[PATCH] wildcard "?" bug: "cat" matches "ca??"

[Xiaozheng Ma]

Dear all,   I am not a lucene dev subscriber and hope you can see this email. It is an intention to patch a bug that is related to multiple(continuous) trailing wildcards “?”. For example “cat” will match “ca??” .   The problem is at the file org.apache.lucene.search.WildcardTermEnum.java (referring to current src download from apache), line 135. three line is added:                   //to prevent "cat" matches "ca??"                   if(wildchar == WILDCARD_CHAR){                         return false;                   }             To provide some context: …             if (wildchar != WILDCARD_CHAR && wildchar != WILDCARD_STRING)             {               justWildcardsLeft = false;             }             else             {                   //to prevent "cat" matches "ca??"                   if(wildchar == WILDCARD_CHAR){                         return false;                   }                         // Look at the next character               wildcardSearchPos++;             }           } …   A patch file is attached.   Thanks!   --- Xiaozheng Ma

--- 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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