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📄 ACKNOWLEDGEMENTS(771 B)
📄 AUTHORS(247 B)
📄 CHANGES(150.04 KB)
📄 MANIFEST(41.11 KB)
📄 Makefile.old(1.26 KB)
📄 NEW_FEATURES(2 KB)
📄 NOTES(504 B)
📄 NO_WARRANTY(156 B)
📄 README(1.37 KB)
📄 README.BTYACC(22.02 KB)
📄 VERSION(9 B)
📄 aclocal.m4(51.8 KB)
📄 btyaccpar.c(46.94 KB)
📄 btyaccpar.skel(36.6 KB)
📄 closure.c(4.18 KB)
📄 config.guess(47.31 KB)
📄 config.sub(30.87 KB)
📄 config_h.in(2.66 KB)
📄 configure(205.86 KB)
📄 configure.in(1.57 KB)
📄 defs.h(15.1 KB)
📄 descrip.mms(1.14 KB)
📄 error.c(8.83 KB)
📄 graph.c(1.92 KB)
📄 install-sh(6.96 KB)
📄 lalr.c(10.74 KB)
📄 lr0.c(9.85 KB)
📄 main.c(14.75 KB)
📄 makefile.in(3.39 KB)
📄 mkpar.c(7.71 KB)
📄 mstring.c(3.37 KB)
📄 output.c(40.19 KB)
📁 package
📄 reader.c(67.01 KB)
📄 skel2c(2.81 KB)
📄 symtab.c(1.88 KB)
📁 test
📄 verbose.c(7.37 KB)
📄 vmsbuild.com(5.46 KB)
📄 warshall.c(1.12 KB)
📄 yacc.1(12.82 KB)
📄 yaccpar.c(11.96 KB)
📄 yaccpar.skel(8.83 KB)

Editing: symtab.c

/* $Id: symtab.c,v 1.11 2014/03/26 00:17:09 Tom.Shields Exp $ */

#include "defs.h"

/* TABLE_SIZE is the number of entries in the symbol table. */
/* TABLE_SIZE must be a power of two.			    */

#define	TABLE_SIZE 1024

static bucket **symbol_table = 0;
bucket *first_symbol;
bucket *last_symbol;

static int
hash(const char *name)
{
    const char *s;
    int c, k;

assert(name && *name);
    s = name;
    k = *s;
    while ((c = *++s) != 0)
	k = (31 * k + c) & (TABLE_SIZE - 1);

return (k);
}

bucket *
make_bucket(const char *name)
{
    bucket *bp;

assert(name != 0);

bp = TMALLOC(bucket, 1);
    NO_SPACE(bp);

bp->link = 0;
    bp->next = 0;

bp->name = TMALLOC(char, strlen(name) + 1);
    NO_SPACE(bp->name);

bp->tag = 0;
    bp->value = UNDEFINED;
    bp->index = 0;
    bp->prec = 0;
    bp->class = UNKNOWN;
    bp->assoc = TOKEN;
#if defined(YYBTYACC)
    bp->args = -1;
    bp->argnames = 0;
    bp->argtags = 0;
    bp->destructor = 0;
#endif
    strcpy(bp->name, name);

return (bp);
}

bucket *
lookup(const char *name)
{
    bucket *bp, **bpp;

bpp = symbol_table + hash(name);
    bp = *bpp;

while (bp)
    {
	if (strcmp(name, bp->name) == 0)
	    return (bp);
	bpp = &bp->link;
	bp = *bpp;
    }

*bpp = bp = make_bucket(name);
    last_symbol->next = bp;
    last_symbol = bp;

return (bp);
}

void
create_symbol_table(void)
{
    int i;
    bucket *bp;

symbol_table = TMALLOC(bucket *, TABLE_SIZE);
    NO_SPACE(symbol_table);

for (i = 0; i < TABLE_SIZE; i++)
	symbol_table[i] = 0;

bp = make_bucket("error");
    bp->index = 1;
    bp->class = TERM;

first_symbol = bp;
    last_symbol = bp;
    symbol_table[hash("error")] = bp;
}

void
free_symbol_table(void)
{
    FREE(symbol_table);
    symbol_table = 0;
}

void
free_symbols(void)
{
    bucket *p, *q;

for (p = first_symbol; p; p = q)
    {
	q = p->next;
	FREE(p);
    }
}

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Editing: symtab.c

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