GLK: ALAN2: Initial import of full set of interpreter files

1 files changed, 83 insertions, 0 deletions

diff --git a/engines/glk/alan2/rules.cpp b/engines/glk/alan2/rules.cpp
new file mode 100644
index 0000000000..d00d1f3955
--- /dev/null
+++ b/engines/glk/alan2/rules.cpp
@@ -0,0 +1,83 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "glk/alan2/types.h"
+#include "glk/alan2/main.h"
+#include "glk/alan2/inter.h"
+#include "glk/alan2/debug.h"
+#include "glk/alan2/exe.h"
+#include "glk/alan2/stack.h"
+
+#include "glk/alan2/rules.h"
+
+#ifdef GLK
+#include "glk/alan2/glkio.h"
+#endif
+
+namespace Glk {
+namespace Alan2 {
+
+#ifdef _PROTOTYPES_
+void rules(void)
+#else
+void rules()
+#endif
+{
+  Boolean change = TRUE;
+  int i;
+  
+  for (i = 1; !endOfTable(&ruls[i-1]); i++)
+    ruls[i-1].run = FALSE;
+  
+  while (change) {
+    change = FALSE;
+    for (i = 1; !endOfTable(&ruls[i-1]); i++) 
+      if (!ruls[i-1].run) {
+	if (trcflg) {
+	  printf("\n<RULE %d (at ", i);
+	  debugsay(cur.loc);
+	  if (!stpflg)
+	    printf("), Evaluating");
+	  else
+	    printf("), Evaluating:>\n");
+	}
+	interpret(ruls[i-1].exp);
+	if (pop()) {
+	  change = TRUE;
+	  ruls[i-1].run = TRUE;
+	  if (trcflg)
+	    if (!stpflg)
+	      printf(", Executing:>\n");
+	    else {
+	      printf("\nRULE %d (at ", i);
+	      debugsay(cur.loc);
+	      printf("), Executing:>\n");
+	    }
+	  interpret(ruls[i-1].stms);
+	} else if (trcflg && !stpflg)
+	  printf(":>\n");
+      }
+  }
+}
+
+} // End of namespace Alan2
+} // End of namespace Glk