Michael Van Canneyt via fpc-pascal wrote:


On Fri, 15 Dec 2023, Adriaan van Os via fpc-pascal wrote:

Note that the same ambiguity exists in the <exception-handler> syntax (and this is less well known)

exceptionhandlers = [ exception-handler { ";" exception-handler } [ "ELSE" statement-list ] | statement-list ] . exception-handler = "ON" [ identifier ":" ] class-type-identifier "DO" statement .

as <exception-handler> ends with a <statement> and the optional <"ELSE" statement-list> part start with "ELSE". Sloppy language design, I assume by Borland.

What exactly do you consider "sloppy" ?

The ambiguity in the syntax whether ELSE belong to <statement> or to <"ELSE" 
statement-list>.


The fact that the semicolon before the else is optional ?

I don't see a semicolon in the formal syntax.

Regards,

Adriaan van Os

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