From 8b063a24d909bfac056668f00513bf92f6f17817 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kodama.kitenet.net>
Date: Wed, 23 Jul 2008 18:57:27 -0400
Subject: [PATCH] case preservation

---
 IkiWiki/Plugin/link.pm | 15 ++++++++++-----
 t/renamepage.t         |  4 +++-
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/IkiWiki/Plugin/link.pm b/IkiWiki/Plugin/link.pm
index 51afaec9e..e20109888 100644
--- a/IkiWiki/Plugin/link.pm
+++ b/IkiWiki/Plugin/link.pm
@@ -11,6 +11,7 @@ sub import { #{{{
 	hook(type => "checkconfig", id => "link", call => \&checkconfig);
 	hook(type => "linkify", id => "link", call => \&linkify);
 	hook(type => "scan", id => "link", call => \&scan);
+	hook(type => "renamepage", id => "link", call => \&renamepage);
 } # }}}
 
 sub checkconfig () { #{{{
@@ -87,13 +88,17 @@ sub renamepage (@) { #{{{
 	my $new=$params{newpage};
 
 	$params{content} =~ s{(?<!\\)$link_regexp}{
-		my $link=$2;
+		my $linktext=$2;
+		my $link=$linktext;
 		if (bestlink($page, $2) eq $old) {
-			if (index($2, "/") == 0) {
-				$link="/$new";
+			$link=$new;
+			if ($linktext =~ m/\/*?[A-Z]/) {
+				# preserve leading cap
+				$link=ucfirst($link);
 			}
-			else {
-				$link=$new;
+			if (index($linktext, "/") == 0) {
+				# absolute link
+				$link="/$link";
 			}
 		}
 		defined $1
diff --git a/t/renamepage.t b/t/renamepage.t
index ce62bf468..b16ca3d23 100755
--- a/t/renamepage.t
+++ b/t/renamepage.t
@@ -1,7 +1,7 @@
 #!/usr/bin/perl
 use warnings;
 use strict;
-use Test::More tests => 11;
+use Test::More tests => 14;
 use Encode;
 
 BEGIN { use_ok("IkiWiki"); }
@@ -34,6 +34,8 @@ is(try("z", "foo" => "bar", "[[xxx]]"), "[[xxx]]"); # unrelated link
 is(try("z", "foo" => "bar", "[[bar]]"), "[[bar]]"); # link already to new page
 is(try("z", "foo" => "bar", "[[foo]]"), "[[bar]]"); # basic conversion to new page name
 is(try("z", "foo" => "bar", "[[/foo]]"), "[[/bar]]"); # absolute link
+is(try("z", "foo" => "bar", "[[Foo]]"), "[[Bar]]"); # preserve case
+is(try("z", "foo" => "bar", "[[/Foo]]"), "[[/Bar]]"); # preserve case w/absolute
 is(try("z", "foo" => "bar", "[[foo]] [[xxx]]"), "[[bar]] [[xxx]]"); # 2 links, 1 converted
 is(try("z", "foo" => "bar", "[[xxx|foo]]"), "[[xxx|bar]]"); # conversion w/text
 is(try("z", "foo" => "bar", "[[foo#anchor]]"), "[[bar#anchor]]"); # with anchor
-- 
2.26.2