[LUCENE-306] [PATCH]multiple wildcards ? at the end of search pattern return incorrect hits

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4
• Component/s: core/search

Environment

Operating System: other
Platform: Other

• Bugzilla Id: 32167
• Assignee: Unassigned
• Reporter: Xiaozheng Ma
• Created: 11/Nov/04 03:00
• Updated: 28/Aug/22 11:19
• Resolved: 01/Nov/05 02:10

Description

The problem is if you search on "ca??", the hit includes 'cat', 'CA',
etc, while the user only wants 4 letter words start with CA, such as
'card', 'cash', to be returned. This happens only when multiple '?' at
the end of search pattern. The solution is to check if the word that is
matching against search pattern ends while there is still '?' left. If
this is the case, match should return false.

Attached is the patch code I generated use 'diff'
********************************************************************

— WildcardTermEnum.org 2004-05-11 11:42:10.000000000 -0400
+++ WildcardTermEnum.java 2004-11-08 14:35:14.823610500 -0500
@@ -132,6 +132,10 @@
}
else
{
+ //to prevent "cat" matches "ca??"
+ if(wildchar == WILDCARD_CHAR)

{ + return false; + }

// Look at the next character
wildcardSearchPos++;
}
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