===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2000/parse/lex.c,v
retrieving revision 1.5
retrieving revision 1.9
diff -u -p -r1.5 -r1.9
--- OpenXM_contrib2/asir2000/parse/lex.c	2000/08/22 05:04:27	1.5
+++ OpenXM_contrib2/asir2000/parse/lex.c	2000/12/05 01:51:35	1.9
@@ -45,17 +45,15 @@
  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
  *
- * $OpenXM: OpenXM_contrib2/asir2000/parse/lex.c,v 1.4 2000/08/21 08:31:47 noro Exp $ 
+ * $OpenXM: OpenXM_contrib2/asir2000/parse/lex.c,v 1.8 2000/12/05 01:24:57 noro Exp $ 
 */
 #include <ctype.h>
 #include "ca.h"
 #include "al.h"
 #include "base.h"
 #include "parse.h"
-#if !defined(THINK_C)
 #include <sys/types.h>
 #include <sys/stat.h>
-#endif
 #include "y.tab.h"
 
 extern IN asir_infile;
@@ -399,6 +397,22 @@ yylex()
 		return ( c );
 }
 
+void purge_stdin()
+{
+#if defined(__FreeBSD__)
+	fpurge(stdin);
+#elif defined(linux)
+	stdin->_IO_read_end = stdin->_IO_read_base;
+	stdin->_IO_read_ptr = stdin->_IO_read_base;
+#elif defined(sparc) || defined(__alpha) || defined(__SVR4) || defined(mips)
+	stdin->_ptr = stdin->_base; stdin->_cnt = 0;
+#elif defined(VISUAL)
+	w_purge_stdin();
+#else
+--->FIXIT
+#endif
+}
+
 static int skipspace() {
 	int c,c1;
 
@@ -541,7 +555,11 @@ static int Getc() {
 			if ((c = Egetc(asir_infile->fp)) == EOF)
 				if ( NEXT(asir_infile) ) {
 					closecurrentinput();
-					c = Getc();
+					/* if the input is the top level, generate error */
+					if ( !NEXT(asir_infile) )
+						error("end-of-file detected during parsing");
+					else
+						c = Getc();
 					break;
 				} else if ( read_exec_file || do_file )
 					asir_terminate(2);