Re: [RFC] Quoting property names in tag/property matches [Was: [BUG?] Matching tags: & operator no more implicit between tags and special property]

[Ihor Radchenko <yantar92@posteo.net>]

Jens Schmidt <jschmidt4gnu@vodafonemail.de> writes:

>> When "TAG1-TAG2" is an actual tag name with dash, we may allow escaping.
>
> But I'd like to clarify that.  From the Org syntax
>
>   https://orgmode.org/worg/org-syntax.html#Headings
>
> I understood that tag names cannot contain minus characters,
> and `org-tag-re' does not match any, either.  So we are talking
> about property names only, right?

You are right.

> Then the question is what quoting scheme to use for property
> names.  The previous one used before my commit f689eb4
>
>   (A) "\\-" => "-"
>
> never has been documented and never has been working properly,
> since the *matching* of these was done on *prop* names, but
> the *unescaping* on *tag* names.  So we are basically free to
> come up with something new.
>
> Some obvious choice would be a simpler single backslash
>
>   (B) "\-" => "-"

I prefer (B). And we will need to allow escaping of the "\" itself. Like
\\.

-- 
Ihor Radchenko // yantar92,
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