procedure( NlDecrypt( inputFile @optional outputFile "tt")
prog( (inp out line)
if( inputFile then
unless( outputFile
outputFile = sprintf(nil "%s.dec" inputFile)
)
when( isFile( outputFile )
print( "You must specify a file that doesn't exist!!!\n" )
hiGetAttention( )
return()
)
unless( inp = infile(inputFile)
printf("Unable to open input file: %s\n" inputFile)
return()
)
unless( out = outfile(outputFile "w")
printf("Unable to open output file: %s\n" outputFile)
return()
)
while( line = lineread(inp)
when( line != t
pprint(line out)
)
)
close(inp)
close(out)
else
printf("You must at least specify an input file!\n")
return()
) ; ** if inputFile **
return(t)
) ; ** let **
) ; ** procedure **
