- (string-ci=? string[1] string[2] string[3] ...)procedure
- (string-ci<? string[1] string[2] string[3] ...)procedure
- (string-ci>? string[1] string[2] string[3] ...)procedure
- (string-ci<=? string[1] string[2] string[3] ...)procedure
- (string-ci>=? string[1] string[2] string[3] ...)procedure
The "-ci" procedures behave as if they applied string-foldcase to their arguments before invoking the corresponding procedures without “-ci”.