Re: pandoc context template forces linkstyle, linkcolor, and linkcontrastcolor off by default

[John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org>]

The current behavior is consistent with how things work with
latex.  Rather than using the defaults, we specify black
unmarked links by default.  The reason is that this is best
for documents that are to be printed.

I can see arguments on both sides, but the current behavior
is consistent across formats.

"T. Kurt Bond" <tkurtbond-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> I'm always surprised when I produce a PDF with pandoc via context output
> and the hyperlinks are indistinguishable from normal text so I can't tell
> where they are.  It turns out that the template for context output
> unconditionally sets linkstyle, linkcolor, and contrastcolor to the values
> of the variables $linkstyle$, $linkcolor$, and $linkcontrastcolor$ *even if
> the user hasn't specified them.*  This forces those all off.
>
> Here's the code from pandoc -D context (pandoc version 2.14.0.1):
>
> % Enable hyperlinks
> \setupinteraction
>   [state=start,
> $if(title)$
>   title={$title$},
> $endif$
> $if(subtitle)$
>   subtitle={$subtitle$},
> $endif$
> $if(author)$
>   author={$for(author)$$author$$sep$; $endfor$},
> $endif$
> $if(keywords)$
>   keyword={$for(keywords)$$keywords$$sep$; $endfor$},
> $endif$
>   style=$linkstyle$,
>   color=$linkcolor$,
>   contrastcolor=$linkcontrastcolor$]
>
> I think the last three lines should be
>
> $if(linkstyle)$
>   style=$linkstyle$,
> $endif$
> $if(linkcolor)$
>   color=$linkcolor$,
> $endif$
> $if(linkcontrastcolor)$
>   contrastcolor=$linkcontrastcolor$
> $endif$
>   ]
>
> instead, so the style, color, and contrast color are only set if the user
> specifies those variables.  This way the document gets the default ConTeXt
> style, color, and contrast color.
>
> -- 
> T. Kurt Bond, tkurtbond-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, https://tkurtbond.github.io
>
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