On mercredi 15 novembre 2017 10:58:23 CET Ari Jolma wrote:
> I thought it would be perhaps good to have CPLGetXMLBoolean since we
> have CPLFetchBool and many of the option values needed by the new WCS
> driver are boolean flags and the option values end up in the service
> XML. It would twist the brain a bit less if one could simply use
> CPLGetXMLBoolean.
>
> The logic of CPLFetchBool is that it is true if a key exists but is not
> defined or if the value is not something considered untrue ('NO', etc).
> The logic of CPLGetXMLValue is that it returns the given default in the
> case the element/attribute is not found or if it is found but is empty,
> i.e., not defined.
>
> Thus the return value of CPLGetXMLBoolean can't use CPLGetXMLValue if it
> follows the logic of CPLFetchBool. That is true is existence and no denial.
>
Why not
CPLGetXMLBoolean(node) == CPLTestBool(CPLGetXMLValue(node,NULL,"NO")) ?
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