Add support for Stata (#1112)

* add support for stata

* readme

* add test

README.md

@@ -519,6 +519,7 @@ SpecmanE
 Spice
 Sql
 SRecode
+Stata
 Stratego
 Svelte
 Svg

languages.json

@@ -1538,6 +1538,11 @@
       "quotes": [["\\\"", "\\\""]],
       "extensions": ["stan"]
     },
+    "Stata": {
+      "line_comment": ["//", "*"],
+      "multi_line_comments": [["/*", "*/"]],
+      "extensions": ["do"]
+    },
     "Stratego": {
       "name": "Stratego/XT",
       "line_comment": ["//"],

tests/data/stata.do

@@ -0,0 +1,16 @@
+* 16 lines 6 code 7 comments 3 blanks
+* This is a comment
+**** Any number of * symbol
+
+use "foo.dta", replace
+gen x = 1*2
+gen x2 = 1/2
+/*
+Here's a comment block
+*/
+
+if c(username) == "foobar" {
+    global FOO 1
+}
+
+// Finally another symbol for comment