feat: add purescript filetype (#363)

Author: mkohlhaas

data/plenary/filetypes/builtin.lua

@@ -1,13 +1,13 @@
 local shebang_prefixes = { '/usr/bin/', '/bin/', '/usr/bin/env ', '/bin/env ' }
 local shebang_fts = {
-  ['sh'] = 'sh',
-  ['bash'] = 'sh',
-  ['zsh'] = 'zsh',
   ['fish'] = 'fish',
+  ['perl'] = 'perl',
   ['python'] = 'python',
   ['python2'] = 'python',
   ['python3'] = 'python',
-  ['perl'] = 'perl',
+  ['bash'] = 'sh',
+  ['sh'] = 'sh',
+  ['zsh'] = 'zsh',
 }
 
 local shebang = {}
@@ -19,36 +19,37 @@ end
 
 return {
   extension = {
+    ['_coffee'] = 'coffee',
+    ['coffee'] = 'coffee',
+    ['cljd'] = 'clojure',
+    ['dart'] = 'dart',
     ['ex'] = 'elixir',
     ['exs'] = 'elixir',
-    ['plist'] = 'xml',
-    ['gradle'] = 'groovy',
-    ['kt'] = 'kotlin',
-    ['dart'] = 'dart',
+    ['erb'] = 'eruby',
     ['fnl'] = 'fennel',
+    ['gql'] = 'graphql',
+    ['graphql'] = 'graphql',
+    ['gradle'] = 'groovy',
+    ['hbs'] = 'handlebars',
+    ['hdbs'] = 'handlebars',
     ['janet'] = 'janet',
     ['jsx'] = 'javascriptreact',
-    ['tsx'] = 'typescriptreact',
     ['jl'] = 'julia',
-    ['coffee'] = 'coffee',
-    ['_coffee'] = 'coffee',
-    ['cljd'] = 'clojure',
+    ['kt'] = 'kotlin',
     ['nix'] = 'nix',
-    ['erb'] = 'eruby',
-    ['hbs'] = 'handlebars',
-    ['hdbs'] = 'handlebars',
-    ['graphql'] = 'graphql',
-    ['gql'] = 'graphql',
+    ['purs'] = 'purescript',
     ['rkt'] = 'racket',
     ['res'] = 'rescript',
     ['resi'] = 'rescript',
+    ['tsx'] = 'typescriptreact',
+    ['plist'] = 'xml',
   },
   file_name = {
     ['cakefile'] = 'coffee',
     ['.babelrc'] = 'json',
-    ['.prettierrc'] = 'json',
     ['.eslintrc'] = 'json',
     ['.firebaserc'] = 'json',
+    ['.prettierrc'] = 'json',
   },
   shebang = shebang
 }