import of Diogenes 0.9.18

[diogenes.git] / include / diogenes.compose.inc.php

diff --git a/include/diogenes.compose.inc.php b/include/diogenes.compose.inc.php
new file mode 100644 (file)
index 0000000..1d5bef0
--- /dev/null
+++ b/include/diogenes.compose.inc.php
@@ -0,0 +1,81 @@
+<?php
+/*
+ * Copyright (C) 2003-2004 Polytechnique.org
+ * http://opensource.polytechnique.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+require_once 'diogenes/diogenes.misc.inc.php';
+
+/** Protect PHP code.
+ */
+function phpProtect($input)
+{
+  $splits = preg_split("/(<\?php|\?>)/",$input,-1,PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+  $output = "";
+
+  while ($block = array_shift($splits)) {
+    if ($block == "<?php") {
+      $code = array_shift($splits);
+      $end = array_shift($splits);
+      if ($end != "?>")
+        die("phpProtect : parse error");
+      $output .= "{PHP:".base64_encode($code).":PHP}";
+    } else {
+      $output .= $block;
+    }
+  }
+
+  return $output;
+}
+
+
+/** Unprotect PHP code.
+ */
+function phpUnprotect($input)
+{
+  $splits = preg_split("/({PHP:.+:PHP})/",$input,-1,PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+  $output = "";
+
+  foreach ($splits as $block) {
+    if (preg_match("/{PHP:(.+):PHP}/",$block,$match)) {
+      $output .= "<?php".base64_decode($match[1])."?>";
+    } else {
+      $output .= $block;
+    }
+  }
+
+  return $output;
+}
+
+
+/** Convert XHTML-compliant tags to plain HTML.
+ */
+function xhtmlToHtml($input)
+{
+  return html_accent(preg_replace("/<(br|img|input|p)( [^\/]*)?\/>/","<\$1\$2>",$input));
+}
+
+
+/** Restore XHTML-compliant tags.
+ */
+function htmlToXhtml($input)
+{
+  return preg_replace("/<(br|img|input)( [^>]+)?>/","<\$1\$2/>",$input);
+}
+
+?>