PM Programming Language

With the recent release of PM 0.4 and the positive reception to my PM presentation at CIUK2023 , it seems like a good time to bring back the PM blog after a long hiatus. Another good reason for its resurrection is that I feel that I now have built the basic semantics of the language into something like a coherent whole, giving me something concrete to write about. There have been a few major changes to the language since my last blog entry. The main syntactic change has been the shift from keyword-delimited control statements to curly-brackets. This is not a statement on my part as to the merits of the two approaches, I am generally agnostic in this debate which can border on the religious. It was simply that with the way that the language was developing, the keyword approach was getting cumbersome – frequently used constructs were taking up far to much space and impeding readability. PM now uses curly brackets to terminate statements and semicolons to separate (and optionally terminat...