Posted by jpluimers on 2021/02/18
Recently, I bumped into [WayBack] Write-Output confusion for the upteenth time.
Luckily I had the below links archived, basically invalidating the use of Write-Output, and invalidating the answer at [WayBack] powershell – What’s the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”? – Stack Overflow.
Posted in CommandLine, Development, PowerShell, PowerShell, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2021/02/18
is a documentation browser that finds the relevant docs for your code. It works by parsing the code and connecting parts of it to their explanation in the docs
, and supports these languages:
You can enter any language text, then click the language, followed by clicking the “SHOW ME THE DOCS!” button, for which an example is further below.
The site has an open architecture, allowing to plug in more languages and documentation:
So for instance the below ./git/config file leads to this result [WayBack] where you can click on all the coloured areas for easy navigation through the documentation:
Posted in *nix, *nix-tools, Database Development, Development, DVCS - Distributed Version Control, git, MySQL, nginx, PostgreSQL, Power User, Software Development | Leave a Comment »
Posted by jpluimers on 2021/02/18
Lots of Delphi programmers made, or are making the move, of classic Delphi based containers like TObjectList into generic containers like TList<T>.
A while ago, I got into a project that needed to extend lifetime of some objects. Virtually all of them were interface based, and most of the code was from the non-Unicode era, and most of the developers there had a strong background in that era, so they started fiddling with TList, found it hard, then thought “maybe TList<IInterface>” where will help.
The problem however, is that Delphi has no IList<T>. For that, you have to go to the Spring4D library.
Then I sat down with them, and proposed to use an instance good old TInterfacedList of which the context was maintained in an IInterfacedList field.
Back in the days where Delphi did not support non-generic types, TInterfacedList was the only built-in way to store interface references, and the Collection Classes framework by Ray Lischner were the only ways to do that in a more structured way (as they were based on interfaces, an idiom that Embarcadero should have used for their generic collections as well; Spring4D did, so use those collection classes and interfaces whenever possible as they are way more versatile than the Delphi built-in ones)
IInterfacedList example:
Back to using TInferfacedList, as it can still be useful today in:
unit InterfacesHolderUnit; interface uses DebuggableInterfacedObjectUnit, System.Classes; type IInterfacesHolder = interface procedure Add(const aReference: IInterface); end; TInterfacesHolder = class(TInterfacedObject, IInterfacesHolder) strict private FInterfaces: IInterfaceList; public constructor Create(); procedure Add(const aReference: IInterface); end; implementation { TInterfacesHolder } procedure TInterfacesHolder.Add(const aReference: IInterface); begin FInterfaces.Add(aReference); end; constructor TInterfacesHolder.Create(); begin inherited Create(); FInterfaces := TInterfaceList.Create(); end; end.
and some tests:
Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | 1 Comment »
The Wiert Corner - irregular stream of stuff 