Java Utililty Methods String Unescape

List of utility methods to do String Unescape

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Description

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

Method

StringunEscapeString(String str)
un Escape String 
if (str == null)
    return null;
str = str.replaceAll("%20", " ");
str = str.replaceAll("%3C", "<");
str = str.replaceAll("%3E", ">");
str = str.replaceAll("%23", "#");
str = str.replaceAll("%7B", "{");
str = str.replaceAll("%7D", "}");
...
StringunescapeString(String string)
Retira o escape de barras invertidas e de aspas duplas de uma string, nesta ordem. 
return unescapeDoubleQuote(unescapeReverseSolidus(string));
StringunescapeString(String string, String escapeChars, char escapeSymbol)
Removes occurrences of an escape character from a string. 
if (string == null || string.isEmpty() || (escapeChars != null && escapeChars.isEmpty())) {
    return string;
StringBuilder sb = new StringBuilder(string.length());
for (int i = 0; i < string.length(); i++) {
    char c = string.charAt(i);
    if (c == escapeSymbol && i < string.length() - 1) {
        char c2 = string.charAt(i + 1);
...
StringunescapeString(String t)
unescape String 
StringBuilder r = new StringBuilder();
int length = t.length();
int j = 0;
while (j < length) {
    char c = t.charAt(j);
    if (c == '\\') {
        c = t.charAt(++j);
        switch (c) {
...
StringunescapeString(String text)

Effectively un-escapes a string, performs the reverse of #escapeString(String) . 

if (!needsUnEscaping(text)) {
    return text;
String unescaped = text.replaceAll("\\\\n", "\n");
unescaped = unescaped.replaceAll("\\\\r", "\r");
unescaped = unescaped.replaceAll("\\\\N", "\n");
unescaped = unescaped.replaceAll("\\\\\\\\", "\\\\");
unescaped = unescaped.replaceAll("\\\\,", ",");
...
StringunescapeString(String text)

Effectively un-escapes a string, performs the reverse of #escapeString(String) .

String unescaped = text.replaceAll("\\\\n", "\n");
unescaped = unescaped.replaceAll("\\\\N", "\n");
unescaped = unescaped.replaceAll("\\\\\\\\", "\\\\");
unescaped = unescaped.replaceAll("\\\\,", ",");
unescaped = unescaped.replaceAll("\\\\;", ";");
unescaped = unescaped.replaceAll("\\\\:", ":");
return unescaped;
StringunescapeString(String text)
unescape String 
if (text == null) {
    return null;
if (text.length() >= 2 && text.startsWith("\"") && text.endsWith("\"")) {
    text = text.substring(1, text.length() - 1);
if (text.indexOf('\\') >= 0) {
    StringBuilder r = new StringBuilder();
...
StringunescapeString(String txt)
unescape String 
txt = txt.replace("&xd;", "\r");
txt = txt.replace("&xa;", "\n");
return txt;
StringunescapeText(String s)
unescape Text 
StringBuffer text = new StringBuffer(s);
boolean more = true;
while (more) {
    int i = text.toString().indexOf("\\\""); 
    if (i != -1) {
        text.replace(i, i + 2, "\"");
    } else {
        more = false;
...
StringunescapeText(String s)
Replaces &-excape sequences required by HTML and XML with the character represented by the escape sequence (& < > " and '). 
StringBuffer sb = new StringBuffer();
int oldIndex = 0;
int index = s.indexOf('&');
while (index >= 0) {
    sb.append(s.substring(oldIndex, index));
    if (s.startsWith("&amp;", index)) {
        sb.append('&');
        oldIndex = index + 5;
...