PL>> A function is used to return one value.

  IS> Ain't necessarily so - a function may return var parameters just like
  IS> any other procedure, as well as its function result:

 PL> Ok.. I see.

 PL> I was just repeating how I have been taught to use
 PL> functions at TAFE.. it's the schools' approved usage of
 PL> functions.  :)

Beware of fashions :)

See if the TAFE library has a copy of Kernighan and Plauger's 'Software
Tools in Pascal', for extensive examples of Really Good Code, many of which
return function results in Var parameters, meanwhile often returning the
function's result as a boolean or 'errorlevel' indicator.  A wee example,
from 'find' ..

[..]
begin
   if (not getarg (1, arg, MAXSTR)) then
      error ('usage: find pattern');
   if (not getpat (arg, pat)) then
      error ('find: illegal pattern');
   while (getline (lin, STDIN, MAXSTR)) do
      if match (lin, pat) then
         putstr (lin, STDOUT)
end;

Re SWAG, I think others have covered that pretty well, and I'm way behind
with my versions here.

Cheers, Ian

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