From f28fdcd6d8d6ac36c7b6adf6670238426f3cc067 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@80x24.org>
Date: Sat, 2 Oct 2021 11:18:34 +0000
Subject: content_hash: normalize whitespace before hashing addresses

This should prevent some false duplicates.  I noticed this
while implementing "lei mail-diff", and only noticed it when
I implemented the ContentDigestDbg wrapper for mail-diff.
---
 lib/PublicInbox/ContentHash.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/PublicInbox/ContentHash.pm b/lib/PublicInbox/ContentHash.pm
index f6ae9011..bacc9cdd 100644
--- a/lib/PublicInbox/ContentHash.pm
+++ b/lib/PublicInbox/ContentHash.pm
@@ -20,6 +20,7 @@ use Digest::SHA;
 sub digest_addr ($$$) {
 	my ($dig, $h, $v) = @_;
 	$v =~ tr/"//d;
+	$v =~ tr/\r\n\t / /s;
 	$v =~ s/@([a-z0-9\_\.\-\(\)]*([A-Z])\S*)/'@'.lc($1)/ge;
 	utf8::encode($v);
 	$dig->add("$h\0$v\0");
-- 
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