;
-		}
-
-		scan = next;
-	}
-
-	/*
-	 * We get here only if there's trouble -- normally "case END" is
-	 * the terminating point.
-	 */
-	regerror("corrupted pointers");
-	return(0);
-}
-
-/*
- - regrepeat - repeatedly match something simple, report how many
- */
-static int
-regrepeat(p)
-char *p;
-{
-	register int count = 0;
-	register char *scan;
-	register char *opnd;
-
-	scan = reginput;
-	opnd = OPERAND(p);
-	switch (OP(p)) {
-	case ANY:
-		count = strlen(scan);
-		scan += count;
-		break;
-	case EXACTLY:
-		while (*opnd == *scan) {
-			count++;
-			scan++;
-		}
-		break;
-	case ANYOF:
-		while (*scan != '\0' && strchr(opnd, *scan) != NULL) {
-			count++;
-			scan++;
-		}
-		break;
-	case ANYBUT:
-		while (*scan != '\0' && strchr(opnd, *scan) == NULL) {
-			count++;
-			scan++;
-		}
-		break;
-	default:		/* Oh dear.  Called inappropriately. */
-		regerror("internal foulup");
-		count = 0;	/* Best compromise. */
-		break;
-	}
-	reginput = scan;
-
-	return(count);
-}
-
-/*
- - regnext - dig the "next" pointer out of a node
- */
-static char *
-regnext(p)
-register char *p;
-{
-	register int offset;
-
-	if (p == &regdummy)
-		return(NULL);
-
-	offset = NEXT(p);
-	if (offset == 0)
-		return(NULL);
-
-	if (OP(p) == BACK)
-		return(p-offset);
-	else
-		return(p+offset);
-}
-
-#ifdef DEBUG
-
-/*
- - regdump - dump a regexp onto stdout in vaguely comprehensible form
- */
-void
-regdump(r)
-regexp *r;
-{
-	register char *s;
-	register char op = EXACTLY;	/* Arbitrary non-END op. */
-	register char *next;
-	extern char *strchr();
-
-
-	s = r->program + 1;
-	while (op != END) {	/* While that wasn't END last time... */
-		op = OP(s);
-		printf("%2d%s", s-r->program, regprop(s));	/* Where, what. */
-		next = regnext(s);
-		if (next == NULL)		/* Next ptr. */
-			printf("(0)");
-		else
-			printf("(%d)", (s-r->program)+(next-s));
-		s += 3;
-		if (op == ANYOF || op == ANYBUT || op == EXACTLY) {
-			/* Literal string, where present. */
-			while (*s != '\0') {
-				putchar(*s);
-				s++;
-			}
-			s++;
-		}
-		putchar('\n');
-	}
-
-	/* Header fields of interest. */
-	if (r->regstart != '\0')
-		printf("start `%c' ", r->regstart);
-	if (r->reganch)
-		printf("anchored ");
-	if (r->regmust != NULL)
-		printf("must have \"%s\"", r->regmust);
-	printf("\n");
-}
-
-/*
- - regprop - printable representation of opcode
- */
-static char *
-regprop(op)
-char *op;
-{
-	register char *p;
-	static char buf[50];
-
-	(void) strcpy(buf, ":");
-
-	switch (OP(op)) {
-	case BOL:
-		p = "BOL";
-		break;
-	case EOL:
-		p = "EOL";
-		break;
-	case ANY:
-		p = "ANY";
-		break;
-	case ANYOF:
-		p = "ANYOF";
-		break;
-	case ANYBUT:
-		p = "ANYBUT";
-		break;
-	case BRANCH:
-		p = "BRANCH";
-		break;
-	case EXACTLY:
-		p = "EXACTLY";
-		break;
-	case NOTHING:
-		p = "NOTHING";
-		break;
-	case BACK:
-		p = "BACK";
-		break;
-	case END:
-		p = "END";
-		break;
-	case OPEN+1:
-	case OPEN+2:
-	case OPEN+3:
-	case OPEN+4:
-	case OPEN+5:
-	case OPEN+6:
-	case OPEN+7:
-	case OPEN+8:
-	case OPEN+9:
-		sprintf(buf+strlen(buf), "OPEN%d", OP(op)-OPEN);
-		p = NULL;
-		break;
-	case CLOSE+1:
-	case CLOSE+2:
-	case CLOSE+3:
-	case CLOSE+4:
-	case CLOSE+5:
-	case CLOSE+6:
-	case CLOSE+7:
-	case CLOSE+8:
-	case CLOSE+9:
-		sprintf(buf+strlen(buf), "CLOSE%d", OP(op)-CLOSE);
-		p = NULL;
-		break;
-	case STAR:
-		p = "STAR";
-		break;
-	case PLUS:
-		p = "PLUS";
-		break;
-	case WORDA:
-		p = "WORDA";
-		break;
-	case WORDZ:
-		p = "WORDZ";
-		break;
-	default:
-		regerror("corrupted opcode");
-		break;
-	}
-	if (p != NULL)
-		(void) strcat(buf, p);
-	return(buf);
-}
-#endif
-
-/*
- * The following is provided for those people who do not have strcspn() in
- * their C libraries.  They should get off their butts and do something
- * about it; at least one public-domain implementation of those (highly
- * useful) string routines has been published on Usenet.
- */
-#ifdef STRCSPN
-/*
- * strcspn - find length of initial segment of s1 consisting entirely
- * of characters not from s2
- */
-
-static int
-strcspn(s1, s2)
-char *s1;
-char *s2;
-{
-	register char *scan1;
-	register char *scan2;
-	register int count;
-
-	count = 0;
-	for (scan1 = s1; *scan1 != '\0'; scan1++) {
-		for (scan2 = s2; *scan2 != '\0';)	/* ++ moved down. */
-			if (*scan1 == *scan2++)
-				return(count);
-		count++;
-	}
-	return(count);
-}
-#endif
diff --git a/winsup/cygwin/regexp/regsub.c b/winsup/cygwin/regexp/regsub.c
deleted file mode 100644
index e544072..0000000
--- a/winsup/cygwin/regexp/regsub.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * regsub
- *
- *	Copyright (c) 1986 by University of Toronto.
- *	Written by Henry Spencer.  Not derived from licensed software.
- *
- *	Permission is granted to anyone to use this software for any
- *	purpose on any computer system, and to redistribute it freely,
- *	subject to the following restrictions:
- *
- *	1. The author is not responsible for the consequences of use of
- *		this software, no matter how awful, even if they arise
- *		from defects in it.
- *
- *	2. The origin of this software must not be misrepresented, either
- *		by explicit claim or by omission.
- *
- *	3. Altered versions must be plainly marked as such, and must not
- *		be misrepresented as being the original software.
- */
-
-#if 0
-#ifndef lint
-static char *rcsid = "$Id$";
-#endif /* not lint */
-#endif
-
-#include "regexp.h"
-#include <stdio.h>
-#include <string.h>
-#include "regmagic.h"
-
-#ifndef CHARBITS
-#define	UCHARAT(p)	((int)*(unsigned char *)(p))
-#else
-#define	UCHARAT(p)	((int)*(p)&CHARBITS)
-#endif
-
-/*
- - regsub - perform substitutions after a regexp match
- */
-void
-regsub(prog, source, dest)
-const regexp *prog;
-const char *source;
-char *dest;
-{
-	register char *src;
-	register char *dst;
-	register char c;
-	register int no;
-	register int len;
-
-	if (prog == NULL || source == NULL || dest == NULL) {
-		regerror("NULL parm to regsub");
-		return;
-	}
-	if (UCHARAT(prog->program) != MAGIC) {
-		regerror("damaged regexp fed to regsub");
-		return;
-	}
-
-	src = (char *)source;
-	dst = dest;
-	while ((c = *src++) != '\0') {
-		if (c == '&')
-			no = 0;
-		else if (c == '\\' && '0' <= *src && *src <= '9')
-			no = *src++ - '0';
-		else
-			no = -1;
-		if (no < 0) {	/* Ordinary character. */
-			if (c == '\\' && (*src == '\\' || *src == '&'))
-				c = *src++;
-			*dst++ = c;
-		} else if (prog->startp[no] != NULL && prog->endp[no] != NULL) {
-			len = prog->endp[no] - prog->startp[no];
-			(void) strncpy(dst, prog->startp[no], len);
-			dst += len;
-			if (len != 0 && *(dst-1) == '\0') {	/* strncpy hit NUL. */
-				regerror("damaged match string");
-				return;
-			}
-		}
-	}
-	*dst++ = '\0';
-}
diff --git a/winsup/cygwin/test.c b/winsup/cygwin/test.c
deleted file mode 100644
index a7c6166..0000000
--- a/winsup/cygwin/test.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/* test.c: misc Cygwin testing code
-
-   Copyright 1996, 1998, 1999, 2000, 2001 Red Hat, Inc.
-
-This file is part of Cygwin.
-
-This software is a copyrighted work licensed under the terms of the
-Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
-details. */
-
-#include <stdio.h>
-#include <windows.h>
-
-char a[] ="This is static data";
-
-void
-test1()
-{
-  int depth = 0;
-  while (depth < 5) 
-    {
-      int  r;
-      printf ("about to fork %d\n", depth);
-
-      r = fork ();
-
-      if (r == 0)
-	{
-	  int res;
-	  depth++;
-	  printf ("************Depth is %d\n", depth);
-	  sleep (1);
-	}
-      else 
-	{
-	  printf ("This is the parent, quitting %d\n", depth);
-	  sleep (1);
-	  exit (1);
-	}
-      printf ("done loop, depth %d\n", depth);
-    }
-}
-
-#define N 10
-int v[N];
-startup ()
-{
-  int i;
-  for (i = 0; i < N; i++)
-    {
-      int r;
-      fflush (stdout);
-      r = fork ();
-      if (r) 
-	{
-	  v[i] = r;
-	  printf ("started %d, were'id %d\n", v[i], GetCurrentProcessId ());
-	  fflush (stdout);
-	}
-      else
-	{
-	  /* running the child, sleep a bit and exit. */
-	  printf ("the fork said 0, were %d\n", GetCurrentProcessId ());
-	  fflush (stdout);
-  sleep (2);
-	  printf ("Running, and exiting %d\n", i);
-	  fflush (stdout);
-	  _exit (i + 0x30);
-	}
-    }
-}
-
-test2()
-{
-  int i;
-  startup ();
-  sleep (1);
-  /* Wait for them one by one */
-  for (i = 0; i < N; i++) 
-    {
-      int res;
-      
-      waitpid (v[i], &res, 0);
-      printf ("Process %d gave res %x\n", v[i], res);
-      if (res != (0x30 + i) << 8)
-	printf ("***** BAD *** Process %d gave res %x\n", v[i], res);
-    }
-}
-
-test3()
-{
-  int i;
-  startup ();
-  /* Wait for them all at the same time */
-  for (i = 0; i < N; i++) 
-    {
-      int res;
-      wait (&res);
-      printf ("Got res %x\n", res);
-    }
-}
-
-test5()
-{
-  char *c = strdup ("HI STEVE");
-  printf ("c is %s\n", c);
-  free (c);
-}
-
-int count;
-
-main (int ac, char **av)
-{
-  int r;
-  int done;
-  int test;
-  fprintf (stderr,"TO STDERR\n");
-  if (ac < 2) {
-		printf ("usage: test <n>\n");
-		exit (2);
-	      }
-  test = atoi (av[1]);
-
-  printf ("%d %d Hi steve, about to start fork test %d %d.\n",getpid (), count++, test,
-	 GetCurrentProcessId ());
-fflush (stdout);
-  switch (test) 
-    {
-    case 1:
-      test1();
-      break;
-    case 2:
-      test2();
-      break;
-    case 3:
-      test3();
-      break;
-    case 4:
-SetConsoleTextAttribute (GetStdHandle (STD_OUTPUT_HANDLE), FOREGROUND_RED);
-break;
-    case 5:
-      test5();
-break;
-    }
-
-}
-
-free ()
-{
-  printf ("MY FREE!\n");
-}
-
-char b[100000];
-int i;
-
-malloc (x)
-{
-char *r = b + i;
-i += x;
-return r;
-}
-
-realloc ()
-{
-}