Re: Generating Source Code.

dara_gallagher@my-deja.com writes:


> 2) Adding extra parenthesis even if they are not strictly
> necessary from a grammatical point of view but might
> improve the readability.


I don't know what language you are generating code for, but if it were
C/C++ I'd make a couple of rules based on precedence. Some people,
myself included, aren't entirely familiar with the precedence rules.
I therefore tend to add parenthesis when the precedence isn't clear (I
believe John Ousterhoot was the first person I heard say this). Some
simple rules for this would be easy to add for a AST for C. Take for
instance the dereference operator, if the expression is very simple
parenthesis are not necessary:


int * p = ...;
*p = 5


If the expression is more complex then, add parens:


*(p->Pattern_ref()->Slot(2))


Similarly for the address-of operator '&'.


But you probably already thought of this already!


(raig


--
Craig Smith 'Discussion is an exchange of knowledge;
Mitarbeiter, Informatik argument an exchange of ignorance.'
University of Trier - Robert Quillen
Trier, Germany www.informatik.uni-trier.de/~smith

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