Re: EPUB woes

["Keith J. Schultz" <schultzk@uni-trier.de>]

Hi Hans,


Am 18.11.2013 um 13:21 schrieb Hans Hagen <pragma@wxs.nl>:

> On 11/18/2013 10:00 AM, Keith J. Schultz wrote:
> 
>> 	2) Now, what a EPub-READER must implement to handle is very
>> 	     little. There are HARDLY ANY provisions that a certified EPuB-READER has
>>              to implement any particular engine or features therein to display/render
>> 	     the information contain in the EPub-file/wrapper.
> 
> right, and I'm not going to waste time on it till i have a decent ebook reader that behaves well
	The point you are missing is that the ereaders are behaving well. They are following the epub 
         standard, and that to the letter of the standard. The problem is that the standard does not 
	enforce any particular implementation. If you look at the slow progress of the standard that 
	actually requires a full implementation of the HTML5 standard. That  wait will very long.

	Furthermore, ereaders are made by companies more interested in profits than spending a few Euros
	more to put decent HTML engines into their readers. Why they do not do that is beyond me!
> 
>>> 3. Modify the way in which ConTeXt generates the XML files. Ideally, I should be able to write something like
>> 	Would be nice if there where commands in ConTeXt or a module for defining what should go into the CSS and a
>> 	mode "epub" where the ConTeXt commands are converted to suitible HTML5 structures that are suitiable for
>> 	most ereaders.
>> 		Features:
>>                        1) margins in percentages
>>                        2) font sizes based on em
>> 	               3) a new file for every chapter optional for sections user defined
>> 	Just a few. Lots more can be found in any decent documentation on writing ebooks.
> 
> context outputs xml and as a bonus provides a css too ... one can always convert that xml to his/her ebooks liking .. maybe at some point the mtx-epub script will do that

	I always to like to look at programming as modular and would think that a epub/ebook module would be nice that maps
	there are commands for layingout ebooks. these commands can then be mapped back to standard context commands.
	For some interested in producing a epub then can use the conventions for producing ebooks and ConTeXt can provide the
	math conversions to regular page dimensions used in PDFs for proofing or creating a printed version. It would also make the
	creation of EPubs from ConTeXt a simple parsing exercise.   

regards
	Keith.
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