Make LanguageConverter roman-numeral cases consistent

[lhc/web/wiklou.git] / languages / classes / LanguageSr.php

diff --git a/languages/classes/LanguageSr.php b/languages/classes/LanguageSr.php
index e0ff5e1..0ad7860 100644 (file)
--- a/languages/classes/LanguageSr.php
+++ b/languages/classes/LanguageSr.php
@@ -115,7 +115,8 @@ class SrConverter extends LanguageConverter {
                $breaks = '[^\w\x80-\xff]';
 
                // regexp for roman numbers
-               $roman = 'M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})';
+               // Lookahead assertion ensures $roman doesn't match the empty string
+               $roman = '(?=[MDCLXVI])M{0,4}(C[DM]|D?C{0,3})(X[LC]|L?X{0,3})(I[VX]|V?I{0,3})';
 
                $reg = '/^' . $roman . '$|^' . $roman . $breaks . '|' . $breaks
                        . $roman . '$|' . $breaks . $roman . $breaks . '/';