From 6ce4cf769f671c53f05e97357110d4c0ba322eae Mon Sep 17 00:00:00 2001
From: Tycho Sci <tychosci@gmail.com>
Date: Thu, 18 Oct 2012 22:13:01 +0900
Subject: [PATCH] rustdoc: Make markdown_writer::pandoc_writer UTF-8 safe

---
 src/rustdoc/markdown_writer.rs | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/rustdoc/markdown_writer.rs b/src/rustdoc/markdown_writer.rs
index ea559ae2ee6..1ed007def63 100644
--- a/src/rustdoc/markdown_writer.rs
+++ b/src/rustdoc/markdown_writer.rs
@@ -136,13 +136,15 @@ fn readclose(fd: libc::c_int) -> ~str {
     // Copied from run::program_output
     let file = os::fdopen(fd);
     let reader = io::FILE_reader(file, false);
-    let mut buf = ~"";
-    while !reader.eof() {
-        let bytes = reader.read_bytes(4096u);
-        buf += str::from_bytes(bytes);
-    }
+    let buf = io::with_bytes_writer(|writer| {
+        let mut bytes = [mut 0, ..4096];
+        while !reader.eof() {
+            let nread = reader.read(bytes, bytes.len());
+            writer.write(bytes.view(0, nread));
+        }
+    });
     os::fclose(file);
-    return buf;
+    str::from_bytes(buf)
 }
 
 fn generic_writer(+process: fn~(markdown: ~str)) -> Writer {