Purpose
 
		 
		 Returns a character string with all the alphabetic characters from A to Z converted to their lowercase equivalent. 
		
 
	  
 
	 
 
	 Parameters
 
		 
		x is an expression of type character. Conversion occurs if needed.
		
 
	  
 
	 Examples
 
		 
		dcl s char (40) varying;
    
    s = 'Lead is an element with the symbol Pb';
    s = lowercase(s);
    put skip list (s);
 
		will print: 
		
 
		lead is an element with the symbol pb
 
	  
 
	 Restrictions
 
		 
		For structure expressions, only flat structures are allowed. Arrays, arrays of structures, and structure member arrays are not yet supported.