anchor.diff:                           ${optionalString (attrByPath ["createPFB"] true args) ''Generate($1:r + ".pfb");''}
                            ${optionalString (attrByPath ["createMAP"] true args) ''Generate($1:r + ".map");''}
                            ${optionalString (attrByPath ["createENC"] true args) ''Generate($1:r + ".enc");''}
  -                        ' $i; 
  +                        ' $i;
           done
      '') ["minInit" "addInputs" "doUnpack"];
   
  -   installFonts = 
  +   installFonts =
         let retrievedName = (if args ? name then args.name else ""); in
      fullDepEntry (''
              mkdir -p $out/share/fonts/truetype/public/${retrievedName}
  
positive.code:         " else if (archiveType s) == "empty" then "
  	        echo No source to unpack - doing nothing ..
          " else (abort "unknown archive type : ${s}"))+
                  # goSrcDir is typically something like "cd mysubdir" .. but can be anything else 
                  (if args ? goSrcDir then args.goSrcDir else "")
          ) ["minInit"];
  
  
negative.code:                             return 0
                              ;;
                      esac
  
                      pkgs=\"\$pkgs \$pkg \"
  
                          echo \$pkg
  