Golang函数类似于getchar [英] Golang function similar to getchar
问题描述
是否有类似 getchar
的功能可以在控制台中处理Tab键?
Is there function similar to getchar
able to handle tab press in console? I want to make some sort of completion in my console app.
推荐答案
C的 getchar()
example:
C's getchar()
example:
#include <stdio.h>
void main()
{
char ch;
ch = getchar();
printf("Input Char Is :%c",ch);
}
等效:
package main
import (
"bufio"
"fmt"
"os"
)
func main() {
reader := bufio.NewReader(os.Stdin)
input, _ := reader.ReadString('\n')
fmt.Printf("Input Char Is : %v", string([]byte(input)[0]))
// fmt.Printf("You entered: %v", []byte(input))
}
线仅显示当您按选项卡
第一个元素是U + 0009('CHARACTER TABULATION')。
The last commented line just shows that when you press tab
the first element is U+0009 ('CHARACTER TABULATION').
但是对于你的需要(检测标签)C的 getchar()
是不合适的,因为它需要用户命中输入。你需要的是像@miku所提到的ncurses的getch()/ readline / jLine。有了这些,你实际上等待一个单一的键击。
However for your needs (detecting tab) C's getchar()
is not suitable as it requires the user to hit enter. What you need is something like ncurses' getch()/ readline/ jLine as mentioned by @miku. With these, you actually wait for a single keystroke.
因此,您有多种选择:
-
使用
ncurses
/readline
绑定,例如 https://code.google.com/p/goncurses/ 或类似的网址,例如 https://github.com/nsf/termbox
Use
ncurses
/readline
binding, for example https://code.google.com/p/goncurses/ or equivalent like https://github.com/nsf/termbox
Roll your own see http://play.golang.org/p/plwBIIYiqG for starting point
使用 os.Exec
运行stty或jLine。
use os.Exec
to run stty or jLine.
refs:
https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/zhBE5MH4n-Q
https://groups.google.com/forum/?fromgroups =#!topic / golang-nuts / S9AO_kHktiY
https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/icMfYF8wJCk
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