Java Utililty Methods Unicode Unescape

List of utility methods to do Unicode Unescape

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Description

The list of methods to do Unicode Unescape are organized into topic(s).

Method

StringunescapeHTMLUnicodeEntity(final String text)
unescape HTML Unicode Entity 
final StringBuilder resultBuilder = new StringBuilder(text.length());
final StringBuilder entity = new StringBuilder();
boolean readingEntity = false;
char myChar;
for (int i = 0; i < text.length(); ++i) {
    myChar = text.charAt(i);
    if (readingEntity) {
        if (myChar == ';') {
...
StringunescapeUnicode(String encoded)
unescape Unicode 
int length = encoded.length();
final StringBuilder sb = new StringBuilder(length);
for (int i = 0; i < length; i++) {
    final char currChar = encoded.charAt(i);
    if ('&' == currChar) {
        final StringBuilder codeBuilder = new StringBuilder(6);
        if ('u' != encoded.charAt(++i)) {
            throw new IllegalArgumentException("& not followed by u at position " + i + " in " + encoded);
...
StringunescapeUnicode(String s)
Unescape %XX and %uXXXX notation produced by the JavaScript's escape function 
if (s == null || s.indexOf('%') == -1)
    return s;
StringBuilder unicode = new StringBuilder(1024);
StringBuilder sb = new StringBuilder(4);
boolean hadPct = false;
boolean inUnicode = false;
boolean inByte = false;
for (int i = 0; i < s.length(); i++) {
...
StringunescapeUnicode(String s)
Unescapes unicode sequences and stores them as unicode characters instead. 
StringBuilder result;
int index;
String unicode;
char[] chars;
if (!s.contains("\\u"))
    return s;
result = new StringBuilder();
while ((index = s.indexOf("\\u")) > -1) {
...
StringunescapeUnicodeChars(String string)
Unescapes \\uXXXX encoded chars. 
int pos = string.indexOf("\\u");
if (pos < 0) {
    return string;
StringBuilder newString = new StringBuilder();
int charValue, oldPos = 0;
while ((pos >= 0) && (pos + 5 < string.length())) {
    newString.append(string.substring(oldPos, pos));
...