path: root/src/LYHash.c

/* A hash table for the (fake) CSS support in Lynx-rp
** (c) 1996 Rob Partington
*/
#include <LYHash.h>

#ifdef USE_COLOR_STYLE

/*
 *  This is the same function as the private HASH_FUNCTION() in HTAnchor.c,
 *  but with a different value for HASH_SIZE.
 */

#define HASH_SIZE CSHASHSIZE
#define HASH_OF(h, v) ((int)((h) * 3 + UCH(v)) % HASH_SIZE)

PUBLIC int hash_code ARGS1 (CONST char*, string)
{
    int hash;
    CONST char *p;

    for (p = string, hash = 0; *p; p++)
	hash = HASH_OF(hash,*p);

    return hash;
}

PUBLIC int hash_code_lowercase_on_fly ARGS1 (CONST char*, string)
{
    int hash;
    CONST char *p;

    for (p = string, hash = 0; *p; p++)
	hash = HASH_OF(hash, TOLOWER(*p));

    return hash;
}

PUBLIC int hash_code_aggregate_char ARGS2 (char, c,int,hash)
{
    return HASH_OF(hash,c);
}

PUBLIC int hash_code_aggregate_lower_str ARGS2 (CONST char*, string,int,hash_was)
{
    int hash;
    CONST char *p;

    for (p = string, hash = hash_was ; *p; p++)
	hash = HASH_OF(hash, TOLOWER(*p));

    return hash;
}

#endif /* USE_COLOR_STYLE */