Added pipe based usages.

Author: buraksenyurt

fops/src/main.rs

@@ -5,6 +5,7 @@ use crate::io_ops::*;
 mod data;
 mod game;
 mod io_ops;
+mod std_ops;
 
 fn main() -> std::io::Result<()> {
     let mut classic_games = vec![

fops/src/std_ops.rs

@@ -0,0 +1,108 @@
+use std::io::{self, BufRead, Write};
+
+fn write_to_file() -> io::Result<()> {
+    let mut input = String::new();
+    println!("Please enter some text:");
+
+    io::stdin().read_line(&mut input)?;
+    println!("Your text is: {}", input.trim());
+
+    Ok(())
+}
+
+fn sum() -> io::Result<i32> {
+    let mut input1 = String::new();
+    let mut input2 = String::new();
+
+    println!("Please enter the first number:");
+    io::stdin().read_line(&mut input1)?;
+
+    println!("Second number:");
+    io::stdin().read_line(&mut input2)?;
+
+    let x: i32 = input1.trim().parse().expect("Please enter a number!");
+    let y: i32 = input2.trim().parse().expect("Please enter a number!");
+
+    Ok(x + y)
+}
+
+fn read_loop() -> io::Result<()> {
+    let stdin = io::stdin();
+    let reader = stdin.lock();
+
+    println!("Please enter some text (Ctrl+Z for exit):");
+    for line in reader.lines() {
+        let line = line?;
+        println!("Input: {}", line);
+    }
+
+    Ok(())
+}
+
+/*
+    Çalıştırmak için;
+
+    cat logs.dat | cargo run
+*/
+fn read_from_pipe() -> io::Result<()> {
+    let stdin = io::stdin();
+    let reader = stdin.lock();
+
+    println!("Data is retrieving...");
+    for line in reader.lines() {
+        let line = line?;
+        println!("Data: {}", line);
+    }
+
+    Ok(())
+}
+
+/*
+    Çalıştırmak için;
+
+    cargo run > logs.txt
+*/
+fn write_log() -> io::Result<()> {
+    let stdout = io::stdout();
+    let mut handle = stdout.lock();
+
+    writeln!(handle, "This will be written to a file.")?;
+
+    Ok(())
+}
+
+/*
+    Çalıştırmak için;
+
+    cat logs.dat | cargo run > output_logs.txt
+*/
+fn double_usage() -> io::Result<()> {
+    let stdin = io::stdin();
+    let stdout = io::stdout();
+
+    let reader = stdin.lock();
+    let mut writer = stdout.lock();
+
+    for line in reader.lines() {
+        let line = line?;
+        writeln!(writer, "Data received {}", line)?;
+    }
+    Ok(())
+}
+
+pub fn run() -> io::Result<()> {
+    // write_to_file()?;
+    //
+    // let total = sum()?;
+    // println!("Total: {}", total);
+    //
+    // read_loop()?;
+
+    // read_from_pipe()?;
+
+    // write_log()?;
+
+    double_usage()?;
+
+    Ok(())
+}