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814 lines
23 KiB
C
814 lines
23 KiB
C
/*
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* namespaces.c: Implementation of the XSLT namespaces handling
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*
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* Reference:
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* http://www.w3.org/TR/1999/REC-xslt-19991116
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*
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* See Copyright for the status of this software.
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*
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* daniel@veillard.com
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*/
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#include "precomp.h"
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/************************************************************************
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* *
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* Module interfaces *
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* *
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************************************************************************/
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#ifdef XSLT_REFACTORED
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static xsltNsAliasPtr
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xsltNewNsAlias(xsltCompilerCtxtPtr cctxt)
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{
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xsltNsAliasPtr ret;
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if (cctxt == NULL)
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return(NULL);
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ret = (xsltNsAliasPtr) xmlMalloc(sizeof(xsltNsAlias));
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if (ret == NULL) {
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xsltTransformError(NULL, cctxt->style, NULL,
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"Internal error in xsltNewNsAlias(): Memory allocation failed.\n");
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cctxt->style->errors++;
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return(NULL);
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}
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memset(ret, 0, sizeof(xsltNsAlias));
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/*
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* TODO: Store the item at current stylesheet-level.
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*/
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ret->next = cctxt->nsAliases;
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cctxt->nsAliases = ret;
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return(ret);
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}
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#endif /* XSLT_REFACTORED */
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/**
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* xsltNamespaceAlias:
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* @style: the XSLT stylesheet
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* @node: the xsl:namespace-alias node
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*
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* Read the stylesheet-prefix and result-prefix attributes, register
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* them as well as the corresponding namespace.
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*/
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void
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xsltNamespaceAlias(xsltStylesheetPtr style, xmlNodePtr node)
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{
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xmlChar *resultPrefix = NULL;
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xmlChar *stylePrefix = NULL;
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xmlNsPtr literalNs = NULL;
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xmlNsPtr targetNs = NULL;
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#ifdef XSLT_REFACTORED
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xsltNsAliasPtr alias;
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if ((style == NULL) || (node == NULL))
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return;
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/*
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* SPEC XSLT 1.0:
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* "If a namespace URI is declared to be an alias for multiple
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* different namespace URIs, then the declaration with the highest
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* import precedence is used. It is an error if there is more than
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* one such declaration. An XSLT processor may signal the error;
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* if it does not signal the error, it must recover by choosing,
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* from amongst the declarations with the highest import precedence,
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* the one that occurs last in the stylesheet."
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*
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* SPEC TODO: Check for the errors mentioned above.
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*/
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/*
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* NOTE that the XSLT 2.0 also *does* use the NULL namespace if
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* "#default" is used and there's no default namespace is scope.
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* I.e., this is *not* an error.
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* Most XSLT 1.0 implementations work this way.
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* The XSLT 1.0 spec has nothing to say on the subject.
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*/
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/*
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* Attribute "stylesheet-prefix".
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*/
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stylePrefix = xmlGetNsProp(node, (const xmlChar *)"stylesheet-prefix", NULL);
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if (stylePrefix == NULL) {
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xsltTransformError(NULL, style, node,
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"The attribute 'stylesheet-prefix' is missing.\n");
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return;
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}
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if (xmlStrEqual(stylePrefix, (const xmlChar *)"#default"))
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literalNs = xmlSearchNs(node->doc, node, NULL);
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else {
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literalNs = xmlSearchNs(node->doc, node, stylePrefix);
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if (literalNs == NULL) {
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xsltTransformError(NULL, style, node,
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"Attribute 'stylesheet-prefix': There's no namespace "
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"declaration in scope for the prefix '%s'.\n",
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stylePrefix);
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goto error;
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}
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}
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/*
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* Attribute "result-prefix".
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*/
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resultPrefix = xmlGetNsProp(node, (const xmlChar *)"result-prefix", NULL);
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if (resultPrefix == NULL) {
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xsltTransformError(NULL, style, node,
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"The attribute 'result-prefix' is missing.\n");
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goto error;
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}
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if (xmlStrEqual(resultPrefix, (const xmlChar *)"#default"))
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targetNs = xmlSearchNs(node->doc, node, NULL);
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else {
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targetNs = xmlSearchNs(node->doc, node, resultPrefix);
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if (targetNs == NULL) {
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xsltTransformError(NULL, style, node,
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"Attribute 'result-prefix': There's no namespace "
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"declaration in scope for the prefix '%s'.\n",
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stylePrefix);
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goto error;
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}
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}
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/*
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*
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* Same alias for multiple different target namespace URIs:
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* TODO: The one with the highest import precedence is used.
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* Example:
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* <xsl:namespace-alias stylesheet-prefix="foo"
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* result-prefix="bar"/>
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*
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* <xsl:namespace-alias stylesheet-prefix="foo"
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* result-prefix="zar"/>
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*
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* Same target namespace URI for multiple different aliases:
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* All alias-definitions will be used.
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* Example:
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* <xsl:namespace-alias stylesheet-prefix="bar"
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* result-prefix="foo"/>
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*
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* <xsl:namespace-alias stylesheet-prefix="zar"
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* result-prefix="foo"/>
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* Cases using #default:
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* <xsl:namespace-alias stylesheet-prefix="#default"
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* result-prefix="#default"/>
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* TODO: Has this an effect at all?
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*
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* <xsl:namespace-alias stylesheet-prefix="foo"
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* result-prefix="#default"/>
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* From namespace to no namespace.
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*
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* <xsl:namespace-alias stylesheet-prefix="#default"
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* result-prefix="foo"/>
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* From no namespace to namespace.
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*/
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/*
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* Store the ns-node in the alias-object.
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*/
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alias = xsltNewNsAlias(XSLT_CCTXT(style));
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if (alias == NULL)
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return;
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alias->literalNs = literalNs;
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alias->targetNs = targetNs;
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XSLT_CCTXT(style)->hasNsAliases = 1;
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#else /* XSLT_REFACTORED */
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const xmlChar *literalNsName;
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const xmlChar *targetNsName;
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if ((style == NULL) || (node == NULL))
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return;
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stylePrefix = xmlGetNsProp(node, (const xmlChar *)"stylesheet-prefix", NULL);
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if (stylePrefix == NULL) {
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xsltTransformError(NULL, style, node,
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"namespace-alias: stylesheet-prefix attribute missing\n");
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return;
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}
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resultPrefix = xmlGetNsProp(node, (const xmlChar *)"result-prefix", NULL);
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if (resultPrefix == NULL) {
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xsltTransformError(NULL, style, node,
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"namespace-alias: result-prefix attribute missing\n");
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goto error;
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}
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if (xmlStrEqual(stylePrefix, (const xmlChar *)"#default")) {
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literalNs = xmlSearchNs(node->doc, node, NULL);
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if (literalNs == NULL) {
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literalNsName = NULL;
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} else
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literalNsName = literalNs->href; /* Yes - set for nsAlias table */
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} else {
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literalNs = xmlSearchNs(node->doc, node, stylePrefix);
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if ((literalNs == NULL) || (literalNs->href == NULL)) {
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xsltTransformError(NULL, style, node,
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"namespace-alias: prefix %s not bound to any namespace\n",
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stylePrefix);
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goto error;
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} else
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literalNsName = literalNs->href;
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}
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/*
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* When "#default" is used for result, if a default namespace has not
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* been explicitly declared the special value UNDEFINED_DEFAULT_NS is
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* put into the nsAliases table
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*/
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if (xmlStrEqual(resultPrefix, (const xmlChar *)"#default")) {
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targetNs = xmlSearchNs(node->doc, node, NULL);
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if (targetNs == NULL) {
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targetNsName = UNDEFINED_DEFAULT_NS;
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} else
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targetNsName = targetNs->href;
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} else {
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targetNs = xmlSearchNs(node->doc, node, resultPrefix);
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if ((targetNs == NULL) || (targetNs->href == NULL)) {
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xsltTransformError(NULL, style, node,
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"namespace-alias: prefix %s not bound to any namespace\n",
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resultPrefix);
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goto error;
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} else
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targetNsName = targetNs->href;
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}
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/*
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* Special case: if #default is used for
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* the stylesheet-prefix (literal namespace) and there's no default
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* namespace in scope, we'll use style->defaultAlias for this.
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*/
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if (literalNsName == NULL) {
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if (targetNs != NULL) {
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/*
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* BUG TODO: Is it not sufficient to have only 1 field for
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* this, since subsequently alias declarations will
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* overwrite this.
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* Example:
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* <xsl:namespace-alias result-prefix="foo"
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* stylesheet-prefix="#default"/>
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* <xsl:namespace-alias result-prefix="bar"
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* stylesheet-prefix="#default"/>
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* The mapping for "foo" won't be visible anymore.
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*/
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style->defaultAlias = targetNs->href;
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}
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} else {
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if (style->nsAliases == NULL)
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style->nsAliases = xmlHashCreate(10);
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if (style->nsAliases == NULL) {
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xsltTransformError(NULL, style, node,
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"namespace-alias: cannot create hash table\n");
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goto error;
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}
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xmlHashAddEntry((xmlHashTablePtr) style->nsAliases,
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literalNsName, (void *) targetNsName);
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}
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#endif /* else of XSLT_REFACTORED */
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error:
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if (stylePrefix != NULL)
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xmlFree(stylePrefix);
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if (resultPrefix != NULL)
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xmlFree(resultPrefix);
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}
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/**
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* xsltGetSpecialNamespace:
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* @ctxt: the transformation context
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* @invocNode: the invoking node; e.g. a literal result element/attr;
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* only used for error reports
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* @nsName: the namespace name (or NULL)
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* @nsPrefix: the suggested namespace prefix (or NULL)
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* @target: the result element on which to anchor a namespace
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*
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* Find a matching (prefix and ns-name) ns-declaration
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* for the requested @nsName and @nsPrefix in the result tree.
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* If none is found then a new ns-declaration will be
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* added to @resultElem. If, in this case, the given prefix is
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* already in use, then a ns-declaration with a modified ns-prefix
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* be we created. Note that this function's priority is to
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* preserve ns-prefixes; it will only change a prefix if there's
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* a namespace clash.
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* If both @nsName and @nsPrefix are NULL, then this will try to
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* "undeclare" a default namespace by declaring an xmlns="".
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*
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* Returns a namespace declaration or NULL.
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*/
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xmlNsPtr
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xsltGetSpecialNamespace(xsltTransformContextPtr ctxt, xmlNodePtr invocNode,
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const xmlChar *nsName, const xmlChar *nsPrefix,
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xmlNodePtr target)
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{
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xmlNsPtr ns;
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int prefixOccupied = 0;
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if ((ctxt == NULL) || (target == NULL) ||
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(target->type != XML_ELEMENT_NODE))
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return(NULL);
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/*
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* NOTE: Namespace exclusion and ns-aliasing is performed at
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* compilation-time in the refactored code; so this need not be done
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* here (it was in the old code).
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* NOTE: @invocNode was named @cur in the old code and was documented to
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* be an input node; since it was only used to anchor an error report
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* somewhere, we can safely change this to @invocNode, which now
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* will be the XSLT instruction (also a literal result element/attribute),
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* which was responsible for this call.
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*/
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/*
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* OPTIMIZE TODO: This all could be optimized by keeping track of
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* the ns-decls currently in-scope via a specialized context.
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*/
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if ((nsPrefix == NULL) && ((nsName == NULL) || (nsName[0] == 0))) {
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/*
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* NOTE: the "undeclaration" of the default namespace was
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* part of the logic of the old xsltGetSpecialNamespace() code,
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* so we'll keep that mechanism.
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* Related to the old code: bug #302020:
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*/
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/*
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* OPTIMIZE TODO: This all could be optimized by keeping track of
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* the ns-decls currently in-scope via a specialized context.
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*/
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/*
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* Search on the result element itself.
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*/
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if (target->nsDef != NULL) {
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ns = target->nsDef;
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do {
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if (ns->prefix == NULL) {
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if ((ns->href != NULL) && (ns->href[0] != 0)) {
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/*
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* Raise a namespace normalization error.
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*/
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xsltTransformError(ctxt, NULL, invocNode,
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"Namespace normalization error: Cannot undeclare "
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"the default namespace, since the default namespace "
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"'%s' is already declared on the result element "
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"'%s'.\n", ns->href, target->name);
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return(NULL);
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} else {
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/*
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* The default namespace was undeclared on the
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* result element.
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*/
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return(NULL);
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}
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break;
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}
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ns = ns->next;
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} while (ns != NULL);
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}
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if ((target->parent != NULL) &&
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(target->parent->type == XML_ELEMENT_NODE))
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{
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/*
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* The parent element is in no namespace, so assume
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* that there is no default namespace in scope.
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*/
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if (target->parent->ns == NULL)
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return(NULL);
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ns = xmlSearchNs(target->doc, target->parent,
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NULL);
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/*
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* Fine if there's no default ns is scope, or if the
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* default ns was undeclared.
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*/
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if ((ns == NULL) || (ns->href == NULL) || (ns->href[0] == 0))
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return(NULL);
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/*
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* Undeclare the default namespace.
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*/
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xmlNewNs(target, BAD_CAST "", NULL);
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/* TODO: Check result */
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return(NULL);
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}
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return(NULL);
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}
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/*
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* Handle the XML namespace.
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* QUESTION: Is this faster than using xmlStrEqual() anyway?
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*/
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if ((nsPrefix != NULL) &&
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(nsPrefix[0] == 'x') && (nsPrefix[1] == 'm') &&
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(nsPrefix[2] == 'l') && (nsPrefix[3] == 0))
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{
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return(xmlSearchNs(target->doc, target, nsPrefix));
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}
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/*
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* First: search on the result element itself.
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*/
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if (target->nsDef != NULL) {
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ns = target->nsDef;
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do {
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if ((ns->prefix == NULL) == (nsPrefix == NULL)) {
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if (ns->prefix == nsPrefix) {
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if (xmlStrEqual(ns->href, nsName))
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return(ns);
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prefixOccupied = 1;
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break;
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} else if (xmlStrEqual(ns->prefix, nsPrefix)) {
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if (xmlStrEqual(ns->href, nsName))
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return(ns);
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prefixOccupied = 1;
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break;
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}
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}
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ns = ns->next;
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} while (ns != NULL);
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}
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if (prefixOccupied) {
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/*
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* If the ns-prefix is occupied by an other ns-decl on the
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* result element, then this means:
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* 1) The desired prefix is shadowed
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* 2) There's no way around changing the prefix
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*
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* Try a desperate search for an in-scope ns-decl
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* with a matching ns-name before we use the last option,
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* which is to recreate the ns-decl with a modified prefix.
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*/
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ns = xmlSearchNsByHref(target->doc, target, nsName);
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if (ns != NULL)
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return(ns);
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/*
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* Fallback to changing the prefix.
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*/
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} else if ((target->parent != NULL) &&
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(target->parent->type == XML_ELEMENT_NODE))
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{
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/*
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* Try to find a matching ns-decl in the ancestor-axis.
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*
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* Check the common case: The parent element of the current
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* result element is in the same namespace (with an equal ns-prefix).
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*/
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if ((target->parent->ns != NULL) &&
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((target->parent->ns->prefix != NULL) == (nsPrefix != NULL)))
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{
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ns = target->parent->ns;
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if (nsPrefix == NULL) {
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if (xmlStrEqual(ns->href, nsName))
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return(ns);
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} else if (xmlStrEqual(ns->prefix, nsPrefix) &&
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xmlStrEqual(ns->href, nsName))
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{
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return(ns);
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}
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}
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/*
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* Lookup the remaining in-scope namespaces.
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*/
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ns = xmlSearchNs(target->doc, target->parent, nsPrefix);
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if (ns != NULL) {
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if (xmlStrEqual(ns->href, nsName))
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return(ns);
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/*
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* Now check for a nasty case: We need to ensure that the new
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* ns-decl won't shadow a prefix in-use by an existing attribute.
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* <foo xmlns:a="urn:test:a">
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* <bar a:a="val-a">
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* <xsl:attribute xmlns:a="urn:test:b" name="a:b">
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* val-b</xsl:attribute>
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* </bar>
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* </foo>
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*/
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if (target->properties) {
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xmlAttrPtr attr = target->properties;
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do {
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if ((attr->ns) &&
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xmlStrEqual(attr->ns->prefix, nsPrefix))
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{
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/*
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* Bad, this prefix is already in use.
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* Since we'll change the prefix anyway, try
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* a search for a matching ns-decl based on the
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* namespace name.
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*/
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ns = xmlSearchNsByHref(target->doc, target, nsName);
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if (ns != NULL)
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return(ns);
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goto declare_new_prefix;
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}
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attr = attr->next;
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} while (attr != NULL);
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}
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} else {
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/*
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* Either no matching ns-prefix was found or the namespace is
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* shadowed.
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* Create a new ns-decl on the current result element.
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*
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* Hmm, we could also try to reuse an in-scope
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* namespace with a matching ns-name but a different
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* ns-prefix.
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* What has higher priority?
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* 1) If keeping the prefix: create a new ns-decl.
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* 2) If reusal: first lookup ns-names; then fallback
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* to creation of a new ns-decl.
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* REVISIT: this currently uses case 1) although
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* the old way was use xmlSearchNsByHref() and to let change
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* the prefix.
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*/
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#if 0
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ns = xmlSearchNsByHref(target->doc, target, nsName);
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if (ns != NULL)
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return(ns);
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#endif
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}
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/*
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* Create the ns-decl on the current result element.
|
|
*/
|
|
ns = xmlNewNs(target, nsName, nsPrefix);
|
|
/* TODO: check errors */
|
|
return(ns);
|
|
} else {
|
|
/*
|
|
* This is either the root of the tree or something weird is going on.
|
|
*/
|
|
ns = xmlNewNs(target, nsName, nsPrefix);
|
|
/* TODO: Check result */
|
|
return(ns);
|
|
}
|
|
|
|
declare_new_prefix:
|
|
/*
|
|
* Fallback: we need to generate a new prefix and declare the namespace
|
|
* on the result element.
|
|
*/
|
|
{
|
|
xmlChar pref[30];
|
|
int counter = 1;
|
|
|
|
if (nsPrefix == NULL) {
|
|
nsPrefix = BAD_CAST "ns";
|
|
}
|
|
|
|
do {
|
|
snprintf((char *) pref, 30, "%s_%d", nsPrefix, counter++);
|
|
ns = xmlSearchNs(target->doc, target, BAD_CAST pref);
|
|
if (counter > 1000) {
|
|
xsltTransformError(ctxt, NULL, invocNode,
|
|
"Internal error in xsltAcquireResultInScopeNs(): "
|
|
"Failed to compute a unique ns-prefix for the "
|
|
"generated element");
|
|
return(NULL);
|
|
}
|
|
} while (ns != NULL);
|
|
ns = xmlNewNs(target, nsName, BAD_CAST pref);
|
|
/* TODO: Check result */
|
|
return(ns);
|
|
}
|
|
return(NULL);
|
|
}
|
|
|
|
/**
|
|
* xsltGetNamespace:
|
|
* @ctxt: a transformation context
|
|
* @cur: the input node
|
|
* @ns: the namespace
|
|
* @out: the output node (or its parent)
|
|
*
|
|
* Find a matching (prefix and ns-name) ns-declaration
|
|
* for the requested @ns->prefix and @ns->href in the result tree.
|
|
* If none is found then a new ns-declaration will be
|
|
* added to @resultElem. 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.
|
|
*/
|
|
xmlNsPtr
|
|
xsltGetNamespace(xsltTransformContextPtr ctxt, xmlNodePtr cur, xmlNsPtr ns,
|
|
xmlNodePtr out)
|
|
{
|
|
|
|
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
|
|
}
|
|
|
|
/**
|
|
* xsltGetPlainNamespace:
|
|
* @ctxt: a transformation context
|
|
* @cur: the input node
|
|
* @ns: the namespace
|
|
* @out: the result element
|
|
*
|
|
* Obsolete.
|
|
* *Not* called by any Libxslt/Libexslt function.
|
|
* Exaclty the same as xsltGetNamespace().
|
|
*
|
|
* Returns a namespace declaration or NULL in case of
|
|
* namespace fixup failures or API or internal errors.
|
|
*/
|
|
xmlNsPtr
|
|
xsltGetPlainNamespace(xsltTransformContextPtr ctxt, xmlNodePtr cur,
|
|
xmlNsPtr ns, xmlNodePtr out)
|
|
{
|
|
return(xsltGetNamespace(ctxt, cur, ns, out));
|
|
}
|
|
|
|
/**
|
|
* xsltCopyNamespaceList:
|
|
* @ctxt: a transformation context
|
|
* @node: the target node
|
|
* @cur: the first namespace
|
|
*
|
|
* Do a copy of an namespace list. If @node is non-NULL the
|
|
* new namespaces are added automatically. This handles namespaces
|
|
* aliases.
|
|
* This function is intended only for *internal* use at
|
|
* transformation-time for copying ns-declarations of Literal
|
|
* Result Elements.
|
|
*
|
|
* Called by:
|
|
* xsltCopyTreeInternal() (transform.c)
|
|
* xsltShallowCopyElem() (transform.c)
|
|
*
|
|
* REVISIT: This function won't be used in the refactored code.
|
|
*
|
|
* Returns: a new xmlNsPtr, or NULL in case of error.
|
|
*/
|
|
xmlNsPtr
|
|
xsltCopyNamespaceList(xsltTransformContextPtr ctxt, xmlNodePtr node,
|
|
xmlNsPtr cur) {
|
|
xmlNsPtr ret = NULL, tmp;
|
|
xmlNsPtr p = NULL,q;
|
|
|
|
if (cur == NULL)
|
|
return(NULL);
|
|
if (cur->type != XML_NAMESPACE_DECL)
|
|
return(NULL);
|
|
|
|
/*
|
|
* One can add namespaces only on element nodes
|
|
*/
|
|
if ((node != NULL) && (node->type != XML_ELEMENT_NODE))
|
|
node = NULL;
|
|
|
|
while (cur != NULL) {
|
|
if (cur->type != XML_NAMESPACE_DECL)
|
|
break;
|
|
|
|
/*
|
|
* Avoid duplicating namespace declarations in the tree if
|
|
* a matching declaration is in scope.
|
|
*/
|
|
if (node != NULL) {
|
|
if ((node->ns != NULL) &&
|
|
(xmlStrEqual(node->ns->prefix, cur->prefix)) &&
|
|
(xmlStrEqual(node->ns->href, cur->href))) {
|
|
cur = cur->next;
|
|
continue;
|
|
}
|
|
tmp = xmlSearchNs(node->doc, node, cur->prefix);
|
|
if ((tmp != NULL) && (xmlStrEqual(tmp->href, cur->href))) {
|
|
cur = cur->next;
|
|
continue;
|
|
}
|
|
}
|
|
#ifdef XSLT_REFACTORED
|
|
/*
|
|
* Namespace exclusion and ns-aliasing is performed at
|
|
* compilation-time in the refactored code.
|
|
*/
|
|
q = xmlNewNs(node, cur->href, cur->prefix);
|
|
if (p == NULL) {
|
|
ret = p = q;
|
|
} else {
|
|
p->next = q;
|
|
p = q;
|
|
}
|
|
#else
|
|
/*
|
|
* TODO: Remove this if the refactored code gets enabled.
|
|
*/
|
|
if (!xmlStrEqual(cur->href, XSLT_NAMESPACE)) {
|
|
const xmlChar *URI;
|
|
/* TODO apply cascading */
|
|
URI = (const xmlChar *) xmlHashLookup(ctxt->style->nsAliases,
|
|
cur->href);
|
|
if (URI == UNDEFINED_DEFAULT_NS)
|
|
continue;
|
|
if (URI != NULL) {
|
|
q = xmlNewNs(node, URI, cur->prefix);
|
|
} else {
|
|
q = xmlNewNs(node, cur->href, cur->prefix);
|
|
}
|
|
if (p == NULL) {
|
|
ret = p = q;
|
|
} else {
|
|
p->next = q;
|
|
p = q;
|
|
}
|
|
}
|
|
#endif
|
|
cur = cur->next;
|
|
}
|
|
return(ret);
|
|
}
|
|
|
|
/**
|
|
* xsltCopyNamespace:
|
|
* @ctxt: a transformation context
|
|
* @elem: the target element node
|
|
* @ns: the namespace node
|
|
*
|
|
* Copies a namespace node (declaration). If @elem is not NULL,
|
|
* then the new namespace will be declared on @elem.
|
|
*
|
|
* Returns: a new xmlNsPtr, or NULL in case of an error.
|
|
*/
|
|
xmlNsPtr
|
|
xsltCopyNamespace(xsltTransformContextPtr ctxt ATTRIBUTE_UNUSED,
|
|
xmlNodePtr elem, xmlNsPtr ns)
|
|
{
|
|
if ((ns == NULL) || (ns->type != XML_NAMESPACE_DECL))
|
|
return(NULL);
|
|
/*
|
|
* One can add namespaces only on element nodes
|
|
*/
|
|
if ((elem != NULL) && (elem->type != XML_ELEMENT_NODE))
|
|
return(xmlNewNs(NULL, ns->href, ns->prefix));
|
|
else
|
|
return(xmlNewNs(elem, ns->href, ns->prefix));
|
|
}
|
|
|
|
|
|
/**
|
|
* xsltFreeNamespaceAliasHashes:
|
|
* @style: an XSLT stylesheet
|
|
*
|
|
* Free up the memory used by namespaces aliases
|
|
*/
|
|
void
|
|
xsltFreeNamespaceAliasHashes(xsltStylesheetPtr style) {
|
|
if (style->nsAliases != NULL)
|
|
xmlHashFree((xmlHashTablePtr) style->nsAliases, NULL);
|
|
style->nsAliases = NULL;
|
|
}
|