My problem is occurring at arm's length inside an R Markdown workflow (.R or .Rmd --> .md --> .html). I guess there's something else we're doing that causes ?URL encoding? of the image link. This is the pandoc error I ultimately see at the conversion to html stage for the affected image links:
pandoc: Could not fetch fooabcdefghijklmnopqrstuvwxyz_files/figure-markdown_strict/unnamed-chunk-1-1.png%20%22fig:%22
fooabcdefghijklmnopqrstuvwxyz_files/figure-markdown_strict/unnamed-chunk-1-1.png "fig:": openBinaryFile: does not exist (No such file or directory)
Error: pandoc document conversion failed with error 67
On Friday, October 13, 2017 at 11:05:11 AM UTC-7, John MacFarlane wrote:
+++ Jennifer Bryan [Oct 13 17 10:57 ]:
> From my narrow view of the world, changing the CommonMark writer to
> match the rest here would be great!
Done.
> In my real problem, the presence of this "fig:" makes image links
> vulnerable to breakage via the insertion of a hard line break at the
> space before "fig:". Therefore I have to also manipulate text wrapping,
> i.e. set --wrap=none or --wrap=preserve to protect the links.
I don't get that. This is a perfectly valid image in
CommonMark:
> On Friday, October 13, 2017 at 10:31:12 AM UTC-7, John MacFarlane
> wrote:
>
> It's a kludge we use to distinguish images that should be
> treated as figures. You can turn off the extension
> entirely using
> -f markdown-implicit_figures
> I can also change the CommonMark writer so that the "fig:"
> prefix is removed, as it is in the other Markdown writers.
> +++ Jennifer Bryan [Oct 13 17 09:44 ]:
> > Why does the title "fig:" get inserted into this image link and,
> more
> > importantly, how can I prevent that?
> > $ echo '' | pandoc -f markdown -t commonmark
> > 
> > It appears to be fairly specific to CommonMark, i.e. it's not
> there for
> > other flavours of markdown.
> > $ echo '' | pandoc -f markdown -t markdown_github
> > 
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