reStructuredText output

[grauphel.git] / lib / converter / base.php

diff --git a/lib/converter/base.php b/lib/converter/base.php
new file mode 100644 (file)
index 0000000..2694374
--- /dev/null
+++ b/lib/converter/base.php
@@ -0,0 +1,63 @@
+<?php
+/**
+ * Part of grauphel
+ *
+ * PHP version 5
+ *
+ * @category  Tools
+ * @package   Grauphel
+ * @author    Christian Weiske <cweiske@cweiske.de>
+ * @copyright 2014 Christian Weiske
+ * @license   http://www.gnu.org/licenses/agpl.html GNU AGPL v3
+ * @link      http://cweiske.de/grauphel.htm
+ */
+namespace OCA\Grauphel\Converter;
+
+/**
+ * Base class to convert tomboy XML to some other format.
+ *
+ * @category  Tools
+ * @package   Grauphel
+ * @author    Christian Weiske <cweiske@cweiske.de>
+ * @copyright 2014 Christian Weiske
+ * @license   http://www.gnu.org/licenses/agpl.html GNU AGPL v3
+ * @version   Release: @package_version@
+ * @link      http://cweiske.de/grauphel.htm
+ */
+class Base
+{
+    /**
+     * Re-arranges the XML of formatted links to that clean link tags can
+     * be generated.
+     *
+     * Tomboy 1.15.2 allows link formatting, and the resulting XML is a
+     * mess of multiple(!) link tags that are within or around other formatting
+     * tags.
+     *
+     * This method tries to re-arrange the links so that only a single link tag
+     * appears with all the formatting inside.
+     * 
+     * @param string $xmlContent Tomboy note content
+     *
+     * @return string XML content, with re-arranged link tags.
+     */
+    protected function fixNastyLinks($xmlContent)
+    {
+        preg_match_all(
+            '#(?:<.*>)?<link:internal>.+</link:internal><link:internal>.+</link:internal>#U',
+            $xmlContent,
+            $matches
+        );
+
+        foreach ($matches[0] as $nastyLink) {
+            $cleaner = str_replace('</link:internal><link:internal>', '', $nastyLink);
+            $cleaner = preg_replace('#<([a-z]+)><(link:internal)>#U', '<\2><\1>', $cleaner);
+            $cleaner = preg_replace('#</(link:internal)></([a-z]+)>#U', '</\2></\1>', $cleaner);
+            $cleaner = str_replace('</link:internal><link:internal>', '', $cleaner);
+            $xmlContent = str_replace($nastyLink, $cleaner, $xmlContent);
+        }
+
+        return $xmlContent;
+    }
+}
+?>