Changelog

Updated md4c to version 0.5.3.
to_html() no longer doubles the language- prefix on a fenced code block whose info string already starts with language-, matching the upstream md4c-html behavior.
Added $ and $<- methods for md_node objects to read and modify node content and attributes by name.

Renamed md_text_br() and md_text_softbr() to md_text_break() and md_text_softbreak() so constructor classes match parser output.
Added md_text_*, md_span_*, and md_block_* functions to create markdown elements.
Switched spec-based tests to use code generation (thanks to @krlmlr).
Clearer errors in to_md() for empty md_block_p and for md_block_li missing required arguments.
C++ parser now emits an md_span_other fallback for unrecognized spans.
Added rlang to Suggests; test regeneration skipped cleanly when rlang/styler are missing.
Fixed wrong dependency vector in helper-tests.R md4c test regeneration.

Initial CRAN submission.
Based on md4c version 0.5.2
Implemented functionality for parsing markdown, displaying the AST, and generating html or md

Changes in md4r 0.5.3.02026-05-07