Rails spinoffs - Jul 2007 - Selectors API - problems with closing square bracket as an attribute value

I''ve got problem with the Selectors API.
I want to find an element:

<input type="hidden" name="a_b[c]">

All I know about it, is that this element lays inside some div with
id="container", and it is not the only one hidden-type input in it.

So I''ve tried to use the following call:
> $$(''#container
input[type=hidden][name="a_b[c]"]'')
Unfortunately, it doesn''t work - finds nothing.

I think, the problem may be, because of the square brackets sings used
in name'' value. I''ve tried to escape them using backslash - it
doesn''t
work.

In further investigations I''ve managed to find it using the following
call:
> $$(''#container
input[type=hidden][name^="a_b[c"]'')
This one works as expected. But what if there will be another input
with name="a_b[cd]"? I don''t know what will be the names of
inputs,
because it''s list is generated by server-side script.

I am able to workaround this, i.e. finding all the inputs of type
hidden, then iterate through them and find the one with the id I''m
looking for (using Enumerable.find()).

But what am I curious about is where the bug lies:
Is there some way I can escape the closing square bracket sign?
Is it some Prototype''s selectors'' engine bug? Bad parsing
rules?
Maybe some browser bug?

I am using Internet Explorer 6 under Win XP pro.

Thanks in advance, for any replies :-)


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I know the square bracket notation is used in PHP, but it''s  
technically against spec in HTML 4+.
http://www.w3.org/TR/html4/types.html#h-6.2

The trouble you''re encountering is likely something the core  
developers can work around, I just thought I''d point it out.


TAG

On Jul 11, 2007, at 5:37 PM, DK wrote:
> I''ve got problem with the Selectors API.
> I want to find an element:
>
> <input type="hidden" name="a_b[c]">
>
> All I know about it, is that this element lays inside some div with
> id="container", and it is not the only one hidden-type input in
it.
>
> So I''ve tried to use the following call:
>> $$(''#container
input[type=hidden][name="a_b[c]"]'')
> Unfortunately, it doesn''t work - finds nothing.

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HTML4 specification page, which You have linked doesn''t refer to the
"id" an"name" attributes, but it talks about SGML data types
"ID" and
"NAME". And allowed content for "name" is "CDATA"
all over in HTML4
specs. (strange: ID is of "NAME" SGML type in html4 :-) ).
Moreover...
I use one of XHTML1.0 doctypes and the "NAME" type isn''t even
used
anywhere in it''s DTDs.
The "name" attribute is of type "CDATA" too - as in html4
(btw. the
type of attribute "name" of "A" element is different - it is
"NMTOKEN").

But, despite of that all, I don''t think it''s the reason, why
it
doesn''t work. If nobody will answer me here, then I will try to write
at "Core" list.

Nevertheless, thanks for reply.

DK


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