At least in the commercial world, the current legacy of Pascal is really in the C# community. See Anders Hejlsberg [1]. He was the author of Turbo Pascal and the chief architect of Delphi before becoming the architect of C#. There is a lot of consistency between the three language environments, especially between Delphi and C#.
* Range-based subtyping: You can declare a type as being an int of 1..5. Many Pascal-derived languages (Modula, Oberon, Ada) have this.
* Ranges are first-class values and can be used in loops and case statements: "for i in 0..10".
* Arrays: "array[1..5] of integer" becomes "array[1..5, int]". Nim also has open arrays, just like ObjectPascal.
* Enums. Almost exactly like Pascal.
* Sets, eg. "set[char]", which can then assign things like {"a".."z"}, almost exactly like Pascal.
* Functions like ord() and prec().
* For a long time Nim used Borland-influenced naming conventions (mainly three: TFoo for classes, PFoo for pointers to objects, FFoo for fields). Fortunately this has been deprecated.
* "var", "type" etc. being block-oriented and used to declare multiple things on separate lines.
* Functions/methods are called "procedures". (The Nim manual insists this is more correct. I'm not so sure.)
I used to, quite heavily. It was my go-to systems language when I didn't have any particular reason to use C or C++. But I think its time has likely gone at this point. It honestly just doesn't offer anything that interesting compared to other languages. As others have pointed out, C# is in many ways its spiritual successor. Go offers a much richer library collection, is similarly lightweight, but has a better resource cleanup story (both defer and garbage collection). Rust offers an even lighter weight runtime and throws in rich concurrency and safety guarantees. FreePascal offers...safer strings than C, I guess?
I honestly prefer FreePascal to C, but I just think that ship has sailed at this point.
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I am novice, so be gentle. I know this might seem dumb.