<br /> > Michael wrote:<br />> I do hope that your algorithm for generating 13 digits from 10 has been <br
/>>validated with <font><font>isbn.org</font></font>, since all the check digits will change. I <br />>
believe it is crucial for postgresql to generate isbn codes in both 10 <br/>> and 13 digits<br /><br /> Indeed now
thatsee the module it's finally close to be accepted as an official module, I'm verifying my algorithm against the one
inthe ISBN User Manual and all the current information I can get my hands into (I first created the module a couple
yearsago, and there wasn't as much information back then.)<br /> <br /> The module internally keeps all the numbers in
EAN13mode, and it only converts the numbers to ISBN when required or needed by the selected data type.<br /> <br />
>and in the two separate ways required of publishers on <br />>
their bar codes, with just the 10 digit input. This is just a special <br/>>
case for the overall classification system, so the initial 3 digit code <br/>>
for book publishers should not be hard wired. <br/> <br /> I got lost in what you said here, could you please be more
specific?what is that about the initial 3 digit code you're mentioning?<br /> do you mean "the two separate ways", you
mean bothISBN and ISBN13 as in:<br /><font face="Arial"><p align="left"> ISBN-13: 978-1-873671-00-9<p align="left">
ISBN-10:1-873671-00-8</font> ?<br /> <br /> Shortly, I'll be further improving the performance and doing some tweaking
inother areas, as well as updating the ISBN hyphenation ranges and probably adding UPC support.<br />I'm still not sure
ifto include hyphenations in the EAN13 codes as it seems it's not part of the standard, thus 0036000291452 and
9781873671009would be to examples of how the <font>EAN13 numbers would show without hyphenation....</font><br /> <br
/>Thanks for your concerns,<br /> Kronuz.<br /><br />"Fools rush in where fools have been before" - Unknown<br /><br
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