Re: \define a command with square-bracket arguments

[Wolfgang Schuster <wolfgang.schuster@gmail.com>]

Am 27.09.2012 um 18:16 schrieb Marco Patzer <homerow@lavabit.com>:

> Question for the others: What's the difference of \dodoubleargument
> and \dodoubleempty? I expected \dodoubleargument to throw an error
> since the arguments are supposed to be mandatory.

In MkIV Hans didn’t add this check and in MkII he disabled is for command
with three or less argument but even then you get only a message in the log
when your command has no argument (i.e. a command with four argument
complains only when it has zero argument but doesn’t complain when it
has one to four arguments).

Even though there is no difference between the \*empty and \*argument
commands I would use both because you can see in the source that
a command with \*argument has mandatory arguments while the
argument for a \*empty command are optional.

Wolfgang
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