[PATCH] linkify: support proto://hostname without trailing slash

[Eric Wong <e@80x24.org>]

Sometimes users will write "http://example.com" without the
trailing slash, which every browser and tool I've tested seems
to understand.
---
 lib/PublicInbox/Linkify.pm | 5 +++--
 t/linkify.t                | 9 +++++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/lib/PublicInbox/Linkify.pm b/lib/PublicInbox/Linkify.pm
index 274f382..aa472cd 100644
--- a/lib/PublicInbox/Linkify.pm
+++ b/lib/PublicInbox/Linkify.pm
@@ -16,11 +16,12 @@ use Digest::SHA qw/sha1_hex/;
 
 my $SALT = rand;
 my $LINK_RE = qr{(\()?\b((?:ftps?|https?|nntps?|gopher)://
-		 [\@:\w\.-]+/
+		 [\@:\w\.-]+(?:/
 		 (?:[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%]*)
 		 (?:\?[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%]+)?
 		 (?:\#[a-z0-9\-\._~!\$\&\';\(\)\*\+,;=:@/%\?]+)?
-		 )}xi;
+		 )?
+		)}xi;
 
 sub new { bless {}, $_[0] }
 
diff --git a/t/linkify.t b/t/linkify.t
index a55ed22..f0b3a6d 100644
--- a/t/linkify.t
+++ b/t/linkify.t
@@ -14,6 +14,15 @@ use PublicInbox::Linkify;
 	is($s, qq(<a\nhref="$u">$u</a>.), 'trailing period not in URL');
 }
 
+{
+	my $l = PublicInbox::Linkify->new;
+	my $u = 'http://i-forgot-trailing-slash.example.com';
+	my $s = $u;
+	$s = $l->linkify_1($s);
+	$s = $l->linkify_2($s);
+	is($s, qq(<a\nhref="$u">$u</a>), 'missing trailing slash OK');
+}
+
 # handle URLs in parenthesized statements
 {
 	my $l = PublicInbox::Linkify->new;
-- 
EW