/*******************************************************************************
* Copyright (c) 2005, 2007 Remy Suen
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Remy Suen <remy.suen@gmail.com> - initial API and implementation
******************************************************************************/
package org.eclipse.ecf.protocol.msn.internal.encode;
import java.util.ArrayList;
/**
* <p>
* The StringUtils class provides static methods that helps make string
* manipulation easy. The primary functionality it is meant to provide is the
* ability to split a string into a string array based on a given delimiter.
* This functionality is meant to take the place of the split(String) and
* split(String, int) method that was introduced in J2SE-1.4. Please note,
* however, that the splitting performed by this class simply splits the string
* based on the delimiter and does not perform any regular expression matching
* like the split methods provided in J2SE-1.4.
* </p>
*
* <p>
* <b>Note:</b> This class/interface is part of an interim API that is still
* under development and expected to change significantly before reaching
* stability. It is being made available at this early stage to solicit feedback
* from pioneering adopters on the understanding that any code that uses this
* API will almost certainly be broken (repeatedly) as the API evolves.
* </p>
*/
public final class StringUtils {
public static final String[] splitOnSpace(String string) {
int index = string.indexOf(' ');
if (index == -1) {
return new String[] { string };
}
ArrayList split = new ArrayList();
while (index != -1) {
split.add(string.substring(0, index));
string = string.substring(index + 1);
index = string.indexOf(' ');
}
if (!string.equals("")) { //$NON-NLS-1$
split.add(string);
}
return (String[]) split.toArray(new String[split.size()]);
}
public static final String[] split(String string, char character) {
int index = string.indexOf(character);
if (index == -1) {
return new String[] { string };
}
ArrayList split = new ArrayList();
while (index != -1) {
split.add(string.substring(0, index));
string = string.substring(index + 1);
index = string.indexOf(character);
}
if (!string.equals("")) { //$NON-NLS-1$
split.add(string);
}
return (String[]) split.toArray(new String[split.size()]);
}
public static final String[] split(String string, String delimiter) {
int index = string.indexOf(delimiter);
if (index == -1) {
return new String[] { string };
}
int length = delimiter.length();
ArrayList split = new ArrayList();
while (index != -1) {
split.add(string.substring(0, index));
string = string.substring(index + length);
index = string.indexOf(delimiter);
}
if (!string.equals("")) { //$NON-NLS-1$
split.add(string);
}
return (String[]) split.toArray(new String[split.size()]);
}
public static final String[] split(String string, String delimiter,
int limit) {
int index = string.indexOf(delimiter);
if (index == -1) {
return new String[] { string };
}
int count = 0;
int length = delimiter.length();
ArrayList split = new ArrayList(limit);
while (index != -1 && count < limit - 1) {
split.add(string.substring(0, index));
string = string.substring(index + length);
index = string.indexOf(delimiter);
count++;
}
if (!string.equals("")) { //$NON-NLS-1$
split.add(string);
}
return (String[]) split.toArray(new String[split.size()]);
}
public static final String splitSubstring(String string, String delimiter,
int pos) {
int index = string.indexOf(delimiter);
if (index == -1) {
return string;
}
int count = 0;
int length = delimiter.length();
while (count < pos) {
string = string.substring(index + length);
index = string.indexOf(delimiter);
count++;
}
return index == -1 ? string : string.substring(0, index);
}
public static final String xmlDecode(String string) {
if (string.equals("")) { //$NON-NLS-1$
return string;
}
int index = string.indexOf("&"); //$NON-NLS-1$
while (index != -1) {
string = string.substring(0, index) + '&'
+ string.substring(index + 5);
index = string.indexOf("&", index + 1); //$NON-NLS-1$
}
index = string.indexOf("""); //$NON-NLS-1$
while (index != -1) {
string = string.substring(0, index) + '"'
+ string.substring(index + 6);
index = string.indexOf(""", index + 1); //$NON-NLS-1$
}
index = string.indexOf("'"); //$NON-NLS-1$
while (index != -1) {
string = string.substring(0, index) + '\''
+ string.substring(index + 6);
index = string.indexOf("'", index + 1); //$NON-NLS-1$
}
index = string.indexOf("<"); //$NON-NLS-1$
while (index != -1) {
string = string.substring(0, index) + '<'
+ string.substring(index + 4);
index = string.indexOf("<", index + 1); //$NON-NLS-1$
}
index = string.indexOf(">"); //$NON-NLS-1$
while (index != -1) {
string = string.substring(0, index) + '>'
+ string.substring(index + 4);
index = string.indexOf(">", index + 1); //$NON-NLS-1$
}
return string;
}
public static final String xmlEncode(String string) {
if (string.equals("")) { //$NON-NLS-1$
return string;
}
int index = string.indexOf('&');
while (index != -1) {
string = string.substring(0, index) + "&" //$NON-NLS-1$
+ string.substring(index + 1);
index = string.indexOf('&', index + 1);
}
index = string.indexOf('"');
while (index != -1) {
string = string.substring(0, index) + """ //$NON-NLS-1$
+ string.substring(index + 1);
index = string.indexOf('"', index + 1);
}
index = string.indexOf('\'');
while (index != -1) {
string = string.substring(0, index) + "'" //$NON-NLS-1$
+ string.substring(index + 1);
index = string.indexOf('\'', index + 1);
}
index = string.indexOf('<');
while (index != -1) {
string = string.substring(0, index) + "<" //$NON-NLS-1$
+ string.substring(index + 1);
index = string.indexOf('<', index + 1);
}
index = string.indexOf('>');
while (index != -1) {
string = string.substring(0, index) + ">" //$NON-NLS-1$
+ string.substring(index + 1);
index = string.indexOf('>', index + 1);
}
return string;
}
}