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https://issues.apache.org/jira/browse/SOLR-758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12757106#action_12757106
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Simon Lachinger commented on SOLR-758:
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First of all thanks for providing wildcard matching for the dismax query
handler, that is exactly what I need. However, the WILDCARD_STRIP_CHARS regex
in UserQParser.java does not work with umlauts which makes the patch useless
for languages like ie. German.
I will attach a diff file with the changes I have made to get it working with
umlauts.
> Enhance DisMaxQParserPlugin to support full-Solr syntax and to support
> alternate escaping strategies.
> -----------------------------------------------------------------------------------------------------
>
> Key: SOLR-758
> URL: https://issues.apache.org/jira/browse/SOLR-758
> Project: Solr
> Issue Type: Improvement
> Components: search
> Affects Versions: 1.3
> Reporter: David Smiley
> Fix For: 1.5
>
> Attachments: AdvancedQParserPlugin.java, AdvancedQParserPlugin.java,
> DisMaxQParserPlugin.java, DisMaxQParserPlugin.java, UserQParser.java,
> UserQParser.java
>
>
> The DisMaxQParserPlugin has a variety of nice features; chief among them is
> that is uses the DisjunctionMaxQueryParser. However it imposes limitations
> on the syntax.
> I've enhanced the DisMax QParser plugin to use a pluggable query string
> re-writer (via subclass extension) instead of hard-coding the logic currently
> embedded within it (i.e. the escape nearly everything logic). Additionally,
> I've made this QParser have a notion of a "simple" syntax (the default) or
> non-simple in which case some of the logic in this QParser doesn't occur
> because it's irrelevant (phrase boosting and min-should-max in particular).
> As part of my work I significantly moved the code around to make it clearer
> and more extensible. I also chose to rename it to suggest it's role as a
> parser for user queries.
> Attachment to follow...
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