--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/absyntax_utils/spec_init_separator.hh	Mon Jun 01 21:08:44 2009 +0200
@@ -0,0 +1,96 @@
+/*
+ * (c) 2003 Mario de Sousa
+ *
+ * Offered to the public under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2 of the
+ * License, 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.
+ *
+ * This code is made available on the understanding that it will not be
+ * used in safety-critical situations without a full and competent review.
+ */
+
+/*
+ * An IEC 61131-3 IL and ST compiler.
+ *
+ * Based on the
+ * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
+ *
+ */
+
+
+/*
+ * Separation of type specification and default value constructs
+ * (for e.g. simple_spec_init_c), into a type specificiation part,
+ * and a default value part.
+ */
+
+#include "../absyntax/absyntax.hh"
+#include "../absyntax/visitor.hh"
+
+class spec_init_sperator_c: public null_visitor_c {
+
+  private:
+    /* this is a singleton class... */
+    static spec_init_sperator_c *class_instance;
+    static spec_init_sperator_c *get_class_instance(void);
+
+  private:
+    typedef enum {search_spec, search_init} search_what_t;
+    static search_what_t search_what;
+
+  public:
+    /* the only two public functions... */
+    static symbol_c *get_spec(symbol_c *spec_init);
+
+    static symbol_c *get_init(symbol_c *spec_init);
+
+
+  private:
+
+
+  /*******************************************/
+  /* B 1.1 - Letters, digits and identifiers */
+  /*******************************************/
+  // SYM_TOKEN(identifier_c)
+  void *visit(identifier_c *symbol);
+  
+
+  /********************************/
+  /* B 1.3.3 - Derived data types */
+  /********************************/
+
+  /* simple_specification ASSIGN constant */
+  void *visit(simple_spec_init_c *symbol);
+  
+  /* subrange_specification ASSIGN signed_integer */
+  void *visit(subrange_spec_init_c *symbol);
+  
+  /*  integer_type_name '(' subrange')' */
+  void *visit(subrange_specification_c *symbol);
+  
+  /* array_specification [ASSIGN array_initialization} */
+  /* array_initialization may be NULL ! */
+  void *visit(array_spec_init_c *symbol);
+  
+  /* enumerated_specification ASSIGN enumerated_value */
+  void *visit(enumerated_spec_init_c *symbol);
+  
+  /* structure_type_name ASSIGN structure_initialization */
+  /* structure_initialization may be NULL ! */
+  //SYM_REF2(initialized_structure_c, structure_type_name, structure_initialization)
+  void *visit(initialized_structure_c *symbol);
+  
+  
+  /******************************************/
+  /* B 1.4.3 - Declaration & Initialisation */
+  /******************************************/
+  
+  /* fb_name_list ':' function_block_type_name ASSIGN structure_initialization */
+  /* structure_initialization -> may be NULL ! */
+  void *visit(fb_name_decl_c *symbol);
+};   /* class spec_init_sperator_c */