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+%{
+/*
+ * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska Högskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * 3. Neither the name of the Institute 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 BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* $Id: lex.l,v 1.10 1999/12/02 17:05:02 joda Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include "symbol.h"
+#include "parse.h"
+
+void error_message(char *, ...);
+
+static unsigned lineno = 1;
+
+/* ","|"{"|"}"|"("|")"|"["|"]"|"|" { return *yytext; } */
+%}
+
+
+%%
+INTEGER { return INTEGER; }
+SEQUENCE { return SEQUENCE; }
+OF { return OF; }
+OCTET { return OCTET; }
+STRING { return STRING; }
+GeneralizedTime { return GeneralizedTime; }
+GeneralString { return GeneralString; }
+BIT { return BIT; }
+APPLICATION { return APPLICATION; }
+OPTIONAL { return OPTIONAL; }
+BEGIN { return TBEGIN; }
+END { return END; }
+DEFINITIONS { return DEFINITIONS; }
+EXTERNAL { return EXTERNAL; }
+[,{}()|] { return *yytext; }
+"[" { return *yytext; }
+"]" { return *yytext; }
+::= { return EEQUAL; }
+--[^\n]*\n { ; }
+-?[0-9]+ { yylval.constant = atoi(yytext); return CONSTANT; }
+[A-Za-z][-A-Za-z0-9_]* { yylval.name = strdup (yytext); return IDENTIFIER; }
+[ \t] ;
+\n { lineno++; }
+. { error_message("Ignoring char(%c)\n", *yytext); }
+%%
+
+#ifndef yywrap /* XXX */
+int
+yywrap ()
+{
+ return 1;
+}
+#endif
+
+void
+error_message (char *format, ...)
+{
+ va_list args;
+
+ va_start (args, format);
+ fprintf (stderr, ":%d: ", lineno);
+ vfprintf (stderr, format, args);
+ va_end (args);
+}
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