[stringtemplate-interest] Indirect attribute lookup

[Roman Odaisky]

Greetings,

> >>> st = StringTemplate("$(a)$")
> >>> st["a"] = "b"
> >>> st["b"] = "c"
> >>> print unicode(st)
>
> b
>
> It is my understanding that this is supposed to print “c”. Am I severely
> mistaken?

Okay, I am, I was inattentive. $(something)$, it turns out, looks for a 
template, not attribute.

What I was trying to achieve was:

<tag $["id", "class", "title", etc]:{name|$(name):{$name$="$it$ "}$}/>$

the idea was to be able to write

$tag(id={some-id}, title={some-title})$

and to get

<tag id="some-id" title="some-title" />

It turns out indirect attribute lookup is only available as attr.(property). 
How can I then create a template like the above?

-- 
TIA
Roman.
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