works as expected

Author: EvilLord666

formatter.go

@@ -218,7 +218,8 @@ func FormatComplex(template string, args map[string]any) string {
 				if !ok {
 					formatOptionIndex := strings.Index(argNumberStr, argumentFormatSeparator)
 					if formatOptionIndex >= 0 {
-						argFormatOptions = strings.Trim(argNumberStr[formatOptionIndex+1:], " ")
+						// argFormatOptions = strings.Trim(argNumberStr[formatOptionIndex+1:], " ")
+						argFormatOptions = argNumberStr[formatOptionIndex+1:]
 						argNumberStr = strings.Trim(argNumberStr[:formatOptionIndex], " ")
 					}
 

formatter_test.go

@@ -299,6 +299,21 @@ func TestFormatComplexWithArgFormatting(t *testing.T) {
 			args:     map[string]any{"float": 10.5467890},
 			expected: "This is the text with an only number formatting: decimal - 10.546789 / 10.5468 / 10.54678900",
 		},
+		"list_with_default_sep": {
+			template: "This is a list(slice) test: {list:L}",
+			args:     map[string]any{"list": []any{"s1", "s2", "s3"}},
+			expected: "This is a list(slice) test: s1,s2,s3",
+		},
+		"list_with_dash_sep": {
+			template: "This is a list(slice) test: {list:L-}",
+			args:     map[string]any{"list": []any{"s1", "s2", "s3"}},
+			expected: "This is a list(slice) test: s1-s2-s3",
+		},
+		"list_with_space_sep": {
+			template: "This is a list(slice) test: {list:L }",
+			args:     map[string]any{"list": []any{"s1", "s2", "s3"}},
+			expected: "This is a list(slice) test: s1 s2 s3",
+		},
 	} {
 		t.Run(name, func(t *testing.T) {
 			assert.Equal(t, test.expected, stringFormatter.FormatComplex(test.template, test.args))