implemented writing to file

src/main.rs

@@ -1,3 +1,5 @@
+#![feature(file_create_new)]
+
 use clap::Parser;
 use crate::ascii_manipulation::*;
 use crate::cli::Cli;

src/output.rs

@@ -1,4 +1,7 @@
+use std::fs::File;
+use std::io::Write;
 use std::path::PathBuf;
+use log::error;
 use crate::model_rgb_ascii::Ascii;
 
 //todo: take into consideration the in_colour flag
@@ -11,6 +14,13 @@ pub fn print_terminal(art: Vec<Vec<Ascii>>, in_colour: bool) {
     }
 }
 
-pub fn print_file(ascii: Vec<Vec<Ascii>>, out: PathBuf) {
-    //todo: this
+pub fn print_file(art: Vec<Vec<Ascii>>, out: PathBuf) -> std::io::Result<()> {
+    let mut file = File::create_new(out)?;
+    for line in art {
+        for ascii in line {
+            write!(file, "{}", ascii.char)?;
+        }
+        writeln!(file)?;
+    }
+    Ok(())
 }