Can we deal with nested macro calls and how?

[peuhpeuh singe]

Hello twexperts !

I have a tiddler "fooTimeLine" with a field "dueto" containing a date in tw format. I then want to create a button that is associated to the creation of a new tiddler having as fields:
1) "dueto" with the value in "fooTimeLine" and
2) "end" with the value corresponding to the day after those of "dueto"

My problem is with point 2). I use the nice dateTime macro ($:/macros/skeeve/dateTime.js at http://tiddlystuff.tiddlyspot.com) but I do not know how to resolve the different macro evaluations:

\define nextDay(day)
<$macrocall $name="dateTime" ts=$day$ format="YYYY0MM0DD0000000" add="+1D"/>
\end
dateTime

<$set name="end" value=<<nextDay {{fooTimeLine!!dueto}}>>>

<$button>
<$x-maketid  $title={{fooTimeLine!!appointmentName}}  tags="Date" text="a few comments"
 dueto={{fooTimeLine!!dueto}} end=<<end>>/>

Create
</$button>

</$set>

 which does not work due to the fact macro consists in simple substitution. I am ok with why it does not work but I do not know how to tackle the problem without rewritting a dedicated macro and I thus request your help : Can we deal with nested macro calls and how ?

[BJ]

HI Peuhpeuh,

there are may ways to fix this, problably the easiest is to change the macro:

\define nextDay(day)
<$macrocall $name="dateTime" ts={{$day$}} format="YYYY0MM0DD0000000" add="+1D"/>

\end
dateTime
<$set name="end" value=<<nextDay "fooTimeLine!!dueto">>>

all the best

BJ

[peuhpeuh singe]

Thanks for your answer BJ. However, (and I maybe misunderstood something in your solution) but it provides me the same result as my solution which is that the created tiddler (with title {{fooTimeLine!!appointmentName}}) as a field end that equals to "$macrocall $name="dateTime" ts={{fooTimeLine!!dueto}} format="YYYY0MM0DD0000000" add="+1D"/> and not to the corresponding subsitution. Any ideas ?

Thanks in advance,
Peuph

[BJ]

OK try this

\define nextD(day)

<$button>
<$x-maketid  $title={{fooTimeLine!!appointmentName}} tags="Date" text="a few comments"

 dueto={{fooTimeLine!!dueto}} end=<<dateTime ts:$day$ format:"YYYY0MM0DD0000000" add:"+1D">>/>
MAKE IT
</$button>
\end

----
<$macrocall $name="nextD" day={{fooTimeLine!!dueto}}/>

[peuhpeuh singe]

Thanks it does the job.
Nevertheless, it is so tricky ! and I really like tw5 and I think that, if there is really no more intuitive way to deal with that, it deserves one.

Thanks all for developping all this useful stuff.

[Tobias Beer]

Hi there,

Would be great to see an example of your final implementation,
perhaps as an MTC somewhere.

Are you using a datepicker to modify that due-date later?

Best wishes,

Tobias.