From 2f163b90c745491a995dfdbe78464c64a536ec54 Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Mon, 24 Oct 2011 16:42:22 +0000
Subject: Added some more docs.

---
 src/bzip2.h         | 2 ++
 src/deflate.h       | 4 ++++
 src/doxy/groups.dox | 5 +++++
 src/lzma.h          | 3 +++
 4 files changed, 14 insertions(+)

diff --git a/src/bzip2.h b/src/bzip2.h
index 0b5140d..9a8d172 100644
--- a/src/bzip2.h
+++ b/src/bzip2.h
@@ -15,8 +15,10 @@
 namespace Bu
 {
 	/**
+	 * Provides BZip2 type compression and decompression.
 	 *
 	 *@ingroup Streams
+	 *@ingroup Compression
 	 */
 	class BZip2 : public Bu::Filter
 	{
diff --git a/src/deflate.h b/src/deflate.h
index 20d609a..34e8657 100644
--- a/src/deflate.h
+++ b/src/deflate.h
@@ -15,8 +15,12 @@
 namespace Bu
 {
 	/**
+	 * Provides Deflate (LZ77) support via zlib.  This provides zlib, raw, and
+	 * gzip stream types.  By default it will autodetect the input type and
+	 * encode into a raw deflate stream.
 	 *
 	 *@ingroup Streams
+	 *@ingroup Compression
 	 */
 	class Deflate : public Bu::Filter
 	{
diff --git a/src/doxy/groups.dox b/src/doxy/groups.dox
index 479186a..6b7cd57 100644
--- a/src/doxy/groups.dox
+++ b/src/doxy/groups.dox
@@ -29,3 +29,8 @@
  *@defgroup Streams Streams
  * Streams are for data.
  */
+
+/**
+ *@defgroup Compression Compression
+ * Filters that give access to common compression libraries.
+ */
diff --git a/src/lzma.h b/src/lzma.h
index 21da6e8..090da8d 100644
--- a/src/lzma.h
+++ b/src/lzma.h
@@ -15,8 +15,11 @@
 namespace Bu
 {
 	/**
+	 * Provides XZ compression and decompression, both LZMA1 (LzmaAlone) as
+	 * well as the newer LZMA2 (xz) format.  This uses .xz by default.
 	 *
 	 *@ingroup Streams
+	 *@ingroup Compression
 	 */
 	class Lzma : public Bu::Filter
 	{
-- 
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