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Annotation of 43BSDReno/usr.sbin/htable/scan.l, revision 1.1

1.1     ! root        1: %{
        !             2: 
        !             3: /*
        !             4:  * Copyright (c) 1983 Regents of the University of California.
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms are permitted
        !             8:  * provided that the above copyright notice and this paragraph are
        !             9:  * duplicated in all such forms and that any documentation,
        !            10:  * advertising materials, and other materials related to such
        !            11:  * distribution and use acknowledge that the software was developed
        !            12:  * by the University of California, Berkeley.  The name of the
        !            13:  * University may not be used to endorse or promote products derived
        !            14:  * from this software without specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            17:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: static char sccsid[] = "@(#)scan.l     5.7 (Berkeley) 6/25/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: extern int yylineno;
        !            25: int yylineno = 1;
        !            26: 
        !            27: #include "y.tab.h"
        !            28: #include "htable.h"
        !            29: %}
        !            30: 
        !            31: BLANK  [ \t]
        !            32: DIGIT  [0-9]
        !            33: ALPHA  [A-Za-z]
        !            34: ANUM   [0-9A-Za-z]
        !            35: NAMECHR        [0-9A-Za-z./-]
        !            36: 
        !            37: %%
        !            38: "NET"          {
        !            39:                        yylval.number = KW_NET;
        !            40:                        return (KEYWORD);
        !            41:                }
        !            42: 
        !            43: "GATEWAY"      {
        !            44:                        yylval.number = KW_GATEWAY;
        !            45:                        return (KEYWORD);
        !            46:                }
        !            47: 
        !            48: "HOST"         {
        !            49:                        yylval.number = KW_HOST;
        !            50:                        return (KEYWORD);
        !            51:                }
        !            52: 
        !            53: {ALPHA}{NAMECHR}*{ANUM}        {
        !            54:                        yylval.namelist = newname(yytext);
        !            55:                        return (NAME);
        !            56:                }
        !            57: 
        !            58: {ALPHA}                {
        !            59:                        yylval.namelist = newname(yytext);
        !            60:                        return (NAME);
        !            61:                }
        !            62: 
        !            63: {DIGIT}+{ALPHA}{NAMECHR}* {
        !            64:                        fprintf(stderr, "Warning: nonstandard name \"%s\"\n",
        !            65:                                yytext);
        !            66:                        yylval.namelist = newname(yytext);
        !            67:                        return (NAME);
        !            68:                }
        !            69: 
        !            70: {DIGIT}+       {
        !            71:                        yylval.number = atoi(yytext);
        !            72:                        return (NUMBER);
        !            73:                }
        !            74: 
        !            75: "."            return ('.');
        !            76: ":"            return (':');
        !            77: ","            return (',');
        !            78: "/"            return ('/');
        !            79: ";".*          ;
        !            80: "\n"{BLANK}+   ++yylineno;
        !            81: {BLANK}+       ;
        !            82: "\n"           ++yylineno; return (END);
        !            83: .              fprintf(stderr, "Illegal char: '%s'\n", yytext);
        !            84: 
        !            85: %%

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