feat: Implement universal name validation regex for multiple cultures

packages/i18nify-go/modules/names/names.go

@@ -0,0 +1,11 @@
+package names
+
+import (
+	"regexp"
+)
+
+func ValidateName(name string) bool {
+	// Ensure rules are loaded
+	regex := regexp.MustCompile(`^[\p{L}\s\-.\/']+$`)
+	return regex.MatchString(name)
+}

packages/i18nify-go/modules/names/names_test.go

@@ -0,0 +1,80 @@
+package names
+
+import (
+	"testing"
+)
+
+// TestValidateNames validates names from multiple linguistic and cultural contexts.
+func TestValidateNames(t *testing.T) {
+	testCases := []struct {
+		name     string
+		isValid  bool
+		category string
+	}{
+
+		// Cantonese
+		{"陳小明", true, "Cantonese"},
+		{"鄭嘉穎", true, "Cantonese"},
+		{"何詠姍@", false, "Cantonese"}, // Invalid character
+		{"梁朝偉", true, "Cantonese"},
+
+		// Korean
+		{"김철수", true, "Korean"},
+		{"박지민", true, "Korean"},
+		{"최윤아@", false, "Korean"}, // Invalid character
+		{"이승기", true, "Korean"},
+		{"조영남;", false, "Korean"}, // Injection
+
+		// Malay
+		{"Ahmad bin Abdullah", true, "Malay"},
+		{"Siti binti Hassan", true, "Malay"},
+		{"Haji Osman@", false, "Malay"},        // Invalid character
+		{"  Ahmad bin Osman  ", true, "Malay"}, // Leading/trailing spaces
+
+		// Indonesian
+		{"Sukarno", true, "Indonesian"},
+		{"Ahmad bin Yusuf", true, "Indonesian"},
+		{"Fatimah binti Hasan@", false, "Indonesian"}, // Invalid character
+		{"Raden Adjeng Kartini", true, "Indonesian"},
+
+		// German
+		{"Hans Müller", true, "German"},
+		{"Jürgen Schäfer", true, "German"},
+		{"Johann@Goethe", false, "German"},  // Invalid character
+		{"Franziska-Meier", true, "German"}, // Hyphenated
+
+		// Swiss
+		{"Urs Bühler", true, "Swiss"},
+		{"Hans-Rudolf Meier", true, "Swiss"},
+		{"Émile@Zola", false, "Swiss"}, // Invalid character
+		{"Heidi Kuster", true, "Swiss"},
+
+		// American
+		{"John Smith", true, "American"},
+		{"Mary-Jane", true, "American"}, // Hyphenated
+		{"O'Connor", true, "American"},  // Apostrophe
+		{"John123", false, "American"},  // Numbers not allowed
+
+		// Latin American
+		{"José Martínez", true, "Latin American"},
+		{"Juan Carlos", true, "Latin American"},
+		{"María123", false, "Latin American"},    // Numbers not allowed
+		{"Miguel Ángel", true, "Latin American"}, // Space with special character
+
+		// Canadian
+		{"Liam O'Brien", true, "Canadian"},
+		{"Emma-Jane", true, "Canadian"},  // Hyphenated
+		{"Pierre123", false, "Canadian"}, // Numbers not allowed
+		{"Charlotte-Dupont", true, "Canadian"},
+	}
+
+	for _, testCase := range testCases {
+		t.Run(testCase.category+"_"+testCase.name, func(t *testing.T) {
+			// Validate name directly, no error handling
+			valid := ValidateName(testCase.name)
+			if valid != testCase.isValid {
+				t.Errorf("Expected validity of %v for name %q in category %q but got %v", testCase.isValid, testCase.name, testCase.category, valid)
+			}
+		})
+	}
+}