atc/lex.l

   1 %{
   2 /*      $NetBSD: lex.l,v 1.9 2015/06/19 06:02:31 dholland Exp $ */
   3
   4 /*-
   5  * Copyright (c) 1990, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * This code is derived from software contributed to Berkeley by
   9  * Ed James.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 /*
  37  * Copyright (c) 1987 by Ed James, UC Berkeley.  All rights reserved.
  38  *
  39  * Copy permission is hereby granted provided that this notice is
  40  * retained on all partial or complete copies.
  41  *
  42  * For more info on this and all of my stuff, mail edjames@berkeley.edu.
  43  */
  44
  45 #include <sys/cdefs.h>
  46 #ifndef lint
  47 #if 0
  48 static char sccsid[] = "@(#)lex.l       8.1 (Berkeley) 5/31/93";
  49 #else
  50 __RCSID("$NetBSD: lex.l,v 1.9 2015/06/19 06:02:31 dholland Exp $");
  51 #endif
  52 #endif /* not lint */
  53
  54 #undef ECHO             /* XXX: work around lex(1) vs termios lameness */
  55 #include "grammar.h"
  56
  57 extern int      line;
  58
  59 %}
  60 %option nounput noinput
  61 %%
  62 [0-9]+                  { yylval.ival = atoi(yytext);  return(ConstOp); }
  63 height                  { return(HeightOp); }
  64 width                   { return(WidthOp); }
  65 newplane                { return(NewplaneOp); }
  66 update                  { return(UpdateOp); }
  67 airport                 { return(AirportOp); }
  68 line                    { return(LineOp); }
  69 exit                    { return(ExitOp); }
  70 beacon                  { return(BeaconOp); }
  71 [wedcxzaq]              { yylval.cval = *yytext; return (DirOp); }
  72 [ \t]+                  { }
  73 #[^\n]*\n               { line++; }
  74 \n                      { line++; }
  75 .                       { return *yytext; }