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  1. While writing Design Patterns with Delphi, I spent quite some time researching existing literature on design patterns implementation in Delphi, design patterns in other languages, other types of patterns, design principles and so on … In case you would like to dig deeper than the book takes you, here is my reading list. Design Patterns Essentials Software design pattern Computer Science Design Patterns The 23 patterns from the GoF Design Patterns with examples in different languages (including Delphi) Gang of Four Design Patterns Reference Sheet Programming principles Design principles and design patterns SOLID Don't Repeat Yourself (DRY) KISS YAGNI (You Ain't Gonna Need It) Software Design Patterns Are Not Goals, They Are Tools I'm Sick Of GoF Design Patterns Software Development AntiPatterns Big Ball of Mud Design Patterns for Humans Spring4D MMX Code Explorer Singleton https://en.wikipedia.org/wiki/Singleton_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Singleton http://www.yanniel.info/2010/10/singleton-pattern-delphi.html https://ibeblog.com/2010/08/18/delphi-singleton-patterns/ https://stackoverflow.com/a/1409672/4997 https://github.com/jimmckeeth/DelphiPatterns/tree/master/Creational.Singleton https://stackoverflow.com/questions/1409593/creating-a-singleton-in-delphi-using-the-new-features-of-d2009-and-d2010 https://sourcemaking.com/design_patterns/singleton https://schellingerhout.github.io/design%20patterns/design-patterns-creational-delphi/ https://github.com/kamranahmedse/design-patterns-for-humans#-singleton Dependency injection https://en.wikipedia.org/wiki/Dependency_injection http://www.nickhodges.com/post/Service-Locator-is-Indeed-an-Anti-pattern.aspx https://softwareengineering.stackexchange.com/questions/135914/why-was-dependency-injection-pattern-not-included-in-the-gang-of-four/135982 https://stackoverflow.com/questions/4176520/what-is-the-difference-between-strategy-pattern-and-dependency-injection Lazy Initialization https://en.wikipedia.org/wiki/Lazy_initialization Object pool https://en.wikipedia.org/wiki/Object_pool_pattern https://sourcemaking.com/design_patterns/object_pool Factory method https://en.wikipedia.org/wiki/Factory_method_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Factory_method https://github.com/jimmckeeth/DelphiPatterns/tree/master/Creational.FactoryMethod https://sourcemaking.com/design_patterns/factory_method https://schellingerhout.github.io/design%20patterns/design-patterns-creational-delphi/ https://github.com/kamranahmedse/design-patterns-for-humans#-factory-method Abstract factory https://en.wikipedia.org/wiki/Abstract_factory_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Abstract_Factory http://www.felix-colibri.com/papers/design_patterns/factory_and_bridge_patterns/factory_and_bridge_patterns.html#abstract_factory_pattern https://github.com/jimmckeeth/DelphiPatterns/tree/master/Creational.AbstractFactory http://www.nickhodges.com/post/Delphi-and-the-Factory-Pattern-Simple-Factory.aspx https://sourcemaking.com/design_patterns/abstract_factory https://schellingerhout.github.io/design%20patterns/design-patterns-creational-delphi/ https://github.com/kamranahmedse/design-patterns-for-humans#-abstract-factory Prototype https://sourcemaking.com/design_patterns/prototype https://schellingerhout.github.io/design%20patterns/design-patterns-creational-delphi/ https://en.wikipedia.org/wiki/Object_copying#Deep_copy https://github.com/kamranahmedse/design-patterns-for-humans#-prototype Builder https://en.wikipedia.org/wiki/Builder_pattern https://github.com/jimmckeeth/DelphiPatterns/tree/master/Creational.Builder https://sourcemaking.com/design_patterns/builder https://schellingerhout.github.io/design%20patterns/design-patterns-creational-delphi/ https://github.com/kamranahmedse/design-patterns-for-humans#-builder Composite https://en.wikipedia.org/wiki/Composite_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Composite https://github.com/jimmckeeth/DelphiPatterns/tree/master/Structural.Composite https://sourcemaking.com/design_patterns/composite https://github.com/kamranahmedse/design-patterns-for-humans#-composite Flyweight https://en.wikipedia.org/wiki/Flyweight_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Flyweight https://sourcemaking.com/design_patterns/flyweight https://github.com/kamranahmedse/design-patterns-for-humans#-flyweight https://en.wikipedia.org/wiki/String_interning Marker interface https://en.wikipedia.org/wiki/Marker_interface_pattern Bridge https://stackoverflow.com/questions/350404/how-do-the-proxy-decorator-adapter-and-bridge-patterns-differ https://en.wikipedia.org/wiki/Bridge_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Bridge https://github.com/jimmckeeth/DelphiPatterns/tree/master/Structural.Bridge https://sourcemaking.com/design_patterns/bridge http://www.felix-colibri.com/papers/design_patterns/factory_and_bridge_patterns/factory_and_bridge_patterns.html#the_bridge_design_pattern https://simpleprogrammer.com/design-patterns-simplified-the-bridge-pattern/ https://github.com/kamranahmedse/design-patterns-for-humans#-bridge https://stackoverflow.com/q/319728/4997 Adapter https://en.wikipedia.org/wiki/Adapter_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Adapter https://github.com/jimmckeeth/DelphiPatterns/tree/master/Structural.Adapter https://sourcemaking.com/design_patterns/adapter https://github.com/kamranahmedse/design-patterns-for-humans#-adapter Proxy https://en.wikipedia.org/wiki/Proxy_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Proxy https://github.com/jimmckeeth/DelphiPatterns/tree/master/Structural.Proxy https://sourcemaking.com/design_patterns/proxy https://github.com/kamranahmedse/design-patterns-for-humans#-proxy Decorator https://en.wikipedia.org/wiki/Decorator_pattern https://github.com/jimmckeeth/DelphiPatterns/tree/master/Structural.Decorator https://sourcemaking.com/design_patterns/decorator https://github.com/kamranahmedse/design-patterns-for-humans#-decorator Facade https://en.wikipedia.org/wiki/Facade_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Facade https://github.com/jimmckeeth/DelphiPatterns/tree/master/Structural.Facade https://sourcemaking.com/design_patterns/facade https://github.com/kamranahmedse/design-patterns-for-humans#-facade Null object https://en.wikipedia.org/wiki/Null_object_pattern https://sourcemaking.com/design_patterns/null_object Template method https://en.wikipedia.org/wiki/Template_method_pattern https://github.com/jimmckeeth/DelphiPatterns/tree/master/Behavioral.TemplateMethod https://www.codeproject.com/Articles/516094/TemplateplusMethodplusDesignplusPatternplusinplusD https://sourcemaking.com/design_patterns/template_method https://github.com/kamranahmedse/design-patterns-for-humans#-template-method Command https://en.wikipedia.org/wiki/Command_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Command https://github.com/jimmckeeth/DelphiPatterns/tree/master/Behavioral.Command https://sourcemaking.com/design_patterns/command https://github.com/kamranahmedse/design-patterns-for-humans#-command https://stackoverflow.com/q/6064116/4997 State https://en.wikipedia.org/wiki/State_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/State https://github.com/jimmckeeth/DelphiPatterns/tree/master/Behavioral.State https://sourcemaking.com/design_patterns/state https://sourcemaking.com/design_patterns/state/delphi https://github.com/kamranahmedse/design-patterns-for-humans#-state https://en.wikipedia.org/wiki/Finite-state_machine Iterator https://en.wikipedia.org/wiki/Iterator_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Iterator https://github.com/jimmckeeth/DelphiPatterns/tree/master/Behavioral.Iterator https://sourcemaking.com/design_patterns/iterator https://github.com/kamranahmedse/design-patterns-for-humans#-iterator http://docwiki.embarcadero.com/RADStudio/Tokyo/en/Declarations_and_Statements_(Delphi)#For_Statements Visitor https://en.wikipedia.org/wiki/Visitor_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Visitor https://github.com/jimmckeeth/DelphiPatterns/tree/master/Behavioral.Visitor https://sourcemaking.com/design_patterns/visitor https://sourcemaking.com/design_patterns/visitor/delphi https://github.com/kamranahmedse/design-patterns-for-humans#-visitor Observer https://en.wikipedia.org/wiki/Observer_pattern https://en.wikipedia.org/wiki/Publish–subscribe_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Observer https://github.com/jimmckeeth/DelphiPatterns/tree/master/Behavioral.Observer https://github.com/spinettaro/delphi-event-bus https://sourcemaking.com/design_patterns/observer/delphi https://github.com/kamranahmedse/design-patterns-for-humans#-observer http://docwiki.embarcadero.com/Libraries/en/System.Messaging.TMessageManager http://docwiki.embarcadero.com/RADStudio/en/Using_the_RTL_Cross-Platform_Messaging_Solution http://docwiki.embarcadero.com/RADStudio/en/Sending_and_Receiving_Messages_Using_the_RTL http://docwiki.embarcadero.com/Libraries/en/System.Classes.TComponent.Observers Memento https://en.wikipedia.org/wiki/Memento_pattern https://en.wikibooks.org/wiki/Computer_Science_Design_Patterns/Memento https://github.com/jimmckeeth/DelphiPatterns/tree/master/Behavioral.Memento https://sourcemaking.com/design_patterns/memento https://github.com/kamranahmedse/design-patterns-for-humans#-memento Lock https://en.wikipedia.org/wiki/Lock_(computer_science) https://en.wikipedia.org/wiki/Spinlock Lock striping https://netjs.blogspot.si/2016/05/lock-striping-in-java-concurrency.html Double-checked locking https://en.wikipedia.org/wiki/Double-checked_locking https://en.wikipedia.org/wiki/Test_and_test-and-set Optimistic locking https://www.javaworld.com/article/2075406/java-web-development/optimistic-locking-pattern-for-ejbs.html https://martinfowler.com/eaaCatalog/optimisticOfflineLock.html https://en.wikipedia.org/wiki/Optimistic_concurrency_control Readers-writer lock https://en.wikipedia.org/wiki/Readers–writer_lock https://docs.microsoft.com/en-us/windows/desktop/sync/slim-reader-writer--srw--locks Thread pool https://en.wikipedia.org/wiki/Thread_pool https://stackoverflow.com/questions/47504201/delphi-ttask-and-tthreadpool Messaging https://en.wikipedia.org/wiki/Message_passing https://en.wikipedia.org/wiki/Message_queue Future https://en.wikipedia.org/wiki/Futures_and_promises Pipeline https://en.wikipedia.org/wiki/Staged_event-driven_architecture Designing Delphi programs https://en.wikipedia.org/wiki/Event-driven_programming http://blong.com/Articles/Actions/Actions.htm https://github.com/andrea-magni/TFrameStand https://martinfowler.com/eaaCatalog/tableModule.html https://stackoverflow.com/questions/433819/table-module-vs-domain-model http://docwiki.embarcadero.com/RADStudio/en/LiveBindings_in_RAD_Studio https://www.embarcadero.com/images/dm/technical-papers/understanding_rad_studio_livebindings.pdf Other kinds of patterns https://en.wikipedia.org/wiki/Exception_handling http://wiki.c2.com/?ExceptionPatterns http://docwiki.embarcadero.com/Libraries/en/System.TObject.Destroy http://www.heaventools.com/eurekalog-exception-logger.htm http://www.madshi.net/madExceptDescription.htm https://github.com/project-jedi/jvcl https://en.wikipedia.org/wiki/Debugging_patterns https://git-scm.com/docs/git-bisect http://www.washi.cs.waseda.ac.jp/wp-content/uploads/2017/03/Woei-Kae-Chen.pdf https://github.com/colinj/Functional https://fsharpforfunandprofit.com/fppatterns/ https://en.wikipedia.org/wiki/Comparison_of_programming_paradigms Books & papers Architectural Patterns, Pethuru Raj, Anupama Raman, Harihara Subramanian Coding in Delphi, Nick Hodges Concurrency with Modern C++, Rainer Grimm Concurrent Patterns and Best Practices, Atul S. Khot Dependency Injection in Delphi, Nick Hodges Design Patterns for Humans, Kamran Ahmed Design Patterns Past and Future, Aleksandar Bulajic Design Patterns - Elements of Reusable Object-Oriented Software, Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides Dive Into Design Patterns, Alexander Shvets Java Design Patterns, Devendra Singh More Coding in Delphi, Nick Hodges The Null Object Pattern, Bobby Woolf
  2. jbg

    IDE Fix Pack 6.4.3 breaks compilation

    This bug is now fixed in version 6.4.4. IDE Fix Pack 6.4.4 for Delphi 10.3.2
  3. Uwe Raabe

    MMX 15 (Beta) Available

    There is a new beta available. Changing the version number to 15 resembles not only the completely different new look due to theme support and new icons, but also the internal changes necessary to make all this work. Hopefully I didn’t break too much.
  4. Dalija Prasnikar

    Delphi compiler need to be opensourced

    My comment under the QP request that explains my stance on the matter. I don't want to enter into endless discussion there because it is ultimately the wrong place. @Marco Cantu enabling access to compiler (or any other sources) and allowing community contributions does not mean giving it for free. You can put up any license terms you want. I know that enforcing license is harder than having closed source, but people that will violate such licenses will just use cracked versions anyway - that is far simpler that rebuilding compiler on their own, only handful of developers would go that route. While Delphi compiler code might be worth studying for those interested in compilers, I highly doubt there is any ground breaking technology there worth stealing nowadays. From that perspective opening compiler (or other sources) does not seem like showstopper. @All however, open sourcing (I will use that term, regardless of what the actual licensing model would be) is not as simple as mere dumping source on GitHub. Somebody (Embarcadero employee), extremely knowledgeable in particular codebase would have to be gatekeeper - managing pull requests and communicating with community in general. In order to open sourcing to be successful endeavor there must be significant number of contributions made, without that - the whole thing makes no sense for Embarcadero (and for the community as well - beyond satisfying everyone's curiosity). In that case gatekeeper(s) will have their hands full. Not to mention that for every successful contribution, there will be countess others that will have to be reviewed and rejected for various reasons. That part introduces additional cost to Embarcadero and ability to develop code on their own, because part of the resources that would be used to developing in house will have to be spent for community interaction. Eventually, gains from community code can outweigh the costs, but that would take some time. Also, in code base that large, it may take years for community to start contributing in meaningful manner. And gate keeping would have to start immediately. There will be developers that will jump in from the start trying to fix their pet pevee without looking at bigger picture (breaking things like bull in a china shop). Now, that might look like - it it would take long time, let's start early then... but like I said, initial cost in terms of resources might be too high. Especially, now when there is a lot of work to do on various compilers - new ones (Android and macOS 64bit), including introducing some new features that are already in the works. From that perspective, open sourcing compiler in general... yes, but I don't think now (or any time soon) would be the right time. Right now (or soon enough), opening up sources to RTL/VCL/FMX would be much better move - we already have the sources, we already know our way around them. Community at large can more successfully contribute to those sources than to the compiler. Again, that kind of project would also have some initial cost, but I believe it could pay off much sooner. Open sourcing is the double edged sword - in order to be successful it takes resources that would otherwise be spent on in house development (with much higher initial progress rate). But the push for open sourcing (because, of the illusion that community can fix things faster and better) is greater in times when internal resources are spread thin, than in the times when everything works peachy. So it is kind of damned if you do damned if you don't situation.
  5. David Heffernan

    The Android 64bit deadline warnings have started

    Sure it's down to a lack of resources. But that's a consequence of expanding to new platforms. Each additional platform comes with a maintenance cost. That cost is paid for out of revenue. The bulk of the revenue comes from customers that are using the legacy platforms. If Emba continue to neglect their core business (Windows development tools) then eventually customers will look elsewhere.
  6. David Heffernan

    madSecurity, Are There Any Alternatives?

    In defence of Mathias his madExcept library is superb and very actively maintained. And his response to your comments in the thread seem reasonable. Why expect him to work on freeware? Anything he does is a bonus. It looks like your frustration is getting the better of you.
  7. ŁukaszDe

    IDE Fix pack for Rio

    New version for 10.3.2:
  8. Just finished a personal project for consuming and creating YAML in Delphi: https://blog.grijjy.com/2019/06/03/a-yaml-library-for-delphi/
  9. That is outrageous. Especially for older versions which were sold as a perpetual license. Now it seems that customers cannot legitimately continue to use software they own and have paid for. Is Delphi ransomware now?
  10. Lars Fosdal

    New VCL Style from DelphiStyles.com

    We sure do, because this makes me cringe. Too much clutter. That said - I also hate the currently popular naked "flat UI" design philosophy which takes away most UI guidance and makes you guess if something is a link, a button, or just text - and you have to hover and/or click in the right places to find out.
  11. Hi there, some of you wanted to ignore specific topics. Well - we are testing this functionality right now. Next to the button "Reply to this topic" you find a new link "Ignore this topic": If you ignore a topic, it will not be listed in any activity-streams. But it will still be included in search-results. An ignored topic is marked with a badge: If you want to "un-ignore" a topic, you will find a link for this: You can manage your ignored topics in your account.settings: For now this should work. Please consider this function more as a "mute topic for _X_ days". Because of the architecture of this plugin, it will not be able to handle hundreds or thousands of ignored topics. So there will be some sort of cleanup - but this part is not active yet. Butf this should be acceptable for us, because older topics will not get that much new content - so they will not disturb you anyway. Let's see how it works. 🙂
  12. Hi everyone, I would like to share with you that my new book has reached the production stage and will be available in September by Apress. The book is about Object Relational Mapping in Delphi and explores TMS Aurelius-- and excellent ORM solution for Delphi developers. I would, also, like to cordially thank Wagner Landgraf and Nick Hodges who were the tech reviewers of the manuscripts. Nick (who does not need any introductions) always shares his deep experience and has been very supportive while I was writing this book. Wagner (the creator of TMS Aurelius) has been guiding me with his expertise and suggestions to produce a presentation of Aurelius based on real-life situations. Thank you both. I hope you enjoy the book and I am looking forward for your feedback. Regards, John
  13. Ian Branch

    Successful Update to D10.3.2.

    Hi Guys, Just like to throw in a positive note. We seem quick to criticize but slow to recognize. !@#$%^& Yankee spelling.... I just updated from 10.3.1 to 10.3.2 using the web update and had absolutely no issues. Obviously some of the 3rd party libraries had to be updated also but all went smoothly. Regards, Ian
  14. Yeah, minimal... like dealing with every possible language for weekdays the mail could contain regardless the local language of the system the software is running on...
  15. Hi, Lately I've been using a lot more $IFDEF than I use to. And modifying code in the wrong block is what worries me, since there's no difference between active and unactive block. For example: {$IFDEF USE_FEATURE} { .. procedures and functions using a feature } {$else} { .. procedures and functions not using this feature } {$endif} USE_FEATURE might be defined as a project conditional define or in an included unit.( that really depends on the project) Anyway, I would like to know if there is an extension that would use syntax highlight in the {$IFDEF} block when USE_FEATURE is defined, fade the {$ELSE} block, and of course if USE_FEATURE is not defined, the $ELSE block would be colorful and $IFDEF block grayed out. TIA,
  16. Dave Nottage

    New Inline variables mess up IDE

    ..or not declare vars inline 🙂
  17. For another 16 hours on https://www.packtpub.com/free-learning - as the free book of the day.
  18. Bump Me Delphi One More Time (Sung to the tune of Baby One More Time) Oh Delphi, Delphi Oh Delphi, Delphi Oh Delphi, Delphi how was I supposed to know That something wasn't right here Oh Delphi, Delphi I shouldn't have nuked Windows And now you're out of sight, yeah Show me how to contact Team B Tell me Delphi 'cause I need to use Project Jedi Your installing is killing me (and I) I must confess I need a bump (need a bump) Using EDN I lose my mind I'm in a bind Bump me Delphi one more time Oh Delphi, Delphi The reason I reinstall? The IDE is locked up Oh 'spensive Delphi There's nothing that I wouldn't pay To get out of this cock-up Show me where to send the money Tell me Delphi 'cause I need to compile, all because Your policies are killing me (and I) I must confess I now believe (now believe) Dropping my subscription wasn't fine Here's dollar signs Bump me Delphi one more time Oh Delphi, Delphi Oh Delphi, Delphi Yeah, Oh Delphi, Delphi how was I supposed to know Oh 'spensive Delphi, that Popov needed the dough I must confess, that Oxygene is looking so good now Don't you know I still believe That I'm screwed and how EDN be kind Bump me Popov one more time Your Code Insight is killing me (and I) I must confess I still believe (still believe) One more squiggly line I'll lose my mind VS' looking fine Bump me Delphi one more time I must confess, that your buggy mess is killing me now Don't you know I'm still locked in I see with clarity Can't wait til FPC reaches feature parity Bump me Delphi one last time
  19. As an aside to this. What happens if Emba goes bust? are we all just locked out of the software? I have an active subscription but I'm of the opinion that this change makes using Delphi a very risky choice as Emba seem prepared to cut us off from using the software we own. Why can't we just move an activation from one machine to another without needing to go through the process of phoning in to ask permission?
  20. David Heffernan

    FastMM4 and False Positives

    The component vendor is applying a development methodology known as "wishful thinking". FastMM4 doesn't get this wrong.
  21. Attila Kovacs

    What does "G" in GExperts mean?

    Luck, you are not Stefan or Sigmund..
  22. Dalija Prasnikar

    Delphi compiler need to be opensourced

    And here your splendid personality jumps out again. Yes, I made a mistake. People do that, you know, regardless of experience. After being knowledgeable in your field of work, ability to recognize and admit your own mistakes is one of important qualities for successful developers. If one is not able to own his own mistakes it is hard to expect that such person will allow others to make mistakes without making too much fuss about it. Your response shows that either you don't have that quality or you have really short fuse. And neither makes you a wonderful team mate. And If you read my response you will see that I didn't included SWIG library (two and some years old) - I simply overlooked it. Last time I had to use C++ with Delphi was 8 years ago and it was no fun. I am glad that landscape has changed in that regard. Delphi ecosystem is not huge (no matter how much we would want it to be), and ability to interact with libraries written in other languages can make a whole world of difference. You don't want to reinvent hot water if it is already out there. Also, you might use other toolsets besides Delphi and utilizing same libraries across those toolsets also counts a great deal.
  23. Joseph MItzen

    Delphi compiler need to be opensourced

    I'm sure you heard about the first ever photo of a black hole. The associated research paper credits the open source scientific python libraries NumPy, SciPy and Pandas. Python was also one of the tools used in the hunt for the Higgs Boson and CERN scientists have spoken at Python conferences. The PyCon conference has been sponsored by everyone from LucasFilm and Disney Studios to Hewlett-Packard, Microsoft, Canonical, Disqus, Mozilla, J.P. Morgan bank, Twitter, Hulu, and Amazon. In fact, those were just a handful of the 2012 sponsors. Take a look at CodeRage sponsors: "Atozed Software, DevJet Software, Fast Reports Inc, Raize Software, Scooter Software, SmartBear and Steema Software." Draw your own conclusions.
  24. Joseph MItzen

    Delphi compiler need to be opensourced

    1. We get posts here, Reddit, etc. along the lines of "Please help me install Borland Database Engine on Windows 10" all the time. A large number of the Delphi applications being maintained today are being maintained on old versions of Delphi and the companies responsible for them have no desire to spend anything to modernize them. For example, the Melissa and Doug toy company in the United States uses an in-house ERP (Enterprise Resource Planning) program written and still maintained in Delphi 7. 1B. Again, a "skilled developer" can't just look at one million lines of undocumented code (that might be older than they are) and fix it. It could take years for a dedicated open source community to work their way through and document that code. Even then, the only sane options would be to massively refactor and modernize it or, again more likely, simply start over. 1C. Who would be in charge of the code? Would Embarcadero oversee it? If so, they might not approve changes. And they're unlikely to want to give up control, as that would be giving up control of the language. Going back to Firebird, they have a poor history of properly supporting open source code, and Marc Hoffman said that one EMBT employee said during discussions "We own Pascal." Not quite the mindset required to turn over control of their compiler/language to a third party. 1D. If there aren't enough developers interested and able to support FreePascal or NewPascal, where are the developers going to come from to spend years trying to make sense of the old Delphi desktop compilers, a much harder task with a much longer time to payoff? 2. Are you serious? Get-It has about 200 packages after four years, most of which are trials. Torry's Delphi Pages, the oldest collection of Delphi software still around, has a little over 10,000 packages ( a number that's barely moved from 2012), the vast majority of which are from the Delphi 5-7 era and most of the rest being trials of paid software. In the last 30 days it's added 17 files, only one of which is for free software. Now take a look here: http://www.modulecounts.com/ Java has over 274,000 open source libraries at Maven Central, C# has over 148,000 in nuget, Python over 174,000. Java is adding 197 a day, C# 93, Python 122. Per above, Delphi added 1 in 30 days. What libraries is Delphi lacking? Almost anything that doesn't involve grids (Delphi users are obsessed with grids). Serious numeric software (although you can pay $1600 for a bundle of Dew Research's matrix library, sci/stat function library, 3 basic data mining algorithms and Steema's TeeChart). Machine learning libraries. Financial libraries. Let's go smaller - I'm interested in making a media player. Delphi lacks a music file tag manipulation library (that's post-unicode and documented), audio manipulation library, replay gain library, cover art library, etc., all of which I can find on other platforms as open source. I'm working on another pet project now that involves data analysis and machine learning and if successful will require interacting with websites. I'd like to host it on a Linux Virtual Private Server eventually, which means $3500 for Delphi Enterprise. As mentioned above, the Dew Research bundle with source is $1600, bringing us up to $5100. Now let's add in Steema's TeeBi for some basic data manipulation abilities to clean and transform the data, which is $279. Wait, the only plugin it works with out of the box to export to Excel is TMS' FlexCel. So unless we want to find an open source Delphi Excel library and integrate it ourselves, that's another $141USD. Now we're up to $5520. A capable profiler? Smartbear AQTime Pro - another $600. Now we're at $6120. Let's toss in HelpNDoc for documentation for another $280USD. Now we're at $6400 so far. I want some neural networks... Boris Mitov has 1980's-era Kohonen self-organizing feature maps and basic backpropagation for $389 without source or $1369 with source. That's madness; I coded both algorithms circa 1994 for a school project in Turbo Pascal. Let's use FANN instead, which is an open source library that implements some improvements to basic backpropagation and has a fast C core. There's also an open source implementation of the NEAT neural algorithm for Delphi, but not the next-gen HyperNEAT. Oh well. Genetic programming? RiverSoftAVG has a decent library with basic features for $150. So $6550 so far and we haven't looked at logging or databases. We'll need to scrape and parse HTML - DIHtmlParser is $123 with source code but is very low-level. There's a higher-level parser on Github, but the only documentation is in Japanese. There's an "HTML Component Library" available that seems rather nice, but it's bundled with a lot I wouldn't need, raising the price to $350. Come to think of it, once all of this comes together and is working I'm going to need a high-level process to manage all of the various software tasks - downloading data, parsing data, processing data, interacting with the right websites at the right time, not launching a process that depends on another that failed, etc. Sadly, there simply aren't any "pipeline " libraries for Delphi at any price. And this is the point when one does the math and realizes they could take that money and buy a new desktop with a 32 core AMD Threadripper, 64GB memory, high-end graphics card for GPU acceleration, 3 NVMe SSDs in RAID 0 for hyper-fast caching with a few large-capacity hard drives in RAID 5 as backing storage, large curved 4K monitor, etc. and even have some money left over. Seriously. And they can use the Python scientific software stack of NumPy, SciPy, Matplotlib for matrices and graphics, but also use modern "grammar of graphics" (functional composition) libraries like plotnine or altair, something TeeChart doesn't offer. Pandas has had almost a 10 year lead time on TeeBI and is far fuller featured and much better documented. Scikit-learn offers a massive machine learning suite, unlike Dew Research's anemic three methods and no support functions. NeuPy offers a vast amount of neural networks for free, plus one can download and use TensorFlow from Google or PyTorch from Facebook and gain support for modern deep learning frameworks that do things like power self-driving cars. Let's see, there's a HyperNEAT implementation too; and genetic programming libraries like DEAP which can scale across all the machines on a network if you wish, and also the best clustering algorithm, DBSCAN, which I couldn't find for Delphi. There's the well-known scrapy framework, as well as BeautifulSoup for high-level HTML parsing. Pipeline programs? Companies like Spotify have open-sourced tools like luigi and AirBNB has airflow. Both can produce web pages to monitor the performance of your processes and view dependency graphs in real time! And there's Selenium for driving the major web browsers across platforms. And that's the difference between using Delphi and using a modern language with 100,000+ free and open source cross-platform libraries available. I've spent zero on software, gotten much more powerful libraries in many cases, and don't have to spend weeks or months implementing low-level libraries myself and can instead concentrate on the problem I'm trying to solve. That was the original appeal of Delphi - the VCL abstracted away the monotonous low-level Windows API to allow developers to code only the solutions relevant to their specific problem. Nowadays this is a solved problem in the form of open source software and Delphi is no longer the "rapid" application development it originally was. You're going to spend lots of time writing things that other language users can download and install from modern package managers in seconds. Your other alternative is to spend thousands of dollars on lesser libraries maintained by one person who may disappear tomorrow. In a research paper designed to discover what makes programming languages popular, the authors found from surveys that the single most important factor to developers in choosing a language is the amount of libraries available, preferably open source libraries. I've seen one developer put it this way, "Today, isn't not being popular itself a language defect?"
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