cmark: cmark (CommonMark parsing and rendering library and program in C) cmark: cmark: cmark is the C reference implementation of CommonMark, a rationalized cmark: version of Markdown syntax with a spec. cmark: It provides a shared library (libcmark) with functions for parsing cmark: CommonMark documents to an abstract syntax tree (AST). cmark: It also provides a command-line program (cmark) for parsing and cmark: rendering CommonMark documents. cmark: cmark: cmark home: https://commonmark.org/ cmark: