From 0c117eb8a84be36bec02e5e6011d3d33f3569b82 Mon Sep 17 00:00:00 2001
From: Steve Klabnik <steve@steveklabnik.com>
Date: Sun, 27 Sep 2015 23:29:07 -0400
Subject: [PATCH] initial work

---
 src/expand/expand.rs     | 6 +-----
 src/fmt/parasplit.rs     | 5 ++---
 src/stdbuf/stdbuf.rs     | 4 ++--
 src/tr/tr.rs             | 1 -
 src/unexpand/unexpand.rs | 6 +-----
 5 files changed, 6 insertions(+), 16 deletions(-)

diff --git a/src/expand/expand.rs b/src/expand/expand.rs
index 09bf427b1..3098b87e1 100644
--- a/src/expand/expand.rs
+++ b/src/expand/expand.rs
@@ -1,6 +1,4 @@
 #![crate_name = "expand"]
-#![feature(unicode)]
-
 /*
  * This file is part of the uutils coreutils package.
  *
@@ -14,14 +12,12 @@
 
 extern crate getopts;
 extern crate libc;
-extern crate rustc_unicode;
 extern crate unicode_width;
 
 use std::fs::File;
 use std::io::{stdin, stdout, BufRead, BufReader, BufWriter, Read, Write};
 use std::iter::repeat;
 use std::str::from_utf8;
-use rustc_unicode::str::utf8_char_width;
 use unicode_width::UnicodeWidthChar;
 
 #[path = "../common/util.rs"]
@@ -177,7 +173,7 @@ fn expand(options: Options) {
 
             while byte < buf.len() {
                 let (ctype, cwidth, nbytes) = if options.uflag {
-                    let nbytes = utf8_char_width(buf[byte]);
+                    let nbytes = UnicodeWidthChar::width(buf[byte] as char).unwrap_or(0);
 
                     if byte + nbytes > buf.len() {
                         // don't overrun buffer because of invalid UTF-8
diff --git a/src/fmt/parasplit.rs b/src/fmt/parasplit.rs
index 155edf6c2..01627f24a 100644
--- a/src/fmt/parasplit.rs
+++ b/src/fmt/parasplit.rs
@@ -11,7 +11,6 @@ use std::iter::Peekable;
 use std::io::{BufRead, Lines};
 use std::slice::Iter;
 use std::str::CharRange;
-use rustc_unicode::str::UnicodeStr;
 use unicode_width::UnicodeWidthChar;
 use FileOrStdReader;
 use FmtOptions;
@@ -157,7 +156,7 @@ impl<'a> Iterator for FileLines<'a> {
         // emit a blank line
         // Err(true) indicates that this was a linebreak,
         // which is important to know when detecting mail headers
-        if n.is_whitespace() {
+        if n.chars().all(|c| c.is_whitespace()) {
             return Some(Line::NoFormatLine("\n".to_string(), true));
         }
 
@@ -166,7 +165,7 @@ impl<'a> Iterator for FileLines<'a> {
         let (pmatch, poffset) = self.match_prefix(&n[..]);
         if !pmatch {
             return Some(Line::NoFormatLine(n, false));
-        } else if n[poffset + self.opts.prefix.len()..].is_whitespace() {
+        } else if n[poffset + self.opts.prefix.len()..].chars().all(|c| c.is_whitespace()) {
             // if the line matches the prefix, but is blank after,
             // don't allow lines to be combined through it (that is,
             // treat it like a blank line, except that since it's
diff --git a/src/stdbuf/stdbuf.rs b/src/stdbuf/stdbuf.rs
index 0024ef72d..ecb30fa76 100644
--- a/src/stdbuf/stdbuf.rs
+++ b/src/stdbuf/stdbuf.rs
@@ -227,7 +227,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
     opts.optflag("", "version", "output version information and exit");
 
     let mut options = ProgramOptions {stdin: BufferType::Default, stdout: BufferType::Default, stderr: BufferType::Default};
-    let mut command_idx = -1;
+    let mut command_idx: i32 = -1;
     for i in 1 .. args.len()+1 {
         match parse_options(&args[1 .. i], &mut options, &opts) {
             Ok(OkMsg::Buffering) => {
@@ -252,7 +252,7 @@ pub fn uumain(args: Vec<String>) -> i32 {
     let ref command_name = args[command_idx as usize];
     let mut command = Command::new(command_name);
     let (preload_env, libstdbuf) = get_preload_env();
-    command.args(&args[(command_idx as usize)+ 1 ..]).env(preload_env, libstdbuf);
+    command.args(&args[(command_idx as usize) + 1 ..]).env(preload_env, libstdbuf);
     set_command_env(&mut command, "_STDBUF_I", options.stdin);
     set_command_env(&mut command, "_STDBUF_O", options.stdout);
     set_command_env(&mut command, "_STDBUF_E", options.stderr);
diff --git a/src/tr/tr.rs b/src/tr/tr.rs
index a95fc9460..7ec6627ff 100644
--- a/src/tr/tr.rs
+++ b/src/tr/tr.rs
@@ -1,6 +1,5 @@
 #![crate_name = "tr"]
 #![feature(io)]
-
 /*
  * This file is part of the uutils coreutils package.
  *
diff --git a/src/unexpand/unexpand.rs b/src/unexpand/unexpand.rs
index af138dcef..83bae7fc7 100644
--- a/src/unexpand/unexpand.rs
+++ b/src/unexpand/unexpand.rs
@@ -1,6 +1,4 @@
 #![crate_name = "unexpand"]
-#![feature(unicode)]
-
 /*
  * This file is part of the uutils coreutils package.
  *
@@ -14,13 +12,11 @@
 
 extern crate getopts;
 extern crate libc;
-extern crate rustc_unicode;
 extern crate unicode_width;
 
 use std::fs::File;
 use std::io::{stdin, stdout, BufRead, BufReader, BufWriter, Read, Stdout, Write};
 use std::str::from_utf8;
-use rustc_unicode::str::utf8_char_width;
 use unicode_width::UnicodeWidthChar;
 
 #[path = "../common/util.rs"]
@@ -210,7 +206,7 @@ fn unexpand(options: Options) {
                 }
 
                 let (ctype, cwidth, nbytes) = if options.uflag {
-                    let nbytes = utf8_char_width(buf[byte]);
+                    let nbytes = UnicodeWidthChar::width(buf[byte] as char).unwrap_or(0);
 
                     // figure out how big the next char is, if it's UTF-8
                     if byte + nbytes > buf.len() {