xmlNsPtr xsltGetNamespace	(	xsltTransformContextPtr	ctxt,
		xmlNodePtr	cur,
		xmlNsPtr	ns,
		xmlNodePtr	out
	)

xsltGetNamespace: : a transformation context : the input node : the namespace : the output node (or its parent)

Find a matching (prefix and ns-name) ns-declaration for the requested ->prefix and ->href in the result tree. If none is found then a new ns-declaration will be added to . If, in this case, the given prefix is already in use, then a ns-declaration with a modified ns-prefix be we created.

Called by:

xsltCopyPropList() (*not* anymore)
xsltShallowCopyElement()
xsltCopyTreeInternal() (*not* anymore)
xsltApplySequenceConstructor() (*not* in the refactored code),
xsltElement() (*not* anymore)

Returns a namespace declaration or NULL in case of namespace fixup failures or API or internal errors.

Definition at line 634 of file namespaces.c.

Referenced by xsltApplySequenceConstructor(), xsltAttrListTemplateProcess(), xsltAttrTemplateProcess(), xsltGetPlainNamespace(), and xsltShallowCopyElem().

{    
    
    if (ns == NULL)
    return(NULL);

#ifdef XSLT_REFACTORED
    /*
    * Namespace exclusion and ns-aliasing is performed at
    * compilation-time in the refactored code.
    * Additionally, aliasing is not intended for non Literal
    * Result Elements.
    */
    return(xsltGetSpecialNamespace(ctxt, cur, ns->href, ns->prefix, out));
#else
    {
    xsltStylesheetPtr style;
    const xmlChar *URI = NULL; /* the replacement URI */

    if ((ctxt == NULL) || (cur == NULL) || (out == NULL))
        return(NULL);

    style = ctxt->style;
    while (style != NULL) {
        if (style->nsAliases != NULL)
        URI = (const xmlChar *) 
        xmlHashLookup(style->nsAliases, ns->href);
        if (URI != NULL)
        break;
        
        style = xsltNextImport(style);
    }
    
    
    if (URI == UNDEFINED_DEFAULT_NS) {
        return(xsltGetSpecialNamespace(ctxt, cur, NULL, NULL, out));
#if 0
        /*
        * TODO: Removed, since wrong. If there was no default
        * namespace in the stylesheet then this must resolve to
        * the NULL namespace.
        */
        xmlNsPtr dflt;      
        dflt = xmlSearchNs(cur->doc, cur, NULL);
        if (dflt != NULL)
        URI = dflt->href;
        else
        return NULL;
#endif
    } else if (URI == NULL)
        URI = ns->href;

    return(xsltGetSpecialNamespace(ctxt, cur, URI, ns->prefix, out));
    }
#endif
}

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