Rebuild article system

lib/front.php

@@ -0,0 +1,46 @@
+<?php
+function extractMeta($directory) {
+    $metaData = [];
+
+    if (!is_dir($directory)) {
+        throw new Exception("Directory not found: $directory");
+    }
+
+    foreach (new DirectoryIterator($directory) as $file) {
+        if ($file->isFile() && (
+              $file->getExtension() === 'md' || 
+              $file->getExtension() === 'php'
+        )) {
+            $contents = file_get_contents($file->getPathname());
+
+            // Extract title and image from the front matter
+            if (preg_match('/^-{3,}\s*(.*?)\s*-{3,}/ms', $contents, $matches)) {
+                $frontMatter = $matches[1];
+                
+                // Extract title
+                preg_match('/title:\s*(.*?)\s*$/m', $frontMatter, $titleMatch);
+                $title = trim($titleMatch[1] ?? '');
+
+                // Extract image
+                preg_match('/image:\s*(.*?)\s*$/m', $frontMatter, $imageMatch);
+                $image = trim($imageMatch[1] ?? '');
+
+                $metaData[$file->getFilename()] = [
+                    'title' => $title,
+                    'image' => $image,
+                ];
+            }
+        }
+    }
+
+    return $metaData;
+}
+
+// Test the function
+try {
+    $directory = __DIR__ ;
+    $meta = extractMeta($directory);
+    print_r($meta);
+} catch (Exception $e) {
+    echo "Error: " . $e->getMessage();
+}

lib/render_markdown.php

@@ -0,0 +1,36 @@
+<?php
+use League\CommonMark\Environment\Environment;
+use League\CommonMark\MarkdownConverter;
+use League\CommonMark\Extension\CommonMark\CommonMarkCoreExtension;
+use League\CommonMark\Extension\GithubFlavoredMarkdownExtension;
+use League\CommonMark\Extension\FrontMatter\FrontMatterExtension;
+use League\CommonMark\Extension\FrontMatter\Output\RenderedContentWithFrontMatter;
+use Symfony\Component\Yaml\Yaml;
+
+
+function render_markdown($file) {
+  // Set up the environment with FrontMatter and GFM support
+  $environment = new Environment([]);
+  $environment->addExtension(new CommonMarkCoreExtension());
+  $environment->addExtension(new GithubFlavoredMarkdownExtension());
+  $environment->addExtension(new FrontMatterExtension());
+
+  $converter = new MarkdownConverter($environment);
+
+  $markdownText = file_get_contents($file);
+  // Convert markdown and extract front matter
+  /** @var RenderedContentWithFrontMatter $result */
+  $result = $converter->convert($markdownText);
+
+  // Parse YAML front matter
+  if ($result instanceof RenderedContentWithFrontMatter) {
+    $frontMatter = $result->getFrontMatter();
+  }
+  $html = $result->getContent();
+
+  // return result
+  return [
+      'meta' => $frontMatter,
+      'html' => $html,
+  ];
+}

lib/render_php.php

@@ -0,0 +1,30 @@
+<?php
+use Symfony\Component\Yaml\Yaml;
+
+function render_php($file) {
+  ob_start();
+  #include __DIR__ . '/' . $file;
+  include $file;
+  $html = ob_get_clean();
+  $meta = [];
+
+  # Split off head matter
+  #
+  # this pattern uses the 'ms' modifier to treat multiline strings as a
+  # single string, and let '\s', '.' etc treat newlines as whitespace
+  # I match an _optional_ HTML ( '<!-- nnnn -->') comment if we want to wrap
+  # the headmatter in a comment.
+  #
+  # The headmatter is delimited by either '----' or '++++' as per
+  # Markdown/yaml standards.
+  # Technical note that '+' is a regex character so \+{3,} instead of ++++
+  if (preg_match('/^(<!--\s*)?(-{3,}|\+{3,})\s*(.*?)(-{3,}|\+{3,})\s*(-->)?\s*(.*)/ms',$html, $parts) === 1) {
+     $html = $parts[6];
+     $meta = array_merge($meta,Yaml::parse($parts[3]));
+  }
+
+  return [
+     'html' => $html,
+     'meta' => $meta,
+  ];
+}