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Annotation of 43BSDTahoe/etc/htable/parse.y, 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[] = "@(#)parse.y    5.4 (Berkeley) 6/18/88";
        !            22: #endif /* not lint */
        !            23: 
        !            24: #include "htable.h"
        !            25: %}
        !            26: 
        !            27: %union {
        !            28:        int     number;
        !            29:        struct  addr *addrlist;
        !            30:        struct  name *namelist;
        !            31: }
        !            32: %start Table
        !            33: 
        !            34: %token                 END
        !            35: %token <number>                NUMBER KEYWORD
        !            36: %token <namelist>      NAME
        !            37: 
        !            38: %type <namelist>       Names Cputype Opsys Protos Proto
        !            39: %type <addrlist>       Addresses Address
        !            40: %%
        !            41: Table  :       Entry
        !            42:        |       Table Entry
        !            43:        ;
        !            44: 
        !            45: Entry  :       KEYWORD ':' Addresses ':' Names ':' END
        !            46:        = {
        !            47:                do_entry($1, $3, $5, NONAME, NONAME, NONAME);
        !            48:        }
        !            49:        |       KEYWORD ':' Addresses ':' Names ':' Cputype ':' END
        !            50:        = {
        !            51:                do_entry($1, $3, $5, $7, NONAME, NONAME);
        !            52:        }
        !            53:        |       KEYWORD ':' Addresses ':' Names ':' Cputype ':' Opsys ':' END
        !            54:        = {
        !            55:                do_entry($1, $3, $5, $7, $9, NONAME);
        !            56:        }
        !            57:        |       KEYWORD ':' Addresses ':' Names ':' Cputype ':' Opsys ':' ':' END
        !            58:        = {
        !            59:                do_entry($1, $3, $5, $7, $9, NONAME);
        !            60:        }
        !            61:        |       KEYWORD ':' Addresses ':' Names ':' Cputype ':' Opsys ':' Protos ':' END
        !            62:        = {
        !            63:                do_entry($1, $3, $5, $7, $9, $11);
        !            64:        }
        !            65:        |       error END
        !            66:        |       END             /* blank line */
        !            67:        ;
        !            68: 
        !            69: Addresses:     Address
        !            70:        = {
        !            71:                $$ = $1;
        !            72:        }
        !            73:        |       Address ',' Addresses
        !            74:        = {
        !            75:                $1->addr_link = $3;
        !            76:                $$ = $1;
        !            77:        }
        !            78:        ;
        !            79: 
        !            80: Address        :       NUMBER '.' NUMBER '.' NUMBER '.' NUMBER
        !            81:        = {
        !            82:                char *a;
        !            83: 
        !            84:                $$ = (struct addr *)malloc(sizeof (struct addr));
        !            85:                a = (char *)&($$->addr_val);
        !            86:                a[0] = $1; a[1] = $3; a[2] = $5; a[3] = $7;
        !            87:                $$->addr_link = NOADDR;
        !            88:        }
        !            89:        ;
        !            90: 
        !            91: Names  :       NAME
        !            92:        = {
        !            93:                $$ = $1;
        !            94:        }
        !            95:        |       NAME ',' Names
        !            96:        = {
        !            97:                $1->name_link = $3;
        !            98:                $$ = $1;
        !            99:        }
        !           100:        ;
        !           101: 
        !           102: Cputype :      /* empty */
        !           103:        = {
        !           104:                $$ = NONAME;
        !           105:        }
        !           106:        |       NAME
        !           107:        = {
        !           108:                $$ = $1;
        !           109:        }
        !           110:        ;
        !           111: 
        !           112: Opsys  :       /* empty */
        !           113:        = {
        !           114:                $$ = NONAME;
        !           115:        }
        !           116:        |       NAME
        !           117:        = {
        !           118:                $$ = $1;
        !           119:        }
        !           120:        ;
        !           121: 
        !           122: Protos :       Proto
        !           123:        = {
        !           124:                $$ = $1;
        !           125:        }
        !           126:        |       Proto ',' Protos
        !           127:        = {
        !           128:                $1->name_link = $3;
        !           129:                $$ = $1;
        !           130:        }
        !           131:        ;
        !           132: 
        !           133: Proto  :       NAME
        !           134:        = {
        !           135:                $$ = $1;
        !           136:        }
        !           137:        ;
        !           138: %%
        !           139: 
        !           140: #include <stdio.h>
        !           141: 
        !           142: extern int yylineno;
        !           143: 
        !           144: yyerror(msg)
        !           145:        char *msg;
        !           146: {
        !           147:        fprintf(stderr, "\"%s\", line %d: %s\n", infile, yylineno, msg);
        !           148: }

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