Add support for 8th language (#1192)

* Add support for 8th language

* Update languages.json

---------

Co-authored-by: XAMPPRocky <4464295+XAMPPRocky@users.noreply.github.com>

languages.json

@@ -472,6 +472,14 @@
       "line_comment": [";"],
       "extensions": ["edn"]
     },
+    "Eighth": {
+      "name": "8th",
+      "line_comment": ["\\\\ ", "-- "],
+      "multi_line_comments": [["(*", "*)"]],
+      "nested": true,
+      "quotes": [["\\\"", "\\\""]],
+      "extensions": ["8th"]
+    },
     "Elisp": {
       "name": "Emacs Lisp",
       "line_comment": [";"],

tests/data/eight.8th

@@ -0,0 +1,22 @@
+\ 22 lines 9 code 8 comments 5 blanks
+
+(* multiline comments
+  (* a nested 
+     comment *)
+ *
+ *)
+
+-- here's a single line comment
+"Hello, " var, foo -- line ending comment
+
+\ here's another single line comment
+"!" var, bar \ a different line ending comment
+
+: hello   \ s --
+  foo @ s:<+ 
+  bar @ s:+
+  . cr
+;
+
+"World" hello
+bye