Consider we are generating a category bar with 2 levels.

This is an example about the XMLTemplate

template = XMLTemplate@"


   <wolfram:sequence values='#Root'>

 <li><wolfram:slot id=\"SequenceIndex\"/>: <wolfram:slot \



   <wolfram:sequence values='#Leaf'>

 <li><wolfram:slot id=\"SequenceIndex\"/>: <wolfram:slot \




list = Thread[{a, b, c}~

   List~{{a1, a2, a3}, {b1, b2}, {c1, c2, c3, c4}}]



    Association["Root" -> #[[1]], "Leaf" -> #[[2]]]] & /@ 

  list // StringJoin

    <ul>   <li>1: a</li>    <li>1: a1</li>    <li>2: a2</li>    <li>3: a3</li> </ul><ul>   <li
>1: b</li>    <li>1: b1</li>    <li>2: b2</li> </ul><ul>   <li>1: c</li>    <li>1: c1</li>
    <li>2: c2</li>    <li>3: c3</li>    <li>4: c4</li> </ul>

Here, actually, we used TemplateApply several times.

My question is:

is it possible to achieve the above effect and use TemplateApply only once?

The way below, I'm trying to achieve this by using TemplateApply twice, and If I can change the Root in the verbatim tag becomes "a","b" successfully.

str = "<wolfram:sequence values='#Root'>


 <wolfram:slot id=\"1\" /></li>



 <wolfram:slot id='Root' />




TemplateApply[XMLTemplate[str], Association["Root" -> {"a", "b"}]]

            <li>         a</li>       <seceond-level>         <wolfram:slot id='Root' />      
</seceond-level>        <li>         b</li>       <seceond-level>         <wolfram:slot id
='Root' />      </seceond-level>

Without verbatim, a TemplateSlot will lose its function after TemplateApply, though we can use StringReplace which seems not the elegant way.

  • $\begingroup$ How have you learned about id=\"SequenceIndex\"? $\endgroup$
    – Kuba
    Commented May 5, 2015 at 7:03
  • $\begingroup$ I mean, how do you know you can write SequenceIndex and it works. I cn't find it in docs. $\endgroup$
    – Kuba
    Commented May 5, 2015 at 8:16
  • $\begingroup$ @Kuba there are several examples in ref/XMLTemplate, that's t = XMLTemplate["<ul> <wolfram:sequence values='#planets'> <li><wolfram:slot id='1'/></li> </wolfram:sequence> </ul>"]; TemplateApply[t, <|"planets" -> {"jupiter", "mars", "earth"}|>] $\endgroup$ Commented May 5, 2015 at 8:19
  • $\begingroup$ And where is id=\"SequenceIndex\" there? $\endgroup$
    – Kuba
    Commented May 5, 2015 at 8:21
  • $\begingroup$ @Kuba Using named variables: t = XMLTemplate["<ul> <wolfram:sequence values='#planets' slot='planet' index='counter'> <li><wolfram:slot id='counter'/>: <wolfram:slot \ id='planet'/></li> </wolfram:sequence> </ul>"]; TemplateApply[t, <|"planets" -> {"jupiter", "mars", "earth"}|>] ·SequenceIndex seems just a DIY name.· $\endgroup$ Commented May 5, 2015 at 8:34


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