[erlang-questions] UBF(A) vs ETF / UBF(C) vs gen_fsm

Edmond Begumisa <>
Sat Sep 25 18:40:25 CEST 2010


My apologies,

Ignore that first reply with a blank 'from' address -- that was an  
incomplete draft that my caffeinated fingers decided to send all on their  
own.

- Edmond -

On Sat, 25 Sep 2010 20:39:43 +1000, Joe Armstrong <> wrote:

>  I've been thinking ...
>
> It would be really great if I could send messages from a browser
> to erlang.
>
> I want to add an extra button to firefox that when pressed
> analyzes something about the current page and sends a message
> to an erlang server.
>
> I was reading about solvent
>
> http://simile.mit.edu/wiki/Solvent
>
> some quotes
>
> " Interactively highlight parts of the page you wish to scrape,
> directly in your browser, and obtain the right XPaths for them
>
>   Edit and execute the scraper code directly in the browser, making
> the development cycle fast and incremental
>
>  Save and publish the scraper with the required metadata, so that
> others can discover it
>
>  ..."
>
> This is *exacty* what I want to do - highlight some text in the
> brower - as I release the mouse the highlighted text is sent
> to and erlang server to be analysed and stored.
>
> IMHO bookmarking a site is not interesting - it's some small fragment
> on a page that interest me - I want to:
>
>      a) highlight it
>      b) edit the highlighted bit (ie throw me into an editor)
>      c) store the edited result
>
> (later I might even be able to "pre-read" a new page finding
> what might be interesting for me in the page :-)
>
> This is very generic - if I could isolate "analyze something about the
> current page" into a convenient js module then I could do all sort of
> fun things.
>
> This seems to require a firefox plugin - any idea how to write this?
>
> If I want to start a collaborative project where do I advertise for
> smart javascript programmers who know the firefox internals.
>
> The erlang stuff is easy :-) but the js is tricky - (and I guess this  
> group is
> not the best lace to ask js questions?)
>
> (( where is the best group for this (ie js questions)))
>
>
>
>
>
> On Thu, Sep 23, 2010 at 3:19 PM, Edmond Begumisa
> <> wrote:
>> Thanks Scott, I was trying to figure out how to do that... documentation
>> links I was referred to are a bit scattered at the moment. I'm sure when
>> they get round to working on them the Gemini UBF tools will spread.
>>
>> - Edmond -
>>
>> On Thu, 23 Sep 2010 06:43:36 +1000, Scott Lystig Fritchie
>> <> wrote:
>>
>>> Edmond Begumisa <> wrote:
>>>
>>>>> Having parsed the JSON (or UBF(A) ) the parse trees would be
>>>>> essentially the same thing so the contract checker would be easy.
>>>
>>> eb> Ditto! It's actually that blog entry that got me to look at UBF
>>> eb> (what ever happened to part II of that BTW!?!) I've been
>>> eb> contemplating using Gemini's UBF-JSON to make life easier on the
>>> eb> XULRunner side. I don't know if you've had a look at/recommend  
>>> their
>>> eb> implementation...
>>>
>>> eb> http://github.com/norton/ubf-jsonrpc
>>>
>>> Yes, that's what the ubf-jsonrpc package does.  There's also the option
>>> of using the http://github.com/norton/ubf stuff as-is to implement a
>>> "JSF" server, which is straight JSON across a TCP socket (i.e., without
>>> any JSON-RPC HTTP stuff).
>>>
>>> IIRC, it's just a server-side configuration option {proto, ubf} or
>>> {proto, jsf} or {proto, ebf} to have an Erlang server speak UBF(A),
>>> "JSF", or UBF-terms-encoded-with-term_to_binary(), respectively.
>>>
>>> -Scott
>>>
>>> ________________________________________________________________
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>>
>>
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