private static ValueExpression ParseValue(ExpressionReader reader)
{
var c = reader.PeekChar();
switch (c)
{
case '$':
return(VariableParser.ParseVariable(reader));
case '\'':
return(ParseConstant(reader));
default:
throw reader.UnexpectedCharacterException();
}
}
public static VariableString Parse(string text)
{
if (text == null)
{
throw new ArgumentNullException(nameof(text));
}
var result = new List <object>();
var basicString = new StringBuilder();
using (var reader = new ExpressionReader(text))
{
while (reader.Peek() != -1)
{
switch (reader.PeekChar())
{
case '$':
FlushString();
result.Add(VariableParser.ParseVariable(reader));
break;
default:
var c = reader.ReadChar();
basicString.Append(c);
break;
}
}
}
FlushString();
return(new VariableString(result));
void FlushString()
{
if (basicString.Length <= 0)
{
return;
}
result.Add(basicString.ToString());
basicString.Clear();
}
}