case insensitive Pos

Question

Is there any comparable function like Pos that is not case-sensitive in D2010 (unicode)?

I know I can use Pos(AnsiUpperCase(FindString), AnsiUpperCase(SourceString)) but

Answer 1

Why not just convert the both the substring and the source string to lower or upper case within the regular Pos statement. The result will effectively be case-insensitive because both arguments are all in one case. Simple and lite.