private static String escapeJavaStyleString(String str, boolean escapeSingleQuotes) {
if (str == null) {
return null;
}
try {
StringPrintWriter writer = new StringPrintWriter(str.length() * 2);
escapeJavaStyleString(writer, str, escapeSingleQuotes);
return writer.getString();
} catch (IOException ioe) {
// this should never ever happen while writing to a StringWriter
ioe.printStackTrace();
return null;
}
}
/**
* Worker method for the {@link #escapeJavaScript(String)} method.
*
* @param str String to escape values in, may be null
* @param escapeSingleQuotes escapes single quotes if <code>true</code>
* @param escapeForwardSlash TODO
* @return the escaped string
*/
private static String escapeJavaStyleString(
String str, boolean escapeSingleQuotes, boolean escapeForwardSlash) {
if (str == null) {
return null;
}
try {
StringWriter writer = new StringWriter(str.length() * 2);
escapeJavaStyleString(writer, str, escapeSingleQuotes, escapeForwardSlash);
return writer.toString();
} catch (IOException ioe) {
// this should never ever happen while writing to a StringWriter
throw new UnhandledException(ioe);
}
}
/**
* Escapes the characters in a <code>String</code> using Java String rules to a <code>Writer
* </code>.
*
* <p>A <code>null</code> string input has no effect.
*
* @see #escapeJava(java.lang.String)
* @param out Writer to write escaped string into
* @param str String to escape values in, may be null
* @throws IllegalArgumentException if the Writer is <code>null</code>
* @throws IOException if error occurs on underlying Writer
*/
public static void escapeJava(Writer out, String str) throws IOException {
escapeJavaStyleString(out, str, false);
}
/**
* Escapes the characters in a <code>String</code> using JavaScript String rules to a <code>Writer
* </code>.
*
* <p>A <code>null</code> string input has no effect.
*
* @see #escapeJavaScript(java.lang.String)
* @param out Writer to write escaped string into
* @param str String to escape values in, may be null
* @throws IllegalArgumentException if the Writer is <code>null</code>
* @throws IOException if error occurs on underlying Writer
*/
public static void escapeJavaScript(Writer out, String str) throws IOException {
escapeJavaStyleString(out, str, true);
}