Re: Inserting attributes into elements

["'William Lupton' via pandoc-discuss" <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>]

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sorry; i was wrong when i said that i thought that you can't add style
attributes (i should have checked)

of course the style attributes _are_ CSS, but i guess that this is ok for
you

what do you mean by 'rewriting' a tag?

On Tue, 13 Jun 2023 at 22:27, Bastien DUMONT <bastien.dumont-VwIFZPTo/vqsTnJN9+BGXg@public.gmane.org>
wrote:

> You call “insert” as if it were a method of “attr”, but attr is a
> key-value table. The correct way to add an attribute is:
>
> if (el.level == 2) then
>   local attr = el.attributes
>   attr.style = 'color: #112233;'
> end
>
>
> Le Tuesday 13 June 2023 à 05:19:14PM, H a écrit :
> > On June 13, 2023 5:16:32 PM EDT, H <agents-FcZObrvlYduBUy7/sJONFg@public.gmane.org> wrote:
> >
> >     On June 13, 2023 5:00:19 PM EDT, 'William Lupton' via pandoc-discuss
> >     <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> wrote:
> >
> >         As far as I know, you can't add 'style' attributes. But you can
> embed
> >         CSS via header-includes. You'll find an example of this if you
> search
> >         the manual for 'header-includes' (and you can use a filter to
> set the
> >         variable; I think Albert gave an example of how to do this a few
> weeks
> >         ago).
> >
> >         On Tue, 13 Jun 2023, 21:37 H, <[1]agents-FcZObrvlYduBUy7/sJONFg@public.gmane.org> wrote:
> >
> >             Continuing my quest to write a custom filter, I now ran into
> a need
> >             to add attributes to different types of tags as exemplified
> below:
> >
> >             - In header tags such as <h2>, I need to add "style=color:
> #112233;
> >             " so it becomes <h2 style="color: #112233;">.
> >
> >             - I analogously also need to add style information to
> <image> tags.
> >
> >             In my filter I tried:
> >
> >             style_h2 =
> >
> >             if (el.level == 2) then
> >                 local attr = el.attributes
> >                 attr.insert = style_h2
> >             end
> >
> >             but ended up with the below in my html output:
> >
> >             <h2
> >             data-insert=" style=&quot;text-transform: uppercase; color: #
> >             cc002b;&quot;">
> >
> >             Clearly not the correct way. Can I add the style information
> as
> >             above in a filter, in the pandoc function as I am going
> through my
> >             document block-by-block and modifying the document structure
> as
> >             needed? I already adding <div> with various style
> information as I
> >             iterate over the blocks and that works fine but now I need to
> >             modify existing tags.
> >
> >             I guess I could do it similarly to below but then it applies
> to all
> >             eg H2:
> >
> >             function Header(el)
> >                 --    remove header identifier for all levels
> >                 el.identifier = ''
> >
> >                 --    convert level 1 and 2 to upper case
> >                 if (el.level == 1) or (el.level == 2) then
> >                     return el:walk {
> >                         Str = function(el)
> >                             return pandoc.Str(text.upper(el.text))
> >                         end
> >                     }
> >                 else
> >                     return el
> >                 end
> >             end
> >
> >             How to do it on individual H2 in a filter?
> >
> >             Thanks.
> >
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> >
> >
> >     I need to stay away from css since the software the output is used
> in does
> >     not allow css info to be added.
> >
> >
> > Can I "rewrite" a tag in the filter?
> >
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