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Re: [PATCH] Fix verbatim block fontification to end blocks on headlines


From: Tom Gillespie
Subject: Re: [PATCH] Fix verbatim block fontification to end blocks on headlines
Date: Thu, 12 Dec 2019 02:27:00 -0800

Thank you very much for the feedback. I will make the additional fixes
against maint along with the changes for clarity and send them along
tomorrow. Additional replies in line. Best,
Tom

On Thu, Dec 12, 2019 at 12:40 AM Nicolas Goaziou <address@hidden> wrote:
>
> Hello,
>
> Tom Gillespie <address@hidden> writes:
>
> > This patch is a change to how org fontifies verbatim source blocks re: [1].
> > Hopefully it answers Nicolas's question from that thread. Best!
>
> OK. Now I see what you meant. Thank you.
>
> >         (when (re-search-forward
> > -              (concat "^[ \t]*#\\+end" (match-string 4) "\\>.*")
> > +              (concat "\\(^\\*\\|^[ \t]*#\\+end" (match-string 4) 
> > "\\>.*\\)")
>
> I haven't tested it, but I think this will not produce the expected
> result:
>
>   #+begin_example
>   *bold*
>   #+end_example
>
> I.e., headlines are asterisks at column 0 /followed by a space/.

Yep, you are exactly right.

>
> >                nil t)  ;; on purpose, we look further than LIMIT
> >           ;; We do have a matching #+end line
> >           (setq beg-of-endline (match-beginning 0)
> > @@ -5326,10 +5326,11 @@ by a #."
> >           (add-text-properties
> >            beg (if whole-blockline bol-after-beginline end-of-beginline)
> >            '(face org-block-begin-line))
> > -         (add-text-properties
> > -          beg-of-endline
> > -          (min (point-max) (if whole-blockline (min (point-max) (1+ 
> > end-of-endline)) end-of-endline))
> > -          '(face org-block-end-line))
> > +         (when (not (string= (match-string 1) "*"))
>
> `when' + `not' -> `unless'
>
> > +           (add-text-properties
> > +            beg-of-endline
> > +            (min (point-max) (if whole-blockline (min (point-max) (1+ 
> > end-of-endline)) end-of-endline))
> > +            '(face org-block-end-line)))
>
> Arguably, I think
>
>   (min (point-max) (1+ end-of-endline))
>
> could be replaced, for clarity, by
>
>   (let (... (beg-of-next-line (line-beginning-position 2)) ...)
>    ...
>    (add-text-properties
>     beg-of-endline
>     (min (point-max) (if whole-blockline beg-of-next-line end-of-endline))))

Probably right. I will review since I didn't look carefully at that
code, but it is a good opportunity to make some improvements while we
are looking at it.

>
> I'm also not convinced that the (min (point-max) ...) left is necessary.
>
> Could you send an updated patch (on top of maint)?
>
> Regards,
>
> --
> Nicolas Goaziou



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