zoukankan      html  css  js  c++  java
  • 实现类似于shell中按“向上”,“向下”箭头的功能————readline库

    [转载] 正确编译使用readline库

    The GNU Readline library provides a set of functions for use by applications that allow users to edit command lines as they are typed in. Both Emacs and vi editing modes are available. The Readline library includes additional functions to maintain a list of previously-entered command lines, to recall and perhaps reedit those lines, and perform csh-like history expansion on previous commands.

    This function gives the user the default behaviour of TAB completion: completion on file names. If you do not want Readline to complete on filenames, you can change the binding of the TAB key with rl_bind_key().

    int rl_bind_key (int key, rl_command_func_t *function);

    rl_bind_key() takes two arguments: key is the character that you want to bind, and function is the address of the function to call when key is pressed. Binding TAB to rl_insert() makes TAB insert itself. rl_bind_key() returns non-zero if key is not a valid ASCII character code (between 0 and 255).

    Thus, to disable the default TAB behavior, the following suffices:

    rl_bind_key ('\t', rl_insert);

    This code should be executed once at the start of your program; you might write a function called initialize_readline() which performs this and other desired initializations, such as installing custom completers.

    ------------------------------------------------------------

    GNU Readline Offical Site:
    http://cnswww.cns.cwru.edu/~chet/readline/rltop.html

    If you want to use GNU Readline library in your program:

    * 1st, include <readline/readline.h> and <readline/history.h>
    * 2nd, invoke readline function such as char *readline (const char *prompt); add_history (line);
    * 3rd, link source file with -lreadline -ltermcap arguments


    Trackback: http://tb.donews.net/TrackBack.aspx?PostId=71391

    $ gcc readInput.c
    readline.c:2: fatal error: readline/readline.h: No such file or directory
    compilation terminated.

    If you come across this error, you must install readline dev package
    $ sudo apt-get install libreadline6 libreadline6-dev

  • 相关阅读:
    设计模式--策略模式
    安装PLSQLDeveloper
    oracle11g数据库安装
    tcp和udp的头部信息
    多线程之间实现通讯
    并发编程之多线程线程安全
    多线程快速入门
    帝国cms定时自动执行刷新任务插件DoTimeRepage
    华为S5700交换机初始化和配置SSH和TELNET远程登录方法
    织梦php7数据库备份无结果BUG修复方法
  • 原文地址:https://www.cnblogs.com/pswzone/p/2446796.html
Copyright © 2011-2022 走看看