Is there a specific name for the prefix notation used in Delphi often?

Question

Possible duplicate:
Does my naming convention have a name?

The designation in question is described below:

• T for t ype
• P for p ointer
• F for f ield
• A for a rgument
• L for l ocal

et cetera, at least S is not in the list, but I'm not sure which line it stands for.

The first 3 prefices were with Delphi from the very beginning, the last 2 I noticed relatively recently. I would like to know the name of the notation (if there is one) and read the normative technical document (and then accept it).

Answer 1

Zarko Gajic has a pretty good list for Delphi: http://delphi.about.com/od/standards/l/bldnc.htm

Personally, I find conventions like this useful. I still remember my first FORTRAN language, where the agreement for integers was to start any letter from I to N with them, and it was easy to remember, because these are the first two letters of INteger.

Charles Calvert's Object Pascal Style Guide, Section 3.3, Naming Fields provides a brief but good guide on when to use Hungarian notation, and that identifier names for a single character are appropriate. My FORTRAN background (8 max symbol names) also made me use "N" as the number of elements and led to code, for example:

  DO 10 I = 1, N DO 20 J = I, N ... 20 CONTINUE 10 CONTINUE 

Oh! The memory hurts.

Answer 2

My personal favorite of all these standards is to obey the standards already set in the code in which you are located and not try to impose another standard 50% of the way and prevent religious discussions. p>

But if you put a lot of pressure on me, I admit that I prefer the Charlie Calvert standards used by the JVCL devs , the same as the section 3.3 "from LKessler above.

Answer 3

Hungarian notation.

With modern IDEs (including Delphi), many people (including me) feel that this is no longer necessary.

EDIT: Technically, this is not so Hungarian notation, because sometimes the prefix indicates the scope, not the type.