Writer.Init in Go

Posted by GoDoc
Public (Editable by Users)

A Writer must be initialized with a call to Init. The first parameter (output) specifies the filter output. The remaining parameters control the formatting:

Go
Edit 
package main

import (
	"fmt"
	"os"
	"text/tabwriter"
)

func main() {
	w := new(tabwriter.Writer)

	// Format in tab-separated columns with a tab stop of 8.
	w.Init(os.Stdout, 0, 8, 0, '\t', 0)
	fmt.Fprintln(w, "a\tb\tc\td\t.")
	fmt.Fprintln(w, "123\t12345\t1234567\t123456789\t.")
	fmt.Fprintln(w)
	w.Flush()

	// Format right-aligned in space-separated columns of minimal width 5
	// and at least one blank of padding (so wider column entries do not
	// touch each other).
	w.Init(os.Stdout, 5, 0, 1, ' ', tabwriter.AlignRight)
	fmt.Fprintln(w, "a\tb\tc\td\t.")
	fmt.Fprintln(w, "123\t12345\t1234567\t123456789\t.")
	fmt.Fprintln(w)
	w.Flush()
}