Re: No indent after horizontal rule

[BPJ <bpj-J3H7GcXPSITLoDKTGw+V6w@public.gmane.org>]

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Den ons 18 aug. 2021 09:13 <denis.maier-NSENcxR/0n0@public.gmane.org> skrev:

> Just a quick note: there’s also the the noindentafter package:
> https://www.ctan.org/pkg/noindentafter
>

It seems there is always a package which does what you want if only you
know what search term to use!



>
> Might be an idea to look into how this package implements this.
>
>
>
> Best
>
> Denis
>
>
>
> *Von:* pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> *Im
> Auftrag von *Ian Barnes
> *Gesendet:* Mittwoch, 18. August 2021 01:02
> *An:* pandoc-discuss <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
> *Betreff:* Re: No indent after horizontal rule
>
>
>
> Thanks for the response. Yes, I agree that's simpler and I tried something
> like that first too, but it failed on my first attempt. TeX just ignores
> the \noindent, because there's a blank line between it and the following
> paragraph in the generated TeX file. But I went back to it just now and it
> works if you add something like this
>
>
>
> \makeatletter
>
> \def\gobblepar{\@ifnextchar\par\@gobble\relax}
>
> \makeatother
>
>
>
> to your template or header-includes and then stick a \gobblepar after the
> \noindent. I'm a little concerned about what this does if the block after
> the hrule isn't a paragraph. Seems to result in extra vertical space.  But
> that seems kind-of a perverse thing for a document author to do.
>
>
>
> Interesting, thanks, that was fun...
>
> On Monday, 16 August 2021 at 6:52:21 pm UTC+2 John MacFarlane wrote:
>
>
> The most straightforward approach would probably just be
>
> fixhrule :: Block -> Block
> fixhrule HorizontalRule =
> RawBlock (Format "latex") "
> \\begin{center}\\rule{0.5\\linewidth}{0.5pt}\\end{center}\\noindent"
> fixhrule x = x
>
>
> Ian Barnes <ianbar...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > It's not quite the same situation as the various discussions about not
> > wanting indents after blockquotes, but similar enough that perhaps my
> > solution is interesting for others.
> >
> > I'm converting Markdown to PDF via LaTeX, with indent:true, and I'm
> using
> > horizontal rules as scene or section breaks. I found the indent on the
> > first paragraph after such a break ugly and wanted to do an automatic
> > \noindent after every horizontal rule. This turned out to be pretty easy
> > with a Haskell filter.
> >
> > As it's the first time I've written anything in Haskell, I thought I'd
> post
> > it here for feedback. Seems to me like maybe there's a more concise way
> to
> > do the same thing.
> >
> > Also this could obviously be adapted to actually remove the horizontal
> > rules and replace them with the Pandoc internal representation of a
> > vertical skip or blank line (whatever that is).
> >
> > import Data.Text
> > import Text.Pandoc.JSON
> >
> > main :: IO ()
> > main = toJSONFilter noIndentAfterHorizontalRule
> >
> > noIndentAfterHorizontalRule :: Pandoc -> Pandoc
> > noIndentAfterHorizontalRule doc =
> > let Pandoc meta blocks = doc
> > in Pandoc meta (mapAfterHorizontalRule noIndentifyPara blocks)
> >
> > mapAfterHorizontalRule :: (Block -> Block) -> [Block] -> [Block]
> > mapAfterHorizontalRule f (HorizontalRule : block : blocks) =
> > HorizontalRule : f block : mapAfterHorizontalRule f blocks
> > mapAfterHorizontalRule f (block : blocks) = block :
> mapAfterHorizontalRule
> > f blocks
> > mapAfterHorizontalRule f [] = []
> >
> > noIndentifyPara :: Block -> Block
> > noIndentifyPara (Para xs) =
> > Para (RawInline (Format (Data.Text.pack "tex")) (Data.Text.pack
> > "\\noindent ") : xs)
> > noIndentifyPara x = x
> >
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