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Annotation of researchv10dc/ipc/internet/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 "htable.h"
                     25: %}
                     26: 
                     27: BLANK  [ \t]
                     28: DIGIT  [0-9]
                     29: ALPHA  [A-Za-z]
                     30: ANUM   [0-9A-Za-z]
                     31: NAMECHR        [0-9A-Za-z./-]
                     32: 
                     33: %%
                     34: "NET"          {
                     35:                        yylval.number = KW_NET;
                     36:                        return (KEYWORD);
                     37:                }
                     38: 
                     39: "GATEWAY"      {
                     40:                        yylval.number = KW_GATEWAY;
                     41:                        return (KEYWORD);
                     42:                }
                     43: 
                     44: "HOST"         {
                     45:                        yylval.number = KW_HOST;
                     46:                        return (KEYWORD);
                     47:                }
                     48: 
                     49: {ALPHA}{NAMECHR}*{ANUM}        {
                     50:                        yylval.namelist = newname(yytext);
                     51:                        return (NAME);
                     52:                }
                     53: 
                     54: {ALPHA}                {
                     55:                        yylval.namelist = newname(yytext);
                     56:                        return (NAME);
                     57:                }
                     58: 
                     59: {DIGIT}+{ALPHA}{NAMECHR}* {
                     60:                        fprintf(stderr, "Warning: nonstandard name \"%s\"\n",
                     61:                                yytext);
                     62:                        yylval.namelist = newname(yytext);
                     63:                        return (NAME);
                     64:                }
                     65: 
                     66: {DIGIT}+       {
                     67:                        yylval.number = atoi(yytext);
                     68:                        return (NUMBER);
                     69:                }
                     70: 
                     71: "."            return ('.');
                     72: ":"            return (':');
                     73: ","            return (',');
                     74: "/"            return ('/');
                     75: ";".*          ;
                     76: "\n"{BLANK}+   ;
                     77: {BLANK}+       ;
                     78: "\n"           return (END);
                     79: .              fprintf(stderr, "Illegal char: '%s'\n", yytext);
                     80: 
                     81: %%
                     82: 
                     83: yywrap()
                     84: {
                     85:        return (1);
                     86: }

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