feat: add support for jsonnet (#448)

* feat: add support for jsonnet

* chore: add jsonnet example

LANGUAGES.md

@@ -132,6 +132,7 @@ Jinja (jinja,j2,jinja2)
 JSON (json)
 JSONC (jsonc)
 JSONL (jsonl)
+Jsonnet (jsonnet,libsonnet)
 JSX (jsx)
 Julia (jl)
 Julius (julius)

examples/language/jsonnet.jsonnet

@@ -0,0 +1,40 @@
+local foo = "bar";
+
+// This is a comment
+# This is another comment
+/*
+ * This is a bigger comment
+ */
+
+{
+  local bar = "foo",
+
+  array: [
+    "foo",
+    "bar",
+    123,
+    { foo: "bar" },
+  ],
+
+  number: 3e10,
+  anotherNumber: 3.14,
+  yetAnotherNumber: 4,
+  bool: true,
+
+  f:: function(x) x > 0,
+
+  object: {
+    foo: $.f(1) || $.f(-1),
+    bar: if std.objectHas(self, "foo") then "foo" else "bar",
+    another: {
+      foo: self["bar.bar"],
+    },
+  } + {
+    another+: {
+      "bar.bar": |||
+        foo
+        %(bar)s
+      ||| % $.object,
+    },
+  },
+}

languages.json

@@ -3628,6 +3628,56 @@
     "multi_line": [],
     "quotes": []
   },
+  "Jsonnet": {
+    "complexitychecks": [
+      "for",
+      "if",
+      "else",
+      "||",
+      "&&",
+      "!=",
+      "=="
+    ],
+    "extensions": [
+      "jsonnet",
+      "libsonnet"
+    ],
+    "line_comment": [
+      "#",
+      "//"
+    ],
+    "multi_line": [
+      [
+        "/*",
+        "*/"
+      ]
+    ],
+    "quotes": [
+      {
+        "end": "\"",
+        "start": "\""
+      },
+      {
+        "end": "'",
+        "start": "'"
+      },
+      {
+        "end": "|||",
+        "start": "|||"
+      },
+      {
+        "end": "\"",
+        "start": "@\""
+      },
+      {
+        "end": "'",
+        "start": "@'"
+      }
+    ],
+    "shebangs": [
+      "jsonnet"
+    ]
+  },
   "JSX": {
     "complexitychecks": [
       "for ",