Use it as below.

<$macrocall $name=foo x=<<text>> /> 


But this is not nested macro! By nesting it means a macro inside another 
macro as internal macro.
Seems this not possible in Tiddlywiki.


Not directly related but useful

https://kookma.github.io/TW-Scripts/#Nestetd%20Macro%20-%20Passing%20Variable

--Mohammad



On Saturday, January 19, 2019 at 11:29:55 PM UTC+3:30, Joe Armstrong wrote:
>
>
> I have two macros 
>
> \define text()
> A line of text
> \end
>
> \define foo(x)
> fooStart $x$ fooStop
> \end
>
> So
>
> <<text>> is replaced by  "A line of text"
>
> and 
>
> <<foo "abc">> is replaced by "Start abc fooStop"
>
> But <<foo <<text>> >>
>
> is replaced by "fooStart <<text fooStop >>"
>
> And NOT "fooStart A line of text fooStop" as I had expected.
>
> After a lot of head scratching I realised that this means that the 
> argument (x) to foo is the
> string "<<text" ie the first occurrence of ">>" to the left
> of the start "<<" of the macro and not the second occurrence. 
>
> ie. "<<" and ">>" do not properly nest as I had expected.
>
> This seems like a pretty big pothole for a beginner to fall into ...
>
> So what is the accepted idiom for using a macro result
> as the input argument to another macro - how does one chain macro calls 
> together?
>
> Cheers
>
> /Joe
>
>

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