Re: Character escapes in asciidoc

[Jason Miller <jasnmilr-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Not sure how I missed that.  I've left a comment.  I still think escaping 
with passthrough only when special characters are encountered is the best 
solution, but will add to the discussion.  I'm locally using a patch now so 
I have a workaround for me that I'm happy to share if issue 2337 makes any 
progress.

On Thursday, April 29, 2021 at 10:07:27 AM UTC-7 John MacFarlane wrote:

>
> Have you seen https://github.com/jgm/pandoc/issues/2337
>
> The escaping "rules" seem a complete mess on asciidoc's side,
> unless things have been improved since I investigated.
>
> The "passthrough" method seems like too big a hammer.
> You avoid the escape problems but you'll get very
> ugly asciidoc.
>
> Anyway, it might make sense to comment on that issue.
>
> Jason Miller <jasn...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > ~, *, +, and _ must be escaped in some cases for asciidoc (and all cases 
> > when doubled). The rules for when they must be escaped is fairly 
> confusing 
> > and backslash-escaping is disallowed when either the escaping is 
> > non-mandatory or the characters are doubled.
> >
> > I'm willing to submit a patch, but wanted some thoughts on the approach 
> > first
> >
> > Simple test-case that shows the issue:
> >
> > ---
> > pandoc -f html -t asciidoctor /dev/stdin <<EOF
> > <p>*foo*</p>
> > <p><b>foo</b></p>
> > EOF
> > ---
> >
> > Will yield identical asciidoc (with strong tag) for both paragraphs and 
> > results in bolded text for both cases.
> >
> > I have found two ways to escape that work in both asciidoc and 
> asciidoctor 
> > (with examples using an asterisk):
> >
> > 1. Define an attribute for each character that needs to be escaped, and 
> use 
> > that; the definitions can go anywhere in the document before being used, 
> > with the header being typical:
> >
> > ---
> > :star: *
> >
> > {star}
> > ---
> >
> > 2. Use a passthrough:
> >
> > ---
> > pass:specialcharacters[*]
> > ---
> >
> > #2 lets you escape any arbitrary strings, so escapeString could just 
> render 
> > any string with special characters as:
> >
> > pass:specialcharacters[this is some text that has * special + characters]
> >
> > I'm leaning towards implementing #2 as it's easier to implement and #1 
> > requires rendering the header correctly. #1 probably is closer to how I 
> > would hand-write these escapes though.
> >
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