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README

Simple tables in terminal with Go

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This package allows to generate and display ascii tables in the terminal, f.e.:

+----+------------------+--------------+-----------------------------+------+
| #  |       NAME       |    PHONE     |            EMAIL            | QTTY |
+----+------------------+--------------+-----------------------------+------+
|  1 | Newton G. Goetz  | 252-585-5166 | NewtonGGoetz@dayrep.com     |   10 |
|  2 | Rebecca R. Edney | 865-475-4171 | RebeccaREdney@armyspy.com   |   12 |
|  3 | John R. Jackson  | 810-325-1417 | JohnRJackson@armyspy.com    |   15 |
|  4 | Ron J. Gomes     | 217-450-8568 | RonJGomes@rhyta.com         |   25 |
|  5 | Penny R. Lewis   | 870-794-1666 | PennyRLewis@rhyta.com       |    5 |
|  6 | Sofia J. Smith   | 770-333-7379 | SofiaJSmith@armyspy.com     |    3 |
|  7 | Karlene D. Owen  | 231-242-4157 | KarleneDOwen@jourrapide.com |   12 |
|  8 | Daniel L. Love   | 978-210-4178 | DanielLLove@rhyta.com       |   44 |
|  9 | Julie T. Dial    | 719-966-5354 | JulieTDial@jourrapide.com   |    8 |
| 10 | Juan J. Kennedy  | 908-910-8893 | JuanJKennedy@dayrep.com     |   16 |
+----+------------------+--------------+-----------------------------+------+
|                                                           Subtotal |  150 |
+----+------------------+--------------+-----------------------------+------+

There are the following key features:

  • Declarative style. Have to write more code, and hell with it.
  • Styling. With 6 predefined styles: MySql-like (default), compact, compact lite, markdown, rounded and unicode. And you can change it.
  • Header and footer. Separated from table body.
  • Multiline cells support. See _example/main.go/_example/04-multiline/main.go for example.
  • Cell content alignment. Left, right or center.
  • Row spanning. By analogy with the way it is done in HTML. See Cell.Span attribute description.
  • Fast! Really fast, see _example/main.go/_example/03-benchmarks-with-others.

Installation

$ go get -u github.com/alexeyco/simpletable

To run unit tests:

$ cd $GOPATH/src/github.com/alexeyco/simpletable
$ go test -cover

To run benchmarks:

$ cd $GOPATH/src/github.com/alexeyco/simpletable
$ go test -bench=.

Comparison with similar libraries see _example/main.go/_example/03-benchmarks-with-others

Basic example

package main

import (
    "fmt"

    "github.com/alexeyco/simpletable"
)

var (
    data = [][]interface{}{
        {1, "Newton G. Goetz", 532.7},
        {2, "Rebecca R. Edney", 1423.25},
        {3, "John R. Jackson", 7526.12},
        {4, "Ron J. Gomes", 123.84},
        {5, "Penny R. Lewis", 3221.11},
    }
)

func main() {
    table := simpletable.New()

    table.Header = &simpletable.Header{
        Cells: []*simpletable.Cell{
            {Align: simpletable.AlignCenter, Text: "#"},
            {Align: simpletable.AlignCenter, Text: "NAME"},
            {Align: simpletable.AlignCenter, Text: "TAX"},
        },
    }

    subtotal := float64(0)
    for _, row := range data {
        r := []*simpletable.Cell{
            {Align: simpletable.AlignRight, Text: fmt.Sprintf("%d", row[0].(int))},
            {Text: row[1].(string)},
            {Align: simpletable.AlignRight, Text: fmt.Sprintf("$ %.2f", row[2].(float64))},
        }

        table.Body.Cells = append(table.Body.Cells, r)
        subtotal += row[2].(float64)
    }

    table.Footer = &simpletable.Footer{
        Cells: []*simpletable.Cell{
            {},
            {Align: simpletable.AlignRight, Text: "Subtotal"},
            {Align: simpletable.AlignRight, Text: fmt.Sprintf("$ %.2f", subtotal)},
        },
    }

    table.SetStyle(simpletable.StyleCompactLite)
    fmt.Println(table.String())
}

Result:

 #         NAME            TAX
--- ------------------ ------------
 1   Newton G. Goetz      $ 532.70
 2   Rebecca R. Edney    $ 1423.25
 3   John R. Jackson     $ 7526.12
 4   Ron J. Gomes         $ 123.84
 5   Penny R. Lewis      $ 3221.11
--- ------------------ ------------
             Subtotal   $ 12827.02

You can see also _example/main.go/01-styles-demo/main.go for styles demonstration.

$ cd $GOPATH/src/github.com/alexeyco/simpletable/_example/01-styles-demo
$ go run main.go

More examples: For more examples see _example directory:

$ cd $GOPATH/src/github.com/alexeyco/simpletable/_example
$ ls -F | grep /

01-styles-demo/
02-ugly-span/
03-benchmarks-with-others/
04-multiline/

Styling

There is 6 styles available. To view them, run _example/main.go/01-styles-demo/main.go:

$ cd $GOPATH/src/github.com/alexeyco/simpletable/_example/01-styles-demo
$ go run main.go

Cell content alignment

You can set cell content alignment:

c := &simpletable.Cell{
    // or simpletable.AlignLeft (default), or simpletable.AlignCenter
    Align:   simpletable.AlignRight, 
    Content: "Subtotal",
}

Column spanning

By analogy with HTML:

c := &simpletable.Cell{
    Span:    2, // Default: 1
    Content: "Subtotal",
}

Note: by default Span is 1. If you try to set it to 0, the value will still be 1.

License

Copyright (c) 2017 Alexey Popov

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


*Note that all licence references and agreements mentioned in the simpletable README section above are relevant to that project's source code only.