private void ParsePreamble(ref PreToken token, PreTokenEnumerator enumerator, ref FlatTokenParserState state, ref StringBuilder tokenContent)
{
var next = enumerator.Next();
switch (next)
{
case "{":
if (enumerator.Peek() == "{")
{
token.AppendPreamble("{");
enumerator.Next();
}
else
{
token.Location = enumerator.Location.Clone();
tokenContent.Append("{");
state = FlatTokenParserState.InTokenName;
}
break;
case "}":
if (enumerator.Peek() == "}")
{
token.AppendPreamble("}");
enumerator.Next();
break;
}
throw new ParsingException($"Unescaped character '}}' in template.", enumerator);
default:
token.AppendPreamble(next);
break;
}
}
private void AppendToken(PreTemplate template, PreToken token, ref StringBuilder tokenContent, TokenizerOptions options)
{
token.Content = tokenContent.ToString();
token.Id = template.Tokens.Count + 1;
token.IsNull = string.Compare(token.Name, "null", StringComparison.InvariantCultureIgnoreCase) == 0;
if (options.TrimPreambleBeforeNewLine)
{
token.TrimPreambleBeforeNewLine();
}
if (options.TerminateOnNewline)
{
token.TerminateOnNewline = true;
}
tokenContent.Clear();
var preamble = GetRepeatingMultilinePreamble(token);
if (string.IsNullOrEmpty(preamble) == false && token.Repeating)
{
token.Repeating = false;
template.Tokens.Add(token);
var repeat = new PreToken
{
Optional = true,
Repeating = true,
TerminateOnNewline = token.TerminateOnNewline,
Content = token.Content
};
repeat.AppendName(token.Name);
repeat.AppendPreamble(preamble);
repeat.AppendDecorators(token.Decorators);
repeat.Id = template.Tokens.Count + 1;
repeat.DependsOnId = token.Id;
template.Tokens.Add(repeat);
}
else
{
template.Tokens.Add(token);
}
}