fix(style): match expression (#31)

* chore: parser upgrade

* insert spaces around alternate pattern delimiter ('|')

* insert space before closing brace in single line match expression

---------

Co-authored-by: Bahex <[email protected]>

Author: blindFS

languages.ncl

@@ -4,7 +4,7 @@
       extensions = ["nu"],
       grammar.source.git = {
         git = "https://github.com/nushell/tree-sitter-nu.git",
-        rev = "0e6c59c46db3c246eaf86ce5b325da1247e971a5",
+        rev = "d9d6ad2c836bc3bd5010ab7850bc6da9498ca576",
       },
     },
   },

languages/nu.scm

@@ -258,8 +258,11 @@
   scrutinee: _? @append_space
   (match_arm)? @prepend_spaced_softline
   (default_arm)? @prepend_spaced_softline
+  "}"? @prepend_spaced_softline
 )
 
+(match_pattern "|" @prepend_spaced_softline @append_space )
+
 ;; data structures
 (command_list
   [

test/expected_ctrl.nu

@@ -23,7 +23,9 @@ match $foo {
 }
 match $foo {
   [a b c] => 0
+  a | b | c => 42
 }
+match $foo { null => { return "default" } $val => $val }
 # while
 mut x = 0; while $x < 10 { $x = $x + 1 }; $x # while comment
 # loop

test/input_ctrl.nu

@@ -23,7 +23,9 @@ match $foo {
 }
 match  $foo {
   [ a  b  c] => 0
+  a|b|c => 42
 }
+match $foo {null => {return "default"}   $val => $val}
 # while
 mut x = 0; while $x < 10 { $x = $x + 1 }; $x # while comment
 # loop