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From Chris Hostetter <>
Subject Re: pattern error in PatternReplaceCharFilterFactory
Date Fri, 30 Mar 2012 21:46:36 GMT

: This works. Other patterns tried were: \p{InLatin-1_Supplement} or \p{Latin}
: These throw an exception, from the log:
: ***
: Mar 29, 2012 5:56:45 PM org.apache.solr.common.SolrException log
: SEVERE: null:org.apache.solr.common.SolrException: Plugin init failure for
: [schema.xml] fieldType:Plugin init failure for [schema.xml]
: analyzer/charFilter:Configuration Error: 'pattern' can not be parsed in
: org.apache.solr.analysis.PatternReplaceCharFilterFactory

Immediately below that should have been more details on what error 
generated by the Java regex engine when trying to parse your pattern. 
(something like "caused by: ...")  which is fairly crucial to understand 
what might be going wrong.

: Can anybody help? Or, might this be a java issue?

I suspect it's a java issue ... you didn't mention which version of java 
you are using, and i don't know which java versions corripsond to which 
unicode versions in terms of the block names they support, but is it 
possible some of those patterns are only legal in a newer version of java 
then you have?

have you tried running a simple little java main() to verify that those 
patterns are legal in your JVM?

public static final class PatTest {
  public static final void main(String[] args) throws Exception {
    String pat = args[0];
    String input = args[1];
    Pattern p = Pattern.compile(pat);
    System.out.println(input + " does " + 
                       (p.matcher(input).matches() ? "" : "NOT") +
                       " match " + pat);


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