TweetFollow Us on Twitter

Nov 95 Dialog Box
Volume Number:11
Issue Number:11
Column Tag:Dialog Box

Dialog Box

By Neil Ticktin, Editor-in-Chief/Publisher

Dylan Lives

Jim Gagnon [Dialog Box, September] may have many reasons for not using Dylan. However, “...unreasonable to ... expect success from a proprietary language...” shouldn’t be one of them. [The fact that it isn’t out yet in ready-for-prime-time form is a reason.]

The language spec is in the public domain. The keepers are at CMU...take a look at

http://legend.gwydion.cs.cmu.edu:8001/dylan/

The name Dylan remains with Apple for the purpose of controlling its usage to conforming implementations (aging entertainers who themselves appropriated the name notwithstanding). Apple may someday have a Dylan implementation available for Mac developers. Meanwhile Dylan-like things are “all over” on other platforms (and Macintosh). They aren’t called Dylan because they aren’t yet (as in “Mindy”...Mindy Is Not Dylan Yet).

- John W. Baxter, Port Ludlow, WA

CGIs in C - Some Tweaks

Just a few notes on the article “Writing CGI Applications in C” in the September, 1995 issue of MacTech.

POST arguments can be up to 32k in size (not 24 as indicated on pg. 36). The username and password are both limited to 32 bytes.

You state on pg. 41 that “you can not allocate or release memory within a thread context.” This only applies to pre-emptive threads, which were only implemented in the 68K Thread Manager. Cooperative threads can do what the main application thread can do.

I haven’t looked at the responder code recently, but it used to be missing the call to MaxApplZone() during startup. That becomes quite necessary if the application is going to be dealing with large chunks of data.

Thanks for writing the article - I got some useful ideas from reading it!

- Grant Neufeld

According to John O’Fallon, the point about using memory within a thread context is true, but remeber that a call to MaxApplZone is required before threads allocate memory. See MacTech, November 1994, P. 68 for more details. There are many things that Responder doesn’t do, mainly because Responder is a simplified application to teach CGI programming. - Ed. nst

What Ever Happened to FORTRAN?

First, let me laud your publishing of articles on Prograph CPX. This certainly is the way of the future of programming on the Mac. Indeed it is a natural extension of the Mac’s iconic interface. I’m also delighted to find that there are two books in the offing concerning the programming of CPX. My background has been in the procedural languages, and I need some extra help in making the culture change to OOP.

Second, let me moan. In the past MacTutor and then MacTech gave coverage to the language I use most of the time - FORTRAN (LS FORTRAN). But the past year or so has seen a withering and then total absence of coverage of this language - first Jorg’s Folder, then Jorg, then FORTRANs from the Mail Order. I know it isn’t the most modern language, but there is a considerable opus of large scientific/engineering codes written in FORTRAN which have been debugged over decades. Those who use these codes are first of all rather intimidated by the idea of converting them to other more modern languages due to their size and second do not relish the large amount of time it will take to make the new codes as reliable as the existing FORTRAN codes. So, I don’t think that FORTRAN is dead by any means and it is disappointing not to have Jorg’s Folder any more, especially with the evolution of the Power Mac versions of FORTRAN.

- Stu Cook, Mt St Hilaire, Quebec

[Stu: Our biggest reason for not running FORTRAN articles is that we’ve not seen anything worthy of printing. While FORTRAN articles shouldn’t get the same volume of coverage that C++ or even Pascal should (since there are more users of those languages), it does deserve coverage. We’re open to publishing FORTRAN articles - anyone interested in writing one? - Ed. nst]

But, You Missed The Point

Thank you for your comments at the end of my letter complaining about Symantec’s C++ 8.0, but I think you missed the point of my last comment.

If it would be so hard to write a PowerPC version of THINK Pascal, then how about a compiler that will accept THINK Pascal source code and produce native PowerPC object code. We programmers could do our program development using the present THINK Pascal development environment in the 680x0 emulator.

The THINK Pascal 4.0.2 compiler in the emulator is so much faster than any native C or C++ compiler that there is no real speed penalty for using the present compiler. After we have a working 680x0 program, we can feed the source code to the PowerPC compiler to produce the final code.

Since we will only be using this compiler a few times per program development cycle, it can be a slow dog like the Symantec C and C++ compilers. It doesn’t have to have an editor and debugger like a real development environment. It just has to reliably compile previously proven code that was developed using the present excellent THINK Pascal development environment.

- Fred Johnson, Knoxville, Illinois

[Fred, your prayers have (or will) be answered shortly. Will Iverson at Symantec tells us that Symantec has come to an agreement with Language Systems Corp. LS will provide an Object Pascal compiler that will drop into the Symantec Project Manager environment that should compile THINK Pascal 4.0.2 source code. For more information, contact Language Systems can be reached at http://www.langsys.com/langsys or 800-252-6479.

In addition, there is a version of the Universal Headers modified to work with THINK Pascal that Symantec will make available by the end of October, 1995. These files will be available on the next SDA CD and probably online. Check the MacTech web site (http://www.mactech.com/special.html) or the Symantec site for more information - Ed. nst]

[Many thanks to:

0 Daniel Lidoff, Atascadero, California

JTenor11@aol.com

S.A. Klein, Madison, Wisconsin

Anthony Panos

Luman Wing

Chris F. Riley, Miami, Florida

who also expressed similar opinions about wanting to bring THINK Pascal to Power Macintosh. - Ed. nst]

Brain Damaged Languages?

Fred Johnson hit the nail on the head with his letter, printed in the Dialog Box section of the March issue of MacTech. He praised the editor and linker of THINK Pascal, as compared to those of Symantec C++. But he did not go far enough [to fully expose the languages behind the environments].

I, like Johnson, am somewhat of a Mac hacker. I have programmed the Mac professionally, but I consider myself to be an engineer who programs rather than a programmer. I have programmed using THINK Pascal, THINK C, and Microsoft QuickBASIC.

The BEST feature about THINK Pascal is its debugger, LightsBug. It is superb and clearly better than anything else I have used. (Why hasn’t Symantec made the C/C++ debugger more like LightsBug?) I can examine all global and local variables immediately, without having to first select them for display as in the THINK C debugger. I can see the chain of calling routines, examine register variables, look through the heap, modify variables, and set watch points. And I can also examine and set memory directly.

I also share Johnson’s opinion of C and C++ (or rather, Symantec’s “C with objects”, which is as close as I have gotten to C++.) Both are a mess. For example, what kind of brain-dead language knows the type of a variable in a “printf()” function call, yet makes the programmer specify it again with a formatting control code? I end up debugging my “printf()” function calls. (And that is just one example. I could go on and on.)

I made two serious efforts to learn “C with objects” but gave up in frustration both times. Object Pascal was a breeze after wrestling with C. (Even the manuals bear this out: the “Object Pascal” chapter is 14 pages for version 4 of Pascal; the “Using Objects in Think C” chapter is 37 pages for version 5 of C.)

The Object Pascal implementation of object-oriented programming is simple and elegant. With the use of just 3 additional keywords (“object”, “inherited”, and “override”) and one function (“member()”), I can program in an OOP language. Although I can’t speak from experience with C++, if my experience with “C with objects” is any indication, C++ is a mess.

The world seems to have run after C, but after using both, I don’t know why. C is best described as a cryptic high-level assembler. Pascal is a well-designed high-level language. C’mon Symantec, support Pascal.

- Steve Ross, steve_ross@smtp.svl.trw.com

Criticism of Programming Style

I just received the winning solution to the programmers problem. It uses several goto statements and is not object oriented. As the only programming journal for the Mac it would be nice if you’d adopt a more “progressive” approach to teaching programming. Old notions of “efficiency” are passe.

- Don Winston

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

OpenOffice 4.1.7 - Free and open-source...
OpenOffice.org is both an Open Source product and a project. The product is a multi-platform office productivity suite. It includes the key desktop applications, such as a word processor, spreadsheet... Read more
Backup and Sync 3.46 - File backup and s...
Backup and Sync (was Google Drive) is a place where you can create, share, collaborate, and keep all of your stuff. Whether you're working with a friend on a joint research project, planning a... Read more
iClock 5.5 - Customizable menu bar clock...
iClock replaces the old Apple's default menu bar clock with more features, customization and increases your productivity. Features: Have your Apple or Google calendar instantly available from the... Read more
Garmin Express 6.18.0.0 - Manage your Ga...
Garmin Express is your essential tool for managing your Garmin devices. Update maps, golf courses and device software. You can even register your device. Update maps Update software Register your... Read more
MarsEdit 4.3.5 - Quick and convenient bl...
MarsEdit is a blog editor for OS X that makes editing your blog like writing email, with spell-checking, drafts, multiple windows, and even AppleScript support. It works with with most blog services... Read more
Xcode 11.0 - Integrated development envi...
Xcode includes everything developers need to create great applications for Mac, iPhone, iPad, and Apple Watch. Xcode provides developers a unified workflow for user interface design, coding, testing... Read more
DaisyDisk 4.8 - $9.99
DaisyDisk allows you to visualize your disk usage and free up disk space by quickly finding and deleting big unused files. The program scans your disk and displays its content as a sector diagram... Read more
VMware Fusion 11.5.0 - Run Windows apps...
VMware Fusion and Fusion Pro - virtualization software for running Windows, Linux, and other systems on a Mac without rebooting. The latest version includes full support for Windows 10, macOS Mojave... Read more
Apple Configurator 2.10 - Configure and...
Apple Configurator makes it easy to deploy iPad, iPhone, iPod touch, and Apple TV devices in your school or business. Use Apple Configurator to quickly configure large numbers of devices connected to... Read more
Spotify 1.1.15.448. - Stream music, crea...
Spotify is a streaming music service that gives you on-demand access to millions of songs. Whether you like driving rock, silky R&B, or grandiose classical music, Spotify's massive catalogue puts... Read more

Latest Forum Discussions

See All

Marvel Strike Force is adding Agent Coul...
Marvel Strike Force, the popular squad-based RPG, is set to receive a bunch of new content over the next few weeks. [Read more] | Read more »
Lots of premium games are going free (so...
You may have seen over the past couple weeks a that a bunch of premium games have suddenly become free. This isn’t a mistake, nor is it some last hurrah before Apple Arcade hits, and it’s important to know that these games aren’t actually becoming... | Read more »
Yoozoo Games launches Saint Seiya Awaken...
If you’re into your anime, you’ve probably seen or heard of Saint Seiya. Based on a shonen manga by Masami Kurumada, the series was massively popular in the 1980s – especially in its native Japan. Since then, it’s grown into a franchise of all... | Read more »
Five Nights at Freddy's AR: Special...
Five Nights at Freddy's AR: Special Delivery is a terrifying new nightmare from developer Illumix. Last week, FNAF fans were sent into a frenzy by a short teaser for what we now know to be Special Delivery. Those in the comments were quick to... | Read more »
Rush Rally 3's new live events are...
Last week, Rush Rally 3 got updated with live events, and it’s one of the best things to happen to racing games on mobile. Prior to this update, the game already had multiplayer, but live events are more convenient in the sense that it’s somewhat... | Read more »
Why your free-to-play racer sucks
It’s been this way for a while now, but playing Hot Wheels Infinite Loop really highlights a big issue with free-to-play mobile racing games: They suck. It doesn’t matter if you’re trying going for realism, cart racing, or arcade nonsense, they’re... | Read more »
Steam Link Spotlight - The Banner Saga 3
Steam Link Spotlight is a new feature where we take a look at PC games that play exceptionally well using the Steam Link app. Our last entry talked about Terry Cavanaugh’s incredible Dicey Dungeons. Read about how it’s a great mobile experience... | Read more »
Combo Quest (Games)
Combo Quest 1.0 Device: iOS Universal Category: Games Price: $.99, Version: 1.0 (iTunes) Description: Combo Quest is an epic, time tap role-playing adventure. In this unique masterpiece, you are a knight on a heroic quest to retrieve... | Read more »
Hero Emblems (Games)
Hero Emblems 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: ** 25% OFF for a limited time to celebrate the release ** ** Note for iPhone 6 user: If it doesn't run fullscreen on your device... | Read more »
Puzzle Blitz (Games)
Puzzle Blitz 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Puzzle Blitz is a frantic puzzle solving race against the clock! Solve as many puzzles as you can, before time runs out! You have... | Read more »

Price Scanner via MacPrices.net

11″ WiFi iPad Pros on sale today for up to $2...
Amazon has new 2018 Apple 11″ WiFi iPad Pros in stock today and on sale for up to $200 off Apple’s MSRP. These are the same iPad Pros sold by Apple in its retail and online stores. Be sure to select... Read more
Select 12″ iPad Pros on sale for $200 off App...
Amazon has select 2018 Apple 12″ iPad Pros in stock today and on sale for $200 off Apple’s MSRP. These are the same iPad Pros sold by Apple in its retail and online stores. Be sure to select Amazon... Read more
Get one of Apple’s new 2019 iPhone 11 models...
Boost Mobile is offering the new 2019 Apple iPhone 11, iPhone 11 Pro, and 11 Pro Max for $100 off MSRP. Their discount reduces the cost of an iPhone 11 to $599 for the 64GB models, $899 for the 64GB... Read more
13″ 1.4GHz Silver MacBook Pros on sale for $1...
B&H Photo has new 2019 13″ 1.4GHz 4-Core Touch Bar Silver MacBook Pros on sale for $100 off Apple’s MSRP. Overnight shipping is free to many addresses in the US. These are the same MacBook Pros... Read more
4-core and 6-core 2018 Mac minis available at...
Apple has Certified Refurbished 2018 Mac minis available on their online store for $120-$170 off the cost of new models. Each mini comes with a new outer case plus a standard Apple one-year warranty... Read more
$250 prepaid Visa card with any Apple iPhone,...
Xfinity Mobile will include a free $250 prepaid Visa card with the purchase of any new iPhone, new line activation, and transfer of phone number to Xfinity Mobile. Offer is valid through October 27,... Read more
Sprint is offering the 64GB Apple iPhone 11 P...
Sprint has the new 64GB iPhone 11 Pro available for $12.50 per month for new customers with an eligible trade-in in of iPhone 7 or newer. That’s down from their standard monthly lease of $41.67. The... Read more
Final week: Apple’s 2019 Back to School Promo...
Purchase a new Mac using Apple’s Education discount, and take up to $400 off MSRP. All teachers, students, and staff of any educational institution with a .edu email address qualify for the discount... Read more
Save $30 on Apple’s AirPods at these reseller...
Amazon is offering discounts on new 2019 Apple AirPods ranging up to $30 off MSRP as part of their Labor Day sale. Shipping is free: – AirPods with Charging Case: $144.95 $15 off MSRP – AirPods with... Read more
Preorder your Apple Watch Series 5 today at A...
Amazon has Apple Watch Series 5 GPS models available for preorder and on sale today for $15 off Apple’s MSRP. Shipping is free and starts on September 20th: – 40mm Apple Watch Series 5 GPS: $384.99 $... Read more

Jobs Board

Systems Analyst ( *Apple* & Android) (Jo...
Systems Analyst ( Apple & Android) (Job ID: 572513) + 11751 Meadowville Ln, Chester, VA 23836, USA + Full-time Company Description Computer Consultants International, Read more
*Apple* Mobile App Developer - eiWorkflow So...
…eiWorkflow Solutions, LLC is currently looking for a consultant for the following role. Apple Mobile App Developer Tasks the role will be performing: ? Mobile App Read more
Essbase Developer - *Apple* - Theorem, LLC...
Job Summary Apple is seeking an experienced, detail-minded Essbase developer to join our worldwide business development and strategy team. If you are someone who Read more
Student Employment (Blue *Apple* Cafe) Spri...
Student Employment (Blue Apple Cafe) Spring 2019 Penn State University Campus/Location: Penn State Brandywine Campus City: Media, PA Date Announced: 12/20/2018 Date Read more
Best Buy *Apple* Computing Master - Best Bu...
**732093BR** **Job Title:** Best Buy Apple Computing Master **Job Category:** Store Associates **Location Number:** 001441-Beaumont-Store **Job Description:** The Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.