I want to run Httrack and only crawl "interlanguage links". By this, I mean
links that take you from a page written in say, English to its equivalent page
written in say, French.

I other words, I'd like to be able to tell Httrack to only follow links whose
anchor text contains French or Français or fr (case insensitive). Or, click
on buttons or select options whose labels match the above.

Looking at the the httrack command line options, it seems you can filter based
on the URLs, but not based on the anchor text. I also looked in the
documentation of the callbacks, and it seems the linkdetected callback only
receives the URL. No other information about the element whose "clicking" lead
to that URL.

Is there a way I could get to this functionality?
If not, I'd be willing to see if i could add this into the source, but I would
need some guidance. Httrack is a pretty intimidating piece of code for someone
who hasn't done C in 20 years ;-).

Thx.

Alain