From 2e30aa481ec8c2773ce054acd39ea5ad377a638e Mon Sep 17 00:00:00 2001
From: Zachary Vance <za3k@za3k.com>
Date: Sat, 7 May 2022 21:57:26 -0400
Subject: [PATCH 1/2] Remove stderr warning message which prints in server log

Fixes #18
---
 index.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/index.php b/index.php
index e1313ac..39fee72 100644
--- a/index.php
+++ b/index.php
@@ -246,6 +246,7 @@ function file_put_contents($n, $d)
 	$page = DEFAULT_PAGE;
 
 $filename = PAGES_PATH . "/$page.txt";
+$text = "";
 
 if ( file_exists($filename) )
 {

From 0c09630fbcb345594bec8366e050e76783f7949c Mon Sep 17 00:00:00 2001
From: Zachary Vance <za3k@za3k.com>
Date: Sat, 7 May 2022 22:11:53 -0400
Subject: [PATCH 2/2] Colorize links to unwritten articles

This is a form of dead link detection, called "red links" in MediaWiki. Links to unwritten articles are displayed in another color (red). This makes it easy for wiki authors to spot articles which need written without clicking through, or spelling errors.
---
 index.css | 4 ++++
 index.php | 8 +++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/index.css b/index.css
index 4443f61..3225c4d 100644
--- a/index.css
+++ b/index.css
@@ -149,6 +149,10 @@ a.tool {
 	color: #eeeeee;
 }
 
+a.missing-link {
+	color: #ba0000;
+}
+
 input.tool {
 	font-size: 11px;
 	color: #000000;
diff --git a/index.php b/index.php
index 39fee72..4b4d5fe 100644
--- a/index.php
+++ b/index.php
@@ -84,7 +84,13 @@
 
 function _handle_links($match)
 {
-	return "<a href=\"" . SELF . VIEW . "/" . htmlentities($match[1]) . "\">" . htmlentities($match[1]) . "</a>";
+	$link_page = $match[1];
+	$link_filename = PAGES_PATH . "/$link_page.txt";
+	$link_page_exists = file_exists($link_filename);
+	if ($link_page_exists)
+		return "<a href=\"" . SELF . VIEW . "/" . htmlentities($link_page) . "\">" . htmlentities($link_page) . "</a>";
+	else
+		return "<a href=\"" . SELF . VIEW . "/" . htmlentities($link_page) . "\" class=\"missing-link\">" . htmlentities($link_page) . "</a>";
 }