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Uwe Raabe

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Posts posted by Uwe Raabe


  1. 18 minutes ago, Stefan Glienke said:

    The closing quotes dictate the alignment

    BTW, I like the fact that it is the closing quotes instead of the starting one. Imagine you need to adjust the indentation of the whole literal just because you decide to change the name from blub to something with not the same length.


  2. 4 minutes ago, Lajos Juhász said:

    In my opinion it would be better to use:

     

    
    blub:= "line1
       line2, indented
    line3
    ;

    What if you want a line with a single semi-colon inside the string literal?

     

    With the current implementation your example would be written this way:

    blub := '''
       line1
          line2, indented 3 spaces
       line3
       '''; // the ending triple quotes are aligned with the no-indentation position

    Some background for this discussion: Raw string literal

    • Like 1

  3. Exactly! Nobody is forced to use this new feature.

     

    Also, I don't see anything breaking except tools parsing new code using that feature. Obviously that is always the case with new language features. The only way to avoid that is not allowing new language features in the first place.


  4. I actually prefer the new syntax over the suggested one, as that is already occupied by a call to function multiline taking a string parameter - and fails because of the line-breaked string literal.

     

    Instead of teaching the compiler that a function call to multiline (what happens if I already have a similar named function in the scope?) to accept line breaks in the only sting literal parameter, the new syntax keeps the available parsers intact. They will just fail on the new multiline syntax as any Delphi compiler version before does.

     

    The new syntax is pretty simple to detect:

    Quote
    • It is introduced by a triple quote (’’’) and a new line (so no text following the triple quotes on the same line)
    • It can encompass multiple lines of the source code file (with no limitation)
    • It ends with a closing triple quote (’’’) in a line without any text preceding it

    This makes tweaking the parser not too complicated, as the start and end tokens are easy to recognize.

     

    While the triple quote alone resembles still valid syntax in previous versions, the mandatory new line would fail to parse. That is the condition where the new parser should intercept until the end condition is met.

     

    It still seems unclear how one has to escape a triple quote with no text preceding it inside a multiline string.

    • Like 1

  5. 2 hours ago, Vincent Parrett said:

    I usually have something like this so I can have one inc file that supports versions before and after XE4

    The IFEND works in all versions. LEGACYIFEND ON only makes XE4+ accept only IFEND, too. That might be helpful to write code compatible with versions before XE4 when written and tested with newer versions only. So it is more like a safeguard for the developer, but code written like before XE4 will also compile in XE4+ without that LEGACYIFEND directive.

    • Like 5

  6. I'm not aware of something like that. There is a change regarding IFEND since XE4:

    Quote

    Before the XE4 release, $IF statements could only be terminated with $IFEND, and the $IFDEF, $IFNDEF, $IFOPT directives could only be terminated with $ENDIF.

    At XE4, this changed so that $ENDIF became an accepted terminator for $IF, $IFDEF, $IFNDEF, and $IFOPT.

     


  7. 1 hour ago, Stefan Glienke said:

    I rather copy the latest version when a new one comes out/is in beta.

    Me too. Although f.i. PngComponents are prepared to compile with newer versions without changing more than the LIBSUFFIX (which in my case is handled by Project Magician), I always copy the package folder to a decent named one.

     

    The VirtualTreeView approach works fine when you just compile and install from the lowest Delphi version to the highest or you revert any changes before opening the package in another one.

     


  8. 43 minutes ago, Fred Ahrens said:

    Sorting units by name is dangerous.

    Albeit there actually is a request for that, MMX does not sort the units by name. They are grouped according to a user defined pattern, but inside the group the order stays intact.

     

    F.i. this is the Groups entry for one of my projects: 

    image.thumb.png.bc83a5936ca041b7c68e0d2eb42a4934.png

     

    After some Delphi units in a decent order based on dependency, there are the Raize and TMS units followed by VirtualTreesPngComponents and the ZipForge units. The last four mimic the unit scopes and naming convention of the project itself also ordered by dependency.

    (TMS can improve their unit naming btw.)

     

    A typical uses clause looks like this:

    uses
      Winapi.Messages,
      System.Classes, System.Actions, System.Types, System.ImageList,
      Vcl.Graphics, Vcl.Menus, Vcl.ActnList, Vcl.Controls, Vcl.ExtCtrls, Vcl.Forms, Vcl.StdCtrls, Vcl.Tabs, Vcl.Dialogs, Vcl.ImgList,
      Vcl.VirtualImageList, Vcl.AppEvnts,
      RzTabs, RzForms, RzShellDialogs, RzPanel, RzButton, RzSplit, RzCommon,
      Common.Form,
      IpButton, IpMRU, IpMultiLanguageSupport,
      TcEditorTypes, TcGlbCfgSystem, TcGlbCfgVisualStyle,
      RNcCodeViewer, REditorStructure, REditorItems, RBasePalette, RStoragePalette, REditorPalette, RCustomPalette, REditorPanel,
      RBaseFrame, RObserver, RStandardStatus, REditorNesting, RBaseEditorFrame;

     

    The grouping algorithm is pretty flexible and I never had a case that could not be handled.

     

    If auto-sort a uses clause is automatically sorted whenever MMX modifies it - a very handy feature.

    • Like 1

  9. It started with the request to expand the unit scope names, which gave a good boost to compile time in some cases. The idea of uses clause grouping and sorting crept in my mind when I noticed difficulties to quickly scan the list of used units. With a sorted and grouped uses clause the used libraries are clearly visible immediately. So its partly for compilation speed as well as a neat look (some call it OCD).

    • Like 2

  10. 2 hours ago, Kryvich said:

    There is no reason to stay on the old version of Delphi. Only if you have specific requirements that do not allow you to switch to a new one.

    Even that would not magically extend the license. The only option to continue working with 10.4 is buying a full version where the license also covers older versions.


  11. 22 minutes ago, softtouch said:

    und when I allow to add them

    You probably didn't allow to add the units,  but allowed to add SynEditDR to the requires clause instead. If you deny that request, the units are compiled into your package.

     

    If you want to make use of the SynEdit package you must make sure that SynEditDR.dcp can be found during compile and deploy the corresponding bpl with your application.

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