Add char_vocab.json

char_vocab.json

@@ -0,0 +1,43 @@
+{
+  "(": 2,
+  ")": 3,
+  " ": 4,
+  "+": 5,
+  "-": 6,
+  "*": 7,
+  "&": 8,
+  "|": 9,
+  "^": 10,
+  "~": 11,
+  "<": 12,
+  ">": 13,
+  "/": 14,
+  "R": 15,
+  "0": 16,
+  "1": 17,
+  "2": 18,
+  "3": 19,
+  "4": 20,
+  "5": 21,
+  "6": 22,
+  "7": 23,
+  "8": 24,
+  "9": 25,
+  "x": 26,
+  "y": 27,
+  "z": 28,
+  "A": 29,
+  "B": 30,
+  "C": 31,
+  "D": 32,
+  "E": 33,
+  "F": 34,
+  "a": 35,
+  "b": 36,
+  "c": 37,
+  "d": 38,
+  "e": 39,
+  "f": 40,
+  "<PAD>": 0,
+  "<UNK>": 1
+}