Delimiter auto-completion problem

I found the problem, the matching formula of "StartTagAttributeStringValueStartDelimiter" is Pattern="= {LineTerminatorWhitespace}* \""

When HTML uses "DelimiterAutoCompleter", this causes the above error.

Hello,

Can you tell us the code you used to register the DelimiterAutoCompleter on the syntax language so that we can try the same thing here?

Rewriting the method in DelimiterAutoCompleter can solve the problem.

protected override bool IsValidStartDelimiter(ITextSnapshotReader reader, char startDelimiter)
        {
            if (reader != null && reader.IsAtTokenStart)
            {
                var token = reader.PeekTokenReverse();

                if (token != null) //This condition in the base class contains token.length==1
                {
                    return this.IsValidStartDelimiter(token, startDelimiter);
                }
            }

            return false;
        }