current code from svn, revision 62608

1 files changed, 63 insertions, 0 deletions

diff --git a/lib/classes/StudipFileloader.php b/lib/classes/StudipFileloader.php
new file mode 100644
index 0000000..f499b68
--- /dev/null
+++ b/lib/classes/StudipFileloader.php
@@ -0,0 +1,63 @@
+<?php
+/**
+ * @author     <sebastian@phpunit.de>
+ * @author     <mlunzena@uos.de>
+ * @copyright  2001-2013 Sebastian Bergmann <sebastian@phpunit.de>
+ * @license    http://www.opensource.org/licenses/BSD-3-Clause  The BSD 3-Clause License
+ */
+class StudipFileloader
+{
+    /**
+     * Loads a PHP sourcefile and transfers all therein defined
+     * variables into a specified container.
+     * Optionally you may inject more bindings into the scope, if the
+     * sourcefile requires them.
+     *
+     * @param  string $_filename   which file to load
+     * @param  array  $_container  where to put the new variables into
+     * @param  array  $_injected   optional bindings, to inject into
+     *                             the scope before loading
+     * @param bool $_allow_overwrite allow overwriting of injected
+     * @return array names of newly added variables
+     */
+    public static function load($_filename, &$_container, $_injected = [], $_allow_overwrite = false)
+    {
+        extract($_injected);
+
+        $_oldVariableNames = array_keys(get_defined_vars());
+
+        foreach (preg_split('/ /', $_filename, -1, PREG_SPLIT_NO_EMPTY) as $file) {
+            include $file;
+        }
+        unset($file);
+
+        $newVariables = get_defined_vars();
+
+        unset($newVariables['_filename']);
+        unset($newVariables['_container']);
+        unset($newVariables['_injected']);
+        unset($newVariables['_allow_overwrite']);
+        unset($newVariables['_oldVariableNames']);
+
+        if ($_allow_overwrite) {
+            $newVariableNames = array_keys($newVariables);
+        } else {
+            $newVariableNames = array_diff(
+                array_keys($newVariables),
+                $_oldVariableNames
+            );
+        }
+
+        foreach ($newVariableNames as $variableName) {
+            $_container[$variableName] = $newVariables[$variableName];
+        }
+
+        foreach ($_injected as $key => $value) {
+            if ($$key === $value) {
+                $newVariableNames = array_diff($newVariableNames, [$key]);
+            }
+        }
+
+        return $newVariableNames;
+    }
+}