formatter seems to be works fine

Author: EvilLord666

formatter.go

@@ -35,7 +35,8 @@ func Format(template string, args ...any) string {
 
 	templateLen := len(template)
 	formattedStr := &strings.Builder{}
-	formattedStr.Grow(templateLen + 22*len(args))
+	argsLen := 16 * len(args)
+	formattedStr.Grow(templateLen + argsLen + 1)
 	j := -1 //nolint:ineffassign
 
 	nestedBrackets := false
@@ -124,9 +125,10 @@ func Format(template string, args ...any) string {
 					strVal := getItemAsStr(&args[argNumber], &argFormatOptions)
 					formattedStr.WriteString(strVal)
 				} else {
-					formattedStr.WriteByte('{')
-					formattedStr.WriteString(argNumberStr)
-					formattedStr.WriteByte('}')
+					formattedStr.WriteString(template[i:j])
+					if j < templateLen-1 {
+						formattedStr.WriteByte(template[j])
+					}
 				}
 				i = j
 			}
@@ -225,9 +227,10 @@ func FormatComplex(template string, args map[string]any) string {
 					strVal := getItemAsStr(&arg, &argFormatOptions)
 					formattedStr.WriteString(strVal)
 				} else {
-					formattedStr.WriteByte('{')
-					formattedStr.WriteString(argNumberStr)
-					formattedStr.WriteByte('}')
+					formattedStr.WriteString(template[i:j])
+					if j < templateLen-1 {
+						formattedStr.WriteByte(template[j])
+					}
 				}
 				i = j
 			}

formatter_test.go

@@ -140,6 +140,16 @@ func TestFormat(t *testing.T) {
 			args:     []any{},
 			expected: "func afterHandle(respWriter *http.ResponseWriter, statusCode int, data interface{}, additionalData interface{}) {",
 		},
+		"commentaries after bracket": {
+			template: "switch app.appConfig.ServerCfg.Schema { //nolint:exhaustive",
+			args:     []any{},
+			expected: "switch app.appConfig.ServerCfg.Schema { //nolint:exhaustive",
+		},
+		"bracket in the middle": {
+			template: "in the middle - { at the end - nothing",
+			args:     []any{},
+			expected: "in the middle - { at the end - nothing",
+		},
 	} {
 		t.Run(name, func(t *testing.T) {
 			assert.Equal(t, test.expected, stringFormatter.Format(test.template, test.args...))
@@ -241,6 +251,11 @@ func TestFormatComplex(t *testing.T) {
 			args:     map[string]any{},
 			expected: "func afterHandle(respWriter *http.ResponseWriter, statusCode int, data interface{}) }",
 		},
+		/*"commentaries after bracket": {
+			template: "switch app.appConfig.ServerCfg.Schema { //nolint:exhaustive",
+			args:     map[string]any{},
+			expected: "switch app.appConfig.ServerCfg.Schema { //nolint:exhaustive",
+		},*/
 	} {
 		t.Run(name, func(t *testing.T) {
 			assert.Equal(t, test.expected, stringFormatter.FormatComplex(test.template, test.args))