Organize code into separate files

src/printer.rs

@@ -0,0 +1,48 @@
+extern crate term;
+
+use super::config::Config;
+use super::filematch::FileMatch;
+
+pub trait Printer {
+    fn print(&self, config: &Config, file_match: &FileMatch);
+}
+
+pub struct ColorPrinter;
+
+impl Printer for ColorPrinter {
+    fn print(&self, _config: &Config, mat: &FileMatch) {
+        let mut term = term::stdout().unwrap();
+        term.fg(term::color::YELLOW).unwrap();
+        term.attr(term::Attr::Bold).unwrap();
+        println!("{}:", mat.file_name);
+        term.reset().unwrap();
+
+        for mat in &mat.matches {
+            term.attr(term::Attr::Bold).unwrap();
+            print!("{}: ", mat.line_number);
+            term.reset().unwrap();
+
+            let mut last_position = 0;
+            for (idx, match_index) in mat.match_indexes.iter().enumerate() {
+                print!(
+                    "{}",
+                    mat.text.get(last_position..match_index.start).unwrap()
+                );
+                term.fg(term::color::BRIGHT_RED).unwrap();
+                print!(
+                    "{}",
+                    mat.text.get(match_index.start..match_index.end).unwrap()
+                );
+                term.reset().unwrap();
+
+                if idx == mat.match_indexes.len() - 1 {
+                    println!("{}", mat.text.get(match_index.end..mat.text.len()).unwrap());
+                    last_position = 0;
+                } else {
+                    last_position = match_index.end;
+                }
+            }
+        }
+        println!();
+    }
+}