mailsplit: support unescaping mboxrd messages

This will allow us to parse the output of --pretty=mboxrd
and the output of other mboxrd generators.

Signed-off-by: Eric Wong <e@80x24.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

3 files changed, 28 insertions, 0 deletions

diff --git a/t/t5100/0001mboxrd b/t/t5100/0001mboxrd
new file mode 100644
index 0000000000..494ec554b9
--- /dev/null
+++ b/t/t5100/0001mboxrd
@@ -0,0 +1,4 @@
+From the beginning, mbox should have been mboxrd
+>From escaped
+From not mangled but this line should have been escaped
+
diff --git a/t/t5100/0002mboxrd b/t/t5100/0002mboxrd
new file mode 100644
index 0000000000..71343d41f2
--- /dev/null
+++ b/t/t5100/0002mboxrd
@@ -0,0 +1,5 @@
+ >From unchanged
+ From also unchanged
+no trailing space, no escaping necessary and '>' was intended:
+>From
+
diff --git a/t/t5100/sample.mboxrd b/t/t5100/sample.mboxrd
new file mode 100644
index 0000000000..79ad5ae0e7
--- /dev/null
+++ b/t/t5100/sample.mboxrd
@@ -0,0 +1,19 @@
+From mboxrd Mon Sep 17 00:00:00 2001
+From: mboxrd writer <mboxrd@example.com>
+Date: Fri, 9 Jun 2006 00:44:16 -0700
+Subject: [PATCH] a commit with escaped From lines
+
+>From the beginning, mbox should have been mboxrd
+>>From escaped
+From not mangled but this line should have been escaped
+
+From mboxrd Mon Sep 17 00:00:00 2001
+From: mboxrd writer <mboxrd@example.com>
+Date: Fri, 9 Jun 2006 00:44:16 -0700
+Subject: [PATCH 2/2] another with fake From lines
+
+ >From unchanged
+ From also unchanged
+no trailing space, no escaping necessary and '>' was intended:
+>From
+