chore: update code format. (#628)

core/stringx/replacer.go

@@ -16,7 +16,7 @@ type (
 
 // NewReplacer returns a Replacer.
 func NewReplacer(mapping map[string]string) Replacer {
-	var rep = &replacer{
+	rep := &replacer{
 		mapping: mapping,
 	}
 	for k := range mapping {
@@ -28,9 +28,9 @@ func NewReplacer(mapping map[string]string) Replacer {
 
 func (r *replacer) Replace(text string) string {
 	var builder strings.Builder
-	var chars = []rune(text)
-	var size = len(chars)
-	var start = -1
+	chars := []rune(text)
+	size := len(chars)
+	start := -1
 
 	for i := 0; i < size; i++ {
 		child, ok := r.children[chars[i]]
@@ -42,12 +42,12 @@ func (r *replacer) Replace(text string) string {
 		if start < 0 {
 			start = i
 		}
-		var end = -1
+		end := -1
 		if child.end {
 			end = i + 1
 		}
 
-		var j = i + 1
+		j := i + 1
 		for ; j < size; j++ {
 			grandchild, ok := child.children[chars[j]]
 			if !ok {