Relevanssi Premium 2.10.2 introduces new way to search: wildcard matching. Once the wildcard matching is enabled (it is disabled by default), it introduces two new operators: * and ?.
Using the wildcard operators
The * operator replaces zero or more characters, so searching for
w*ess would match “wilderness”, “witness”, “WordPress” and also “wess”.
The ? operator matches exactly one character, so searching for
gr?y would match “grey” or “gray”, but not “gravy” or “groovy”.
These operators only work within words. Searching for
gra? will not have the expected results.
The wildcard operators can only be used when the “Keyword matching” setting is not set to “Whole words”, because wildcard matches are not whole word matches.
Enabling wildcard matching
In order to enable the wildcard matching, add a filter function that returns
true to the
relevanssi_wildcard_search filter hook, like this:
add_filter( 'relevanssi_wildcard_search', '__return_true' );
This one-liner, which you can add for example to the theme
functions.php file, will enable the wildcard matching.