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different file, an introvert. Modula II was out there again. Interfacing other languages. It was a great language for real world problems. Definitely an extrovert. Oberon (an Oberon-2) have their own environment again. They don't want to touch the real world. And although they are nicely written languages, they are not good for much beyond teaching. A major introvert.
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1258:). I do not want to get involved in an edit war, so am asking other editors to weigh in on this. If it is not liked or doubted that V belongs there, then the same should hold for Go. These are similar languages, with both creators stating their influence. Please refer to Robert Griesemer's talk to see how this is so, here-
800:-- Funny analysis :-). To me, the main characteristic of Wirth's languages are the warts :-P (not by evolution, but on purpose... i cannot understand that...). For example: Oberon has operators "&" and "OR". Why the former is a symbol and the latter is a word? This looks stupid (and i'm inclined to think that it
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No, that's not right. Oberon-2 is one of my favourite languages simply because it IS useful for things beside teaching. Remember, the Obeon-2 compiler and operating system were written in Oberon-2, so it can certainly claim a place as a systems programming language. Oberon is a bigger better Pascal,
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It should perhaps also be stated or clarified (based on the comment Chris made) that to influence another language doesn't mean that code must be identical, the languages resemble each other in every aspect, or be a direct descendant. Rather the creators of the newer language can be stating what
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This has been discussed here and elsewhere, but I'm not sure what came about from the discussion. Can the Oberon-1 and Oberon-2 pages be merged into just an Oberon page? There wasn't really an "Oberon-1", there was just Oberon, and then Oberon-2, and now Oberon-07. Each of the changes/revisions
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Good idea. I'm not too worried about the ListClass example as anybody who would be able to understand the additional details could fill in the blanks anyway. However the 'birds' example surely could be replaced with something more realistic. Shapes (rectangles, squares, circles) and their areas
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Niklaus Wirth's languages have very striking differences, hidden among their similarities. Almost
Introvert/extrovert. For example Algol could talk to any other language, and be mixed in to build a product, an extrovert. Pascal in it's native form would have to be recompiled to point to a
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perhaps? However, this is an encyclopaedia so again, just a skeleton illustrating the main issues is sufficient. Examples should include valid declarations statements, expressions etc. but it is not necessary (or advisable) to include complete compilable working examples.
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The same could be said about all of the other reserved words and keywords (BEGIN, END, PROCEDURE etc) in the EBNF. However, as they are all uppercase they can already easily be distinguished from the 'productions' in the EBNF so the quotation characters are superfluous.
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Oh, good. Yes, I agree. Code examples in a dictionary should be primarily (a) understandable - hence short, (b) useful - hence showing a range of language elements, and (c) correct. My concern about compilability relates to the third point.
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The example relies on changing the pointer value of the receiver. Propagating this change to the preceding node would require the receiver parameter to be variable which is not allowed for pointer types in
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686:"Designed by Niklaus Wirth, Hanspeter Mössenböck" gives a wrong impression. Hanspeter Mössenböck designed the language as an extension of Oberon. He is also the first author of the Language report:
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stupid). And Pascal had the wrong precedence for "and" and "or", which forced you to always use parenthesis (among other annoyances). I could never find a rationale for those decisions. -- unsigned
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Most compilers generate code that requires the dynamic type of the receiver when calling type-bound procedures. As mentioned above, the dynamic type is not available for
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The creators of the programming languages Go and V (Vlang) were both influenced by Oberon-2 (in similar ways), and have publicly stated so on their websites. Refer to
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Does anyone mind if I make the code examples a bit clearer? Most of them don't do anything when they run, and some of them don't even compile cleanly.
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and Pascal has been used for a great many real-world applications, including (until recently) the user interface system at the London Stock
Exchange.
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I replaced the list example altogether because it has several problems and is thus not as illustrative as the example given in the Oberon-2 report:
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I concede this point does not take effekt until there are more types in a hierarchy, and the static type of the pointer used to call
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their influences were, that specific aspects of their languages are similar, or are derived from a particular older concept.
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Why do the code examples have the pointer variable names declared with * as if this was C? Does Oberon require this?
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So
Niklaus has had plenty of time to write yet another extrovert language, but I am not seeing anything out there.
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1121:. A text will be as short summary. Its planned to add section History too. Then one can mention Keiko in section
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I think it would be best to take fragments of code from the papers and key reference books, where possible.
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In section "Implementations" I suggest to replace external link "Keiko
Virtual Machine" by new page
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You need to get an article on V approved before adding references to it elsewhere on
Knowledge. -
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on
Knowledge. If you would like to participate, please visit the project page, where you can join
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The Add procedure uses recursion to traverse the list which potentially causes stack overflows.
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1262:. The code for V would be similar. Thank you for your time and consideration in advance.
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linking to that page which explains why it needs to be used on that page. Please check
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http://spivey.oriel.ox.ac.uk/corner/Design_overview_for_OBC#The_Keiko_Abstract_Machine
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Requested articles/Applied arts and sciences/Computer science, computing, and
Internet
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when used here. In particular, for each page the image is used on, it must have an
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parameter l should be VAR because it is changed, when the List is empty
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It appears that the #Keico_bytecode section is not yet big enough to
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Thank you for that reference link; I've added it to this article.
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C-Class Free and open-source software articles of Low-importance
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That this article is linked to from the image description page.
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Find pictures for the biographies of computer scientists (see
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on the image's description page for the use in this article.
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The source of information for the summary of extensions is
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redirect to the #Keico_bytecode section of this article. --
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and thus doesn't carry any useful type information?
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may be too technical for most readers to understand
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968:). But how can Oberon perform dynamic binding to
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1098:. For assistance on the image use policy, see
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1117:. An introduction about Keiko is written on
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891:PROCEDURE (l : List) Add* (v : Integer);
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721:, without removing the technical details.
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42:Put new text under old text.
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998:(where
940:Is the
923:Claystu
713:Please
532:Infobox
470:Cleanup
417:history
314:on the
237:CompSci
199:C-class
154:WPÂ refs
142:scholar
750:Merge?
513:Expand
276:, and
205:scale.
126:Google
996:::Add
596:Stubs
570:Photo
427:purge
422:watch
403:with:
169:JSTOR
130:books
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412:edit
162:FENS
136:news
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1028:NIL
991:or
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717:to
306:Low
176:TWL
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