Here is a sample file to demonstrate 2 issues I ran into last night.
The docs note that you don't need to seed random, but, every time I run random (at least on a given day, I haven't tried across days) I get the same result
The other issue is with a for/else blocks not working as expected when testing passed args[] against known values, e.g. args[2] ~ "-l"
[edited to add that I'm using a version of lilt built form source the same day that Decker 1.7 was announced here on itch]
Thank you for explaining your issues in more detail!
In Decker, the random seed is pre-initialized to a random value. In Lilt, it is consistently seeded out of the box. From the Lilt Documentation:
Choose y random elements from x. In Lilt, sys.seed is always pre-initialized to a constant.
The idea behind this is that Lilt behaves deterministically until you explicitly want randomness, which simplifies testing. This is also how random numbers have always worked in the K interpreter. I admit that this might be a footgun for the unwary, so I'll give changing the default some thought. For now, you can initialize the RNG with something like
sys.seed:sys.ms
I gave your argument-parsing example a spin, and it works as expected for me. The "elseif" construct was introduced in Decker/Lilt version 1.16. In older versions of Lilt, "elseif" was not a keyword, so it would have just been a reference to an undefined variable with a value of 0, and then the predicate would similarly have been evaluated and then discarded. This explains why you're seeing the code behave as if the 'elseif args[2] ~ "-m"' line doesn't exist.
If you're using 1.7, please rebuild from source or download a fresh executable- there have been many improvements, bugfixes and additions in the last 9 releases. :)
Thank you! This was super helpful. I'd totally misunderstood how the random seed was expected to work -- what you've described here makes a lot of sense to me, now, and with that things are working a-okay.
Also, I'm feeling foolish to admit that I thought I was running 1.17, but was actually a few versions behind on lilt 🤦 that was totally my bad!
Perhaps fewer hairy edges than I initially thought! In the end, the only hairy edge was me.
