Sino Free Text Search Engine
Sino (short for ``size is no object'') is a high performance
free text search engine. It was originally written in 1995 and has been
mainly used to provide production level search facilities for most of the
Legal Information Institutes that form part of the
Free Access to Law Movement (for
<http://www.paclii.org> et al).
Sino is very fast both in retrieval and indexing times and
provided that you have a box with reasonable memory it will out-perfrom just
about anything else with full-featured Boolean / proximity searching
Sino is easy to interface with via a simple C/Perl API as well as a ready
written interactive interface for testing or for actual use on sockets
Sino is relatively small and easy to understand (about 12K lines of C code including libraries).
It is ANSI/POSIX.1 compliant and can be compiled 32 or 64-bit.
Sino concordances (indexes) are portable across platforms
with different machine architectures and operating systems and typically
only involve about a half a dozen files that are easy to move around.
Sino has been in use on a number of major web sites answering many
millions of requests for the past 10 years and so is robust and reliable.
Sino is free. It is licensed under the
GNU GPL licence.