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, 123 insertions, 0 deletions

diff --git a/usr/src/lib/libast/common/comp/regexp.c b/usr/src/lib/libast/common/comp/regexp.c
new file mode 100644
index 0000000000..10d67fa30d
--- /dev/null
+++ b/usr/src/lib/libast/common/comp/regexp.c
@@ -0,0 +1,123 @@
+/***********************************************************************
+*                                                                      *
+*               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
+/*
+ * <regexp.h> library support
+ */
+
+#define _REGEXP_DECLARE
+
+#include <ast.h>
+#include <regexp.h>
+#include <regex.h>
+#include <align.h>
+
+typedef struct
+{
+	regex_t		re;
+	char*		buf;
+	char*		cur;
+	unsigned int	size;
+} Env_t;
+
+static void*
+block(void* handle, void* data, size_t size)
+{
+	register Env_t*	env = (Env_t*)handle;
+
+	if (data || (size = roundof(size, ALIGN_BOUND2)) > (env->buf + env->size - env->cur))
+		return 0;
+	data = (void*)env->cur;
+	env->cur += size;
+	return data;
+}
+
+int
+_re_comp(regexp_t* re, const char* pattern, char* handle, unsigned int size)
+{
+	register Env_t*	env = (Env_t*)handle;
+	register int	n;
+
+	if (size <= sizeof(Env_t))
+		return 50;
+	env->buf = env->cur = (char*)env + sizeof(Env_t);
+	env->size = size - sizeof(Env_t);
+	regalloc(env, block, REG_NOFREE);
+	n = regcomp(&env->re, pattern, REG_LENIENT|REG_NULL);
+	switch (n)
+	{
+	case 0:
+		break;
+	case REG_ERANGE:
+		n = 11;
+		break;
+	case REG_BADBR:
+		n = 16;
+		break;
+	case REG_ESUBREG:
+		n = 25;
+		break;
+	case REG_EPAREN:
+		n = 42;
+		break;
+	case REG_EBRACK:
+		n = 49;
+		break;
+	default:
+		n = 50;
+		break;
+	}
+	re->re_nbra = env->re.re_nsub;
+	return n;
+}
+
+int
+_re_exec(regexp_t* re, const char* subject, const char* handle, int anchor)
+{
+	register Env_t*	env = (Env_t*)handle;
+	register int	n;
+	regmatch_t	match[elementsof(re->re_braslist)+1];
+
+	if (regexec(&env->re, subject, elementsof(match), match, 0) || anchor && match[0].rm_so)
+		return 0;
+	re->re_loc1 = (char*)subject + match[0].rm_so;
+	re->re_loc2 = (char*)subject + match[0].rm_eo;
+	for (n = 1; n <= env->re.re_nsub; n++)
+	{
+		re->re_braslist[n-1] = (char*)subject + match[n].rm_so;
+		re->re_braelist[n-1] = (char*)subject + match[n].rm_eo;
+	}
+	return 1;
+}
+
+char*
+_re_putc(int c)
+{
+	static Sfio_t*	sp;
+
+	if (!sp && !(sp = sfstropen()))
+		return 0;
+	if (!c)
+		return sfstruse(sp);
+	sfputc(sp, c);
+	return 0;
+}