feat(sproto): add parser

SUPPORTED_LANGUAGES.md

@@ -269,6 +269,7 @@ jsx (queries only)[^jsx] | unstable | `HFIJ ` |   | @steelsojka
 [sosl](https://github.com/aheber/tree-sitter-sfapex) | unstable | `H    ` |   | @aheber, @xixiafinland
 [sourcepawn](https://github.com/nilshelmig/tree-sitter-sourcepawn) | unstable | `H  JL` |   | @Sarrus1
 [sparql](https://github.com/GordianDziwis/tree-sitter-sparql) | unstable | `HFIJL` |   | @GordianDziwis
+[sproto](https://github.com/hanxi/tree-sitter-sproto) | unstable | `HFIJ ` |   | @hanxi
 [sql](https://github.com/derekstride/tree-sitter-sql) | unstable | `HFIJ ` |   | @derekstride
 [squirrel](https://github.com/tree-sitter-grammars/tree-sitter-squirrel) | unstable | `HFIJL` |   | @amaanq
 [ssh_config](https://github.com/tree-sitter-grammars/tree-sitter-ssh-config) | unstable | `HFIJL` |   | @ObserverOfTime

lua/nvim-treesitter/parsers.lua

@@ -2115,6 +2115,14 @@ return {
     maintainers = { '@GordianDziwis' },
     tier = 2,
   },
+  sproto = {
+    install_info = {
+      revision = 'd554c1456e35e7b2690552d52921c987d0cf6799',
+      url = 'https://github.com/hanxi/tree-sitter-sproto',
+    },
+    maintainers = { '@hanxi' },
+    tier = 2,
+  },
   sql = {
     install_info = {
       branch = 'gh-pages',

runtime/queries/sproto/folds.scm

@@ -0,0 +1,6 @@
+[
+  (type_definition)
+  (protocol_definition)
+  (request_block)
+  (response_block)
+] @fold

runtime/queries/sproto/highlights.scm

@@ -0,0 +1,47 @@
+(comment) @comment @spell
+
+[
+  "."
+  ":"
+] @punctuation.delimiter
+
+"*" @operator
+
+[
+  "request"
+  "response"
+] @keyword
+
+(type_definition
+  name: (identifier) @type)
+
+(nested_type_definition
+  name: (identifier) @type)
+
+(type_specifier) @type
+
+[
+  "integer"
+  "boolean"
+  "string"
+  "binary"
+  "double"
+] @type.builtin
+
+(protocol_definition
+  name: (identifier) @function)
+
+(field_definition
+  name: (identifier) @property)
+
+(map_specifier
+  key: (identifier) @property)
+
+(integer) @number
+
+[
+  "("
+  ")"
+  "{"
+  "}"
+] @punctuation.bracket

runtime/queries/sproto/indents.scm

@@ -0,0 +1,10 @@
+[
+  (type_definition)
+  (protocol_definition)
+  (request_block)
+  (response_block)
+] @indent.begin
+
+"}" @indent.end @indent.branch
+
+(comment) @indent.auto

runtime/queries/sproto/injections.scm

@@ -0,0 +1,2 @@
+((comment) @injection.content
+  (#set! injection.language "comment"))