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roop

HN member
Joined
Tue, Mar 13, 2012, 5:27 AM UTC
HN karma
45
Public activity
38 items

About roop

Independent macOS and iOS developer.

http://roopc.net/

Recent public activity

  1. comment
    Comment #27079389

    I don’t know. You should contact Apple support maybe?

  2. comment
    Comment #27071735

    If you're using a USB hub/dock (the author says he isn't), you should upgrade to macOS 11.2.2 because: > macOS Big Sur 11.2.2 prevents MacBook Pro (2019 or later) and MacBook Air (…

  3. comment
    Comment #23236913

    > For commercial kegs, these sales are usually announced word of mouth, and I am not well connected enough to be in the loop I’d have thought if you had to be “in the loop” to know…

  4. comment
    Comment #22585927

    The WHO situation report for 06/Mar says: > For COVID-19, data to date suggest that 80% of infections are mild or asymptomatic, 15% are severe infection, requiring oxygen and 5% ar…

  5. comment
    Comment #16009831

    If your SDK is meant to be used as a binary framework or in any sort of compiled form (which is probably unlikely because you say it's going to be open source), I'd recommend Obj-C…

  6. story
  7. comment
    Comment #9598679

    For the kind of applications that Swift is intended for now (i.e. iOS / Mac apps), debug-mode runtime doesn't affect productivity very much as long as runtimes are fast enough to r…

  8. comment
    Comment #9595814

    > ... we learn that debug builds are often 100 times slower > than optimized builds (which themselves don't really > rival C). > Sorry, that's not the sign of a language that's > "…

  9. comment
    Comment #8307827

    Here they are: Post on declarative style: http://talk.commonmark.org/t/571 Syntax diff: https://github.com/vfmd/vfmd-spec/wiki/commonmark-vs-vfmd

  10. comment
    Comment #8283980

    Thanks. Really happy to see that you're open to a complete rewrite of the stmd spec (to a possible algorithm-based style). I'll be happy to open a post in talk.commonmark.org on th…

  11. comment
    Comment #8275058

    With PEGs, it's not possible to express nested content, so we have to collate for example the blockquoted content of blockquotes and process them separately. Per my understanding (…

  12. story
  13. comment
    Comment #8272843

    jgm, thanks for your comment. I have a lot of respect for your work in Markdown parsing (especially your PEG grammars and Babelmark2), which I find useful and valuable. I understan…

  14. comment
    Comment #8268941

    True, we can write a CFG that can accept any input, but not one that can parse Markdown. Actually, I should have said it's not possible to write an _unambiguous_ CFG for Markdown. …

  15. comment
    Comment #8267356

    It wasn't, but this is not a good way to build it either because (from my previous post): > A specification-by-example like this would have to keep an ever-growing list of corner c…

  16. comment
    Comment #8267039

    The problem is that there's no formal grammar and the spec of "Standard Markdown", while being more specific than John Gruber's, is still full of ambiguities. Some examples of ambi…

  17. story
  18. comment
    Comment #7936215

    Please see: http://www.vfmd.org/introduction/#prior-work

  19. comment
    Comment #7932681

    It's not possible to write a formal (non-PEG) grammar for Markdown. Hence, a spec, which is the next best thing (a la HTML5). Of course, vfmd is not a md-to-html converter, it's an…

  20. story
  21. comment
    Comment #6774652

    That's funny. I am really a CS guy. Just happened to work for a semiconductor company for a few years after college.

  22. comment
    Comment #6767664

    Man, that's one hell of a clickbait title.

  23. comment
    Comment #6738469

    You mean they don't always have to be "voltages". Agreed. I only wanted to emphasize that at the physical level, they are not discrete. In this case, they happen to be represented …

  24. comment
    Comment #6732057

    Presumably, you're already familiar with how the text in your text editor gets converted to a binary representation. The code that gets stored in the iPad's flash memory is already…

  25. story