如何使用户输入（STDIN）在 PERL 中左右移动 - Unix 环境

Question

i'm a newbie in PERL. Whenever i tried to move left or right to delete characters in terminal it shows "^[[D^[[C^[[C^[[D". Is there a way to make User Input (STDIN) to scroll left and right to delete the data in PERL?

i am looking for user to use keyboard arrows for example, to edit or correct what has just been typed without deleting the last entered characters with backspace.

Example code: print "What is your Fav Food?; $food= STDIN;

i want the readline to be flexible to delete the user entries.

Answer 1

STDIN is a LINE input operator. You can change your input until you hit enter.

You probably want one of these: https://www.cs.ait.ac.th/~on/O/oreilly/perl/prog3/ch02_11.htm

Answer 2

What you want is known as input line editing. For that, You can either user some terminal aware perl module for getting user Input ( https://metacpan.org/search?q=module%3ATerm%3A%3AReadline ). Or run your perl script under rlwrap ( https://linux.die.net/man/1/rlwrap ) command.