Unicode字符串的快速序列对齐

I want to run something like the BLAST algorithm to query a large database of unicode strings. Most of the alignment software like BLAST expects nucleotide or protein strings as input. But my input could potentially contain any unicode character. Is anyone aware of a piece of software that will let me do this? The scoring matrix could just be the identity matrix (no partial matching.)I want to run something like the BLAST algorith