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bug#23343: 25.0.93; [PATCH] URI schemes are not regexp-quoted for `goto-

From: Lars Magne Ingebrigtsen
Subject: bug#23343: 25.0.93; [PATCH] URI schemes are not regexp-quoted for `goto-address-url-regexp'
Date: Sun, 24 Apr 2016 13:36:47 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux)

Phil Sainty <address@hidden> writes:

> I've made docstring changes to point out that it's only useful to
> set goto-address-uri-schemes-ignored and goto-address-uri-schemes
> prior to loading the library.
> I'm not sure if there's any policy about such things, but it seemed
> like it would be quite a lot more work to get around that. I imagine
> the :set ability of defcustom would make it possible to have changes
> to those variables dynamically update goto-address-url-regexp as well;
> but in doing that you'd need to take care not to clobber values which
> had themselves been customized also, and it all seemed like a lot of
> added complexity for little benefit.

Having variable defaults depend on each other can be awkward, especially
when it's the "first" variable that users will realistically be


> +(defvar goto-address-uri-schemes-ignored
> +  ;; By default we exclude `mailto:' (email addresses are matched
> +  ;; by `goto-address-mail-regexp') and also `data:', as it is not
> +  ;; terribly useful to follow those URIs, and leaving them causes
> +  ;; `use Data::Dumper;' to be fontified oddly in Perl files.
> +  '("mailto:"; "data:")

Which is this one.  But I don't really see how to fix that without
having a different interface here (i.e., getting rid of
goto-address-url-regexp), so perhaps it's OK...


> +(defvar goto-address-uri-schemes
> +  ;; We use `thing-at-point-uri-schemes', with a few exclusions,
> +  ;; as listed in `goto-address-uri-schemes-ignored'.
> +  (seq-reduce (lambda (accum elt) (delete elt accum))
> +              goto-address-uri-schemes-ignored
> +              (copy-sequence thing-at-point-uri-schemes))

I don't much value to this "intermediate" variable.  It just makes
things even more complicated to work with, I think.

(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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