F_COLLATEBR

Entrypoint collatebr not compatible with UTF-8 - if needed please ask

 Input          CSTRING(32760)         String in which special characters are to be converted
 Output         CSTRING(32760)         changed String

 Changes intended "umlauts" for given indications
 á, â, ã, à, ä, å, Á, Â, Ã, À, Ä, Å      => A
 é, ê, è, ë, É, Ê, È, Ë                         => E
 í, î, ì, ï, Í, Î, Ì, Ï                                 => I
 ó, ô, õ, ò, ö, Ó, Ô, Õ, Ò, Ö            => O
 ú, û, ù, ü,Ú, Û, Ù, Ü                        => U
 ç, Ç                                                => C
 ñ, Ñ                                                => N
 ý, ÿ, Ý                                            => Y

 TestSQL
 SELECT 'AAAAAAAAAAAA' AS ISCORRECT, F_COLLATEBR('áâãàäåÁÂÃÀÄÅ')
 FROM RDB$DATABASE;
 SELECT 'EEEEEEEE' AS ISCORRECT, F_COLLATEBR('éêèëÉÊÈË') FROM RDB$DATABASE;
 SELECT 'IIIIIIII' AS ISCORRECT, F_COLLATEBR('íîìïÍÎÌÏ') FROM RDB$DATABASE;
 SELECT 'OOOOOOOOOO' AS ISCORRECT, F_COLLATEBR('óôõòöÓÔÕÒÖ') FROM RDB$DATABASE;
 SELECT 'UUUUUUUU' AS ISCORRECT, F_COLLATEBR('úûùüÚÛÙÜ') FROM RDB$DATABASE;
 SELECT 'CC' AS ISCORRECT, F_COLLATEBR('çÇ') FROM RDB$DATABASE;
 SELECT 'NN' AS ISCORRECT, F_COLLATEBR('ñÑ') FROM RDB$DATABASE;
 SELECT NULL AS ISCORRECT, F_COLLATEBR(NULL) FROM RDB$DATABASE;