ElasticSearch::Util - Util subs for ElasticSearch
ElasticSearch::Util provides various subs useful to other modules in ElasticSearch.
The only sub useful to users is "filter_keywords()", which can be exported.
use ElasticSearch::Util qw(filter_keywords); my $filtered = filter_keywords($unfiltered)
This tidies up a string to be used as a query string in (eg) "search()" in ElasticSearch so that user input won't cause a search query to return an error.
It is not flexible at all, and may or may not be useful to you.
Have a look at ElasticSearch::QueryParser which gives you much more control over your query strings.
The current implementation does the following:
Removes any character which isn't a letter, a number, a space or
-that doesn't have a space in front of it ( "foo -bar") is acceptable as it means
'foo' but not with 'bar'
Removes any space after a
-which is not followed by a letter, number or a double quote
*that doesn't have at least 3 letters before it, ie we only allow wildcard searches on words with at least 3 characters
Closes any open double quotes
Removes leading and trailing whitespace
Copyright 2010 - 2011 Clinton Gormley.
This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.
See http://dev.perl.org/licenses/ for more information.