int
mdb_test_string(MdbSargNode *node, char *s)
{
int rc;
if (node->op == MDB_LIKE) {
return mdb_like_cmp(s,node->value.s);
}
rc = strncmp(node->value.s, s, 255);
switch (node->op) {
case MDB_EQUAL:
if (rc==0) return 1;
break;
case MDB_GT:
if (rc<0) return 1;
break;
case MDB_LT:
if (rc>0) return 1;
break;
case MDB_GTEQ:
if (rc<=0) return 1;
break;
case MDB_LTEQ:
if (rc>=0) return 1;
break;
default:
fprintf(stderr, "Calling mdb_test_sarg on unknown operator. Add code to mdb_test_string() for operator %d\n",node->op);
break;
}
return 0;
}
/**
* mdb_like_cmp
* @s: String to search within.
* @r: Search pattern.
*
* Tests the string @s to see if it matches the search pattern @r. In the
* search pattern, a percent sign indicates matching on any number of
* characters, and an underscore indicates matching any single character.
*
* Returns: 1 if the string matches, 0 if the string does not match.
*/
int mdb_like_cmp(char *s, char *r)
{
unsigned int i;
int ret;
mdb_debug(MDB_DEBUG_LIKE, "comparing %s and %s", s, r);
switch (r[0]) {
case '\0':
if (s[0]=='\0') {
return 1;
} else {
return 0;
}
case '_':
/* skip one character */
return mdb_like_cmp(&s[1],&r[1]);
case '%':
/* skip any number of characters */
/* the strlen(s)+1 is important so the next call can */
/* if there are trailing characters */
for(i=0;i<strlen(s)+1;i++) {
if (mdb_like_cmp(&s[i],&r[1])) {
return 1;
}
}
return 0;
default:
for(i=0;i<strlen(r);i++) {
if (r[i]=='_' || r[i]=='%') break;
}
if (strncmp(s,r,i)) {
return 0;
} else {
mdb_debug(MDB_DEBUG_LIKE, "at pos %d comparing %s and %s", i, &s[i], &r[i]);
ret = mdb_like_cmp(&s[i],&r[i]);
mdb_debug(MDB_DEBUG_LIKE, "returning %d (%s and %s)", ret, &s[i], &r[i]);
return ret;
}
}
}
