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readme changes, other default font, go-bindata for default font, little commenting

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probandula
2016-10-24 17:25:16 +02:00
parent bc879344e8
commit edfcb18a11
14 changed files with 2537 additions and 826 deletions
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.gitignore
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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
tags
*.test
LICENSE
+1 -1
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@@ -1,6 +1,6 @@
The MIT License (MIT) The MIT License (MIT)
Copyright (c) 2014 getwe Copyright (c) 2014 getwe, 2016 probandula
Permission is hereby granted, free of charge, to any person obtaining a copy of 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 this software and associated documentation files (the "Software"), to deal in
README.md
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# figlet4go # FIGlet for Go
_______ __ _______ __ _______ .___________. _ _ _______ ______
| ____|| | / _____|| | | ____|| || || | / _____| / __ \
| |__ | | | | __ | | | |__ `---| |----`| || |_ | | __ | | | |
| __| | | | | |_ | | | | __| | | |__ _| | | |_ | | | | |
| | | | | |__| | | `----.| |____ | | | | | |__| | | `--' |
|__| |__| \______| |_______||_______| |__| |_| \______| \______/
A port of [figlet](http://www.figlet.org/) to golang. **Currently in Development.
Make it easier to use,add some new feature such as colorized outputs. Sould work but will be improved (add demos, better font adding, maybe better performance, more default fonts)**
A port of [figlet](http://www.figlet.org/) to golang and fork of [getwe/figlet4go](https://github.com/getwe/figlet4go).
![screenshot](./screenshot/figlet4go.png)
## Installation
```
go get -u github.com/probandula/figlet4go
```
## Usage ## Usage
```go
// Create the renderer
ascii := figlet4go.NewAsciiRender()
// Optional: Add color to the letters (https://github.com/fatih/color needed)
### Install // Render and print the string
renderStr, _ := ascii.Render("Hello World")
``` fmt.Print(renderStr)
go get -u github.com/getwe/figlet4go
``` ```
### Demo ## Default font
The default font is built into the `bindata.go` file with the tool [go-bindata](https://github.com/jteeuwen/go-bindata).
The bash script for building the default font is stored in `tools/` (`go-bindata` must be installed).
``` ## Use the demo
cd demo/ There are [demo](https://github.com/probandula/figlet4go/blob/master/demo) programs for trying out the library.
go build To run them, `cd` into the `demo/` directory and run `go run [filename]` on any program you want to run.
./demo -str="golang"
#Maybe you have to `brew install figlet` if you need 3D fond in mac osx.
```
see details in `demo/demo.go` .
![screenshot](./screenshot/demo1.jpg)
assets/standard.flf
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bindata.go
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buildinfont.go
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package figlet4go
// Build in source font from starwars.flf
const builtInFont = `flf2a$ 7 6 22 15 4
starwars.flf by Ryan Youck (youck@cs.uregina.ca) Dec 25/1994
I am not responsible for use of this font
Based on Big.flf by Glenn Chappell
$ $@
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V V @
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|_ __/ $@
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demo/colored.go
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package main
demo/default.go
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// Print a simple string with the 'standard' figlet font
package main
import (
"fmt"
"github.com/probandula/figlet4go"
)
// String to be printed
const str string = "Default"
func main() {
// Create the renderer
ascii := figlet4go.NewAsciiRender()
// Render the string
renderStr, _ := ascii.Render(str)
// Print the string
fmt.Print(renderStr)
}
demo/demo.go
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package main
import (
"flag"
"fmt"
"github.com/fatih/color"
"github.com/getwe/figlet4go"
)
var flag_str = flag.String("str", "golang", "input string")
func main() {
flag.Parse()
str := *flag_str
ascii := figlet4go.NewAsciiRender()
// most simple Usage
renderStr, _ := ascii.Render(str)
fmt.Println(renderStr)
// change the font color
colors := [...]color.Attribute{
color.FgMagenta,
color.FgYellow,
color.FgBlue,
color.FgCyan,
color.FgRed,
color.FgWhite,
}
options := figlet4go.NewRenderOptions()
options.FontColor = make([]color.Attribute, len(str))
for i := range options.FontColor {
options.FontColor[i] = colors[i%len(colors)]
}
renderStr, _ = ascii.RenderOpts(str, options)
fmt.Println(renderStr)
// change the font
options.FontName = "larry3d"
// except the default font,others need to be load from disk
// here is the font :
// ftp://ftp.figlet.org/pub/figlet/fonts/contributed.tar.gz
// ftp://ftp.figlet.org/pub/figlet/fonts/international.tar.gz
// download and extract to the disk,then specify the file path to load
ascii.LoadFont("/usr/local/Cellar/figlet/2.2.5/share/figlet/fonts/")
renderStr, _ = ascii.RenderOpts(str, options)
fmt.Println(renderStr)
}
demo/otherfont.go
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package main
func main() {
}
font.go
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@@ -9,20 +9,22 @@ import (
"strings" "strings"
) )
// Represents a single font
type font struct { type font struct {
hardblank string hardblank string
height int height int
fontSlice []string fontSlice []string
} }
// Holds the fonts
type fontManager struct { type fontManager struct {
// font library // Font libraries
fontLib map[string]*font fontLib map[string]*font
// Font name to path
// font name to path
fontList map[string]string fontList map[string]string
} }
// Create new fontmanager
func newFontManager() *fontManager { func newFontManager() *fontManager {
this := &fontManager{} this := &fontManager{}
@@ -33,7 +35,7 @@ func newFontManager() *fontManager {
return this return this
} }
// walk through the path, load all the *.flf font file // Load all font *.flf files in the fontPath recursivly
func (this *fontManager) loadFont(fontPath string) error { func (this *fontManager) loadFont(fontPath string) error {
return filepath.Walk(fontPath, func(path string, info os.FileInfo, err error) error { return filepath.Walk(fontPath, func(path string, info os.FileInfo, err error) error {
@@ -51,8 +53,14 @@ func (this *fontManager) loadFont(fontPath string) error {
}) })
} }
// Load the default font
func (this *fontManager) loadBuildInFont() error { func (this *fontManager) loadBuildInFont() error {
font, err := this.parseFontContent(builtInFont) fontStr, err := Asset("standard.flf")
if err != nil {
panic(err)
}
font, err := this.parseFontContent(string(fontStr))
if err != nil { if err != nil {
return err return err
} }
@@ -60,6 +68,7 @@ func (this *fontManager) loadBuildInFont() error {
return nil return nil
} }
// Load a font from disk
func (this *fontManager) loadDiskFont(fontName string) error { func (this *fontManager) loadDiskFont(fontName string) error {
fontFilePath, ok := this.fontList[fontName] fontFilePath, ok := this.fontList[fontName]
@@ -82,6 +91,7 @@ func (this *fontManager) loadDiskFont(fontName string) error {
return nil return nil
} }
// Parse a font from a content string
func (this *fontManager) parseFontContent(cont string) (*font, error) { func (this *fontManager) parseFontContent(cont string) (*font, error) {
lines := strings.Split(cont, "\n") lines := strings.Split(cont, "\n")
if len(lines) < 1 { if len(lines) < 1 {
@@ -113,6 +123,7 @@ func (this *fontManager) parseFontContent(cont string) (*font, error) {
return font, nil return font, nil
} }
// Get a font by name
func (this *fontManager) getFont(fontName string) (*font, error) { func (this *fontManager) getFont(fontName string) (*font, error) {
font, ok := this.fontLib[fontName] font, ok := this.fontLib[fontName]
if !ok { if !ok {
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tools/build-default-font.sh
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#!/usr/bin/env bash
# Build the bindata.go file with the default font in it
cd ../assets
go-bindata -o ../bindata.go -pkg figlet4go ./