%N islowerf %F $MIR/src/subs/match.for
%D Return true if char is a lowercase letter (a-z)
%P bpw
%: strings
%B
      logical function islowerf ( char )
      character*1 char

 Islowerf checks if the character char is a lowercase letter (a-z)
 and returns .true. if so, .false. if otherwise

 Input:
   char:    character to check
