A Catalogue of Free/Open Source Software for Translators
From the project's web-site:
Xaira is the current name for a new version of SARA, the text searching software originally developed at OUCS for use with the British National Corpus. This new version has been entirely re-written as a general purpose XML search engine, which will operate on any corpus of well-formed XML documents. It is however best used with TEI-conformant documents.
Xaira has full Unicode support. This means you can use it to search and display text in any language, provided you have a suitable Unicode font installed on your system.