IPBXProjExpression ParseExpression()
{
// int, string, bool, quoted string, dictionary or array
IPBXProjExpression expression = null;
if (_currentToken.Type == PBXProjTokenType.Symbol)
{
if (_currentToken.Value == "{")
{
expression = ParseDictionary();
}
else if (_currentToken.Value == "(")
{
expression = ParseArray();
}
}
else
{
expression = ParseBaseExpression();
}
if (_currentToken != null && _currentToken.Type == PBXProjTokenType.Comment)
{
expression.Comment = _currentToken.Value;
ReadNextToken();
}
return(expression);
}
void SetSettingsEntry(string key, IPBXProjExpression value)
{
var settings = Dict.DictionaryValue(SETTINGS_KEY);
if (settings == null)
{
settings = new PBXProjDictionary();
Dict.Add(SETTINGS_KEY, settings);
}
settings[key] = value;
}
PBXProjArray ParseArray()
{
// (expression,expression)
// _current = (
PBXProjArray array = new PBXProjArray();
ReadNextToken(); // skip '('
while (!(_currentToken.Type == PBXProjTokenType.Symbol && _currentToken.Value == ")"))
{
IPBXProjExpression expression = ParseExpression();
SkipExpected(PBXProjTokenType.Symbol, ",");
array.Add(expression);
}
ReadNextToken();
return(array);
}
PBXProjDictionary ParseDictionary()
{
// {assignment assignment assignment};
// { variable = expression; variable = expression; variable = expression;};
// _current = {
PBXProjDictionary dic = new PBXProjDictionary();
ReadNextToken();
while (!(_currentToken.Type == PBXProjTokenType.Symbol && _currentToken.Value == "}")) //doing !symbol && !} means that other symbols break the loop.
{
// assignment:
// variable = expression;
// comment variable comment = expresssion comment; comment
string preComment = "", keyComment = "", postComment = "";
if (_currentToken != null && _currentToken.Type == PBXProjTokenType.Comment)
{
preComment = _currentToken.Value;
ReadNextToken();
}
if (_currentToken.Type != PBXProjTokenType.String)
{
throw new PBXProjParserException("Expected a variable name, but got " + _currentToken.Value);
}
string key = _currentToken.Value;
// Debug.Log(key);
ReadNextToken();
if (_currentToken != null && _currentToken.Type == PBXProjTokenType.Comment)
{
keyComment = _currentToken.Value;
ReadNextToken();
}
CheckForUnexpectedEndOfSource();
SkipExpected(PBXProjTokenType.Symbol, "=");
IPBXProjExpression exp = ParseExpression();
if (exp == null)
{
throw new PBXProjParserException("Expected an expression to be assigned to " + key);
}
SkipExpected(PBXProjTokenType.Symbol, ";");
if (_currentToken != null && _currentToken.Type == PBXProjTokenType.Comment)
{
postComment = _currentToken.Value;
ReadNextToken();
}
CheckForUnexpectedEndOfSource();
dic.Add(key, exp);
dic.SetPreCommentForKey(key, preComment);
dic.SetCommentForKey(key, keyComment);
dic.SetPostCommentForKey(key, postComment);
}
ReadNextToken();
return(dic);
}
