Java Utililty Methods String Unescape

return unescape(str, escapeChar, targetChars, escapedChars, false);

StringBuffer result = new StringBuffer();
if (string.length() > 0) {
    if (string.charAt(0) == '"' && string.charAt(string.length() - 1) == '"') {
        result.append(string.substring(1, string.length() - 1));
    } else {
        boolean escape = false;
        char currentchar;
        for (int i = 0; i < string.length(); i++) {
...

StringBuilder sb = new StringBuilder();
boolean wasEscape = false;
boolean unicode = false;
int count = 0;
for (char c : string.toCharArray()) {
    if (unicode) {
        sb.append(c);
        if (++count == 4) {
...

assert string != null;
StringBuilder buf = new StringBuilder();
int start = 0;
while (true) {
    int index = string.indexOf('\\', start);
    if (index < 0) {
        break;
    buf.append(string.substring(start, index));
    if (index != string.length() - 1) {
        buf.append(string.charAt(index + 1));
        start = index + 2;
    } else {
        buf.append(string.charAt(index));
        start = index + 1;
if (start < string.length()) {
    buf.append(string.substring(start));
return buf.toString();

StringBuffer stringbuffer = new StringBuffer();
int i = 0;
for (int i_2_ = string.length(); i < i_2_; i++) {
    char c = string.charAt(i);
    if ('A' <= c && c <= 'Z')
        stringbuffer.append((char) c);
    else if ('a' <= c && c <= 'z')
        stringbuffer.append((char) c);
...

return unescape(string, 0, string.length());

StringBuilder buffer = new StringBuilder(string.length());
int i = string.indexOf(escape), b = 0;
while (i >= 0) {
    buffer.append(string.substring(b, i));
    if (i + 1 < string.length()) {
        buffer.append(string.charAt(i + 1));
    b = i + 2;
...

for (int i = escapeMappings.length - 1; i >= 0; i--) {
    text = text.replace(escapeMappings[i][1], escapeMappings[i][0]);
return text;

String s = text;
if (s != null && s.matches(".*&(.*);.*")) {
    s = s.replaceAll(""", "\"");
    s = s.replaceAll("&", "&");
    s = s.replaceAll("'", "'");
    s = s.replaceAll("&lt;", "<");
    s = s.replaceAll("&gt;", ">");
return s;

if (!text.contains("\\")) {
    return text;
int len = text.length();
StringBuilder sb = new StringBuilder(len);
for (int i = 0; i < len; i++) {
    char c = text.charAt(i);
    if (c == '\\') {
...