(zettel (meta (back "00001006000000 00001007031200 00001008000000 00001008010000 00001012920513") (backward "00001006000000 00001007000000 00001007031200 00001008000000 00001008010000 00001012920513") (box-number "1") (created "20220113183435") (forward "00001004010000 00001007000000 00001012920500 00001012920510") (modified "20221018123145") (published "20221018123145") (role "manual") (syntax "zmk") (tags "#manual #markdown #zettelstore") (title "CommonMark") (url "https://commonmark.org/")) (rights 4) (encoding "") (content "[[CommonMark|https://commonmark.org/]] is a Markdown dialect, an [[attempt|https://xkcd.com/927/]] to unify all the different, divergent dialects of Markdown by providing an unambiguous syntax specification for Markdown, together with a suite of comprehensive tests to validate implementation.\n\nTime will show, if this attempt is successful.\n\nHowever, CommonMark is a well specified Markdown dialect, in contrast to most (if not all) other dialects.\nOther software adopts CommonMark somehow, notably [[GitHub Flavored Markdown|https://github.github.com/gfm/]] (GFM).\nBut they provide proprietary extensions, which makes it harder to change to another CommonMark implementation if needed.\nPlus, they sometimes build on an older specification of CommonMark.\n\nZettelstore supports the latest CommonMark [[specification version 0.30 (2021-06-19)|https://spec.commonmark.org/0.30/]].\nIf possible, Zettelstore will adapt to newer versions when they are available.\n\nTo provide CommonMark support, Zettelstore uses currently the [[Goldmark|https://github.com/yuin/goldmark]] implementation, which passes all validation tests of CommonMark.\nInternally, CommonMark is translated into some kind of super-set of [[Zettelmarkup|00001007000000]], which additionally allows to use HTML code.[^Effectively, Markdown and CommonMark are itself super-sets of HTML.]\nThis Zettelmarkup super-set is later [[encoded|00001012920500]], often into [[HTML|00001012920510]].\nBecause Zettelstore HTML encoding philosophy differs a little bit to that of CommonMark, Zettelstore itself will not pass the CommonMark test suite fully.\nHowever, no CommonMark language element will fail to be encoded as HTML.\nIn most cases, the differences are not visible for an user, but only by comparing the generated HTML code.\n\nBe aware, depending on the value of the startup configuration key [[''insecure-html''|00001004010000#insecure-html]], HTML code found within a CommonMark document or within the mentioned kind of super-set of Zettelmarkup will typically be ignored for security-related reasons."))