6437624 RFE: Add ksh93 (as /usr/bin/ksh93) and libshell.so to OS/Net

6505835 AST tools and library (libpp) required for creating l10n messages for ksh93
PSARC/2006/550 Korn Shell 93 Integration
PSARC/2006/587 /etc/ksh.kshrc for ksh93
PSARC/2007/035 ksh93 Amendments
Contributed by Roland Mainz <roland.mainz@nrubsig.org>

--HG--
rename : usr/src/lib/libcmd/common/mapfile-vers => deleted_files/usr/src/lib/libcmd/common/mapfile-vers
rename : usr/src/lib/libcmd/common/placeholder.c => deleted_files/usr/src/lib/libcmd/common/placeholder.c

1 files changed, 54 insertions, 0 deletions

diff --git a/usr/src/lib/libast/common/regex/regexec.c b/usr/src/lib/libast/common/regex/regexec.c
new file mode 100644
index 0000000000..60acf41934
--- /dev/null
+++ b/usr/src/lib/libast/common/regex/regexec.c
@@ -0,0 +1,54 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
+*                      and is licensed under the                       *
+*                  Common Public License, Version 1.0                  *
+*                      by AT&T Knowledge Ventures                      *
+*                                                                      *
+*                A copy of the License is available at                 *
+*            http://www.opensource.org/licenses/cpl1.0.txt             *
+*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+
+/*
+ * posix regex executor
+ * single unsized-string interface
+ */
+
+#include "reglib.h"
+
+/*
+ * standard wrapper for the sized-record interface
+ */
+
+int
+regexec(const regex_t* p, const char* s, size_t nmatch, regmatch_t* match, regflags_t flags)
+{
+	if (flags & REG_STARTEND)
+	{
+		int		r;
+		int		m = match->rm_so;
+		regmatch_t*	e;
+
+		if (!(r = regnexec(p, s + m, match->rm_eo - m, nmatch, match, flags)) && m > 0)
+			for (e = match + nmatch; match < e; match++)
+				if (match->rm_so >= 0)
+				{
+					match->rm_so += m;
+					match->rm_eo += m;
+				}
+		return r;
+	}
+	return regnexec(p, s, s ? strlen(s) : 0, nmatch, match, flags);
+}