first commit

plugins/emu/lib/imu_api/Config.php

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+<?php
+/* KE Software Open Source Licence
+** 
+** Notice: Copyright (c) 2011-2013 KE SOFTWARE PTY LTD (ACN 006 213 298)
+** (the "Owner"). All rights reserved.
+** 
+** Licence: Permission is hereby granted, free of charge, to any person
+** obtaining a copy of this software and associated documentation files
+** (the "Software"), to deal with the Software without restriction,
+** including without limitation the rights to use, copy, modify, merge,
+** publish, distribute, sublicense, and/or sell copies of the Software,
+** and to permit persons to whom the Software is furnished to do so,
+** subject to the following conditions.
+** 
+** Conditions: The Software is licensed on condition that:
+** 
+** (1) Redistributions of source code must retain the above Notice,
+**     these Conditions and the following Limitations.
+** 
+** (2) Redistributions in binary form must reproduce the above Notice,
+**     these Conditions and the following Limitations in the
+**     documentation and/or other materials provided with the distribution.
+** 
+** (3) Neither the names of the Owner, nor the names of its contributors
+**     may be used to endorse or promote products derived from this
+**     Software without specific prior written permission.
+** 
+** Limitations: Any person exercising any of the permissions in the
+** relevant licence will be taken to have accepted the following as
+** legally binding terms severally with the Owner and any other
+** copyright owners (collectively "Participants"):
+** 
+** TO THE EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS",
+** WITHOUT ANY REPRESENTATION, WARRANTY OR CONDITION OF ANY KIND, EXPRESS
+** OR IMPLIED, INCLUDING (WITHOUT LIMITATION) AS TO MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. TO THE EXTENT
+** PERMITTED BY LAW, IN NO EVENT SHALL ANY PARTICIPANT BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.
+** 
+** WHERE BY LAW A LIABILITY (ON ANY BASIS) OF ANY PARTICIPANT IN RELATION
+** TO THE SOFTWARE CANNOT BE EXCLUDED, THEN TO THE EXTENT PERMITTED BY
+** LAW THAT LIABILITY IS LIMITED AT THE OPTION OF THE PARTICIPANT TO THE
+** REPLACEMENT, REPAIR OR RESUPPLY OF THE RELEVANT GOODS OR SERVICES
+** (INCLUDING BUT NOT LIMITED TO SOFTWARE) OR THE PAYMENT OF THE COST OF SAME.
+*/
+require_once __DIR__ . '/IMu.php';
+
+class IMuConfig
+{
+	public function
+	__construct()
+	{
+		$this->values = null;
+	}
+
+	public $values;
+
+	public function
+	load($file)
+	{
+		$doc = new DOMDocument;
+		if (! @$doc->load($file))
+			throw new IMuException('ConfigLoad', $file);
+		$xpath = new DOMXpath($doc);
+		$values = $this->loadNode($xpath, $doc->documentElement);
+		$this->mergeValue($this->values, $values);
+	}
+
+	public function
+	merge($values)
+	{
+		$this->mergeValue($this, $values);
+	}
+
+	protected function
+	loadNode($xpath, $node)
+	{
+		$children = $xpath->query('*', $node);
+		$length = $children->length;
+		if ($length == 0)
+			return $node->nodeValue;
+		if ($length == 1)
+		{
+			$type = $node->getAttribute('type');
+			if ($type == '')
+				$type = 'set';
+		}
+		else
+		{
+			$type = 'list';
+			$first = $children->item(0)->nodeName;
+			for ($i = 1; $i < $length; $i++)
+			{
+				$child = $children->item($i);
+				if ($child->nodeName != $first)
+				{
+					$type = 'set';
+					break;
+				}
+			}
+		}
+		if ($type == 'list')
+		{
+			$list = array();
+			for ($i = 0; $i < $length; $i++)
+			{
+				$child = $children->item($i);
+				$list[] = $this->loadNode($xpath, $child);
+			}
+			return $list;
+		}
+		$set = array();
+		for ($i = 0; $i < $length; $i++)
+		{
+			$child = $children->item($i);
+			$name = $child->nodeName;
+			$set[$name] = $this->loadNode($xpath, $child);
+		}
+		return $set;
+	}
+
+	protected function
+	mergeValue(&$old, $new)
+	{
+		if (! is_array($old))
+			$old = $new;
+		else if (array_keys($old) === range(0, count($old) - 1))
+		{
+			/* list */
+			if (is_array($new))
+			{
+				foreach ($new as $name => $value)
+					$old[] = $value;
+			}
+			else
+				$old[] = $new;
+		}
+		else
+		{
+			/* set */
+			if (is_array($new))
+			{
+				foreach ($new as $name => $value)
+				{
+					if (array_key_exists($name, $old))
+						$this->mergeValue($old[$name], $value);
+					else
+						$old[$name] = $value;
+				}
+			}
+		}
+	}
+}
+?>