[NTG-context] More spurious <break/> problems in exports

Hans Hagen j.hagen at xs4all.nl
Wed Jul 18 16:56:12 CEST 2018


On 7/18/2018 4:59 AM, Rik Kabel wrote:
> List,
> 
> Another oddity with <break/> elements in XML / xhtml / html export:
> 
> With a defined highlight, a break is inserted if the highlight is the 
> first item in an environment. If it is not the first item in the 
> environment, no break is inserted.
> 
> Most of the other odd breaks can be dealt with in css. These are more 
> difficult to tame -- for example, in the startlines environment in the 
> example below, there is not enough information preserved to know if the 
> tagged item is supposed to be a single line or not.
> 
> (Tests using 2018-07-17 beta on Win64.)

You get this, with the numbers representing the paragraph number:

\starttext
% foo

\startparagraph
   \emIt{x 1} a 1
\stopparagraph

\startparagraph
   {\emIt x 2} a unset
\stopparagraph

\stoptext

of this:

\starttext
foo 1

\startparagraph
   \emIt{x 2} a 2
\stopparagraph

\startparagraph
   {\emIt x 3} a 1
\stopparagraph

\stoptext

so, when the par number is effectively set inside a group you end up 
with bad tags which will force that break because it's a different 
paragraph .. no way to intercept or chaneg that

The best I can do is issue a warning like

export > fuzzy paragraph: a (U+00061) [space] - (U+0002D) 2 (U+00032) 1 
(U+00031) 4 (U+00034) 7 (U+00037) 4 (U+00034) 8 (U+00038) 3 (U+00033) 6 
(U+00036) 4 (U+00034) 7 (U+00037)
backend         > x

so that one can fix the source.

> Has anyone dealt with this before? Is there a way to control the 
> insertion of the breaks?
> 
> MWE:
> 
>     \setupbackend     [export=yes]
>     \definehighlight  [emIt]
>                        [style=italic]
>     \starttext
>     \startparagraph
>        {\emIt Taa} aaaaaaaaaaa aa aaaaaaaaa aaaaaa aaa aaaaaaaa aa aaaaaaaaaa
>        aaaaaa. Taa aaaaaaaa aaaaa, aaaaa aaaaaaaa aa aaaaa aaaa aaaaa.
>     \stopparagraph
>     \startparagraph
>        Taa {\emIt aaaaaaaaaaa} aa aaaaaaaaa aaaaaa aaa aaaaaaaa aa aaaaaaaaaa
>        aaaaaa. Taa aaaaaaaa aaaaa, aaaaa aaaaaaaa aa aaaaa aaaa aaaaa.
>     \stopparagraph
>     \startlines
>        {\emIt Xyz} abcdefg
>        Xyz {\emIt abcdefg}
>     \stoplines
>     \stoptext
> 
> XML output snip:
> 
>     <document context="2018.07.17 17:25" date="2018-07-17T22:41:25+20:00" file="xxx" language="en" version="0.35" xmlns:m="http://www.w3.org/1998/Math/MathML">
>       <metadata>
>       </metadata>
>       <paragraph><highlight detail="emIt">Taa</highlight>  <break/>
>     aaaaaaaaaaa aa aaaaaaaaa aaaaaa aaa aaaaaaaa aa aaaaaaaaaa aaaaaa. Taa aaaaaaaa aaaaa, aaaaa aaaaaaaa aa aaaaa aaaa aaaaa.</paragraph>
>       <paragraph>Taa <highlight detail="emIt">aaaaaaaaaaa</highlight> aa aaaaaaaaa aaaaaa aaa aaaaaaaa aa aaaaaaaaaa aaaaaa. Taa aaaaaaaa aaaaa, aaaaa aaaaaaaa aa aaaaa aaaa aaaaa.</paragraph>
>       <lines detail="lines" chain="lines">
>        <line><highlight detail="emIt">Xyz</highlight>   <break/>
>     abcdefg</line>
>        <line>Xyz <highlight detail="emIt">abcdefg</highlight></line>
>       </lines>
>     </document>
> 
> Rendered in Firefox:
> 
> -- 
> Rik
> 
> 
> 
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> 
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