[TYPO3-core] FYI: Fixed bug #15326: htmlArea RTE: W3C Markup Validation issues

[Stanislas Rolland]

Hi Jigal,
>
> According to W3C:
> ID and NAME tokens must begin with a letter ([A-Za-z]) and may be
> followed by any number of letters, digits ([0-9]), hyphens ("-"),
> underscores ("_"), colons (":"), and periods (".").
>
> Maybe we should:
> $textAreaId = preg_replace('/[^a-zA-Z0-9_:.-]/', '_',
> $PA['itemFormElName']);
> $textAreaId = htmlspecialchars(preg_replace('/^[^a-zA-Z]/', 'x',
> $texAreaId));
>
Indeed. Thanks for the review.

The attached follow-up patch was committed to trunk (revision 8778) and
branch TYPO3_4-4 (revision 8779).

Kind regards,
Stan

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