Cast '(R)Markdown' Files to 'XML' and Back Again R package tinkr version 0.3.1 Parsing '(R)Markdown' files with numerous regular expressions can be fraught with peril, but it does not have to be this way. Converting '(R)Markdown' files to 'XML' using the 'commonmark' package allows in-memory editing via of 'markdown' elements via 'XPath' through the extensible 'R6' class called 'yarn'. These modified 'XML' representations can be written to '(R)Markdown' documents via an 'xslt' stylesheet which implements an extended version of 'GitHub'-flavoured 'markdown' so that you can tinker to your hearts content. Software Depends: R (>= 4.1.0) Imports: commonmark (>= 1.6), glue, lifecycle, magrittr, purrr, R6, rlang (>= 0.4.5), xml2, xslt Suggests: knitr, rmarkdown, covr, testthat (>= 3.0.0), withr Zhian N. Kamvar <zkamvar@gmail.com> Comprehensive R Archive Network (CRAN) Maëlle Salmon [aut] (ORCID: <https://orcid.org/0000-0002-2815-0399>), Zhian N. Kamvar [aut, cre] (ORCID: <https://orcid.org/0000-0003-1458-7108>), Jeroen Ooms [aut], Nick Wellnhofer [cph] (Nick Wellnhofer wrote the XSLT stylesheet.), rOpenSci [fnd] (ROR: <https://ror.org/019jywm96>), Peter Daengeli [ctb] GPL-3 2025-10-04 application/tgz https://CRAN.R-project.org/package=tinkr doi:10.32614/CRAN.package.tinkr en-US