Dear all,

I've been looking into using commonmark_x to process some large files. The parser performance seems to be much better (because less backtracking is required?), plus I like the 'attributes' extension.

However, I've found two strange things. The two relevant extensions should be enabled for commonmark_x and I'm wondering whether they are in fact restricted versions (presumably to avoid potential ambiguities).

Fenced divs appear not to support trailing colons (as in "::: note :::")

https://pandoc.org/try/?params=%7B%22text%22%3A%22%23+with+commonmark_x%2C+this+doesn%27t+work%5Cn%5Cn%3A%3A%3A+note+%3A%3A%3A%5Cn%5CnThis+is+a+note.%5Cn%5Cn%3A%3A%3A%5Cn%5Cn%23+but+this+does%5Cn%5Cn%3A%3A%3A+note%5Cn%5CnThis+is+a+note.%5Cn%5Cn%3A%3A%3A%22%2C%22to%22%3A%22html5%22%2C%22from%22%3A%22commonmark_x%22%2C%22standalone%22%3Afalse%2C%22embed-resources%22%3Afalse%2C%22table-of-contents%22%3Afalse%2C%22number-sections%22%3Afalse%2C%22citeproc%22%3Afalse%2C%22html-math-method%22%3A%22plain%22%2C%22wrap%22%3A%22auto%22%2C%22highlight-style%22%3Anull%2C%22files%22%3A%7B%7D%2C%22template%22%3Anull%7D
The fancy list '#.' form appears not to work

https://pandoc.org/try/?params=%7B%22text%22%3A%22%23.+This%5Cn%23.+doesn%27t%5Cn%23.+work.%5Cn%5Cn1.+But%5Cn2.+this%5Cn3.+does.%22%2C%22to%22%3A%22html5%22%2C%22from%22%3A%22commonmark_x%22%2C%22standalone%22%3Afalse%2C%22embed-resources%22%3Afalse%2C%22table-of-contents%22%3Afalse%2C%22number-sections%22%3Afalse%2C%22citeproc%22%3Afalse%2C%22html-math-method%22%3A%22plain%22%2C%22wrap%22%3A%22auto%22%2C%22highlight-style%22%3Anull%2C%22files%22%3A%7B%7D%2C%22template%22%3Anull%7D

Thanks,

William