reveal.js slides not rendering math anymore

reveal.js slides not rendering math anymore

[Louis Smith]

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Hello,

I'm having some real trouble with a workflow I'd been using to make 
reveal.js presentations with pandoc. For some reason all my computers have 
stopped being able to render math when I open the produced HTML in a 
browser. They also don't seem to be able to render any aspect of reveal 
(the page isn't styled at all, it's just raw text on one long white webpage 
with no slides) when I'm not pointing them at the reveal.js directory I 
have put on my machine locally.

I'm happy to provide more info, but I'm not sure what someone might need.

Right now, if I run 

pandoc -s -t revealjs -V revealjs-url=./reveal.js --mathjax demo.md -o 
demo.html

or

pandoc -s -t revealjs --mathjax demo.md -o demo.html

if I then open demo.html, I get a white webpage with unstyled text. This 
used to work, so I'm pretty confused.

Like I said, happy to provide more info as needed. Thanks.

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Re: reveal.js slides not rendering math anymore

[Louis Smith]

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I wasn't able to diagnose the issue, but I did find that I could fix the 
issue on one of my ubuntu machines by rolling back to version 3.9.2 of 
reveal. I found that my pandoc versions were different across the two 20.04 
machines (no idea why yet, but the one with 2.5 is Kubuntu, so maybe 
there's some affiliate package that's retarding the version?), and that the 
one that worked had a more recent version; 2.7.2. 2.5, for whatever reason, 
was still not working even with the rolled back reveal. 

Also, when I used conda to install a newer version of pandoc, 2.10 (for use 
with the computer that has pandoc 2.5 as a system utility installed with 
apt), it doesn't work with the old version of reveal, but it does work with 
the newest version of reveal (4.0.2). I know that this is a fairly 
haphazard recounting of version incompatibilities, but it would be nice if 
these were known breaking changes to record them somewhere. Building a 
presentation you want to update for the first time in a few months and 
discovering that your build commands no longer work is not really a nice 
way to find this out...

Anyway if someone else starts having issues with their reveal 
presentations, hopefully this will serve as a hint for how to try to fix 
them. Has anyone noticed that using the web url for reveal (IIRC 
https://revealjs.com) no longer works, and a local install of reveal is now 
necessary?

On Sunday, August 9, 2020 at 7:02:37 PM UTC-4, Louis Smith wrote:
>
> Hello,
>
> I'm having some real trouble with a workflow I'd been using to make 
> reveal.js presentations with pandoc. For some reason all my computers have 
> stopped being able to render math when I open the produced HTML in a 
> browser. They also don't seem to be able to render any aspect of reveal 
> (the page isn't styled at all, it's just raw text on one long white webpage 
> with no slides) when I'm not pointing them at the reveal.js directory I 
> have put on my machine locally.
>
> I'm happy to provide more info, but I'm not sure what someone might need.
>
> Right now, if I run 
>
> pandoc -s -t revealjs -V revealjs-url=./reveal.js --mathjax demo.md -o 
> demo.html
>
> or
>
> pandoc -s -t revealjs --mathjax demo.md -o demo.html
>
> if I then open demo.html, I get a white webpage with unstyled text. This 
> used to work, so I'm pretty confused.
>
> Like I said, happy to provide more info as needed. Thanks.
>

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Re: reveal.js slides not rendering math anymore

[John MacFarlane]

As noted in the release announcement for 2.10:

  * We now target version 4.x of reveal.js.  File locations have
    changed, so if you are using pandoc-produced reveal.js files
    with a local copy of reveal.js, you will need to upgrade.

It is a good idea to read these release announcements!

Louis Smith <louis.smith88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> I wasn't able to diagnose the issue, but I did find that I could fix the 
> issue on one of my ubuntu machines by rolling back to version 3.9.2 of 
> reveal. I found that my pandoc versions were different across the two 20.04 
> machines (no idea why yet, but the one with 2.5 is Kubuntu, so maybe 
> there's some affiliate package that's retarding the version?), and that the 
> one that worked had a more recent version; 2.7.2. 2.5, for whatever reason, 
> was still not working even with the rolled back reveal. 
>
> Also, when I used conda to install a newer version of pandoc, 2.10 (for use 
> with the computer that has pandoc 2.5 as a system utility installed with 
> apt), it doesn't work with the old version of reveal, but it does work with 
> the newest version of reveal (4.0.2). I know that this is a fairly 
> haphazard recounting of version incompatibilities, but it would be nice if 
> these were known breaking changes to record them somewhere. Building a 
> presentation you want to update for the first time in a few months and 
> discovering that your build commands no longer work is not really a nice 
> way to find this out...
>
> Anyway if someone else starts having issues with their reveal 
> presentations, hopefully this will serve as a hint for how to try to fix 
> them. Has anyone noticed that using the web url for reveal (IIRC 
> https://revealjs.com) no longer works, and a local install of reveal is now 
> necessary?
>
> On Sunday, August 9, 2020 at 7:02:37 PM UTC-4, Louis Smith wrote:
>>
>> Hello,
>>
>> I'm having some real trouble with a workflow I'd been using to make 
>> reveal.js presentations with pandoc. For some reason all my computers have 
>> stopped being able to render math when I open the produced HTML in a 
>> browser. They also don't seem to be able to render any aspect of reveal 
>> (the page isn't styled at all, it's just raw text on one long white webpage 
>> with no slides) when I'm not pointing them at the reveal.js directory I 
>> have put on my machine locally.
>>
>> I'm happy to provide more info, but I'm not sure what someone might need.
>>
>> Right now, if I run 
>>
>> pandoc -s -t revealjs -V revealjs-url=./reveal.js --mathjax demo.md -o 
>> demo.html
>>
>> or
>>
>> pandoc -s -t revealjs --mathjax demo.md -o demo.html
>>
>> if I then open demo.html, I get a white webpage with unstyled text. This 
>> used to work, so I'm pretty confused.
>>
>> Like I said, happy to provide more info as needed. Thanks.
>>
>
> -- 
> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
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Re: reveal.js slides not rendering math anymore

[Louis Smith]

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Indeed! it was hard for me to notice the incompatibility between reveal
versions and pandoc because of their heterogeneous sourcing. I got reveal
from their git, (a suggested install path) that automatically starts on the
most recent version of their master branch, which is incompatible with
pandocs older than 2.10 (based on your post)?

On Mon, Aug 10, 2020 at 2:40 PM John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> wrote:

>
> As noted in the release announcement for 2.10:
>
>   * We now target version 4.x of reveal.js.  File locations have
>     changed, so if you are using pandoc-produced reveal.js files
>     with a local copy of reveal.js, you will need to upgrade.
>
> It is a good idea to read these release announcements!
>
> Louis Smith <louis.smith88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > I wasn't able to diagnose the issue, but I did find that I could fix the
> > issue on one of my ubuntu machines by rolling back to version 3.9.2 of
> > reveal. I found that my pandoc versions were different across the two
> 20.04
> > machines (no idea why yet, but the one with 2.5 is Kubuntu, so maybe
> > there's some affiliate package that's retarding the version?), and that
> the
> > one that worked had a more recent version; 2.7.2. 2.5, for whatever
> reason,
> > was still not working even with the rolled back reveal.
> >
> > Also, when I used conda to install a newer version of pandoc, 2.10 (for
> use
> > with the computer that has pandoc 2.5 as a system utility installed with
> > apt), it doesn't work with the old version of reveal, but it does work
> with
> > the newest version of reveal (4.0.2). I know that this is a fairly
> > haphazard recounting of version incompatibilities, but it would be nice
> if
> > these were known breaking changes to record them somewhere. Building a
> > presentation you want to update for the first time in a few months and
> > discovering that your build commands no longer work is not really a nice
> > way to find this out...
> >
> > Anyway if someone else starts having issues with their reveal
> > presentations, hopefully this will serve as a hint for how to try to fix
> > them. Has anyone noticed that using the web url for reveal (IIRC
> > https://revealjs.com) no longer works, and a local install of reveal is
> now
> > necessary?
> >
> > On Sunday, August 9, 2020 at 7:02:37 PM UTC-4, Louis Smith wrote:
> >>
> >> Hello,
> >>
> >> I'm having some real trouble with a workflow I'd been using to make
> >> reveal.js presentations with pandoc. For some reason all my computers
> have
> >> stopped being able to render math when I open the produced HTML in a
> >> browser. They also don't seem to be able to render any aspect of reveal
> >> (the page isn't styled at all, it's just raw text on one long white
> webpage
> >> with no slides) when I'm not pointing them at the reveal.js directory I
> >> have put on my machine locally.
> >>
> >> I'm happy to provide more info, but I'm not sure what someone might
> need.
> >>
> >> Right now, if I run
> >>
> >> pandoc -s -t revealjs -V revealjs-url=./reveal.js --mathjax demo.md -o
> >> demo.html
> >>
> >> or
> >>
> >> pandoc -s -t revealjs --mathjax demo.md -o demo.html
> >>
> >> if I then open demo.html, I get a white webpage with unstyled text.
> This
> >> used to work, so I'm pretty confused.
> >>
> >> Like I said, happy to provide more info as needed. Thanks.
> >>
> >
> > --
> > You received this message because you are subscribed to the Google
> Groups "pandoc-discuss" group.
> > To unsubscribe from this group and stop receiving emails from it, send
> an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> > To view this discussion on the web visit
> https://groups.google.com/d/msgid/pandoc-discuss/960da69a-70f2-48d1-8899-95b616a7b87co%40googlegroups.com
> .
>

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