From: Jeff Patterson <jeff_patterson@...>
Date: 2008-03-30T23:45:45+09:00
Subject: Re: stumped

Joel VanderWerf wrote:
> Joel VanderWerf wrote:

> 
> On second thought, since you're evaling the input, you might want to
> hook your simulation engine up to irb. This uses readline, too, but has
> the advantage of maintaining program state between lines, so that you
> can define local vars, methods, etc. Also, it accepts multiline inputs.
> 

Thanks for your suggestions. I tried the irb approach and while command 
history is very nice.

The error I am (still) getting turns out to stem from the fact that in 
the loop I was trying to execute, I said "yield" instead of "yield 1". 
Is there a way to default a parameter passed to a block the same way you 
can default arguments passed to a method? i.e if @sim is my netlist 
whose run method reads in the commands, I want to do something like

@sim.run{|cyc =1|  # ERROR
    while (cyc>0)
       ...advance the simulator cyc cycles
    end
  }

I tried
@sim.run{|cyc|
 cyc ||= 1
 ...

which keeps the program from bombing but I still get the warning

Thanks for your help!

Jeff
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