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Re: "Magic" Variables?


Maciej Stachowiak <mstachow@mit.edu> writes:

> Is there any way in Guile to have special code executed whenever a
> particular variable is set? I'm pretty sure there isn't, but I wanted
> to make sure.

There isn't.

> Such a thing would be useful for avoiding a lot of ad-hoc setter
> procedures in guile-based configuration languages where some immediate
> effect should take place when certain options are set,

This (the active variables) feels like an unschemey way of solving the
problem.  Jim Blandy once suggested:

  (icon-font font12)

to set the parameter `icon-font' and

  (icon-font)

to get its value.

Best regards,
/mdj