supporting dinkus in markdown to epub and pdf

supporting dinkus in markdown to epub and pdf

[Jeff Mcneill]

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In markdown, I markup a dinkus as such:

<p class="dinkus">&lowast; &lowast; &lowast;</p>

The class simply centers the text. 

However, for pdf output, I have to mark up in latex as:

\begin{center}
* * *
\end{center}

This is not a true dinkus, as it uses an asterisk rather than a &lowast;. 

I've got two issues here:

1. How do I make latex (and pdflatex) suppor the dinkus html or unicode 
entity?

2. Does anyone know a clever way of marking up the pandoc markdown so that 
I can use a single source to properly generate both epub and pdf dinkus?

Note that if I leave the latex text in, the dinkus is not displayed in 
epub, and if I leave only the markdown in, then the literal `<p 
class="dinkus">&lowast; &lowast; &lowast;</p>` is displayed in pdf.

Any thoughts are deeply appreciated.

Note: because of some issues I am experiencing with xelatex and images in 
pdf (they don't display), I cannot use that to solve any of these issues.

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Re: supporting dinkus in markdown to epub and pdf

[Václav Haisman]

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On 23. 10. 19 6:30, Jeff Mcneill wrote:
> In markdown, I markup a dinkus as such:
>
> <p class="dinkus">&lowast; &lowast; &lowast;</p>

What version of Pandoc are you using? If I test with |echo '<p
class="dinkus">&lowast; &lowast; &lowast;</p>' | pandoc -f html -t latex
| od -t x1| I can see the UTF-8 characters U+2217 make it through into
the LaTeX output.

​


>
> The class simply centers the text. 
>
> However, for pdf output, I have to mark up in latex as:
>
> \begin{center}
> * * *
> \end{center}
>
> This is not a true dinkus, as it uses an asterisk rather than a &lowast;. 
>
> I've got two issues here:
>
> 1. How do I make latex (and pdflatex) suppor the dinkus html or
> unicode entity?
>
> 2. Does anyone know a clever way of marking up the pandoc markdown so
> that I can use a single source to properly generate both epub and pdf
> dinkus?
>
> Note that if I leave the latex text in, the dinkus is not displayed in
> epub, and if I leave only the markdown in, then the literal `<p
> class="dinkus">&lowast; &lowast; &lowast;</p>` is displayed in pdf.
>
> Any thoughts are deeply appreciated.
>
> Note: because of some issues I am experiencing with xelatex and images
> in pdf (they don't display), I cannot use that to solve any of these
> issues.
> -- 
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Re: supporting dinkus in markdown to epub and pdf

[Jeff Mcneill]

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I get an error when running md to pdf as follows (using Pandoc 2.8 a 
nightly build from 12-Oct-2019):

Error producing PDF.
! Package inputenc Error: Unicode character ∗ (U+2217)
(inputenc)                not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.481 ∗

Try running pandoc with --pdf-engine=xelatex.


When I runt the test code you provide above, I get:

0000000 e2 88 97 20 e2 88 97 20 e2 88 97 0a
0000014


I can't do the suggested using xelatex because then my images don't show up 
in pdf (but they do without xelatex).

Note, when using xelatex, I do see the &lowast;, but it is not centered, 
hence the need for latex markup for centering (unless there is a different 
way to do this).

Sincerely,
Jeff Mcneill

On Wednesday, October 23, 2019 at 1:30:10 PM UTC+7, Václav Haisman wrote:
>
> On 23. 10. 19 6:30, Jeff Mcneill wrote:
>
> In markdown, I markup a dinkus as such: 
>
> <p class="dinkus">&lowast; &lowast; &lowast;</p>
>
> What version of Pandoc are you using? If I test with echo '<p 
> class="dinkus">&lowast; &lowast; &lowast;</p>' | pandoc -f html -t latex | 
> od -t x1 I can see the UTF-8 characters U+2217 make it through into the 
> LaTeX output. 
> ​
>

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Re: supporting dinkus in markdown to epub and pdf

[Václav Haisman]

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On 24. 10. 19 5:10, Jeff Mcneill wrote:
> I get an error when running md to pdf as follows (using Pandoc 2.8 a
> nightly build from 12-Oct-2019):
>
>     Error producing PDF.
>     ! Package inputenc Error: Unicode character ∗ (U+2217)
>     (inputenc)                not set up for use with LaTeX.
>
>     See the inputenc package documentation for explanation.
>     Type  H <return>  for immediate help.
>      ...                                              
>                                                       
>     l.481 ∗
>
>     Try running pandoc with --pdf-engine=xelatex.
>
I suggest you add the following to your LaTeX preamble:

|\usepackage{newunicodechar} \newunicodechar{∗}{\textasteriskcentered} |

and then use the raw character in your document

|\begin{center} ∗ ∗ ∗ \end{center} |

​


>
> When I runt the test code you provide above, I get:
>
>     0000000 e2 88 97 20 e2 88 97 20 e2 88 97 0a
>     0000014
>
>
> I can't do the suggested using xelatex because then my images don't
> show up in pdf (but they do without xelatex).
>
> Note, when using xelatex, I do see the &lowast;, but it is not
> centered, hence the need for latex markup for centering (unless there
> is a different way to do this).
>
> Sincerely,
> Jeff Mcneill
>
> On Wednesday, October 23, 2019 at 1:30:10 PM UTC+7, Václav Haisman wrote:
>
>     On 23. 10. 19 6:30, Jeff Mcneill wrote:
>>     In markdown, I markup a dinkus as such:
>>
>>     <p class="dinkus">&lowast; &lowast; &lowast;</p>
>
>     What version of Pandoc are you using? If I test with |echo '<p
>     class="dinkus">&lowast; &lowast; &lowast;</p>' | pandoc -f html -t
>     latex | od -t x1| I can see the UTF-8 characters U+2217 make it
>     through into the LaTeX output.
>
>     ​
>
> -- 
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Re: supporting dinkus in markdown to epub and pdf

[Jeff Mcneill]

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>
> I suggest you add the following to your LaTeX preamble:
>
> \usepackage{newunicodechar}
> \newunicodechar{∗}{\textasteriskcentered}
>
> and then use the raw character in your document
>
> \begin{center}
> ∗ ∗ ∗
> \end{center}
>
> ​
>
>
> -- 
> VH
>
>
This indeed fixes my issue with latex in terms of producing the correct 
dinkus display (*) when md->pdf, however this still is discarded by 
pandoc when producing an md->epub. The lines are simply removed (there is 
no dinkus and no additional space added between the separated sections). 

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Re: supporting dinkus in markdown to epub and pdf

[Václav Haisman]

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On 26. 10. 19 9:09, Jeff Mcneill wrote:
>
>     I suggest you add the following to your LaTeX preamble:
>
>     |\usepackage{newunicodechar}
>     \newunicodechar{∗}{\textasteriskcentered} |
>
>     and then use the raw character in your document
>
>     |\begin{center} ∗ ∗ ∗ \end{center} |
>
>     ​
>
>
>     -- 
>     VH
>
>
> This indeed fixes my issue with latex in terms of producing the
> correct dinkus display (*) when md->pdf, however this still is
> discarded by pandoc when producing an md->epub. The lines are simply
> removed (there is no dinkus and no additional space added between the
> separated sections). -- 

You will have to write a filter that will implement the dingus
differently for each output format. Pandoc is not magical, it cannot
translate everything.

One more comment about the LaTeX dingus: I have found one more
sophisticated implementation, see
https://tex.stackexchange.com/a/101240/28495.

​



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Re: supporting dinkus in markdown to epub and pdf

[Jeff Mcneill]

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Aha, I've found a fix, referenced at: 
https://stackoverflow.com/questions/48083724/pandoc-markdown-ignore-text-in-pdf-but-include-in-html-updated

Here is what I put, and the epub ignores the latex content and the latex 
ignores the epub (html) content. Magical indeed.

`<p class="dinkus">&midast; &midast; &midast;</p>`{=html}
> \begin{center} ∗ ∗ ∗ \end{center}


Thanks for your help. Your suggestions are very useful. 
--Jeff Mcneill


On Saturday, October 26, 2019 at 2:24:17 PM UTC+7, Václav Haisman wrote:

> On 26. 10. 19 9:09, Jeff Mcneill wrote:
>
> I suggest you add the following to your LaTeX preamble:
>>
>> \usepackage{newunicodechar}
>> \newunicodechar{∗}{\textasteriskcentered}
>>
>> and then use the raw character in your document
>>
>> \begin{center}
>> ∗ ∗ ∗
>> \end{center}
>>
>> ​
>>
>>
>> -- 
>> VH
>>
>>
> This indeed fixes my issue with latex in terms of producing the correct 
> dinkus display (&midast;) when md->pdf, however this still is discarded by 
> pandoc when producing an md->epub. The lines are simply removed (there is 
> no dinkus and no additional space added between the separated sections). -- 
>
>
> You will have to write a filter that will implement the dingus differently 
> for each output format. Pandoc is not magical, it cannot translate 
> everything.
>
> One more comment about the LaTeX dingus: I have found one more 
> sophisticated implementation, see 
> https://tex.stackexchange.com/a/101240/28495.
> ​
>
>
>
> -- 
> VH
>
>

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Re: supporting dinkus in markdown to epub and pdf

[Jeff Mcneill]

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P.S., the ∗ is really what I want, so final format is as follows:

`<p class="dinkus"> &lowast; &lowast; &lowast; </p>`{=html}
`\begin{center} ∗ ∗ ∗ \end{center}`{=latex}

On Saturday, October 26, 2019 at 3:06:27 PM UTC+7, Jeff Mcneill wrote:
>
> Aha, I've found a fix, referenced at: 
> https://stackoverflow.com/questions/48083724/pandoc-markdown-ignore-text-in-pdf-but-include-in-html-updated
>
> Here is what I put, and the epub ignores the latex content and the latex 
> ignores the epub (html) content. Magical indeed.
>
> `<p class="dinkus">&midast; &midast; &midast;</p>`{=html}
>> \begin{center} ∗ ∗ ∗ \end{center}
>
>
> Thanks for your help. Your suggestions are very useful. 
> --Jeff Mcneill
>
>
> On Saturday, October 26, 2019 at 2:24:17 PM UTC+7, Václav Haisman wrote:
>
>> On 26. 10. 19 9:09, Jeff Mcneill wrote:
>>
>> I suggest you add the following to your LaTeX preamble:
>>>
>>> \usepackage{newunicodechar}
>>> \newunicodechar{∗}{\textasteriskcentered}
>>>
>>> and then use the raw character in your document
>>>
>>> \begin{center}
>>> ∗ ∗ ∗
>>> \end{center}
>>>
>>> ​
>>>
>>>
>>> -- 
>>> VH
>>>
>>>
>> This indeed fixes my issue with latex in terms of producing the correct 
>> dinkus display (&midast;) when md->pdf, however this still is discarded by 
>> pandoc when producing an md->epub. The lines are simply removed (there is 
>> no dinkus and no additional space added between the separated sections). -- 
>>
>>
>> You will have to write a filter that will implement the dingus 
>> differently for each output format. Pandoc is not magical, it cannot 
>> translate everything.
>>
>> One more comment about the LaTeX dingus: I have found one more 
>> sophisticated implementation, see 
>> https://tex.stackexchange.com/a/101240/28495.
>> ​
>>
>>
>>
>> -- 
>> VH
>>
>>

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Re: supporting dinkus in markdown to epub and pdf

[Václav Haisman]

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On 26. 10. 19 10:06, Jeff Mcneill wrote:
>
>     Aha, I've found a fix, referenced
>     at: https://stackoverflow.com/questions/48083724/pandoc-markdown-ignore-text-in-pdf-but-include-in-html-updated
>
>
>     Here is what I put, and the epub ignores the latex content and the
>     latex ignores the epub (html) content. Magical indeed.
>
>         `<p class="dinkus">&midast; &midast; &midast;</p>`{=html}
>         \begin{center} ∗ ∗ ∗ \end{center}
>
I wasn't actually aware of this syntax. Magical indeed.


>
> Thanks for your help. Your suggestions are very useful.
> --Jeff Mcneill
>
>
> On Saturday, October 26, 2019 at 2:24:17 PM UTC+7, Václav Haisman wrote:
>
>     On 26. 10. 19 9:09, Jeff Mcneill wrote:
>>
>>         I suggest you add the following to your LaTeX preamble:
>>
>>         |\usepackage{newunicodechar}
>>         \newunicodechar{∗}{\textasteriskcentered} |
>>
>>         and then use the raw character in your document
>>
>>         |\begin{center} ∗ ∗ ∗ \end{center} |
>>
>>         ​
>>
>>
>>         -- 
>>         VH
>>
>>
>>     This indeed fixes my issue with latex in terms of producing the
>>     correct dinkus display (&midast;) when md->pdf, however this
>>     still is discarded by pandoc when producing an md->epub. The
>>     lines are simply removed (there is no dinkus and no additional
>>     space added between the separated sections). -- 
>
>     You will have to write a filter that will implement the dingus
>     differently for each output format. Pandoc is not magical, it
>     cannot translate everything.
>
>     One more comment about the LaTeX dingus: I have found one more
>     sophisticated implementation, see
>     https://tex.stackexchange.com/a/101240/28495
>     <https://tex.stackexchange.com/a/101240/28495>.
>
>     ​
>
>
>
>     -- 
>     VH
>
> -- 
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