cm3 VS specification

Compare cm3 vs specification and see what are their differences.

specification

The Oberon+ Programming Language Specification (by oberon-lang)
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cm3 specification
3 7
132 90
1.5% -
3.7 3.6
15 days ago 9 months ago
C HTML
GNU General Public License v3.0 or later GNU General Public License v3.0 only
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cm3

Posts with mentions or reviews of cm3. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-01-18.

specification

Posts with mentions or reviews of specification. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-01-18.
  • Niklaus Wirth, or the Importance of Being Simple
    3 projects | news.ycombinator.com | 18 Jan 2024
    Great, thanks!

    There are books online for free, e.g.

    https://people.inf.ethz.ch/wirth/ProgInOberonWR.pdf

    and https://ssw.jku.at/Research/Books/Oberon2.pdf

    Oberon+ is a superset of Oberon 90 and Oberon-2. Here is more information: https://oberon-lang.github.io/, and here is the current language specification: https://github.com/oberon-lang/specification/blob/master/The.... I already had valuable feedback here on HN concerning the channel extensions. Further research brought me to the conclusion, that Oberon+ should support both, channels and also monitors, because even in Go, the sync package primitives are used twice as much as channels. Mutexes and condition variables can be emulated with channels (I tried my luck here: https://www.quora.com/How-can-we-emulate-mutexes-and-conditi...), but for efficiency reasons I think monitors should be directly supported in the language as well, even if it might collide with the goal of simplicity.

    Feel free to comment here or e.g. in https://github.com/rochus-keller/Oberon/discussions/45.

  • Show HN: Towards Oberon+ concurrency; request for comments
    6 projects | news.ycombinator.com | 25 Dec 2023
    Oberon+ already has generics and they should play well with my present proposal: https://github.com/oberon-lang/specification/blob/master/The...

    > Most of the time people don't want unbounded and unknown lifetimes on the executors, but instead want to be able to see that directly in the code.

    You mean something like join? This can easily be done by adding a channel on which each thread of the interesting group sends when finished. Thanks for the link, I will have a look at it.

  • The Oberon+ Programming Language
    2 projects | news.ycombinator.com | 18 Mar 2023
    A proc is a function with no return.

    A function is a function that returns something.

    Oberon+ keeps it's predecessors' idiotic distinction, but takes it one step further: both functions and procedures are decalred with `proc` or `procedure`, functions are `proc`s that have a return type.

    And yet:

    - procedure calls don't have to specify parameters apparently, but function calls must specify all parameters

    - functions cannot be used in Oberon+'s weird exception handling. [1] You do a call with `PCALL(res, P, args)` where res is a variable that will hold the result of the exception if it happened, and P is the procedure. You cannot pass functions (aka procedures which have a return type)

    As the spec so wonderfully says [2],

    --- start quote ---

    There are two kinds of procedures: proper procedures and function procedures. The latter are activated by a function designator as a constituent of an expression and yield a result that is an operand of the expression. Proper procedures are activated by a procedure call. A procedure is a function procedure if its formal parameters specify a result type. Each control path of a function procedure must return a value.

    --- end quote ---

    [1] https://github.com/oberon-lang/specification/blob/master/The...

    [2] https://github.com/oberon-lang/specification/blob/master/The...

  • GCC 13 to support Modula-2: Follow-up to Pascal lives on in FOSS form
    2 projects | news.ycombinator.com | 19 Dec 2022
    > Although the relative plethora of Oberon variants [..] suggests that maybe it was still not quite fully evolved.

    That's a reasonable conclusion, but one has to consider that most variants came from academia and focused on specific scientific questions, not on the adaptation to practical needs of the industry.

    > it would be possible to re-unify them under one standard, in the way that Common Lisp managed to do

    I did that with Oberon+ which unifies Oberon, Oberon-07 and Oberon-2.

    It also includes ideas of Component Pascal and Active Oberon (though I don't like the syntax of these two languages very much).

    See https://oberon-lang.github.io/2021/07/16/comparing-oberon+-w... and https://github.com/oberon-lang/specification/blob/master/The....

  • V Language Review (2022)
    19 projects | news.ycombinator.com | 18 Jun 2022
    > ...from the point of definition to the end of the scope..

    Not sure what you mean. Is it about the fact that all variables are declared in the header of the procedure, i.e. not somewhere in the body as e.g. in C# or Java? This is actually the same with Active Oberon and Modula-3 (though the latter can have nested blocks like Ada). In case you mean that the order of declarations is relevant, Oberon+ assumes at least a two phase parser by design; a declaration sequence can contain more than one CONST, TYPE and VAR section in arbitrary order, interleaved with procedures, and the order of declaration is not relevant; see e.g. https://github.com/oberon-lang/specification/blob/master/The...

  • Open source vs proprietary compiler
    2 projects | /r/Compilers | 27 May 2022
    PL/SQL and Ada are powerful languages but rather complex and likely not well suited for beginner courses. Delphi is great, but actually I prefer the type-bound procedure notation introduced with Oberon-2 and also adopted by Go. The original Oberon syntax is a bit old-fashioned, but there is a more modern variant, Oberon+, which supports both the old and more modern syntax and a few more streamlined Oberon-style features, and should appeal more to the younger generations. See https://github.com/oberon-lang/specification.
  • Modern programming languages require generics
    1 project | news.ycombinator.com | 23 May 2022
    Here is an example: https://oberon-lang.github.io/, see section Generic Programming; note how the modules have type parameters and how generic modules are instantiated by the import declaration in section Object Oriented Programming.

    Here is the specification: https://github.com/oberon-lang/specification/blob/master/The...

    Here is a discussion why it is designed like this

What are some alternatives?

When comparing cm3 and specification you can also consider the following projects:

Turbo-Modula-2-Reloaded - This is a Modula-2 system (operating system + compiler + editor) for tiny microcomputers with 64 KB ram : it has a 16-bit address space. Despite being issued from a reverse-engineering of Borland Turbo Modula-2 for CP/M, it has been re-engineered to be run on any platform, provided that the bytecode interpreter is ported to that platform.

tccbin

vos - Vinix is an effort to write a modern, fast, and useful operating system in the V programming language

vc - V compiler's source translated from V to C

x-language-review - Reviews of up and coming programming languages

Oberon - Oberon parser, code model & browser, compiler and IDE with debugger

ved - 1 MB text editor written in V with hardware accelerated text rendering. Compiles in <1s.

CspChan - A pure C (-std=c89) implementation of Go channels, including blocking and non-blocking selects.

plan9port - Plan 9 from User Space

v - Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io

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