Add support for Amber-lang (#12021)

Co-authored-by: Phoenix Himself <pkaras.it@gmail.com>
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>

book/src/generated/lang-support.md

@@ -3,6 +3,7 @@
 | ada | ✓ | ✓ |  | `ada_language_server` |
 | adl | ✓ | ✓ | ✓ |  |
 | agda | ✓ |  |  |  |
+| amber | ✓ |  |  |  |
 | astro | ✓ |  |  |  |
 | awk | ✓ | ✓ |  | `awk-language-server` |
 | bash | ✓ | ✓ | ✓ | `bash-language-server` |

languages.toml

@@ -3931,3 +3931,14 @@ indent = { tab-width = 4, unit = "    " }
 [[grammar]]
 name = "spade"
 source = { git = "https://gitlab.com/spade-lang/tree-sitter-spade/", rev = "4d5b141017c61fe7e168e0a5c5721ee62b0d9572" }
+
+[[language]]
+name = "amber"
+scope = "source.ab"
+file-types = ["ab"]
+comment-token = "//"
+indent = { tab-width = 4, unit = "    " }
+
+[[grammar]]
+name = "amber"
+source = { git = "https://github.com/amber-lang/tree-sitter-amber", rev = "c6df3ec2ec243ed76550c525e7ac3d9a10c6c814" }

runtime/queries/amber/highlights.scm

@@ -0,0 +1,60 @@
+(comment) @comment
+
+[
+    "if"
+    "loop"
+    "for"
+    "return"
+    "fun"
+    "else"
+    "then"
+    "break"
+    "continue"
+    "and"
+    "or"
+    "not"
+    "let"
+    "pub"
+    "main"
+    "echo"
+    "exit"
+    "fun"
+    "import"
+    "from"
+    "as"
+    "in"
+    "fail"
+    "failed"
+    "silent"
+    "nameof"
+    "is"
+    "unsafe"
+    "trust"
+] @keyword
+
+; Literals
+(boolean) @constant.builtin.boolean
+(number) @constant.numeric
+(null) @constant.numeric
+(string) @string
+(status) @keyword
+(command) @string
+(handler) @keyword
+(block) @punctuation.delimiter
+(variable_init) @keyword
+(variable_assignment) @punctuation.delimiter
+(variable) @variable
+(escape_sequence) @constant.character.escape
+(type_name_symbol) @type
+(interpolation) @punctuation.delimiter
+(reference) @keyword
+(preprocessor_directive) @comment
+(shebang) @comment
+(function_definition
+    name: (variable) @function.method)
+(function_call
+    name: (variable) @function.method)
+(import_statement
+    "pub" @keyword
+    "import" @keyword
+    "from" @keyword)