Add opposite values and README.md

lexer.go

@@ -24,8 +24,8 @@ var scptLexer = lexer.Must(stateful.NewSimple([]stateful.Rule{
 	{"Ident", `[a-zA-Z_]\w*`, nil},
 	{"String", `"[^"]*"`, nil},
 	{"Number", `(?:\d*\.)?\d+`, nil},
-	{"Punct", `[-[!@$&(){}\|:;"',.?/]|]`, nil},
+	{"Punct", `[![@$&(){}\|:;"',.?]|]`, nil},
 	{"Whitespace", `[ \t\r\n]+`, nil},
 	{"Comment", `(###(.|\n)+###|#[^\n]+)`, nil},
-	{"Operator", `(>=|<=|>|<|==|!=)|[-+*/^%]`, nil},
+	{"Operator", `(>=|<=|>|<|==|!=)|[-+*%/^]`, nil},
 }))