Implemented icon rendering

src/output/icons.rs

@@ -5,6 +5,7 @@ use term_grid as tg;
 use fs::File;
 use style::Colours;
 use output::file_name::FileStyle;
+use output::cell::DisplayWidth;
 
 
 #[derive(PartialEq, Debug, Copy, Clone)]
@@ -38,11 +39,12 @@ impl<'a> Render<'a> {
         grid.reserve(self.files.len());
 
         for file in self.files.iter() {
+            let file_icon = icon(&file);
             let filename = self.style.for_file(file, self.colours).paint();
-            let width = filename.width();
+            let width = DisplayWidth::from(2) + filename.width();
 
             grid.add(tg::Cell {
-                contents:  format!("<>{}", filename.strings().to_string()),
+                contents:  format!("{} {}", file_icon, filename.strings().to_string()),
                 width:     *width,
             });
         }
@@ -62,3 +64,82 @@ impl<'a> Render<'a> {
         }
     }
 }
+
+fn icon(file: &File) -> char {
+    if file.is_directory() { '\u{f115}' }
+    else { 
+        // possible unnecessary clone
+        if let Some(ext) = file.ext.clone() {
+            match ext.as_str() {
+                "ai" => '\u{e7b4}',
+                "android" => '\u{e70e}',
+                "apple" => '\u{f179}',
+                "audio" => '\u{f001}',
+                "avro" => '\u{e60b}',
+                "c" => '\u{e61e}',
+                "clj" => '\u{e768}',
+                "coffee" => '\u{f0f4}',
+                "conf" => '\u{e615}',
+                "cpp" => '\u{e61d}',
+                "css" => '\u{e749}',
+                "d" => '\u{e7af}',
+                "dart" => '\u{e798}',
+                "db" => '\u{f1c0}',
+                "diff" => '\u{f440}',
+                "doc" => '\u{f1c2}',
+                "ebook" => '\u{e28b}',
+                "env" => '\u{f462}',
+                "epub" => '\u{e28a}',
+                "erl" => '\u{e7b1}',
+                "font" => '\u{f031}',
+                "gform" => '\u{f298}',
+                "git" => '\u{f1d3}',
+                "go" => '\u{e626}',
+                "hs" => '\u{e777}',
+                "html" => '\u{f13b}',
+                "image" => '\u{f1c5}',
+                "iml" => '\u{e7b5}',
+                "java" => '\u{e204}',
+                "js" => '\u{e74e}',
+                "json" => '\u{e60b}',
+                "jsx" => '\u{e7ba}',
+                "less" => '\u{e758}',
+                "log" => '\u{f18d}',
+                "lua" => '\u{e620}',
+                "md" => '\u{f48a}',
+                "mustache" => '\u{e60f}',
+                "npmignore" => '\u{e71e}',
+                "pdf" => '\u{f1c1}',
+                "php" => '\u{e73d}',
+                "pl" => '\u{e769}',
+                "ppt" => '\u{f1c4}',
+                "psd" => '\u{e7b8}',
+                "py" => '\u{e606}',
+                "r" => '\u{f25d}',
+                "rb" => '\u{e21e}',
+                "rdb" => '\u{e76d}',
+                "rss" => '\u{f09e}',
+                "rubydoc" => '\u{e73b}',
+                "sass" => '\u{e603}',
+                "scala" => '\u{e737}',
+                "shell" => '\u{f489}',
+                "sqlite3" => '\u{e7c4}',
+                "styl" => '\u{e600}',
+                "tex" => '\u{e600}',
+                "ts" => '\u{e628}',
+                "twig" => '\u{e61c}',
+                "txt" => '\u{f15c}',
+                "video" => '\u{f03d}',
+                "vim" => '\u{e62b}',
+                "windows" => '\u{f17a}',
+                "xls" => '\u{f1c3}',
+                "xml" => '\u{e619}',
+                "yml" => '\u{f481}',
+                "zip" => '\u{f410}',
+                _ => '\u{f15b}'
+            }
+        } else {
+            '\u{f15b}'
+        }
+    }
+}