From 1cb79416c2f0ce254b262dcea84b8a8fe1ab6e44 Mon Sep 17 00:00:00 2001
From: Miraty <miraty+git@antopie.org>
Date: Wed, 31 May 2023 23:12:02 +0200
Subject: [PATCH] Simplify Gemtext>Markdown conversion

---
 mkht.php | 42 ++++++++++++++++--------------------------
 1 file changed, 16 insertions(+), 26 deletions(-)

diff --git a/mkht.php b/mkht.php
index 5f2e757..6c978c2 100755
--- a/mkht.php
+++ b/mkht.php
@@ -104,27 +104,19 @@ foreach ($files_dates as $src_page => $last_mod) {
 		ob_start();
 		eval('?>' . $content);
 		$content = ob_get_clean();
-		file_put_contents($base_filepath . '.gmi', $content);
+		file_put_contents($base_filepath . '.' . $path_parts['extension'], $content);
 
 		// Convert Gemtext to Markdown
 		if ($path_parts['extension'] === 'gmi') {
-			$gmilines = explode(LF, $content);
-
-			foreach ($gmilines as $key => $line) {
-				if (str_starts_with($line, '=>')) {
-					preg_match('/=> +(.[^ ]+)/', $line, $lnUrl);
-					preg_match('/=> +.[^ ]+ +(.+)/', $line, $lnTitle);
-
-					$urlPathParts = pathinfo(parse_url($lnUrl[1], PHP_URL_PATH));
-
-					// .gmi > .md for local links
-					if (!str_contains($lnUrl[1], ':') AND $urlPathParts['extension'] === 'gmi') // If it's a local link
-						$lnUrl[1] = $urlPathParts['dirname'] . '/' . $urlPathParts['filename'] . '.md';
-
-					$gmilines[$key] = '[' . ($lnTitle[1] ?? $lnUrl[1]) . '](' . $lnUrl[1] . ')';
-				}
-			}
-			$content = implode(LF, $gmilines);
+			$content = preg_replace_callback(
+				'/^=>\h*(?<addr>\H+)(:?\h+(?<title>\H+))?$/Dm',
+				function ($matches) {
+					if (!str_contains($matches['addr'], ':') AND str_ends_with($matches['addr'], '.gmi'))
+						$matches['addr'] = substr($matches['addr'], 0, -3) . 'md';
+					return '[' . ($matches['title'] ?? $matches['addr']) . '](' . $matches['addr'] . ')';
+				},
+				$content,
+			);
 			file_put_contents($base_filepath . '.md', $content);
 		}
 
@@ -143,11 +135,9 @@ foreach ($files_dates as $src_page => $last_mod) {
 			exit('pandoc failed.' . PHP_EOL);
 
 		// .md > .html for local links
-		$content = preg_replace('#<a href="(?!.*:)(.*)\.md">#', '<a href="$1.html">', $content);
+		$content = preg_replace('/ href="([^:"]+)\.md"/', ' href="$1.html"', $content);
 
-		$relativePathToRoot = '';
-		for ($i = substr_count(str_replace(SITE, '', $path_parts['dirname']), '/') ; $i > 0 ; $i--)
-			$relativePathToRoot .= '../';
+		$relative_root_path = str_repeat('../', substr_count(str_replace(SITE, '', $path_parts['dirname']), '/'));
 
 		ob_start();
 
@@ -182,12 +172,12 @@ foreach ($files_dates as $src_page => $last_mod) {
 			echo '<meta name="author" content="' . $config['author'] . '">';
 
 		if ($config['announce-feed'])
-			echo '<link rel="alternate" type="application/atom+xml" href="' . $relativePathToRoot . 'feed.atom">' . LF;
+			echo '<link rel="alternate" type="application/atom+xml" href="' . $relative_root_path . 'feed.atom">' . LF;
 
 		if ($config['announce-css']) {
 			if (file_exists(SITE . '/style.css'))
-				echo '<link rel="stylesheet" media="screen" href="' . $relativePathToRoot . 'style.css">' . LF;
-			echo '<link rel="stylesheet" media="screen" href="' . $relativePathToRoot . 'mkht-php.css">' . LF;
+				echo '<link rel="stylesheet" media="screen" href="' . $relative_root_path . 'style.css">' . LF;
+			echo '<link rel="stylesheet" media="screen" href="' . $relative_root_path . 'mkht-php.css">' . LF;
 		}
 
 		if (file_exists(SITE . '/head.inc.html'))
@@ -200,7 +190,7 @@ foreach ($files_dates as $src_page => $last_mod) {
 		if ($config['header']) {
 	?>
 				<header>
-					<a href="./<?= $relativePathToRoot ?>">
+					<a href="./<?= $relative_root_path ?>">
 	<?php
 			if (file_exists(SITE . '/img/logo.webp'))
 				echo '<img src="img/logo.webp" ' . getimagesize(SITE . '/img/logo.webp')[3] . ' alt="' . $config['title'] . '" />';