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Date: Wed, 1 May 2013 18:54:16 +0000 (UTC)
From: "Shawn Heisey (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
Message-ID: <JIRA.12645679.1367433752705.256063.1367434456254@arcas>
In-Reply-To: <JIRA.12645679.1367433752705@arcas>
References: <JIRA.12645679.1367433752705@arcas>
Subject: [jira] [Closed] (SOLR-4780) It would be helpful to have a function
 in SolrQuery to perform special character escaping as needed for q strings
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     [ https://issues.apache.org/jira/browse/SOLR-4780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Shawn Heisey closed SOLR-4780.
------------------------------

    Resolution: Invalid

SolrJ already includes this functionality:

http://lucene.apache.org/solr/4_2_0/solr-solrj/org/apache/solr/client/solrj/util/ClientUtils.html#escapeQueryChars%28java.lang.String%29

You would need to be careful that you only escape the "query" part of something that uses the field:query syntax, rather than the entire query string.  If you escape the whole thing, the colon will become part of the query text.
                
> It would be helpful to have a function in SolrQuery to perform special character escaping as needed for q strings
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-4780
>                 URL: https://issues.apache.org/jira/browse/SOLR-4780
>             Project: Solr
>          Issue Type: New Feature
>    Affects Versions: 4.0
>            Reporter: Benson Margulies
>
> Here's some code I found in a blog, IP uncertain, to explain the idea:
> {noformat}
> public static String escapeQueryCulprits(String s)
> {
> StringBuilder sb = new StringBuilder();
> 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 == '&' || c == ';'
> )
> {
> sb.append('\\');
> }
> if(Character.isWhitespace(c))
> {
> sb.append(" \\ ");
> }
> sb.append(c);
> }
> return sb.toString();
> }
> {noformat}

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