bug#20148: 24.4: function `bookmark-get-bookmark'

[Boruch Baum <boruch_baum@gmx.com>]

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Hello Drew. Apology for the inconvenience.

On 03/20/2015 01:04 AM, Drew Adams wrote:
>> Function `bookmark-get-bookmark' ...
>>
>> 1] tests for the existence of a bookmark by checking whether the input
>> string matches a cons cell. This casts a net much wider than desirable,
>> and might better be (assoc bookmark-name-or-record bookmark-alist).
> 
> See the actual code.
You're right. You could have just said 'line 336, not 335'.

> 
>> 2] returns only a string value on error, without passing nil back to the
>> calling function.
>>
>> My usage case is that I was scripting a function to find org-mode files
>> in a directory tree, and add them to a bookmark list if they aren't
>> already bookmarked according to my naming convention. Originally, I had
>> tried checking for the existence of a bookmark using a few of the
>> bookmark.el functions, such as bookmark-get-bookmark, but that looked
>> inconvenient because they returned string values on failure.
> 
> See the actual code.
> 
> The doc string neglects to mention the optional argument.  It should
> say something like this (taken from Bookmark+):
> 
>   Non-nil optional arg NOERROR means return nil if BOOKMARK is not a
>   valid bookmark.  If NOERROR is nil then raise an error in this case.
Missed that also.

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