package org.eclipse.dltk.debug.core.model;
public class StringScriptType extends AtomicScriptType {
public StringScriptType(String name) {
super(name);
}
@Override
public boolean isString() {
return true;
}
@Override
public String formatValue(IScriptValue value) {
String string = value.getRawValue();
if (string == null) {
return null;
}
return escapeString(string);
}
private static String escapeString(String string) {
final boolean alreadyQuoted = isQuoted(string);
final boolean escapeNeed = isEscapeNeeded(string, alreadyQuoted);
if (!escapeNeed) {
if (alreadyQuoted) {
return string;
} else {
return '"' + string + '"';
}
}
final StringBuffer escaped = new StringBuffer(string.length() + 8);
if (!alreadyQuoted) {
escaped.append('"');
}
for (int i = 0; i < string.length(); i++) {
char c = string.charAt(i);
switch (c) {
case '"':
escaped.append("\\\""); //$NON-NLS-1$
break;
default:
escaped.append(c);
break;
}
}
if (!alreadyQuoted) {
escaped.append('"');
}
return escaped.toString();
}
private static boolean isQuoted(String string) {
if (string.length() >= 2) {
final char firstChar = string.charAt(0);
final char lastChar = string.charAt(string.length() - 1);
if (firstChar == '\'' && lastChar == '\''
|| firstChar == '"' && lastChar == '"') {
return true;
}
}
return false;
}
private static boolean isEscapeNeeded(String string, boolean isQuoted) {
int i = 0, len = string.length();
if (isQuoted) {
++i;
--len;
}
for (; i < len; ++i) {
if (string.charAt(i) == '"') {
return true;
}
}
return false;
}
}