/**
*
* Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library. If not, see <http://www.gnu.org/licenses/>.
*
**/
package lucee.commons.lang;
public class CharSequenceImpl implements CharSequence {
private final char[] chars;
private final String str;
private final String lcStr;
/**
* Constructor of the class
* @param chars
*/
public CharSequenceImpl(char[] chars) {
this.str=new String(chars);
this.chars=chars;
char c;
for(int i=0;i<chars.length;i++) {
c=chars[i];
if(!((c>='a' && c<='z') || (c>='0' && c<='9'))) {
lcStr=str.toLowerCase();
return ;
}
}
lcStr=str;
}
/**
* Constructor of the class
* @param str
*/
public CharSequenceImpl(String str) {
this(str.toCharArray());
}
@Override
public char charAt(int index) {
return chars[index];
}
@Override
public int length() {
return chars.length;
}
@Override
public CharSequence subSequence(int start, int end) {
char[] dest = new char[end-start];
System.arraycopy(chars, start, dest, 0, end-start);
return new CharSequenceImpl(dest);
}
@Override
public String toString() {
return str;
}
public String toLowerCaseString() {
return lcStr;
}
}