feat: Support multiple return

Author: soulteary

internal/updater/updater.go

@@ -9,16 +9,55 @@ import (
 )
 
 func EncodeEscapeChars(s string) string {
-	return strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(s, `\t`, `{{\\}}t`), `\s`, `{{\\}}s`), `\r`, `{{\\}}r`), `\n`, `{{\\}}n`)
+	return strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(s, `\t`, `【\\】t`), `\s`, `【\\】s`), `\r`, `【\\】r`), `\n`, `【\\】n`)
 }
 
 func DecodeEscapeChars(s string) string {
-	return strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(s, `{{\}}t`, `\t`), `{{\}}s`, `\s`), `{{\}}r`, `\r`), `{{\}}n`, `\n`)
+	return strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(strings.ReplaceAll(s, `【\】t`, `\t`), `【\】s`, `\s`), `【\】r`, `\r`), `【\】n`, `\n`)
+}
+
+// scenes:
+//
+//		return 200 "1" ;
+//		return 200 "1";
+//		return   "1" ;
+//		return  200;
+//		return  "aaa\naa";
+//		return  200 "a\n"   ;
+//	 	return BACKEND\n;
+func FixReturn(s string) string {
+	var scene1 = regexp.MustCompile(`return\s+(\d+)\s(\S+)\s*;`)
+	var scene2 = regexp.MustCompile(`return\s+(\d+)\s"(\S+)"\s*;`)
+	var scene3 = regexp.MustCompile(`return\s+(\S+)\s*;`)
+	var scene4 = regexp.MustCompile(`return\s+"(\S+)"\s*;`)
+	var scene5 = regexp.MustCompile(`return\s+(\d+)\s*;`)
+
+	if scene1.MatchString(s) {
+		if scene2.MatchString(s) { // eg: `return 200 "ok";`
+			s = scene2.ReplaceAllString(s, "return $1 \"$2\";")
+		} else { // eg: `return 200 $content;`
+			s = scene1.ReplaceAllString(s, "return $1 \"$2\";")
+		}
+	} else if scene3.MatchString(s) {
+		if scene5.MatchString(s) { // eg: `return 200;`
+			s = scene5.ReplaceAllString(s, "return $1;")
+		} else if scene4.MatchString(s) { // eg: `return "ok";`
+			s = scene4.ReplaceAllString(s, "return \"$1\";")
+		} else { // eg: `return BACKEND\n;`
+			found := scene3.FindString(s)
+			if !(strings.HasPrefix(found, `"`) && strings.HasSuffix(found, `"`)) {
+				s = scene3.ReplaceAllString(s, "return $1;")
+			} else {
+				s = scene3.ReplaceAllString(s, "return \"$1\";")
+			}
+		}
+	}
+	return s
 }
 
 func FixVars(s string) string {
 	s = regexp.MustCompile(`(\$)(\{\S+?\})`).ReplaceAllString(s, "[dollar]$2")
-	return regexp.MustCompile(`(return\s+\d+\s+?)([\s\S]+?);`).ReplaceAllString(s, "$1\"$2\";")
+	return s
 }
 
 func UpdateConfInDir(rootDir string, fn func(s string) (string, error)) error {
@@ -37,7 +76,7 @@ func UpdateConfInDir(rootDir string, fn func(s string) (string, error)) error {
 				return err
 			}
 
-			modifiedData, err := fn(FixVars(EncodeEscapeChars(string(data))))
+			modifiedData, err := fn(FixVars(FixReturn(EncodeEscapeChars(string(data)))))
 			if err != nil {
 				return err
 			}