From 4d018fa255659a7c922b37500448a4a258bccbdc Mon Sep 17 00:00:00 2001
From: Silvio <silvio@devlet.com.br>
Date: Wed, 30 Jun 2010 11:33:54 -0300
Subject: Stronger bracket handling at IsisConnector

---
 classes/IsisConnector.php | 49 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 48 insertions(+), 1 deletion(-)

diff --git a/classes/IsisConnector.php b/classes/IsisConnector.php
index f0e5335..db5ac9d 100644
--- a/classes/IsisConnector.php
+++ b/classes/IsisConnector.php
@@ -281,7 +281,54 @@ class IsisConnector {
    *   Array of matched strings.
    */
   public function explodeBrackets($subject) {
-    $values = preg_split('/[<\s>]+/', $subject, -1, PREG_SPLIT_NO_EMPTY);
+    preg_match_all('/<[^<>]*>/', $subject, $values);
+
+    // Why this doesn't work?
+    //$values = preg_replace(array('/</', '/>/'), '', $values);
+
+    foreach ($values[0] as $key => $value) {
+      $values[$key] = preg_replace(array('/</', '/>/'), '', $value);
+    }
+
     return $values;
   }
+
+  /**
+   * Check if a string has brackets.
+   *
+   * @param $value
+   *   String to be compared.
+   * @return
+   *   True if string has brackets, false otherwise.
+   */
+  public function hasBrackets($value) {
+    if (strstr($value, '<') && strstr($value, '>')) {
+      return TRUE;
+    }
+
+    return FALSE;
+  }
+
+  /**
+   * Explode values from fields or subfields. Split values
+   * inside brackets if needed, but then doesn't return any
+   * value outside brackets.
+   *
+   * @param $value
+   *   String with values.
+   * @return
+   *   Array with values.
+   */
+  public function explodeValue($value) {
+    if ($this->hasBrackets($value)) {
+      return $this->explodeBrackets($value);
+    }
+    else {
+      if (!is_array($value)) {
+        $value = array($value);
+      }
+    }
+
+    return $value;
+  }
 }
-- 
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