* Sebastian Hammer, Adam Dickmeiss
*
* $Log: lookgrep.c,v $
- * Revision 1.14 1996-02-02 13:43:51 adam
+ * Revision 1.15 1996-03-20 09:35:18 adam
+ * Function dict_lookup_grep got extra parameter, init_pos, which marks
+ * from which position in pattern approximate pattern matching should occur.
+ *
+ * Revision 1.14 1996/02/02 13:43:51 adam
* The public functions simply use char instead of Dict_char to represent
* search strings. Dict_char is used internally only.
*
}
static INLINE int move (MatchContext *mc, MatchWord *Rj1, MatchWord *Rj,
- Dict_char ch, struct DFA *dfa, MatchWord *Rtmp)
+ Dict_char ch, struct DFA *dfa, MatchWord *Rtmp,
+ int range)
{
int d;
MatchWord *Rtmp_2 = Rtmp + mc->n;
MatchWord *Rj, int pos, void *client,
int (*userfunc)(char *, const char *, void *),
Dict_char *prefix, struct DFA *dfa,
- int *max_pos)
+ int *max_pos, int init_pos)
{
int lo, hi, d;
void *p;
MatchWord *Rj0 = Rj + j *mc->fact;
MatchWord *Rj1 = Rj + (j+1)*mc->fact;
MatchWord *Rj_tmp = Rj + (j+2)*mc->fact;
+ int range;
memcpy (&ch, info+j*sizeof(Dict_char), sizeof(Dict_char));
prefix[pos+j] = ch;
return 1;
break;
}
- move (mc, Rj1, Rj0, ch, dfa, Rj_tmp);
+ if (pos+j >= init_pos)
+ range = mc->range;
+ else
+ range = 0;
+ move (mc, Rj1, Rj0, ch, dfa, Rj_tmp, range);
for (d = mc->n; --d >= 0; )
- if (Rj1[mc->range*mc->n + d])
+ if (Rj1[range*mc->n + d])
break;
if (d < 0)
break;
was_match = 0;
for (d = mc->n; --d >= 0; )
- if (Rj1[mc->range*mc->n + d] & mc->match_mask[d])
+ if (Rj1[range*mc->n + d] & mc->match_mask[d])
{
was_match = 1;
break;
MatchWord *Rj1 = Rj+ mc->fact;
MatchWord *Rj_tmp = Rj+2*mc->fact;
Dict_char ch;
+ int range;
/* Dict_ptr subptr */
/* Dict_char sub char */
if (pos > *max_pos)
*max_pos = pos;
- move (mc, Rj1, Rj, ch, dfa, Rj_tmp);
+ if (pos >= init_pos)
+ range = mc->range;
+ else
+ range = 0;
+ move (mc, Rj1, Rj, ch, dfa, Rj_tmp, range);
for (d = mc->n; --d >= 0; )
- if (Rj1[mc->range*mc->n + d])
+ if (Rj1[range*mc->n + d])
break;
if (d >= 0)
{
if (info[sizeof(Dict_ptr)+sizeof(Dict_char)])
{
for (d = mc->n; --d >= 0; )
- if (Rj1[mc->range*mc->n + d] & mc->match_mask[d])
+ if (Rj1[range*mc->n + d] & mc->match_mask[d])
{
prefix[pos+1] = DICT_EOS;
if ((*userfunc)((char*) prefix,
if (subptr)
{
if (dict_grep (dict, subptr, mc, Rj1, pos+1,
- client, userfunc, prefix, dfa, max_pos))
+ client, userfunc, prefix, dfa, max_pos,
+ init_pos))
return 1;
dict_bf_readp (dict->dbf, ptr, &p);
indxp = (short*) ((char*) p+DICT_pagesize(dict)
}
int dict_lookup_grep (Dict dict, const char *pattern, int range, void *client,
- int *max_pos,
+ int *max_pos, int init_pos,
int (*userfunc)(char *name, const char *info,
void *client))
{
*max_pos = 0;
if (dict->head.last > 1)
i = dict_grep (dict, 1, mc, Rj, 0, client, userfunc, prefix,
- dfa, max_pos);
+ dfa, max_pos, init_pos);
else
i = 0;
logf (LOG_DEBUG, "max_pos = %d", *max_pos);