remove readr dependence for styler

README.md

@@ -262,12 +262,12 @@ that caused Neoformat to be invoked.
 - GraphQL
   - [`prettier`](https://github.com/prettier/prettier)
 - Haskell
-  - [`stylish-haskell`](https://github.com/jaspervdj/stylish-haskell)
-  - [`hindent`](https://github.com/chrisdone/hindent)
-  - [`hfmt`](https://github.com/danstiner/hfmt)
-  - [`brittany`](https://github.com/lspitzner/brittany)
-  - [`sort-imports`](https://github.com/evanrelf/sort-imports)
-  - [`floskell`](https://github.com/ennocramer/floskell)
+  - [`stylish-haskell`](https://github.com/jaspervdj/stylish-haskell),
+    [`hindent`](https://github.com/chrisdone/hindent),
+    [`hfmt`](https://github.com/danstiner/hfmt),
+    [`brittany`](https://github.com/lspitzner/brittany),
+    [`sort-imports`](https://github.com/evanrelf/sort-imports),
+    [`floskell`](https://github.com/ennocramer/floskell)
 - HTML
   - `html-beautify` (ships with [`js-beautify`](https://github.com/beautify-web/js-beautify)),
     [`prettier`](https://github.com/prettier/prettier),
@@ -312,37 +312,38 @@ that caused Neoformat to be invoked.
     [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),
     [`astyle`](http://astyle.sourceforge.net)
 - OCaml
-  - [`ocp-indent`](http://www.typerex.org/ocp-indent.html)
-  - [`ocamlformat`](https://github.com/ocaml-ppx/ocamlformat)
+  - [`ocp-indent`](http://www.typerex.org/ocp-indent.html),
+    [`ocamlformat`](https://github.com/ocaml-ppx/ocamlformat)
 - Pandoc Markdown
   - [`pandoc`](https://pandoc.org/MANUAL.html)
 - Pawn
   - [`uncrustify`](http://uncrustify.sourceforge.net)
 - Perl
   - [`perltidy`](http://perltidy.sourceforge.net)
 - PHP
-  - [`php_beautifier`](http://pear.php.net/package/PHP_Beautifier)
-  - [`php-cs-fixer`](http://cs.sensiolabs.org/)
-  - [`phpcbf`](https://github.com/squizlabs/PHP_CodeSniffer)
+  - [`php_beautifier`](http://pear.php.net/package/PHP_Beautifier),
+    [`php-cs-fixer`](http://cs.sensiolabs.org/),
+    [`phpcbf`](https://github.com/squizlabs/PHP_CodeSniffer)
 - Proto
   - [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html)
 - Pug (formally Jade)
   - [`pug-beautifier`](https://github.com/vingorius/pug-beautifier)
 - Python
   - [`yapf`](https://github.com/google/yapf),
     [`autopep8`](https://github.com/hhatto/autopep8),
-    [`black`](https://github.com/ambv/black)
-    [`pydevf`](https://github.com/fabioz/PyDev.Formatter)
-  - [`isort`](https://github.com/timothycrosley/isort)
-  - [`docformatter`](https://github.com/myint/docformatter)
-  - [`pyment`](https://github.com/dadadel/pyment)
+    [`black`](https://github.com/ambv/black),
+    [`pydevf`](https://github.com/fabioz/PyDev.Formatter),
+    [`isort`](https://github.com/timothycrosley/isort),
+    [`docformatter`](https://github.com/myint/docformatter),
+    [`pyment`](https://github.com/dadadel/pyment)
 - R
-  - [styler](https://github.com/r-lib/styler)
+  - [`styler`](https://github.com/r-lib/styler),
+    [`formatR`](https://github.com/yihui/formatR)
 - Reason
   - [`refmt`](https://github.com/facebook/reason)
 - Ruby
   - [`rufo`](https://github.com/ruby-formatter/rufo),
-  - [`ruby-beautify`](https://github.com/erniebrodeur/ruby-beautify),
+    [`ruby-beautify`](https://github.com/erniebrodeur/ruby-beautify),
     [`rubocop`](https://github.com/bbatsov/rubocop)
 - Rust
   - [`rustfmt`](https://github.com/rust-lang-nursery/rustfmt)
@@ -363,9 +364,9 @@ that caused Neoformat to be invoked.
 - Shell
   - [`shfmt`](https://github.com/mvdan/sh)
 - SQL
-  - [`sqlfmt`](https://github.com/jackc/sqlfmt)
-  - `sqlformat` (ships with [sqlparse](https://github.com/andialbrecht/sqlparse))
-  - `pg_format` (ships with [pgFormatter](https://github.com/darold/pgFormatter))
+  - [`sqlfmt`](https://github.com/jackc/sqlfmt),
+    `sqlformat` (ships with [sqlparse](https://github.com/andialbrecht/sqlparse)),
+    `pg_format` (ships with [pgFormatter](https://github.com/darold/pgFormatter))
 - Swift
   - [`Swiftformat`](https://github.com/nicklockwood/SwiftFormat)
 - Terraform

autoload/neoformat/formatters/r.vim

@@ -1,11 +1,19 @@
 function! neoformat#formatters#r#enabled() abort
-    return ['styler']
+    return ['styler', 'formatR']
 endfunction
 
 function! neoformat#formatters#r#styler() abort
     return {
         \ 'exe': 'R',
-        \ 'args': ['-e "library(styler)"', '-e "style_file(\"%:p\")"'],
+        \ 'args': ['--slave', '--no-restore', '--no-save', '-e "con <- file(\"stdin\");styler::style_text(readLines(con));close(con)"', '2>/dev/null'],
         \ 'replace': 1,
         \}
 endfunction
+
+function! neoformat#formatters#r#formatR() abort
+    return {
+        \ 'exe': 'R',
+        \ 'args': ['--slave', '--no-restore', '--no-save', '-e "formatR::tidy_source(\"stdin\", arrow=FALSE)"', '2>/dev/null'],
+        \ 'stdin': 1,
+        \}
+endfunction

doc/neoformat.txt

@@ -331,7 +331,8 @@ SUPPORTED FILETYPES				*neoformat-supported-filetypes*
     [`docformatter`](https://github.com/myint/docformatter),
     [`pyment`](https://github.com/dadadel/pyment)
 - R
-  - [styler](https://github.com/r-lib/styler)
+  - [`styler`](https://github.com/r-lib/styler),
+    [`formatR`](https://github.com/yihui/formatR)
 - Reason
   - [`refmt`](https://github.com/facebook/reason)
 - Ruby