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EasyDarwin/vendor/github.com/common-nighthawk/go-figure
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README.md

Build Status

Go Figure

Description

Go Figure prints beautiful ASCII art from text. It supports FIGlet files, and most of its features.

This package was inspired by the Ruby gem artii, but built from scratch and with a different feature set.

Installation

go get github.com/common-nighthawk/go-figure

Basic Example

package main

import("github.com/common-nighthawk/go-figure")

func main() {
  myFigure := figure.NewFigure("Hello World", "", true)
  myFigure.Print()
}

  _   _          _   _          __        __                 _       _ 
 | | | |   ___  | | | |   ___   \ \      / /   ___    _ __  | |   __| |
 | |_| |  / _ \ | | | |  / _ \   \ \ /\ / /   / _ \  | '__| | |  / _` |
 |  _  | |  __/ | | | | | (_) |   \ V  V /   | (_) | | |    | | | (_| |
 |_| |_|  \___| |_| |_|  \___/     \_/\_/     \___/  |_|    |_|  \__,_|

Documentation

Create a Figure

There are two ways to create a Figure, with the method func NewFigure and the method func NewFigureWithFont.

Each constructor takes three arguments: the text, font, and strict mode. The difference between the two methods is the font. The method signature are:

func NewFigure(phrase, fontName string, strict bool) figure
func NewFigureWithFont(phrase string, reader io.Reader, strict bool) figure

NewFigure requires only the name of the font, and attempts to locate the font file on your machine.

If passed an empty string for the font name, a default is provided. That is, these are both valid--

myFigure := figure.NewFigure("Foo Bar", "", true)

myFigure := figure.NewFigure("Foo Bar", "alphabet", true)

Please note that font names are case sensitive.

Because of the separation between the executable (binary) Go creates and the source code, this lookup sometimes fails (glaces at Windows).

Therefore, NewFigureWithFont accepts the font file directly. Provide the absolute path to the flf. You can point to the file the comes with this project or you can store the file anywhere you'd like and use that location.

The font files are available in the fonts folder and on figlet.org.

Here are two examples--

myFigure := figure.NewFigureWithFont("Foo Bar", "/home/ubuntu/go/src/github.com/common-nighthawk/go-figure/fonts/alphabet.flf", true)

myFigure := figure.NewFigureWithFont("Foo Bar", "/home/lib/fonts/alaphabet.flf", true)

Strict mode dictates how to handle characters outside of standard ASCII. When set to true, a non-ASCII character (outside character codes 32-127) will cause the program to panic. When set to false, these characters are replaced with a question mark ('?'). Examples of each--

figure.NewFigure("Foo 👍 Bar", "alphabet", true).Print()

2016/12/01 19:35:38 invalid input.

figure.NewFigure("Foo 👍 Bar", "alphabet", false).Print()

 _____                     ___     ____                 
 |  ___|   ___     ___     |__ \   | __ )    __ _   _ __ 
 | |_     / _ \   / _ \      / /   |  _ \   / _` | | '__|
 |  _|   | (_) | | (_) |    |_|    | |_) | | (_| | | |   
 |_|      \___/   \___/     (_)    |____/   \__,_| |_|

Methods: stdout

Print()

The most basic, and common, method is func Print. A figure responds to Print(), and will write the output to the terminal. There is no return value.

myFigure.Print()

But if you're feeling adventurous, explore the methods below.

Blink(duration, timeOn, timeOff int)

A figure responds to the func Blink, taking three arguments. duration is the total time the banner will display, in milliseconds. timeOn is the length of time the text will blink on (also in ms). timeOff is the length of time the text will blink off (ms). For an even blink, set timeOff to -1 (same as setting timeOff to the value of timeOn). There is no return value.

myFigure.Blink(5000, 1000, 500)

myFigure.Blink(5000, 1000, -1)

Scroll(duration, stillness int, direction string)

A figure responds to the func Scroll, taking three arguments. duration is the total time the banner will display, in milliseconds. stillness is the length of time the text will not move (also in ms). Therefore, the lower the stillness the faster the scroll speed. direction can be either "right" or "left" (case insensitive). The direction will be left if an invalid option (e.g. "foo") is passed. There is no return value.

myFigure.Scroll(5000, 200, "right")

myFigure.Scroll(5000, 100, "left")

Dance(duration, freeze int)

A figure responds to the func Dance, taking two arguments. duration is the total time the banner will display, in milliseconds. freeze is the length of time between dance moves (also in ms). Therefore, the lower the freeze the faster the dancing. There is no return value.

myFigure.Dance(5000, 800)

Methods: Writers

Write(w io.Writer, fig figure)

Unlike the above methods that operate on a figure value, func Write is a function that takes two arguments. w is a value that implements all the methods in the io.Writer interface. fig is the figure that will be written.

figure.Write(w, myFigure)

This method would be useful, for example, to add a nifty banner to a web page--

func landingPage(w http.ResponseWriter, r *http.Request) {
  figure.Write(w, myFigure)
}

Methods: Misc

Slicify() ([]string)

If you want to do something outside of the created methods, you can grab the internal slice. This gives you a good start to build anything with the ASCII art, if manually.

A figure responds to the func Slicify, and will return the slice of strings.

myFigure.Slicify()

returns

["FFFF           BBBB         ",
 "F              B   B        ",
 "FFF  ooo ooo   BBBB   aa rrr",
 "F    o o o o   B   B a a r  ",
 "F    ooo ooo   BBBB  aaa r  "]

More Examples

figure.NewFigure("Go-Figure", "isometric1", true).Print()

      ___           ___           ___                       ___           ___           ___           ___     
     /\  \         /\  \         /\  \          ___        /\  \         /\__\         /\  \         /\  \    
    /::\  \       /::\  \       /::\  \        /\  \      /::\  \       /:/  /        /::\  \       /::\  \   
   /:/\:\  \     /:/\:\  \     /:/\:\  \       \:\  \    /:/\:\  \     /:/  /        /:/\:\  \     /:/\:\  \  
  /:/  \:\  \   /:/  \:\  \   /::\~\:\  \      /::\__\  /:/  \:\  \   /:/  /  ___   /::\~\:\  \   /::\~\:\  \ 
 /:/__/_\:\__\ /:/__/ \:\__\ /:/\:\ \:\__\  __/:/\/__/ /:/__/_\:\__\ /:/__/  /\__\ /:/\:\ \:\__\ /:/\:\ \:\__\
 \:\  /\ \/__/ \:\  \ /:/  / \/__\:\ \/__/ /\/:/  /    \:\  /\ \/__/ \:\  \ /:/  / \/_|::\/:/  / \:\~\:\ \/__/
  \:\ \:\__\    \:\  /:/  /       \:\__\   \::/__/      \:\ \:\__\    \:\  /:/  /     |:|::/  /   \:\ \:\__\  
   \:\/:/  /     \:\/:/  /         \/__/    \:\__\       \:\/:/  /     \:\/:/  /      |:|\/__/     \:\ \/__/  
    \::/  /       \::/  /                    \/__/        \::/  /       \::/  /       |:|  |        \:\__\    
     \/__/         \/__/                                   \/__/         \/__/         \|__|         \/__/

figure.NewFigure("Foo Bar Pop", "smkeyboard", true).Print()

 ____  ____  ____  ____  ____  ____  ____  ____  ____ 
||F ||||o ||||o ||||B ||||a ||||r ||||P ||||o ||||p ||
||__||||__||||__||||__||||__||||__||||__||||__||||__||
|/__\||/__\||/__\||/__\||/__\||/__\||/__\||/__\||/__\|

figure.NewFigure("Keep Your Eyes On Me", "rectangles", true).Print()

                                                                                          
 _____                 __ __                 _____                 _____       _____      
|  |  | ___  ___  ___ |  |  | ___  _ _  ___ |   __| _ _  ___  ___ |     | ___ |     | ___ 
|    -|| -_|| -_|| . ||_   _|| . || | ||  _||   __|| | || -_||_ -||  |  ||   || | | || -_|
|__|__||___||___||  _|  |_|  |___||___||_|  |_____||_  ||___||___||_____||_|_||_|_|_||___|
                 |_|                               |___|

figure.NewFigure("ABCDEFGHIJ", "eftichess", true).Print()

#########         #########   ___   #########         #########                           
##[`'`']#  \`~'/  ##'\v/`##  /\*/\  ##|`+'|##  '\v/`  ##\`~'/##  [`'`']   '\v/`    \`~'/  
###|  |##  (o o)  ##(o 0)## /(o o)\ ##(o o)##  (o 0)  ##(o o)##   |  |    (o 0)    (o o)  
###|__|##   \ / \ ###(_)###   (_)   ###(_)###   (_)   ###\ / \#   |__|     (_)      \ / \ 
#########    "    #########         #########         ####"####                      "

figure.NewFigure("Give your reasons", "doom", true).Blink(10000, 500, -1)

blink

figure.NewFigure("I mean, I could...", "basic", true).Scroll(10000, 200, "right")

figure.NewFigure("But why would I want to?", "basic", true).Scroll(10000, 200, "left")

scroll

figure.NewFigure("It's been waiting for you", "larry3d", true).Dance(10000, 500)

dance

figure.Write(w, figure.NewFigure("Hello, It's Me", "puffy", true))

web

Supported Fonts

  • 3-d
  • 3x5
  • 5lineoblique
  • acrobatic
  • alligator
  • alligator2
  • alphabet
  • avatar
  • banner
  • banner3-D
  • banner3
  • banner4
  • barbwire
  • basic
  • bell
  • big
  • bigchief
  • binary
  • block
  • bubble
  • bulbhead
  • calgphy2
  • caligraphy
  • catwalk
  • chunky
  • coinstak
  • colossal
  • computer
  • contessa
  • contrast
  • cosmic
  • cosmike
  • cricket
  • cursive
  • cyberlarge
  • cybermedium
  • cybersmall
  • diamond
  • digital
  • doh
  • doom
  • dotmatrix
  • drpepper
  • eftichess
  • eftifont
  • eftipiti
  • eftirobot
  • eftitalic
  • eftiwall
  • eftiwater
  • epic
  • fender
  • fourtops
  • fuzzy
  • goofy
  • gothic
  • graffiti
  • hollywood
  • invita
  • isometric1
  • isometric2
  • isometric3
  • isometric4
  • italic
  • ivrit
  • jazmine
  • jerusalem
  • katakana
  • kban
  • larry3d
  • lcd
  • lean
  • letters
  • linux
  • lockergnome
  • madrid
  • marquee
  • maxfour
  • mike
  • mini
  • mirror
  • mnemonic
  • morse
  • moscow
  • nancyj-fancy
  • nancyj-underlined
  • nancyj
  • nipples
  • ntgreek
  • o8
  • ogre
  • pawp
  • peaks
  • pebbles
  • pepper
  • poison
  • puffy
  • pyramid
  • rectangles
  • relief
  • relief2
  • rev
  • roman
  • rot13
  • rounded
  • rowancap
  • rozzo
  • runic
  • runyc
  • sblood
  • script
  • serifcap
  • shadow
  • short
  • slant
  • slide
  • slscript
  • small
  • smisome1
  • smkeyboard
  • smscript
  • smshadow
  • smslant
  • smtengwar
  • speed
  • stampatello
  • standard
  • starwars
  • stellar
  • stop
  • straight
  • tanja
  • tengwar
  • term
  • thick
  • thin
  • threepoint
  • ticks
  • ticksslant
  • tinker-toy
  • tombstone
  • trek
  • tsalagi
  • twopoint
  • univers
  • usaflag
  • wavy
  • weird

Contributing

Because this project is small, we can dispense with formality. Submit a pull request, open an issue, request a change. All good!

Wanna Say Thanks?

GitHub stars are helpful. Most importantly, they help with discoverability. Projects with more stars are displayed higher in search results when people are looking for packages. Also--they make contributors feel good :)

If you are feeling especially generous, give a shout to @cmmn_nighthawk.

TODO

  • Add proper support for spaces
  • More animations
  • Implement graceful line-wrapping and smushing
  • Deep-copy font for Dance (current implementation is destructive)