AW: No indent after horizontal rule

[<denis.maier-NSENcxR/0n0@public.gmane.org>]

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That mostly likely means that the noindentafter package is outdated. I’ve had the same error. It worked again after updating this package.

Von: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> Im Auftrag von Ian Barnes
Gesendet: Sonntag, 22. August 2021 10:40
An: pandoc-discuss <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Betreff: Re: No indent after horizontal rule

I was curious, so I tried this. Added

  header-includes: |
    \usepackage{noindentafter}
    \NoIndentAfterEnv{center}

to my defaults.yml. Didn't work... Checked what's going on with --verbose, and I see this:

Package noindentafter Warning: Patching `\end' failed!
(noindentafter)                `\NoIndentAfter...' commands won't work.

I'm not enough of a TeX wizard to take that any further. Still, we have two working solutions, so I'm pretty happy.

On Wednesday, 18 August 2021 at 9:29:13 am UTC+2 Ian Barnes wrote:
@Denis, thanks, cool, I'll have a look.

Unrelated question. When I compiled my dozen lines or so of Haskell filter to an executable, the result was 20MB. Is that normal?
On Wednesday, 18 August 2021 at 9:12:39 am UTC+2 denis...-NSENcxR/0n0@public.gmane.org wrote:
Just a quick note: there’s also the the noindentafter package: https://www.ctan.org/pkg/noindentafter

Might be an idea to look into how this package implements this.

Best
Denis

Von: pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org<mailto:pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> <pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org<mailto:pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>> Im Auftrag von Ian Barnes
Gesendet: Mittwoch, 18. August 2021 01:02
An: pandoc-discuss <pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org<mailto:pandoc-...@googlegroups.com>>
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<file://begin%7bcenter%7d/rule%7b0.5/linewidth%7d%7b0.5pt%7d/end%7bcenter%7d/noindent>"
fixhrule x = x


Ian Barnes <ianbar...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org<mailto: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 <file://noindent%20> ") : xs)
> noIndentifyPara x = x
>
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