Add R support

.gitmodules

@@ -43,3 +43,6 @@
 [submodule "tree-sitter-ocaml/vendor/tree-sitter-ocaml"]
 	path = tree-sitter-ocaml/vendor/tree-sitter-ocaml
 	url = https://github.com/tree-sitter/tree-sitter-ocaml
+[submodule "tree-sitter-r/vendor/tree-sitter-r"]
+	path = tree-sitter-r/vendor/tree-sitter-r
+	url = https://github.com/r-lib/tree-sitter-r

tree-sitter-r/ChangeLog.md

@@ -0,0 +1,3 @@
+# v0.1.0.0
+
+* add tree-sitter-r parser

tree-sitter-r/Setup.hs

@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain

tree-sitter-r/TreeSitter/R.hs

@@ -0,0 +1,17 @@
+module TreeSitter.R
+( tree_sitter_r
+, getNodeTypesPath
+, getTestCorpusDir
+) where
+
+import Foreign.Ptr
+import TreeSitter.Language
+import Paths_tree_sitter_r
+
+foreign import ccall unsafe "vendor/tree-sitter-r/src/parser.c tree_sitter_r" tree_sitter_r :: Ptr Language
+
+getNodeTypesPath :: IO FilePath
+getNodeTypesPath = getDataFileName "vendor/tree-sitter-r/src/node-types.json"
+
+getTestCorpusDir :: IO FilePath
+getTestCorpusDir = getDataFileName "vendor/tree-sitter-r/corpus"

tree-sitter-r/tree-sitter-r.cabal

@@ -0,0 +1,47 @@
+cabal-version:       2.4
+name:                tree-sitter-r
+version:             0.1.0.0
+synopsis:            Tree-sitter grammar/parser for R
+description:         This package provides a parser for R suitable for use with the tree-sitter package.
+license:             BSD-3-Clause
+homepage:            https://github.com/tree-sitter/haskell-tree-sitter/tree/master/tree-sitter-r
+maintainer:          [email protected]
+copyright:           2020 GitHub, RStudio
+category:            Tree-sitter, R
+build-type:          Simple
+data-files:          vendor/tree-sitter-r/src/node-types.json
+extra-source-files:  ChangeLog.md
+
+common common
+  default-language: Haskell2010
+  ghc-options:
+    -Weverything
+    -Wno-all-missed-specialisations
+    -Wno-implicit-prelude
+    -Wno-missed-specialisations
+    -Wno-missing-import-lists
+    -Wno-missing-local-signatures
+    -Wno-monomorphism-restriction
+    -Wno-name-shadowing
+    -Wno-safe
+    -Wno-unsafe
+  if (impl(ghc >= 8.6))
+    ghc-options: -Wno-star-is-type
+  if (impl(ghc >= 8.8))
+    ghc-options: -Wno-missing-deriving-strategies
+
+library
+  import: common
+  exposed-modules:     TreeSitter.R
+  autogen-modules:     Paths_tree_sitter_r
+  other-modules:       Paths_tree_sitter_r
+  build-depends:       base >= 4.12 && < 5
+                     , tree-sitter ^>= 0.9.0.0
+  Include-dirs:        vendor/tree-sitter-r/src
+  install-includes:    tree_sitter/parser.h
+  c-sources:           vendor/tree-sitter-r/src/parser.c
+  extra-libraries:     stdc++
+
+source-repository head
+  type:     git
+  location: https://github.com/tree-sitter/haskell-tree-sitter