Easy column-formatted output for golang. Fork of ryanuber/columnize but more performant and has simpler API.

Columnize is a really small Go package that makes building CLI's a little bit easier. In some CLI designs, you want to output a number similar items in a human-readable way with nicely aligned columns. However, figuring out how wide to make each column is a boring problem to solve and eats your valuable time.

Here is an example:

package main

import (
    "fmt"
    "github.com/rprtr258/columnize"
)

func main() {
    output := [][]string{
        {"Bob", "Male", "38"},
        {"Sally", "Female", "26"},
    }
    fmt.Println(columnize.Columnize(output, columnize.WithHeaders("Name", "Gender", "Age")))
}

As you can see, you just pass in a list of strings. And the result:

Name   Gender  Age
Bob    Male    38
Sally  Female  26

Columnize is tolerant of missing or empty fields, or even empty lines, so passing in extra lines for spacing should show up as you would expect.