From d05afa50e697c95b163a563ab08905a59a5defea Mon Sep 17 00:00:00 2001
From: koichik <koichik@improvement.jp>
Date: Sun, 10 Jul 2011 02:04:56 +0900
Subject: [PATCH] Doc improvements

Fixes #297.
---
 doc/api/buffers.markdown | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/api/buffers.markdown b/doc/api/buffers.markdown
index 6438d672112..b8e3e912f99 100644
--- a/doc/api/buffers.markdown
+++ b/doc/api/buffers.markdown
@@ -16,6 +16,9 @@ method.  Here are the different string encodings;
 
 * `'ascii'` - for 7 bit ASCII data only.  This encoding method is very fast, and will
 strip the high bit if set.
+Note that this encoding converts a null character (`'\0'` or `'\u0000'`) into
+`0x20` (character code of a space). If you want to convert a null character
+into `0x00`, you should use `'utf8'`.
 
 * `'utf8'` - Multi byte encoded Unicode characters.  Many web pages and other document formats use UTF-8.