Add path-separator option.

Example usage: `fd.exe --path-separator /` on windows.

src/app.rs

@@ -207,6 +207,11 @@ pub fn build_app() -> App<'static, 'static> {
                 .hidden_short_help(true),
         )
         .arg(arg("pattern"))
+        .arg(arg("path-separator")
+             .takes_value(true)
+             .long("path-separator")
+             .number_of_values(1),
+        )
         .arg(arg("path").multiple(true))
         .arg(
             arg("search-path")
@@ -249,6 +254,10 @@ fn usage() -> HashMap<&'static str, Help> {
     doc!(h, "absolute-path"
         , "Show absolute instead of relative paths"
         , "Shows the full path starting from the root as opposed to relative paths.");
+    doc!(h, "path-separator"
+        , "Set the path separator to use when printing file paths."
+        , "Set the path separator to use when printing file paths. \
+           A path separator is limited to a single byte.");
     doc!(h, "follow"
         , "Follow symbolic links"
         , "By default, fd does not descend into symlinked directories. Using this flag, symbolic \

src/internal/opts.rs

@@ -75,4 +75,7 @@ pub struct FdOptions {
 
     /// Whether or not to display filesystem errors
     pub show_filesystem_errors: bool,
+
+    /// The separator used to print file paths.
+    pub path_separator: Option<u8>,
 }

src/main.rs

@@ -113,6 +113,17 @@ fn main() {
         _ => atty::is(Stream::Stdout),
     };
 
+    let path_separator: Option<u8> = match matches.value_of("path-separator") {
+        Some(sep_str) => {
+            let sep = sep_str.as_bytes();
+            if sep.len() != 1 {
+                print_error_and_exit!("'{}' is not a valid path separator. See 'fd --help'.", sep_str);
+            }
+            Some(sep[0])
+        },
+        None => None,
+    };
+
     #[cfg(windows)]
     let colored_output = colored_output && ansi_term::enable_ansi_support().is_ok();
 
@@ -243,6 +254,7 @@ fn main() {
         size_constraints: size_limits,
         time_constraints,
         show_filesystem_errors: matches.is_present("show-errors"),
+        path_separator,
     };
 
     match RegexBuilder::new(&pattern_regex)

src/output.rs

@@ -67,7 +67,21 @@ fn print_entry_colorized(
             .map(Style::to_ansi_term_style)
             .unwrap_or(default_style);
 
-        write!(stdout, "{}", style.paint(component.to_string_lossy()))?;
+        let path_string = component.to_string_lossy();
+
+        match config.path_separator {
+            None => write!(stdout, "{}", style.paint(path_string))?,
+            Some(sep) => {
+                let mut path_bytes = path_string.as_bytes().to_vec();
+                for b in &mut path_bytes {
+                    if *b == b'/' || (cfg!(windows) && *b == b'\\') {
+                        *b = sep;
+                    }
+                }
+                let path_string = String::from_utf8_lossy(&path_bytes);
+                write!(stdout, "{}", style.paint(path_string))?
+            }
+        }
 
         if wants_to_quit.load(Ordering::Relaxed) {
             writeln!(stdout)?;