Cleanup examples

examples/bash.rs

@@ -2,7 +2,7 @@ extern crate rexpect;
 use rexpect::error::Error;
 use rexpect::spawn_bash;
 
-fn run() -> Result<(), Error> {
+fn main() -> Result<(), Error> {
     let mut p = spawn_bash(Some(1000))?;
     p.execute("ping 8.8.8.8", "bytes")?;
     p.send_control('z')?;
@@ -18,7 +18,3 @@ fn run() -> Result<(), Error> {
     p.exp_string("packet loss")?;
     Ok(())
 }
-
-fn main() {
-    run().unwrap_or_else(|e| panic!("bash process failed with {}", e));
-}

examples/bash_read.rs

@@ -2,7 +2,7 @@ extern crate rexpect;
 use rexpect::error::Error;
 use rexpect::spawn_bash;
 
-fn run() -> Result<(), Error> {
+fn main() -> Result<(), Error> {
     let mut p = spawn_bash(Some(2000))?;
 
     // case 1: wait until program is done
@@ -33,7 +33,3 @@ fn run() -> Result<(), Error> {
     p.send_control('c')?;
     Ok(())
 }
-
-fn main() {
-    run().unwrap_or_else(|e| panic!("bash process failed with {}", e));
-}

examples/exit_code.rs

@@ -8,7 +8,7 @@ use rexpect::spawn;
 /// cat exited with code 0, all good!
 /// cat exited with code 1
 /// Output (stdout and stderr): cat: /this/does/not/exist: No such file or directory
-fn exit_code_fun() -> Result<(), Error> {
+fn main() -> Result<(), Error> {
     let p = spawn("cat /etc/passwd", Some(2000))?;
     match p.process.wait() {
         Ok(wait::WaitStatus::Exited(_, 0)) => println!("cat exited with code 0, all good!"),
@@ -29,7 +29,3 @@ fn exit_code_fun() -> Result<(), Error> {
 
     Ok(())
 }
-
-fn main() {
-    exit_code_fun().unwrap_or_else(|e| panic!("cat function failed with {}", e));
-}

examples/ftp.rs

@@ -3,7 +3,7 @@ extern crate rexpect;
 use rexpect::error::Error;
 use rexpect::spawn;
 
-fn do_ftp() -> Result<(), Error> {
+fn main() -> Result<(), Error> {
     let mut p = spawn("ftp speedtest.tele2.net", Some(2000))?;
     p.exp_regex("Name \\(.*\\):")?;
     p.send_line("anonymous")?;
@@ -18,7 +18,3 @@ fn do_ftp() -> Result<(), Error> {
     p.exp_eof()?;
     Ok(())
 }
-
-fn main() {
-    do_ftp().unwrap_or_else(|e| panic!("ftp job failed with {}", e));
-}

examples/repl.rs

@@ -25,7 +25,7 @@ fn ed_session() -> Result<PtyReplSession, Error> {
     Ok(ed)
 }
 
-fn do_ed_repl() -> Result<(), Error> {
+fn main() -> Result<(), Error> {
     let mut ed = ed_session()?;
     ed.send_line("a")?;
     ed.send_line("ed is the best editor evar")?;
@@ -37,7 +37,3 @@ fn do_ed_repl() -> Result<(), Error> {
     ed.exp_eof()?;
     Ok(())
 }
-
-fn main() {
-    do_ed_repl().unwrap_or_else(|e| panic!("ed session failed with {}", e));
-}