vim-patch:9042bd8b09ba

runtime(r): Update R runtime files and docs (vim/vim#13757)

* Update R runtime files
- Fix indentation issue with ggplot().
- Setlocal autoindent in indent/r.vim.
- New syntax option: rmd_include_latex.
- Clear syn iskeyword to recognize _ as keyword.
- Document some options.
- remove the test has("patch-7.4.1142")
- Update changed date of doc files

https://github.com/vim/vim/commit/9042bd8b09bae0051fdf8eb5a57fa4b4420c92a0

Co-authored-by: Jakson Alves de Aquino <jalvesaq@gmail.com>

3 files changed, 24 insertions, 6 deletions

diff --git a/runtime/doc/filetype.txt b/runtime/doc/filetype.txt
index 115fc18cc5..96cd0f8ab0 100644
--- a/runtime/doc/filetype.txt
+++ b/runtime/doc/filetype.txt
@@ -735,6 +735,14 @@ To enable this behavior, set the following variable in your vimrc: >
 	let g:rst_style = 1
 
 
+RNOWEB							      *ft-rnoweb-plugin*
+
+The 'formatexpr' option is set dynamically with different values for R code
+and for LaTeX code. If you prefer that 'formatexpr' is not set, add to your
+|vimrc|: >
+	let rnw_dynamic_comments = 0
+
+
 RPM SPEC						*ft-spec-plugin*
 
 Since the text for this plugin is rather long it has been put in a separate
diff --git a/runtime/doc/indent.txt b/runtime/doc/indent.txt
index 1cd5c7b5f5..99467e4b03 100644
--- a/runtime/doc/indent.txt
+++ b/runtime/doc/indent.txt
@@ -1031,8 +1031,8 @@ r_indent_comment_column, as in the example below:
    let r_indent_comment_column = 30
 <
 Any code after a line that ends with "<-" is indented. Emacs/ESS does not
-indent the code if it is a top level function. If you prefer that the
-Vim-R-plugin behaves like Emacs/ESS in this regard, put in your |vimrc|:
+indent the code if it is a top-level function. If you prefer a behavior like
+Emacs/ESS one in this regard, put in your |vimrc|:
 >
    let r_indent_ess_compatible = 1
 <
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index cf345d9c96..546e2c15cf 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -2801,10 +2801,20 @@ To highlight R code in knitr chunk headers: >
 	let rmd_syn_hl_chunk = 1
 
 By default, chunks of R code will be highlighted following the rules of R
-language. If you want proper syntax highlighting of chunks of other languages,
-you should add them to either `markdown_fenced_languages` or
-`rmd_fenced_languages`. For example to properly highlight both R and Python,
-you may add this to your |vimrc|: >
+language. Moreover, whenever the buffer is saved, Vim scans the buffer and
+highlights other languages if they are present in new chunks. LaTeX code also
+is automatically recognized and highlighted when the buffer is saved. This
+behavior can be controlled with the variables `rmd_dynamic_fenced_languages`,
+and `rmd_include_latex` whose valid values are: >
+	let rmd_dynamic_fenced_languages = 0 " No autodetection of languages
+	let rmd_dynamic_fenced_languages = 1 " Autodetection of languages
+	let rmd_include_latex = 0 " Don't highlight LaTeX code
+	let rmd_include_latex = 1 " Autodetect LaTeX code
+	let rmd_include_latex = 2 " Always include LaTeX highlighting
+
+If the value of `rmd_dynamic_fenced_languages` is 0, you still can set the
+list of languages whose chunks of code should be properly highlighted, as in
+the example: >
 	let rmd_fenced_languages = ['r', 'python']