[NTG-context] \doifelse not working, \doiftextelse breaking

Pablo Rodriguez oinos at gmx.es
Fri Oct 9 16:31:20 CEST 2020

On 10/9/20 4:08 PM, Wolfgang Schuster wrote:
> [..]
> You need a % at the end of the definition, otherwise TeX expects a space
> after the second argument to end the command.
> \unexpanded\def\startswith[#1][#2]%
>    {...}

Many thanks for your ultra-fast reply, Wolfgang.

Now I see muy mistake. In my previous command definitions with two
arguments, the opening brace was right after the second argument.

> To improve your command and allow a space between both arguments you can use
> \unexpanded\def\startswith
>    {\dodoubleargument\dostartswith}
> \def\dostartswith[#1][#2]%
>    {...}

Now I see with \dosingleargument, \dodoubleargument and
\dotripleargument are there.

Which are the improvements to the command added by \do*argument?

> or just add a dummy parameter and use #1 and #3 to pass the arguments
> \unexpanded\def\startswith[#1]#2[#3]%
>    {...}

This is shorter, but it looks to creepy (even for my code).

Many thanks for your help,


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