60 lines
1.5 KiB
Go
60 lines
1.5 KiB
Go
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// +build !windows
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package cursor
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import (
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"fmt"
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)
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// Up moves the cursor n lines up relative to the current position.
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func Up(n int) {
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fmt.Printf("\x1b[%dA", n)
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height += n
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}
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// Down moves the cursor n lines down relative to the current position.
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func Down(n int) {
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fmt.Printf("\x1b[%dB", n)
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if height-n <= 0 {
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height = 0
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} else {
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height -= n
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}
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}
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// Right moves the cursor n characters to the right relative to the current position.
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func Right(n int) {
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fmt.Printf("\x1b[%dC", n)
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}
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// Left moves the cursor n characters to the left relative to the current position.
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func Left(n int) {
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fmt.Printf("\x1b[%dD", n)
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}
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// HorizontalAbsolute moves the cursor to n horizontally.
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// The position n is absolute to the start of the line.
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func HorizontalAbsolute(n int) {
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n += 1 // Moves the line to the character after n
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fmt.Printf("\x1b[%dG", n)
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}
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// Show the cursor if it was hidden previously.
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// Don't forget to show the cursor at least at the end of your application.
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// Otherwise the user might have a terminal with a permanently hidden cursor, until he reopens the terminal.
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func Show() {
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fmt.Print("\x1b[?25h")
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}
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// Hide the cursor.
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// Don't forget to show the cursor at least at the end of your application with Show.
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// Otherwise the user might have a terminal with a permanently hidden cursor, until he reopens the terminal.
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func Hide() {
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fmt.Print("\x1b[?25l")
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}
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// ClearLine clears the current line and moves the cursor to it's start position.
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func ClearLine() {
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fmt.Print("\x1b[2K")
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}
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