Implementation and test cases for the R6RS (rnrs records procedural) library,

along with its dependencies.

* module/Makefile.am: Add new R6RS libraries below to RNRS_SOURCES.
* module/rnrs/6/conditions.scm, exceptions.scm, syntax-case.scm: New files.
* module/rnrs/io/6/simple.scm: New file.
* module/rnrs/records/6/procedural.scm, syntactic.scm: New files.
* test-suite/Makefile.am: Add tests/r6rs-records-procedural.test to SCM_TESTS.
* test-suite/tests/r6rs-records-procedural.test: New file.

module/rnrs/6/syntax-case.scm

@@ -0,0 +1,55 @@
+;;; syntax-case.scm --- R6RS support for `syntax-case' macros
+
+;;      Copyright (C) 2010 Free Software Foundation, Inc.
+;;
+;; This library is free software; you can redistribute it and/or
+;; modify it under the terms of the GNU Lesser General Public
+;; License as published by the Free Software Foundation; either
+;; version 3 of the License, or (at your option) any later version.
+;; 
+;; This library 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
+;; Lesser General Public License for more details.
+;; 
+;; You should have received a copy of the GNU Lesser General Public
+;; License along with this library; if not, write to the Free Software
+;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+
+(library (rnrs syntax-case (6))
+  (export make-variable-transformer
+	  syntax-case
+	  syntax
+	  
+	  identifier?
+	  bound-identifier=?
+	  free-identifier=?
+
+	  syntax->datum
+	  datum->syntax
+	  generate-temporaries
+	  with-syntax
+
+	  quasisyntax
+	  unsyntax
+	  unsyntax-splicing
+
+	  syntax-violation)
+  (import (only (guile) syntax-case
+		        syntax
+		        
+		        identifier?
+			bound-identifier=?
+			free-identifier=?
+			
+			syntax->datum
+			datum->syntax
+			generate-temporaries
+			with-syntax
+
+			quasisyntax
+			unsyntax
+			unsyntax-splicing
+
+			syntax-violation)))