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[Norbert Nemec <address@hidden>]

To handle eprints in a bibliography, I have defined the following macro:

<assign|eprint|<macro|text|<hlink|<with|font-family|tt|[<arg|text>]>|http://arxiv.org/<arg|text>>>>

If the bibliography contains a tag like
   <eprint|cond-mat/0612369>
this is supposed to display "[cond-mat/0612369]" and hyperlink to 
"http://arxiv.org/cond-mat/0612369";

Problem is - the concatenation of the two parts of the hyperlink does 
not seem to work. As soon as I click on the link, I get the following 
backtrace:

--------------------------------------
In unknown file:
  ?: 0* [link-follow-ids ("%8C37E6C-A239A10")]
  ?: 1* [ovl-apply (100 . #<procedure #f (ids)>) (("%8C37E6C-A239A10"))]
In 
/home/nen10015/local/NNlab/src/texmacs/TeXmacs/progs/kernel/texmacs/tm-overload.scm:
306: 2  (let* ((fun (ovl-resolve ovl args))) (if fun (apply fun args) ...))
In 
/home/nen10015/local/NNlab/src/texmacs/TeXmacs/progs/link/link-navigate.scm:
  ...
368: 3  [go-to-url {(concat "http://arxiv.org/"; "cond-mat/0702295")} (0 
672 1 30 1)]
338: 4* (with (name label) (decompose-url name-label) ...)
338: 5  [apply #<procedure #f (name label)> ...
338: 6*  [decompose-url {(concat "http://arxiv.org/"; "cond-mat/0702295")}]
330: 7   (with i (string-index s #\#) ...)
330: 8   (let* ((i (string-index s #\#))) (if (not i) (list s "") ...))
330: 9*  [string-index {(concat "http://arxiv.org/"; 
"cond-mat/0702295")} #\#]

/home/nen10015/local/NNlab/src/texmacs/TeXmacs/progs/link/link-navigate.scm:330:11: 
In procedure string-index in expression (string-index s #\#):
/home/nen10015/local/NNlab/src/texmacs/TeXmacs/progs/link/link-navigate.scm:330:11: 
Wrong type argument in position 1 (expecting string): (concat 
"http://arxiv.org/"; "cond-mat/0702295")
--------------------------------------

So it seems, the <hlink||> tag does some kind of implicit quoting of the 
second argument. How would I work around this?

Greetings,
Norbert