Support rule precedence just like the old format

runtime/syntax/go.yaml

@@ -17,7 +17,7 @@ rules:
     - statement: "!"
     - statement: ","
     - constant.number: "\\b([0-9]+|0x[0-9a-fA-F]*)\\b"
-    - constant.specialChar: "\\([0-7]{3|x[A-Fa-f0-9]{2}|u[A-Fa-f0-9]{4}|U[A-Fa-f0-9]{8})"
+    - constant.specialChar: "\\\\([0-7]{3|x[A-Fa-f0-9]{2}|u[A-Fa-f0-9]{4}|U[A-Fa-f0-9]{8})"
 
     - comment:
         start: "//"

runtime/syntax/syntax_checker.go

@@ -14,7 +14,7 @@ func main() {
 	hadErr := false
 	for _, f := range files {
 		if strings.HasSuffix(f.Name(), ".yaml") {
-			input, _ := ioutil.ReadFile("/Users/zachary/gocode/src/github.com/zyedidia/highlight/syntax_files/" + f.Name())
+			input, _ := ioutil.ReadFile(f.Name())
 			_, err := highlight.ParseDef(input)
 			if err != nil {
 				hadErr = true