How to use style method of formatter Package

...23}24type Formatter struct {25	ColorMode                ColorMode26	colors                   map[string]string27	styleRe                  *regexp.Regexp28	preserveColorStylingTags bool29}30func NewWithNoColorBool(noColor bool) Formatter {31	if noColor {32		return New(ColorModeNone)33	}34	return New(ColorModeTerminal)35}36func New(colorMode ColorMode) Formatter {37	f := Formatter{38		ColorMode: colorMode,39		colors: map[string]string{40			"/":         "\x1b[0m",41			"bold":      "\x1b[1m",42			"underline": "\x1b[4m",43			"red":          "\x1b[38;5;9m",44			"orange":       "\x1b[38;5;214m",45			"coral":        "\x1b[38;5;204m",46			"magenta":      "\x1b[38;5;13m",47			"green":        "\x1b[38;5;10m",48			"dark-green":   "\x1b[38;5;28m",49			"yellow":       "\x1b[38;5;11m",50			"light-yellow": "\x1b[38;5;228m",51			"cyan":         "\x1b[38;5;14m",52			"gray":         "\x1b[38;5;243m",53			"light-gray":   "\x1b[38;5;246m",54			"blue":         "\x1b[38;5;12m",55		},56	}57	colors := []string{}58	for color := range f.colors {59		colors = append(colors, color)60	}61	f.styleRe = regexp.MustCompile("{{(" + strings.Join(colors, "|") + ")}}")62	return f63}64func (f Formatter) F(format string, args ...interface{}) string {65	return f.Fi(0, format, args...)66}67func (f Formatter) Fi(indentation uint, format string, args ...interface{}) string {68	return f.Fiw(indentation, 0, format, args...)69}70func (f Formatter) Fiw(indentation uint, maxWidth uint, format string, args ...interface{}) string {71	out := fmt.Sprintf(f.style(format), args...)72	if indentation == 0 && maxWidth == 0 {73		return out74	}75	lines := strings.Split(out, "\n")76	if maxWidth != 0 {77		outLines := []string{}78		maxWidth = maxWidth - indentation*279		for _, line := range lines {80			if f.length(line) <= maxWidth {81				outLines = append(outLines, line)82				continue83			}84			outWords := []string{}85			length := uint(0)86			words := strings.Split(line, " ")87			for _, word := range words {88				wordLength := f.length(word)89				if length+wordLength <= maxWidth {90					length += wordLength91					outWords = append(outWords, word)92					continue93				}94				outLines = append(outLines, strings.Join(outWords, " "))95				outWords = []string{word}96				length = wordLength97			}98			if len(outWords) > 0 {99				outLines = append(outLines, strings.Join(outWords, " "))100			}101		}102		lines = outLines103	}104	if indentation == 0 {105		return strings.Join(lines, "\n")106	}107	padding := strings.Repeat("  ", int(indentation))108	for i := range lines {109		if lines[i] != "" {110			lines[i] = padding + lines[i]111		}112	}113	return strings.Join(lines, "\n")114}115func (f Formatter) length(styled string) uint {116	n := uint(0)117	inStyle := false118	for _, b := range styled {119		if inStyle {120			if b == 'm' {121				inStyle = false122			}123			continue124		}125		if b == '\x1b' {126			inStyle = true127			continue128		}129		n += 1130	}131	return n132}133func (f Formatter) CycleJoin(elements []string, joiner string, cycle []string) string {134	if len(elements) == 0 {135		return ""136	}137	n := len(cycle)138	out := ""139	for i, text := range elements {140		out += cycle[i%n] + text141		if i < len(elements)-1 {142			out += joiner143		}144	}145	out += "{{/}}"146	return f.style(out)147}148func (f Formatter) style(s string) string {149	switch f.ColorMode {150	case ColorModeNone:151		return f.styleRe.ReplaceAllString(s, "")152	case ColorModePassthrough:153		return s154	case ColorModeTerminal:155		return f.styleRe.ReplaceAllStringFunc(s, func(match string) string {156			if out, ok := f.colors[strings.Trim(match, "{}")]; ok {157				return out158			}159			return match160		})161	}162	return ""163}...

1package formatters2import (3	"github.com/sirupsen/logrus"4	prefixed "github.com/x-cray/logrus-prefixed-formatter"5)6// Global formatters7var (8	LogFile  = NewFileFormatter()9	Terminal = NewTerminalFormatter()10)11// NewFileFormatter returns a new Formatter instance for log file.12func NewFileFormatter() logrus.Formatter {13	return &prefixed.TextFormatter{14		FullTimestamp:   true,15		TimestampFormat: "Jan 02 15:04:05.000",16		DisableColors:   true,17		ForceFormatting: true,18	}19}20// NewTerminalFormatter returns a new Formatter instance for terminal.21func NewTerminalFormatter() logrus.Formatter {22	formatter := &prefixed.TextFormatter{23		FullTimestamp:   true,24		TimestampFormat: "Jan 02 15:04:05.000",25		ForceFormatting: true,26	}27	formatter.SetColorScheme(&prefixed.ColorScheme{28		InfoLevelStyle:  "green",29		WarnLevelStyle:  "yellow",30		ErrorLevelStyle: "red",31		FatalLevelStyle: "red",32		PanicLevelStyle: "red",33		DebugLevelStyle: "blue+h",34		PrefixStyle:     "cyan",35		TimestampStyle:  "black+h",36	})37	return formatter38}...

1import (2func main() {3    fmt.Println("Hello, World!")4    fmt.Println(os.Getenv("GOPATH"))5}6import (7func main() {8    f, err = os.OpenFile("test.txt", os.O_WRONLY|os.O_CREATE, 0666)9    if err != nil {10        fmt.Println(err)11    }12    defer f.Close()13    n, err := f.Write([]byte("Hello, World!"))14    if err != nil {15        fmt.Println(n, err)16    }17}

1import "fmt"2func main() {3    fmt.Printf("Hello, %s4}5import "fmt"6func main() {7    fmt.Printf("%s8}9import "fmt"10func main() {11    fmt.Printf("%q12}13import "fmt"14func main() {15    fmt.Printf("%x16}17import "fmt"18func main() {19    fmt.Printf("%X20}21import "fmt"22func main() {23    fmt.Printf("%U24}25import "fmt"26func main() {27    fmt.Printf("%v28}

1import java.text.*;2public class 1 {3public static void main(String[] args) {4String s = "Hello";5StringBuffer sb = new StringBuffer(s);6System.out.println("StringBuffer = " + sb);7System.out.println("StringBuffer = " + sb.reverse());8}9}10Java StringBuffer insert() method11public StringBuffer insert(int index, String str)12import java.text.*;13public class 1 {14public static void main(String[] args) {15String s = "Hello";16StringBuffer sb = new StringBuffer(s);17System.out.println("StringBuffer = " + sb);18System.out.println("StringBuffer = " + sb.insert(1, "Java"));19}20}21Java StringBuffer delete() method22public StringBuffer delete(int start, int end)23import java.text.*;24public class 1 {25public static void main(String[] args) {26String s = "Hello";27StringBuffer sb = new StringBuffer(s);28System.out.println("StringBuffer = " + sb);29System.out.println("StringBuffer = " + sb.delete(1, 3));30}31}

1import "fmt"2func main() {3    fmt.Printf("Hello, %s4}5import "fmt"6func main() {7    fmt.Printf("Hello, %d8}9import "fmt"10func main() {11    fmt.Printf("Hello, %f12}13import "fmt"14func main() {15    fmt.Printf("Hello, %t16}17import "fmt"18func main() {19    fmt.Printf("Hello, %c20}21The Println() and Printf() functions are used to print the output to the console. Printf() is used to print the