Re: [NTG-context] MetaFun - "remove the paths of text" from a rectangle to let the background visible

On 24 Dec 2020, at 00:14, Garulfo wrote:

Thanks Taco,

I made some progress : https://wiki.contextgarden.net/Talk:Cover_Pages

I now have two additional questions ... ;-)

- How can I deal with "space" characters (because current solution requires to explicitly add the ~ character)

Here’s what I would do (which is probably not the nicest way of doing it). Just enable \obeyspaces while reading the argument to \EmptyLetters, then disable it again immediately (that is needed if you have to go back to TeX from Lua): \def\EmptyLetters {\obeyspaces\doEmptyLetters} \def\doEmptyLetters#1% {\normalspaces ... } and in \whatever you then need \doifinstringelse{ }{#1} Best wishes, Taco