atc/lex.l

   1 %{
   2 /*      $NetBSD: lex.l,v 1.6 1998/04/09 00:32:32 tv 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. All advertising materials mentioning features or use of this software
  20  *    must display the following acknowledgement:
  21  *      This product includes software developed by the University of
  22  *      California, Berkeley and its contributors.
  23  * 4. Neither the name of the University nor the names of its contributors
  24  *    may be used to endorse or promote products derived from this software
  25  *    without specific prior written permission.
  26  *
  27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  37  * SUCH DAMAGE.
  38  */
  39
  40 /*
  41  * Copyright (c) 1987 by Ed James, UC Berkeley.  All rights reserved.
  42  *
  43  * Copy permission is hereby granted provided that this notice is
  44  * retained on all partial or complete copies.
  45  *
  46  * For more info on this and all of my stuff, mail edjames@berkeley.edu.
  47  */
  48
  49 #include <sys/cdefs.h>
  50 #ifndef lint
  51 #if 0
  52 static char sccsid[] = "@(#)lex.l       8.1 (Berkeley) 5/31/93";
  53 #else
  54 __RCSID("$NetBSD: lex.l,v 1.6 1998/04/09 00:32:32 tv Exp $");
  55 #endif
  56 #endif /* not lint */
  57
  58 #include "include.h"
  59 #undef ECHO             /* XXX: work around lex(1) vs termios lameness */
  60 #include "grammar.h"
  61
  62 extern int      line;
  63
  64 %}
  65 %%
  66 [0-9]+                  { yylval.ival = atoi(yytext);  return(ConstOp); }
  67 height                  { return(HeightOp); }
  68 width                   { return(WidthOp); }
  69 newplane                { return(NewplaneOp); }
  70 update                  { return(UpdateOp); }
  71 airport                 { return(AirportOp); }
  72 line                    { return(LineOp); }
  73 exit                    { return(ExitOp); }
  74 beacon                  { return(BeaconOp); }
  75 [wedcxzaq]              { yylval.cval = *yytext; return (DirOp); }
  76 [ \t]+                  { }
  77 #[^\n]*\n               { line++; }
  78 \n                      { line++; }
  79 .                       { return *yytext; }