Re: [Gambas-user] Base 64 question
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Re: [Gambas-user] Base 64 question
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From: Caveat <Ga...@ca...> - 2011-04-28 10:51:36
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Huh? The files are not (afaik) xml. Does gb.xml have some hidden feature that decodes a base64 file to its binary equivalent? Could you maybe expand just a little on your 8-character response? ;-) On Thu, 2011-04-28 at 12:16 +0200, Fabien Bodard wrote: > gb.xml ! > > 2011/4/28 Caveat <Ga...@ca...>: > > Hi Richard, > > > > I don't know of any base64 decode function in Gambas, but then I didn't > > look that hard ;-) > > > > There are various different flavours of base64, so be sure you know > > which variant you're dealing with. > > > > I enclose with this mail a source archive of a little project I've put > > together (sorry, it's Gambas2, hope that's OK) that demonstrates > > decoding (and encoding) of base64 data. I found the information on how > > to put together the encode and decode algorithms here: > > http://en.wikipedia.org/wiki/Base64 > > > > There's also a reference to base64 in Gambas here: > > http://www.gambasforum.com/index.php?topic=330.0 > > The algorithms given in those code snippets could well be far more > > efficient than mine. > > > > My Base64 Project > > ----------------- > > First thing to try is just hit the Encode button, it should convert the > > text in the top textarea into base64 and place the result in the lower > > textarea. Generally, if the In textbox is blank, the input for Encode or > > Decode will be the upper textarea, and if the Out textbox is blank, the > > output of the Encode or Decode will be shown in the lower textarea. To > > encode binary data, you'll need to use a file as input, so use the In > > textbox to specify the file name. To decode base64 that represents > > binary data, you'll need to use a file as output, so use the Out textbox > > to specify the output file name. > > > > You can try out binary to base64 using fluffy.jpg (shipped with the > > project) as your In file. > > > > To test round-trip (so start with a binary, encode it to base64, then > > decode the base64 data to make an identical binary)... enter fluffy.jpg > > in the In textbox, blank the Out textbox, hit Encode. In the lower > > textarea Select All, Copy... then in the upper textarea Paste. Now > > clear the In textbox and enter coffee.jpg in the Out textbox. Hit > > Decode. You *should* find a new file in your Base64 project directory > > called coffee.jpg, and it *should* be identical to the fluffy.jpg > > shipped with the project. > > > > I'm not convinced that my completely untuned, horribly inefficient > > algorithms in Gambas will be the best way to go if speed is of the > > essence or if the pdf files are gonna be more than a few 100 kbs... you > > might find it quicker/more robust to call out to a built-in function in > > java/python/some other program... > > > > Anyways, all the (commented) source is there for you to see/fiddle > > with...so have fun, but if you have any questions, just give me a shout. > > > > Regards, > > Caveat > > > > > > > > On Thu, 2011-04-28 at 07:38 +1000, Ian Haywood wrote: > >> No, HL7 parsing is fine, let me restate the question: does gambas have > >> an inbuilt function to > >> decode base 64 data? > >> > >> Ian > >> > >> On Thu, Apr 28, 2011 at 3:48 AM, nando <na...@no...> wrote: > >> > Health Level 7 file format > >> > To start visit: > >> > http://en.wikipedia.org/wiki/Health_Level_7 > >> > > >> > > >> > ---------- Original Message ----------- > >> > From: richard terry <rt...@pa...> > >> > To: mailing list for gambas users <gam...@li...> > >> > Sent: Wed, 27 Apr 2011 18:13:57 +1000 > >> > Subject: [Gambas-user] Base 64 question > >> > > >> >> Hi list, > >> >> > >> >> I've a HL7 file apparently with embedded base64 data (as a pdf) I wondered if > >> >> there iwas any way to de-encode the data, if that is the right syntax. > >> >> > >> >> Regards > >> >> > >> >> Richard > >> >> > >> >> ------------------------------------------------------------------------------ > >> >> WhatsUp Gold - Download Free Network Management Software > >> >> The most intuitive, comprehensive, and cost-effective network > >> >> management toolset available today. Delivers lowest initial > >> >> acquisition cost and overall TCO of any competing solution. > >> >> http://p.sf.net/sfu/whatsupgold-sd > >> >> _______________________________________________ > >> >> Gambas-user mailing list > >> >> Gam...@li... > >> >> https://lists.sourceforge.net/lists/listinfo/gambas-user > >> > ------- End of Original Message ------- > >> > > >> > > >> > ------------------------------------------------------------------------------ > >> > WhatsUp Gold - Download Free Network Management Software > >> > The most intuitive, comprehensive, and cost-effective network > >> > management toolset available today. Delivers lowest initial > >> > acquisition cost and overall TCO of any competing solution. > >> > http://p.sf.net/sfu/whatsupgold-sd > >> > _______________________________________________ > >> > Gambas-user mailing list > >> > Gam...@li... > >> > https://lists.sourceforge.net/lists/listinfo/gambas-user > >> > > >> > >> ------------------------------------------------------------------------------ > >> WhatsUp Gold - Download Free Network Management Software > >> The most intuitive, comprehensive, and cost-effective network > >> management toolset available today. Delivers lowest initial > >> acquisition cost and overall TCO of any competing solution. > >> http://p.sf.net/sfu/whatsupgold-sd > >> _______________________________________________ > >> Gambas-user mailing list > >> Gam...@li... > >> https://lists.sourceforge.net/lists/listinfo/gambas-user > > > > > > ------------------------------------------------------------------------------ > > WhatsUp Gold - Download Free Network Management Software > > The most intuitive, comprehensive, and cost-effective network > > management toolset available today. Delivers lowest initial > > acquisition cost and overall TCO of any competing solution. > > http://p.sf.net/sfu/whatsupgold-sd > > _______________________________________________ > > Gambas-user mailing list > > Gam...@li... > > https://lists.sourceforge.net/lists/listinfo/gambas-user > > > > > > > |