10.1 Procedure declaration

A procedure declaration denes an identier and associates it with a block of code. The procedure can then be called with a procedure statement.

_________________________________________________________________________________________________________ Procedure declaration
-- --procedure declaration procedure header- ;-subroutine block-;-----------

-- --procedure header procedure---|-----identi er--------
-quali ed method identi er
- ----formal parameter list|-------------------------------------------
-modi ers -

-- --subroutine block-|-----block--------------------------------------
|-external directive-|
|---asm block----|
----forward------
___________________________________________________________________

See section 10.3, page 352 for the list of parameters. A procedure declaration that is followed by a block implements the action of the procedure in that block. The following is a valid procedure :

Procedure DoSomething (Para : String);
begin
Writeln ('Got parameter : ',Para);
Writeln ('Parameter in upper case : ',Upper(Para));
end;

Note that it is possible that a procedure calls itself.

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