Something that took me a while to get was that the analyzer is important BOTH in the indexing phase and in the searching phase (assuming you're using the QueryParser). For you experiment, you probably want to use the WhitespaceAnalyzer. See page 119 of "Lucene in Action".
The other three most-common analyzers divide text at nonletter characters, which will do bad things to your path names..... Also note that you can use the PerFieldAnalyzerWrapper to use, say, the WhitespaceAnalyzer on the file-path field and other analyzers on other fields, you're not locked into using the same analyzer for all fields. Best Erick BTW, I really recommend a copy of "Lucene in Action"......
