24 files changed, 269 insertions, 269 deletions
diff --git a/docu/language_definition.html b/docu/language_definition.html
index 08bacb7..8fef8f0 100644
--- a/docu/language_definition.html
+++ b/docu/language_definition.html
@@ -24,12 +24,12 @@
 			background: #eee;
 		}
 	</style>
-	
+
 </head>
 <body>
 	<h1>The <acronym>STE</acronym> Template Language</h1>
 	<p>This is the documentation of the Template Language of the <strong>S</strong>TE <strong>T</strong>emplate <strong>E</strong>ngine.</p>
-	
+
 	<h2 id="toc">TOC</h2>
 		<ol>
 			<li>
@@ -86,10 +86,10 @@
 				</ol>
 			</li>
 		</ol>
-	
+
 	<h2 id="basic_elems">Basic Elements</h2>
 		<p>The STE Template Language consists of four basic elements:</p>
-	
+
 		<h3 id="basic_elems_text">Text</h3>
 			<p>Everything that is not a <a href="#basic_elems_variable">Variable</a>, a <a href="#basic_elems_tag">Tag</a> or a <a href="#basic_elems_pseudotag">Pseudotag</a> is Text.</p>
 			<p>Also everything that is wrapped in the <a href="#basic_elems_pseudotag_rawtext">ste:rawtext</a> <a href="#basic_elems_pseudotag">pseudotag</a> will be Text, whereby all <a href="#basic_elems_tag">Tags</a> and <a href="#basic_elems_variable">Variables</a> will not be parsed.</p>
@@ -100,14 +100,14 @@
 			<code><pre>Foo &lt;ste:bar&gt;$baz[herpdederp]&lt;/ste:baz&gt;</pre></code>
 			will result in one text-element and one tag-element containing one variable-element.
 			</p>
-	
+
 		<h3 id="basic_elems_variable">Variable</h3>
 			<p>Variables start with a <code>$</code> or can be wrapped within <code>${</code> and <code>}</code>, so you can write this: <code>${foo}ish</code></p>
 			<p>Variable have names, these names can consist of letters (english alphabet; upper and lower case), numbers and underscores (<code>_</code>). As a regex: <code>[a-zA-Z0-9_]+</code></p>
 			<p>A variable can also be an array. To access an array, wrap the desired fieldname within <code>[</code> and <code>]</code>. A fieldname can be constructed of <a href="#basic_elems_text">Text</a> and other Variables. So you can dynamically access fields: <code>$foo[$bar]</code>. These fieldnames can also be nested or concatenated: <code>$foo[$bar[baz]][herp][$de[derp]]</code></p>
 			<p>If you want a literal <code>$</code> char, you can escape it: <code>\$</code></p>
 			<p>Variables in STE are typeless, everything is text. In a boolean context, empty text usually represents false, else true.</p>
-	
+
 		<h3 id="basic_elems_tag">Tag</h3>
 			<p>A Tag can be compared to a function. A Tag can have parameters and children <a href="#basic_elems">elements</a>.</p>
 			<p>
@@ -126,14 +126,14 @@
 				When using variables in parameter values, they will be "replaced" by their value. Because many tags need the variable and not its content, they expect only the variable's name. If you then write <code>foo="$bar"</code>, the tag will not operate on the <code>bar</code> variable but on the Variable with the name stored in <code>$bar</code>! So read the instructions to the tag carefully!
 			</p>
 			<p>Example: <code>&lt;ste:foo bar="baz" herp="literal quote sign: \""&gt;de &lt;ste:derp hehe="hoho$wtf[xd]" /&gt;&lt;/ste:foo&gt;</code></p>
-	
+
 		<h3 id="basic_elems_pseudotag">Pseudotag</h3>
 			<p>Pseudotags look like normal tags, but they perform special tasks. There are currently two pseudotags:</p>
 			<h4 id="basic_elems_pseudotag_comment">ste:comment</h4>
 			<p>With the ste:comment pseudotag you can comment your template/code. Everything between <code>&lt;ste:comment&gt;</code> and <code>&lt;/ste:comment&gt;</code> will be ignored, before the real tokenization of the code starts.</p>
 			<h4 id="basic_elems_pseudotag_rawtext">ste:rawtext</h4>
 			<p>The ste:rawtext pseudotag will output a <a href="#basic_elems_text">Text</a> element with its wrapped content. It will prevent parsing of the content. Useful if you are embedding another script language, which uses the <code>$</code> char or also has a XML-Like syntax. No <a href="#escaping">escape sequences</a> will be translated! Can not be used in <a href="#basic_elems_tag">Tag</a> parameter values!</p>
-	
+
 	<h2 id="escaping">Escaping special chars</h2>
 		<p>To get a literal <code>$</code>, <code>"</code> or other special chars, STE gives you the following escape sequences:</p>
 		<table>
@@ -203,10 +203,10 @@
 		</tbody>
 		</table>
 		<p>Escape sequences are not translated in <a href="#basic_elems_pseudotag">Pseudotags</a></p>
-	
+
 	<h2 id="builtin">Builtin Tags</h2>
 		<p><acronym>STE</acronym> has some builtin <a href="#basic_elems_tag">Tags</a>, that makes programming in STE possible.</p>
-	
+
 		<h3 id="builtin_if">ste:if</h3>
 			<p>The ste:if Tag provides an if-clause to STE.</p>
 			<p>ste:if can have the subtags ste:then and ste:else. Everything between <code>&lt;ste:if&gt;</code> and <code>&lt;/ste:if&gt;</code>, that is <strong>not</strong> an ste:then or ste:else tag, will be used as the condition.</p>
@@ -225,7 +225,7 @@
 				<p><code>&lt;ste:if&gt;condition&lt;ste:then&gt;then&lt;/ste:then&gt;&lt;ste:else&gt;else&lt;/ste:else&gt;&lt;/ste:if&gt;</code></p>
 				<p><code>?</code>, <code>{</code>, <code>|</code> and <code>}</code> can be <a href="#escaping">escaped</a></p>
 				<p>In this variant, the else part <strong>is not optional</strong>!</p>
-		
+
 		<h3 id="builtin_cmp">ste:cmp</h3>
 			<p>With the ste:cmp tag you can compare two values.</p>
 			<p>ste:cmp is selfclosing, the compared values are passed by parameters.</p>
@@ -287,7 +287,7 @@
 				<p>This is equivalent to:</p>
 				<p><code>&lt;ste:cmp text_a="a" op="operator" text_b="b" /&gt;</code></p>
 				<p><code>~</code>, <code>{</code>, <code>|</code> and <code>}</code> can be <a href="#escaping">escaped</a>.</p>
-		
+
 		<h3 id="builtin_not">ste:not</h3>
 			<p>The ste:not Tag will logically invert its content. If it is an empty text (i.e. false), it will return a non-empty text (i.e. true) and vice versa.</p>
 			<p>
@@ -295,10 +295,10 @@
 <code><pre>&lt;ste:if&gt;<br />	&lt;ste:not&gt;$foo&lt;/ste:not&gt;<br />	&lt;ste:then&gt;:-)&lt;/ste:then&gt;<br />	&lt;ste:else&gt;:-(&lt;/ste:else&gt;<br />&lt;/ste:if&gt;</pre></code>
 				If the variable <code>foo</code> is empty (i.e. false), <code>:-)</code> will be returned, <code>:-(</code> otherwise.
 			</p>
-		
+
 		<h3 id="builtin_even">ste:even</h3>
 			<p>If the enclosed text is a number, and the number is even, this tag will return a non-empty text (i.e. true), an empty text (i.e. false) otherwise.</p>
-		
+
 		<h3 id="builtin_for">ste:for</h3>
 			<p>ste:for provides a counter loop.</p>
 			<p>
@@ -340,7 +340,7 @@
 <code><pre>&lt;ste:for start="10" stop="0" step="-1" counter="i"&gt;<br />	$i&lt;br /&gt;<br />&lt;/ste:for&gt;</pre></code>
 				Will count from 10 down to 0 and output the number followed by an HTML line break.
 			</p>
-		
+
 		<h3 id="builtin_foreach">ste:foreach</h3>
 			<p>ste:foreach will loop through an array.</p>
 			<p>
@@ -390,7 +390,7 @@
 				<code><pre>&lt;ste:foreach array="foo" value="v"&gt;<br />    &lt;p&gt;$v&lt;/p&gt;<br />    &lt;ste:else&gt;<br />        Array \$foo is empty.<br />    &lt;/ste:else&gt;<br />&lt;/ste:foreach&gt;</pre></code>
 				This code will list all array elements or will display <code>Array $foo is empty</code> if the array <code>$foo</code> is empty.
 			</p>
-		
+
 		<h3 id="builtin_infloop">ste:infloop</h3>
 			<p>Creates an infinitive loop. You can get out of the loop using the <a href="#builtin_break">ste:break</a> tag. Can be used to emulate other loop constructs like while loops.</p>
 			<p>
@@ -398,13 +398,13 @@
 <code><pre>&lt;ste:infloop&gt;<br />	&lt;ste:if&gt;<br />		&lt;ste:foo /&gt;<br />		&lt;ste:then&gt;&lt;ste:break /&gt;&lt;/ste:then&gt;<br />	&lt;/ste:if&gt;<br />	...<br />&lt;ste:infloop&gt;</pre></code>
 				This code will return <code>...</code> while <code>&lt;ste:foo /&gt;</code> returns an empty text (i.e. false).
 			</p>
-		
+
 		<h3 id="builtin_break">ste:break</h3>
 			<p>When this self-closing tag is called, the current loop (<a href="builtin_for">ste:for</a>, <a href="builtin_foreach">ste:foreach</a>, <a href="builtin_infloop">ste:infloop</a>) will be aborted.</p>
-		
+
 		<h3 id="builtin_continue">ste:continue</h3>
 			<p>When this self-closing tag is called, the current loop(<a href="builtin_for">ste:for</a>, <a href="builtin_foreach">ste:foreach</a>, <a href="builtin_infloop">ste:infloop</a>) will go to the next iteration, aborting the current iteration. </p>
-		
+
 		<h3 id="builtin_load">ste:load</h3>
 			<p>This self-closing tag loads and executes another template. The <code>name</code> parameter (mandatory) defines the template to load.</p>
 			<p>Because each template must be parseable and transcompilable by itself, this is not a inclusion of another template. So you can not do this:</p>
@@ -421,7 +421,7 @@
 				master.tpl<br />
 <code><pre>&lt;ste:baz&gt;<br />	&lt;ste:load name="slave.tpl" /&gt;<br />&lt;/ste:baz&gt;</pre></code>
 			</p>
-		
+
 		<h3 id="builtin_block">ste:block</h3>
 			<p>ste:block provides an easy way for writing master templates. Every block has a name. When a block is defined twice, the second one will overwrite the first one.</p>
 			<p>The name can be set with the <code>name</code> parameter.</p>
@@ -434,7 +434,7 @@
 				When executing slave.tpl, master.tpl will be loaded and its <code>content</code> block will be replaced with the new one (<code>Much cooler content :-)</code>) but leave the original <code>sidebar</code> block.
 			</p>
 			<p>Blocks can not be nested.</p>
-		
+
 		<h3 id="builtin_set">ste:set</h3>
 			<p>ste:set will set a variable. The parameter <code>var</code> takes the name of the variable to set. The content of the <a href="#basic_elems_tag">Tag</a> will be the new content of the variable.</p>
 			<p>
@@ -446,10 +446,10 @@
 				<a href="#basic_elems_tag">Tag</a> parameter values can not contain Tags. ste:set can be used to bypass this:<br />
 <code><pre>&lt;ste:set var="temp"&gt;&lt;ste:foo /&gt;&lt;/ste:set&gt;<br />&lt;ste:bar baz="$temp" /&gt;</pre></code>
 			</p>
-		
+
 		<h3 id="builtin_setlocal">ste:set</h3>
 			<p>ste:setlocal is used like <a href="#builtin_set">ste:set</a>, but only a local variable will be set (ste:set would overwrite a variable, if it was declared in a parent scope).
-		
+
 		<h3 id="builtin_get">ste:get</h3>
 			<p>ste:get will return the content of a variable. The parameter <code>var</code> takes the name of the variable to get. Useful, if you want to get a variable which name is stored in a variable.</p>
 			<p>
@@ -457,7 +457,7 @@
 <code><pre>&lt;ste:get var="$foo" /&gt;</pre></code>
 				This will get the variable with the name that is stored in the variable <code>foo</code>.
 			</p>
-		
+
 		<h3 id="builtin_calc">ste:calc</h3>
 			<p>To perform mathematical calculations, you can use ste:calc. ste:calc calculates the mathematical formula it is wrapped around and returns the result. The formula is in the usual <a href="http://en.wikipedia.org/wiki/Infix_notation">infix-notation [ext. Link]</a> and has these operators: <code>+</code>, <code>-</code>, <code>*</code>, <code>/</code> and <code>^</code>. Numbers are always decimal, the decimal mark is <code>.</code> and numbers can be prefixed with an <code>-</code> to indicate a negative number. It is a good idea to wrap a negative number in brackets to prevent wrong evaluation (because <code>-</code> is also an operator). Calculations can be grouped with brackets: <code>(</code> and <code>)</code>.</p>
 			<p>Real numbers are supported, complex numbers not.</p>
@@ -467,7 +467,7 @@
 				<code>&lt;ste:calc&gt;(2+3+4) * (1.5 - (-0.5))&lt;/ste:calc&gt;</code> will return <code>18</code>.
 			</p>
 			<p>This Tag is pretty slow, because the formula is not transcompiled and only evaluated at runtime. For some simple increment and decrement operations it is better to use the <a href="#stdlib_inc">ste:inc</a> and <a href="#stdlib_dec">ste:dec</a> Tags from the <a href="#stdlib">standard library</a>.</p>
-		
+
 		<h3 id="builtin_mktag">ste:mktag</h3>
 			<p>ste:mktag allows you to define own <a href="#basic_elems_tag">Tags</a> using the STE Template Language.</p>
 			<p>The parameter <code>name</code> (mandatory) expects the name of the new tag. If your tag requires some parameters, you can specify them using the optional <code>mandatory</code> parameter. Names of the mandatory parameters are separated by <code>|</code>.</p>
@@ -480,7 +480,7 @@
 				Will output:<br />
 <code><pre>10&lt;br/&gt;<br />8&lt;br /&gt;<br />6&lt;br /&gt;<br />4&lt;br /&gt;<br />2&lt;br /&gt;<br />0&lt;br /&gt;</pre></code>
 			</p>
-		
+
 	<h2 id="stdlib">Standard Library</h2>
 		<p>The Standard Library contains some useful tags, which are not <a href="#builtin">builtin</a> but still always available.</p>
 		<h3 id="stdlib_escape">ste:escape</h3>
@@ -494,26 +494,26 @@
 			<p>
 				If the optional parameter <code>lines</code> is true (i.e. not empty), then additionally line breaks are converted to <code>&lt;br /&gt;</code>.
 			</p>
-		
+
 		<h3 id="stdlib_autoescape">ste:autoescape</h3>
 			<p>Sets the autoescaping method in its content. Autoescaping escapes all variables that are not part of an argument of an STE tag. By default, autoescaping is turned off (mode <code>none</code>) due to backwards compatibility with old versions of STE.</p>
 			<p>The parameter <code>mode</code> is mandatory and can be one of <code>none</code> (no escaping) or <code>html</code> (escape as HTML).</p>
-		
+
 		<h3 id="stdlib_raw">ste:raw</h3>
 			<p><code>&lt;ste:raw&gt;...&lt;/ste:raw&gt;</code> is an alias for <code>&lt;ste:<a href="#stdlib_autoescape">autoescape</a> mode=&quot;none&quot;&gt;...<&lt;ste:autoescape&gt;</code>
-		
+
 		<h3 id="stdlib_strlen">ste:strlen</h3>
 			<p>Returns the length of then content.</p>
-		
+
 		<h3 id="stdlib_arraylen">ste:arraylen</h3>
 			<p>Returns the number of elements in the array (variable name given by parameter <code>array</code>).</p>
-		
+
 		<h3 id="stdlib_inc">ste:inc</h3>
 			<p>Increments (i.e. add 1) a variable (variable name given by parameter <code>var</code>).</p>
-		
+
 		<h3 id="stdlib_dec">ste:dec</h3>
 			<p>Decrements (i.e. subtract 1) a variable (variable name given by parameter <code>var</code>).</p>
-		
+
 		<h3 id="stdlib_date">ste:date</h3>
 			<p>Formats a time using PHPs <a href="http://php.net/manual/en/function.strftime.php">strftime format [ext. Link]</a>. The format is given in the tag's content. You can specify a time (unix timestamp) using the <code>timestamp</code> parameter (defaults to the current time).</p>
 			<p>
@@ -522,21 +522,21 @@
 				Result:<br />
 				<code><pre>18. Sep. 2011, 16:49:20</pre></code>
 			</p>
-		
+
 		<h3 id="stdlib_in_array">ste:in_array</h3>
 			<p>Check, if a value is in an array. The tag takes the variable name of the array by parameter <code>array</code>.The value to test with will be taken from the tags content.</p>
 			<p>Returns empty text, if the value is not in the array, otherwise a non-empty text.</p>
-		
+
 		<h3 id="stdlib_join">ste:join</h3>
 			<p>Join parts of an array together. The array's variable name goes to the <code>array</code> parameter. The tag's content will be used as the glue, i.e. this will be between two elements.</p>
 			<p>Returns the joined array</p>
-		
+
 		<h3 id="stdlib_split">ste:split</h3>
 			<p>Split a text and write the parts to an array. The <code>array</code> parameter takes the variable name of the resulting array, the <code>delim</code> parameter the text to split by. The tag's content will be the text to split.</p>
-		
+
 		<h3 id="stdlib_array_add">ste:array_add</h3>
 			<p>Adding an element to an array. The <code>array</code> parameter takes the variable name of the array. The <code>key</code> parameter takes the array key to map the value to, if omitted, the value will be appended to the end of the array. The value is the tag's content.</p>
-		
+
 		<h3 id="stdlib_array_filter">ste:array_filter</h3>
 			<p>Filter out array elements by multiple criterias.</p>
 			<p>All the parameters are names of array variables.</p>
diff --git a/example/index.php b/example/index.php
index a0aa03c..3c7c5ba 100644
--- a/example/index.php
+++ b/example/index.php
@@ -34,10 +34,10 @@ $ste->register_tag("repeat",
 		$output = "";
 		if(!is_numeric($params["n"]))
 			throw new ste\RuntimeError("Sorry, but parameter n must be a number...");
-		
+
 		for($i = 0; $i < $params["n"]; ++$i)
 			$output .= $sub($ste);
-		
+
 		return $output;
 	}
 );
diff --git a/example/templates/src/articles.html b/example/templates/src/articles.html
index 36f59c4..38cab10 100644
--- a/example/templates/src/articles.html
+++ b/example/templates/src/articles.html
@@ -29,7 +29,7 @@
 			<p>There are <a href="#">more articles</a>.</p>
 		</ste:then>
 	</ste:if>
-	
+
 	<h2>Some more useless demo stuff...</h2>
 		<h3>Counting from 10 to 0...</h3>
 		<p>but take only the even ones and multiply by 5...</p>
@@ -41,15 +41,15 @@
 				</ste:then>
 			</ste:if>
 		</ste:for>
-		
+
 		<h3>Repeat some text...</h3>
 		<ste:repeat n="10">
 			<p>Bla</p>
 		</ste:repeat>
-		
+
 		<h3>Get a variable's content dynamically</h3>
 		<ste:get var="${foo}[$bar]" />
-		
+
 		<h3>We will call ste:repeat with a non-numerical value for n here to see the handling of a RuntimeError</h3>
 		<ste:repeat n="lol">
 			<p>Bla</p>
diff --git a/example/templates/src/custom_tags.tpl b/example/templates/src/custom_tags.tpl
index 7e821c5..6ed0596 100644
--- a/example/templates/src/custom_tags.tpl
+++ b/example/templates/src/custom_tags.tpl
@@ -7,7 +7,7 @@
 				<ste:break />
 			</ste:then>
 		</ste:if>
-		
+
 		<ste:if>
 			$_tag_parameters[counter]
 			<ste:then>
diff --git a/example/templates/src/master.html b/example/templates/src/master.html
index fe6b1e6..710b9d4 100644
--- a/example/templates/src/master.html
+++ b/example/templates/src/master.html
@@ -13,14 +13,14 @@
 		.offline {
 			color: #555;
 			font-style: italic;
-			
+
 		}
 	</style>
-	
+
 </head>
 <body>
 	<h1>example</h1>
-	
+
 	<div id="content">
 		<ste:block name="content">
 			Default content.
diff --git a/src/ste/Calc.php b/src/ste/Calc.php
index e8dba8d..595a7d6 100644
--- a/src/ste/Calc.php
+++ b/src/ste/Calc.php
@@ -5,7 +5,7 @@ namespace kch42\ste;
 /* Class Calc contains static methods needed by <ste:calc /> */
 class Calc {
 	private function __construct() {}
-	
+
 	/* We could also just eval() the $infix_math code, but this is much cooler :-D (Parser inception) */
 	public static function shunting_yard($infix_math) {
 		$operators = array(
@@ -18,12 +18,12 @@ class Calc {
 			"(" => array("", 0), 
 			")" => array("", 0)
 		);
-		
+
 		preg_match_all("/\s*(?:(?:[+\\-\\*\\/\\^\\(\\)])|(\\d*[\\.]?\\d*))\\s*/s", $infix_math, $tokens, PREG_PATTERN_ORDER);
 		$tokens_raw   = array_filter(array_map('trim', $tokens[0]), function($x) { return ($x === "0") || (!empty($x)); });
 		$output_queue = array();
 		$op_stack     = array();
-		
+
 		$lastpriority = NULL;
 		/* Make - unary, if neccessary */
 		$tokens = array();
@@ -37,7 +37,7 @@ class Calc {
 			}
 			$lastpriority = $priority;
 		}
-		
+
 		while(!empty($tokens)) {
 			$token = array_shift($tokens);
 			if(is_numeric($token)) {
@@ -73,7 +73,7 @@ class Calc {
 				$op_stack[] = $token;
 			}
 		}
-		
+
 		while(!empty($op_stack)) {
 			$op = array_pop($op_stack);
 			if($op == "(") {
@@ -81,10 +81,10 @@ class Calc {
 			}
 			$output_queue[] = $op;
 		}
-		
+
 		return $output_queue;
 	}
-	
+
 	public static function pop2(&$array) {
 		$rv = array(array_pop($array), array_pop($array));
 		if(array_search(NULL, $rv, true) !== false) {
@@ -92,7 +92,7 @@ class Calc {
 		}
 		return $rv;
 	}
-	
+
 	public static function calc_rpn($rpn) {
 		$stack = array();
 		foreach($rpn as $token) {
@@ -131,7 +131,7 @@ class Calc {
 		}
 		return array_pop($stack);
 	}
-	
+
 	public static function calc($expr) {
 		return self::calc_rpn(self::shunting_yard($expr));
 	}
diff --git a/src/ste/FilesystemStorageAccess.php b/src/ste/FilesystemStorageAccess.php
index cdbce8b..51945b8 100644
--- a/src/ste/FilesystemStorageAccess.php
+++ b/src/ste/FilesystemStorageAccess.php
@@ -12,7 +12,7 @@ namespace kch42\ste;
 class FilesystemStorageAccess implements StorageAccess {
 	protected $sourcedir;
 	protected $transcompileddir;
-	
+
 	/*
 	 * Constructor: __construct
 	 * 
@@ -24,11 +24,11 @@ class FilesystemStorageAccess implements StorageAccess {
 		$this->sourcedir        = $src;
 		$this->transcompileddir = $transc;
 	}
-	
+
 	public function load($tpl, &$mode) {
 		$src_fn    = $this->sourcedir        . "/" . $tpl;
 		$transc_fn = $this->transcompileddir . "/" . $tpl . ".php";
-		
+
 		if($mode == StorageAccess::MODE_SOURCE) {
 			$content = @file_get_contents($src_fn);
 			if($content === false) {
@@ -36,10 +36,10 @@ class FilesystemStorageAccess implements StorageAccess {
 			}
 			return $content;
 		}
-		
+
 		$src_stat    = @stat($src_fn);
 		$transc_stat = @stat($transc_fn);
-		
+
 		if(($src_stat === false) and ($transc_stat === false)) {
 			throw new CantLoadTemplate("Template not found.");
 		} else if($transc_stat === false) {
@@ -58,7 +58,7 @@ class FilesystemStorageAccess implements StorageAccess {
 			}
 		}
 	}
-	
+
 	public function save($tpl, $data, $mode) {
 		$fn = (($mode == StorageAccess::MODE_SOURCE) ? $this->sourcedir : $this->transcompileddir) . "/" . $tpl . (($mode == StorageAccess::MODE_TRANSCOMPILED) ? ".php" : "");
 		@mkdir(dirname($fn), 0777, true);
diff --git a/src/ste/ParseCompileError.php b/src/ste/ParseCompileError.php
index 5ee37c7..8a7c36b 100644
--- a/src/ste/ParseCompileError.php
+++ b/src/ste/ParseCompileError.php
@@ -6,14 +6,14 @@ class ParseCompileError extends \Exception {
 	public $msg;
 	public $tpl;
 	public $off;
-	
+
 	public function __construct($msg, $tpl, $offset, $code = 0, $previous = NULL) {
 		$this->msg = $msg;
 		$this->tpl = $tpl;
 		$this->off = $offset;
 		$this->message = "$msg (Template $tpl, Offset $offset)";
 	}
-	
+
 	public function rewrite($code) {
 		$line = substr_count(str_replace("\r\n", "\n", substr($code, 0, $this->off)), "\n") + 1;
 		$this->message = "{$this->msg} (Template {$this->tpl}, Line $line)";
diff --git a/src/ste/Parser.php b/src/ste/Parser.php
index 7e93e47..14ec33d 100644
--- a/src/ste/Parser.php
+++ b/src/ste/Parser.php
@@ -15,19 +15,19 @@ class Parser {
 	private $name;
 	private $off;
 	private $len;
-	
+
 	const PARSE_SHORT = 1;
 	const PARSE_TAG   = 2;
-	
+
 	const ESCAPES_DEFAULT = '$?~{}|\\';
-	
+
 	private function __construct($text, $name) {
 		$this->text = $text;
 		$this->name = $name;
 		$this->off  = 0;
 		$this->len  = mb_strlen($text);
 	}
-	
+
 	private function next($n = 1) {
 		if($n <= 0) {
 			throw new \InvalidArgumentException("\$n must be > 0");
@@ -36,28 +36,28 @@ class Parser {
 		$this->off = min($this->off + $n, $this->len);
 		return $c;
 	}
-	
+
 	private function eof() {
 		return ($this->off == $this->len);
 	}
-	
+
 	private function back($n = 1) {
 		if($n <= 0) {
 			throw new \InvalidArgumentException("\$n must be > 0");
 		}
 		$this->off = max($this->off - $n, 0);
 	}
-	
+
 	private function search_off($needle) {
 		return mb_strpos($this->text, $needle, $this->off);
 	}
-	
+
 	private function search_multi($needles) {
 		$oldoff = $this->off;
-		
+
 		$minoff = $this->len;
 		$which = NULL;
-		
+
 		foreach($needles as $key => $needle) {
 			if(($off = $this->search_off($needle)) === false) {
 				continue;
@@ -68,25 +68,25 @@ class Parser {
 				$which = $key;
 			}
 		}
-		
+
 		$this->off = $minoff + (($which === NULL) ? 0 : mb_strlen((string) $needles[$which]));
-		
+
 		return array($which, $minoff, mb_substr($this->text, $oldoff, $minoff - $oldoff), $oldoff);
 	}
-	
+
 	private function search($needle) {
 		$oldoff = $this->off;
-		
+
 		$off = $this->search_off($needle);
 		if($off === false) {
 			$this->off = $this->len;
 			return array(false, mb_substr($this->text, $oldoff), $oldoff);
 		}
-		
+
 		$this->off = $off + mb_strlen($needle);
 		return array($off, mb_substr($this->text, $oldoff, $off - $oldoff), $oldoff);
 	}
-	
+
 	private function take_while($cb) {
 		$s = "";
 		while($c = $this->next()) {
@@ -98,11 +98,11 @@ class Parser {
 		}
 		return $s;
 	}
-	
+
 	private function skip_ws() {
 		$this->take_while("ctype_space");
 	}
-	
+
 	private function get_name() {
 		$off = $this->off;
 		$name = $this->take_while(function($c) { return ctype_alnum($c) || ($c == "_"); });
@@ -111,7 +111,7 @@ class Parser {
 		}
 		return $name;
 	}
-	
+
 	/*
 	 * Function: parse
 	 * Parses the input into an AST.
@@ -136,13 +136,13 @@ class Parser {
 		);
 		return self::tidyup_ast($res[0]);
 	}
-	
+
 	private static function tidyup_ast($ast) {
 		$out = array();
-		
+
 		$prevtext = NULL;
 		$first = true;
-		
+
 		foreach($ast as $node) {
 			if($node instanceof TextNode) {
 				if($prevtext === NULL) {
@@ -161,7 +161,7 @@ class Parser {
 				}
 				$prevtext = NULL;
 				$first = false;
-				
+
 				if($node instanceof TagNode) {
 					$node->sub = self::tidyup_ast($node->sub);
 					foreach($node->params as $k => &$v) {
@@ -174,11 +174,11 @@ class Parser {
 					}
 					unset($v);
 				}
-				
+
 				$out[] = $node;
 			}
 		}
-		
+
 		if($prevtext !== NULL) {
 			if($first) {
 				$prevtext->text = ltrim($prevtext->text);
@@ -187,14 +187,14 @@ class Parser {
 				$out[] = $prevtext;
 			}
 		}
-		
+
 		return $out;
 	}
-	
+
 	private function parse_text($escapes, $flags, $breakon = NULL, $separator = NULL, $nullaction = NULL, $opentag = NULL, $openedat = -1) {
 		$elems = array();
 		$astlist = array();
-		
+
 		$needles = array(
 			"commentopen" => "<ste:comment>",
 			"rawopen" => "<ste:rawtext>",
@@ -202,7 +202,7 @@ class Parser {
 			"varcurlyopen" => '${',
 			"var" => '$',
 		);
-		
+
 		if($flags & self::PARSE_TAG) {
 			$needles["tagopen"] = '<ste:';
 			$needles["closetagopen"] = '</ste:';
@@ -211,19 +211,19 @@ class Parser {
 			$needles["shortifopen"] = '?{';
 			$needles["shortcompopen"] = '~{';
 		}
-		
+
 		if($separator !== NULL) {
 			$needles["sep"] = $separator;
 		}
 		if($breakon !== NULL) {
 			$needles["break"] = $breakon;
 		}
-		
+
 		for(;;) {
 			list($which, $off, $before, $offbefore) = $this->search_multi($needles);
-			
+
 			$astlist[] = new TextNode($this->name, $offbefore, $before);
-			
+
 			switch($which) {
 			case NULL:
 				if($nullaction === NULL) {
@@ -258,14 +258,14 @@ class Parser {
 				if($this->next() != ">") {
 					throw new ParseCompileError("Expected '>' in closing ste-Tag", $this->name, $off);
 				}
-				
+
 				if($opentag === NULL) {
 					throw new ParseCompileError("Found closing ste:$name tag, but no tag was opened", $this->name, $off_start);
 				}
 				if($opentag != $name) {
 					throw new ParseCompileError("Open ste:$opentag was not closed", $this->name, $openedat);
 				}
-				
+
 				$elems[] = $astlist;
 				return $elems;
 			case "escape":
@@ -282,22 +282,22 @@ class Parser {
 				if(count($shortelems) != 3) {
 					throw new ParseCompileError("A short if tag must have the form ?{..|..|..}", $this->name, $off);
 				}
-				
+
 				list($cond, $then, $else) = $shortelems;
 				$thentag = new TagNode($this->name, $off);
 				$thentag->name = "then";
 				$thentag->sub = $then;
-				
+
 				$elsetag = new TagNode($this->name, $off);
 				$elsetag->name = "else";
 				$elsetag->sub = $else;
-				
+
 				$iftag = new TagNode($this->name, $off);
 				$iftag->name = "if";
 				$iftag->sub = $cond;
 				$iftag->sub[] = $thentag;
 				$iftag->sub[] = $elsetag;
-				
+
 				$astlist[] = $iftag;
 				break;
 			case "shortcompopen":
@@ -305,7 +305,7 @@ class Parser {
 				if(count($shortelems) != 3) {
 					throw new ParseCompileError("A short comparasion tag must have the form ~{..|..|..}", $this->name, $off);
 				}
-				
+
 				// TODO: What will happen, if a tag was in one of the elements?
 				list($a, $op, $b) = $shortelems;
 				$cmptag = new TagNode($this->name, $off);
@@ -313,7 +313,7 @@ class Parser {
 				$cmptag->params["text_a"] = $a;
 				$cmptag->params["op"] = $op;
 				$cmptag->params["text_b"] = $b;
-				
+
 				$astlist[] = $cmptag;
 				break;
 			case "sep":
@@ -331,14 +331,14 @@ class Parser {
 				return $elems;
 			}
 		}
-		
+
 		$elems[] = $astlist;
 		return $elems;
 	}
-	
+
 	private function parse_short($shortname, $openedat) {
 		$tplname = $this->name;
-		
+
 		return $this->parse_text(
 			self::ESCAPES_DEFAULT, /* Escapes */
 			self::PARSE_SHORT | self::PARSE_TAG, /* Flags */
@@ -351,25 +351,25 @@ class Parser {
 			$openedat /* Opened at */
 		);
 	}
-	
+
 	private function parse_var($openedat, $curly) {
 		$varnode = new VariableNode($this->name, $openedat);
 		$varnode->name = $this->get_name();
 		if(!$this->eof()) {
 			$varnode->arrayfields = $this->parse_array();
 		}
-		
+
 		if(($curly) && ($this->next() != "}")) {
 			throw new ParseCompileError("Unclosed '\${'", $this->name, $openedat);
 		}
 		return $varnode;
 	}
-	
+
 	private function parse_array() {
 		$tplname = $this->name;
-		
+
 		$arrayfields = array();
-		
+
 		while($this->next() == "[") {
 			$openedat = $this->off - 1;
 			$res = $this->parse_text(
@@ -385,30 +385,30 @@ class Parser {
 			);
 			$arrayfields[] = $res[0];
 		}
-		
+
 		$this->back();
 		return $arrayfields;
 	}
-	
+
 	private function parse_tag($openedat) {
 		$tplname = $this->name;
-		
+
 		$this->skip_ws();
 		$tag = new TagNode($this->name, $openedat);
 		$name = $tag->name = $this->get_name();
 		$tag->params = array();
 		$tag->sub = array();
-		
+
 		for(;;) {
 			$this->skip_ws();
-			
+
 			switch($this->next()) {
 			case '/': /* Self-closing tag */
 				$this->skip_ws();
 				if($this->next() != '>') {
 					throw new ParseCompileError("Unclosed opening <ste: tag (expected >)", $this->name, $openedat);
 				}
-				
+
 				return $tag;
 			case '>':
 				$sub = $this->parse_text(
@@ -426,20 +426,20 @@ class Parser {
 				return $tag;
 			default:
 				$this->back();
-				
+
 				$param = $this->get_name();
-				
+
 				$this->skip_ws();
 				if($this->next() != '=') {
 					throw new ParseCompileError("Expected '=' after tag parameter name", $this->name, $this->off - 1);
 				}
 				$this->skip_ws();
-				
+
 				$quot = $this->next();
 				if(($quot != '"') && ($quot != "'")) {
 					throw new ParseCompileError("Expected ' or \" after '=' of tag parameter", $this->name, $this->off - 1);
 				}
-				
+
 				$off = $this->off - 1;
 				$paramval = $this->parse_text(
 					self::ESCAPES_DEFAULT . $quot, /* Escapes */
diff --git a/src/ste/STECore.php b/src/ste/STECore.php
index b021e3b..36e3b18 100644
--- a/src/ste/STECore.php
+++ b/src/ste/STECore.php
@@ -18,13 +18,13 @@ class STECore {
 	 */
 	const ESCAPE_NONE = "none";
 	const ESCAPE_HTML = "html";
-	
+
 	private $tags;
 	private $storage_access;
 	private $cur_tpl_dir;
 	private $escape_method = self::ESCAPE_NONE;
 	public $scope;
-	
+
 	/*
 	 * Variables: Public variables
 	 * 
@@ -39,7 +39,7 @@ class STECore {
 	public $mute_runtime_errors = true;
 	public $fatal_error_on_missing_tag = false;
 	public $vars;
-	
+
 	/*
 	 * Constructor: __construct
 	 * 
@@ -50,17 +50,17 @@ class STECore {
 	public function __construct($storage_access, $escape_method=self::ESCAPE_NONE) {
 		$this->storage_access = $storage_access;
 		$this->escape_method = $escape_method;
-		
+
 		$this->cur_tpl_dir = "/";
 		STEStandardLibrary::_register_lib($this);
 		$this->blockorder = array();
 		$this->blocks = array();
-		
+
 		$this->vars = array();
 		$this->scope = new Scope();
 		$this->scope->vars =& $this->vars;
 	}
-	
+
 	/*
 	 * Function: register_tag
 	 * Register a custom tag.
@@ -81,7 +81,7 @@ class STECore {
 		}
 		$this->tags[$name] = $callback;
 	}
-	
+
 	/*
 	 * Function: call_tag
 	 * Calling a custom tag (builtin ones can not be called)
@@ -113,14 +113,14 @@ class STECore {
 			}
 		}
 	}
-	
+
 	public function autoescape($content) {
 		if ($this->escape_method == self::ESCAPE_HTML) {
 			return htmlspecialchars($content);
 		}
 		return $content;
 	}
-	
+
 	/*
 	 * Evaluate a $sub function (representing the contents of a tag) with a different escaping method for autoescape.
 	 * 
@@ -138,11 +138,11 @@ class STECore {
 		$this->escape_method = $old_method;
 		return $retval;
 	}
-	
+
 	public function calc($expression) {
 		return Calc::calc($expression);
 	}
-	
+
 	/*
 	 * Function: exectemplate
 	 * Executes a template and returns the result. The huge difference to <load> is that this function will also output all blocks.
@@ -162,14 +162,14 @@ class STECore {
 	public function exectemplate($tpl) {
 		$output = "";
 		$lastblock = $this->load($tpl);
-		
+
 		foreach($this->blockorder as $blockname) {
 			$output .= $this->blocks[$blockname];
 		}
-		
+
 		return $output . $lastblock;
 	}
-	
+
 	/*
 	 * Function: get_var_reference
 	 * Get a reference to a template variable using a variable name.
@@ -189,7 +189,7 @@ class STECore {
 		$ref = &$this->scope->get_var_reference($name, $create_if_not_exist);
 		return $ref;
 	}
-	
+
 	/*
 	 * Function: set_var_by_name
 	 * Set a template variable by its name.
@@ -205,7 +205,7 @@ class STECore {
 	public function set_var_by_name($name, $val) {
 		$this->scope->set_var_by_name($name, $val);
 	}
-	
+
 	/*
 	 * Function: set_local_var
 	 * Like <set_var_by_name>, but only sets the variable in the global scope (<set_var_by_name> will overwrite the variable in the parent scope, if it's defined there) .
@@ -220,7 +220,7 @@ class STECore {
 	public function set_local_var($name, $val) {
 		$this->scope->set_local_var($name, $val);
 	}
-	
+
 	/*
 	 * Function: get_var_by_name
 	 * Get a template variable by its name.
@@ -238,7 +238,7 @@ class STECore {
 	public function get_var_by_name($name) {
 		return $this->scope->get_var_by_name($name);
 	}
-	
+
 	/*
 	 * Function: load
 	 * Load a template and return its result (blocks not included, use <exectemplate> for this).
@@ -258,7 +258,7 @@ class STECore {
 	 */
 	public function load($tpl, $quiet = false) {
 		$tpldir_b4 = $this->cur_tpl_dir;
-		
+
 		/* Resolve ".", ".." and protect from possible LFI */
 		$tpl = str_replace("\\", "/", $tpl);
 		if($tpl[0] != "/") {
@@ -275,12 +275,12 @@ class STECore {
 		}
 		$tpl = implode("/", $pathex);
 		$this->cur_tpl_dir = dirname($tpl);
-		
+
 		if($quiet) {
 			$blocks_back     = clone $this->blocks;
 			$blockorder_back = clone $this->blockorder;
 		}
-		
+
 		$mode = StorageAccess::MODE_TRANSCOMPILED;
 		$content = $this->storage_access->load($tpl, $mode);
 		if($mode == StorageAccess::MODE_SOURCE) {
@@ -294,11 +294,11 @@ class STECore {
 			$this->storage_access->save($tpl, $transc, StorageAccess::MODE_TRANSCOMPILED);
 			eval("\$content = $transc;");
 		}
-		
+
 		$output = $content($this);
-		
+
 		$this->cur_tpl_dir = $tpldir_b4;
-		
+
 		if($quiet) {
 			$this->blocks     = $blocks_back;
 			$this->blockorder = $blockorder_back;
@@ -306,7 +306,7 @@ class STECore {
 			return $output;
 		}
 	}
-	
+
 	/*
 	 * Function: evalbool
 	 * Test, if a text represents false (an empty / only whitespace text) or true (everything else).
@@ -320,17 +320,17 @@ class STECore {
 	public function evalbool($txt) {
 		return trim(@(string)$txt) != "";
 	}
-	
+
 	public function make_closure($fx) {
 		$bound_scope = $this->scope;
 		return function() use($bound_scope, $fx) {
 			$args = func_get_args();
 			$ste = $args[0];
-			
+
 			$prev = $ste->scope;
 			$scope = $bound_scope->new_subscope();
 			$ste->scope = $scope;
-			
+
 			try {
 				$result = call_user_func_array($fx, $args);
 				$ste->scope = $prev;
diff --git a/src/ste/STEStandardLibrary.php b/src/ste/STEStandardLibrary.php
index 68ba06a..753ffd1 100644
--- a/src/ste/STEStandardLibrary.php
+++ b/src/ste/STEStandardLibrary.php
@@ -10,33 +10,33 @@ class STEStandardLibrary {
 			}
 		}
 	}
-	
+
 	static public function escape($ste, $params, $sub) {
 		$content = $ste->eval_sub_with_escaping($sub, STECore::ESCAPE_NONE);
-		
+
 		if($ste->evalbool(@$params["lines"])) {
 			return nl2br(htmlspecialchars(str_replace("\r\n", "\n", $content)));
 		} else {
 			return htmlspecialchars($content);
 		}
 	}
-	
+
 	static public function raw($ste, $params, $sub) {
 		return $ste->eval_sub_with_escaping($sub, STECore::ESCAPE_NONE);
 	}
-	
+
 	static public function autoescape($ste, $params, $sub) {
 		if(empty($params["mode"])) {
 			throw new RuntimeError("Missing mode parameter in <ste:arraylen>.");
 		}
-		
+
 		return $content = $ste->eval_sub_with_escaping($sub, $params['mode']);
 	}
-	
+
 	static public function strlen($ste, $params, $sub) {
 		return strlen($sub($ste));
 	}
-	
+
 	static public function arraylen($ste, $params, $sub) {
 		if(empty($params["array"])) {
 			throw new RuntimeError("Missing array parameter in <ste:arraylen>.");
@@ -44,7 +44,7 @@ class STEStandardLibrary {
 		$a = $ste->get_var_by_name($params["array"], false);
 		return (is_array($a)) ? count($a) : "";
 	}
-	
+
 	static public function inc($ste, $params, $sub) {
 		if(empty($params["var"])) {
 			throw new RuntimeError("Missing var parameter in <ste:inc>.");
@@ -52,7 +52,7 @@ class STEStandardLibrary {
 		$ref = &$ste->get_var_reference($params["var"], true);
 		$ref++;
 	}
-	
+
 	static public function dec($ste, $params, $sub) {
 		if(empty($params["var"])) {
 			throw new RuntimeError("Missing var parameter in <ste:dec>.");
@@ -60,11 +60,11 @@ class STEStandardLibrary {
 		$ref = &$ste->get_var_reference($params["var"], true);
 		$ref--;
 	}
-	
+
 	static public function date($ste, $params, $sub) {
 		return @strftime($sub($ste), empty($params["timestamp"]) ? @time() : (int) $params["timestamp"]);
 	}
-	
+
 	static public function in_array($ste, $params, $sub) {
 		if(empty($params["array"])) {
 			throw new RuntimeError("Missing array parameter in <ste:in_array>.");
@@ -75,14 +75,14 @@ class STEStandardLibrary {
 		}
 		return in_array($sub($ste), $ar) ? "y" : "";
 	}
-	
+
 	static public function join($ste, $params, $sub) {
 		if(empty($params["array"])) {
 			throw new RuntimeError("Missing array parameter in <ste:join>.");
 		}
 		return implode($sub($ste), $ste->get_var_by_name($params["array"]));
 	}
-	
+
 	static public function split($ste, $params, $sub) {
 		if(empty($params["array"])) {
 			throw new RuntimeError("Missing array parameter in <ste:split>.");
@@ -92,12 +92,12 @@ class STEStandardLibrary {
 		}
 		$ste->set_var_by_name($params["array"], explode($params["delim"], $sub($ste)));
 	}
-	
+
 	static public function array_add($ste, $params, $sub) {
 		if(empty($params["array"])) {
 			throw new RuntimeError("Missing array parameter in <ste:array_add>.");
 		}
-		
+
 		$ar = &$ste->get_var_reference($params["array"], true);
 		if(empty($params["key"])) {
 			$ar[] = $sub($ste);
@@ -105,20 +105,20 @@ class STEStandardLibrary {
 			$ar[$params["key"]] = $sub($ste);
 		}
 	}
-	
+
 	static public function array_filter($ste, $params, $sub)
 	{
 		if(empty($params["array"])) {
 			throw new RuntimeError("Missing array parameter in <ste:array_filter>.");
 		}
-		
+
 		$ar = $ste->get_var_by_name($params["array"]);
 		if(!is_array($ar)) {
 			throw new RuntimeError("Variable at 'array' is not an array.");
 		}
-		
+
 		$keys = array_keys($ar);
-		
+
 		if(!empty($params["keep_by_keys"])) {
 			$keep_by_keys = &$ste->get_var_reference($params["keep_by_keys"], false);
 			if(!is_array($keep_by_keys)) {
@@ -157,7 +157,7 @@ class STEStandardLibrary {
 			$ar = array_filter($ar, function($v) use ($delete_by_values) { return !in_array($v, $delete_by_values); });
 			$keys = array_keys($ar);
 		}
-		
+
 		$ste->set_var_by_name($params["array"], $ar);
 	}
 }
diff --git a/src/ste/Scope.php b/src/ste/Scope.php
index 26481ac..5249158 100644
--- a/src/ste/Scope.php
+++ b/src/ste/Scope.php
@@ -5,49 +5,49 @@ namespace kch42\ste;
 class Scope implements \ArrayAccess {
 	private $parent = NULL;
 	public $vars = array();
-	
+
 	private static function parse_name($name) {
 		$remain = $name;
 		$fields = array();
-		
+
 		while($remain !== "") {
 			$br_open = strpos($remain, '[');
 			if($br_open === false) {
 				$fields[] = $remain;
 				break;
 			}
-			
+
 			$br_close = strpos($remain, ']', $br_open);
 			if($br_close === false) {
 				throw new RuntimeError("Invalid varname \"$name\". Missing closing \"]\".");
 			}
-			
+
 			$fields[] = substr($remain, 0, $br_open);
-			
+
 			$field = substr($remain, $br_open+1, $br_close-$br_open-1);
 			$more = substr($remain, $br_close+1);
-			
+
 			if(strpos($field, '[') !== false) {
 				throw new RuntimeError("A variable field must not contain a '[' character.");
 			}
-			
+
 			if((strlen($more) > 0) && ($more[0] !== '[')) {
 				// TODO: better error message, not very non-programmer friendly...
 				throw new RuntimeError("A variable name must be of format name('[' name ']')*.");
 			}
-			
+
 			$remain = $field . $more;
 		}
-		
+
 		return $fields;
 	}
-	
+
 	private function &get_topvar_reference($name, $localonly) {
 		if(array_key_exists($name, $this->vars)) {
 			$ref = &$this->vars[$name];
 			return $ref;
 		}
-		
+
 		if((!$localonly) && ($this->parent !== NULL)) {
 			$ref = &$this->parent->get_topvar_reference($name, $localonly);
 			return $ref;
@@ -55,17 +55,17 @@ class Scope implements \ArrayAccess {
 
 		throw new VarNotInScope();
 	}
-	
+
 	public function &get_var_reference($name, $create_if_not_exist, $localonly=false) {
 		$nullref = NULL;
-		
+
 		$fields = self::parse_name($name);
 		if(count($fields) == 0) {
 			return $nullref; // TODO: or should we throw an exception here?
 		}
-		
+
 		$first = $fields[0];
-		
+
 		$ref = NULL;
 		try {
 			$ref = &$this->get_topvar_reference($first, $localonly);
@@ -77,55 +77,55 @@ class Scope implements \ArrayAccess {
 				return $nullref;
 			}
 		}
-		
+
 		for($i = 1; $i < count($fields); $i++) {
 			$field = $fields[$i];
-			
+
 			if(!is_array($ref)) {
 				return $nullref;
 			}
-			
+
 			if(!array_key_exists($field, $ref)) {
 				if(!$create_if_not_exist) {
 					return $nullref;
 				}
-				
+
 				if($i < count($fields) - 1) {
 					$ref[$field] = array();
 				} else {
 					$ref[$field] = "";
 				}
 			}
-			
+
 			$ref = &$ref[$field];
 		}
-		
+
 		return $ref;
 	}
-	
+
 	public function set_var_by_name($name, $val) {
 		$ref = &$this->get_var_reference($name, true);
 		$ref = $val;
 	}
-	
+
 	public function set_local_var($name, $val) {
 		$ref = &$this->get_var_reference($name, true, true);
 		$ref = $val;
 	}
-	
+
 	public function get_var_by_name($name) {
 		$ref = $this->get_var_reference($name, false);
 		return $ref === NULL ? "" : $ref;
 	}
-	
+
 	public function new_subscope() {
 		$o = new self();
 		$o->parent = $this;
 		return $o;
 	}
-	
+
 	/* implementing ArrayAccess */
-	
+
 	public function offsetSet($offset, $value) {
 		$this->set_var_by_name($offset, $value);
 	}
diff --git a/src/ste/StorageAccess.php b/src/ste/StorageAccess.php
index 81f7439..d5bab83 100644
--- a/src/ste/StorageAccess.php
+++ b/src/ste/StorageAccess.php
@@ -20,7 +20,7 @@ interface StorageAccess {
 	 */
 	const MODE_SOURCE        = 0;
 	const MODE_TRANSCOMPILED = 1;
-	
+
 	/*
 	 * Function: load
 	 * Loading a template.
@@ -38,7 +38,7 @@ interface StorageAccess {
 	 * 	Either the sourcecode or a callable function (first, and only parameter: an <STECore> instance).
 	 */
 	public function load($tpl, &$mode);
-	
+
 	/*
 	 * Function: save
 	 * Saves a template.
diff --git a/src/ste/Transcompiler.php b/src/ste/Transcompiler.php
index 9961b15..2519406 100644
--- a/src/ste/Transcompiler.php
+++ b/src/ste/Transcompiler.php
@@ -11,7 +11,7 @@ namespace kch42\ste;
  */
 class Transcompiler {
 	private static $builtins = NULL;
-	
+
 	public static function tempvar($typ) {
 		return $typ . '_' . str_replace('.', '_', uniqid('', true));
 	}
@@ -20,7 +20,7 @@ class Transcompiler {
 		if(self::$builtins !== NULL) {
 			return;
 		}
-		
+
 		self::$builtins = array(
 			"if" => array("\\kch42\\ste\\Transcompiler", "builtin_if"),
 			"cmp" => array("\\kch42\\ste\\Transcompiler", "builtin_cmp"),
@@ -41,13 +41,13 @@ class Transcompiler {
 			"calc" => array("\\kch42\\ste\\Transcompiler", "builtin_calc")
 		);
 	}
-	
+
 	private static function builtin_if($ast) {
 		$output = "";
 		$condition = array();
 		$then = NULL;
 		$else = NULL;
-		
+
 		foreach($ast->sub as $node) {
 			if(($node instanceof TagNode) and ($node->name == "then")) {
 				$then = $node->sub;
@@ -57,11 +57,11 @@ class Transcompiler {
 				$condition[] = $node;
 			}
 		}
-		
+
 		if($then === NULL) {
 			throw new ParseCompileError("self::Transcompile error: Missing <ste:then> in <ste:if>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		$output .= "\$outputstack[] = \"\";\n\$outputstack_i++;\n";
 		$output .= self::_transcompile($condition);
 		$output .= "\$outputstack_i--;\nif(\$ste->evalbool(array_pop(\$outputstack)))\n{\n";
@@ -83,9 +83,9 @@ class Transcompiler {
 			array('gt', '>'),
 			array('gte', '>=')
 		);
-		
+
 		$code = "";
-		
+
 		if(isset($ast->params["var_b"])) {
 			list($val, $pre) = self::_transcompile($ast->params["var_b"], true);
 			$code .= $pre;
@@ -96,7 +96,7 @@ class Transcompiler {
 		} else {
 			throw new ParseCompileError("self::Transcompile error: neiter var_b nor text_b set in <ste:cmp>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		if(isset($ast->params["var_a"])) {
 			list($val, $pre) = self::_transcompile($ast->params["var_a"], true);
 			$code .= $pre;
@@ -107,7 +107,7 @@ class Transcompiler {
 		} else {
 			throw new ParseCompileError("self::Transcompile error: neiter var_a nor text_a set in <ste:cmp>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		if(!isset($ast->params["op"])) {
 			throw new ParseCompileError("self::Transcompile error: op not given in <ste:cmp>.", $ast->tpl, $ast->offset);
 		}
@@ -160,14 +160,14 @@ class Transcompiler {
 		list($val, $pre) = self::_transcompile($ast->params["start"], true);
 		$code .= $pre;
 		$code .= "\$${loopname}_start = " . $val . ";\n";
-		
+
 		if(empty($ast->params["stop"])) {
 			throw new ParseCompileError("self::Transcompile error: Missing 'end' parameter in <ste:for>.", $ast->tpl, $ast->offset);
 		}
 		list($val, $pre) = self::_transcompile($ast->params["stop"], true);
 		$code .= $pre;
 		$code .= "\$${loopname}_stop = " . $val . ";\n";
-		
+
 		$step = NULL; /* i.e. not known at compilation time */
 		if(empty($ast->params["step"])) {
 			$step = 1;
@@ -178,17 +178,17 @@ class Transcompiler {
 			$code .= $pre;
 			$code .= "\$${loopname}_step = " . $val . ";\n";
 		}
-		
+
 		if(!empty($ast->params["counter"])) {
 			list($val, $pre) = self::_transcompile($ast->params["counter"], true);
 			$code .= $pre;
 			$code .= "\$${loopname}_countername = " . $val . ";\n";
 		}
-		
+
 		$loopbody = empty($ast->params["counter"]) ? "" : "\$ste->set_var_by_name(\$${loopname}_countername, \$${loopname}_counter);\n";
 		$loopbody .= self::_transcompile($ast->sub);
 		$loopbody = self::indent_code("{\n" . self::loopbody(self::indent_code($loopbody)) . "\n}\n");
-		
+
 		if($step === NULL) {
 			$code .= "if(\$${loopname}_step == 0)\n\tthrow new \\kch42\\ste\\RuntimeError('step can not be 0 in <ste:for>.');\n";
 			$code .= "if(\$${loopname}_step > 0)\n{\n";
@@ -205,39 +205,39 @@ class Transcompiler {
 		} else {
 			$code .= "for(\$${loopname}_counter = \$${loopname}_start; \$${loopname}_counter >= \$${loopname}_stop; \$${loopname}_counter += $step)\n$loopbody\n";
 		}
-		
+
 		return $code;
 	}
 	private static function builtin_foreach($ast) {
 		$loopname = self::tempvar("foreachloop");
 		$code = "";
-		
+
 		if(empty($ast->params["array"])) {
 			throw new ParseCompileError("self::Transcompile Error: array not given in <ste:foreach>.", $ast->tpl, $ast->offset);
 		}
 		list($val, $pre) = self::_transcompile($ast->params["array"], true);
 		$code .= $pre;
 		$code .= "\$${loopname}_arrayvar = " . $val . ";\n";
-		
+
 		if(empty($ast->params["value"])) {
 			throw new ParseCompileError("self::Transcompile Error: value not given in <ste:foreach>.", $ast->tpl, $ast->offset);
 		}
 		list($val, $pre) = self::_transcompile($ast->params["value"], true);
 		$code .= $pre;
 		$code .= "\$${loopname}_valuevar = " . $val . ";\n";
-		
+
 		if(!empty($ast->params["key"])) {
 			list($val, $pre) = self::_transcompile($ast->params["key"], true);
 			$code .= $pre;
 			$code .= "\$${loopname}_keyvar = " . $val . ";\n";
 		}
-		
+
 		if(!empty($ast->params["counter"])) {
 			list($val, $pre) = self::_transcompile($ast->params["counter"], true);
 			$code .= $pre;
 			$code .= "\$${loopname}_countervar = " . $val . ";\n";
 		}
-		
+
 		$loopbody = "";
 		$code .= "\$${loopname}_array = \$ste->get_var_by_name(\$${loopname}_arrayvar);\n";
 		$code .= "if(!is_array(\$${loopname}_array))\n\t\$${loopname}_array = array();\n";
@@ -245,7 +245,7 @@ class Transcompiler {
 			$code .= "\$${loopname}_counter = -1;\n";
 			$loopbody .= "\$${loopname}_counter++;\n\$ste->set_var_by_name(\$${loopname}_countervar, \$${loopname}_counter);\n";
 		}
-		
+
 		$loop = array();
 		$else = array();
 		foreach($ast->sub as $node) {
@@ -255,7 +255,7 @@ class Transcompiler {
 				$loop[] = $node;
 			}
 		}
-		
+
 		$loopbody .= "\$ste->set_var_by_name(\$${loopname}_valuevar, \$${loopname}_value);\n";
 		if(!empty($ast->params["key"])) {
 			$loopbody .= "\$ste->set_var_by_name(\$${loopname}_keyvar, \$${loopname}_key);\n";
@@ -263,14 +263,14 @@ class Transcompiler {
 		$loopbody .= "\n";
 		$loopbody .= self::_transcompile($loop);
 		$loopbody = "{\n" . self::loopbody(self::indent_code($loopbody)) . "\n}\n";
-		
+
 		if(!empty($else)) {
 			$code .= "if(empty(\$${loopname}_array))\n{\n";
 			$code .= self::indent_code(self::_transcompile($else));
 			$code .= "\n}\nelse ";
 		}
 		$code .= "foreach(\$${loopname}_array as \$${loopname}_key => \$${loopname}_value)\n$loopbody\n";
-		
+
 		return $code;
 	}
 	private static function builtin_infloop($ast) {
@@ -286,59 +286,59 @@ class Transcompiler {
 		if(empty($ast->params["name"])) {
 			throw new ParseCompileError("self::Transcompile Error: name missing in <ste:block>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		$blknamevar = self::tempvar("blockname");
-		
+
 		list($val, $code) = self::_transcompile($ast->params["name"], true);
 		$code .= "\$${blknamevar} = " . $val . ";\n";
-		
+
 		$tmpblk = uniqid("", true);
 		$code .= "\$ste->blocks['$tmpblk'] = array_pop(\$outputstack);\n\$ste->blockorder[] = '$tmpblk';\n\$outputstack = array('');\n\$outputstack_i = 0;\n";
-		
+
 		$code .= self::_transcompile($ast->sub);
-		
+
 		$code .= "\$ste->blocks[\$${blknamevar}] = array_pop(\$outputstack);\n";
 		$code .= "if(array_search(\$${blknamevar}, \$ste->blockorder) === false)\n\t\$ste->blockorder[] = \$${blknamevar};\n\$outputstack = array('');\n\$outputstack_i = 0;\n";
-		
+
 		return $code;
 	}
 	private static function builtin_load($ast) {
 		if(empty($ast->params["name"])) {
 			throw new ParseCompileError("self::Transcompile Error: name missing in <ste:load>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		list($val, $code) = self::_transcompile($ast->params["name"], true);
 		$code .= "\$outputstack[\$outputstack_i] .= \$ste->load(" . $val . ");\n";
 		return $code;
 	}
 	private static function builtin_mktag($ast) {
 		$code = "";
-		
+
 		if(empty($ast->params["name"])) {
 			throw new ParseCompileError("self::Transcompile Error: name missing in <ste:mktag>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		$fxbody = "\$outputstack = array(''); \$outputstack_i = 0;\$ste->set_local_var('_tag_parameters', \$params);\n";
-		
+
 		list($tagname, $tagname_pre) = self::_transcompile($ast->params["name"], true);
-		
+
 		$usemandatory = "";
 		if(!empty($ast->params["mandatory"])) {
 			$usemandatory = " use (\$mandatory_params)";
 			$code .= "\$outputstack[] = '';\n\$outputstack_i++;\n";
 			$code .= self::_transcompile($ast->params["mandatory"]);
 			$code .= "\$outputstack_i--;\n\$mandatory_params = explode('|', array_pop(\$outputstack));\n";
-			
+
 			$fxbody .= "foreach(\$mandatory_params as \$mp)\n{\n\tif(!isset(\$params[\$mp]))\n\t\tthrow new \\kch42\\ste\\RuntimeError(\"\$mp missing in <ste:\" . $tagname . \">.\");\n}";
 		}
-		
+
 		$fxbody .= self::_transcompile($ast->sub);
 		$fxbody .= "return array_pop(\$outputstack);";
-		
+
 		$code .= "\$tag_fx = \$ste->make_closure(function(\$ste, \$params, \$sub)" . $usemandatory . "\n{\n" . self::indent_code($fxbody) . "\n});\n";
 		$code .= $tagname_pre;
 		$code .= "\$ste->register_tag($tagname, \$tag_fx);\n";
-		
+
 		return $code;
 	}
 	private static function builtin_tagcontent($ast) {
@@ -348,37 +348,37 @@ class Transcompiler {
 		if(empty($ast->params["var"])) {
 			throw new ParseCompileError("self::Transcompile Error: var missing in <ste:set>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		$code = "\$outputstack[] = '';\n\$outputstack_i++;\n";
 		$code .= self::_transcompile($ast->sub);
 		$code .= "\$outputstack_i--;\n";
-		
+
 		list($val, $pre) = self::_transcompile($ast->params["var"], true);
 		$code .= $pre;
 		$code .= "\$ste->set_var_by_name(" . $val . ", array_pop(\$outputstack));\n";
-		
+
 		return $code;
 	}
 	private static function builtin_setlocal($ast) {
 		if(empty($ast->params["var"])) {
 			throw new ParseCompileError("self::Transcompile Error: var missing in <ste:set>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		$code = "\$outputstack[] = '';\n\$outputstack_i++;\n";
 		$code .= self::_transcompile($ast->sub);
 		$code .= "\$outputstack_i--;\n";
-		
+
 		list($val, $pre) = self::_transcompile($ast->params["var"], true);
 		$code .= $pre;
 		$code .= "\$ste->set_local_var(" . $val . ", array_pop(\$outputstack));\n";
-		
+
 		return $code;
 	}
 	private static function builtin_get($ast) {
 		if(empty($ast->params["var"])) {
 			throw new ParseCompileError("self::Transcompile Error: var missing in <ste:get>.", $ast->tpl, $ast->offset);
 		}
-		
+
 		list($val, $pre) = self::_transcompile($ast->params["var"],  true);
 		return "$pre\$outputstack[\$outputstack_i] .= \$ste->get_var_by_name(" . $val . ");";
 	}
@@ -386,10 +386,10 @@ class Transcompiler {
 		$code = "\$outputstack[] = '';\n\$outputstack_i++;\n";
 		$code .= self::_transcompile($ast->sub);
 		$code .= "\$outputstack_i--;\n\$outputstack[\$outputstack_i] .= \$ste->calc(array_pop(\$outputstack));\n";
-		
+
 		return $code;
 	}
-	
+
 	private static function indent_code($code) {
 		return implode(
 			"\n",
@@ -403,9 +403,9 @@ class Transcompiler {
 
 	private static function _transcompile($ast, $avoid_outputstack = false, $in_args = false) { /* The real self::transcompile function, does not add boilerplate code. */
 		$code = "";
-		
+
 		$text_and_var_buffer = array();
-		
+
 		foreach($ast as $node) {
 			if($node instanceof TextNode) {
 				$text_and_var_buffer[] = '"' . Misc::escape_text($node->text) . '"';
@@ -425,34 +425,34 @@ class Transcompiler {
 				} else {
 					$paramarray = self::tempvar("parameters");
 					$code .= "\$$paramarray = array();\n";
-					
+
 					foreach($node->params as $pname => $pcontent) {
 						list($pval, $pre) = self::_transcompile($pcontent, true, true);
 						$code .= $pre . "\$${paramarray}['" . Misc::escape_text($pname) . "'] = " . $pval . ";\n";
 					}
-					
+
 					$code .= "\$outputstack[\$outputstack_i] .= \$ste->call_tag('" . Misc::escape_text($node->name) . "', \$${paramarray}, ";
 					$code .= empty($node->sub) ? "function(\$ste) { return ''; }" : ("\$ste->make_closure(" . self::transcompile($node->sub) . ")");
 					$code .= ");\n";
 				}
 			}
 		}
-		
+
 		if($avoid_outputstack && ($code == "")) {
 			return array(implode (" . ", $text_and_var_buffer), "");
 		}
-		
+
 		if(!empty($text_and_var_buffer)) {
 			$code .= "\$outputstack[\$outputstack_i] .= ". implode (" . ", $text_and_var_buffer) . ";\n";
 		}
-		
+
 		if($avoid_outputstack) {
 			$tmpvar = self::tempvar("tmp");
 			$code = "\$outputstack[] = '';\n\$outputstack_i++;" . $code;
 			$code .= "\$$tmpvar = array_pop(\$outputstack);\n\$outputstack_i--;\n";
 			return array("\$$tmpvar", $code);
 		}
-		
+
 		return $code;
 	}
 
diff --git a/tests/mktest.sh b/tests/mktest.sh
index f249a7f..fb4facc 100755
--- a/tests/mktest.sh
+++ b/tests/mktest.sh
@@ -7,7 +7,7 @@ touch "$1/want"
 echo '<?php
 
 function test_func($ste) {
-	
+
 }' > "$1/code.php"
 
 echo 'have
diff --git a/tests/test.php b/tests/test.php
index f051d94..4baa4d7 100644
--- a/tests/test.php
+++ b/tests/test.php
@@ -15,12 +15,12 @@ class TestStorage implements ste\StorageAccess {
 		$mode = ste\StorageAccess::MODE_SOURCE;
 		return file_get_contents($tpl);
 	}
-	
+
 	public function save($tpl, $data, $mode) {
 		if($mode != ste\StorageAccess::MODE_TRANSCOMPILED) {
 			return;
 		}
-		
+
 		file_put_contents("$tpl.transc.php", $data);
 	}
 }
diff --git a/tests/test_autoescape/code.php b/tests/test_autoescape/code.php
index 9f73700..f88d229 100644
--- a/tests/test_autoescape/code.php
+++ b/tests/test_autoescape/code.php
@@ -8,7 +8,7 @@ $ste_initializer = function($sa) {
 
 function test_func($ste) {
 	$ste->vars['test'] = 'foo"&<bar>';
-	
+
 	$ste->register_tag('echoarg', function ($ste, $params, $sub) {
 		return $params['echo'];
 	});
diff --git a/tests/test_blocks/code.php b/tests/test_blocks/code.php
index de8c553..2e68d2d 100644
--- a/tests/test_blocks/code.php
+++ b/tests/test_blocks/code.php
@@ -1,5 +1,5 @@
 <?php
 
 function test_func($ste) {
-	
+
 }
diff --git a/tests/test_closure/code.php b/tests/test_closure/code.php
index de8c553..2e68d2d 100644
--- a/tests/test_closure/code.php
+++ b/tests/test_closure/code.php
@@ -1,5 +1,5 @@
 <?php
 
 function test_func($ste) {
-	
+
 }
diff --git a/tests/test_loop/code.php b/tests/test_loop/code.php
index de8c553..2e68d2d 100644
--- a/tests/test_loop/code.php
+++ b/tests/test_loop/code.php
@@ -1,5 +1,5 @@
 <?php
 
 function test_func($ste) {
-	
+
 }
diff --git a/tests/test_mktag/code.php b/tests/test_mktag/code.php
index de8c553..2e68d2d 100644
--- a/tests/test_mktag/code.php
+++ b/tests/test_mktag/code.php
@@ -1,5 +1,5 @@
 <?php
 
 function test_func($ste) {
-	
+
 }
diff --git a/tests/test_pseudotags/code.php b/tests/test_pseudotags/code.php
index de8c553..2e68d2d 100644
--- a/tests/test_pseudotags/code.php
+++ b/tests/test_pseudotags/code.php
@@ -1,5 +1,5 @@
 <?php
 
 function test_func($ste) {
-	
+
 }
diff --git a/tests/test_scoping/code.php b/tests/test_scoping/code.php
index de8c553..2e68d2d 100644
--- a/tests/test_scoping/code.php
+++ b/tests/test_scoping/code.php
@@ -1,5 +1,5 @@
 <?php
 
 function test_func($ste) {
-	
+
 }
diff --git a/tests/test_short/code.php b/tests/test_short/code.php
index de8c553..2e68d2d 100644
--- a/tests/test_short/code.php
+++ b/tests/test_short/code.php
@@ -1,5 +1,5 @@
 <?php
 
 function test_func($ste) {
-	
+
 }