Re: table.el downcase HTML tags

[Kevin Rodgers <ihs_4664@yahoo.com>]

Lennart Borgman wrote:
> Mathias Dahl wrote:
>>> This has been requested for many times that HTML tags that table.el
>>> generates to be downcased to be compatible with XHTML standard.  If no
>>> one objects could someone check the following change into the
>>> repository.  Thanks.
>>>
>>> <             (format "<TABLE %s>\n" table-html-table-attribute)
>>
>> Why not making it configurable? I don't care about the case in this
>> case (haha!) but I am sure some do.
> I do not know of any case where uppercase tags is useful. Are there 
> really any such cases?

No, because HTML is a case-insensitive SGML application:

See http://www.w3.org/TR/html4/

	HTML 4 is an SGML application conforming to International
	Standard ISO 8879 -- Standard Generalized Markup Language
	[ISO8879].

See http://www.w3.org/TR/html4/intro/sgmltut.html#h-3.2.1

	Element names are always case-insensitive.

See http://www.w3.org/TR/html4/sgml/sgmldecl.html

	                  NAMECASE GENERAL YES
	                           ENTITY  NO

Note however, that clause 9.3 of ISO 8879 states that

	The upper-case form of each character in a name, name token,
	number, or number token, as specified by the "NAMECASE"
	parameter of the SGML declaration, is substituted for the
	character actually entered.

so the uppercase names are actually canonical in HTML, whereas the
lowercase names are mandatory in XHTML which is a (case-sensitive)
XML application.

-- 
Kevin