public static TranslationPath[] parse(String aPathExpression)
throws InvalidLanguageTagException, InvalidLanguagePathException {
int len = aPathExpression.length();
if (aPathExpression.charAt(0) != '(') {
throw new InvalidLanguagePathException(
"Translation path must start with '(': " + aPathExpression);
}
if (aPathExpression.charAt(1) != '(') {
throw createInvalidPathException(aPathExpression);
}
if (aPathExpression.charAt(len - 1) != ')') {
throw new InvalidLanguagePathException("Translation path must end with ')'.");
}
if (aPathExpression.charAt(len - 2) != ')') {
throw createInvalidPathException(aPathExpression);
}
String expression = aPathExpression.substring(2, len - 2);
ArrayList<TranslationPath> list = new ArrayList<TranslationPath>();
for (String path : expression.split("\\) ?\\(")) {
ArrayList<Language> languages = new ArrayList<Language>();
for (String language : path.split(" ")) {
languages.add(Language.parse(language));
}
list.add(new TranslationPath(languages.toArray(new Language[0])));
}
return list.toArray(new TranslationPath[0]);
}
