Re: How to enclose reference list entries in a latex environment?

[Nikolay Yakimov <g.livid-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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import Text.Pandoc.JSON

main :: IO ()
main = toJSONFilter addHangPara

addHangPara :: Maybe Format -> Block -> Block
addHangPara (Just (Format "latex")) (Div ("",["references"],[]) (h@(Header
_ _ _):(Para ils):rest)) =
  Div ("",["references"],[]) $ h : (Para (RawInline (Format "latex")
"\\begin{hangpara}\n" : ils)) : rest ++ [RawBlock (Format "latex")
"\\end{hangpara}"]
addHangPara _ x = x

That would add \begin{hangpara} at the beginning of first paragraph
following reference section header. But honestly, at this point, it's
easier to use sed. Not sure where did you get \hyperdef{}{ref-item2}{} --
to my knowledge, pandoc-citeproc does not produce this.

сб, 28 марта 2015 г. в 1:23, <nickbart1980-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>:

> Ok, John's latest version works after replacing `addHangPara (Format
> "latex")` by `addHangPara (Just (Format "latex"))`. Nick Yakimov’s code
> worked too when I tried that again. Thank you both!
>
> Unfortunately, this wasn't all. It turns out that the hangparas
> environment from hanging.sty does not work well and frequently leads to
> underfull pages in the bibliography (sometimes just half full).
>
> A better solution for a hangparas environment requires the scrartcl
> package (which is nice anyway) or at least the scrextend package, and looks
> like this:
>
> \newenvironment{hangparas}[1][2em]{%
>   \addmargin[#1]{0pt}\setlength{\parindent}{-#1}\hspace*{-#1}%
>   \ignorespaces
> }{%
>   \endaddmargin
> }
>
> This, however, leads to extra vertical space in the pdf output between the
> section header and the first entry unless the empty line between
> \begin{hangparas} and the first reference list entry is removed. There's
> also a horizontal space before the first entry; this can be fixed by
> inserting a `%` at the end of the `\hyperdef{}{ref-item2}{}` line
> (inserting `%` signs at the ends of lines is a routine precaution in latex
> anyway).
>
> This means that the beginning of a References section should look like
> this:
>
> ~~~~
>
> \section*{References}\label{references}
> \addcontentsline{toc}{section}{References}
>
> \begin{hangparas}
> \hyperdef{}{ref-item2}{}%
>
> Doe, John. ``Article.'' \emph{Journal of Generic Studies} 6, no. 4 (2006):
> 33--34.
>
> ~~~~
>
> So, (1) can the filter be modified to remove the empty line after
> `\begin{hangparas}`?
>
> And (2), can the latex writer be patched to insert a `%` after each
> `\hyperdef{}{ref-...}{}%` line?
>
>
>
> On Friday, March 27, 2015 at 6:28:07 PM UTC, John MacFarlane wrote:
>>
>> +++ John MacFarlane [Mar 27 15 11:20 ]:
>>
>> Sorry again, I put that in the wrong place.  Fix to the fix:
>>
>>     addHangPara :: Maybe Format -> Block -> Block
>>     addHangPara (Format "latex") (Div ("",["references"],[]) (h@(Header
>> _ _ _) : blocks)) =
>>       Div ("",["references"],[]) ( [h, latex "\\begin{hangparas}"] ++
>>         blocks ++ [latex "\\end{hangparas}"] )
>>       where latex = RawBlock (Format "latex")
>>     addHangPara _ x = x
>>
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