Add support for POSIX regular expressions.

* regex-posix.c, regex-posix.h: New files. (Some code
is taken liberally from rx/rgx.c in the old Guile dist.)

* init.c: Include regex-posix.h.
(scm_boot_guile_1): Call scm_init_regex_posix.

* Makefile.am (EXTRA_libguile_la_SOURCES, modinclude_HEADERS):
Add regex-posix.[ch] sources.
* Makefile.in: Regenerated.

* scmconfig.h.in: Add HAVE_REGCOMP macro.  (automake is supposed
to do this automatically?  It didn't for me, bleh.)

1 files changed, 57 insertions, 0 deletions

diff --git a/libguile/regex-posix.h b/libguile/regex-posix.h
new file mode 100644
index 000000000..d72fb45c9
--- /dev/null
+++ b/libguile/regex-posix.h
@@ -0,0 +1,57 @@
+/* classes: h_files */
+
+#ifndef REGEXPOSIXH
+#define REGEXPOSIXH
+
+/*	Copyright (C) 1997 Free Software Foundation, Inc.
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; see the file COPYING.  If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * As a special exception, the Free Software Foundation gives permission
+ * for additional uses of the text contained in its release of GUILE.
+ *
+ * The exception is that, if you link the GUILE library with other files
+ * to produce an executable, this does not by itself cause the
+ * resulting executable to be covered by the GNU General Public License.
+ * Your use of that executable is in no way restricted on account of
+ * linking the GUILE library code into it.
+ *
+ * This exception does not however invalidate any other reasons why
+ * the executable file might be covered by the GNU General Public License.
+ *
+ * This exception applies only to the code released by the
+ * Free Software Foundation under the name GUILE.  If you copy
+ * code from other Free Software Foundation releases into a copy of
+ * GUILE, as the General Public License permits, the exception does
+ * not apply to the code that you add in this way.  To avoid misleading
+ * anyone as to the status of such modified files, you must delete
+ * this exception notice from them.
+ *
+ * If you write modifications of your own for GUILE, it is your choice
+ * whether to permit this exception to apply to your modifications.
+ * If you do not wish that, delete this exception notice.  
+ */
+
+#include "libguile/__scm.h"
+
+extern long scm_tc16_regex_t;
+#define SCM_RGX(X)	((regex_t *)SCM_CDR(X))
+#define SCM_RGXP(X)	(SCM_CAR(X) == (SCM)scm_tc16_regex_t)
+
+extern SCM scm_make_regexp SCM_P ((SCM pat));
+extern SCM scm_regexp_exec SCM_P ((SCM rx, SCM str, SCM start));
+extern void scm_init_regex_posix ();
+
+#endif