Added tag filtering and RSS feed

2026-08-13 19:31:59 -05:00
parent 2b2ab3a115
commit afebcae714
5 changed files with 217 additions and 82 deletions
--- a/posts/posts.php
+++ b/posts/posts.php
@@ -0,0 +1,68 @@
+<?php
+
+function parseFrontMatter($raw) {
+    if (preg_match('/^---\r?\n(.+?)\r?\n---\r?\n(.*)$/s', $raw, $m)) {
+        $meta = [];
+        foreach (preg_split('/\r?\n/', $m[1]) as $line) {
+            if (strpos($line, ':') === false) continue;
+            [$key, $value] = explode(':', $line, 2);
+            $meta[trim($key)] = trim($value, " \t\"'");
+        }
+        return [$meta, $m[2]];
+    }
+    return [[], $raw];
+}
+
+function makeExcerpt($body, $length = 220) {
+    $text = preg_replace('/```.*?```/s', '', $body);   // code blocks
+    $text = preg_replace('/[#>*_`~\[\]]/', '', $text);  // markdown symbols
+    $text = preg_replace('/\(.*?\)/', '', $text);       // link targets
+    $text = preg_replace('/\s+/', ' ', $text);          // collapse whitespace
+    $text = trim($text);
+    if (mb_strlen($text) > $length) {
+        $text = mb_substr($text, 0, $length) . '…';
+    }
+    return $text;
+}
+
+function getPosts($dir) {
+    $skip = ['.', '..', 'list.php', 'feed.php', 'posts.php'];
+    $files = array_diff(scandir($dir), $skip);
+
+    $posts = [];
+    foreach ($files as $file) {
+        $ext = strtolower(pathinfo($file, PATHINFO_EXTENSION));
+        if (!in_array($ext, ['html', 'md'])) continue;
+
+        $path = $dir . '/' . $file;
+        $fallbackTitle = ucwords(str_replace(['-', '_'], ' ', pathinfo($file, PATHINFO_FILENAME)));
+        $created = filectime($path);
+
+        $meta = [];
+        $body = '';
+        if ($ext === 'md') {
+            $raw = file_get_contents($path);
+            [$meta, $body] = parseFrontMatter($raw);
+        }
+
+        $title = $meta['title'] ?? $fallbackTitle;
+        $date  = isset($meta['date']) ? strtotime($meta['date']) : $created;
+        $tags  = isset($meta['tags']) && trim($meta['tags']) !== ''
+            ? array_map('trim', explode(',', $meta['tags']))
+            : [];
+
+        $posts[] = [
+            'file'    => $file,
+            'title'   => $title,
+            'type'    => $ext,
+            'created' => $date ?: $created,
+            'date'    => date('F j, Y', $date ?: $created),
+            'tags'    => $tags,
+            'excerpt' => $body ? makeExcerpt($body) : '',
+        ];
+    }
+
+    usort($posts, fn($a, $b) => $b['created'] - $a['created']); // newest first
+
+    return $posts;
+}