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  1. PyScripter, an Open Source, freely available Python IDE written in Delphi, has reached 1 million downloads from Sourceforge. This is in addition to many millions of downloads from its earlier home at the now defunct Google Code and an unknown number of downloads from other distribution channels. Historic note: The initial motivation was to build a good scripting solution for Delphi applications. About 20 years ago Microsoft was still promoting ActiveX scripting and Windows Script Engines (such as vbScript and jScript) as the way of building scripting solutions for Windows applications (one of many Microsoft technologies that was all but abandoned). At that time Python was relatively unknown, but it so happened that it was available as a Windows Script Engine and I looked into it. I loved the clean syntax, the expressiveness and conciseness of the language. Other things I liked were duck typing, batteries included, strong object orientation (everything is an object) etc.. The first iteration was an IDE (editor/debugger) for ActiveX Script Engines. But there were many bugs and limitations of Active Scripting both on the Microsoft/Windows side and the Python side. I then came across Python4Delphi which at the time was maintained by a Canadian developer Morgan Martinet. I started contributing to that project and later become its main maintainer, when Morgan's interested shifted to other things. I also developed a simple Python IDE which was named PyScripter and was originally distributed alongside Python4Delphi. There was very few Python IDEs available at the time and somehow the project became known in the Python community and instantly popular. For me, developing PyScripter was just a hobby, but I received a lot of encouragement and kept on improving it. I was also making some income from donations and Google AdSense. Both PyScripter and Python4Delphi were later moved to Google Code. Python popularity was steadily increasing and at the peak of PyScripter's popularity around 2010, there were hundreds of thousands of downloads the days following each new release. More recently as we all know Python became one of the most popular programming languages, but at the same time there was strong competition to PyScripter from freely available commercial grade IDE's such as Jetbrains PyCharm and Microsoft's Visual Studio and Visual Studio Code. PyScripter was almost abandoned when Google Code closed down due to my frustration, but after a couple of years of inactivity the project was moved to Github and development resumed. Downloads are available through Sourceforge, since 2016. Through the years PyScripter has kept a large and loyal group of followers. I get many comments along the lines "I have tried VSCode, I have tried PyCharm, but I keep going back to PyScripter". PyScripter is also quite widely used in many Universities for introducing Python to students. And almost 20 years after its first release, PyScripter is still going strong...
  2. I have uploaded a new development snapshot for the (upcoming) IDE Fix Pack 6.5 IDE Fix Pack Snapshot Download What's new: Added: (IDE) Fix for RSP-23006: Edit controls in the ObjectInspector aren't clipped by the scrollbar anymore (10.3+) Added: (IDE) The compile progress dialog is updated only every 80 ms now. And if a remote desktop session is detected it is only updated every 250 ms. The IDE compiler runs in the main thread, so every GUI update affects the compilation time. Added: -x--jdbg compiler option extension that creates and attaches a jdbg-file. You don't need a detailed map file (-GD) anymore to create or attach a jdbg-file for the binary file. Attaching the jdbg PE section is done after the linker closed the binary file. -x--jdbg and -x--jdbg=1 create a jdbg-file -x--jdbg=2 attaches the jdbg data to the executable/dll/bpl. Question: "Why is the jdbg file smaller than my old file?" - Answer: "The old file was created with an older version of JclDebug.pas." Added: -x--unitstats compiler option extension outputs unit filenames for units with "unitname in 'filename'" entries. Added: -x-fvs compiler option extension also generates faster interface call stubs for virtual methods that are final or in a sealed class. Added: Package compilation is a lot faster in the linker and cleanup phase. Added: Faster ObjectTextToBinary (DFM) implementation by removing unnecessary string comparisons. This improves the linker's performance when it converts DFMs to resources. Added: Faster map file creation by using a much faster Sort-By-Address implementation and a faster \n to \r\n converter. Added: Faster unitname to unit filename resolving (unitname in 'filename') The compiler used a Byte as hash-value and a single linked list. The code is now replaced by a hash-map with a 32 bit hash-value. Added: Faster compiler inline handling for projects with lots of units. Added: The command line compiler uses a double linked unit list to remove and reorder items faster. The IDE compiler still uses the original single linked list because some other code in the IDE does something with it and I couldn't make it not crash. Added: LoadString cache for compiler error/warning/hint messages. The compiler loads the warning/hint string and then decides not to show it. The cache prevents the compiler from calling LoadString too often. Added: Some PAnsiChar/PWideChar RTL optimizations for the IDE and IDE Fix Pack. Fixed: Compiler option extensions didn't work in dcc*.cfg and project.cfg files. Now you can specify -x-* options also in *.cfg files. Fixed: Don't crash if a 3rdParty tool destroys the Castalia Clipboard Form. Fixed: -x-cgo compiler option extension crashed the 10.3 compiler. Removed: The "Exception catcher" patch for ErrorInsight is no more. It didn't have any functionality.
  3. In the attachment you can find a high-level interface-based encapsulation of the Direct2D SVG functionality. It allows you to parse SVG files and draw them to a GDI/GDI+ DC. Requires Windows 10 with Creators Update or later. Main form code to display SVG files: { TForm1 } procedure TForm1.FormCreate(Sender: TObject); begin fSVG := GetD2DSVGHandler.NewSvg; fSVG.LoadFromFile('..\..\browser.svg'); //fSVG.FixedColor := TAlphaColorRec.Red; //fSVG.Opacity := 0.5; fSVG.GrayScale := True; end; procedure TForm1.Paint; begin inherited; fSvg.PaintTo(Canvas.Handle, TRectF.Create(ClientRect), True); end; procedure TForm1.Resize; begin inherited; Invalidate; end; Features: Scale to any size Keep aspect ratio (optionally) Control opacity Recolor to any color Draw in gray scale Samples: The above in grayscale: Svg.zip
  4. After a very, very long beta phase I finally released MMX Code Explorer V15. Thanks to all beta testers for their help and patience. A really big thank you goes to all who donated for the new MMX icons.
  5. Mahdi Safsafi

    DDetours v2.2

    Hi, DDetours v2.2 is released. version 2.2(Jun 9, 2020): +Added support for older Delphi version: Now the minimal supported Delphi version is D7. +Added support for FPC. +Added recursive section feature: EnterRecursiveSection/ExitRecursiveSection. +Added param/tag feature for all InterceptCreate functions. +Added GetTrampolineParam function to get user param. +Added GetCreatorThreadIdFromTrampoline function to get thread id that created the hook/trampoline. +Added detection for non valid trampoline pointer. +Added unittest. +Replaced BeginHooks/BeginUnHooks by BeginTransaction. +Replaced EndHooks/EndUnHooks by EndTransaction. +Replaced GetNHook by GetHookCount. +Replaced TDetours<T> by TIntercept<T,U>/TIntercept<T> +Fixed many bugs related to MultiBytesNop. +Fixed wrong displacement value for some branch instructions on x64. +Fixed wrong offset size on x86 for GetJmpType function. +Removed v1 compatibility. +Now the library does not rely on Object. +Code refactoring. https://github.com/MahdiSafsafi/DDetours Some of the above features were planed for v3 that I started working on years ago. But I never get a chance to finish it. What a pity I'm rolling v2.2 instead of v3.2.
  6. Primož Gabrijelčič

    Revisiting TThreadedQueue and TMonitor

    Please go fight in private and stop killing this great thread.
  7. I have created GitHub repository with code examples from my book Delphi Memory Management for Classic and ARC Compilers. It is still work in progress (there is plenty of code) and currently, it contains examples from Part 1 and Part 5. The rest is coming... https://github.com/dalijap/code-delphi-mm
  8. Vandrovnik

    Function with just underscore _() seems to be valid

    With this info in mind, for bad customers you can start programming like that: const _ = 1; _____ = 2; x = _____ + (_-_-_) + 0 + _+0-0+_ ;
  9. https://www.tmssoftware.com/site/tmswebcorevsc.asp Happy to announce the public beta of TMS Web Core for Visual Studio Code, you can install it directly from Visual Studio Code's marketplace and start writing web applications in Pascal in minutes. Please, use the support center forums to provide any feedback you want and help us to polish the product towards its upcoming release: https://support.tmssoftware.com/c/web-core/tms-web-core-vsc/87 RADical Web Modern SPA web application model Pure HTML5/CSS3/Javascript based applications Standard component framework for common UI controls and access to browser features Debugging in Pascal code via the browser Backed by a solid & proven Delphi Pascal to Javascript compiler that was years in development Reuse skills and components Open to consume other existing Javascript frameworks & libraries Open to use HTML/CSS for design Open to use other jQuery controls or even other Javascript frameworks Easy interfacing to REST cloud services including to TMS XData for database Easy Deployment Application consists of HTML & Javascript files only that can be easily deployed on any light or heavyweight webservers Use any existing load-balancing software and/or techniques for highest performance Visual Studio Code version benefits WYSIWYG form designer Debugging integrated in the IDE Cross-Platform (Windows / MacOS / Linux) High DPI enabled IDE Ecosystem with many additional plugins to enchance development productivity Get started with TMS Web Core for Visual Studio Code
  10. Sherlock

    Are we just "Cash Cows"?

    I didn't read the book, but I'm guessing that only applies when you add those programmers to the same problem. Luckily Delphi has a ton of problems, that could each feed a programmer for at least a month
  11. Arnaud Bouchez

    Experience/opinions on FastMM5

    You are right: FastMM5 challenged me... and since no one responded to my offer about helping it run on FPC/Linux, and also since I wanted something Open Source but not so restrictive, I created https://github.com/synopse/mORMot2/blob/master/src/core/mormot.core.fpcx64mm.pas which is GPL/LGPL and MPL. So you can use it with closed software. It uses the same core algorithms than FastMM4. I like it so much, and missed it so much in FPC... 🙂 I was involved in ScaleMM2, and a per-thread arena for small blocks didn't convince me: it tends to consume too much RAM when you have a lot of threads in your process. Note that a threadvar is what the FPC standard MM uses. I wanted to take the best of FastMM4 (which is very proven, stable and efficient), but drive it a little further in terms of multi-threading and code quality. FastMM4 asm is 32-bit oriented, its x86_64 version was sometimes not very optimized for this target - just see its abuse of globals, not knowledge of micro-op fusion or CPU cache lines and locks, and sparse use of registers. Also focusing on a single compiler and a single CPU, with not all the features of FastMM4 in pascal mode, helped fpcx64mm appear in two days only. Last but not least, I spent a lot of time this last year in x86_64 assembly, so I know which patterns are expected to be faster. The huge regression test suite of mORMot helps having a proven benchmark - much more aggressive and realistic than microbenchmarks (like string concatenation in threads, or even the FastCode benchmark) on which most other MM relies for measurement. When the regression tests are more than twice faster than with the FPC standard MM on Linux - as @ttomas reported - then we are talking. It runs a lot of different scenarios, with more than 43,000,000 individual tests, and several kind of HTTP/TCP servers on the loopback, running in-memory or SQLite databases, processing JSON everywhere, with multiple client threads stressing it. When I run the test on my Linux machine, I have only a few (less than a dozen) system Linux nanosleeps (better than Windows sleep) , and less than 2 ms waiting during a 1 minute of heavy tests - and only for Freemem. I really don't like the microbenchmarks used for testing MM. Like the one published in this forum. For instance IntelTBB is very fast for such benchmarks, but it doesn't release its memory as it should, and it is unusable in practice. I guess that some user code, not written with performance in mind, and e.g. abusing of str := str+'something' patterns would also be more than twice faster. And if your code has to reallocate huge buffers (>256KB) in a loop, using mremap on Linux may make a huge performance boost since no data would be copied at all - Linux mremap() is much better than what Windows or BSD offer! Yes, huge memory blocks are resized by the Linux Kernel by reaffecting its TLB redirection tables, without copying any memory. No need to use AVX512 if you don't copy anything! And plain SSE2 (with non-volatile mov for big buffers) is good enough to saturate the HW memory bandwidth - and faster than ERMS in practice. IMHO there was no need to change the data structures like FastMM5 did - I just tuned/fixed most of its predecessor FastMM4 asm, reserved some additional slots for the smaller blocks (<=80 bytes are now triplets), implemented a safe and efficient spinning, implement some internal instrumentation to catch multi-threading bottlenecks, and then Getmem didn't suffer from contention any more! I knew than FastMM4 plus some tweaks could be faster than anything else - perhaps even FastMM5.
  12. Arnaud Bouchez

    Patch 2 for RAD Studio 10.4 now available

    This is the famous "patch release before holidays" syndrome... 🙂
  13. Yaron

    My open-source portfolio

    I released quite a bit of interesting code to github over the years: YouTube DATA API v3 parsing: https://github.com/bLightZP/Delphi-YouTube-Channel-parsing-plugin-for-Zoom-Player Basic RSS feed parsing code: https://github.com/bLightZP/Delphi-RSS-feed-parsing-plugin-for-Zoom-Player TheAudioDB MetaData/Image scraping code: https://github.com/bLightZP/Delphi-theaudiodb.com-Zoom-Player-media-scraping-plug-in TheMovieDB MetaData/Image scraping code: https://github.com/bLightZP/Delphi-themoviedb.org-Zoom-Player-media-scraping-plug-in OpenSubtitles.org subtitle search & scrape code: https://github.com/bLightZP/Delphi-OpenSubtitles.org-API-support-for-Zoom-Player A basic cross-platform calculator https://github.com/bLightZP/ElegantCalculator https://play.google.com/store/apps/details?id=com.inmatrix.ElegantCalculator Adapted old code to work as cross-platform pure-pascal image scaling with filters (bicubic, bilinear, etc): https://github.com/bLightZP/ImageInterpolation Adapted old code to work as a cross-platform drawing of an anti-aliased circle (can be modified to draw rount-rect as well): https://github.com/bLightZP/AntiAliasedCircle I forked a QRCode generating source code and greatly optimized it (~ x50 faster): https://github.com/bLightZP/DelphiZXingQRCode The original Delphi scanline color-conversion implementation was very slow, so I optimized it: https://github.com/bLightZP/OptimizedDelphiFMXScanline
  14. Just FYI, the new (large) patch is out. https://blog.marcocantu.com/blog/2020-july-radstudio104-patch2.html over 20 Delphi compiler fixes, among a long list of items addressed. Fixed the debugger instability and a few more critical issues, also improved Delphi LSP quite a bit. Quality work will continue, this is a first step.
  15. Rethinking Delphi Floating Point Control Register Management.pdf
  16. David Heffernan

    Your RAD Studio 10.4 Sydney issues

    Beta testing is no substitute for having your own comprehensive set of automated tests. Beta testing is best used to help identify issues with design. It really shouldn't be used to find implementation bugs. I hope that Emba don't do that. When Emba tell us that they are going to focus on quality, it comes with talk of how many QP issues have been resolved. But for me that misses the point. Unless they are also fixing the development process that allows so many bugs, they will remain stuck on the treadmill, running to stay still.
  17. I am very happy that FastMM5 is now available and also with the new licensing scheme. We plan to use it in our heavily threaded 64-bit http/socket servers. While I wouldn't have used it at all if it was GPL only, having a commercial offering at a reasonable price is actually more preferable because I like the idea of a properly maintained memory manager for our commercial products. There are plenty of free memory managers around for Delphi, that are barely maintained.
  18. David Heffernan

    Why upgrade?

    The most significant issue is that Set8087CW and SetMXCSR are not threadsafe. It's a bit of effort to fix it because you need to patch things like the code that handles external exceptions, which also interacts with fp unit control state. I wrote a comprehensive explanation of the issues, and how I addressed them. On request from Emba staff. I submitted that doc as a QC report. Emba then killed QC and asked me to resubmit all my disappeared QC reports. That pissed me off. Doc is here https://drive.google.com/file/d/0B2MV9dPR57BUbnVvNW0zaEFnYTg/view?usp=drivesdk
  19. HxD is a Freeware hex, disk and memory editor, that is fast and can handle files of arbitrary size (up to 8 EiB). Some of the feature highlights are: Disk editor (automatically unmounts drives as necessary when saving changes) Memory editor (full support for 64 and 32-bit) Data folding, for easier overview and hiding inaccessible regions Data inspector Converts current data into many types, for editing and viewing Open source plugin-framework to extend with new, custom type converters Search and replace with support for various data types Importing and exporting of Intel Hex, Motorola S-Records Exporting to Pascal, C, Java, C#, VB.NET, PureBasic, but also HTML, RTF, and TeX Checksum and hash generation and validation File compare Tools to split, join and shredder files Currently, available in version 2.4 and 17 languages: HxD download. P.S.: If you like it, please star the code on GitHub or give it a (good 😉) rating on download sites.
  20. Carlo Barazzetta

    Native Svg parsing and painting in Windows

    The work on https://github.com/EtheaDev/SVGIconImageList continues, many issues have been solved. Now it's possible also to use native VirtualImageList (from 10.3 or 10.4) linked to a TSVGIconImageCollection! If you have an older Delphi version you can use TSVGIconsVirtualImageList. With the help of VincentParrent and pyscripter the components and the SVG library improve day by day ... Stay tuned!
  21. Pcre-Jit-Delphi Delphi wraps the PCRE library into the System.RegularExpressions unit. This unit provides a high-level, easy-to-use interface to PCRE. A limitation however is that it does not provide access to the Just-In-Time (JIT) compiler of PCRE. PCRE JIT can improve the performance of regular expression matching dramatically and is particularly useful, when you apply the same regular expression repetitively. The purpose of the Pcre-Jit-Delphi project is to patch the Delphi RTL in order to provide access to JIT. Please visit the project page at Github to see how you can use PCRE JIT in your projects. Benchmark The console project Benchmark.dpr in Demos folder compares the performance of the built-in Delphi regular expressions library, with the those of using Study without JIT and Study with JIT on a commonly used regular expression benchmark. Here are the results I got from the 64 bit version. Time | Match count ============================================================================== Delphi's own TRegEx: /Twain/ : 7.00 ms | 811 /(?i)Twain/ : 41.00 ms | 965 /[a-z]shing/ : 384.00 ms | 1540 /Huck[a-zA-Z]+|Saw[a-zA-Z]+/ : 461.00 ms | 262 /\b\w+nn\b/ : 588.00 ms | 262 /[a-q][^u-z]{13}x/ : 539.00 ms | 4094 /Tom|Sawyer|Huckleberry|Finn/ : 757.00 ms | 2598 /(?i)Tom|Sawyer|Huckleberry|Finn/ : 861.00 ms | 4152 /.{0,2}(Tom|Sawyer|Huckleberry|Finn)/ : 2615.00 ms | 2598 /.{2,4}(Tom|Sawyer|Huckleberry|Finn)/ : 2766.00 ms | 1976 /Tom.{10,25}river|river.{10,25}Tom/ : 455.00 ms | 2 /[a-zA-Z]+ing/ : 807.00 ms | 78423 /\s[a-zA-Z]{0,12}ing\s/ : 560.00 ms | 49659 /([A-Za-z]awyer|[A-Za-z]inn)\s/ : 789.00 ms | 209 /["'][^"']{0,30}[?!\.]["']/ : 321.00 ms | 8885 Total Time: 11963.00 ms ============================================================================== Delphi's own TRegEx with Study: /Twain/ : 6.00 ms | 811 /(?i)Twain/ : 41.00 ms | 965 /[a-z]shing/ : 316.00 ms | 1540 /Huck[a-zA-Z]+|Saw[a-zA-Z]+/ : 21.00 ms | 262 /\b\w+nn\b/ : 581.00 ms | 262 /[a-q][^u-z]{13}x/ : 413.00 ms | 4094 /Tom|Sawyer|Huckleberry|Finn/ : 28.00 ms | 2598 /(?i)Tom|Sawyer|Huckleberry|Finn/ : 217.00 ms | 4152 /.{0,2}(Tom|Sawyer|Huckleberry|Finn)/ : 2632.00 ms | 2598 /.{2,4}(Tom|Sawyer|Huckleberry|Finn)/ : 2785.00 ms | 1976 /Tom.{10,25}river|river.{10,25}Tom/ : 50.00 ms | 2 /[a-zA-Z]+ing/ : 759.00 ms | 78423 /\s[a-zA-Z]{0,12}ing\s/ : 563.00 ms | 49659 /([A-Za-z]awyer|[A-Za-z]inn)\s/ : 699.00 ms | 209 /["'][^"']{0,30}[?!\.]["']/ : 52.00 ms | 8885 Total Time: 9179.00 ms ============================================================================== Delphi's own TRegEx with JIT: /Twain/ : 11.00 ms | 811 /(?i)Twain/ : 14.00 ms | 965 /[a-z]shing/ : 12.00 ms | 1540 /Huck[a-zA-Z]+|Saw[a-zA-Z]+/ : 3.00 ms | 262 /\b\w+nn\b/ : 126.00 ms | 262 /[a-q][^u-z]{13}x/ : 154.00 ms | 4094 /Tom|Sawyer|Huckleberry|Finn/ : 22.00 ms | 2598 /(?i)Tom|Sawyer|Huckleberry|Finn/ : 61.00 ms | 4152 /.{0,2}(Tom|Sawyer|Huckleberry|Finn)/ : 277.00 ms | 2598 /.{2,4}(Tom|Sawyer|Huckleberry|Finn)/ : 346.00 ms | 1976 /Tom.{10,25}river|river.{10,25}Tom/ : 12.00 ms | 2 /[a-zA-Z]+ing/ : 84.00 ms | 78423 /\s[a-zA-Z]{0,12}ing\s/ : 156.00 ms | 49659 /([A-Za-z]awyer|[A-Za-z]inn)\s/ : 35.00 ms | 209 /["'][^"']{0,30}[?!\.]["']/ : 18.00 ms | 8885 Total Time: 1350.00 ms As you can see the increase in performance is impressive. Credits Many thanks to @Mahdi Safsafi who provided the assembly code for __chkstk and other Delphi developers (@Kas Ob., @David Heffernan, @Remy Lebeau, @Fr0sT.Brutal) that have provided useful advice.
  22. Bill Meyer

    Are we just "Cash Cows"?

    You can write bad code in any language. It's a poor workman who blames his tools. Delphi is not perfect, and certainly we battle defects in the IDE, but failure to design is a plan for failure in any language.
  23. pyscripter

    SynEdit preferred version?

    I will start with a bit of history. The Original Code is based on mwCustomEdit.pas by Martin Waldenburg, a great programmer. The key feature of the editor was fast syntax highlighting. This was more than 20 years ago. After a split of the community the SynEdit project was formed maintaining some of the key features of mwEdit. Over the years some of the best Delphi programmers contributed to the project. The list includes for example Gerald Nunn, Eric Grange, Jordan Russell and many many others. Flavio Etrusco added word wrap and Maël Hörz added unicode support (but in a rather idiosyncratic way). However the project management was very weak and the code gradually became very hard to maintain and improve. It aimed to support very old Delphi versions including Kylix and the code became full of IFDEFs and patches without an overall coherence. An early fork of Synedit is part of Lazarus but the two development efforts have diverged a great deal. When Embarcadero introduced the GetIt package manager they asked Roman Kassebaum to produce a version of SynEdit for GetIt. Roman did a general code cleanup removing support for early Delphi versions and Kylix (Turbo fork(s)). I have added support for code folding (the first major new feature for years) to both the Turbo fork and the main Synedit repository. However the Turbo fork(s) were not actively supported or developed beyond recompiling for new Delphi versions and the main Synedit branch was too hard to work with, hence the creation of SynEdit-2 as a fork of Turbo SynEdit. Main new features in SynEdit-2: Replaced SynRegExpr with the built-in RegularExpressions Move/Copy Line(s) Up/Down commands as in VS Code Delete Line command should work with multi-line selection Handle triple and quadruple clicks for selection Triple click and drag should select lines Double click and drag should select whole words Support OLE Drag & Drop What are the key features missing in Synedit: Better Unicode handling: Better support for wide characters e.g. Chinese ideograms (爾雅爾雅爾雅爾雅) Support for surrogate pairs (two widechars correspond to one glyph) Combining characters (e.g. Åström ḱṷṓn) Multi-cursor and multi-selection editing as in VS Code. When these features get implemented I think SynEdit will become comparable to some of the best editors around. But both of them require major rewriting of the code. Work on the second is well advanced and the unicode work is in the planning stage. Of course it is your choice as to which version of SynEdit to use, but if anyone wants to contribute to the development you are very welcome.
  24. Sherlock

    ParnassusCoreEditor.dll AccessViolation

    It's called consistency and is considered to be a good thing...most of the time.