+ // }\r
+ index = 0;\r
+ }\r
+ else if (key == 8 || key == 127) {\r
+ if (numWords > 0) {\r
+ if (words[numWords-1].len == 1 && words[numWords-1].str[0] == '(') level--;\r
+ if (words[numWords-1].len == 1 && words[numWords-1].str[0] == ')') level++;\r
+ numWords--;\r