[PATCH] emacs: Fix applying stickiness to the :notmuch-part property

Tomi Ollila tomi.ollila at iki.fi
Mon Jun 3 10:21:20 PDT 2013


On Mon, Jun 03 2013, Austin Clements <amdragon at MIT.EDU> wrote:

> Previously, we simply called pushnew to add :notmuch-part to the
> front-sticky and rear-nonsticky text property lists.  This works if
> these are nil or lists, but they can also have the value t, meaning
> that all properties are front-sticky/rear-nonsticky.  In this case,
> pushnew will signal an error because t is not a list.  We never set
> these properties to t ourselves, but since we apply these property
> changes over arbitrary renderer output, we have to deal with this
> possibility.
> ---

LGTM (took a while to understand :D).

Tomi


>  emacs/notmuch-show.el |   13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
> index 5771950..83bb9ad 100644
> --- a/emacs/notmuch-show.el
> +++ b/emacs/notmuch-show.el
> @@ -846,11 +846,18 @@ If HIDE is non-nil then initially hide this part."
>      (notmuch-map-text-property beg (point) :notmuch-part
>  			       (lambda (v) (or v part)))
>      ;; Make :notmuch-part front sticky and rear non-sticky so it stays
> -    ;; applied to the beginning of each line when we indent the message.
> +    ;; applied to the beginning of each line when we indent the
> +    ;; message.  Since we're operating on arbitrary renderer output,
> +    ;; watch out for sticky specs of t, which means all properties are
> +    ;; front-sticky/rear-nonsticky.
>      (notmuch-map-text-property beg (point) 'front-sticky
> -			       (lambda (v) (pushnew :notmuch-part v)))
> +			       (lambda (v) (if (listp v)
> +					       (pushnew :notmuch-part v)
> +					     v)))
>      (notmuch-map-text-property beg (point) 'rear-nonsticky
> -			       (lambda (v) (pushnew :notmuch-part v)))))
> +			       (lambda (v) (if (listp v)
> +					       (pushnew :notmuch-part v)
> +					     v)))))
>  
>  (defun notmuch-show-insert-body (msg body depth)
>    "Insert the body BODY at depth DEPTH in the current thread."
> -- 
> 1.7.10.4
>
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