[LUCENENET-592] Lucene.Net.QueryParsers.Flexible.Core.Util.UnescapedCharSequence

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Lucene.Net 4.8.0
• Fix Version/s: Lucene.Net 4.8.0
• Component/s: Lucene.Net.QueryParser

Environment

.NET 4.5.1/4.6.2

• Assignee: Shad Storhaug
• Reporter: Greg Mulvihill
• Created: 08/Aug/17 15:05
• Updated: 21/Oct/17 04:48
• Resolved: 21/Oct/17 04:48

Description

I noticed a few things that seem to be bugs in UnescapedCharSequence.cs.

https://github.com/apache/lucenenet/blob/master/src/Lucene.Net.QueryParser/Flexible/Core/Util/UnescapedCharSequence.cs

Line 77: I found no reference to the private constructor UnescapedCharSequence(UnescapedCharSequence text), but needed to use it.

Line 81: The for loop throws an exception as the condition statement goes beyond the length of text due to '<=', rather than '<'.

Line 128: The for loop immediately terminates as i will always fail the condition statement.

Issue Links

• relates to: LUCENE-8001 UnescapedCharSequence Bugs