Yes, since I wrote html5-parser for use in calibre (i.e. to parse the HTML in e-books), sigil-gumbo is a more appropriate upstream for me. I have no objectsion

Yes, since I wrote html5-parser for use in calibre (i.e. to parse the HTML in e-books), sigil-gumbo is a more appropriate upstream for me. I have no objectsion to merging in changes from gumbo-parser that are not in sigil-gumbo over time, but it will need to be done gradually, as there is only so much time I can devote to html5-parser now that it meets the needs of calibre.