BSD 4_3 release

[unix-history] / usr / src / etc / htable / scan.l

%{
/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/

#ifndef lint
static char sccsid[] = "@(#)scan.l      5.4 (Berkeley) 4/19/86";
#endif not lint

#include "y.tab.h"
#include "htable.h"
%}

BLANK   [ \t]
DIGIT   [0-9]
ALPHA   [A-Za-z]
ANUM    [0-9A-Za-z]
NAMECHR [0-9A-Za-z./-]

%%
"NET"           {
                       yylval.number = KW_NET;
                       return (KEYWORD);
               }

"GATEWAY"       {
                       yylval.number = KW_GATEWAY;
                       return (KEYWORD);
               }

"HOST"          {
                       yylval.number = KW_HOST;
                       return (KEYWORD);
               }

{ALPHA}{NAMECHR}*{ANUM} {
                       yylval.namelist = newname(yytext);
                       return (NAME);
               }

{ALPHA}         {
                       yylval.namelist = newname(yytext);
                       return (NAME);
               }

{DIGIT}+{ALPHA}{NAMECHR}* {
                       fprintf(stderr, "Warning: nonstandard name \"%s\"\n",
                               yytext);
                       yylval.namelist = newname(yytext);
                       return (NAME);
               }

{DIGIT}+        {
                       yylval.number = atoi(yytext);
                       return (NUMBER);
               }

"."             return ('.');
":"             return (':');
","             return (',');
"/"             return ('/');
";".*           ;
"\n"{BLANK}+    ;
{BLANK}+        ;
"\n"            return (END);
.               fprintf(stderr, "Illegal char: '%s'\n", yytext);

%%

yywrap()
{
       return (1);
}