first commit

arg/arg.go

@@ -0,0 +1,19 @@
+package arg
+
+import "fmt"
+
+// Arg defaults argument.
+type Arg struct {
+	Key   string
+	Value interface{}
+}
+
+// String arg to string.
+func (a Arg) String() string {
+	return fmt.Sprintf("key:%s, value:%v", a.Key, a.Value)
+}
+
+// Val gets valuet argument.
+func (a Arg) Val() interface{} {
+	return a.Value
+}

arg/currency.go

@@ -0,0 +1,45 @@
+package arg
+
+import "fmt"
+
+// FormatCurrency types format.
+type FormatCurrency int
+
+// Currency format.
+const (
+	CurrencyFormatSymbol FormatCurrency = iota + 1
+	CurrencyFormatISO
+	CurrencyFormatNarrowSymbol
+)
+
+// CurrencyOption configures option.
+type CurrencyOption func(*Currency)
+
+// WithCurrencyFormat sets format currency.
+func WithCurrencyFormat(format FormatCurrency) CurrencyOption {
+	return func(c *Currency) { c.Format = format }
+}
+
+// WithCurrencyISO sets ISO 4217 code currecy.
+func WithCurrencyISO(iso string) CurrencyOption {
+	return func(c *Currency) { c.ISO = iso }
+}
+
+// Currency argument.
+type Currency struct {
+	Key    string
+	Value  interface{}
+	Format FormatCurrency
+	// ISO 3-letter ISO 4217
+	ISO string
+}
+
+// String gets string from currency.
+func (a Currency) String() string {
+	return fmt.Sprintf("currency key:%s, value:%v", a.Key, a.Value)
+}
+
+// Val gets value currency.
+func (a Currency) Val() interface{} {
+	return a.Value
+}

arg/number.go

@@ -0,0 +1,49 @@
+package arg
+
+import "fmt"
+
+// FormatNumber format number.
+type FormatNumber int
+
+// format argument.
+const (
+	NumberFormatDecimal FormatNumber = iota + 1
+	NumberFormatPercent
+	NumberFormatPerMille
+	NumberFormatEngineering
+	NumberFormatScientific
+)
+
+// NumberOption configure number argument.
+type NumberOption func(*Number)
+
+// WithNumberFormat sets format number.
+func WithNumberFormat(format FormatNumber) NumberOption {
+	return func(n *Number) { n.Format = format }
+}
+
+// Number argument.
+type Number struct {
+	Key    string
+	Value  interface{}
+	Format FormatNumber
+}
+
+// Configure number.
+func (n Number) Configure(opts ...NumberOption) Number {
+	for _, o := range opts {
+		o(&n)
+	}
+
+	return n
+}
+
+// Val gets number value.
+func (n Number) Val() interface{} {
+	return n.Value
+}
+
+// String number to string.
+func (n Number) String() string {
+	return fmt.Sprintf("number key: %s, value: %v", n.Key, n.Value)
+}