atc/lex.l

   1 %{
   2 /*-
   3  * Copyright (c) 1990 The Regents of the University of California.
   4  * All rights reserved.
   5  *
   6  * This code is derived from software contributed to Berkeley by
   7  * Ed James.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by the University of
  20  *      California, Berkeley and its contributors.
  21  * 4. Neither the name of the University nor the names of its contributors
  22  *    may be used to endorse or promote products derived from this software
  23  *    without specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  35  * SUCH DAMAGE.
  36  */
  37
  38 /*
  39  * Copyright (c) 1987 by Ed James, UC Berkeley.  All rights reserved.
  40  *
  41  * Copy permission is hereby granted provided that this notice is
  42  * retained on all partial or complete copies.
  43  *
  44  * For more info on this and all of my stuff, mail edjames@berkeley.edu.
  45  */
  46
  47 #ifndef lint
  48 static char sccsid[] = "@(#)lex.l       5.2 (Berkeley) 4/30/90";
  49 #endif /* not lint */
  50
  51 #include "y.tab.h"
  52 extern int      line;
  53
  54 %}
  55 %%
  56 [0-9]+                  { yylval.ival = atoi(yytext);  return(ConstOp); }
  57 height                  { return(HeightOp); }
  58 width                   { return(WidthOp); }
  59 newplane                { return(NewplaneOp); }
  60 update                  { return(UpdateOp); }
  61 airport                 { return(AirportOp); }
  62 line                    { return(LineOp); }
  63 exit                    { return(ExitOp); }
  64 beacon                  { return(BeaconOp); }
  65 [wedcxzaq]              { yylval.cval = *yytext; return (DirOp); }
  66 [ \t]+                  { }
  67 #[^\n]*\n               { line++; }
  68 \n                      { line++; }
  69 .                       { return *yytext; }