Hi Alex,
2015-06-24 12:49 GMT+01:00 Alexander Burger <a...@software-lab.de>: > Hi Luis, > >> These are beginner questions, but why doesn't this work? >> >> (in "i.html" >> (while (from "<a href=\"") >> (parseLink (till "<" T)) >> )) > > This depends on what 'parseLink' does. > > (till "<" T) returns a transient symbol, you can try it as > > (in "i.html" (from "<a href=\"") (till "<" T)) > -> "http://..."; > > So perhaps 'parseLink' wants a list of characters, to be able to parse > it? Then you might better do: > > (in "i.html" (from "<a href=\"") (till "<")) > -> ("h" "t" "t" "p" ":" "/" ...) > > i.e. without the 'T' argument to 'till'. > > >> It's just a substitution of `msg` by a call to `parseLink` that >> doesn't seem to get called. > > 'parseLink' will get called, if at least one pattern "<a href=\"" is in > the file. In the above example, I used `in` and the call to `parseLink` works fine. But (client "picolisp.com" 80 "wiki/?home" (while (from "<a href=\"") (parseLink (till "<")))) does not. AFAICT, each while cycle returns a list which in my view would be used as an argument to `parseLink`, but it doesn't work as I expect. `in` opens an input channel, `client` seems to me to return a list. I tried to save the whole html file with a `out`, before the `client` instruction, so that I could parse the file as you've shown before, but had no success either. A file is created but it's empty. (out "hh.html" (client "picolisp.com" 80 "wiki/?home")) (out "hh.html" (client "picolisp.com" 80 "wiki/?home" (while (from "<a href=\"") (msg (till "<"))))) Also tried to append to a file with each iteration: (client "picolisp.com" 80 "wiki/?home" (while (from "<a href=\"") (out "+hh.html" (msg (till "<"))))) As `client` is build as a library, I couldn't get an english description as the core functions have, so it's more difficult for me. Frustation is high right now... :-( -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
