Java Utililty Methods String Dequote

if (string == null) {
    return null;
} else {
    string = string.trim();
    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < string.length(); i++) {
        char c = string.charAt(i);
        if (c != '\"' && c != '\'' && c != '`') {
...

return text.substring(0, text.length());

if (isDoubleQuoted(value)) {
    value = value.substring(1, value.length() - 1);
    value = value.replaceAll("\"\"", "\"");
if (value.equals(" ")) {
    return "";
return value;
...

if (value.length() < 2)
    return value;
char f = first(value);
char l = last(value);
if ((f == '"' && l == '"') || (f == '\'' && l == '\'')) {
    return value.substring(1, value.length() - 1);
return value;
...

 "hello""world" becomes hello"world 

if (str == null) {
    return null;
return dequoteFull(str, 0, str.length(), quote);

if (id.startsWith(SINGLE_QUOTE_STRING) && id.endsWith(SINGLE_QUOTE_STRING)) {
    return id.substring(1, id.length() - 1);
} else {
    return id;

String dequoteStr = s.trim();
if (dequoteStr.startsWith("'") && dequoteStr.endsWith("'")) {
    dequoteStr = dequoteStr.substring(1);
    dequoteStr = dequoteStr.substring(0, dequoteStr.length() - 1);
    return dequoteStr;
return s;

if (str.indexOf('\\') == -1)
    return str;
char[] buf = str.toCharArray();
int pos = 0, num_deq = 0;
while (pos < buf.length) {
    if (buf[pos] == '\\' && pos + 1 < buf.length) {
        System.arraycopy(buf, pos + 1, buf, pos, buf.length - pos - 1);
        num_deq++;
...

if (str != null && str.length() > 1 && ((str.charAt(0) == '"' || str.charAt(0) == '\'')
        && str.charAt(str.length() - 1) == str.charAt(0))) {
    return str.substring(1, str.length() - 1);
return str;

String newStr = strReplace(strVal, "
", "\r"); 
return strReplace(newStr, "
", "\n");