Re: Symbol expansion in body Parameter

[Ludovic Courtès]

Hi,

Volker Renneberg <address@hidden> writes:

> def @CiteRemoveYear
>    body @Body
>    {
>        def @Filter { sed
> "'s/\\(.*\\)[0-9]\\{4\\}[a-z]\\{0,1\\}/\\1/g'" @FilterIn > @FilterOut
> }
> #        def @Filter { cat @FilterIn >> testoutputfile }
>            @Body
>    }
>
> The following application
>    @CiteRemoveYear { Haase et al. 2007f }
> produces the correct output
>    Haase et al.
>
> However, applications of the following format
>    @CiteRemoveYear address@hidden&&haase2004 @Open address@hidden
> do not work. Some debugging (see above commented line in the @Filer
> definition) showed that the body argument to @CiteRemoveYear is not
> begin expanded. This means, the string "@Reference&&haase2004 @Open
> address@hidden" is being sent to sed and not the actual @Label content.

According to the Expert's Guide, Section 2.4, it's the right parameter
of address@hidden' that gets filtered, not its body:

  The presence within @Sort of a definition of a symbol called @Filter
  tells Lout that the right parameter of @Sort is to be filtered before
  inclusion.

I haven't tried it, though.

Hope this helps,
Ludovic.