Examples

Basic usage

use rexpect::spawn;use rexpect::error::*;fndo_ftp() ->Result<(),Error>{letmut p =spawn("ftp speedtest.tele2.net",Some(30_000))?;    p.exp_regex("Name\\(.*\\):")?;    p.send_line("anonymous")?;    p.exp_string("Password")?;    p.send_line("test")?;    p.exp_string("ftp>")?;    p.send_line("cd upload")?;    p.exp_string("successfully changed.\r\nftp>")?;    p.send_line("pwd")?;    p.exp_regex("[0-9]+\"/upload\"")?;    p.send_line("exit")?;    p.exp_eof()?;Ok(())}fnmain(){do_ftp().unwrap_or_else(|e|panic!("ftp job failed with {}", e));}

Example with bash and reading from programs

use rexpect::spawn_bash;use rexpect::error::*;fndo_bash() ->Result<(),Error>{letmut p =spawn_bash(Some(2000))?;// case 1: wait until program is done    p.send_line("hostname")?;let hostname = p.read_line()?;    p.wait_for_prompt()?;// go sure `hostname` is really doneprintln!("Current hostname: {}", hostname);// case 2: wait until done, only extract a few infos    p.send_line("wc /etc/passwd")?;// `exp_regex` returns both string-before-match and match itself, discard firstlet(_, lines) = p.exp_regex("[0-9]+")?;let(_, words) = p.exp_regex("[0-9]+")?;let(_, bytes) = p.exp_regex("[0-9]+")?;    p.wait_for_prompt()?;// go sure `wc` is really doneprintln!("/etc/passwd has {} lines, {} words, {} chars", lines, words, bytes);// case 3: read while program is still executing    p.execute("ping 8.8.8.8","bytes of data")?;// returns when it sees "bytes of data" in outputfor _in0..5{// times out if one ping takes longer than 2slet(_, duration) = p.exp_regex("[0-9. ]+ ms")?;println!("Roundtrip time: {}", duration);}    p.send_control('c')?;Ok(())}fnmain(){do_bash().unwrap_or_else(|e|panic!("bash job failed with {}", e));}

Example with bash and job control

use rexpect::spawn_bash;use rexpect::error::*;fndo_bash_jobcontrol() ->Result<(),Error>{letmut p =spawn_bash(Some(1000))?;    p.execute("ping 8.8.8.8","bytes of data")?;    p.send_control('z')?;    p.wait_for_prompt()?;// bash writes 'ping 8.8.8.8' to stdout again to state which job was put into background    p.execute("bg","ping 8.8.8.8")?;    p.wait_for_prompt()?;    p.send_line("sleep 0.5")?;    p.wait_for_prompt()?;// bash writes 'ping 8.8.8.8' to stdout again to state which job was put into foreground    p.execute("fg","ping 8.8.8.8")?;    p.send_control('c')?;    p.exp_string("packet loss")?;Ok(())}fnmain(){do_bash_jobcontrol().unwrap_or_else(|e|panic!("bash with job control failed with {}", e));}

License

Contribution