Add Unison support (helix-editor#7724)

book/src/generated/lang-support.md

@@ -155,6 +155,7 @@
 | twig | ✓ |  |  |  |
 | typescript | ✓ | ✓ | ✓ | `typescript-language-server` |
 | ungrammar | ✓ |  |  |  |
+| unison | ✓ |  |  |  |
 | uxntal | ✓ |  |  |  |
 | v | ✓ | ✓ | ✓ | `v-analyzer` |
 | vala | ✓ |  |  | `vala-language-server` |

languages.toml

@@ -2713,3 +2713,26 @@ injection-regex = "wren"
 file-types = ["wren"]
 roots = []
 indent = { tab-width = 2, unit = "  "}
+
+[[language]]
+name = "unison"
+scope = "source.unison"
+injection-regex = "unison"
+file-types = ["u"]
+shebangs = []
+roots = []
+auto-format = false
+comment-token = "--"
+indent = { tab-width = 4, unit = "    " }
+
+[language.auto-pairs]
+'(' = ')'
+'{' = '}'
+'[' = ']'
+'"' = '"'
+'`' = '`'
+
+[[grammar]]
+name = "unison"
+source = { git = "https://github.com/kylegoetz/tree-sitter-unison", rev = "98c4e8bc5c9f5989814a720457cf36963cf4043d" }
+

runtime/queries/unison/highlights.scm

@@ -0,0 +1,72 @@
+;; Primitives
+(comment) @comment
+(nat) @constant.numeric
+(unit) @constant.builtin
+(literal_char) @constant.character
+(literal_text) @string
+(literal_boolean) @constant.builtin.boolean
+
+;; Keywords
+[
+  (kw_forall)
+  (unique_kw)
+  (type_kw)
+  (kw_equals)
+  (do)
+] @keyword
+
+(kw_let) @keyword.function
+(type_kw) @keyword.storage.type
+(unique) @keyword.storage.modifier
+("use") @keyword.control.import
+
+
+[
+  (type_constructor)
+] @constructor
+
+[
+  (operator)
+  (pipe)
+  (arrow_symbol)
+  (">")
+  (or)
+  (bang)
+] @operator
+
+[
+  "if"
+  "else"
+  "then"
+  (match)
+  (with)
+  (cases)
+] @keyword.control.conditional
+
+(blank_pattern) @variable.builtin
+
+;; Types
+(record_field name: (wordy_id) @variable.other.member type: (wordy_id) @type)
+[
+  (type_name)
+  (type_signature)
+  (effect)
+] @type
+
+(term_definition) @variable
+
+;; Punctuation
+[
+  (type_signature_colon)
+  ":"
+] @punctuation.delimiter
+
+[
+  "("
+  ")"
+  "{"
+  "}"
+  "["
+  "]"
+] @punctuation.bracket
+

runtime/queries/unison/injections.scm

@@ -0,0 +1 @@
+((doc_block) @injection.content (#set! injection.language "markdown"))