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+/*
+ * This file is part of flex.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+%{
+/* A template scanner file to build "scanner.c". */
+#include <stdio.h>
+#include <stdlib.h>
+%}
+
+%option 8bit prefix="test"
+%option nounput nomain noyywrap noinput
+%option warn stack never-interactive
+%x STATE_1
+
+%%
+
+<INITIAL>{
+0 yy_push_state (STATE_1);
+.|\n return 1;
+}
+<STATE_1>{
+1 yy_pop_state();
+.|\n return yy_top_state() + 1;
+}
+
+%%
+
+int
+main (int argc, char* const argv[])
+{
+ FILE* fp;
+ int i;
+
+ (void)argc;
+
+ if ((fp = fopen(argv[1],"r")) == NULL){
+ perror("Failed to open input file.");
+ return 1;
+ }
+
+ yyset_out ( stdout);
+
+ for (i=0; i < 4; ++i){
+ rewind(fp);
+ yyset_in ( fp);
+ while( yylex() )
+ ;
+ yylex_destroy();
+ }
+ printf("TEST RETURNING OK.\n");
+ return 0;
+}