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Annotation of 43BSDTahoe/etc/htable/scan.l, revision 1.1.1.1

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     5.6 (Berkeley) 6/18/88";
                     22: #endif /* not lint */
                     23: 
                     24: #include "y.tab.h"
                     25: #include "htable.h"
                     26: %}
                     27: 
                     28: BLANK  [ \t]
                     29: DIGIT  [0-9]
                     30: ALPHA  [A-Za-z]
                     31: ANUM   [0-9A-Za-z]
                     32: NAMECHR        [0-9A-Za-z./-]
                     33: 
                     34: %%
                     35: "NET"          {
                     36:                        yylval.number = KW_NET;
                     37:                        return (KEYWORD);
                     38:                }
                     39: 
                     40: "GATEWAY"      {
                     41:                        yylval.number = KW_GATEWAY;
                     42:                        return (KEYWORD);
                     43:                }
                     44: 
                     45: "HOST"         {
                     46:                        yylval.number = KW_HOST;
                     47:                        return (KEYWORD);
                     48:                }
                     49: 
                     50: {ALPHA}{NAMECHR}*{ANUM}        {
                     51:                        yylval.namelist = newname(yytext);
                     52:                        return (NAME);
                     53:                }
                     54: 
                     55: {ALPHA}                {
                     56:                        yylval.namelist = newname(yytext);
                     57:                        return (NAME);
                     58:                }
                     59: 
                     60: {DIGIT}+{ALPHA}{NAMECHR}* {
                     61:                        fprintf(stderr, "Warning: nonstandard name \"%s\"\n",
                     62:                                yytext);
                     63:                        yylval.namelist = newname(yytext);
                     64:                        return (NAME);
                     65:                }
                     66: 
                     67: {DIGIT}+       {
                     68:                        yylval.number = atoi(yytext);
                     69:                        return (NUMBER);
                     70:                }
                     71: 
                     72: "."            return ('.');
                     73: ":"            return (':');
                     74: ","            return (',');
                     75: "/"            return ('/');
                     76: ";".*          ;
                     77: "\n"{BLANK}+   ;
                     78: {BLANK}+       ;
                     79: "\n"           return (END);
                     80: .              fprintf(stderr, "Illegal char: '%s'\n", yytext);
                     81: 
                     82: %%
                     83: 
                     84: yywrap()
                     85: {
                     86:        return (1);
                     87: }

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