add Mojo support (#1107) (#1185)

* fix #1107

Adds support for Mojo language

* add Mojo support with test (#1107)

* add Mojo support with test (#1107)

* add Mojo support with test (#1107)

languages.json

@@ -1107,6 +1107,12 @@
       "extensions": ["def"],
       "line_comment": [";"]
     },
+    "Mojo": {
+      "line_comment": ["#"],
+      "doc_quotes": [["\\\"\\\"\\\"", "\\\"\\\"\\\""], ["'''", "'''"]],
+      "quotes": [["\\\"", "\\\""], ["'", "'"]],
+      "extensions": ["mojo", "🔥"]
+    },
     "MonkeyC": {
       "name": "Monkey C",
       "extensions": ["mc"],

tests/data/mojo.mojo

@@ -0,0 +1,21 @@
+# 21 lines 15 code 3 comments 3 blanks
+
+
+'''
+This is a docstring.
+# It has multiple lines.
+This is the end of the docstring.
+'''
+def main():
+    # Hello Mojo!
+    string = "Hello Mojo!"
+    # The following line prints the string "Hello Mojo!"
+    print(string)
+
+    """
+    This piece of code prints 
+    the numbers "9", "6", and "3".
+    'Here is a quote.'
+    """
+    for x in range(9, 0, -3):
+        print(x)