readline库的使用

接口十分简单,readline和addhistory:

#include <stdlib.h>

#include <stdio.h>

#include <unistd.h>

#include <readline/readline.h>

#include <readline/history.h>

int main()

{

char* input, shell_prompt[100];

// Configure readline to auto-complete paths when the tab key is hit.

rl_bind_key(‘\t‘, rl_complete);

for(;;) {

// Create prompt string from user name and current working directory.

snprintf(shell_prompt, sizeof(shell_prompt), "%s:%s $ ", getenv("USER"), getcwd(NULL, 1024));

// Display prompt and read input (n.b. input must be freed after use)...

input = readline(shell_prompt);

// Check for EOF.

if (!input)

break;

// Add input to history.

add_history(input);

// Do stuff...

// Free input.

free(input);

}

}

g++ TestReadLine.cc -lreadline就可以了。