Re: [Barcode4j-users] tab character

[dirk o. <di...@on...>]

Thanks Jeremias and sorry for being incomplete in the description of the
problem (xml is generated in java).

This question was part of a feasability study, so when I really need it
I know what to do ;-)

cheers,
dirk

On Fri, 2012-05-25 at 10:40 +0200, Jeremias Maerki wrote:
> Ah, now I get it. The way you wrote your message I assumed you generate
> barcodes with the Java API (using "\t" and "(char)"). You didn't say
> that you're using XSL-FO. In that case, you're out of luck at the moment.
> There is currently no escape syntax for messages coming from XML in
> order to use special-purpose characters. Sorry.
> 
> You can file a feature request [1] but please don't expect a timely
> turn-around. You could also implement that yourself and send a patch
> against Barcode4J if you're up to it.
> 
> [1] https://sourceforge.net/tracker/?atid=615507&group_id=96670&func=browse
> 
> 
> Jeremias Maerki
> 
> 
> On 25.05.2012 09:49:37 dirk ooms wrote:
> > Hi Jeremias,
> > 
> > thanks for the pointers to the online tools. i tried the barcode on the
> > 3 online tools and they are all showing a single whitespace (this could
> > be due to the html presentation itself). in attachment i included the fo
> > xml source and a png of the produced barcode (not sure whether the
> > mailing list allows attachments).
> > 
> > dirk
> > 
> > On Fri, 2012-05-25 at 08:41 +0200, Jeremias Maerki wrote:
> > > Hi Dirk,
> > > 
> > > that's clearly a problem on the recognition side, not on the generator
> > > side. I have unit tests in Barcode4J that explicitely test tabs in Code
> > > 128 symbols, for example:
> > > 
> > > assertEquals("->BCode->A<HT><HT>128", encodeToDebug("Code\t\t128", encoder));
> > > 
> > > So, you can see that I can simply use '\t'.
> > > 
> > > Unfortunately, you don't say how you are scanning the barcodes. If
> > > you're using a hardware scanner, you may have to change its
> > > configuration. A software decoder might not be able to report the tab at
> > > all, for example, if it returns the message in XML form where tab is a
> > > whitespace character that is not guaranteed to live through everything.
> > > 
> > > Try an online scanner to compare the scanning results from multiple
> > > scanners:
> > > http://demos.accusoft.com/barcodexpressdemo/Default.aspx
> > > http://online-barcode-reader.inliteresearch.com/default.aspx
> > > http://www.datasymbol.com/barcode-recognition-sdk/barcode-reader/online-barcode-decoder.html
> > > 
> > > HTH
> > > Jeremias Maerki
> > > 
> > > 
> > > On 24.05.2012 19:23:38 dirk ooms wrote:
> > > > Hello,
> > > > 
> > > > first of all, i've been using barcode4j for a while in my application
> > > > and it works fine. thanks for that.
> > > > 
> > > > today i needed to create a barcode of a string that contains a tab (the
> > > > reason for this is that the barcode needs to fill up 2 fields in an html
> > > > form). so i tried to provide this string to the barcode4j 'message'
> > > > field in different ways '\t', (char)9, ..., but whatever i tried the tab
> > > > was replaced by a single whitespace (on the printout and after
> > > > scanning). i am using code128 and started reading about code set A, B
> > > > and C and even tried to include code set switches in the string, but
> > > > without any success. i'm probably missing something basic here. any
> > > > suggestion?
> > > > 
> > > > cheers,
> > > > dirk
> > > 
> > > 
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