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SOLR-794: added escape() method to ClientUtils.

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git-svn-id: https://svn.apache.org/repos/asf/lucene/solr/trunk@702314 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Koji Sekiguchi 2008-10-07 00:36:49 +00:00
parent 9b4a62d0a4
commit 41ea2b308d
2 changed files with 21 additions and 2 deletions
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2
client/java/solrj/CHANGES.txt
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@ -18,6 +18,8 @@ Detailed Change List
New Features
----------------------
1. SOLR-794: added escape() method to ClientUtils. (koji)
Optimizations
----------------------

21
client/java/solrj/src/org/apache/solr/client/solrj/util/ClientUtils.java
View File

@ -191,15 +191,32 @@ public class ClientUtils
private static final Pattern escapePattern = Pattern.compile( "(\\W)" );
/**
* See: http://lucene.apache.org/java/docs/queryparsersyntax.html#Escaping Special Characters
* Non-word characters are escaped by a preceding <code>\</code>.
*/
public static String escapeQueryChars( String input )
{
Matcher matcher = escapePattern.matcher( input );
return matcher.replaceAll( "\\\\$1" );
}
/**
* See: http://lucene.apache.org/java/docs/queryparsersyntax.html#Escaping Special Characters
*/
public static String escape(String s) {
StringBuffer sb = new StringBuffer();
for (int i = 0; i < s.length(); i++) {
char c = s.charAt(i);
// These characters are part of the query syntax and must be escaped
if (c == '\\' || c == '+' || c == '-' || c == '!' || c == '(' || c == ')' || c == ':'
|| c == '^' || c == '[' || c == ']' || c == '\"' || c == '{' || c == '}' || c == '~'
|| c == '*' || c == '?' || c == '|' || c == '&') {
sb.append('\\');
}
sb.append(c);
}
return sb.toString();
}
public static String toQueryString( SolrParams params, boolean xml ) {
StringBuilder sb = new StringBuilder(128);
try {