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How to use format method of lang Package

Best Gauge code snippet using lang.format

format.go

Source:format.go

...5import (6	"fmt"7	"io"8	"sort"9	"golang.org/x/text/internal/format"10	"golang.org/x/text/internal/language/compact"11)12// Amount is an amount-currency unit pair.13type Amount struct {14	amount   interface{} // Change to decimal(64|128).15	currency Unit16}17// Currency reports the currency unit of this amount.18func (a Amount) Currency() Unit { return a.currency }19// TODO: based on decimal type, but may make sense to customize a bit.20// func (a Amount) Decimal()21// func (a Amount) Int() (int64, error)22// func (a Amount) Fraction() (int64, error)23// func (a Amount) Rat() *big.Rat24// func (a Amount) Float() (float64, error)25// func (a Amount) Scale() uint26// func (a Amount) Precision() uint27// func (a Amount) Sign() int28//29// Add/Sub/Div/Mul/Round.30var space = []byte(" ")31// Format implements fmt.Formatter. It accepts format.State for32// language-specific rendering.33func (a Amount) Format(s fmt.State, verb rune) {34	v := formattedValue{35		currency: a.currency,36		amount:   a.amount,37		format:   defaultFormat,38	}39	v.Format(s, verb)40}41// formattedValue is currency amount or unit that implements language-sensitive42// formatting.43type formattedValue struct {44	currency Unit45	amount   interface{} // Amount, Unit, or number.46	format   *options47}48// Format implements fmt.Formatter. It accepts format.State for49// language-specific rendering.50func (v formattedValue) Format(s fmt.State, verb rune) {51	var lang compact.ID52	if state, ok := s.(format.State); ok {53		lang, _ = compact.RegionalID(compact.Tag(state.Language()))54	}55	// Get the options. Use DefaultFormat if not present.56	opt := v.format57	if opt == nil {58		opt = defaultFormat59	}60	cur := v.currency61	if cur.index == 0 {62		cur = opt.currency63	}64	// TODO: use pattern.65	io.WriteString(s, opt.symbol(lang, cur))66	if v.amount != nil {67		s.Write(space)68		// TODO: apply currency-specific rounding69		scale, _ := opt.kind.Rounding(cur)70		if _, ok := s.Precision(); !ok {71			fmt.Fprintf(s, "%.*f", scale, v.amount)72		} else {73			fmt.Fprint(s, v.amount)74		}75	}76}77// Formatter decorates a given number, Unit or Amount with formatting options.78type Formatter func(amount interface{}) formattedValue79// func (f Formatter) Options(opts ...Option) Formatter80// TODO: call this a Formatter or FormatFunc?81var dummy = USD.Amount(0)82// adjust creates a new Formatter based on the adjustments of fn on f.83func (f Formatter) adjust(fn func(*options)) Formatter {84	var o options = *(f(dummy).format)85	fn(&o)86	return o.format87}88// Default creates a new Formatter that defaults to currency unit c if a numeric89// value is passed that is not associated with a currency.90func (f Formatter) Default(currency Unit) Formatter {91	return f.adjust(func(o *options) { o.currency = currency })92}93// Kind sets the kind of the underlying currency unit.94func (f Formatter) Kind(k Kind) Formatter {95	return f.adjust(func(o *options) { o.kind = k })96}97var defaultFormat *options = ISO(dummy).format98var (99	// Uses Narrow symbols. Overrides Symbol, if present.100	NarrowSymbol Formatter = Formatter(formNarrow)101	// Use Symbols instead of ISO codes, when available.102	Symbol Formatter = Formatter(formSymbol)103	// Use ISO code as symbol.104	ISO Formatter = Formatter(formISO)105	// TODO:106	// // Use full name as symbol.107	// Name Formatter108)109// options configures rendering and rounding options for an Amount.110type options struct {111	currency Unit112	kind     Kind113	symbol func(compactIndex compact.ID, c Unit) string114}115func (o *options) format(amount interface{}) formattedValue {116	v := formattedValue{format: o}117	switch x := amount.(type) {118	case Amount:119		v.amount = x.amount120		v.currency = x.currency121	case *Amount:122		v.amount = x.amount123		v.currency = x.currency124	case Unit:125		v.currency = x126	case *Unit:127		v.currency = *x128	default:129		if o.currency.index == 0 {130			panic("cannot format number without a currency being set")131		}132		// TODO: Must be a number.133		v.amount = x134		v.currency = o.currency135	}136	return v137}138var (139	optISO    = options{symbol: lookupISO}140	optSymbol = options{symbol: lookupSymbol}141	optNarrow = options{symbol: lookupNarrow}142)143// These need to be functions, rather than curried methods, as curried methods144// are evaluated at init time, causing tables to be included unconditionally.145func formISO(x interface{}) formattedValue    { return optISO.format(x) }146func formSymbol(x interface{}) formattedValue { return optSymbol.format(x) }147func formNarrow(x interface{}) formattedValue { return optNarrow.format(x) }148func lookupISO(x compact.ID, c Unit) string    { return c.String() }149func lookupSymbol(x compact.ID, c Unit) string { return normalSymbol.lookup(x, c) }150func lookupNarrow(x compact.ID, c Unit) string { return narrowSymbol.lookup(x, c) }151type symbolIndex struct {152	index []uint16 // position corresponds with compact index of language.153	data  []curToIndex154}155var (156	normalSymbol = symbolIndex{normalLangIndex, normalSymIndex}157	narrowSymbol = symbolIndex{narrowLangIndex, narrowSymIndex}158)159func (x *symbolIndex) lookup(lang compact.ID, c Unit) string {160	for {161		index := x.data[x.index[lang]:x.index[lang+1]]...

format

Using AI Code Generation

1import "fmt"2func main() {3}4import "fmt"5func main() {6    fmt.Printf("Hello, %s7}8import "fmt"9func main() {10    fmt.Printf("%v11}12import "fmt"13func main() {14    fmt.Printf("%d15}16import "fmt"17func main() {18    fmt.Printf("%f19}20import "fmt"21func main() {22    fmt.Printf("%t23}24import "fmt"25func main() {26    fmt.Printf("%s27}28import "fmt"29func main() {30    fmt.Printf("%q31}32import "fmt"33func main() {34    fmt.Printf("%x35}36import "fmt"37func main() {38    fmt.Printf("%p39}40import "fmt"41func main() {42    fmt.Printf("|%6d|%6d|43}44import "fmt"45func main() {46    fmt.Printf("|%6.2f|%6.2f|47}

format

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, World!")4}5import "fmt"6func main() {7    fmt.Println("Hello, World!")8    fmt.Println("Hello, World!")9}10import "fmt"11func main() {12    fmt.Println("Hello, World!")13    fmt.Println("Hello, World!")14    fmt.Println("Hello, World!")15}16import "fmt"17func main() {18    fmt.Println("Hello, World!")19    fmt.Println("Hello, World!")20    fmt.Println("Hello, World!")21    fmt.Println("Hello, World!")22}23import "fmt"24func main() {25    fmt.Println("Hello, World!")26    fmt.Println("Hello, World!")27    fmt.Println("Hello, World!")28    fmt.Println("Hello, World!")29    fmt.Println("Hello, World!")30}31import "fmt"32func main() {33    fmt.Println("H

format

Using AI Code Generation

1import "fmt"2func main() {3}4import "fmt"5func main() {6    fmt.Println("Hello, world.")7}8import "fmt"9func main() {10}11import "fmt"12func main() {13}14import "fmt"15func main() {16    fmt.Println("Hello, world.")17}18import "fmt"19func main() {20    fmt.Println("Hello, world.")21}22import "fmt"23func main() {24    fmt.Println("Hello, world.")25}26import "fmt"27func main() {28    fmt.Println("Hello, world.")29}30import "fmt"31func main() {32    fmt.Println("Hello, world.")33}34import "fmt"35func main() {36    fmt.Println("Hello, world.")37}38import "fmt"39func main() {40    fmt.Println("Hello, world.")41}42import "fmt"43func main() {44    fmt.Println("Hello, world.")45}46import "fmt"47func main() {48    fmt.Println("Hello, world.")49}

format

Using AI Code Generation

1import (2func main() {3	fmt.Printf("Now you have %g problems.", math.Sqrt(7))4}5import (6func main() {7	fmt.Println(math.Pi)8}9import (10func main() {11	fmt.Println("Now you have %g problems.", math.Sqrt(7))12}13import (14func main() {15	fmt.Println("Now you have %g problems.", math.Sqrt(7))16}17import (18func main() {19	fmt.Printf("Now you have %g problems.", math.Sqrt(7))20}21import (22func main() {23	fmt.Printf("Now you have %g problems.", math.Sqrt(7))24}25import (26func main() {27	fmt.Printf("Now you have %g problems.", math.Sqrt(7))28}29import (30func main() {31	fmt.Printf("Now you have %g problems.", math.Sqrt(7))32}33import (34func main() {35	fmt.Printf("Now you have %g problems.", math.Sqrt(7))36}37import (38func main() {39	fmt.Printf("Now you have %g problems.", math.Sqrt(7))40}41import (42func main() {

format

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, World!")4}5import "fmt"6func main() {7    fmt.Println("Hello, World!")8}9import "fmt"10func main() {11    fmt.Println("Hello, World!")12}13import "fmt"14func main() {15    fmt.Println("Hello, World!")16}17import "fmt"18func main() {19    fmt.Println("Hello, World!")20}21import "fmt"22func main() {23    fmt.Println("Hello, World!")24}25import "fmt"26func main() {27    fmt.Println("Hello, World!")28}29import "fmt"30func main() {31    fmt.Println("Hello, World!")32}33import "fmt"34func main() {35    fmt.Println("Hello, World!")36}37import "fmt"38func main() {39    fmt.Println("Hello, World!")40}41import "fmt"42func main() {43    fmt.Println("Hello, World!")44}45import "fmt"46func main() {47    fmt.Println("Hello, World!")48}49import "fmt"50func main() {51    fmt.Println("Hello, World!")52}53import "fmt"54func main() {55    fmt.Println("Hello, World!")56}57import "fmt"58func main() {59    fmt.Println("Hello, World!")60}

format

Using AI Code Generation

1import "fmt"2func main(){3    fmt.Println("Hello, World!")4}5import "fmt"6func main(){7    fmt.Printf("Hello, World!")8}9import "fmt"10func main(){11    fmt.Print("Hello, World!")12}13import "fmt"14func main(){15    fmt.Println("Hello, World!")16}17import "fmt"18func main(){19    fmt.Printfln("Hello, World!")20}21import "fmt"22func main(){23    fmt.Printlnf("Hello, World!")24}25import "fmt"26func main(){27    fmt.Printfln("Hello, World!")28}29import "fmt"30func main(){31    fmt.Printlnf("Hello, World!")32}33import "fmt"34func main(){35    fmt.Printfln("Hello, World!")36}37import "fmt"38func main(){39    fmt.Printlnf("Hello, World!")40}41import "fmt"42func main(){43    fmt.Printfln("Hello, World!")44}45import "fmt"46func main(){47    fmt.Printlnf("Hello, World!")48}49import "fmt"50func main(){51    fmt.Printfln("Hello, World!")52}53import "fmt"54func main(){55    fmt.Printlnf("Hello, World!")56}

format

Using AI Code Generation

1import "fmt"2func main(){3    fmt.Println("Hello World")4    fmt.Println("Hello World")5}6import "fmt"7func main(){8    fmt.Printf("Hello World")9    fmt.Printf("Hello World")10}11import "fmt"12func main(){13    fmt.Printf("Hello World14    fmt.Printf("Hello World15}16import "fmt"17func main(){18    fmt.Printf("Hello World19    fmt.Printf("Hello World20    fmt.Printf("Hello World21}22import "fmt"23func main(){24    fmt.Printf("Hello World25    fmt.Printf("Hello World26    fmt.Printf("Hello World27    fmt.Printf("Hello World28}29import "fmt"30func main(){31    fmt.Printf("Hello World32    fmt.Printf("Hello World33    fmt.Printf("Hello World34    fmt.Printf("Hello World35    fmt.Printf("Hello World36}37import "fmt"

format

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Hello, World!")4}5fmt.Printf("format", value)6import "fmt"7func main() {8    fmt.Printf("Hello, World!")9}10fmt.Print("format", value)11import "fmt"12func main() {13    fmt.Print("Hello, World!")14}15fmt.Println("format", value)16import "fmt"17func main() {18    fmt.Println("Hello, World!")19}20fmt.Sprintf("format", value)21import "fmt"22func main() {23    fmt.Sprintf("Hello, World!")24}

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