получить строку от пользователя с редактированием (get a line from a user with editing)
Описание (Description)
readline will read a line from the terminal and return it, using
prompt as a prompt. If prompt is NULL or the empty string, no
prompt is issued. The line returned is allocated with malloc(3);
the caller must free it when finished. The line returned has the
final newline removed, so only the text of the line remains.
readline offers editing capabilities while the user is entering
the line. By default, the line editing commands are similar to
those of emacs. A vi-style line editing interface is also
available.
This manual page describes only the most basic use of readline.
Much more functionality is available; see The GNU Readline
Library and The GNU History Library for additional information.
