golang读取多行输入的文本并停止ctrl + s

Question

How can I read more than one line in golang, console input.

reader := bufio.NewReader(os.Stdin)

fmt.Println("Enter Text:")

text, _ := reader.ReadString('
')

How I must change ReadString(???) to stop reading if the user hit: <kbd>ctrl</kbd>+<kbd>s</kbd> The New Line ( ) must remain a constituent of the input.

Is there some library/framework for that?

Thanks for every help.

Cheers

Answer 1

Here is an answer for Linux (and could work for other *nix platforms)

Ctrl+S is a control character DC3, it means "XOFF, stop sending". If you press Ctrl+S the terminal would freeze.

Ctrl+Q is a control character DC1, it mean "XON, continue sending", it is necessary after Ctrl+S to unfreeze.

To use the Ctrl+S, first disable XON/XOFF with stty -ixon (maybe in in startup script) After disabling XON/XOFF, the sample code is following (DC3 is HEX:13/DEC:19 in ASCII table);

package main

import (
    "bufio"
    "fmt"
    "os"
)

func main() {
    reader := bufio.NewReader(os.Stdin)
    fmt.Println("Enter Text:")
    text, _ := reader.ReadString('\x13')
    fmt.Println(text)
}