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...is dealt with as *one* format chunk, since "%q" is not a valid format. The code I have just committed now gives a longer erro message, that should be more helpful. Thank you for the suggestion! > there's also an issue with the additional arguments supplied after the > format: =A0any superfluous arguments are ignored (this is not documented, > as far as i can see), I think we should signal an error if there are too many arguments. Could anyone think of a case where the current behavior is desirable ? > but they *are* evaluated nevertheless, e.g.: > > =A0 =A0sprint...