atom() ambiguity

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Thanks, Graeme.  I get the first question on the for...loops, indeed, I
suspected it was for that purpose.

>>>>>
the second line here means:

If the variable "line" is an atom then...
<<<<<

Well, atom returns something.  Should this line be

if atom(line) =3D 1 then

This is because couldn't you write

if atom(line) =3D 0 then

Maybe if atom(line) then is a shorthand, but I don't think it is a good o=
ne
because it is ambiguous.

--Alan
 =

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