/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2007 Ola Bini <ola.bini@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
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* decision by deleting the provisions above and replace them with the notice
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* the provisions above, a recipient may use your version of this file under
* the terms of any one of the CPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
import org.jruby.Ruby;
import org.jruby.RubyModule;
import org.jruby.RubyString;
import org.jruby.runtime.CallbackFactory;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.util.ByteList;
public class JDBCMySQLSpec {
public static void load(Ruby runtime, RubyModule jdbcSpec) {
RubyModule mysql = jdbcSpec.defineModuleUnder("MySQL");
CallbackFactory cf = runtime.callbackFactory(JDBCMySQLSpec.class);
mysql.defineFastMethod("quote_string",cf.getFastSingletonMethod("quote_string",IRubyObject.class));
}
private final static ByteList ZERO = new ByteList(new byte[]{'\\','0'});
private final static ByteList NEWLINE = new ByteList(new byte[]{'\\','n'});
private final static ByteList CARRIAGE = new ByteList(new byte[]{'\\','r'});
private final static ByteList ZED = new ByteList(new byte[]{'\\','Z'});
private final static ByteList DBL = new ByteList(new byte[]{'\\','"'});
private final static ByteList SINGLE = new ByteList(new byte[]{'\\','\''});
private final static ByteList ESCAPE = new ByteList(new byte[]{'\\','\\'});
public static IRubyObject quote_string(IRubyObject recv, IRubyObject string) {
boolean replacementFound = false;
ByteList bl = ((RubyString) string).getByteList();
for(int i = bl.begin; i < bl.begin + bl.realSize; i++) {
ByteList rep = null;
switch (bl.bytes[i]) {
case 0: rep = ZERO; break;
case '\n': rep = NEWLINE; break;
case '\r': rep = CARRIAGE; break;
case 26: rep = ZED; break;
case '"': rep = DBL; break;
case '\'': rep = SINGLE; break;
case '\\': rep = ESCAPE; break;
default: continue;
}
// On first replacement allocate a different bytelist so we don't manip original
if(!replacementFound) {
i-= bl.begin;
bl = new ByteList(bl);
replacementFound = true;
}
bl.replace(i, 1, rep);
i+=1;
}
return recv.getRuntime().newStringShared(bl);
}
}