Re: [Firebird-devel] Exceptions with custom message text

[Alex P. <pe...@in...>]

> 
> What about "{1}", "{2}" ... "{n}"? That would handle the seond problem
> outlined above, allowing something like FOO='Hey {3}, you can't {1}
> record #{2}!', and at use
> EXCEPTION FOO('delete', old.rec_id, 'Mike')
> 

This syntax with string-only substitution sounds good for me. 
Must we enable exceptions like:
FOO='Hey {3}, you can't {1} record #{3}!'
Should we treat this as a bug or:
'Hey Mike, you can't delete record #Mike!'
Should we require precise match for number of exception params
and {n} in exception or may replace missing one with empty strings
and ignore unneeded?

Alex.