commit 32ecd96e60b3b2355d94987b9ca649afd3092269
Author: jerico.dev <jerico.dev@gmail.com>
Date:   Tue Nov 16 01:44:38 2010 -0200

    *6119* "References" header appears when there are no references

diff --git a/classes/citation/CitationListTokenizerFilter.inc.php b/classes/citation/CitationListTokenizerFilter.inc.php
index 6213311..5b24a95 100644
--- a/classes/citation/CitationListTokenizerFilter.inc.php
+++ b/classes/citation/CitationListTokenizerFilter.inc.php
@@ -36,11 +36,17 @@ class CitationListTokenizerFilter extends Filter {
 	function &process(&$input) {
 		// The default implementation assumes that raw citations are
 		// separated with line endings.
-		// 1) Remove empty lines and normalize line endings
+		// 1) Remove empty lines and normalize line endings.
 		$input = String::regexp_replace('/[\r\n]+/s', "\n", $input);
-		// 2) Break up at line endings
-		$citations = explode("\n", $input);
-		// 3) Remove numbers from the beginning of each citation
+		// 2) Remove trailing/leading line breaks.
+		$input = trim($input, "\n");
+		// 3) Break up at line endings.
+		if (empty($input)) {
+			$citations = array();
+		} else {
+			$citations = explode("\n", $input);
+		}
+		// 4) Remove numbers from the beginning of each citation.
 		foreach($citations as $index => $citation) {
 			$citations[$index] = String::regexp_replace('/^\s*[\[#]?[0-9]+[.)\]]?\s*/', '', $citation);
 		}
diff --git a/tests/classes/citation/CitationListTokenizerFilterTest.inc.php b/tests/classes/citation/CitationListTokenizerFilterTest.inc.php
index a8bcdb6..32aaf3d 100755
--- a/tests/classes/citation/CitationListTokenizerFilterTest.inc.php
+++ b/tests/classes/citation/CitationListTokenizerFilterTest.inc.php
@@ -30,6 +30,9 @@ class CitationListTokenizerFilterTest extends PKPTestCase {
 			'citation4'
 		);
 		self::assertEquals($expectedResult, $tokenizer->process($rawCitationList));
+
+		$rawCitationList = '';
+		self::assertEquals(array(), $tokenizer->process($rawCitationList));
 	}
 }
 ?>