private static bool ParseLiteral(TemplateParserContext context, TemplateSegment segment)
{
context.Mark();
string encoded;
while (true)
{
if (context.Current == Separator)
{
encoded = context.Capture();
context.Back();
break;
}
else if (context.Current == OpenBrace)
{
if (!context.Next())
{
// This is a dangling open-brace, which is not allowed
context.Error = Resources.TemplateRoute_MismatchedParameter;
return(false);
}
if (context.Current == OpenBrace)
{
// This is an 'escaped' brace in a literal, like "{{foo" - keep going.
}
else
{
// We've just seen the start of a parameter, so back up and return
context.Back();
encoded = context.Capture();
context.Back();
break;
}
}
else if (context.Current == CloseBrace)
{
if (!context.Next())
{
// This is a dangling close-brace, which is not allowed
context.Error = Resources.TemplateRoute_MismatchedParameter;
return(false);
}
if (context.Current == CloseBrace)
{
// This is an 'escaped' brace in a literal, like "{{foo" - keep going.
}
else
{
// This is an unbalanced close-brace, which is not allowed
context.Error = Resources.TemplateRoute_MismatchedParameter;
return(false);
}
}
if (!context.Next())
{
encoded = context.Capture();
break;
}
}
var decoded = encoded.Replace("}}", "}").Replace("{{", "{");
if (IsValidLiteral(context, decoded))
{
segment.Parts.Add(TemplatePart.CreateLiteral(decoded));
return(true);
}
else
{
return(false);
}
}
