Log message:
(textproc/R-markdown) Updated 1.7 to 1.13
# CHANGES IN markdown VERSION 1.13
- Cleaned `sourcepos` records when they come from metadata (thanks,
  @dmurdoch, #111).
- The **markdown** package is in the maintenance-only mode now. It is
  feature-complete, and will receive no updates except for fixing CRAN
  problems. New development will continue only in **litedown**:
  <https://github.com/yihui/litedown>.
# CHANGES IN markdown VERSION 1.12
- Provided three internal functions `html_document`, `html_vignette`,
  and `pdf_document` as compatibility layers to functions of the same
  names in the **rmarkdown** package (thanks, @jangorecki, #108).
- The default HTML template no longer wraps meta variables
  `include-before` and `include-after` inside `<div></div>`, because
  their values may contain incomplete HTML tags, e.g., `include-before
  = '<div>'` and `include-after = '</div>'`.
# CHANGES IN markdown VERSION 1.11
- Verbatim code blocks of the form ```` ```{lang attr1 attr2 ...} ````
  were not correctly rendered.
# CHANGES IN markdown VERSION 1.10
- Raw blocks (```` ```{=lang} ````) were broken in the previous
  version when the support for code block attributes was added.
# CHANGES IN markdown VERSION 1.9
- Added support for attributes on fenced code blocks, e.g., ````
  ```{.lang .class2 #id attr="value"}```` (thanks, @thothal, #106).
- Fixed the bug that the option `number_sections: true` doesn't work
  for HTML output when then input contains certain Unicode characters
  (thanks, @fyuniv, #104).
- Added support for rendering HTML Widgets such as **ggplotly**
  (thanks, @fyuniv, #105).
# CHANGES IN markdown VERSION 1.8
- Fixed the superfluous warning about path lengths in `mark_html()`
  (thanks, @kenjisato, #103).

Log message:
(textproc/R-markdown) Updated 1.5 to 1.7
# CHANGES IN markdown VERSION 1.7
- The `file` argument of `mark()` will be treated as a file path only
  if the file exists and the value is not wrapped in
  `I()`. Previously, it would be treated as a file path when it has a
  file extension, which could lead to confusing errors like #100
  (thanks, @LukasWallrich).
- When there are emojis in the text, `mark()` may fail to identify and
  embed web resources (thanks, @tdhock, yihui/knitr#2254).
# CHANGES IN markdown VERSION 1.6
- Added support for footnotes, fenced `Div`s, section numbers, `{}`
  attributes for images/headings/fenced `Div`s, and appendices. See
  `vignette('intro', package = 'markdown')` for details.
- A lot of enhancements to the HTML slides format. See
  `vignette('slides', package = 'markdown')` for details.
- Added `vignette('article', package = 'markdown')` to demonstrate how
  to write an HTML article.
- If the input to `mark()` is a file, the output will also be a file
  by default. Previously the output would be text. If you want
  `mark()` to return text output when the input is a file, you may
  specify the argument `output = NULL`.
- The Markdown option `base64_images` has been renamed to
  `embed_resources`. This option can take two possible values,
  `"local"` and `"https"`, meaning whether to embed local \ 
and/or web
  (https) resources. You can specify none, either, or both of
  them. See `vignette('intro', package = 'markdown')` for details.
- Removed the option `standalone` from the list of Markdown
  options. Please use the argument `template = TRUE/FALSE` of `mark()`
  instead. The option `standalone = TRUE` was equivalent to `template
  = TRUE`.
- Added the option `auto_identifiers` (enabled by default) to
  automatically add IDs to headings, e.g., `# Hello world!` will be
  converted to `<h1 id="hello-world">Hello world!</h1>`. \ 
You can
  certainly override the automatic ID by providing an ID manually via
  the `{#id}` attribute, e.g., `# Hello world! {#hello}`.
- Renamed the `mathjax` option to `js_math` to allow for other JS math
  libraries. The default library was changed from MathJax to KaTeX. To
  continue using MathJax, you may set `js_math: mathjax`.
- Removed the option `mathjax_embed` from the list of Markdown
  options. To embed the MathJax library, enable `"https"` in the
  `embed_resources` option instead. Note that only MathJax v3 can be
  partially embedded, and lower versions cannot.
- Renamed the option `highlight_code` to `js_highlight`, and added
  support for an alternative syntax highlighting JS library Prism.js,
  which became the default. To continue using the old default
  `highlight.js`, you may set the `js_highlight` option to
  `highlight`.
- The default version of MathJax has been changed from v2 to v3.
- The default version of highlight.js has been changed from 11.6.0 to
  11.7.0, and the default style has been switched from `github` to
  `xcode`.

Log message:
(textproc/R-markdown) Updated 1.1 to 1.5
# CHANGES IN markdown VERSION 1.5
- Values of meta variables `title`, `author`, and `date` (if provided)
  will be transformed to the target output format before they are
  passed into templates.
- Fixed the bug that the default CSS was not added to HTML output.
- Removed dependency on the **mime** package.
- Added experimental support for HTML slides:
  `markdown::mark_html(..., meta = list(css = c('default', 'slides'),
  js = 'slides'))`. If you prefer knitting `Rmd` documents in RStudio,
  you may use the output format:
  ```yaml
  output:
    markdown::html_format:
      meta:
        css: [default, slides]
        js: [slides]
  ```
  See https://yihui.org/en/2023/01/minimal-r-markdown/ for a demo.
# CHANGES IN markdown VERSION 1.4
- Empty `\title{}` in LaTeX output will be removed (along with `\maketitle`).
- highlight.js is loaded from
  https://www.jsdelivr.com/package/gh/highlightjs/cdn-release by
  default now. This means more languages are supported (not only R),
  but also means syntax-highlighting will not work offline at the
  moment (it will be improved in future).
- MathJax failed to load in the previous version. The bug has been
  fixed now.
- Removed the function `markdownExtensions()`.
# CHANGES IN markdown VERSION 1.3
- Switched the underlying Markdown rendering engine from the C library
  **sundown** (which has been deprecated for a decade) to the R
  package **commonmark** (thanks, @jeroen, yihui/knitr#1329).
- The functions `renderMarkdown()` and `markdownToHTML()` have been
  renamed to `mark()` and `mark_html()`, respectively. The old names
  are still kept in this package for backward-compatibility.
- Removed the arguments `stylesheet` and `fragment.only` in
  `mark_html()`. For `stylesheet`, please use the argument `meta =
  list(css = ...)` to provide the CSS stylesheet. For `fragment.only`,
  please use `mark_html(template = FALSE)` or `mark_html(options =
  '-standalone')` instead of `fragment.only = TRUE`. Currently these
  old arguments are still accepted internally, but may be deprecated
  and dropped in the long run.
- The `file` argument of `mark()` and `mark_html()` can also take a
  character vector of Markdown text now.
- Removed functions `rendererExists()`, `rendererOutputType()`, and
  `registeredRenderer()`. They were primarily for internal use.
- Deprecated the function `markdownExtensions()`. All extensions
  should be specified via the `options` argument of functions like
  `mark()`, e.g., `mark(options = '+table+tasklist')`. See all options
  on the help page `?markdown::markdown_options`.
- Renamed `markdownHTMLOptions()` to `markdown_options()`.
# CHANGES IN markdown VERSION 1.2
- Fixed the warnings "a function declaration without a prototype is
  deprecated in all versions of C" (#94).

Log message:
textproc: Replace RMD160 checksums with BLAKE2s checksums
All checksums have been double-checked against existing RMD160 and
SHA512 hashes
Unfetchable distfiles (fetched conditionally?):
./textproc/convertlit/distinfo clit18src.zip

Log message:
textproc: Remove SHA1 hashes for distfiles

Log message:
(textproc/R-markdown) Add missing one DEPENDS (R-xfun)

Log message:
(textproc/R-markdown) Updated 1.0 to 1.1
     CHANGES IN markdown VERSION 1.1
MAJOR CHANGES
  o renderMarkdown() and markdownToHTML() will signal an error if the input file
  is not encoded in "UTF-8".

Log message:
Update all R packages to canonical form.
The canonical form [1] of an R package Makefile includes the
following:
- The first stanza includes R_PKGNAME, R_PKGVER, PKGREVISION (as
  needed), and CATEGORIES.
- HOMEPAGE is not present but defined in math/R/Makefile.extension to
  refer to the CRAN web page describing the package.  Other relevant
  web pages are often linked from there via the URL field.
This updates all current R packages to this form, which will make
regular updates _much_ easier, especially using pkgtools/R2pkg.
[1] https://mail-index.netbsd.org/tech-pkg/2019/08/02/msg021711.html