Fix output containing escaped chars

Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "re"
+name = "sd"
 version = "0.1.0"
 edition = "2018"
 authors = ["Gregory <gregory.mkv@gmail.com>"]
@@ -13,6 +13,7 @@ categories = ["command-line-utilities", "text-processing", "development-tools"]
 [dependencies]
 clap = "2.32.0"
 regex = "1.1.0"
+unescape = "0.1.0"
 
 [profile.release]
 opt-level = 3

src/app.rs

@@ -1,4 +1,4 @@
-use {crate::{Error,Stream,Source}};
+use crate::{Error, Source, Stream};
 
 const VERSION: &'static str = env!("CARGO_PKG_VERSION");
 
@@ -7,7 +7,7 @@ pub(crate) struct App;
 impl App {
     pub(crate) fn run() -> Result<(), Error> {
         use clap;
-        let app = clap::App::new("re")
+        let app = clap::App::new("sd")
             .version(VERSION)
             .setting(clap::AppSettings::ColoredHelp)
             .setting(clap::AppSettings::NextLineHelp)

src/error.rs

@@ -2,7 +2,7 @@ pub(crate) struct Error {
     // low-level cause, used only for debugging
     cause: String,
     // user-facing error output
-    description: String,
+    message: String,
 }
 
 impl<T> From<T> for Error
@@ -14,19 +14,19 @@ where
             cause: err
                 .source()
                 .map_or_else(|| "N/A".to_string(), |e| e.to_string()),
-            description: format!("{}", err),
+            message: format!("{}", err),
         }
     }
 }
 
 impl std::fmt::Display for Error {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        write!(f, "{}", self.description)
+        write!(f, "{}", self.message)
     }
 }
 
 impl std::fmt::Debug for Error {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        write!(f, "Error: {}\nDetails: {}", self.description, self.cause)
+        write!(f, "Error: {}\nDetails: {}", self.message, self.cause)
     }
 }

src/input.rs

@@ -1,4 +1,7 @@
-use {crate::Error, std::{fs::File, io::prelude::*}};
+use {
+    crate::{utils, Error},
+    std::{fs::File, io::prelude::*},
+};
 
 pub(crate) enum Source {
     Stdin,
@@ -31,7 +34,6 @@ impl Source {
             }
         }
     }
-
 }
 
 pub(crate) struct Stream {
@@ -50,11 +52,12 @@ impl Stream {
         replace_with: &str,
     ) -> Result<(), crate::Error> {
         if is_regex {
-            self.data = regex::Regex::new(look_for)?
+            let replaced = regex::Regex::new(look_for)?
                 .replace_all(&self.data, replace_with)
-                .to_string()
+                .to_string();
+            self.data = utils::unescape(&replaced).unwrap_or_else(|| replaced);
         } else {
-            self.data = self.data.replace(look_for, replace_with)
+            self.data = self.data.replace(look_for, replace_with);
         }
         Ok(())
     }
@@ -64,9 +67,7 @@ impl Stream {
     // Otherwise, pipe to stdout.
     pub(crate) fn output(self, source: &Source) -> Result<(), crate::Error> {
         match source {
-            Source::File(path) => {
-                Ok(std::fs::write(path, self.data)?)
-            },
+            Source::File(path) => Ok(std::fs::write(path, self.data)?),
             Source::Stdin => {
                 let stdout = std::io::stdout();
                 let mut handle = stdout.lock();

src/main.rs

@@ -1,6 +1,7 @@
 mod app;
 mod error;
 mod input;
+pub(crate) mod utils;
 
 pub(crate) use {
     crate::error::Error,

src/utils.rs

@@ -1 +1,4 @@
-
+pub(crate) fn unescape(s: &str) -> Option<String> {
+    use unescape::unescape;
+    unescape(s)
+}