mailing-list for TeXmacs Users

[Javier Arántegui <address@hidden>]

Hello,

I am trying to learn how I can to write macros in Scheme. Yesterday I wrote 
an 
small macro (it's in the attached file) at home and it worked fine, it just 
counts the lenght of a word (hey! I'm just learning ;-) At home I used 
TeXmacs 1.0.4 (most updated version aviable at Fink) in an iBook and it 
worked fine. But, today I tried it in my office PC and I got this error:

<wrong-type-arg|string-length|Wrong type argument in position %s:%S|?|#f>

I'm using here TeXmacs 1.0.4.4. Any idea of what is going wrong?

Thanks in advance,

Javier


-- 

Javier Arántegui
Dept. Tecnologia de Alimentos / Dept. of Food Technology
Universitat de Lleida / University of Lleida (Spain)
         
Tel. +34 973702595
Fax  +34 973702596
http://www.tecal.udl.es
<TeXmacs|1.0.4>

<style|generic>

<\body>
  <assign|contar|<macro|texto|<extern|(lambda (texto) (string-length
  texto))|<quote-arg|texto>>>>

  N�mero de letras de Corcho: <contar|Corcho>
</body>

<\initial>
  <\collection>
    <associate|language|spanish>
    <associate|preamble|true>
  </collection>
</initial>