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Annotation of 43BSDReno/games/battlestar/parse.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1983 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that: (1) source distributions retain this entire copyright
        !             7:  * notice and comment, and (2) distributions including binaries display
        !             8:  * the following acknowledgement:  ``This product includes software
        !             9:  * developed by the University of California, Berkeley and its contributors''
        !            10:  * in the documentation or other materials provided with the distribution
        !            11:  * and in all advertising materials mentioning features or use of this
        !            12:  * software. Neither the name of the University nor the names of its
        !            13:  * contributors may 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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: static char sccsid[] = "@(#)parse.c    5.3 (Berkeley) 6/1/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: #include "externs.h"
        !            25: 
        !            26: wordinit()
        !            27: {
        !            28:        register struct wlist *w;
        !            29: 
        !            30:        for (w = wlist; w->string; w++)
        !            31:                install(w);
        !            32: }
        !            33: 
        !            34: hash(s)
        !            35:        register char *s;
        !            36: {
        !            37:        register hashval = 0;
        !            38: 
        !            39:        while (*s) {
        !            40:                hashval += *s++;
        !            41:                hashval *= HASHMUL;
        !            42:                hashval &= HASHMASK;
        !            43:        }
        !            44:        return hashval;
        !            45: }
        !            46: 
        !            47: struct wlist *
        !            48: lookup(s)
        !            49:        char *s;
        !            50: {
        !            51:        register struct wlist *wp;
        !            52: 
        !            53:        for (wp = hashtab[hash(s)]; wp != NULL; wp = wp->next)
        !            54:                if (*s == *wp->string && strcmp(s, wp->string) == 0)
        !            55:                        return wp;
        !            56:        return NULL;
        !            57: }
        !            58: 
        !            59: install(wp)
        !            60:        register struct wlist *wp;
        !            61: {
        !            62:        int hashval;
        !            63: 
        !            64:        if (lookup(wp->string) == NULL) {
        !            65:                hashval = hash(wp->string);
        !            66:                wp->next = hashtab[hashval];
        !            67:                hashtab[hashval] = wp;
        !            68:        } else
        !            69:                printf("Multiply defined %s.\n", wp->string);
        !            70: }
        !            71: 
        !            72: parse()
        !            73: {
        !            74:        register struct wlist *wp;
        !            75:        register n;
        !            76: 
        !            77:        wordnumber = 0;           /* for cypher */
        !            78:        for (n = 0; n <= wordcount; n++) {
        !            79:                if ((wp = lookup(words[n])) == NULL) {
        !            80:                        wordvalue[n] = -1;
        !            81:                        wordtype[n] = -1;
        !            82:                } else {
        !            83:                        wordvalue[n] = wp -> value;
        !            84:                        wordtype[n] = wp -> article;
        !            85:                }
        !            86:        }
        !            87: }

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