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422 lines
11 KiB
422 lines
11 KiB
6 years ago
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[](https://travis-ci.com/common-nighthawk/go-figure)
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# Go Figure
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## Description
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Go Figure prints beautiful ASCII art from text.
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It supports [FIGlet](http://www.figlet.org/) files,
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and most of its features.
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This package was inspired by the Ruby gem [artii](https://github.com/miketierney/artii),
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but built from scratch and with a different feature set.
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## Installation
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`go get github.com/common-nighthawk/go-figure`
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## Basic Example
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```go
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package main
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import("github.com/common-nighthawk/go-figure")
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func main() {
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myFigure := figure.NewFigure("Hello World", "", true)
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myFigure.Print()
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}
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```
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```txt
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_ _ _ _ __ __ _ _
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| | | | ___ | | | | ___ \ \ / / ___ _ __ | | __| |
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| |_| | / _ \ | | | | / _ \ \ \ /\ / / / _ \ | '__| | | / _` |
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| _ | | __/ | | | | | (_) | \ V V / | (_) | | | | | | (_| |
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|_| |_| \___| |_| |_| \___/ \_/\_/ \___/ |_| |_| \__,_|
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```
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## Documentation
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### Create a Figure
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There are two ways to create a Figure, with
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the method `func NewFigure` and
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the method `func NewFigureWithFont`.
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Each constructor takes three arguments: the text, font, and strict mode.
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The difference between the two methods is the font.
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The method signature are:
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```
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func NewFigure(phrase, fontName string, strict bool) figure
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func NewFigureWithFont(phrase string, reader io.Reader, strict bool) figure
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```
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`NewFigure` requires only the name of the font,
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and attempts to locate the font file on your machine.
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If passed an empty string for the font name, a default is provided.
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That is, these are both valid--
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`myFigure := figure.NewFigure("Foo Bar", "", true)`
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`myFigure := figure.NewFigure("Foo Bar", "alphabet", true)`
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Please note that font names are case sensitive.
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Because of the separation between the executable (binary)
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Go creates and the source code, this lookup sometimes fails
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(*glaces at Windows*).
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Therefore, `NewFigureWithFont` accepts the font file directly.
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Provide the absolute path to the flf.
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You can point to the file the comes with this project
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or you can store the file anywhere you'd like and use that location.
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The font files are available in the [fonts folder](https://github.com/common-nighthawk/go-figure/tree/master/fonts)
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and on [figlet.org](http://www.figlet.org/fontdb.cgi).
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Here are two examples--
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`myFigure := figure.NewFigureWithFont("Foo Bar", "/home/ubuntu/go/src/github.com/common-nighthawk/go-figure/fonts/alphabet.flf", true)`
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`myFigure := figure.NewFigureWithFont("Foo Bar", "/home/lib/fonts/alaphabet.flf", true)`
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Strict mode dictates how to handle characters outside of standard ASCII.
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When set to true, a non-ASCII character (outside character codes 32-127)
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will cause the program to panic.
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When set to false, these characters are replaced with a question mark ('?').
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Examples of each--
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`figure.NewFigure("Foo 👍 Bar", "alphabet", true).Print()`
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```txt
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2016/12/01 19:35:38 invalid input.
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```
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`figure.NewFigure("Foo 👍 Bar", "alphabet", false).Print()`
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```txt
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_____ ___ ____
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| ___| ___ ___ |__ \ | __ ) __ _ _ __
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| |_ / _ \ / _ \ / / | _ \ / _` | | '__|
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| _| | (_) | | (_) | |_| | |_) | | (_| | | |
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|_| \___/ \___/ (_) |____/ \__,_| |_|
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```
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### Methods: stdout
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#### Print()
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The most basic, and common, method is func Print.
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A figure responds to Print(), and will write the output to the terminal.
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There is no return value.
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`myFigure.Print()`
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But if you're feeling adventurous,
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explore the methods below.
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#### Blink(duration, timeOn, timeOff int)
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A figure responds to the func Blink, taking three arguments.
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`duration` is the total time the banner will display, in milliseconds.
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`timeOn` is the length of time the text will blink on (also in ms).
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`timeOff` is the length of time the text will blink off (ms).
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For an even blink, set `timeOff` to -1
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(same as setting `timeOff` to the value of `timeOn`).
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There is no return value.
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`myFigure.Blink(5000, 1000, 500)`
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`myFigure.Blink(5000, 1000, -1)`
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#### Scroll(duration, stillness int, direction string)
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A figure responds to the func Scroll, taking three arguments.
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`duration` is the total time the banner will display, in milliseconds.
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`stillness` is the length of time the text will not move (also in ms).
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Therefore, the lower the stillness the faster the scroll speed.
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`direction` can be either "right" or "left" (case insensitive).
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The direction will be left if an invalid option (e.g. "foo") is passed.
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There is no return value.
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`myFigure.Scroll(5000, 200, "right")`
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`myFigure.Scroll(5000, 100, "left")`
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#### Dance(duration, freeze int)
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A figure responds to the func Dance, taking two arguments.
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`duration` is the total time the banner will display, in milliseconds.
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`freeze` is the length of time between dance moves (also in ms).
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Therefore, the lower the freeze the faster the dancing.
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There is no return value.
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`myFigure.Dance(5000, 800)`
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### Methods: Writers
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#### Write(w io.Writer, fig figure)
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Unlike the above methods that operate on a figure value,
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func Write is a function that takes two arguments.
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`w` is a value that implements all the methods in the io.Writer interface.
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`fig` is the figure that will be written.
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`figure.Write(w, myFigure)`
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This method would be useful, for example, to add a nifty banner to a web page--
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```go
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func landingPage(w http.ResponseWriter, r *http.Request) {
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figure.Write(w, myFigure)
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}
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```
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### Methods: Misc
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#### Slicify() ([]string)
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If you want to do something outside of the created methods,
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you can grab the internal slice.
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This gives you a good start to build anything
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with the ASCII art, if manually.
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A figure responds to the func Slicify,
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and will return the slice of strings.
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`myFigure.Slicify()`
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returns
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```txt
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["FFFF BBBB ",
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"F B B ",
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"FFF ooo ooo BBBB aa rrr",
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"F o o o o B B a a r ",
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"F ooo ooo BBBB aaa r "]
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```
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## More Examples
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`figure.NewFigure("Go-Figure", "isometric1", true).Print()`
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```
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___ ___ ___ ___ ___ ___ ___
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/\ \ /\ \ /\ \ ___ /\ \ /\__\ /\ \ /\ \
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/::\ \ /::\ \ /::\ \ /\ \ /::\ \ /:/ / /::\ \ /::\ \
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/:/\:\ \ /:/\:\ \ /:/\:\ \ \:\ \ /:/\:\ \ /:/ / /:/\:\ \ /:/\:\ \
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/:/ \:\ \ /:/ \:\ \ /::\~\:\ \ /::\__\ /:/ \:\ \ /:/ / ___ /::\~\:\ \ /::\~\:\ \
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/:/__/_\:\__\ /:/__/ \:\__\ /:/\:\ \:\__\ __/:/\/__/ /:/__/_\:\__\ /:/__/ /\__\ /:/\:\ \:\__\ /:/\:\ \:\__\
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\:\ /\ \/__/ \:\ \ /:/ / \/__\:\ \/__/ /\/:/ / \:\ /\ \/__/ \:\ \ /:/ / \/_|::\/:/ / \:\~\:\ \/__/
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\:\ \:\__\ \:\ /:/ / \:\__\ \::/__/ \:\ \:\__\ \:\ /:/ / |:|::/ / \:\ \:\__\
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\:\/:/ / \:\/:/ / \/__/ \:\__\ \:\/:/ / \:\/:/ / |:|\/__/ \:\ \/__/
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\::/ / \::/ / \/__/ \::/ / \::/ / |:| | \:\__\
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\/__/ \/__/ \/__/ \/__/ \|__| \/__/
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```
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`figure.NewFigure("Foo Bar Pop", "smkeyboard", true).Print()`
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```
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____ ____ ____ ____ ____ ____ ____ ____ ____
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||F ||||o ||||o ||||B ||||a ||||r ||||P ||||o ||||p ||
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||__||||__||||__||||__||||__||||__||||__||||__||||__||
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|/__\||/__\||/__\||/__\||/__\||/__\||/__\||/__\||/__\|
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```
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`figure.NewFigure("Keep Your Eyes On Me", "rectangles", true).Print()`
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```
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_____ __ __ _____ _____ _____
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| | | ___ ___ ___ | | | ___ _ _ ___ | __| _ _ ___ ___ | | ___ | | ___
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| -|| -_|| -_|| . ||_ _|| . || | || _|| __|| | || -_||_ -|| | || || | | || -_|
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|__|__||___||___|| _| |_| |___||___||_| |_____||_ ||___||___||_____||_|_||_|_|_||___|
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|_| |___|
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```
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`figure.NewFigure("ABCDEFGHIJ", "eftichess", true).Print()`
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```
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######### ######### ___ ######### #########
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##[`'`']# \`~'/ ##'\v/`## /\*/\ ##|`+'|## '\v/` ##\`~'/## [`'`'] '\v/` \`~'/
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###| |## (o o) ##(o 0)## /(o o)\ ##(o o)## (o 0) ##(o o)## | | (o 0) (o o)
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###|__|## \ / \ ###(_)### (_) ###(_)### (_) ###\ / \# |__| (_) \ / \
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######### " ######### ######### ####"#### "
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```
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`figure.NewFigure("Give your reasons", "doom", true).Blink(10000, 500, -1)`
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`figure.NewFigure("I mean, I could...", "basic", true).Scroll(10000, 200, "right")`
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`figure.NewFigure("But why would I want to?", "basic", true).Scroll(10000, 200, "left")`
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`figure.NewFigure("It's been waiting for you", "larry3d", true).Dance(10000, 500)`
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`figure.Write(w, figure.NewFigure("Hello, It's Me", "puffy", true))`
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## Supported Fonts
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* 3-d
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* 3x5
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* 5lineoblique
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* acrobatic
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* alligator
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* alligator2
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* alphabet
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* avatar
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* banner
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* banner3-D
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* banner3
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* banner4
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* barbwire
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* basic
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* bell
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* big
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* bigchief
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* binary
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* block
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* bubble
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* bulbhead
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* calgphy2
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* caligraphy
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* catwalk
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* chunky
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* coinstak
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* colossal
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* computer
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* contessa
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* contrast
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* cosmic
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* cosmike
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* cricket
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* cursive
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* cyberlarge
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* cybermedium
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* cybersmall
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* diamond
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* digital
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* doh
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* doom
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* dotmatrix
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* drpepper
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* eftichess
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* eftifont
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* eftipiti
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* eftirobot
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* eftitalic
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* eftiwall
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* eftiwater
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* epic
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* fender
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* fourtops
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* fuzzy
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* goofy
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* gothic
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* graffiti
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* hollywood
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* invita
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* isometric1
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* isometric2
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* isometric3
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* isometric4
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* italic
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* ivrit
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* jazmine
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* jerusalem
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* katakana
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* kban
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* larry3d
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* lcd
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* lean
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* letters
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* linux
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* lockergnome
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* madrid
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* marquee
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* maxfour
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* mike
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* mini
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* mirror
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* mnemonic
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* morse
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* moscow
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* nancyj-fancy
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* nancyj-underlined
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* nancyj
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* nipples
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* ntgreek
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* o8
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* ogre
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* pawp
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* peaks
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* pebbles
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* pepper
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* poison
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* puffy
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* pyramid
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* rectangles
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* relief
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* relief2
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* rev
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* roman
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* rot13
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* rounded
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* rowancap
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* rozzo
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* runic
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* runyc
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* sblood
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* script
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* serifcap
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* shadow
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* short
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* slant
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* slide
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* slscript
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* small
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* smisome1
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* smkeyboard
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* smscript
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* smshadow
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* smslant
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* smtengwar
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* 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](https://twitter.com/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)
|