Implemented plugin architecture.

libs/plugins/modifier.count_sentences.php

@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * Smarty plugin
+ * -------------------------------------------------------------
+ * Type:     modifier
+ * Name:     count_sentences
+ * Purpose:  count the number of sentences in a text
+ * -------------------------------------------------------------
+ */
+function smarty_modifier_count_sentences($string)
+{
+    // find periods with a word before but not after.
+    return preg_match_all('/[^\s]\.(?!\w)/', $string, $match);
+}
+
+/* vim: set expandtab: */
+
+?>