Version 1

[yaffs-website] / vendor / dflydev / placeholder-resolver / src / Dflydev / PlaceholderResolver / RegexPlaceholderResolver.php

diff --git a/vendor/dflydev/placeholder-resolver/src/Dflydev/PlaceholderResolver/RegexPlaceholderResolver.php b/vendor/dflydev/placeholder-resolver/src/Dflydev/PlaceholderResolver/RegexPlaceholderResolver.php
new file mode 100644 (file)
index 0000000..2085ab3
--- /dev/null
+++ b/vendor/dflydev/placeholder-resolver/src/Dflydev/PlaceholderResolver/RegexPlaceholderResolver.php
@@ -0,0 +1,69 @@
+<?php
+
+/*
+ * This file is a part of dflydev/placeholder-resolver.
+ *
+ * (c) Dragonfly Development Inc.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Dflydev\PlaceholderResolver;
+
+use Dflydev\PlaceholderResolver\DataSource\DataSourceInterface;
+
+class RegexPlaceholderResolver extends AbstractPlaceholderResolver
+{
+    /**
+     * @var PlaceholderResolverCallback
+     */
+    private $placeholderResolverCallback;
+
+    /**
+     * @var string
+     */
+    private $pattern;
+
+    /**
+     * Constructor
+     *
+     * @param DataSourceInterface $dataSource
+     * @param string|null         $placeholderPrefix
+     * @param string|null         $placeholderSuffix
+     */
+    public function __construct(DataSourceInterface $dataSource, $placeholderPrefix = '${', $placeholderSuffix = '}')
+    {
+        $this->placeholderResolverCallback = new RegexPlaceholderResolverCallback($dataSource);
+        $placeholderPrefix = preg_quote($placeholderPrefix);
+        $placeholderSuffix = preg_quote($placeholderSuffix);
+        $this->pattern = "/{$placeholderPrefix}([a-zA-Z0-9\.\(\)_\:]+?){$placeholderSuffix}/";
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function resolvePlaceholder($placeholder)
+    {
+        if ($this->getCache()->exists($placeholder)) {
+            return $this->getCache()->get($placeholder);
+        }
+
+        $value = $placeholder;
+        $counter = 0;
+
+        while ($counter++ < $this->maxReplacementDepth) {
+            $newValue = preg_replace_callback(
+                $this->pattern,
+                array($this->placeholderResolverCallback, 'callback'),
+                $value
+            );
+            if ($newValue === $value) { break; }
+            $value = $newValue;
+        }
+
+        $this->getCache()->set($placeholder, $value);
+
+        return $value;
+    }
+}