func main() {

	// NOTE: this example is omitting allot of error checking for brevity
	e := en.New()
	universalTraslator = ut.New(e, e, en_CA.New(), nl.New(), fr.New())

	en, _ := universalTraslator.GetTranslator("en")

	// generally used after parsing an http 'Accept-Language' header
	// and this will try to find a matching locale you support or
	// fallback locale.
	// en, _ := ut.FindTranslator([]string{"en", "en_CA", "nl"})

	// this will help
	fmt.Println("Cardinal Plural Rules:", en.PluralsCardinal())
	fmt.Println("Ordinal Plural Rules:", en.PluralsOrdinal())
	fmt.Println("Range Plural Rules:", en.PluralsRange())

	// add basic language only translations
	// last param indicates if it's ok to override the translation if one already exists
	en.Add("welcome", "Welcome {0} to our test", false)

	// add language translations dependant on cardinal plural rules
	en.AddCardinal("days", "You have {0} day left to register", locales.PluralRuleOne, false)
	en.AddCardinal("days", "You have {0} days left to register", locales.PluralRuleOther, false)

	// add language translations dependant on ordinal plural rules
	en.AddOrdinal("day-of-month", "{0}st", locales.PluralRuleOne, false)
	en.AddOrdinal("day-of-month", "{0}nd", locales.PluralRuleTwo, false)
	en.AddOrdinal("day-of-month", "{0}rd", locales.PluralRuleFew, false)
	en.AddOrdinal("day-of-month", "{0}th", locales.PluralRuleOther, false)

	// add language translations dependant on range plural rules
	// NOTE: only one plural rule for range in 'en' locale
	en.AddRange("between", "It's {0}-{1} days away", locales.PluralRuleOther, false)

	// now lets use the translations we just added, in the same order we added them

	fmt.Println(en.T("welcome", "Joeybloggs"))

	fmt.Println(en.C("days", 1, 0, en.FmtNumber(1, 0))) // you'd normally have variables defined for 1 and 0
	fmt.Println(en.C("days", 2, 0, en.FmtNumber(2, 0)))
	fmt.Println(en.C("days", 10456.25, 2, en.FmtNumber(10456.25, 2)))

	fmt.Println(en.O("day-of-month", 1, 0, en.FmtNumber(1, 0)))
	fmt.Println(en.O("day-of-month", 2, 0, en.FmtNumber(2, 0)))
	fmt.Println(en.O("day-of-month", 3, 0, en.FmtNumber(3, 0)))
	fmt.Println(en.O("day-of-month", 4, 0, en.FmtNumber(4, 0)))
	fmt.Println(en.O("day-of-month", 10456.25, 0, en.FmtNumber(10456.25, 0)))

	fmt.Println(en.R("between", 0, 0, 1, 0, en.FmtNumber(0, 0), en.FmtNumber(1, 0)))
	fmt.Println(en.R("between", 1, 0, 2, 0, en.FmtNumber(1, 0), en.FmtNumber(2, 0)))
	fmt.Println(en.R("between", 1, 0, 100, 0, en.FmtNumber(1, 0), en.FmtNumber(100, 0)))
}
func TestOrdinalTranslation(t *testing.T) {

	e := en.New()
	uni := New(e, e)
	en, found := uni.GetTranslator("en")
	if !found {
		t.Fatalf("Expected '%t' Got '%t'", true, found)
	}

	translations := []struct {
		key           interface{}
		trans         string
		rule          locales.PluralRule
		expected      error
		expectedError bool
		override      bool
	}{
		// bad translation
		{
			key:           "day",
			trans:         "st",
			rule:          locales.PluralRuleOne,
			expected:      &ErrOrdinalTranslation{text: fmt.Sprintf("error: parameter '%s' not found, may want to use 'Add' instead of 'AddOrdinal'", paramZero)},
			expectedError: true,
		},
		{
			key:      "day",
			trans:    "{0}sfefewt",
			rule:     locales.PluralRuleOne,
			expected: nil,
		},
		{
			key:      "day",
			trans:    "{0}nd",
			rule:     locales.PluralRuleTwo,
			expected: nil,
		},
		{
			key:      "day",
			trans:    "{0}rd",
			rule:     locales.PluralRuleFew,
			expected: nil,
		},
		{
			key:      "day",
			trans:    "{0}th",
			rule:     locales.PluralRuleOther,
			expected: nil,
		},
		// bad translation
		{
			key:           "day",
			trans:         "{0}th",
			rule:          locales.PluralRuleOther,
			expected:      &ErrConflictingTranslation{key: "day", rule: locales.PluralRuleOther, text: "{0}th"},
			expectedError: true,
		},
		{
			key:      "day",
			trans:    "{0}st",
			rule:     locales.PluralRuleOne,
			expected: nil,
			override: true,
		},
	}

	for _, tt := range translations {

		err := en.AddOrdinal(tt.key, tt.trans, tt.rule, tt.override)
		if err != tt.expected {
			if !tt.expectedError || err.Error() != tt.expected.Error() {
				t.Errorf("Expected '<nil>' Got '%s'", err)
			}
		}
	}

	tests := []struct {
		key           interface{}
		num           float64
		digits        uint64
		param         string
		expected      string
		expectedError bool
	}{
		{
			key:      "day",
			num:      1,
			digits:   0,
			param:    string(en.FmtNumber(1, 0)),
			expected: "1st",
		},
		{
			key:      "day",
			num:      2,
			digits:   0,
			param:    string(en.FmtNumber(2, 0)),
			expected: "2nd",
		},
		{
			key:      "day",
			num:      3,
			digits:   0,
			param:    string(en.FmtNumber(3, 0)),
			expected: "3rd",
		},
		{
			key:      "day",
			num:      4,
			digits:   0,
			param:    string(en.FmtNumber(4, 0)),
			expected: "4th",
		},
		{
			key:      "day",
			num:      10258.43,
			digits:   0,
			param:    string(en.FmtNumber(10258.43, 0)),
			expected: "10,258th",
		},
		// bad translation
		{
			key:           "d-day",
			num:           10258.43,
			digits:        0,
			param:         string(en.FmtNumber(10258.43, 0)),
			expected:      "",
			expectedError: true,
		},
	}

	for _, tt := range tests {

		s, err := en.O(tt.key, tt.num, tt.digits, tt.param)
		if err != nil {
			if !tt.expectedError && err != ErrUnknowTranslation {
				t.Errorf("Expected '<nil>' Got '%s'", err)
			}
		}

		if s != tt.expected {
			t.Errorf("Expected '%s' Got '%s'", tt.expected, s)
		}
	}
}