The user could use a regular expression query to match the numbers, but
otherwise, you will have to write some specialized token filter to recognize
numeric tokens and generate extra tokens at the same position for each token
variant that you want to search for.
-- Jack Krupansky
-----Original Message-----
From: Todd Hunt
Sent: Friday, June 28, 2013 2:18 PM
To: java-user@lucene.apache.org
Subject: How to Perform a Full Text Search on a Number with Leading Zeros or
Decimals?
I have an application that is indexing the text from various reports and
forms that are generated from our core system. The reports will contain
dollar amounts and various indexes that contain all numbers, but have
leading zeros.
If a document contains that following text that is stored in one Lucene
document field:
"Account 00000012345 owes $321.98"
What analyzer can be used to index this text and allow the user to find this
document by searching on:
12345
OR
321
???
We are currently using a StandardAnalyzer which works well for most of our
use cases, but not one like this.
I realize that I could create my own token filter to convert any text that
can be represented by an Integer or Long, with leading zeros or not, and
convert the value to a normal looking integer without leading zeros. But
I'd prefer to reuse and existing analyzer or technique to achieve the same
results.
Thank you.
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