pterm

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 Go to latest Published: Nov 3, 2020 License: MIT Imports: 12 Imported by: 1,712

README

💻 PTerm | Pretty Terminal Printer

A golang module to print pretty text

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Installation | Documentation | Examples | Q&A | Contributing

⭐ Main Features

🥅 Goal of PTerm

PTerm is designed to create a platform independent way to create beautiful terminal output. Most modules that want to improve the terminal output do not guarantee platform independence - PTerm does. PTerm follows the most common methods for displaying color in a terminal. With PTerm, it is possible to create beautiful output even in low-level environments.

• 🪀 Easy to use

Our first priority is to keep PTerm as easy to use as possible. With many examples for each individual component, getting started with PTerm is extremely easy. All components are similar in design and implement interfaces to simplify mixing individual components together.

• 🤹‍♀️ Cross-Platform

We take special precautions to ensure that PTerm works on as many operating systems and terminals as possible. Whether it's Windows CMD, macOS iTerm2 or in the backend (for example inside a GitHub Action or other CI systems), PTerm guarantees beautiful output!

PTerm is actively tested on Windows, Linux (Debian & Ubuntu) and macOS.

• 🧪 Well tested

PTerm has a 100% test coverage, which means that every line of code inside PTerm gets tested automatically

We test PTerm continuously. However, since a human cannot test everything all the time, we have our own test system with which we currently run 5132 automated tests to ensure that PTerm has no bugs.

• ✨ Consistent Colors

PTerm uses the ANSI color scheme which is widely used by terminals to ensure consistent colors in different terminal themes. If that's not enough, PTerm can be used to access the full RGB color scheme (16 million colors) in terminals that support TrueColor.

ANSI Colors

• 📚 Component system

PTerm consists of many components, called Printers, which can be used individually or together to generate pretty console output.

• 🛠 Configurable

PTerm can be used by without any configuration. However, you can easily configure each component with little code, so everyone has the freedom to design their own terminal output.

⚠ NOTICE

PTerm is currently under development. It is very likely that not all things will remain as they are at the moment. However, PTerm is still functional. The versioning of PTerm follows the SemVer guidelines. Breaking Changes are explicitly mentioned in the changelogs and the version will be increased accordingly. Everybody is welcome to improve PTerm, whether by making suggestions or pull requests. Thanks ❤

If you want to wait for a stable release, make sure to star the project and follow it, to get notified when we release v1.0.0 (stable) 🚀

📦 Installation

To make PTerm available in your project, you can run the following command.
Make sure to run this command inside your project, when you're using go modules 😉

go get github.com/pterm/pterm

✏ Documentation

To view the official documentation of the latest release, you can go to the automatically generated page of pkg.go.dev This documentation is very technical and includes every method that can be used in PTerm.

For an easy start we recommend that you take a look at the examples section. Here you can see pretty much every feature of PTerm with its source code. The animations of the examples are automatically updated as soon as something changes in PTerm.

Have fun exploring this project 🚀

💖 Contributing

If you have found a bug or want to suggest a feature, you can do so here by opening a new issue.

If you want to contribute to the development of PTerm, you are very welcome to do so. Our contribution guidelines can be found here.

🧪 Examples

You can find all the examples, with their source code, here: ./_examples

bigtext

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print a large text with the LetterStyle from the standard theme.
	// Useful for title screens.
	pterm.DefaultBigText.WithLetters(pterm.NewLettersFromString("PTerm")).Render()

	// Print a large text with differently colored letters.
	pterm.DefaultBigText.WithLetters(
		pterm.NewLettersFromStringWithStyle("P", pterm.NewStyle(pterm.FgCyan)),
		pterm.NewLettersFromStringWithStyle("Term", pterm.NewStyle(pterm.FgLightMagenta))).
		Render()
}

bulletlist

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print a list with different levels.
	// Useful to generate lists automatically from data.
	pterm.DefaultBulletList.WithItems([]pterm.BulletListItem{
		{Level: 0, Text: "Level 0"},
		{Level: 1, Text: "Level 1"},
		{Level: 2, Text: "Level 2"},
	}).Render()

	// Convert a text to a list and print it.
	pterm.NewBulletListFromString(`0
 1
  2
   3`, " ").Render()
}

bulletlist-custom

Animation

SHOW SOURCE 
package main

import (
	"github.com/pterm/pterm"
)

func main() {
	// Print a customized list with different styles and levels.
	pterm.DefaultBulletList.WithItems([]pterm.BulletListItem{
		{Level: 0, Text: "Blue", TextStyle: pterm.NewStyle(pterm.FgBlue), BulletStyle: pterm.NewStyle(pterm.FgRed)},
		{Level: 1, Text: "Green", TextStyle: pterm.NewStyle(pterm.FgGreen), Bullet: "-", BulletStyle: pterm.NewStyle(pterm.FgLightWhite)},
		{Level: 2, Text: "Cyan", TextStyle: pterm.NewStyle(pterm.FgCyan), Bullet: ">", BulletStyle: pterm.NewStyle(pterm.FgYellow)},
	}).Render()
}

center

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	pterm.DefaultCenter.Println("This text is centered!\nIt centeres the whole block by default.\nIn that way you can do stuff like this:")

	// Generate BigLetters
	s, _ := pterm.DefaultBigText.WithLetters(pterm.NewLettersFromString("PTerm")).Srender()
	pterm.DefaultCenter.Println(s) // Print BigLetters with the default CenterPrinter

	pterm.DefaultCenter.WithCenterEachLineSeparately().Println("This text is centered!\nBut each line is\ncentered\nseparately")
}

demo

Animation

SHOW SOURCE 
package main

import (
	"math/rand"
	"strconv"
	"strings"
	"time"

	"github.com/pterm/pterm"
)

// Change this to time.Millisecond*200 to speed up the demo.
// Useful when debugging.
const second = time.Second

var pseudoProgramList = strings.Split("pseudo-excel pseudo-photoshop pseudo-chrome pseudo-outlook pseudo-explorer "+
	"pseudo-dops pseudo-git pseudo-vsc pseudo-intellij pseudo-minecraft pseudo-scoop pseudo-chocolatey", " ")

func main() {
	introScreen()
	clear()
	pseudoApplicationHeader()
	time.Sleep(second)
	installingPseudoList()
	time.Sleep(second * 2)
	pterm.DefaultSection.WithLevel(2).Println("Program Install Report")
	installedProgramsSize()
	time.Sleep(second * 4)
	pterm.DefaultSection.Println("Tree Printer")
	installedTree()
	time.Sleep(second * 4)
	pterm.DefaultSection.Println("TrueColor Support")
	fadeText()
	time.Sleep(second)
	pterm.DefaultSection.Println("Bullet List Printer")
	listPrinter()
}

func installedTree() {
	leveledList := pterm.LeveledList{
		pterm.LeveledListItem{Level: 0, Text: "C:"},
		pterm.LeveledListItem{Level: 1, Text: "Go"},
		pterm.LeveledListItem{Level: 1, Text: "Windows"},
		pterm.LeveledListItem{Level: 1, Text: "Programs"},
	}
	for _, s := range pseudoProgramList {
		if s != "pseudo-minecraft" {
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 2, Text: s})
		}
		if s == "pseudo-chrome" {
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 3, Text: "pseudo-Tabs"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 3, Text: "pseudo-Extensions"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 4, Text: "Refined GitHub"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 4, Text: "GitHub Dark Theme"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 3, Text: "pseudo-Bookmarks"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 4, Text: "PTerm"})
		}
	}

	pterm.DefaultTree.WithRoot(pterm.NewTreeFromLeveledList(leveledList)).Render()
}

func installingPseudoList() {
	pterm.DefaultSection.Println("Installing pseudo programs")

	p, _ := pterm.DefaultProgressbar.WithTotal(len(pseudoProgramList)).WithTitle("Installing stuff").Start()
	for i := 0; i < p.Total; i++ {
		p.Title = "Installing " + pseudoProgramList[i]
		if pseudoProgramList[i] == "pseudo-minecraft" {
			pterm.Warning.Println("Could not install pseudo-minecraft\nThe company policy forbids games.")
		} else {
			pterm.Success.Println("Installing " + pseudoProgramList[i])
			p.Increment()
		}
		time.Sleep(second / 2)
	}
	p.Stop()
}

func listPrinter() {
	pterm.NewBulletListFromString(`Good bye
 Have a nice day!`, " ").Render()
}

func fadeText() {
	from := pterm.NewRGB(0, 255, 255) // This RGB value is used as the gradients start point.
	to := pterm.NewRGB(255, 0, 255)   // This RGB value is used as the gradients first point.

	str := "If your terminal has TrueColor support, you can use RGB colors!\nYou can even fade them :)"
	strs := strings.Split(str, "")
	var fadeInfo string // String which will be used to print info.
	// For loop over the range of the string length.
	for i := 0; i < len(str); i++ {
		// Append faded letter to info string.
		fadeInfo += from.Fade(0, float32(len(str)), float32(i), to).Sprint(strs[i])
	}
	pterm.Info.Println(fadeInfo)
}

func installedProgramsSize() {
	d := pterm.TableData{{"Program Name", "Status", "Size"}}
	for _, s := range pseudoProgramList {
		if s != "pseudo-minecraft" {
			d = append(d, []string{s, pterm.LightGreen("pass"), strconv.Itoa(randomInt(7, 200)) + "mb"})
		} else {
			d = append(d, []string{pterm.LightRed(s), pterm.LightRed("fail"), "0mb"})
		}
	}
	pterm.DefaultTable.WithHasHeader().WithData(d).Render()
}

func pseudoApplicationHeader() *pterm.TextPrinter {
	return pterm.DefaultHeader.WithBackgroundStyle(pterm.NewStyle(pterm.BgLightBlue)).WithMargin(10).Println(
		"Pseudo Application created with PTerm")
}

func introScreen() {
	pterm.DefaultBigText.WithLetters(
		pterm.NewLettersFromStringWithStyle("P", pterm.NewStyle(pterm.FgLightCyan)),
		pterm.NewLettersFromStringWithStyle("Term", pterm.NewStyle(pterm.FgLightMagenta))).
		Render()

	pterm.DefaultHeader.WithBackgroundStyle(pterm.NewStyle(pterm.BgLightBlue)).WithMargin(10).Println(
		"PTDP - PTerm Demo Program")

	pterm.Info.Println("This animation was generated with the latest version of PTerm!" +
		"\nPTerm works on nearly every terminal and operating system." +
		"\nIt's super easy to use!" +
		"\nIf you want, you can customize everything :)" +
		"\nYou can see the code of this demo in the " + pterm.LightMagenta("./_examples/demo") + " directory." +
		"\n" +
		"\nThis demo was updated at: " + pterm.Green(time.Now().Format("02 Jan 2006 - 15:04:05 MST")))
	pterm.Println()
	introSpinner, _ := pterm.DefaultSpinner.WithRemoveWhenDone(true).Start("Waiting for 15 seconds...")
	time.Sleep(second)
	for i := 14; i > 0; i-- {
		if i > 1 {
			introSpinner.UpdateText("Waiting for " + strconv.Itoa(i) + " seconds...")
		} else {
			introSpinner.UpdateText("Waiting for " + strconv.Itoa(i) + " second...")
		}
		time.Sleep(second)
	}
	introSpinner.Stop()
}

func clear() {
	print("\033[H\033[2J")
}

func randomInt(min, max int) int {
	rand.Seed(time.Now().UnixNano())
	return rand.Intn(max-min+1) + min
}

disable-color

Animation

SHOW SOURCE 
package main

import (
	"math/rand"
	"strconv"
	"strings"
	"time"

	"github.com/pterm/pterm"
)

// Change this to time.Millisecond*200 to speed up the demo.
// Useful when debugging.
const second = time.Second

var pseudoProgramList = strings.Split("pseudo-excel pseudo-photoshop pseudo-chrome pseudo-outlook pseudo-explorer "+
	"pseudo-dops pseudo-git pseudo-vsc pseudo-intellij pseudo-minecraft pseudo-scoop pseudo-chocolatey", " ")

func main() {
	pterm.DisableColor()
	introScreen()
	clear()
	pseudoApplicationHeader()
	time.Sleep(second)
	installingPseudoList()
	time.Sleep(second * 2)
	pterm.DefaultSection.WithLevel(2).Println("Program Install Report")
	installedProgramsSize()
	time.Sleep(second * 4)
	pterm.DefaultSection.Println("Tree Printer")
	installedTree()
	time.Sleep(second * 4)
	pterm.DefaultSection.Println("TrueColor Support")
	fadeText()
	time.Sleep(second)
	pterm.DefaultSection.Println("Bullet List Printer")
	listPrinter()
}

func installedTree() {
	leveledList := pterm.LeveledList{
		pterm.LeveledListItem{Level: 0, Text: "C:"},
		pterm.LeveledListItem{Level: 1, Text: "Go"},
		pterm.LeveledListItem{Level: 1, Text: "Windows"},
		pterm.LeveledListItem{Level: 1, Text: "Programs"},
	}
	for _, s := range pseudoProgramList {
		if s != "pseudo-minecraft" {
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 2, Text: s})
		}
		if s == "pseudo-chrome" {
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 3, Text: "pseudo-Tabs"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 3, Text: "pseudo-Extensions"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 4, Text: "Refined GitHub"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 4, Text: "GitHub Dark Theme"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 3, Text: "pseudo-Bookmarks"})
			leveledList = append(leveledList, pterm.LeveledListItem{Level: 4, Text: "PTerm"})
		}
	}

	pterm.DefaultTree.WithRoot(pterm.NewTreeFromLeveledList(leveledList)).Render()
}

func installingPseudoList() {
	pterm.DefaultSection.Println("Installing pseudo programs")

	p, _ := pterm.DefaultProgressbar.WithTotal(len(pseudoProgramList)).WithTitle("Installing stuff").Start()
	for i := 0; i < p.Total; i++ {
		p.Title = "Installing " + pseudoProgramList[i]
		if pseudoProgramList[i] == "pseudo-minecraft" {
			pterm.Warning.Println("Could not install pseudo-minecraft\nThe company policy forbids games.")
		} else {
			pterm.Success.Println("Installing " + pseudoProgramList[i])
			p.Increment()
		}
		time.Sleep(second / 2)
	}
	p.Stop()
}

func listPrinter() {
	pterm.NewBulletListFromString(`Good bye
 Have a nice day!`, " ").Render()
}

func fadeText() {
	from := pterm.NewRGB(0, 255, 255) // This RGB value is used as the gradients start point.
	to := pterm.NewRGB(255, 0, 255)   // This RGB value is used as the gradients first point.

	str := "If your terminal has TrueColor support, you can use RGB colors!\nYou can even fade them :)"
	strs := strings.Split(str, "")
	var fadeInfo string // String which will be used to print info.
	// For loop over the range of the string length.
	for i := 0; i < len(str); i++ {
		// Append faded letter to info string.
		fadeInfo += from.Fade(0, float32(len(str)), float32(i), to).Sprint(strs[i])
	}
	pterm.Info.Println(fadeInfo)
}

func installedProgramsSize() {
	d := pterm.TableData{{"Program Name", "Status", "Size"}}
	for _, s := range pseudoProgramList {
		if s != "pseudo-minecraft" {
			d = append(d, []string{s, pterm.LightGreen("pass"), strconv.Itoa(randomInt(7, 200)) + "mb"})
		} else {
			d = append(d, []string{pterm.LightRed(s), pterm.LightRed("fail"), "0mb"})
		}
	}
	pterm.DefaultTable.WithHasHeader().WithData(d).Render()
}

func pseudoApplicationHeader() *pterm.TextPrinter {
	return pterm.DefaultHeader.WithBackgroundStyle(pterm.NewStyle(pterm.BgLightBlue)).WithMargin(10).Println(
		"Pseudo Application created with PTerm")
}

func introScreen() {
	pterm.DefaultBigText.WithLetters(
		pterm.NewLettersFromStringWithStyle("P", pterm.NewStyle(pterm.FgLightCyan)),
		pterm.NewLettersFromStringWithStyle("Term", pterm.NewStyle(pterm.FgLightMagenta))).
		Render()

	pterm.DefaultHeader.WithBackgroundStyle(pterm.NewStyle(pterm.BgLightBlue)).WithMargin(10).Println(
		"PTDP - PTerm Demo Program")

	pterm.Info.Println("This animation was generated with the latest version of PTerm!" +
		"\nPTerm works on nearly every terminal and operating system." +
		"\nIt's super easy to use!" +
		"\nIf you want, you can customize everything :)" +
		"\nYou can see the code of this demo in the " + pterm.LightMagenta("./_examples/demo") + " directory." +
		"\n" +
		"\nThis demo was updated at: " + pterm.Green(time.Now().Format("02 Jan 2006 - 15:04:05 MST")))
	pterm.Println()
	introSpinner, _ := pterm.DefaultSpinner.WithRemoveWhenDone(true).Start("Waiting for 15 seconds...")
	time.Sleep(second)
	for i := 14; i > 0; i-- {
		if i > 1 {
			introSpinner.UpdateText("Waiting for " + strconv.Itoa(i) + " seconds...")
		} else {
			introSpinner.UpdateText("Waiting for " + strconv.Itoa(i) + " second...")
		}
		time.Sleep(second)
	}
	introSpinner.Stop()
}

func clear() {
	print("\033[H\033[2J")
}

func randomInt(min, max int) int {
	rand.Seed(time.Now().UnixNano())
	return rand.Intn(max-min+1) + min
}

header

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print a default header.
	pterm.DefaultHeader.Println("This is the default header!")
}

header-custom

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// All available options: https://pkg.go.dev/github.com/pterm/pterm#HeaderPrinter

	// Build on top of DefaultHeader
	pterm.DefaultHeader. // Use DefaultHeader as base
				WithMargin(15).
				WithBackgroundStyle(pterm.NewStyle(pterm.BgCyan)).
				WithTextStyle(pterm.NewStyle(pterm.FgBlack)).
				Println("This is a custom header!")
	// Instead of printing the header you can set it to a variable.
	// You can then reuse your custom header.

	// Making a completely new HeaderPrinter
	newHeader := pterm.HeaderPrinter{
		TextStyle:       pterm.NewStyle(pterm.FgBlack),
		BackgroundStyle: pterm.NewStyle(pterm.BgRed),
		Margin:          20,
	}

	// Print header.
	newHeader.Println("This is a custom header!")
}

override-default-printers

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print default error.
	pterm.Error.Println("This is the default Error")

	// Customize default error.
	pterm.Error.Prefix = pterm.Prefix{
		Text:  "OVERRIDE",
		Style: pterm.NewStyle(pterm.BgCyan, pterm.FgRed),
	}

	// Print new default error.
	pterm.Error.Println("This is the default Error after the prefix was overridden")
}

panel

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Declare panels in a two dimensional grid system.
	panels := pterm.Panels{
		{{Data: "This is the first panel"}, {Data: "This is the second panel"}, {Data: "This\npanel\ncontains\nmultiple\nlines"}},
		{{Data: "This is another panel line"}, {Data: "This is the second panel\nwith a new line"}},
	}

	// Print panels.
	_ = pterm.DefaultPanel.WithPanels(panels).WithPadding(5).Render()
}

paragraph

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print long text with default paragraph printer.
	pterm.DefaultParagraph.Println("This is the default paragraph printer. As you can see, no words are separated, " +
		"but the text is split at the spaces. This is useful for continuous text of all kinds. You can manually change the line width if you want to." +
		"Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam")

	// Print one line space.
	pterm.Println()

	// Print long text without paragraph printer.
	pterm.Println("This text is written with the default Println() function. No intelligent splitting here." +
		"Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam")
}

paragraph-custom

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print a paragraph with a custom maximal width.
	pterm.DefaultParagraph.WithMaxWidth(60).Println("This is a custom paragraph printer. As you can see, no words are separated, " +
		"but the text is split at the spaces. This is useful for continuous text of all kinds. You can manually change the line width if you want to." +
		"Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam")

	// Print one line space.
	pterm.Println()

	// Print text without a paragraph printer.
	pterm.Println("This text is written with the default Println() function. No intelligent splitting here." +
		"Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam")
}

prefix

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Enable debug messages.
	pterm.EnableDebugMessages()

	pterm.Debug.Println("Hello, World!")   // Print Debug.
	pterm.Info.Println("Hello, World!")    // Print Info.
	pterm.Success.Println("Hello, World!") // Print Success.
	pterm.Warning.Println("Hello, World!") // Print Warning.
	pterm.Error.Println("Hello, World!")   // Print Error.
	// Temporarily set Fatal to false, so that the CI won't crash.
	pterm.Fatal.WithFatal(false).Println("Hello, World!") // Print Fatal.
}

print-basic-text

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// A BasicText printer is used to print text, without special formatting.
	// As it implements the TextPrinter interface, you can use it in combination with other printers.
	pterm.DefaultBasicText.Println("Default basic text printer.")
	pterm.DefaultBasicText.Println("Can be used in any" + pterm.LightMagenta(" TextPrinter ") + "context.")
	pterm.DefaultBasicText.Println("For example to resolve progressbars and spinners.")
	// If you just want to print text, you should use this instead:
	// 	pterm.Println("Hello, World!")
}

print-color-fade

Animation

SHOW SOURCE 
package main

import (
	"github.com/pterm/pterm"
)

func main() {
	// Print info.
	pterm.Info.Println("RGB colors only work in Terminals which support TrueColor.")

	from := pterm.NewRGB(0, 255, 255) // This RGB value is used as the gradients start point.
	to := pterm.NewRGB(255, 0, 255)   // This RGB value is used as the gradients end point.

	// For loop over the range of the terminal height.
	for i := 0; i < pterm.GetTerminalHeight()-2; i++ {
		// Print string which is colored with the faded RGB value.
		from.Fade(0, float32(pterm.GetTerminalHeight()-2), float32(i), to).Println("Hello, World!")
	}
}

print-color-fade-multiple

Animation

SHOW SOURCE 
package main

import (
	"strings"

	"github.com/pterm/pterm"
)

func main() {
	from := pterm.NewRGB(0, 255, 255)  // This RGB value is used as the gradients start point.
	to := pterm.NewRGB(255, 0, 255)    // This RGB value is used as the gradients first point.
	to2 := pterm.NewRGB(255, 0, 0)     // This RGB value is used as the gradients second point.
	to3 := pterm.NewRGB(0, 255, 0)     // This RGB value is used as the gradients third point.
	to4 := pterm.NewRGB(255, 255, 255) // This RGB value is used as the gradients end point.

	str := "RGB colors only work in Terminals which support TrueColor."
	strs := strings.Split(str, "")
	var fadeInfo string // String which will be used to print info.
	// For loop over the range of the string length.
	for i := 0; i < len(str); i++ {
		// Append faded letter to info string.
		fadeInfo += from.Fade(0, float32(len(str)), float32(i), to).Sprint(strs[i])
	}

	// Print info.
	pterm.Info.Println(fadeInfo)

	// For loop over the range of the terminal height.
	for i := 0; i < pterm.GetTerminalHeight()-2; i++ {
		// Print string which is colored with the faded RGB value.
		from.Fade(0, float32(pterm.GetTerminalHeight()-2), float32(i), to, to2, to3, to4).Println("Hello, World!")
	}
}

print-color-rgb

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print strings with a custom RGB color.
	// NOTICE: This only works with terminals which support TrueColor.
	pterm.NewRGB(178, 44, 199).Println("This text is printed with a custom RGB!")
	pterm.NewRGB(15, 199, 209).Println("This text is printed with a custom RGB!")
	pterm.NewRGB(201, 144, 30).Println("This text is printed with a custom RGB!")
}

print-with-color

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print different colored words.
	pterm.Println(pterm.Red("Hello, ") + pterm.Green("World") + pterm.Cyan("!"))
	pterm.Println(pterm.Red("Even " + pterm.Cyan("nested ") + pterm.Green("colors ") + "are supported!"))

	// Print strings with set color.
	pterm.FgBlack.Println("FgBlack")
	pterm.FgRed.Println("FgRed")
	pterm.FgGreen.Println("FgGreen")
	pterm.FgYellow.Println("FgYellow")
	pterm.FgBlue.Println("FgBlue")
	pterm.FgMagenta.Println("FgMagenta")
	pterm.FgCyan.Println("FgCyan")
	pterm.FgWhite.Println("FgWhite")
	pterm.Println() // Print one line space.
	pterm.FgLightRed.Println("FgLightRed")
	pterm.FgLightGreen.Println("FgLightGreen")
	pterm.FgLightYellow.Println("FgLightYellow")
	pterm.FgLightBlue.Println("FgLightBlue")
	pterm.FgLightMagenta.Println("FgLightMagenta")
	pterm.FgLightCyan.Println("FgLightCyan")
	pterm.FgLightWhite.Println("FgLightWhite")
}

progressbar

Animation

SHOW SOURCE 
package main

import (
	"strings"
	"time"

	"github.com/pterm/pterm"
)

// Slice of strings with placeholder text.
var fakeInstallList = strings.Split("pseudo-excel pseudo-photoshop pseudo-chrome pseudo-outlook pseudo-explorer "+
	"pseudo-dops pseudo-git pseudo-vsc pseudo-intellij pseudo-minecraft pseudo-scoop pseudo-chocolatey", " ")

func main() {
	// Create progressbar as fork from the default progressbar.
	p, _ := pterm.DefaultProgressbar.WithTotal(len(fakeInstallList)).WithTitle("Downloading stuff").Start()

	for i := 0; i < p.Total; i++ {
		p.Title = "Downloading " + fakeInstallList[i]              // Update the title of the progressbar.
		pterm.Success.Println("Downloading " + fakeInstallList[i]) // If a progressbar is running, each print will be printed above the progressbar.
		p.Increment()                                              // Increment the progressbar by one. Use Add(x int) to increment by a custom amount.
		time.Sleep(time.Millisecond * 350)                         // Sleep 350 milliseconds.
	}
}

section

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Print a section with level one.
	pterm.DefaultSection.Println("This is a section!")
	// Print placeholder.
	pterm.Info.Println("And here is some text.\nThis text could be anything.\nBasically it's just a placeholder")

	// Print a section with level two.
	pterm.DefaultSection.WithLevel(2).Println("This is another section!")
	// Print placeholder.
	pterm.Info.Println("And this is\nmore placeholder text")
}

spinner

Animation

SHOW SOURCE 
package main

import (
	"time"

	"github.com/pterm/pterm"
)

func main() {
	// Create and start a fork of the default spinner.
	spinnerSuccess, _ := pterm.DefaultSpinner.Start("Doing something important... (will succeed)")
	time.Sleep(time.Second * 3) // Simulate 3 seconds of processing something.
	spinnerSuccess.Success()    // Resolve spinner with success message.

	// Create and start a fork of the default spinner.
	spinnerWarning, _ := pterm.DefaultSpinner.Start("Doing something important... (will warn)")
	time.Sleep(time.Second * 3) // Simulate 3 seconds of processing something.
	spinnerWarning.Warning()    // Resolve spinner with warning message.

	// Create and start a fork of the default spinner.
	spinnerFail, _ := pterm.DefaultSpinner.Start("Doing something important... (will fail)")
	time.Sleep(time.Second * 3) // Simulate 3 seconds of processing something.
	spinnerFail.Fail()          // Resolve spinner with error message.

	// Create and start a fork of the default spinner.
	spinnerLiveText, _ := pterm.DefaultSpinner.Start("Doing a lot of stuff...")
	time.Sleep(time.Second * 2)                      // Simulate 2 seconds of processing something.
	spinnerLiveText.UpdateText("It's really much")   // Update spinner text.
	time.Sleep(time.Second * 2)                      // Simulate 2 seconds of processing something.
	spinnerLiveText.UpdateText("We're nearly done!") // Update spinner text.
	time.Sleep(time.Second * 2)                      // Simulate 2 seconds of processing something.
	spinnerLiveText.Success("Finally!")              // Resolve spinner with success message.
}

table

Animation

SHOW SOURCE 
package main

import "github.com/pterm/pterm"

func main() {
	// Create a fork of the default table, fill it with data and print it.
	// Data can also be generated and inserted later.
	pterm.DefaultTable.WithHasHeader().WithData(pterm.TableData{
		{"Firstname", "Lastname", "Email"},
		{"Paul", "Dean", "nisi.dictum.augue@velitAliquam.co.uk"},
		{"Callie", "Mckay", "egestas.nunc.sed@est.com"},
		{"Libby", "Camacho", "aliquet.lobortis@semper.com"},
	}).Render()
}

theme

Animation

SHOW SOURCE 
package main

import (
	"github.com/pterm/pterm"
	"reflect"
	"time"
)

func main() {
	// Print info.
	pterm.Info.Println("These are the default theme styles.\n" +
		"You can modify them easily to your personal preference,\n" +
		"or create new themes from scratch :)")

	pterm.Println() // Print one line space.

	// Print every value of the default theme with its own style.
	v := reflect.ValueOf(pterm.ThemeDefault)
	typeOfS := v.Type()

	if typeOfS == reflect.TypeOf(pterm.Theme{}) {
		for i := 0; i < v.NumField(); i++ {
			field, ok := v.Field(i).Interface().(pterm.Style)
			if ok {
				field.Println(typeOfS.Field(i).Name)
			}
			time.Sleep(time.Millisecond * 250)
		}
	}
}

tree

Animation

SHOW SOURCE 
package main

import (
	"github.com/pterm/pterm"
)

func main() {
	// You can use a LeveledList here, for easy generation.
	leveledList := pterm.LeveledList{
		pterm.LeveledListItem{Level: 0, Text: "C:"},
		pterm.LeveledListItem{Level: 1, Text: "Users"},
		pterm.LeveledListItem{Level: 1, Text: "Windows"},
		pterm.LeveledListItem{Level: 1, Text: "Programs"},
		pterm.LeveledListItem{Level: 1, Text: "Programs(x86)"},
		pterm.LeveledListItem{Level: 1, Text: "dev"},
		pterm.LeveledListItem{Level: 0, Text: "D:"},
		pterm.LeveledListItem{Level: 0, Text: "E:"},
		pterm.LeveledListItem{Level: 1, Text: "Movies"},
		pterm.LeveledListItem{Level: 1, Text: "Music"},
		pterm.LeveledListItem{Level: 2, Text: "LinkinPark"},
		pterm.LeveledListItem{Level: 1, Text: "Games"},
		pterm.LeveledListItem{Level: 2, Text: "Shooter"},
		pterm.LeveledListItem{Level: 3, Text: "CallOfDuty"},
		pterm.LeveledListItem{Level: 3, Text: "CS:GO"},
		pterm.LeveledListItem{Level: 3, Text: "Battlefield"},
		pterm.LeveledListItem{Level: 4, Text: "Battlefield 1"},
		pterm.LeveledListItem{Level: 4, Text: "Battlefield 2"},
		pterm.LeveledListItem{Level: 0, Text: "F:"},
		pterm.LeveledListItem{Level: 1, Text: "dev"},
		pterm.LeveledListItem{Level: 2, Text: "dops"},
		pterm.LeveledListItem{Level: 2, Text: "PTerm"},
	}

	// Generate tree from LeveledList.
	root := pterm.NewTreeFromLeveledList(leveledList)

	// Render Tree
	pterm.DefaultTree.WithRoot(root).Render()
}

GitHub @pterm  ·  Maintainer @MarvinJWendt | MarvinJWendt.com

Documentation

Overview

Package pterm is a modern go module to beautify console output. It can be used without configuration, but if desired, everything can be customized down to the smallest detail. View the animated examples here: https://github.com/pterm/pterm#-examples

Index

Constants

This section is empty.

Variables

View Source 
var (
	// Red is an alias for FgRed.Sprint.
	Red = FgRed.Sprint
	// Cyan is an alias for FgCyan.Sprint.
	Cyan = FgCyan.Sprint
	// Gray is an alias for FgGray.Sprint.
	Gray = FgGray.Sprint
	// Blue is an alias for FgBlue.Sprint.
	Blue = FgBlue.Sprint
	// Black is an alias for FgBlack.Sprint.
	Black = FgBlack.Sprint
	// Green is an alias for FgGreen.Sprint.
	Green = FgGreen.Sprint
	// White is an alias for FgWhite.Sprint.
	White = FgWhite.Sprint
	// Yellow is an alias for FgYellow.Sprint.
	Yellow = FgYellow.Sprint
	// Magenta is an alias for FgMagenta.Sprint.
	Magenta = FgMagenta.Sprint

	// Normal is an alias for FgDefault.Sprint.
	Normal = FgDefault.Sprint

	// LightRed is a shortcut for FgLightRed.Sprint.
	LightRed = FgLightRed.Sprint
	// LightCyan is a shortcut for FgLightCyan.Sprint.
	LightCyan = FgLightCyan.Sprint
	// LightBlue is a shortcut for FgLightBlue.Sprint.
	LightBlue = FgLightBlue.Sprint
	// LightGreen is a shortcut for FgLightGreen.Sprint.
	LightGreen = FgLightGreen.Sprint
	// LightWhite is a shortcut for FgLightWhite.Sprint.
	LightWhite = FgLightWhite.Sprint
	// LightYellow is a shortcut for FgLightYellow.Sprint.
	LightYellow = FgLightYellow.Sprint
	// LightMagenta is a shortcut for FgLightMagenta.Sprint.
	LightMagenta = FgLightMagenta.Sprint
)
View Source 
var (
	// ErrTerminalSizeNotDetectable - the terminal size can not be detected and the fallback values are used.
	ErrTerminalSizeNotDetectable = errors.New("terminal size could not be detected - using fallback value")

	// ErrHexCodeIsInvalid - the given HEX code is invalid.
	ErrHexCodeIsInvalid = errors.New("hex code is not valid")
)
View Source 
var (
	// Info returns a PrefixPrinter, which can be used to print text with an "info" Prefix.
	Info = PrefixPrinter{
		MessageStyle: &ThemeDefault.InfoMessageStyle,
		Prefix: Prefix{
			Style: &ThemeDefault.InfoPrefixStyle,
			Text:  "INFO",
		},
	}

	// Warning returns a PrefixPrinter, which can be used to print text with a "warning" Prefix.
	Warning = PrefixPrinter{
		MessageStyle: &ThemeDefault.WarningMessageStyle,
		Prefix: Prefix{
			Style: &ThemeDefault.WarningPrefixStyle,
			Text:  "WARNING",
		},
	}

	// Success returns a PrefixPrinter, which can be used to print text with a "success" Prefix.
	Success = PrefixPrinter{
		MessageStyle: &ThemeDefault.SuccessMessageStyle,
		Prefix: Prefix{
			Style: &ThemeDefault.SuccessPrefixStyle,
			Text:  "SUCCESS",
		},
	}

	// Error returns a PrefixPrinter, which can be used to print text with an "error" Prefix.
	Error = PrefixPrinter{
		MessageStyle: &ThemeDefault.ErrorMessageStyle,
		Prefix: Prefix{
			Style: &ThemeDefault.ErrorPrefixStyle,
			Text:  " ERROR ",
		},
	}

	// Fatal returns a PrefixPrinter, which can be used to print text with an "fatal" Prefix.
	// NOTICE: Fatal terminates the application immediately!
	Fatal = PrefixPrinter{
		MessageStyle: &ThemeDefault.FatalMessageStyle,
		Prefix: Prefix{
			Style: &ThemeDefault.FatalPrefixStyle,
			Text:  " FATAL ",
		},
		Fatal: true,
	}

	// Debug Prints debug messages. By default it will only print if PrintDebugMessages is true.
	// You can change PrintDebugMessages with EnableDebugMessages and DisableDebugMessages, or by setting the variable itself.
	Debug = PrefixPrinter{
		MessageStyle: &ThemeDefault.DebugMessageStyle,
		Prefix: Prefix{
			Text:  " DEBUG ",
			Style: &ThemeDefault.DebugPrefixStyle,
		},
		Debugger: true,
	}

	// Description returns a PrefixPrinter, which can be used to print text with a "description" Prefix.
	Description = PrefixPrinter{
		MessageStyle: &ThemeDefault.DescriptionMessageStyle,
		Prefix: Prefix{
			Style: &ThemeDefault.DescriptionPrefixStyle,
			Text:  "Description",
		},
	}
)
View Source 
var (
	// Output completely disables output from pterm. Can be used in CLI application quiet mode.
	Output = false
	// PrintDebugMessages sets if messages printed by the DebugPrinter should be printed.
	PrintDebugMessages = false
)
View Source 
var ActiveProgressBars []*Progressbar

ActiveProgressBars contains all running progressbars. Generally, there should only be one active Progressbar at a time.

View Source 
var (
	// DefaultBasicText returns a default BasicTextPrinter, which can be used to print text as is.
	// No default style is present for BasicTextPrinter.
	DefaultBasicText = BasicTextPrinter{}
)
View Source 
var DefaultBigText = BigTextPrinter{
	BigCharacters: map[string]string{
		"a": ` █████  
██   ██ 
███████ 
██   ██ 
██   ██ `,
		"A": ` █████  
██   ██ 
███████ 
██   ██ 
██   ██ `,
		"b": `██████  
██   ██ 
██████  
██   ██ 
██████`,
		"B": `██████  
██   ██ 
██████  
██   ██ 
██████`,
		"c": ` ██████ 
██      
██      
██      
 ██████`,
		"C": ` ██████ 
██      
██      
██      
 ██████`,
		"d": `██████  
██   ██ 
██   ██ 
██   ██ 
██████ `,
		"D": `██████  
██   ██ 
██   ██ 
██   ██ 
██████ `,
		"e": `███████ 
██      
█████   
██      
███████`,
		"E": `███████ 
██      
█████   
██      
███████`,
		"f": `███████ 
██      
█████   
██      
██     `,
		"F": `███████ 
██      
█████   
██      
██     `,
		"g": ` ██████  
██       
██   ███ 
██    ██ 
 ██████  `,
		"G": ` ██████  
██       
██   ███ 
██    ██ 
 ██████  `,
		"h": `██   ██ 
██   ██ 
███████ 
██   ██ 
██   ██ `,
		"H": `██   ██ 
██   ██ 
███████ 
██   ██ 
██   ██ `,
		"i": `██ 
██ 
██ 
██ 
██`,
		"I": `██ 
██ 
██ 
██ 
██`,
		"j": `     ██ 
     ██ 
     ██ 
██   ██ 
 █████ `,
		"J": `     ██ 
     ██ 
     ██ 
██   ██ 
 █████ `,
		"k": `██   ██ 
██  ██  
█████   
██  ██  
██   ██`,
		"K": `██   ██ 
██  ██  
█████   
██  ██  
██   ██`,
		"l": `██      
██      
██      
██      
███████ `,
		"L": `██      
██      
██      
██      
███████ `,
		"m": `███    ███ 
████  ████ 
██ ████ ██ 
██  ██  ██ 
██      ██`,
		"M": `███    ███ 
████  ████ 
██ ████ ██ 
██  ██  ██ 
██      ██`,
		"n": `███    ██ 
████   ██ 
██ ██  ██ 
██  ██ ██ 
██   ████`,
		"N": `███    ██ 
████   ██ 
██ ██  ██ 
██  ██ ██ 
██   ████`,
		"o": ` ██████  
██    ██ 
██    ██ 
██    ██ 
 ██████  `,
		"O": ` ██████  
██    ██ 
██    ██ 
██    ██ 
 ██████  `,
		"p": `██████  
██   ██ 
██████  
██      
██     `,
		"P": `██████  
██   ██ 
██████  
██      
██     `,
		"q": ` ██████  
██    ██ 
██    ██ 
██ ▄▄ ██ 
 ██████  
    ▀▀   `,
		"Q": ` ██████  
██    ██ 
██    ██ 
██ ▄▄ ██ 
 ██████  
    ▀▀   `,
		"r": `██████  
██   ██ 
██████  
██   ██ 
██   ██`,
		"R": `██████  
██   ██ 
██████  
██   ██ 
██   ██`,
		"s": `███████ 
██      
███████ 
     ██ 
███████`,
		"S": `███████ 
██      
███████ 
     ██ 
███████`,
		"t": `████████ 
   ██    
   ██    
   ██    
   ██    `,
		"T": `████████ 
   ██    
   ██    
   ██    
   ██    `,
		"u": `██    ██ 
██    ██ 
██    ██ 
██    ██ 
 ██████ `,
		"U": `██    ██ 
██    ██ 
██    ██ 
██    ██ 
 ██████ `,
		"v": `██    ██ 
██    ██ 
██    ██ 
 ██  ██  
  ████   `,
		"V": `██    ██ 
██    ██ 
██    ██ 
 ██  ██  
  ████   `,
		"w": `██     ██ 
██     ██ 
██  █  ██ 
██ ███ ██ 
 ███ ███ `,
		"W": `██     ██ 
██     ██ 
██  █  ██ 
██ ███ ██ 
 ███ ███ `,
		"x": `██   ██ 
 ██ ██  
  ███   
 ██ ██  
██   ██ `,
		"X": `██   ██ 
 ██ ██  
  ███   
 ██ ██  
██   ██ `,
		"y": `██    ██ 
 ██  ██  
  ████   
   ██    
   ██   `,
		"Y": `██    ██ 
 ██  ██  
  ████   
   ██    
   ██   `,
		"z": `███████ 
   ███  
  ███   
 ███    
███████`,
		"Z": `███████ 
   ███  
  ███   
 ███    
███████`,
		"0": ` ██████  
██  ████ 
██ ██ ██ 
████  ██ 
 ██████ `,
		"1": ` ██ 
███ 
 ██ 
 ██ 
 ██ `,
		"2": `██████  
     ██ 
 █████  
██      
███████ `,
		"3": `██████  
     ██ 
 █████  
     ██ 
██████ `,
		"4": `██   ██ 
██   ██ 
███████ 
     ██ 
     ██ `,
		"5": `███████ 
██      
███████ 
     ██ 
███████ 
       `,
		"6": ` ██████  
██       
███████  
██    ██ 
 ██████ `,
		"7": `███████ 
     ██ 
    ██  
   ██   
   ██`,
		"8": ` █████  
██   ██ 
 █████  
██   ██ 
 █████ `,
		"9": ` █████  
██   ██ 
 ██████ 
     ██ 
 █████  
        `,
		" ": "    ",
		"!": `██ 
██ 
██ 
   
██ `,
		"$": `▄▄███▄▄·
██      
███████ 
     ██ 
███████ 
  ▀▀▀  `,
		"%": `██  ██ 
   ██  
  ██   
 ██    
██  ██`,
		"/": `    ██ 
   ██  
  ██   
 ██    
██     
       `,
		"(": ` ██ 
██  
██  
██  
 ██ `,
		")": `██  
 ██ 
 ██ 
 ██ 
██  `,
		"?": `██████  
     ██ 
  ▄███  
  ▀▀    
  ██   `,
		"[": `███ 
██  
██  
██  
███`,
		"]": `███ 
 ██ 
 ██ 
 ██ 
███ `,
		".": `   
   
   
   
██`,
		",": `   
   
   
   
▄█`,
		"-": `      
      
█████ 
      
      
      
     `,
		"<": `  ██ 
 ██  
██   
 ██  
  ██ `,
		">": `██   
 ██  
  ██ 
 ██  
██ `,
		"*": `      
▄ ██ ▄
 ████ 
▀ ██ ▀
     `,
		"#": ` ██  ██  
████████ 
 ██  ██  
████████ 
 ██  ██ `,
		"_": `        
        
        
        
███████ `,
	},
}

DefaultBigText contains default values for BigTextPrinter.

View Source 
var DefaultBulletList = BulletList{
	Bullet:      "•",
	TextStyle:   &ThemeDefault.BulletListTextStyle,
	BulletStyle: &ThemeDefault.BulletListBulletStyle,
}

DefaultBulletList contains standards, which can be used to print a BulletList.

View Source 
var DefaultCenter = CenterPrinter{
	CenterEachLineSeparately: false,
}

DefaultCenter is the default CenterPrinter.

View Source 
var (
	// DefaultHeader returns the printer for a default header text.
	// Defaults to LightWhite, Bold Text and a Gray DefaultHeader background.
	DefaultHeader = HeaderPrinter{
		TextStyle:       &ThemeDefault.HeaderTextStyle,
		BackgroundStyle: &ThemeDefault.HeaderBackgroundStyle,
		Margin:          5,
	}
)
View Source 
var DefaultListItem = BulletListItem{
	Bullet:      "•",
	TextStyle:   &ThemeDefault.BulletListTextStyle,
	BulletStyle: &ThemeDefault.BulletListBulletStyle,
}

DefaultListItem contains standards, which can be used to print a ListItem.

View Source 
var DefaultPanel = PanelPrinter{
	Padding: 1,
}

DefaultPanel is the default PanelPrinter.

View Source 
var DefaultParagraph = ParagraphPrinter{
	MaxWidth: GetTerminalWidth(),
}

DefaultParagraph contains the default values for a ParagraphPrinter.

View Source 
var (
	// DefaultProgressbar is the default progressbar.
	DefaultProgressbar = Progressbar{
		Total:                     100,
		BarCharacter:              "█",
		LastCharacter:             "█",
		ElapsedTimeRoundingFactor: time.Second,
		BarStyle:                  &ThemeDefault.ProgressbarBarStyle,
		TitleStyle:                &ThemeDefault.ProgressbarTitleStyle,
		ShowTitle:                 true,
		ShowCount:                 true,
		ShowPercentage:            true,
		ShowElapsedTime:           true,
		BarFiller:                 " ",
	}
)
View Source 
var DefaultSection = SectionPrinter{
	Style:           &ThemeDefault.SectionStyle,
	Level:           1,
	TopPadding:      1,
	BottomPadding:   1,
	IndentCharacter: "#",
}

DefaultSection is the default section printer.

View Source 
var DefaultSpinner = Spinner{
	Sequence:       []string{"▀ ", " ▀", " ▄", "▄ "},
	Style:          &ThemeDefault.SpinnerStyle,
	Delay:          time.Millisecond * 200,
	MessageStyle:   &ThemeDefault.SpinnerTextStyle,
	SuccessPrinter: &Success,
	FailPrinter:    &Error,
	WarningPrinter: &Warning,
}

DefaultSpinner is the default spinner.

View Source 
var DefaultTable = Table{
	Style:          &ThemeDefault.TableStyle,
	HeaderStyle:    &ThemeDefault.TableHeaderStyle,
	Separator:      " | ",
	SeparatorStyle: &ThemeDefault.TableSeparatorStyle,
}

DefaultTable contains standards, which can be used to print a Table.

View Source 
var DefaultTree = Tree{
	TreeStyle:            &ThemeDefault.TreeStyle,
	TextStyle:            &ThemeDefault.TreeTextStyle,
	TopRightCornerString: "└",
	HorizontalString:     "─",
	TopRightDownString:   "├",
	VerticalString:       "│",
	RightDownLeftString:  "┬",
	Indent:               2,
}

DefaultTree contains standards, which can be used to render a Tree.

View Source 
var FallbackTerminalHeight = 10

FallbackTerminalHeight is the value used for GetTerminalHeight, if the actual height can not be detected You can override that value if necessary.

View Source 
var FallbackTerminalWidth = 80

FallbackTerminalWidth is the value used for GetTerminalWidth, if the actual width can not be detected You can override that value if necessary.

View Source 
var (
	// GrayBoxStyle wraps text in a gray box.
	GrayBoxStyle = NewStyle(BgGray, FgLightWhite)
)
View Source 
var PrintColor = true

PrintColor is false if PTerm should not print colored output.

View Source 
var (
	// ThemeDefault is the default theme used by PTerm.
	// If this variable is overwritten, the new value is used as default theme.
	ThemeDefault = Theme{
		PrimaryStyle:            Style{FgCyan},
		SecondaryStyle:          Style{FgLightMagenta},
		HighlightStyle:          Style{Bold, FgYellow},
		InfoMessageStyle:        Style{FgLightCyan},
		InfoPrefixStyle:         Style{FgBlack, BgCyan},
		SuccessMessageStyle:     Style{FgGreen},
		SuccessPrefixStyle:      Style{FgBlack, BgGreen},
		WarningMessageStyle:     Style{FgYellow},
		WarningPrefixStyle:      Style{FgBlack, BgYellow},
		ErrorMessageStyle:       Style{FgLightRed},
		ErrorPrefixStyle:        Style{FgBlack, BgLightRed},
		FatalMessageStyle:       Style{FgLightRed},
		FatalPrefixStyle:        Style{FgBlack, BgLightRed},
		DescriptionMessageStyle: Style{FgDefault},
		DescriptionPrefixStyle:  Style{FgLightWhite, BgDarkGray},
		ScopeStyle:              Style{FgGray},
		ProgressbarBarStyle:     Style{FgCyan},
		ProgressbarTitleStyle:   Style{FgLightCyan},
		HeaderTextStyle:         Style{FgLightWhite, Bold},
		HeaderBackgroundStyle:   Style{BgGray},
		SpinnerStyle:            Style{FgLightCyan},
		SpinnerTextStyle:        Style{FgLightWhite},
		TableStyle:              Style{FgDefault},
		TableHeaderStyle:        Style{FgLightCyan},
		TableSeparatorStyle:     Style{FgGray},
		SectionStyle:            Style{Bold, FgYellow},
		BulletListTextStyle:     Style{FgDefault},
		BulletListBulletStyle:   Style{FgGray},
		TreeStyle:               Style{FgGray},
		TreeTextStyle:           Style{FgDefault},
		LetterStyle:             Style{FgDefault},
		DebugMessageStyle:       Style{FgGray},
		DebugPrefixStyle:        Style{FgBlack, BgGray},
	}
)

Functions

func DisableColor added in v0.9.2 

func DisableColor()

DisableColor disables colors.

func DisableDebugMessages added in v0.9.0 

func DisableDebugMessages()

DisableDebugMessages disables the output of debug printers.

func DisableOutput added in v0.5.1 

func DisableOutput()

DisableOutput disables the output of PTerm.

func EnableColor added in v0.9.2 

func EnableColor()

EnableColor enables colors.

func EnableDebugMessages added in v0.9.0 

func EnableDebugMessages()

EnableDebugMessages enables the output of debug printers.

func EnableOutput added in v0.10.0 

func EnableOutput()

EnableOutput enables the output of PTerm.

func Fprint added in v0.1.0 

func Fprint(writer io.Writer, a ...interface{})

Fprint formats using the default formats for its operands and writes to w. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func Fprintln added in v0.1.0 

func Fprintln(writer io.Writer, a ...interface{})

Fprintln formats using the default formats for its operands and writes to w. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func Fprinto added in v0.1.0 

func Fprinto(w io.Writer, a ...interface{})

Fprinto prints Printo to a custom writer.

func GetTerminalHeight added in v0.1.0 

func GetTerminalHeight() int

GetTerminalHeight returns the terminal height of the active terminal.

func GetTerminalSize added in v0.1.0 

func GetTerminalSize() (width, height int, err error)

GetTerminalSize returns the width and the height of the active terminal.

func GetTerminalWidth added in v0.1.0 

func GetTerminalWidth() int

GetTerminalWidth returns the terminal width of the active terminal.

func Print 

func Print(a ...interface{})

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func Printf 

func Printf(format string, a ...interface{})

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered.

func Println 

func Println(a ...interface{})

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func Printo added in v0.1.0 

func Printo(a ...interface{})

Printo overrides the current line in a terminal. If the current line is empty, the text will be printed like with pterm.Print. To create a new line, which Example: pterm.Printo("Hello, World") time.Sleep(time.Second) pterm.Oprint("Hello, Earth!")

func RemoveColorFromString added in v0.4.0 

func RemoveColorFromString(a ...interface{}) string

RemoveColorFromString removes color codes from a string.

func SetDefaultOutput added in v0.3.1 

func SetDefaultOutput(w io.Writer)

SetDefaultOutput sets the default output of pterm.

func Sprint 

func Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string.

func Sprintf 

func Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string.

func Sprintln added in v0.2.0 

func Sprintln(a ...interface{}) string

Sprintln returns what Println would print to the terminal.

func Sprinto added in v0.2.3 

func Sprinto(a ...interface{}) string

Sprinto returns what Printo would print.

Types

type BasicTextPrinter added in v0.6.0 

type BasicTextPrinter struct {
	Style *Style
}

BasicTextPrinter is the printer used to print the input as-is or as specified by user formatting.

func (*BasicTextPrinter) Print added in v0.6.0 

func (p *BasicTextPrinter) Print(a ...interface{}) *TextPrinter

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func (*BasicTextPrinter) Printf added in v0.6.0 

func (p *BasicTextPrinter) Printf(format string, a ...interface{}) *TextPrinter

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered.

func (*BasicTextPrinter) Println added in v0.6.0 

func (p *BasicTextPrinter) Println(a ...interface{}) *TextPrinter

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func (BasicTextPrinter) Sprint added in v0.6.0 

func (p BasicTextPrinter) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string.

func (BasicTextPrinter) Sprintf added in v0.6.0 

func (p BasicTextPrinter) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string.

func (BasicTextPrinter) Sprintln added in v0.6.0 

func (p BasicTextPrinter) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended.

func (BasicTextPrinter) WithStyle added in v0.6.0 

func (p BasicTextPrinter) WithStyle(style *Style) *BasicTextPrinter

WithStyle adds a style to the printer.

type BigTextPrinter added in v0.8.0 

type BigTextPrinter struct {
	// BigCharacters holds the map from a normal character to it's big version.
	BigCharacters map[string]string
	Letters       Letters
}

BigTextPrinter renders big text. You can use this as title screen for your application.

func (BigTextPrinter) Render added in v0.8.0 

func (p BigTextPrinter) Render() error

Render prints the BigText to the terminal.

func (BigTextPrinter) Srender added in v0.8.0 

func (p BigTextPrinter) Srender() (string, error)

Srender renders the BigText as a string.

func (BigTextPrinter) WithBigCharacters added in v0.8.0 

func (p BigTextPrinter) WithBigCharacters(chars map[string]string) *BigTextPrinter

WithBigCharacters returns a new BigTextPrinter with specific BigCharacters.

func (BigTextPrinter) WithLetters added in v0.8.0 

func (p BigTextPrinter) WithLetters(letters ...Letters) *BigTextPrinter

WithLetters returns a new BigTextPrinter with specific Letters

type BulletList added in v0.8.0 

type BulletList struct {
	Items       []BulletListItem
	TextStyle   *Style
	Bullet      string
	BulletStyle *Style
}

BulletList is able to render a list.

func NewBulletListFromString added in v0.9.0 

func NewBulletListFromString(s string, padding string) BulletList

NewBulletListFromString returns a BulletList with Text using the NewTreeListItemFromString method, splitting after return (\n).

func NewBulletListFromStrings added in v0.9.0 

func NewBulletListFromStrings(s []string, padding string) BulletList

NewBulletListFromStrings returns a BulletList with Text using the NewTreeListItemFromString method.

func (BulletList) Render added in v0.8.0 

func (l BulletList) Render() error

Render prints the list to the terminal.

func (BulletList) Srender added in v0.8.0 

func (l BulletList) Srender() (string, error)

Srender renders the list as a string.

func (BulletList) WithBullet added in v0.8.0 

func (l BulletList) WithBullet(bullet string) *BulletList

WithBullet returns a new list with a specific bullet.

func (BulletList) WithBulletStyle added in v0.8.0 

func (l BulletList) WithBulletStyle(style *Style) *BulletList

WithBulletStyle returns a new list with a specific bullet style.

func (BulletList) WithItems added in v0.8.0 

func (l BulletList) WithItems(items []BulletListItem) *BulletList

WithItems returns a new list with specific Items.

func (BulletList) WithTextStyle added in v0.8.0 

func (l BulletList) WithTextStyle(style *Style) *BulletList

WithTextStyle returns a new list with a specific text style.

type BulletListItem added in v0.8.0 

type BulletListItem struct {
	Level       int
	Text        string
	TextStyle   *Style
	Bullet      string
	BulletStyle *Style
}

BulletListItem is able to render a ListItem.

func NewBulletListItemFromString added in v0.9.0 

func NewBulletListItemFromString(text string, padding string) BulletListItem

NewBulletListItemFromString returns a BulletListItem with a Text. The padding is counted in the Text to define the Level of the ListItem.

func (BulletListItem) Render added in v0.8.0 

func (p BulletListItem) Render()

Render renders the BulletListItem as a string.

func (BulletListItem) Srender added in v0.8.0 

func (p BulletListItem) Srender() string

Srender renders the BulletListItem as a string.

func (BulletListItem) WithBullet added in v0.8.0 

func (p BulletListItem) WithBullet(bullet string) BulletListItem

WithBullet returns a new BulletListItem with a specific Prefix.

func (BulletListItem) WithBulletStyle added in v0.8.0 

func (p BulletListItem) WithBulletStyle(style *Style) BulletListItem

WithBulletStyle returns a new BulletListItem with a specific BulletStyle.

func (BulletListItem) WithLevel added in v0.8.0 

func (p BulletListItem) WithLevel(level int) BulletListItem

WithLevel returns a new BulletListItem with a specific Level.

func (BulletListItem) WithText added in v0.8.0 

func (p BulletListItem) WithText(text string) BulletListItem

WithText returns a new BulletListItem with a specific Text.

func (BulletListItem) WithTextStyle added in v0.8.0 

func (p BulletListItem) WithTextStyle(style *Style) BulletListItem

WithTextStyle returns a new BulletListItem with a specific TextStyle.

type CenterPrinter added in v0.10.1 

type CenterPrinter struct {
	CenterEachLineSeparately bool
}

CenterPrinter prints centered text.

func (CenterPrinter) Print added in v0.10.1 

func (p CenterPrinter) Print(a ...interface{}) *TextPrinter

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func (CenterPrinter) Printf added in v0.10.1 

func (p CenterPrinter) Printf(format string, a ...interface{}) *TextPrinter

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered.

func (CenterPrinter) Println added in v0.10.1 

func (p CenterPrinter) Println(a ...interface{}) *TextPrinter

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func (CenterPrinter) Sprint added in v0.10.1 

func (p CenterPrinter) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string.

func (CenterPrinter) Sprintf added in v0.10.1 

func (p CenterPrinter) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string.

func (CenterPrinter) Sprintln added in v0.10.1 

func (p CenterPrinter) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended.

func (CenterPrinter) WithCenterEachLineSeparately added in v0.10.1 

func (p CenterPrinter) WithCenterEachLineSeparately(b ...bool) *CenterPrinter

WithCenterEachLineSeparately centers each line separately.

type Color 

type Color uint8

Color is a number which will be used to color strings in the terminal. 

const (
	FgBlack Color = iota + 30
	FgRed
	FgGreen
	FgYellow
	FgBlue
	FgMagenta
	FgCyan
	FgWhite
	// FgDefault revert default FG.
	FgDefault Color = 39
)

Foreground colors. basic foreground colors 30 - 37. 

const (
	FgDarkGray Color = iota + 90
	FgLightRed
	FgLightGreen
	FgLightYellow
	FgLightBlue
	FgLightMagenta
	FgLightCyan
	FgLightWhite
	// FgGray is an alias of FgDarkGray.
	FgGray Color = 90
)

Extra foreground color 90 - 97. 

const (
	BgBlack Color = iota + 40
	BgRed
	BgGreen
	BgYellow // BgBrown like yellow
	BgBlue
	BgMagenta
	BgCyan
	BgWhite
	// BgDefault reverts to the default background.
	BgDefault Color = 49
)

Background colors. basic background colors 40 - 47. 

const (
	BgDarkGray Color = iota + 100
	BgLightRed
	BgLightGreen
	BgLightYellow
	BgLightBlue
	BgLightMagenta
	BgLightCyan
	BgLightWhite
	// BgGray is an alias of BgDarkGray.
	BgGray Color = 100
)

Extra background color 100 - 107. 

const (
	Reset Color = iota
	Bold
	Fuzzy
	Italic
	Underscore
	Blink
	FastBlink
	Reverse
	Concealed
	Strikethrough
)

Option settings.

func (Color) Print 

func (c Color) Print(a ...interface{})

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered. Input will be colored with the parent Color.

func (Color) Printf 

func (c Color) Printf(format string, a ...interface{})

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered. Input will be colored with the parent Color.

func (Color) Println 

func (c Color) Println(a ...interface{})

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered. Input will be colored with the parent Color.

func (Color) Sprint 

func (c Color) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string. Input will be colored with the parent Color.

func (Color) Sprintf 

func (c Color) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string. Input will be colored with the parent Color.

func (Color) Sprintln 

func (c Color) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended. Input will be colored with the parent Color.

func (Color) String 

func (c Color) String() string

String converts the color to a string. eg "35".

type HeaderPrinter added in v0.0.1 

type HeaderPrinter struct {
	TextStyle       *Style
	BackgroundStyle *Style
	Margin          int
	FullWidth       bool
}

HeaderPrinter contains the data used to craft a header. A header is printed as a big box with text in it. Can be used as title screens or section separator.

func (*HeaderPrinter) Print added in v0.0.1 

func (p *HeaderPrinter) Print(a ...interface{}) *TextPrinter

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func (*HeaderPrinter) Printf added in v0.0.1 

func (p *HeaderPrinter) Printf(format string, a ...interface{}) *TextPrinter

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered.

func (*HeaderPrinter) Println added in v0.0.1 

func (p *HeaderPrinter) Println(a ...interface{}) *TextPrinter

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func (HeaderPrinter) Sprint added in v0.0.1 

func (p HeaderPrinter) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string.

func (HeaderPrinter) Sprintf added in v0.0.1 

func (p HeaderPrinter) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string.

func (HeaderPrinter) Sprintln added in v0.0.1 

func (p HeaderPrinter) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended.

func (HeaderPrinter) WithBackgroundStyle added in v0.1.0 

func (p HeaderPrinter) WithBackgroundStyle(style *Style) *HeaderPrinter

WithBackgroundStyle changes the background styling of the header.

func (HeaderPrinter) WithFullWidth added in v0.1.0 

func (p HeaderPrinter) WithFullWidth(b ...bool) *HeaderPrinter

WithFullWidth enables full width on a HeaderPrinter.

func (HeaderPrinter) WithMargin added in v0.1.0 

func (p HeaderPrinter) WithMargin(margin int) *HeaderPrinter

WithMargin changes the background styling of the header.

func (HeaderPrinter) WithTextStyle added in v0.1.0 

func (p HeaderPrinter) WithTextStyle(style *Style) *HeaderPrinter

WithTextStyle returns a new HeaderPrinter with changed

type Letter added in v0.8.0 

type Letter struct {
	String string
	Style  *Style
}

Letter is an object, which holds a string and a specific Style for it.

func (Letter) WithString added in v0.8.0 

func (l Letter) WithString(s string) *Letter

WithString returns a new Letter with a specific String.

func (Letter) WithStyle added in v0.8.0 

func (l Letter) WithStyle(style *Style) *Letter

WithStyle returns a new Letter with a specific Style.

type Letters added in v0.8.0 

type Letters []Letter

Letters is a slice of Letter.

func NewLettersFromString added in v0.8.0 

func NewLettersFromString(text string) Letters

NewLettersFromString creates a Letters object from a string, which is prefilled with the LetterStyle from ThemeDefault. You can override the ThemeDefault LetterStyle if you want to.

func NewLettersFromStringWithStyle added in v0.8.0 

func NewLettersFromStringWithStyle(text string, style *Style) Letters

NewLettersFromStringWithStyle creates a Letters object from a string and applies a Style to it.

type LeveledList added in v0.9.3 

type LeveledList []LeveledListItem

LeveledList is a list, which contains multiple LeveledListItem.

type LeveledListItem added in v0.9.3 

type LeveledListItem struct {
	Level int
	Text  string
}

LeveledListItem combines a text with a specific level. The level is the indent, which would normally be seen in a BulletList.

type LivePrinter added in v0.5.0 

type LivePrinter interface {
	// GenericStart runs Start, but returns a LivePrinter.
	// This is used for the interface LivePrinter.
	// You most likely want to use Start instead of this in your program.
	GenericStart() (*LivePrinter, error)

	// GenericStop runs Stop, but returns a LivePrinter.
	// This is used for the interface LivePrinter.
	// You most likely want to use Stop instead of this in your program.
	GenericStop() (*LivePrinter, error)
}

LivePrinter is a printer which can update it's output live.

type Panel added in v0.11.0 

type Panel struct {
	Data string
}

Panel contains the data, which should be printed inside a PanelPrinter.

type PanelPrinter added in v0.11.0 

type PanelPrinter struct {
	Panels  Panels
	Padding int
}

PanelPrinter prints content in boxes.

func (PanelPrinter) Render added in v0.11.0 

func (p PanelPrinter) Render() error

Render prints the Template to the terminal.

func (PanelPrinter) Srender added in v0.11.0 

func (p PanelPrinter) Srender() (string, error)

Srender renders the Template as a string.

func (PanelPrinter) WithPadding added in v0.11.0 

func (p PanelPrinter) WithPadding(padding int) *PanelPrinter

WithPadding returns a new PanelPrinter with specific options.

func (PanelPrinter) WithPanels added in v0.11.0 

func (p PanelPrinter) WithPanels(panels Panels) *PanelPrinter

WithPanels returns a new PanelPrinter with specific options.

type Panels added in v0.11.0 

type Panels [][]Panel

Panels is a two dimensional coordinate system for Panel.

type ParagraphPrinter added in v0.5.0 

type ParagraphPrinter struct {
	MaxWidth int
}

ParagraphPrinter can print paragraphs to a fixed line width. The text will split between words, so that words will stick together. It's like in a book.

func (*ParagraphPrinter) Print added in v0.5.0 

func (p *ParagraphPrinter) Print(a ...interface{}) *TextPrinter

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func (*ParagraphPrinter) Printf added in v0.5.0 

func (p *ParagraphPrinter) Printf(format string, a ...interface{}) *TextPrinter

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered.

func (*ParagraphPrinter) Println added in v0.5.0 

func (p *ParagraphPrinter) Println(a ...interface{}) *TextPrinter

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func (ParagraphPrinter) Sprint added in v0.5.0 

func (p ParagraphPrinter) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string.

func (ParagraphPrinter) Sprintf added in v0.5.0 

func (p ParagraphPrinter) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string.

func (ParagraphPrinter) Sprintln added in v0.5.0 

func (p ParagraphPrinter) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended.

func (ParagraphPrinter) WithMaxWidth added in v0.5.0 

func (p ParagraphPrinter) WithMaxWidth(width int) *ParagraphPrinter

WithMaxWidth returns a new ParagraphPrinter with a specific MaxWidth

type Prefix 

type Prefix struct {
	Text  string
	Style *Style
}

Prefix contains the data used as the beginning of a printed text via a PrefixPrinter.

type PrefixPrinter 

type PrefixPrinter struct {
	Prefix       Prefix
	Scope        Scope
	MessageStyle *Style
	Fatal        bool
	// If Debugger is true, the printer will only print if PrintDebugMessages is set to true.
	// You can change PrintDebugMessages with EnableDebugMessages and DisableDebugMessages, or by setting the variable itself.
	Debugger bool
}

PrefixPrinter is the printer used to print a Prefix.

func (PrefixPrinter) GetFormattedPrefix 

func (p PrefixPrinter) GetFormattedPrefix() string

GetFormattedPrefix returns the Prefix as a styled text string.

func (*PrefixPrinter) Print 

func (p *PrefixPrinter) Print(a ...interface{}) *TextPrinter

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func (*PrefixPrinter) Printf 

func (p *PrefixPrinter) Printf(format string, a ...interface{}) *TextPrinter

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered.

func (*PrefixPrinter) Println 

func (p *PrefixPrinter) Println(a ...interface{}) *TextPrinter

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func (*PrefixPrinter) Sprint 

func (p *PrefixPrinter) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string.

func (PrefixPrinter) Sprintf 

func (p PrefixPrinter) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string.

func (PrefixPrinter) Sprintln 

func (p PrefixPrinter) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended.

func (PrefixPrinter) WithDebugger added in v0.9.0 

func (p PrefixPrinter) WithDebugger(b ...bool) *PrefixPrinter

WithDebugger returns a new Printer with specific Debugger value. If Debugger is true, the printer will only print if PrintDebugMessages is set to true. You can change PrintDebugMessages with EnableDebugMessages and DisableDebugMessages, or by setting the variable itself.

func (PrefixPrinter) WithFatal added in v0.3.0 

func (p PrefixPrinter) WithFatal(b ...bool) *PrefixPrinter

WithFatal sets if the printer should panic after printing. NOTE: The printer will only panic if either PrefixPrinter.Println, PrefixPrinter.Print or PrefixPrinter.Printf is called.

func (PrefixPrinter) WithMessageStyle added in v0.1.0 

func (p PrefixPrinter) WithMessageStyle(style *Style) *PrefixPrinter

WithMessageStyle adds a custom prefix to the printer.

func (PrefixPrinter) WithPrefix added in v0.1.0 

func (p PrefixPrinter) WithPrefix(prefix Prefix) *PrefixPrinter

WithPrefix adds a custom prefix to the printer.

func (PrefixPrinter) WithScope 

func (p PrefixPrinter) WithScope(scope Scope) *PrefixPrinter

WithScope adds a scope to the Prefix.

type Progressbar added in v0.2.1 

type Progressbar struct {
	Title                     string
	Total                     int
	Current                   int
	BarCharacter              string
	LastCharacter             string
	ElapsedTimeRoundingFactor time.Duration
	BarFiller                 string

	ShowElapsedTime bool
	ShowCount       bool
	ShowTitle       bool
	ShowPercentage  bool
	RemoveWhenDone  bool

	TitleStyle *Style
	BarStyle   *Style

	IsActive bool
	// contains filtered or unexported fields
}

Progressbar shows a progress animation in the terminal.

func (*Progressbar) Add added in v0.2.1 

func (p *Progressbar) Add(count int) *Progressbar

Add to current value.

func (Progressbar) GenericStart added in v0.5.0 

func (p Progressbar) GenericStart() (*LivePrinter, error)

GenericStart runs Start, but returns a LivePrinter. This is used for the interface LivePrinter. You most likely want to use Start instead of this in your program.

func (Progressbar) GenericStop added in v0.5.0 

func (p Progressbar) GenericStop() (*LivePrinter, error)

GenericStop runs Stop, but returns a LivePrinter. This is used for the interface LivePrinter. You most likely want to use Stop instead of this in your program.

func (*Progressbar) GetElapsedTime added in v0.2.1 

func (p *Progressbar) GetElapsedTime() time.Duration

GetElapsedTime returns the elapsed time, since the progressbar was started.

func (*Progressbar) Increment added in v0.2.1 

func (p *Progressbar) Increment() *Progressbar

Increment current value by one.

func (Progressbar) Start added in v0.2.1 

func (p Progressbar) Start() (*Progressbar, error)

Start the progressbar.

func (*Progressbar) Stop added in v0.2.1 

func (p *Progressbar) Stop() (*Progressbar, error)

Stop the progressbar.

func (Progressbar) WithBarCharacter added in v0.8.0 

func (p Progressbar) WithBarCharacter(char string) *Progressbar

WithBarCharacter sets the bar character of the progressbar.

func (Progressbar) WithBarStyle added in v0.3.0 

func (p Progressbar) WithBarStyle(style *Style) *Progressbar

WithBarStyle sets the style of the bar.

func (Progressbar) WithCurrent added in v0.3.0 

func (p Progressbar) WithCurrent(current int) *Progressbar

WithCurrent sets the current value of the progressbar.

func (Progressbar) WithElapsedTimeRoundingFactor added in v0.3.0 

func (p Progressbar) WithElapsedTimeRoundingFactor(duration time.Duration) *Progressbar

WithElapsedTimeRoundingFactor sets the rounding factor of the elapsed time.

func (Progressbar) WithLastCharacter added in v0.3.0 

func (p Progressbar) WithLastCharacter(char string) *Progressbar

WithLastCharacter sets the last character of the progressbar.

func (Progressbar) WithRemoveWhenDone added in v0.7.0 

func (p Progressbar) WithRemoveWhenDone(b ...bool) *Progressbar

WithRemoveWhenDone sets if the progressbar should be removed when it is done.

func (Progressbar) WithShowCount added in v0.3.0 

func (p Progressbar) WithShowCount(b ...bool) *Progressbar

WithShowCount sets if the total and current count should be displayed in the progressbar.

func (Progressbar) WithShowElapsedTime added in v0.3.0 

func (p Progressbar) WithShowElapsedTime(b ...bool) *Progressbar

WithShowElapsedTime sets if the elapsed time should be displayed in the progressbar.

func (Progressbar) WithShowPercentage added in v0.3.0 

func (p Progressbar) WithShowPercentage(b ...bool) *Progressbar

WithShowPercentage sets if the completed percentage should be displayed in the progressbar.

func (Progressbar) WithShowTitle added in v0.3.0 

func (p Progressbar) WithShowTitle(b ...bool) *Progressbar

WithShowTitle sets if the title should be displayed in the progressbar.

func (Progressbar) WithTitle added in v0.3.0 

func (p Progressbar) WithTitle(name string) *Progressbar

WithTitle sets the name of the progressbar.

func (Progressbar) WithTitleStyle added in v0.3.0 

func (p Progressbar) WithTitleStyle(style *Style) *Progressbar

WithTitleStyle sets the style of the title.

func (Progressbar) WithTotal added in v0.3.0 

func (p Progressbar) WithTotal(total int) *Progressbar

WithTotal sets the total value of the progressbar.

type RGB added in v0.5.1 

type RGB struct {
	R uint8
	G uint8
	B uint8
}

RGB color model is an additive color model in which red, green, and blue light are added together in various ways to reproduce a broad array of colors. The name of the model comes from the initials of the three additive primary colors, red, green, and blue. https://en.wikipedia.org/wiki/RGB_color_model

func NewRGB added in v0.5.1 

func NewRGB(r, g, b uint8) RGB

NewRGB returns a new RGB.

func NewRGBFromHEX added in v0.5.1 

func NewRGBFromHEX(hex string) (RGB, error)

NewRGBFromHEX converts a HEX and returns a new RGB.

func (RGB) Fade added in v0.5.1 

func (p RGB) Fade(min, max, current float32, end ...RGB) RGB

Fade fades one RGB value (over other RGB values) to another RGB value, by giving the function a minimum, maximum and current value.

func (RGB) GetValues added in v0.5.1 

func (p RGB) GetValues() (r, g, b uint8)

GetValues returns the RGB values separately.

func (RGB) Print added in v0.5.1 

func (p RGB) Print(a ...interface{}) *TextPrinter

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func (RGB) Printf added in v0.5.1 

func (p RGB) Printf(format string, a ...interface{}) *TextPrinter

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered.

func (RGB) Println added in v0.5.1 

func (p RGB) Println(a ...interface{}) *TextPrinter

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func (RGB) Sprint added in v0.5.1 

func (p RGB) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string.

func (RGB) Sprintf added in v0.5.1 

func (p RGB) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string.

func (RGB) Sprintln added in v0.5.1 

func (p RGB) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended.

type RenderPrinter added in v0.5.0 

type RenderPrinter interface {
	// Render the XXX to the terminal.
	Render() error

	// Srender returns the rendered string of XXX.
	Srender() (string, error)
}

RenderPrinter is used to display renderable content. Example for renderable content is a Table.

type Scope 

type Scope struct {
	Text  string
	Style *Style
}

Scope contains the data of the optional scope of a prefix. If it has a text, it will be printed after the Prefix in brackets.

type SectionPrinter added in v0.3.2 

type SectionPrinter struct {
	Style           *Style
	Level           int
	IndentCharacter string
	TopPadding      int
	BottomPadding   int
}

SectionPrinter prints a new section title. It can be used to structure longer text, or different chapters of your program.

func (*SectionPrinter) Print added in v0.3.2 

func (p *SectionPrinter) Print(a ...interface{}) *TextPrinter

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered.

func (*SectionPrinter) Printf added in v0.3.2 

func (p *SectionPrinter) Printf(format string, a ...interface{}) *TextPrinter

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered.

func (*SectionPrinter) Println added in v0.3.2 

func (p *SectionPrinter) Println(a ...interface{}) *TextPrinter

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered.

func (SectionPrinter) Sprint added in v0.3.2 

func (p SectionPrinter) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string.

func (SectionPrinter) Sprintf added in v0.3.2 

func (p SectionPrinter) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string.

func (SectionPrinter) Sprintln added in v0.3.2 

func (p SectionPrinter) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended.

func (SectionPrinter) WithBottomPadding added in v0.5.0 

func (p SectionPrinter) WithBottomPadding(padding int) *SectionPrinter

WithBottomPadding returns a new SectionPrinter with a specific top padding.

func (SectionPrinter) WithIndentCharacter added in v0.8.0 

func (p SectionPrinter) WithIndentCharacter(char string) *SectionPrinter

WithIndentCharacter returns a new SectionPrinter with a specific IndentCharacter.

func (SectionPrinter) WithLevel added in v0.4.0 

func (p SectionPrinter) WithLevel(level int) *SectionPrinter

WithLevel returns a new SectionPrinter with a specific level.

func (SectionPrinter) WithStyle added in v0.4.0 

func (p SectionPrinter) WithStyle(style *Style) *SectionPrinter

WithStyle returns a new SectionPrinter with a specific style.

func (SectionPrinter) WithTopPadding added in v0.4.0 

func (p SectionPrinter) WithTopPadding(padding int) *SectionPrinter

WithTopPadding returns a new SectionPrinter with a specific top padding.

type Spinner added in v0.1.0 

type Spinner struct {
	Text           string
	Sequence       []string
	Style          *Style
	Delay          time.Duration
	MessageStyle   *Style
	SuccessPrinter TextPrinter
	FailPrinter    TextPrinter
	WarningPrinter TextPrinter
	RemoveWhenDone bool

	IsActive bool
}

Spinner is a loading animation, which can be used if the progress is unknown. It's an animation loop, which can have a text and supports throwing errors or warnings. A TextPrinter is used to display all outputs, after the spinner is done.

func (*Spinner) Fail added in v0.1.0 

func (s *Spinner) Fail(message ...interface{})

Fail displays the fail printer. If no message is given, the text of the spinner will be reused as the default message.

func (*Spinner) GenericStart added in v0.5.0 

func (s *Spinner) GenericStart() (*LivePrinter, error)

GenericStart runs Start, but returns a LivePrinter. This is used for the interface LivePrinter. You most likely want to use Start instead of this in your program.

func (*Spinner) GenericStop added in v0.5.0 

func (s *Spinner) GenericStop() (*LivePrinter, error)

GenericStop runs Stop, but returns a LivePrinter. This is used for the interface LivePrinter. You most likely want to use Stop instead of this in your program.

func (Spinner) Start added in v0.1.0 

func (s Spinner) Start(text ...interface{}) (*Spinner, error)

Start the spinner.

func (*Spinner) Stop added in v0.1.0 

func (s *Spinner) Stop() error

Stop terminates the Spinner immediately. The Spinner will not resolve into anything.

func (*Spinner) Success added in v0.1.0 

func (s *Spinner) Success(message ...interface{})

Success displays the success printer. If no message is given, the text of the spinner will be reused as the default message.

func (*Spinner) UpdateText added in v0.2.0 

func (s *Spinner) UpdateText(text string)

UpdateText updates the message of the active spinner. Can be used live.

func (*Spinner) Warning added in v0.1.0 

func (s *Spinner) Warning(message ...interface{})

Warning displays the warning printer. If no message is given, the text of the spinner will be reused as the default message.

func (Spinner) WithDelay added in v0.1.0 

func (s Spinner) WithDelay(delay time.Duration) *Spinner

WithDelay adds a delay to the spinner.

func (Spinner) WithMessageStyle added in v0.1.0 

func (s Spinner) WithMessageStyle(style *Style) *Spinner

WithMessageStyle adds a style to the spinner message.

func (Spinner) WithRemoveWhenDone added in v0.3.0 

func (s Spinner) WithRemoveWhenDone(b ...bool) *Spinner

WithRemoveWhenDone removes the spinner after it is done.

func (Spinner) WithSequence added in v0.1.0 

func (s Spinner) WithSequence(sequence ...string) *Spinner

WithSequence adds a sequence to the spinner.

func (Spinner) WithStyle added in v0.1.0 

func (s Spinner) WithStyle(style *Style) *Spinner

WithStyle adds a style to the spinner.

func (Spinner) WithText added in v0.1.0 

func (s Spinner) WithText(text string) *Spinner

WithText adds a text to the spinner.

type Style 

type Style []Color

Style is a collection of colors. Can include foreground, background and styling (eg. Bold, Underscore, etc.) colors.

func NewStyle added in v0.0.1 

func NewStyle(colors ...Color) *Style

NewStyle returns a new Style. Accepts multiple colors.

func (Style) Add added in v0.4.0 

func (s Style) Add(styles ...Style) Style

Add styles to the current Style.

func (Style) Code 

func (s Style) Code() string

Code convert to code string. returns like "32;45;3".

func (Style) Print 

func (s Style) Print(a ...interface{})

Print formats using the default formats for its operands and writes to standard output. Spaces are added between operands when neither is a string. It returns the number of bytes written and any write error encountered. Input will be colored with the parent Style.

func (Style) Printf 

func (s Style) Printf(format string, a ...interface{})

Printf formats according to a format specifier and writes to standard output. It returns the number of bytes written and any write error encountered. Input will be colored with the parent Style.

func (Style) Println 

func (s Style) Println(a ...interface{})

Println formats using the default formats for its operands and writes to standard output. Spaces are always added between operands and a newline is appended. It returns the number of bytes written and any write error encountered. Input will be colored with the parent Style.

func (Style) Sprint 

func (s Style) Sprint(a ...interface{}) string

Sprint formats using the default formats for its operands and returns the resulting string. Spaces are added between operands when neither is a string. Input will be colored with the parent Style.

func (Style) Sprintf 

func (s Style) Sprintf(format string, a ...interface{}) string

Sprintf formats according to a format specifier and returns the resulting string. Input will be colored with the parent Style.

func (Style) Sprintln 

func (s Style) Sprintln(a ...interface{}) string

Sprintln formats using the default formats for its operands and returns the resulting string. Spaces are always added between operands and a newline is appended. Input will be colored with the parent Style.

func (Style) String 

func (s Style) String() string

String convert to code string. returns like "32;45;3".

type Table added in v0.5.0 

type Table struct {
	Style          *Style
	HasHeader      bool
	HeaderStyle    *Style
	Separator      string
	SeparatorStyle *Style
	Data           TableData
}

Table is able to render tables.

func (Table) Render added in v0.5.0 

func (p Table) Render() error

Render prints the Table to the terminal.

func (Table) Srender added in v0.5.0 

func (p Table) Srender() (string, error)

Srender renders the Table as a string.

func (Table) WithCSVReader added in v0.5.1 

func (p Table) WithCSVReader(reader *csv.Reader) *Table

WithCSVReader return a new Table with specified Data extracted from CSV.

func (Table) WithData added in v0.5.0 

func (p Table) WithData(data [][]string) *Table

WithData returns a new Table with specific Data.

func (Table) WithHasHeader added in v0.5.0 

func (p Table) WithHasHeader(b ...bool) *Table

WithHasHeader returns a new Table, where the first line is marked as a header.

func (Table) WithHeaderStyle added in v0.5.0 

func (p Table) WithHeaderStyle(style *Style) *Table

WithHeaderStyle returns a new Table with a specific HeaderStyle.

func (Table) WithSeparator added in v0.5.0 

func (p Table) WithSeparator(separator string) *Table

WithSeparator returns a new Table with a specific separator.

func (Table) WithSeparatorStyle added in v0.5.0 

func (p Table) WithSeparatorStyle(style *Style) *Table

WithSeparatorStyle returns a new Table with a specific SeparatorStyle.

func (Table) WithStyle added in v0.5.0 

func (p Table) WithStyle(style *Style) *Table

WithStyle returns a new Table with a specific Style.

type TableData added in v0.5.0 

type TableData [][]string

TableData is the type that contains the data of a Table.

type TextPrinter added in v0.5.0 

type TextPrinter interface {
	// Sprint formats using the default formats for its operands and returns the resulting string.
	// Spaces are added between operands when neither is a string.
	Sprint(a ...interface{}) string

	// Sprintln formats using the default formats for its operands and returns the resulting string.
	// Spaces are always added between operands and a newline is appended.
	Sprintln(a ...interface{}) string

	// Sprintf formats according to a format specifier and returns the resulting string.
	Sprintf(format string, a ...interface{}) string

	// Print formats using the default formats for its operands and writes to standard output.
	// Spaces are added between operands when neither is a string.
	// It returns the number of bytes written and any write error encountered.
	Print(a ...interface{}) *TextPrinter

	// Println formats using the default formats for its operands and writes to standard output.
	// Spaces are always added between operands and a newline is appended.
	// It returns the number of bytes written and any write error encountered.
	Println(a ...interface{}) *TextPrinter

	// Printf formats according to a format specifier and writes to standard output.
	// It returns the number of bytes written and any write error encountered.
	Printf(format string, a ...interface{}) *TextPrinter
}

TextPrinter contains methods to print formatted text to the console or return it as a string.

type Theme added in v0.6.0 

type Theme struct {
	PrimaryStyle            Style
	SecondaryStyle          Style
	HighlightStyle          Style
	InfoMessageStyle        Style
	InfoPrefixStyle         Style
	SuccessMessageStyle     Style
	SuccessPrefixStyle      Style
	WarningMessageStyle     Style
	WarningPrefixStyle      Style
	ErrorMessageStyle       Style
	ErrorPrefixStyle        Style
	FatalMessageStyle       Style
	FatalPrefixStyle        Style
	DescriptionMessageStyle Style
	DescriptionPrefixStyle  Style
	ScopeStyle              Style
	ProgressbarBarStyle     Style
	ProgressbarTitleStyle   Style
	HeaderTextStyle         Style
	HeaderBackgroundStyle   Style
	SpinnerStyle            Style
	SpinnerTextStyle        Style
	TableStyle              Style
	TableHeaderStyle        Style
	TableSeparatorStyle     Style
	SectionStyle            Style
	BulletListTextStyle     Style
	BulletListBulletStyle   Style
	TreeStyle               Style
	TreeTextStyle           Style
	LetterStyle             Style
	DebugMessageStyle       Style
	DebugPrefixStyle        Style
}

Theme for PTerm. Theme contains every Style used in PTerm. You can create own themes for your application or use one of the existing themes.

func (Theme) WithBulletListBulletStyle added in v0.10.0 

func (t Theme) WithBulletListBulletStyle(style Style) Theme

WithBulletListBulletStyle returns a new theme with overridden value.

func (Theme) WithBulletListTextStyle added in v0.10.0 

func (t Theme) WithBulletListTextStyle(style Style) Theme

WithBulletListTextStyle returns a new theme with overridden value.

func (Theme) WithDebugMessageStyle added in v0.9.0 

func (t Theme) WithDebugMessageStyle(style Style) Theme

WithDebugMessageStyle returns a new theme with overridden value.

func (Theme) WithDebugPrefixStyle added in v0.9.0 

func (t Theme) WithDebugPrefixStyle(style Style) Theme

WithDebugPrefixStyle returns a new theme with overridden value.

func (Theme) WithDescriptionMessageStyle added in v0.6.0 

func (t Theme) WithDescriptionMessageStyle(style Style) Theme

WithDescriptionMessageStyle returns a new theme with overridden value.

func (Theme) WithDescriptionPrefixStyle added in v0.6.0 

func (t Theme) WithDescriptionPrefixStyle(style Style) Theme

WithDescriptionPrefixStyle returns a new theme with overridden value.

func (Theme) WithErrorMessageStyle added in v0.6.0 

func (t Theme) WithErrorMessageStyle(style Style) Theme

WithErrorMessageStyle returns a new theme with overridden value.

func (Theme) WithErrorPrefixStyle added in v0.6.0 

func (t Theme) WithErrorPrefixStyle(style Style) Theme

WithErrorPrefixStyle returns a new theme with overridden value.

func (Theme) WithFatalMessageStyle added in v0.6.0 

func (t Theme) WithFatalMessageStyle(style Style) Theme

WithFatalMessageStyle returns a new theme with overridden value.

func (Theme) WithFatalPrefixStyle added in v0.6.0 

func (t Theme) WithFatalPrefixStyle(style Style) Theme

WithFatalPrefixStyle returns a new theme with overridden value.

func (Theme) WithHighlightStyle added in v0.6.0 

func (t Theme) WithHighlightStyle(style Style) Theme

WithHighlightStyle returns a new theme with overridden value.

func (Theme) WithInfoMessageStyle added in v0.6.0 

func (t Theme) WithInfoMessageStyle(style Style) Theme

WithInfoMessageStyle returns a new theme with overridden value.

func (Theme) WithInfoPrefixStyle added in v0.6.0 

func (t Theme) WithInfoPrefixStyle(style Style) Theme

WithInfoPrefixStyle returns a new theme with overridden value.

func (Theme) WithLetterStyle added in v0.8.0 

func (t Theme) WithLetterStyle(style Style) Theme

WithLetterStyle returns a new theme with overridden value.

func (Theme) WithPrimaryStyle added in v0.6.0 

func (t Theme) WithPrimaryStyle(style Style) Theme

WithPrimaryStyle returns a new theme with overridden value.

func (Theme) WithSecondaryStyle added in v0.6.0 

func (t Theme) WithSecondaryStyle(style Style) Theme

WithSecondaryStyle returns a new theme with overridden value.

func (Theme) WithSuccessMessageStyle added in v0.6.0 

func (t Theme) WithSuccessMessageStyle(style Style) Theme

WithSuccessMessageStyle returns a new theme with overridden value.

func (Theme) WithSuccessPrefixStyle added in v0.6.0 

func (t Theme) WithSuccessPrefixStyle(style Style) Theme

WithSuccessPrefixStyle returns a new theme with overridden value.

func (Theme) WithTreeStyle added in v0.9.3 

func (t Theme) WithTreeStyle(style Style) Theme

WithTreeStyle returns a new theme with overridden value.

func (Theme) WithTreeTextStyle added in v0.9.3 

func (t Theme) WithTreeTextStyle(style Style) Theme

WithTreeTextStyle returns a new theme with overridden value.

func (Theme) WithWarningMessageStyle added in v0.6.0 

func (t Theme) WithWarningMessageStyle(style Style) Theme

WithWarningMessageStyle returns a new theme with overridden value.

func (Theme) WithWarningPrefixStyle added in v0.6.0 

func (t Theme) WithWarningPrefixStyle(style Style) Theme

WithWarningPrefixStyle returns a new theme with overridden value.

type Tree added in v0.9.3 

type Tree struct {
	Root                 TreeNode
	TreeStyle            *Style
	TextStyle            *Style
	TopRightCornerString string
	TopRightDownString   string
	HorizontalString     string
	VerticalString       string
	RightDownLeftString  string
	Indent               int
}

Tree is able to render a list.

func (Tree) Render added in v0.9.3 

func (p Tree) Render() error

Render prints the list to the terminal.

func (Tree) Srender added in v0.9.3 

func (p Tree) Srender() (string, error)

Srender renders the list as a string.

func (Tree) WithHorizontalString added in v0.9.3 

func (p Tree) WithHorizontalString(s string) *Tree

WithHorizontalString returns a new list with a specific HorizontalString.

func (Tree) WithIndent added in v0.9.3 

func (p Tree) WithIndent(indent int) *Tree

WithIndent returns a new list with a specific amount of spacing between the levels. Indent must be at least 1.

func (Tree) WithRoot added in v0.9.3 

func (p Tree) WithRoot(root TreeNode) *Tree

WithRoot returns a new list with a specific Root.

func (Tree) WithTextStyle added in v0.9.3 

func (p Tree) WithTextStyle(style *Style) *Tree

WithTextStyle returns a new list with a specific text style.

func (Tree) WithTopRightCornerString added in v0.9.3 

func (p Tree) WithTopRightCornerString(s string) *Tree

WithTopRightCornerString returns a new list with a specific TopRightCornerString.

func (Tree) WithTopRightDownStringOngoing added in v0.9.3 

func (p Tree) WithTopRightDownStringOngoing(s string) *Tree

WithTopRightDownStringOngoing returns a new list with a specific TopRightDownString.

func (Tree) WithTreeStyle added in v0.9.3 

func (p Tree) WithTreeStyle(style *Style) *Tree

WithTreeStyle returns a new list with a specific tree style.

func (Tree) WithVerticalString added in v0.9.3 

func (p Tree) WithVerticalString(s string) *Tree

WithVerticalString returns a new list with a specific VerticalString.

type TreeNode added in v0.9.3 

type TreeNode struct {
	Children []TreeNode
	Text     string
}

TreeNode is used as items in a Tree.

func NewTreeFromLeveledList added in v0.9.3 

func NewTreeFromLeveledList(leveledListItems LeveledList) TreeNode

NewTreeFromLeveledList converts a TreeItems list to a TreeNode and returns it.

Source Files

View all Source files

Directories

Path Synopsis
_examples
bigtext
bulletlist
bulletlist-custom
center
demo
disable-color
header
header-custom
override-default-printers
panel
paragraph
paragraph-custom
prefix
print-basic-text
print-color-fade
print-color-fade-multiple
print-color-rgb
print-with-color
progressbar
section
spinner
table
theme
tree

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