shell 文本编辑器是如何工作的? [英] How do shell text editors work?

问题描述

我对编程还很陌生，但我想知道 vim、emacs、nano 等 shell 文本编辑器如何能够控制命令行窗口.我主要是一名 Windows 程序员，所以可能在 *nix 上有所不同.据我所知，只能将文本打印到控制台，并要求输入.文本编辑器如何在命令行环境中创建可导航、可编辑的窗口?

解决方案

通过使用如下库，进而使用转义字符序列

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I'm fairly new at programming, but I've wondered how shell text editors such as vim, emacs, nano, etc are able to control the command-line window. I'm primarily a Windows programmer, so maybe it's different on *nix. As far as I know, it's only possible to print text to a console, and ask for input. How do text editors create a navigable, editable window in a command line environment?

解决方案

By using libraries such as the following which, in turn, use escape character sequences

NAME
       ncurses - CRT screen handling and optimization package

SYNOPSIS
       #include 

DESCRIPTION
       The  ncurses library routines give the user a terminal-independent 
method of updating character screens with reasonable optimization.  This 
implementation is ‘‘new curses’’ (ncurses) and is the approved replacement 
for 4.4BSD classic curses, which has been discontinued.

[...snip....]

       The ncurses package supports: overall screen, window and pad 
manipulation; output to windows and pads; reading terminal input; control 
over terminal and curses input and output  options;  environment query 
routines; color manipulation; use of soft label keys; terminfo capabilities; 
and access to low-level terminal-manipulation routines.

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