1 files changed, 124 insertions, 0 deletions
diff --git a/bootstrap/comments/backend/classes/templater.php b/bootstrap/comments/backend/classes/templater.php
new file mode 100644
index 0000000..7b66645
--- /dev/null
+++ b/bootstrap/comments/backend/classes/templater.php
@@ -0,0 +1,124 @@
+<?php namespace HashOver;
+
+// Copyright (C) 2015-2018 Jacob Barkdull
+// This file is part of HashOver.
+//
+// HashOver is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// HashOver is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with HashOver.  If not, see <http://www.gnu.org/licenses/>.
+
+
+class Templater
+{
+	public $mode;
+	public $setup;
+	public $template;
+
+	protected $curlyRegex = '/\{([a-z]+):([a-z_-]+)\}/i';
+	protected $newlineSearch = array ("\r\n", "\r", "\n");
+	protected $newlineReplace = array ("\n", "\n", PHP_EOL);
+
+	public function __construct ($mode = 'php', Setup $setup)
+	{
+		$this->mode = $mode;
+		$this->setup = $setup;
+	}
+
+	public function loadFile ($file)
+	{
+		// Attempt to read template HTML file
+		$theme_html = @file_get_contents ($file);
+
+		// Check if template file read successfully
+		if ($theme_html !== false) {
+			// If so, return trimmed HTML template
+			return trim ($theme_html);
+		} else {
+			// If not, throw exception
+			throw new \Exception ('Failed to load template file.');
+		}
+	}
+
+	protected function curlyVariable ($key)
+	{
+		return '{{' . $key . '}}';
+	}
+
+	protected function fromTemplate ($key)
+	{
+		if ($this->mode !== 'php') {
+			return $this->curlyVariable ($key);
+		}
+
+		if (!empty ($this->template[$key])) {
+			return $this->template[$key];
+		}
+
+		return '';
+	}
+
+	protected function placeholder ($id)
+	{
+		$span_id  = 'hashover-placeholder-' . $id;
+		$span_id .= '-' . $this->fromTemplate ('permalink');
+
+		$placeholder = new HTMLTag ('span', array (
+			'id' => $span_id
+		), false);
+
+		if (!empty ($this->template[$id])) {
+			$placeholder->innerHTML ($this->template[$id]);
+		}
+
+		return $placeholder->asHTML ();
+	}
+
+	protected function parser ($var)
+	{
+		if (empty ($var[1]) or empty ($var[2])) {
+			return '';
+		}
+
+		switch ($var[1]) {
+			case 'hashover': {
+				return $this->fromTemplate ($var[2]);
+			}
+
+			case 'placeholder': {
+				return $this->placeholder ($var[2]);
+			}
+		}
+	}
+
+	public function parseTemplate ($file, array $template = array ())
+	{
+		$this->template = $template;
+		$data = $this->loadFile ($file);
+		$template = preg_replace_callback ($this->curlyRegex, 'self::parser', $data);
+		$template = str_replace ($this->newlineSearch, $this->newlineReplace, $template);
+		$template = preg_replace ('/^[\s\n]+$/m', '', $template);
+
+		return $template;
+	}
+
+	public function parseTheme ($file, array $template = array ())
+	{
+		// Get the file path for the configured theme
+		$path = $this->setup->getThemePath ($file, false);
+		$path = $this->setup->getAbsolutePath ($path);
+
+		// Parse the theme HTML as template
+		$theme = $this->parseTemplate ($path, $template);
+
+		return $theme;
+	}
+}