Massive overhaul of Mustache.php's whitespace handling.

Move regex preparation into methods, use named subpatterns so the regex makes more sense. Fix the logic around eating newlines adjacent to tags. Update tests to reflect the changes.

examples/complex/complex.mustache

@@ -1,16 +1,16 @@
 <h1>{{header}}</h1>
 {{#notEmpty}}
-  <ul>
-  {{#item}}
-    {{#current}}
-      <li><strong>{{name}}</strong></li>
-    {{/current}}
-    {{^current}}
-      <li><a href="{{url}}">{{name}}</a></li>
-    {{/current}}
-  {{/item}}
-  </ul>
+<ul>
+{{#item}}
+{{#current}}
+    <li><strong>{{name}}</strong></li>
+{{/current}}
+{{^current}}
+    <li><a href="{{url}}">{{name}}</a></li>
+{{/current}}
+{{/item}}
+</ul>
 {{/notEmpty}}
 {{#isEmpty}}
-  <p>The list is empty.</p>
+<p>The list is empty.</p>
 {{/isEmpty}}

examples/complex/complex.txt

@@ -1,6 +1,6 @@
 <h1>Colors</h1>
 <ul>
-  <li><strong>red</strong></li>
+    <li><strong>red</strong></li>
     <li><a href="#Green">green</a></li>
     <li><a href="#Blue">blue</a></li>
-    </ul>
+</ul>

examples/double_section/double_section.mustache

@@ -1,7 +1,7 @@
 {{#t}}
-  * first
+* first
 {{/t}}
 * {{two}}
 {{#t}}
-  * third
+* third
 {{/t}}

examples/grand_parent_context/grand_parent_context.mustache

@@ -1,10 +1,7 @@
 {{grand_parent_id}}
 {{#parent_contexts}}
-{{grand_parent_id}}
-{{parent_id}}
-{{#child_contexts}}
-{{grand_parent_id}}
-{{parent_id}}
-{{child_id}}
-{{/child_contexts}}
+  {{parent_id}} ({{grand_parent_id}})
+  {{#child_contexts}}
+    {{child_id}} ({{parent_id}} << {{grand_parent_id}})
+  {{/child_contexts}}
 {{/parent_contexts}}

examples/grand_parent_context/grand_parent_context.txt

@@ -1,17 +1,7 @@
 grand_parent1
-grand_parent1
-parent1
-grand_parent1
-parent1
-parent1-child1
-grand_parent1
-parent1
-parent1-child2
-grand_parent1
-parent2
-grand_parent1
-parent2
-parent2-child1
-grand_parent1
-parent2
-parent2-child2
+  parent1 (grand_parent1)
+    parent1-child1 (parent1 << grand_parent1)
+    parent1-child2 (parent1 << grand_parent1)
+  parent2 (grand_parent1)
+    parent2-child1 (parent2 << grand_parent1)
+    parent2-child2 (parent2 << grand_parent1)

examples/inverted_double_section/inverted_double_section.mustache

@@ -1,7 +1,7 @@
 {{^t}}
-  * first
+* first
 {{/t}}
 * {{two}}
 {{^t}}
-  * third
+* third
 {{/t}}

examples/sections_spaces/SectionsSpaces.php

@@ -1,14 +0,0 @@
-<?php
-
-class SectionsSpaces extends Mustache {
-	public $start = "It worked the first time.";
-
-	public function middle() {
-		return array(
-			array('item' => "And it worked the second time."),
-			array('item' => "As well as the third."),
-		);
-	}
-
-	public $final = "Then, surprisingly, it worked the final time.";
-}

examples/sections_spaces/sections_spaces.mustache

@@ -1,9 +0,0 @@
- * {{ start }}
-{{# middle }}
- * {{ item }}
-{{/ middle }}
- * {{ final }}
-
- * {{ start }}
-{{# middle }} * {{ item }}{{/ middle }}
- * {{ final }}

examples/sections_spaces/sections_spaces.txt

@@ -1,9 +0,0 @@
- * It worked the first time.
- * And it worked the second time.
- * As well as the third.
- * Then, surprisingly, it worked the final time.
-
- * It worked the first time.
- * And it worked the second time.
- * As well as the third.
- * Then, surprisingly, it worked the final time.