Java String Split splitSimpleQueries(String queryString)

Description

Split out terms of form "M(QUERY)", or return null if there are no such parentheses-delimited terms.

License

Open Source License

Declaration

protected static final String[] splitSimpleQueries(String queryString) 

Method Source Code

//package com.java2s;
/*/* ww w.j a  v a  2 s.  c o  m*/
Copyright 2009 Semantic Discovery, Inc. (www.semanticdiscovery.com)
    
This file is part of the Semantic Discovery Toolkit.
    
The Semantic Discovery Toolkit is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
The Semantic Discovery Toolkit is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.
    
You should have received a copy of the GNU Lesser General Public License
along with The Semantic Discovery Toolkit.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.util.ArrayList;

import java.util.List;

public class Main {
    /**
     * Split out terms of form "M(QUERY)", or return null if there are no
     * such parentheses-delimited terms.
     */
    protected static final String[] splitSimpleQueries(String queryString) {
        List<String> pieces = null;

        for (int lpPos = queryString.indexOf('('); lpPos >= 0; lpPos = queryString.indexOf('(')) {

            // move back over marker if present
            if (lpPos > 0) {
                final char c = queryString.charAt(lpPos - 1);
                if (c == '+' || c == '^')
                    --lpPos;
            }

            int rpPos = queryString.indexOf(')') + 1; // rightParen
            if (rpPos == 0)
                rpPos = queryString.length();

            final String simpleQuery = queryString.substring(lpPos, rpPos);
            if (pieces == null)
                pieces = new ArrayList<String>();
            pieces.add(simpleQuery);

            queryString = queryString.substring(rpPos);
        }

        return pieces == null ? null : pieces.toArray(new String[pieces.size()]);
    }
}

Related

1. splitSelection(String selection)
2. splitSelectionAsInteger(String selection)
3. splitSemicolonString(String semicolonString)
4. splitSentence(String sentence)
5. splitSimple(String split, String s)
6. splitSQL(List list, String sql)
7. splitSQLColumns(String sql)
8. splitStep(String step)
9. splitStr(String str, int toCount)