Basic Argument handling

Let's look at this snippet

#import Std
#import Math
#import Modules

fun int get_ncycles() {
  if(me.args())
    return me.arg(0) => Std.atoi;
  return 2;
}

fun float get_user_duration() {
  if(me.args() > 1)
    return me.arg(1) => Std.atof;
  return 1;
}

fun dur get_duration() {
  return get_user_duration()::second;
}


get_ncycles() => const int ncycles;
get_duration() => var dur duration;

1 => var int compensate;
const SinOsc s ~> dac;

while(duration >= samp) {
  repeat(ncycles * compensate) {
    Math.rand2f(220, 880) => s.freq;
    duration => now;
  }
  duration/2. => duration;
  2 *=> compensate;
}

Yes, it's almost the same as the previous one, but this one provides argument handling.

For instance this function:

fun int get_ncycles() {
  if(me.args())
    return me.arg(0) => Std.atoi;
  return 2;
}

checks if the file was called with any arguments, using me.args().

If there is at least one argument, we get it as a string, using me.arg(0) since we want the first argument, then we get the int value out of it, with Std.atoi.

If there is no argument, it defaults to 2.

built with mdr and mdBook
You'll find the source here, Luke!

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