/*
* xmlCreateEntity:
*
* internal routine doing the entity node strutures allocations
*/
static xmlEntityPtr
xmlCreateEntity(xmlDictPtr dict, const xmlChar *name, int type,
const xmlChar *ExternalID, const xmlChar *SystemID,
const xmlChar *content)
{
xmlEntityPtr ret;
ret = (xmlEntityPtr) xmlMalloc(sizeof(xmlEntity));
if (ret == NULL)
{
xmlEntitiesErrMemory("xmlCreateEntity: malloc failed");
return(NULL);
}
memset(ret, 0, sizeof(xmlEntity));
ret->type = XML_ENTITY_DECL;
ret->checked = 0;
/*
* fill the structure.
*/
ret->etype = (xmlEntityType) type;
if (dict == NULL)
{
ret->name = xmlStrdup(name);
if (ExternalID != NULL)
ret->ExternalID = xmlStrdup(ExternalID);
if (SystemID != NULL)
ret->SystemID = xmlStrdup(SystemID);
}
else
{
ret->name = xmlDictLookup(dict, name, -1);
if (ExternalID != NULL)
ret->ExternalID = xmlDictLookup(dict, ExternalID, -1);
if (SystemID != NULL)
ret->SystemID = xmlDictLookup(dict, SystemID, -1);
}
if (content != NULL)
{
ret->length = xmlStrlen(content);
if ((dict != NULL) && (ret->length < 5))
ret->content = (xmlChar *)
xmlDictLookup(dict, content, ret->length);
else
ret->content = xmlStrndup(content, ret->length);
}
else
{
ret->length = 0;
ret->content = NULL;
}
ret->URI = NULL; /* to be computed by the layer knowing
the defining entity */
ret->orig = NULL;
ret->owner = 0;
return(ret);
}
/**
* xsltEvalStaticAttrValueTemplate:
* @style: the XSLT stylesheet
* @inst: the instruction (or LRE) in the stylesheet holding the
* attribute with an AVT
* @name: the attribute Name
* @ns: the attribute namespace URI
* @found: indicator whether the attribute is present
*
* Check if an attribute value template has a static value, i.e. the
* attribute value does not contain expressions contained in curly braces ({})
*
* Returns the static string value or NULL, must be deallocated by the
* caller.
*/
const xmlChar *
xsltEvalStaticAttrValueTemplate(xsltStylesheetPtr style, xmlNodePtr inst,
const xmlChar *name, const xmlChar *ns, int *found) {
const xmlChar *ret;
xmlChar *expr;
if ((style == NULL) || (inst == NULL) || (name == NULL))
return(NULL);
expr = xsltGetNsProp(inst, name, ns);
if (expr == NULL) {
*found = 0;
return(NULL);
}
*found = 1;
ret = xmlStrchr(expr, '{');
if (ret != NULL) {
xmlFree(expr);
return(NULL);
}
ret = xmlDictLookup(style->dict, expr, -1);
xmlFree(expr);
return(ret);
}
/**
* xmlSchematronNewParserCtxt:
* @URL: the location of the schema
*
* Create an XML Schematrons parse context for that file/resource expected
* to contain an XML Schematrons file.
*
* Returns the parser context or NULL in case of error
*/
xmlSchematronParserCtxtPtr
xmlSchematronNewParserCtxt(const char *URL)
{
xmlSchematronParserCtxtPtr ret;
if (URL == NULL)
return (NULL);
ret =
(xmlSchematronParserCtxtPtr)
xmlMalloc(sizeof(xmlSchematronParserCtxt));
if (ret == NULL) {
xmlSchematronPErrMemory(NULL, "allocating schema parser context",
NULL);
return (NULL);
}
memset(ret, 0, sizeof(xmlSchematronParserCtxt));
ret->type = XML_STRON_CTXT_PARSER;
ret->dict = xmlDictCreate();
ret->URL = xmlDictLookup(ret->dict, (const xmlChar *) URL, -1);
ret->includes = NULL;
ret->xctxt = xmlXPathNewContext(NULL);
if (ret->xctxt == NULL) {
xmlSchematronPErrMemory(NULL, "allocating schema parser XPath context",
NULL);
xmlSchematronFreeParserCtxt(ret);
return (NULL);
}
ret->xctxt->flags = XML_XPATH_CHECKNS;
return (ret);
}
void
xsltApplyAttributeSet(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst ATTRIBUTE_UNUSED,
const xmlChar * attributes)
{
const xmlChar *ncname = NULL;
const xmlChar *prefix = NULL;
const xmlChar *attrib, *endattr;
xsltAttrElemPtr values;
xsltStylesheetPtr style;
if (attributes == NULL) {
return;
}
attrib = attributes;
while (*attrib != 0) {
while (IS_BLANK(*attrib))
attrib++;
if (*attrib == 0)
break;
endattr = attrib;
while ((*endattr != 0) && (!IS_BLANK(*endattr)))
endattr++;
attrib = xmlDictLookup(ctxt->dict, attrib, endattr - attrib);
if (attrib) {
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"apply attribute set %s\n", attrib);
#endif
ncname = xsltSplitQName(ctxt->dict, attrib, &prefix);
style = ctxt->style;
#ifdef WITH_DEBUGGER
if ((style != NULL) && (style->attributeSets != NULL) &&
(ctxt->debugStatus != XSLT_DEBUG_NONE)) {
values =
xmlHashLookup2(style->attributeSets, ncname, prefix);
if ((values != NULL) && (values->attr != NULL))
xslHandleDebugger(values->attr->parent, node, NULL,
ctxt);
}
#endif
while (style != NULL) {
values =
xmlHashLookup2(style->attributeSets, ncname, prefix);
while (values != NULL) {
if (values->attr != NULL) {
xsltAttributeInternal(ctxt, node, values->attr,
values->attr->psvi, 1);
}
values = values->next;
}
style = xsltNextImport(style);
}
}
attrib = endattr;
}
}
/**
* xmlSchematronAddNamespace:
* @ctxt: the schema parser context
* @prefix: the namespace prefix
* @ns: the namespace name
*
* Add a namespace definition in the context
*/
static void
xmlSchematronAddNamespace(xmlSchematronParserCtxtPtr ctxt,
const xmlChar *prefix, const xmlChar *ns)
{
if (ctxt->namespaces == NULL) {
ctxt->maxNamespaces = 10;
ctxt->namespaces = (const xmlChar **)
xmlMalloc(ctxt->maxNamespaces * 2 * sizeof(const xmlChar *));
if (ctxt->namespaces == NULL) {
xmlSchematronPErrMemory(NULL, "allocating parser namespaces",
NULL);
return;
}
ctxt->nbNamespaces = 0;
} else if (ctxt->nbNamespaces + 2 >= ctxt->maxNamespaces) {
const xmlChar **tmp;
tmp = (const xmlChar **)
xmlRealloc((xmlChar **) ctxt->namespaces, ctxt->maxNamespaces * 4 *
sizeof(const xmlChar *));
if (tmp == NULL) {
xmlSchematronPErrMemory(NULL, "allocating parser namespaces",
NULL);
return;
}
ctxt->namespaces = tmp;
ctxt->maxNamespaces *= 2;
}
ctxt->namespaces[2 * ctxt->nbNamespaces] =
xmlDictLookup(ctxt->dict, ns, -1);
ctxt->namespaces[2 * ctxt->nbNamespaces + 1] =
xmlDictLookup(ctxt->dict, prefix, -1);
ctxt->nbNamespaces++;
ctxt->namespaces[2 * ctxt->nbNamespaces] = NULL;
ctxt->namespaces[2 * ctxt->nbNamespaces + 1] = NULL;
}
void
xsltParseStylesheetAttributeSet(xsltStylesheetPtr style, xmlNodePtr cur) {
const xmlChar *ncname;
const xmlChar *prefix;
const xmlChar *nsUri = NULL;
xmlChar *value;
xmlNodePtr child;
xsltAttrSetPtr set;
if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE))
return;
value = xmlGetNsProp(cur, (const xmlChar *)"name", NULL);
if ((value == NULL) || (*value == 0)) {
xsltGenericError(xsltGenericErrorContext,
"xsl:attribute-set : name is missing\n");
if (value)
xmlFree(value);
return;
}
if (xmlValidateQName(value, 0)) {
xsltTransformError(NULL, style, cur,
"xsl:attribute-set : The name '%s' is not a valid QName.\n",
value);
style->errors++;
xmlFree(value);
return;
}
ncname = xsltSplitQName(style->dict, value, &prefix);
xmlFree(value);
value = NULL;
if (prefix != NULL) {
xmlNsPtr ns = xmlSearchNs(style->doc, cur, prefix);
if (ns == NULL) {
xsltTransformError(NULL, style, cur,
"xsl:attribute-set : No namespace found for QName '%s:%s'\n",
prefix, ncname);
style->errors++;
return;
}
nsUri = ns->href;
}
if (style->attributeSets == NULL) {
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"creating attribute set table\n");
#endif
style->attributeSets = xmlHashCreate(10);
}
if (style->attributeSets == NULL)
return;
set = xmlHashLookup2(style->attributeSets, ncname, nsUri);
if (set == NULL) {
set = xsltNewAttrSet();
if (set == NULL)
return;
xmlHashAddEntry2(style->attributeSets, ncname, nsUri, set);
}
/*
* Parse the content. Only xsl:attribute elements are allowed.
*/
child = cur->children;
while (child != NULL) {
/*
* Report invalid nodes.
*/
if ((child->type != XML_ELEMENT_NODE) ||
(child->ns == NULL) ||
(! IS_XSLT_ELEM(child)))
{
if (child->type == XML_ELEMENT_NODE)
xsltTransformError(NULL, style, child,
"xsl:attribute-set : unexpected child %s\n",
child->name);
else
xsltTransformError(NULL, style, child,
"xsl:attribute-set : child of unexpected type\n");
} else if (!IS_XSLT_NAME(child, "attribute")) {
xsltTransformError(NULL, style, child,
"xsl:attribute-set : unexpected child xsl:%s\n",
child->name);
} else {
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"add attribute to list %s\n", ncname);
#endif
if (child->psvi == NULL) {
xsltTransformError(NULL, style, child,
"xsl:attribute-set : internal error, attribute %s not "
"compiled\n", child->name);
}
else {
set->attrs = xsltAddAttrElemList(set->attrs, child);
}
}
child = child->next;
}
/*
* Process attribute "use-attribute-sets".
*/
value = xmlGetNsProp(cur, BAD_CAST "use-attribute-sets", NULL);
if (value != NULL) {
const xmlChar *curval, *endval;
curval = value;
while (*curval != 0) {
while (IS_BLANK(*curval)) curval++;
if (*curval == 0)
break;
endval = curval;
while ((*endval != 0) && (!IS_BLANK(*endval))) endval++;
curval = xmlDictLookup(style->dict, curval, endval - curval);
if (curval) {
const xmlChar *ncname2 = NULL;
const xmlChar *prefix2 = NULL;
const xmlChar *nsUri2 = NULL;
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"xsl:attribute-set : %s adds use %s\n", ncname, curval);
#endif
if (xmlValidateQName(curval, 0)) {
xsltTransformError(NULL, style, cur,
"xsl:attribute-set : The name '%s' in "
"use-attribute-sets is not a valid QName.\n", curval);
style->errors++;
xmlFree(value);
return;
}
ncname2 = xsltSplitQName(style->dict, curval, &prefix2);
if (prefix2 != NULL) {
xmlNsPtr ns2 = xmlSearchNs(style->doc, cur, prefix2);
if (ns2 == NULL) {
xsltTransformError(NULL, style, cur,
"xsl:attribute-set : No namespace found for QName "
"'%s:%s' in use-attribute-sets\n",
prefix2, ncname2);
style->errors++;
xmlFree(value);
return;
}
nsUri2 = ns2->href;
}
set->useAttrSets = xsltAddUseAttrSetList(set->useAttrSets,
ncname2, nsUri2);
}
curval = endval;
}
xmlFree(value);
value = NULL;
}
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"updated attribute list %s\n", ncname);
#endif
}
/**
* xmlSchematronParse:
* @ctxt: a schema validation context
*
* parse a schema definition resource and build an internal
* XML Shema struture which can be used to validate instances.
*
* Returns the internal XML Schematron structure built from the resource or
* NULL in case of error
*/
xmlSchematronPtr
xmlSchematronParse(xmlSchematronParserCtxtPtr ctxt)
{
xmlSchematronPtr ret = NULL;
xmlDocPtr doc;
xmlNodePtr root, cur;
int preserve = 0;
if (ctxt == NULL)
return (NULL);
ctxt->nberrors = 0;
/*
* First step is to parse the input document into an DOM/Infoset
*/
if (ctxt->URL != NULL) {
doc = xmlReadFile((const char *) ctxt->URL, NULL,
SCHEMATRON_PARSE_OPTIONS);
if (doc == NULL) {
xmlSchematronPErr(ctxt, NULL,
XML_SCHEMAP_FAILED_LOAD,
"xmlSchematronParse: could not load '%s'.\n",
ctxt->URL, NULL);
return (NULL);
}
ctxt->preserve = 0;
} else if (ctxt->buffer != NULL) {
doc = xmlReadMemory(ctxt->buffer, ctxt->size, NULL, NULL,
SCHEMATRON_PARSE_OPTIONS);
if (doc == NULL) {
xmlSchematronPErr(ctxt, NULL,
XML_SCHEMAP_FAILED_PARSE,
"xmlSchematronParse: could not parse.\n",
NULL, NULL);
return (NULL);
}
doc->URL = xmlStrdup(BAD_CAST "in_memory_buffer");
ctxt->URL = xmlDictLookup(ctxt->dict, BAD_CAST "in_memory_buffer", -1);
ctxt->preserve = 0;
} else if (ctxt->doc != NULL) {
doc = ctxt->doc;
preserve = 1;
ctxt->preserve = 1;
} else {
xmlSchematronPErr(ctxt, NULL,
XML_SCHEMAP_NOTHING_TO_PARSE,
"xmlSchematronParse: could not parse.\n",
NULL, NULL);
return (NULL);
}
/*
* Then extract the root and Schematron parse it
*/
root = xmlDocGetRootElement(doc);
if (root == NULL) {
xmlSchematronPErr(ctxt, (xmlNodePtr) doc,
XML_SCHEMAP_NOROOT,
"The schema has no document element.\n", NULL, NULL);
if (!preserve) {
xmlFreeDoc(doc);
}
return (NULL);
}
if (!IS_SCHEMATRON(root, "schema")) {
xmlSchematronPErr(ctxt, root,
XML_SCHEMAP_NOROOT,
"The XML document '%s' is not a XML schematron document",
ctxt->URL, NULL);
goto exit;
}
ret = xmlSchematronNewSchematron(ctxt);
if (ret == NULL)
goto exit;
ctxt->schema = ret;
/*
* scan the schema elements
*/
cur = root->children;
NEXT_SCHEMATRON(cur);
if (IS_SCHEMATRON(cur, "title")) {
xmlChar *title = xmlNodeGetContent(cur);
if (title != NULL) {
ret->title = xmlDictLookup(ret->dict, title, -1);
xmlFree(title);
}
cur = cur->next;
NEXT_SCHEMATRON(cur);
}
while (IS_SCHEMATRON(cur, "ns")) {
xmlChar *prefix = xmlGetNoNsProp(cur, BAD_CAST "prefix");
xmlChar *uri = xmlGetNoNsProp(cur, BAD_CAST "uri");
if ((uri == NULL) || (uri[0] == 0)) {
xmlSchematronPErr(ctxt, cur,
XML_SCHEMAP_NOROOT,
"ns element has no uri", NULL, NULL);
}
if ((prefix == NULL) || (prefix[0] == 0)) {
xmlSchematronPErr(ctxt, cur,
XML_SCHEMAP_NOROOT,
"ns element has no prefix", NULL, NULL);
}
if ((prefix) && (uri)) {
xmlXPathRegisterNs(ctxt->xctxt, prefix, uri);
xmlSchematronAddNamespace(ctxt, prefix, uri);
ret->nbNs++;
}
if (uri)
xmlFree(uri);
if (prefix)
xmlFree(prefix);
cur = cur->next;
NEXT_SCHEMATRON(cur);
}
while (cur != NULL) {
if (IS_SCHEMATRON(cur, "pattern")) {
xmlSchematronParsePattern(ctxt, cur);
ret->nbPattern++;
} else {
xmlSchematronPErr(ctxt, cur,
XML_SCHEMAP_NOROOT,
"Expecting a pattern element instead of %s", cur->name, NULL);
}
cur = cur->next;
NEXT_SCHEMATRON(cur);
}
if (ret->nbPattern == 0) {
xmlSchematronPErr(ctxt, root,
XML_SCHEMAP_NOROOT,
"The schematron document '%s' has no pattern",
ctxt->URL, NULL);
goto exit;
}
/* the original document must be kept for reporting */
ret->doc = doc;
if (preserve) {
ret->preserve = 1;
}
preserve = 1;
exit:
if (!preserve) {
xmlFreeDoc(doc);
}
if (ret != NULL) {
if (ctxt->nberrors != 0) {
xmlSchematronFree(ret);
ret = NULL;
} else {
ret->namespaces = ctxt->namespaces;
ret->nbNamespaces = ctxt->nbNamespaces;
ctxt->namespaces = NULL;
}
}
return (ret);
}
/**
* xmlDictQLookup:
* @dict: the dictionary
* @prefix: the prefix
* @name: the name
*
* Add the QName @prefix:@name to the hash @dict if not present.
*
* Returns the internal copy of the QName or NULL in case of internal error
*/
const xmlChar *
xmlDictQLookup(xmlDictPtr dict, const xmlChar *prefix, const xmlChar *name) {
unsigned long okey, key, nbi = 0;
xmlDictEntryPtr entry;
xmlDictEntryPtr insert;
const xmlChar *ret;
unsigned int len, plen, l;
if ((dict == NULL) || (name == NULL))
return(NULL);
if (prefix == NULL)
return(xmlDictLookup(dict, name, -1));
l = len = strlen((const char *) name);
plen = strlen((const char *) prefix);
len += 1 + plen;
/*
* Check for duplicate and insertion location.
*/
okey = xmlDictComputeQKey(dict, prefix, plen, name, l);
key = okey % dict->size;
if (dict->dict[key].valid == 0) {
insert = NULL;
} else {
for (insert = &(dict->dict[key]); insert->next != NULL;
insert = insert->next) {
if ((insert->okey == okey) && (insert->len == len) &&
(xmlStrQEqual(prefix, name, insert->name)))
return(insert->name);
nbi++;
}
if ((insert->okey == okey) && (insert->len == len) &&
(xmlStrQEqual(prefix, name, insert->name)))
return(insert->name);
}
if (dict->subdict) {
unsigned long skey;
/* we cannot always reuse the same okey for the subdict */
if (((dict->size == MIN_DICT_SIZE) &&
(dict->subdict->size != MIN_DICT_SIZE)) ||
((dict->size != MIN_DICT_SIZE) &&
(dict->subdict->size == MIN_DICT_SIZE)))
skey = xmlDictComputeQKey(dict->subdict, prefix, plen, name, l);
else
skey = okey;
key = skey % dict->subdict->size;
if (dict->subdict->dict[key].valid != 0) {
xmlDictEntryPtr tmp;
for (tmp = &(dict->subdict->dict[key]); tmp->next != NULL;
tmp = tmp->next) {
if ((tmp->okey == skey) && (tmp->len == len) &&
(xmlStrQEqual(prefix, name, tmp->name)))
return(tmp->name);
nbi++;
}
if ((tmp->okey == skey) && (tmp->len == len) &&
(xmlStrQEqual(prefix, name, tmp->name)))
return(tmp->name);
}
key = okey % dict->size;
}
ret = xmlDictAddQString(dict, prefix, plen, name, l);
if (ret == NULL)
return(NULL);
if (insert == NULL) {
entry = &(dict->dict[key]);
} else {
entry = xmlMalloc(sizeof(xmlDictEntry));
if (entry == NULL)
return(NULL);
}
entry->name = ret;
entry->len = len;
entry->next = NULL;
entry->valid = 1;
entry->okey = okey;
if (insert != NULL)
insert->next = entry;
dict->nbElems++;
if ((nbi > MAX_HASH_LEN) &&
(dict->size <= ((MAX_DICT_HASH / 2) / MAX_HASH_LEN)))
xmlDictGrow(dict, MAX_HASH_LEN * 2 * dict->size);
/* Note that entry may have been freed at this point by xmlDictGrow */
return(ret);
}
/**
* xsltAttrListTemplateProcess:
* @ctxt: the XSLT transformation context
* @target: the element where the attributes will be grafted
* @attrs: the first attribute
*
* Processes all attributes of a Literal Result Element.
* Attribute references are applied via xsl:use-attribute-set
* attributes.
* Copies all non XSLT-attributes over to the @target element
* and evaluates Attribute Value Templates.
*
* Called by xsltApplySequenceConstructor() (transform.c).
*
* Returns a new list of attribute nodes, or NULL in case of error.
* (Don't assign the result to @target->properties; if
* the result is NULL, you'll get memory leaks, since the
* attributes will be disattached.)
*/
xmlAttrPtr
xsltAttrListTemplateProcess(xsltTransformContextPtr ctxt,
xmlNodePtr target, xmlAttrPtr attrs)
{
xmlAttrPtr attr, copy, last;
xmlNodePtr oldInsert, text;
xmlNsPtr origNs = NULL, copyNs = NULL;
const xmlChar *value;
xmlChar *valueAVT;
if ((ctxt == NULL) || (target == NULL) || (attrs == NULL))
return(NULL);
oldInsert = ctxt->insert;
ctxt->insert = target;
/*
* Instantiate LRE-attributes.
*/
if (target->properties) {
last = target->properties;
while (last->next != NULL)
last = last->next;
} else {
last = NULL;
}
attr = attrs;
do {
/*
* Skip XSLT attributes.
*/
#ifdef XSLT_REFACTORED
if (attr->psvi == xsltXSLTAttrMarker) {
goto next_attribute;
}
#else
if ((attr->ns != NULL) &&
xmlStrEqual(attr->ns->href, XSLT_NAMESPACE))
{
goto next_attribute;
}
#endif
/*
* Get the value.
*/
if (attr->children != NULL) {
if ((attr->children->type != XML_TEXT_NODE) ||
(attr->children->next != NULL))
{
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: The children of an attribute node of a "
"literal result element are not in the expected form.\n");
goto error;
}
value = attr->children->content;
if (value == NULL)
value = xmlDictLookup(ctxt->dict, BAD_CAST "", 0);
} else
value = xmlDictLookup(ctxt->dict, BAD_CAST "", 0);
/*
* Create a new attribute.
*/
copy = xmlNewDocProp(target->doc, attr->name, NULL);
if (copy == NULL) {
if (attr->ns) {
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: Failed to create attribute '{%s}%s'.\n",
attr->ns->href, attr->name);
} else {
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: Failed to create attribute '%s'.\n",
attr->name);
}
goto error;
}
/*
* Attach it to the target element.
*/
copy->parent = target;
if (last == NULL) {
target->properties = copy;
last = copy;
} else {
last->next = copy;
copy->prev = last;
last = copy;
}
/*
* Set the namespace. Avoid lookups of same namespaces.
*/
if (attr->ns != origNs) {
origNs = attr->ns;
if (attr->ns != NULL) {
#ifdef XSLT_REFACTORED
copyNs = xsltGetSpecialNamespace(ctxt, attr->parent,
attr->ns->href, attr->ns->prefix, target);
#else
copyNs = xsltGetNamespace(ctxt, attr->parent,
attr->ns, target);
#endif
if (copyNs == NULL)
goto error;
} else
copyNs = NULL;
}
copy->ns = copyNs;
/*
* Set the value.
*/
text = xmlNewText(NULL);
if (text != NULL) {
copy->last = copy->children = text;
text->parent = (xmlNodePtr) copy;
text->doc = copy->doc;
if (attr->psvi != NULL) {
/*
* Evaluate the Attribute Value Template.
*/
valueAVT = xsltEvalAVT(ctxt, attr->psvi, attr->parent);
if (valueAVT == NULL) {
/*
* TODO: Damn, we need an easy mechanism to report
* qualified names!
*/
if (attr->ns) {
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: Failed to evaluate the AVT "
"of attribute '{%s}%s'.\n",
attr->ns->href, attr->name);
} else {
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: Failed to evaluate the AVT "
"of attribute '%s'.\n",
attr->name);
}
text->content = xmlStrdup(BAD_CAST "");
goto error;
} else {
text->content = valueAVT;
}
} else if ((ctxt->internalized) &&
(target->doc != NULL) &&
(target->doc->dict == ctxt->dict) &&
xmlDictOwns(ctxt->dict, value))
{
text->content = (xmlChar *) value;
} else {
text->content = xmlStrdup(value);
}
if ((copy != NULL) && (text != NULL) &&
(xmlIsID(copy->doc, copy->parent, copy)))
xmlAddID(NULL, copy->doc, text->content, copy);
}
next_attribute:
attr = attr->next;
} while (attr != NULL);
/*
* Apply attribute-sets.
* The creation of such attributes will not overwrite any existing
* attribute.
*/
attr = attrs;
do {
#ifdef XSLT_REFACTORED
if ((attr->psvi == xsltXSLTAttrMarker) &&
xmlStrEqual(attr->name, (const xmlChar *)"use-attribute-sets"))
{
xsltApplyAttributeSet(ctxt, ctxt->node, (xmlNodePtr) attr, NULL);
}
#else
if ((attr->ns != NULL) &&
xmlStrEqual(attr->name, (const xmlChar *)"use-attribute-sets") &&
xmlStrEqual(attr->ns->href, XSLT_NAMESPACE))
{
xsltApplyAttributeSet(ctxt, ctxt->node, (xmlNodePtr) attr, NULL);
}
#endif
attr = attr->next;
} while (attr != NULL);
ctxt->insert = oldInsert;
return(target->properties);
error:
ctxt->insert = oldInsert;
return(NULL);
}
/**
* xsltAttrTemplateProcess:
* @ctxt: the XSLT transformation context
* @target: the element where the attribute will be grafted
* @attr: the attribute node of a literal result element
*
* Process one attribute of a Literal Result Element (in the stylesheet).
* Evaluates Attribute Value Templates and copies the attribute over to
* the result element.
* This does *not* process attribute sets (xsl:use-attribute-set).
*
*
* Returns the generated attribute node.
*/
xmlAttrPtr
xsltAttrTemplateProcess(xsltTransformContextPtr ctxt, xmlNodePtr target,
xmlAttrPtr attr)
{
const xmlChar *value;
xmlAttrPtr ret;
if ((ctxt == NULL) || (attr == NULL) || (target == NULL))
return(NULL);
if (attr->type != XML_ATTRIBUTE_NODE)
return(NULL);
/*
* Skip all XSLT attributes.
*/
#ifdef XSLT_REFACTORED
if (attr->psvi == xsltXSLTAttrMarker)
return(NULL);
#else
if ((attr->ns != NULL) && xmlStrEqual(attr->ns->href, XSLT_NAMESPACE))
return(NULL);
#endif
/*
* Get the value.
*/
if (attr->children != NULL) {
if ((attr->children->type != XML_TEXT_NODE) ||
(attr->children->next != NULL))
{
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: The children of an attribute node of a "
"literal result element are not in the expected form.\n");
return(NULL);
}
value = attr->children->content;
if (value == NULL)
value = xmlDictLookup(ctxt->dict, BAD_CAST "", 0);
} else
value = xmlDictLookup(ctxt->dict, BAD_CAST "", 0);
/*
* Overwrite duplicates.
*/
ret = target->properties;
while (ret != NULL) {
if (((attr->ns != NULL) == (ret->ns != NULL)) &&
xmlStrEqual(ret->name, attr->name) &&
((attr->ns == NULL) || xmlStrEqual(ret->ns->href, attr->ns->href)))
{
break;
}
ret = ret->next;
}
if (ret != NULL) {
/* free the existing value */
xmlFreeNodeList(ret->children);
ret->children = ret->last = NULL;
/*
* Adjust ns-prefix if needed.
*/
if ((ret->ns != NULL) &&
(! xmlStrEqual(ret->ns->prefix, attr->ns->prefix)))
{
ret->ns = xsltGetNamespace(ctxt, attr->parent, attr->ns, target);
}
} else {
/* create a new attribute */
if (attr->ns != NULL)
ret = xmlNewNsProp(target,
xsltGetNamespace(ctxt, attr->parent, attr->ns, target),
attr->name, NULL);
else
ret = xmlNewNsProp(target, NULL, attr->name, NULL);
}
/*
* Set the value.
*/
if (ret != NULL) {
xmlNodePtr text;
text = xmlNewText(NULL);
if (text != NULL) {
ret->last = ret->children = text;
text->parent = (xmlNodePtr) ret;
text->doc = ret->doc;
if (attr->psvi != NULL) {
/*
* Evaluate the Attribute Value Template.
*/
xmlChar *val;
val = xsltEvalAVT(ctxt, attr->psvi, attr->parent);
if (val == NULL) {
/*
* TODO: Damn, we need an easy mechanism to report
* qualified names!
*/
if (attr->ns) {
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: Failed to evaluate the AVT "
"of attribute '{%s}%s'.\n",
attr->ns->href, attr->name);
} else {
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: Failed to evaluate the AVT "
"of attribute '%s'.\n",
attr->name);
}
text->content = xmlStrdup(BAD_CAST "");
} else {
text->content = val;
}
} else if ((ctxt->internalized) && (target != NULL) &&
(target->doc != NULL) &&
(target->doc->dict == ctxt->dict) &&
xmlDictOwns(ctxt->dict, value)) {
text->content = (xmlChar *) value;
} else {
text->content = xmlStrdup(value);
}
}
} else {
if (attr->ns) {
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: Failed to create attribute '{%s}%s'.\n",
attr->ns->href, attr->name);
} else {
xsltTransformError(ctxt, NULL, attr->parent,
"Internal error: Failed to create attribute '%s'.\n",
attr->name);
}
}
return(ret);
}
int
xslDbgShellSetVariable(xsltTransformContextPtr styleCtxt, xmlChar * arg)
{
int result = 0, showUsage = 0;
xmlChar *name, *nameURI, *selectExpr, *opts[3];
if (!styleCtxt) {
xsldbgGenericErrorFunc(i18n("Error: Stylesheet is not valid.\n"));
return result;
}
if (!arg) {
#ifdef WITH_XSLDBG_DEBUG_PROCESS
xsltGenericError(xsltGenericErrorContext,
"Error: NULL argument provided\n");
#endif
return result;
}
if (xmlStrLen(arg) > 1) {
if (splitString(arg, 2, opts) == 2) {
nameURI = NULL;
/* ignore any "$" prefix as user probably didn't mean that
"$" is part of variable name*/
if (*opts[0] =='$'){
opts[0] = opts[0] + 1;
}
name = xmlSplitQName2(opts[0], &nameURI);
if (name == NULL)
name = xmlStrdup(opts[0]);
selectExpr = xmlStrdup(opts[1]);
if (name && selectExpr) {
xsltStackElemPtr def = NULL;
if (styleCtxt->varsNr && styleCtxt->varsTab) {
/* try finding varaible in stack */
for (int i = styleCtxt->varsNr; i > styleCtxt->varsBase; i--) {
xsltStackElemPtr item = styleCtxt->varsTab[i-1];
while (item) {
if ((xmlStrCmp(name, item->name) == 0) &&
(item->nameURI == NULL
|| (xmlStrCmp(name, item->nameURI) == 0))) {
def = item;
break;
}
item = item->next;
}
}
}
if (def == NULL)
def = (xsltStackElemPtr)
xmlHashLookup2(styleCtxt->globalVars,
name, nameURI);
if (def != NULL) {
if (def->select) {
def->select = xmlDictLookup(styleCtxt->dict, selectExpr, -1);
def->tree = NULL; /* maybe a memory leak, but play it safe */
def->computed = 1;
if (def->comp->comp)
xmlXPathFreeCompExpr(def->comp->comp);
def->comp->comp = xmlXPathCompile(def->select);
if (def->value)
xmlXPathFreeObject(def->value);
def->value =
xmlXPathEval(def->select,
styleCtxt->xpathCtxt);
result = 1;
} else {
xmlFree(selectExpr);
xsldbgGenericErrorFunc(i18n("Error: Cannot change a variable that does not use the select attribute.\n"));
}
} else
xsldbgGenericErrorFunc(i18n("Error: Variable %1 was not found.\n").arg(xsldbgText(name)));
xmlFree(name);
} else
xsldbgGenericErrorFunc(i18n("Error: Out of memory.\n"));
} else {
showUsage = 1;
}
if (showUsage == 1)
xsldbgGenericErrorFunc(i18n("Error: Invalid arguments to command %1.\n").arg("set"));
}
return result;
}
/*
* Test a single dictionary
*/
static int run_test1(void) {
int i, j;
xmlDictPtr dict;
int ret = 0;
xmlChar prefix[40];
xmlChar *cur, *pref;
const xmlChar *tmp;
dict = xmlDictCreate();
if (dict == NULL) {
fprintf(stderr, "Out of memory while creating dictionary\n");
exit(1);
}
memset(test1, 0, sizeof(test1));
/*
* Fill in NB_STRINGS_MIN, at this point the dictionary should not grow
* and we allocate all those doing the fast key computations
*/
for (i = 0;i < NB_STRINGS_MIN;i++) {
test1[i] = xmlDictLookup(dict, strings1[i], -1);
if (test1[i] == NULL) {
fprintf(stderr, "Failed lookup for '%s'\n", strings1[i]);
ret = 1;
nbErrors++;
}
}
j = NB_STRINGS_MAX - NB_STRINGS_NS;
/* ":foo" like strings1 */
for (i = 0;i < NB_STRINGS_MIN;i++, j++) {
test1[j] = xmlDictLookup(dict, strings1[j], xmlStrlen(strings1[j]));
if (test1[j] == NULL) {
fprintf(stderr, "Failed lookup for '%s'\n", strings1[j]);
ret = 1;
nbErrors++;
}
}
/* "a:foo" like strings1 */
j = NB_STRINGS_MAX - NB_STRINGS_MIN;
for (i = 0;i < NB_STRINGS_MIN;i++, j++) {
test1[j] = xmlDictLookup(dict, strings1[j], xmlStrlen(strings1[j]));
if (test1[j] == NULL) {
fprintf(stderr, "Failed lookup for '%s'\n", strings1[j]);
ret = 1;
nbErrors++;
}
}
/*
* At this point allocate all the strings
* the dictionary will grow in the process, reallocate more string tables
* and switch to the better key generator
*/
for (i = 0;i < NB_STRINGS_MAX;i++) {
if (test1[i] != NULL)
continue;
test1[i] = xmlDictLookup(dict, strings1[i], -1);
if (test1[i] == NULL) {
fprintf(stderr, "Failed lookup for '%s'\n", strings1[i]);
ret = 1;
nbErrors++;
}
}
/*
* Now we can start to test things, first that all strings1 belongs to
* the dict
*/
for (i = 0;i < NB_STRINGS_MAX;i++) {
if (!xmlDictOwns(dict, test1[i])) {
fprintf(stderr, "Failed ownership failure for '%s'\n",
strings1[i]);
ret = 1;
nbErrors++;
}
}
/*
* Then that another lookup to the string will return the same
*/
for (i = 0;i < NB_STRINGS_MAX;i++) {
if (xmlDictLookup(dict, strings1[i], -1) != test1[i]) {
fprintf(stderr, "Failed re-lookup check for %d, '%s'\n",
i, strings1[i]);
ret = 1;
nbErrors++;
}
}
/*
* More complex, check the QName lookups
*/
for (i = NB_STRINGS_MAX - NB_STRINGS_NS;i < NB_STRINGS_MAX;i++) {
cur = strings1[i];
pref = &prefix[0];
while (*cur != ':') *pref++ = *cur++;
cur++;
*pref = 0;
tmp = xmlDictQLookup(dict, &prefix[0], cur);
if (tmp != test1[i]) {
fprintf(stderr, "Failed lookup check for '%s':'%s'\n",
&prefix[0], cur);
ret = 1;
nbErrors++;
}
}
run_test2(dict);
xmlDictFree(dict);
return(ret);
}
/*
* This tests the sub-dictionary support
*/
static int run_test2(xmlDictPtr parent) {
int i, j;
xmlDictPtr dict;
int ret = 0;
xmlChar prefix[40];
xmlChar *cur, *pref;
const xmlChar *tmp;
dict = xmlDictCreateSub(parent);
if (dict == NULL) {
fprintf(stderr, "Out of memory while creating sub-dictionary\n");
exit(1);
}
memset(test2, 0, sizeof(test2));
/*
* Fill in NB_STRINGS_MIN, at this point the dictionary should not grow
* and we allocate all those doing the fast key computations
* All the strings are based on a different seeds subset so we know
* they are allocated in the main dictionary, not coming from the parent
*/
for (i = 0;i < NB_STRINGS_MIN;i++) {
test2[i] = xmlDictLookup(dict, strings2[i], -1);
if (test2[i] == NULL) {
fprintf(stderr, "Failed lookup for '%s'\n", strings2[i]);
ret = 1;
nbErrors++;
}
}
j = NB_STRINGS_MAX - NB_STRINGS_NS;
/* ":foo" like strings2 */
for (i = 0;i < NB_STRINGS_MIN;i++, j++) {
test2[j] = xmlDictLookup(dict, strings2[j], xmlStrlen(strings2[j]));
if (test2[j] == NULL) {
fprintf(stderr, "Failed lookup for '%s'\n", strings2[j]);
ret = 1;
nbErrors++;
}
}
/* "a:foo" like strings2 */
j = NB_STRINGS_MAX - NB_STRINGS_MIN;
for (i = 0;i < NB_STRINGS_MIN;i++, j++) {
test2[j] = xmlDictLookup(dict, strings2[j], xmlStrlen(strings2[j]));
if (test2[j] == NULL) {
fprintf(stderr, "Failed lookup for '%s'\n", strings2[j]);
ret = 1;
nbErrors++;
}
}
/*
* At this point allocate all the strings
* the dictionary will grow in the process, reallocate more string tables
* and switch to the better key generator
*/
for (i = 0;i < NB_STRINGS_MAX;i++) {
if (test2[i] != NULL)
continue;
test2[i] = xmlDictLookup(dict, strings2[i], -1);
if (test2[i] == NULL) {
fprintf(stderr, "Failed lookup for '%s'\n", strings2[i]);
ret = 1;
nbErrors++;
}
}
/*
* Now we can start to test things, first that all strings2 belongs to
* the dict, and that none of them was actually allocated in the parent
*/
for (i = 0;i < NB_STRINGS_MAX;i++) {
if (!xmlDictOwns(dict, test2[i])) {
fprintf(stderr, "Failed ownership failure for '%s'\n",
strings2[i]);
ret = 1;
nbErrors++;
}
if (xmlDictOwns(parent, test2[i])) {
fprintf(stderr, "Failed parent ownership failure for '%s'\n",
strings2[i]);
ret = 1;
nbErrors++;
}
}
/*
* Also verify that all strings from the parent are seen from the subdict
*/
for (i = 0;i < NB_STRINGS_MAX;i++) {
if (!xmlDictOwns(dict, test1[i])) {
fprintf(stderr, "Failed sub-ownership failure for '%s'\n",
strings1[i]);
ret = 1;
nbErrors++;
}
}
/*
* Then that another lookup to the string in sub will return the same
*/
for (i = 0;i < NB_STRINGS_MAX;i++) {
if (xmlDictLookup(dict, strings2[i], -1) != test2[i]) {
fprintf(stderr, "Failed re-lookup check for %d, '%s'\n",
i, strings2[i]);
ret = 1;
nbErrors++;
}
}
/*
* But also that any lookup for a string in the parent will be provided
* as in the parent
*/
for (i = 0;i < NB_STRINGS_MAX;i++) {
if (xmlDictLookup(dict, strings1[i], -1) != test1[i]) {
fprintf(stderr, "Failed parent string lookup check for %d, '%s'\n",
i, strings1[i]);
ret = 1;
nbErrors++;
}
}
/*
* check the QName lookups
*/
for (i = NB_STRINGS_MAX - NB_STRINGS_NS;i < NB_STRINGS_MAX;i++) {
cur = strings2[i];
pref = &prefix[0];
while (*cur != ':') *pref++ = *cur++;
cur++;
*pref = 0;
tmp = xmlDictQLookup(dict, &prefix[0], cur);
if (tmp != test2[i]) {
fprintf(stderr, "Failed lookup check for '%s':'%s'\n",
&prefix[0], cur);
ret = 1;
nbErrors++;
}
}
/*
* check the QName lookups for strings from the parent
*/
for (i = NB_STRINGS_MAX - NB_STRINGS_NS;i < NB_STRINGS_MAX;i++) {
cur = strings1[i];
pref = &prefix[0];
while (*cur != ':') *pref++ = *cur++;
cur++;
*pref = 0;
tmp = xmlDictQLookup(dict, &prefix[0], cur);
if (xmlDictQLookup(dict, &prefix[0], cur) != test1[i]) {
fprintf(stderr, "Failed parent lookup check for '%s':'%s'\n",
&prefix[0], cur);
ret = 1;
nbErrors++;
}
}
xmlDictFree(dict);
return(ret);
}
/**
* xsltAttributeInternal:
* @ctxt: a XSLT process context
* @node: the node in the source tree.
* @inst: the xsl:attribute element
* @comp: precomputed information
* @fromAttributeSet: the attribute comes from an attribute-set
*
* Process the xslt attribute node on the source node
*/
static void
xsltAttributeInternal(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst,
xsltStylePreCompPtr castedComp,
int fromAttributeSet) {
#ifdef XSLT_REFACTORED
xsltStyleItemAttributePtr comp =
(xsltStyleItemAttributePtr) castedComp;
/*
* TODO: Change the fields of the compiled struct:
* 1) @name (char)
* 2) @nameType (String, AVT)
* 3) @nsName (char)
* 4) nsNameType (None, String, AVT)
*/
#else
xsltStylePreCompPtr comp = castedComp;
#endif
xmlNodePtr targetElem;
xmlChar *prop = NULL;
const xmlChar *name = NULL, *prefix = NULL, *nsName = NULL;
xmlChar *value = NULL;
xmlNsPtr ns = NULL;
xmlAttrPtr attr;
if ((ctxt == NULL) || (node == NULL) || (inst == NULL))
return;
/*
* BIG NOTE: This previously used xsltGetSpecialNamespace() and
* xsltGetNamespace(), but since both are not appropriate, we
* will process namespace lookup here to avoid adding yet another
* ns-lookup function to namespaces.c.
*/
/*
* SPEC XSLT 1.0: Error cases:
* - Creating nodes other than text nodes during the instantiation of
* the content of the xsl:attribute element; implementations may
* either signal the error or ignore the offending nodes."
*/
if (comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltAttributeInternal(): "
"The instruction was no compiled.\n");
return;
}
/*
* TODO: Shouldn't ctxt->insert == NULL be treated as an internal error?
* So report an internal error?
*/
if (ctxt->insert == NULL)
return;
/*
* SPEC XSLT 1.0:
* "Adding an attribute to a node that is not an element;
* implementations may either signal the error or ignore the attribute."
*
* TODO: I think we should signal such errors in the future, and maybe
* provide an option to ignore such errors.
*/
targetElem = ctxt->insert;
if (targetElem->type != XML_ELEMENT_NODE)
return;
/*
* SPEC XSLT 1.0:
* "Adding an attribute to an element after children have been added
* to it; implementations may either signal the error or ignore the
* attribute."
*
* TODO: We should decide whether not to report such errors or
* to ignore them; note that we *ignore* if the parent is not an
* element, but here we report an error.
*/
if (targetElem->children != NULL) {
/*
* NOTE: Ah! This seems to be intended to support streamed
* result generation!.
*/
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: Cannot add attributes to an "
"element if children have been already added "
"to the element.\n");
return;
}
/*
* Process the name
* ----------------
*/
if (!comp->has_name) /* TODO: raise error */
return;
#ifdef WITH_DEBUGGER
if (ctxt->debugStatus != XSLT_DEBUG_NONE)
xslHandleDebugger(inst, node, NULL, ctxt);
#endif
if (comp->name == NULL) {
/* TODO: fix attr acquisition wrt to the XSLT namespace */
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "name", XSLT_NAMESPACE);
if (prop == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: The attribute 'name' is missing.\n");
goto error;
}
if (xmlValidateQName(prop, 0)) {
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: The effective name '%s' is not a "
"valid QName.\n", prop);
/* we fall through to catch any further errors, if possible */
}
name = xsltSplitQName(ctxt->dict, prop, &prefix);
xmlFree(prop);
} else {
name = xsltSplitQName(ctxt->dict, comp->name, &prefix);
}
if (!xmlStrncasecmp(prefix, (xmlChar *) "xmlns", 5)) {
#ifdef WITH_XSLT_DEBUG_PARSING
xsltGenericDebug(xsltGenericDebugContext,
"xsltAttribute: xmlns prefix forbidden\n");
#endif
/*
* SPEC XSLT 1.0:
* "It is an error if the string that results from instantiating
* the attribute value template is not a QName or is the string
* xmlns. An XSLT processor may signal the error; if it does not
* signal the error, it must recover by not adding the attribute
* to the result tree."
* TODO: Decide which way to go here.
*/
goto error;
}
/*
* Process namespace semantics
* ---------------------------
*
* Evaluate the namespace name.
*/
if (comp->has_ns) {
if (comp->ns != NULL) {
if (comp->ns[0] != 0)
nsName = comp->ns;
} else {
xmlChar *tmpNsName;
/*
* Eval the AVT.
*/
/* TODO: check attr acquisition wrt to the XSLT namespace */
tmpNsName = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "namespace", XSLT_NAMESPACE);
/*
* This fixes bug #302020: The AVT might also evaluate to the
* empty string; this means that the empty string also indicates
* "no namespace".
* SPEC XSLT 1.0:
* "If the string is empty, then the expanded-name of the
* attribute has a null namespace URI."
*/
if ((tmpNsName != NULL) && (tmpNsName[0] != 0))
nsName = xmlDictLookup(ctxt->dict, BAD_CAST tmpNsName, -1);
xmlFree(tmpNsName);
};
} else if (prefix != NULL) {
/*
* SPEC XSLT 1.0:
* "If the namespace attribute is not present, then the QName is
* expanded into an expanded-name using the namespace declarations
* in effect for the xsl:attribute element, *not* including any
* default namespace declaration."
*/
ns = xmlSearchNs(inst->doc, inst, prefix);
if (ns == NULL) {
/*
* Note that this is treated as an error now (checked with
* Saxon, Xalan-J and MSXML).
*/
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: The effective prefix '%s', has no "
"namespace binding in scope in the stylesheet; "
"this is an error, since the namespace was not "
"specified by the instruction itself.\n", prefix);
} else
nsName = ns->href;
}
if (fromAttributeSet) {
/*
* I think this tries to ensure that xsl:attribute(s) coming
* from an xsl:attribute-set won't override attribute of
* literal result elements or of explicit xsl:attribute(s).
*/
attr = xmlHasNsProp(targetElem, name, nsName);
if (attr != NULL)
return;
}
/*
* Something about ns-prefixes:
* SPEC XSLT 1.0:
* "XSLT processors may make use of the prefix of the QName specified
* in the name attribute when selecting the prefix used for outputting
* the created attribute as XML; however, they are not required to do
* so and, if the prefix is xmlns, they must not do so"
*/
/*
* Find/create a matching ns-decl in the result tree.
*/
ns = NULL;
#if 0
if (0) {
/*
* OPTIMIZE TODO: How do we know if we are adding to a
* fragment or not?
*
* If we are adding to a result tree fragment (i.e., not to the
* actual result tree), we'll don't bother searching for the
* ns-decl, but just store it in the dummy-doc of the result
* tree fragment.
*/
if (nsName != NULL) {
ns = xsltTreeAcquireStoredNs(ctxt->document->doc, nsName,
prefix);
}
}
#endif
if (nsName != NULL) {
/*
* The owner-element might be in the same namespace.
*/
if ((targetElem->ns != NULL) &&
(targetElem->ns->prefix != NULL) &&
xmlStrEqual(targetElem->ns->href, nsName))
{
ns = targetElem->ns;
goto namespace_finished;
}
if (prefix != NULL) {
/*
* Search by ns-prefix.
*/
ns = xmlSearchNs(targetElem->doc, targetElem, prefix);
if ((ns != NULL) && (xmlStrEqual(ns->href, nsName))) {
goto namespace_finished;
}
}
/*
* Fallback to a search by ns-name.
*/
ns = xmlSearchNsByHref(targetElem->doc, targetElem, nsName);
if ((ns != NULL) && (ns->prefix != NULL)) {
goto namespace_finished;
}
/*
* OK, we need to declare the namespace on the target element.
*/
if (prefix) {
if (targetElem->nsDef != NULL) {
ns = targetElem->nsDef;
do {
if ((ns->prefix) && xmlStrEqual(ns->prefix, prefix)) {
/*
* The prefix is aready occupied.
*/
break;
}
ns = ns->next;
} while (ns != NULL);
if (ns == NULL) {
ns = xmlNewNs(targetElem, nsName, prefix);
goto namespace_finished;
}
}
}
/*
* Generate a new prefix.
*/
{
const xmlChar *basepref = prefix;
xmlChar pref[30];
int counter = 1;
if (prefix != NULL)
basepref = prefix;
else
basepref = xmlStrdup(BAD_CAST "ns");
do {
snprintf((char *) pref, 30, "%s%d",
basepref, counter++);
ns = xmlSearchNs(targetElem->doc, targetElem, BAD_CAST pref);
if (counter > 1000) {
xsltTransformError(ctxt, NULL, inst,
"Namespace fixup error: Failed to compute a "
"new unique ns-prefix for the generated attribute "
"{%s}%s'.\n", nsName, name);
ns = NULL;
break;
}
} while (ns != NULL);
if (basepref != prefix)
xmlFree((xmlChar *)basepref);
ns = xmlNewNs(targetElem, nsName, BAD_CAST pref);
}
namespace_finished:
if (ns == NULL) {
xsltTransformError(ctxt, NULL, inst,
"Namespace fixup error: Failed to acquire an in-scope "
"namespace binding of the generated attribute '{%s}%s'.\n",
nsName, name);
/*
* TODO: Should we just stop here?
*/
}
}
/*
* Construction of the value
* -------------------------
*/
if (inst->children == NULL) {
/*
* No content.
* TODO: Do we need to put the empty string in ?
*/
attr = xmlSetNsProp(ctxt->insert, ns, name, (const xmlChar *) "");
} else if ((inst->children->next == NULL) &&
((inst->children->type == XML_TEXT_NODE) ||
(inst->children->type == XML_CDATA_SECTION_NODE)))
{
xmlNodePtr origTxt = inst->children, copyTxt;
/*
* Optimization: if the content is just 1 text node, then
* just need to copy it over, or just assign it to the result
* if the string is shared.
*/
attr = xmlSetNsProp(ctxt->insert, ns, name, NULL);
if (attr == NULL) /* TODO: report error ? */
goto error;
/*
* This was taken over from xsltCopyText() (transform.c).
*/
if (ctxt->internalized &&
(ctxt->insert->doc != NULL) &&
(ctxt->insert->doc->dict == ctxt->dict))
{
copyTxt = xmlNewText(NULL);
if (copyTxt == NULL) /* TODO: report error */
goto error;
/*
* This is a safe scenario where we don't need to lookup
* the dict.
*/
copyTxt->content = origTxt->content;
/*
* Copy "disable-output-escaping" information.
* TODO: Does this have any effect for attribute values
* anyway?
*/
if (origTxt->name == xmlStringTextNoenc)
copyTxt->name = xmlStringTextNoenc;
} else {
/*
* Copy the value.
*/
copyTxt = xmlNewText(origTxt->content);
if (copyTxt == NULL) /* TODO: report error */
goto error;
/*
* Copy "disable-output-escaping" information.
* TODO: Does this have any effect for attribute values
* anyway?
*/
if (origTxt->name == xmlStringTextNoenc)
copyTxt->name = xmlStringTextNoenc;
}
if (copyTxt != NULL) {
copyTxt->doc = attr->doc;
xmlAddChild((xmlNodePtr) attr, copyTxt);
}
} else {
/*
* The sequence constructor might be complex, so instantiate it.
*/
value = xsltEvalTemplateString(ctxt, node, inst);
if (value != NULL) {
attr = xmlSetNsProp(ctxt->insert, ns, name, value);
xmlFree(value);
} else {
/*
* TODO: Do we have to add the empty string to the attr?
*/
attr = xmlSetNsProp(ctxt->insert, ns, name,
(const xmlChar *) "");
}
}
error:
return;
}
/**
* xsltApplyAttributeSet:
* @ctxt: the XSLT stylesheet
* @node: the node in the source tree.
* @inst: the attribute node "xsl:use-attribute-sets"
* @attrSets: the list of QNames of the attribute-sets to be applied
*
* Apply the xsl:use-attribute-sets.
* If @attrSets is NULL, then @inst will be used to exctract this
* value.
* If both, @attrSets and @inst, are NULL, then this will do nothing.
*/
void
xsltApplyAttributeSet(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst,
const xmlChar *attrSets)
{
const xmlChar *ncname = NULL;
const xmlChar *prefix = NULL;
const xmlChar *curstr, *endstr;
xsltAttrSetPtr set;
xsltStylesheetPtr style;
if (attrSets == NULL) {
if (inst == NULL)
return;
else {
/*
* Extract the value from @inst.
*/
if (inst->type == XML_ATTRIBUTE_NODE) {
if ( ((xmlAttrPtr) inst)->children != NULL)
attrSets = ((xmlAttrPtr) inst)->children->content;
}
if (attrSets == NULL) {
/*
* TODO: Return an error?
*/
return;
}
}
}
/*
* Parse/apply the list of QNames.
*/
curstr = attrSets;
while (*curstr != 0) {
while (IS_BLANK(*curstr))
curstr++;
if (*curstr == 0)
break;
endstr = curstr;
while ((*endstr != 0) && (!IS_BLANK(*endstr)))
endstr++;
curstr = xmlDictLookup(ctxt->dict, curstr, endstr - curstr);
if (curstr) {
xmlNsPtr ns;
const xmlChar *nsUri = NULL;
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"apply attribute set %s\n", curstr);
#endif
if (xmlValidateQName(curstr, 0)) {
xsltTransformError(ctxt, NULL, inst,
"The name '%s' in use-attribute-sets is not a valid "
"QName.\n", curstr);
return;
}
ncname = xsltSplitQName(ctxt->dict, curstr, &prefix);
if (prefix != NULL) {
ns = xmlSearchNs(inst->doc, inst, prefix);
if (ns == NULL) {
xsltTransformError(ctxt, NULL, inst,
"use-attribute-set : No namespace found for QName "
"'%s:%s'\n", prefix, ncname);
return;
}
nsUri = ns->href;
}
style = ctxt->style;
#ifdef WITH_DEBUGGER
if ((style != NULL) &&
(style->attributeSets != NULL) &&
(ctxt->debugStatus != XSLT_DEBUG_NONE))
{
set = xmlHashLookup2(style->attributeSets, ncname, nsUri);
if ((set != NULL) && (set->attrs != NULL) &&
(set->attrs->attr != NULL))
xslHandleDebugger(set->attrs->attr->parent, node, NULL,
ctxt);
}
#endif
/*
* Lookup the referenced attribute-set. All attribute sets were
* moved to the top stylesheet so there's no need to iterate
* imported stylesheets
*/
set = xmlHashLookup2(style->attributeSets, ncname, nsUri);
if (set != NULL) {
xsltAttrElemPtr cur = set->attrs;
while (cur != NULL) {
if (cur->attr != NULL) {
xsltAttribute(ctxt, node, cur->attr,
cur->attr->psvi);
}
cur = cur->next;
}
}
}
curstr = endstr;
}
}
void
xsltParseStylesheetAttributeSet(xsltStylesheetPtr style, xmlNodePtr cur) {
const xmlChar *ncname;
const xmlChar *prefix;
xmlChar *value;
xmlNodePtr child;
xsltAttrElemPtr attrItems;
if ((cur == NULL) || (style == NULL) || (cur->type != XML_ELEMENT_NODE))
return;
value = xmlGetNsProp(cur, (const xmlChar *)"name", NULL);
if ((value == NULL) || (*value == 0)) {
xsltGenericError(xsltGenericErrorContext,
"xsl:attribute-set : name is missing\n");
if (value)
xmlFree(value);
return;
}
ncname = xsltSplitQName(style->dict, value, &prefix);
xmlFree(value);
value = NULL;
if (style->attributeSets == NULL) {
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"creating attribute set table\n");
#endif
style->attributeSets = xmlHashCreate(10);
}
if (style->attributeSets == NULL)
return;
attrItems = xmlHashLookup2(style->attributeSets, ncname, prefix);
/*
* Parse the content. Only xsl:attribute elements are allowed.
*/
child = cur->children;
while (child != NULL) {
/*
* Report invalid nodes.
*/
if ((child->type != XML_ELEMENT_NODE) ||
(child->ns == NULL) ||
(! IS_XSLT_ELEM(child)))
{
if (child->type == XML_ELEMENT_NODE)
xsltTransformError(NULL, style, child,
"xsl:attribute-set : unexpected child %s\n",
child->name);
else
xsltTransformError(NULL, style, child,
"xsl:attribute-set : child of unexpected type\n");
} else if (!IS_XSLT_NAME(child, "attribute")) {
xsltTransformError(NULL, style, child,
"xsl:attribute-set : unexpected child xsl:%s\n",
child->name);
} else {
#ifdef XSLT_REFACTORED
xsltAttrElemPtr nextAttr, curAttr;
/*
* Process xsl:attribute
* ---------------------
*/
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"add attribute to list %s\n", ncname);
#endif
/*
* The following was taken over from
* xsltAddAttrElemList().
*/
if (attrItems == NULL) {
attrItems = xsltNewAttrElem(child);
} else {
curAttr = attrItems;
while (curAttr != NULL) {
nextAttr = curAttr->next;
if (curAttr->attr == child) {
/*
* URGENT TODO: Can somebody explain
* why attrItems is set to curAttr
* here? Is this somehow related to
* avoidance of recursions?
*/
attrItems = curAttr;
goto next_child;
}
if (curAttr->next == NULL)
curAttr->next = xsltNewAttrElem(child);
curAttr = nextAttr;
}
}
/*
* Parse the xsl:attribute and its content.
*/
xsltParseAnyXSLTElem(XSLT_CCTXT(style), child);
#else
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"add attribute to list %s\n", ncname);
#endif
/*
* OLD behaviour:
*/
attrItems = xsltAddAttrElemList(attrItems, child);
#endif
}
#ifdef XSLT_REFACTORED
next_child:
#endif
child = child->next;
}
/*
* Process attribue "use-attribute-sets".
*/
/* TODO check recursion */
value = xmlGetNsProp(cur, (const xmlChar *)"use-attribute-sets",
NULL);
if (value != NULL) {
const xmlChar *curval, *endval;
curval = value;
while (*curval != 0) {
while (IS_BLANK(*curval)) curval++;
if (*curval == 0)
break;
endval = curval;
while ((*endval != 0) && (!IS_BLANK(*endval))) endval++;
curval = xmlDictLookup(style->dict, curval, endval - curval);
if (curval) {
const xmlChar *ncname2 = NULL;
const xmlChar *prefix2 = NULL;
xsltAttrElemPtr refAttrItems;
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"xsl:attribute-set : %s adds use %s\n", ncname, curval);
#endif
ncname2 = xsltSplitQName(style->dict, curval, &prefix2);
refAttrItems = xsltNewAttrElem(NULL);
if (refAttrItems != NULL) {
refAttrItems->set = ncname2;
refAttrItems->ns = prefix2;
attrItems = xsltMergeAttrElemList(style,
attrItems, refAttrItems);
xsltFreeAttrElem(refAttrItems);
}
}
curval = endval;
}
xmlFree(value);
value = NULL;
}
/*
* Update the value
*/
/*
* TODO: Why is this dummy entry needed.?
*/
if (attrItems == NULL)
attrItems = xsltNewAttrElem(NULL);
xmlHashUpdateEntry2(style->attributeSets, ncname, prefix, attrItems, NULL);
#ifdef WITH_XSLT_DEBUG_ATTRIBUTES
xsltGenericDebug(xsltGenericDebugContext,
"updated attribute list %s\n", ncname);
#endif
}
/**
* xsltMergeAttrElemList:
* @list: an XSLT AttrElem list
* @old: another XSLT AttrElem list
*
* Add all the attributes from list @old to list @list,
* but drop redefinition of existing values.
*
* Returns the new list pointer
*/
static xsltAttrElemPtr
xsltMergeAttrElemList(xsltStylesheetPtr style,
xsltAttrElemPtr list, xsltAttrElemPtr old) {
xsltAttrElemPtr cur;
int add;
while (old != NULL) {
if ((old->attr == NULL) && (old->set == NULL)) {
old = old->next;
continue;
}
/*
* Check that the attribute is not yet in the list
*/
cur = list;
add = 1;
while (cur != NULL) {
if ((cur->attr == NULL) && (cur->set == NULL)) {
if (cur->next == NULL)
break;
cur = cur->next;
continue;
}
if ((cur->set != NULL) && (cur->set == old->set)) {
add = 0;
break;
}
if (cur->set != NULL) {
if (cur->next == NULL)
break;
cur = cur->next;
continue;
}
if (old->set != NULL) {
if (cur->next == NULL)
break;
cur = cur->next;
continue;
}
if (cur->attr == old->attr) {
xsltGenericError(xsltGenericErrorContext,
"xsl:attribute-set : use-attribute-sets recursion detected\n");
return(list);
}
if (cur->next == NULL)
break;
cur = cur->next;
}
if (add == 1) {
/*
* Changed to use the string-dict, rather than duplicating
* @set and @ns; this fixes bug #340400.
*/
if (cur == NULL) {
list = xsltNewAttrElem(old->attr);
if (old->set != NULL) {
list->set = xmlDictLookup(style->dict, old->set, -1);
if (old->ns != NULL)
list->ns = xmlDictLookup(style->dict, old->ns, -1);
}
} else if (add) {
cur->next = xsltNewAttrElem(old->attr);
if (old->set != NULL) {
cur->next->set = xmlDictLookup(style->dict, old->set, -1);
if (old->ns != NULL)
cur->next->ns = xmlDictLookup(style->dict, old->ns, -1);
}
}
}
old = old->next;
}
return(list);
}
/**
* xsltApplyAttributeSet:
* @ctxt: the XSLT stylesheet
* @node: the node in the source tree.
* @inst: the attribute node "xsl:use-attribute-sets"
* @attrSets: the list of QNames of the attribute-sets to be applied
*
* Apply the xsl:use-attribute-sets.
* If @attrSets is NULL, then @inst will be used to exctract this
* value.
* If both, @attrSets and @inst, are NULL, then this will do nothing.
*/
void
xsltApplyAttributeSet(xsltTransformContextPtr ctxt, xmlNodePtr node,
xmlNodePtr inst,
const xmlChar *attrSets)
{
const xmlChar *ncname = NULL;
const xmlChar *prefix = NULL;
const xmlChar *curstr, *endstr;
xsltAttrElemPtr attrs;
xsltStylesheetPtr style;
if (attrSets == NULL) {
if (inst == NULL)
return;
else {
/*
* Extract the value from @inst.
*/
if (inst->type == XML_ATTRIBUTE_NODE) {
if ( ((xmlAttrPtr) inst)->children != NULL)
attrSets = ((xmlAttrPtr) inst)->children->content;
}
if (attrSets == NULL) {
/*
* TODO: Return an error?
*/
return;
}
}
}
/*
* Parse/apply the list of QNames.
*/
curstr = attrSets;
while (*curstr != 0) {
while (IS_BLANK(*curstr))
curstr++;
if (*curstr == 0)
break;
endstr = curstr;
while ((*endstr != 0) && (!IS_BLANK(*endstr)))
endstr++;
curstr = xmlDictLookup(ctxt->dict, curstr, endstr - curstr);
if (curstr) {
/*
* TODO: Validate the QName.
*/
#ifdef WITH_XSLT_DEBUG_curstrUTES
xsltGenericDebug(xsltGenericDebugContext,
"apply curstrute set %s\n", curstr);
#endif
ncname = xsltSplitQName(ctxt->dict, curstr, &prefix);
style = ctxt->style;
#ifdef WITH_DEBUGGER
if ((style != NULL) &&
(style->attributeSets != NULL) &&
(ctxt->debugStatus != XSLT_DEBUG_NONE))
{
attrs =
xmlHashLookup2(style->attributeSets, ncname, prefix);
if ((attrs != NULL) && (attrs->attr != NULL))
xslHandleDebugger(attrs->attr->parent, node, NULL,
ctxt);
}
#endif
/*
* Lookup the referenced curstrute-set.
*/
while (style != NULL) {
attrs =
xmlHashLookup2(style->attributeSets, ncname, prefix);
while (attrs != NULL) {
if (attrs->attr != NULL) {
xsltAttributeInternal(ctxt, node, attrs->attr,
attrs->attr->psvi, 1);
}
attrs = attrs->next;
}
style = xsltNextImport(style);
}
}
curstr = endstr;
}
}
/**
* xsltAttrTemplateProcess:
* @ctxt: the XSLT transformation context
* @target: the result node
* @cur: the attribute template node
*
* Process the given attribute and return the new processed copy.
*
* Returns the attribute replacement.
*/
xmlAttrPtr
xsltAttrTemplateProcess(xsltTransformContextPtr ctxt, xmlNodePtr target,
xmlAttrPtr cur) {
const xmlChar *value;
xmlNsPtr ns;
xmlAttrPtr ret;
if ((ctxt == NULL) || (cur == NULL) || (target == NULL))
return(NULL);
if (cur->type != XML_ATTRIBUTE_NODE)
return(NULL);
if ((cur->children == NULL) || (cur->children->type != XML_TEXT_NODE) ||
(cur->children->next != NULL)) {
xsltTransformError(ctxt, NULL, cur->parent,
"attribute %s content problem\n", cur->name);
return(NULL);
}
value = cur->children->content;
if (value == NULL)
value = xmlDictLookup(ctxt->dict, BAD_CAST "", 0);
if ((cur->ns != NULL) &&
(xmlStrEqual(cur->ns->href, XSLT_NAMESPACE))) {
if (xmlStrEqual(cur->name, (const xmlChar *)"use-attribute-sets")) {
xsltApplyAttributeSet(ctxt, ctxt->node, NULL, value);
}
return(NULL);
}
ret = target->properties;
while (ret != NULL) {
if (xmlStrEqual(ret->name, cur->name)) {
if (cur->ns == NULL) {
if (ret->ns == NULL)
break;
} else {
if ((ret->ns != NULL) &&
(xmlStrEqual(ret->ns->href, cur->ns->href)))
break;
}
}
ret = ret->next;
}
if (ret != NULL) {
/* free the existing value */
xmlFreeNodeList(ret->children);
ret->children = ret->last = NULL;
} else {
/* create a new attribute */
if (cur->ns != NULL)
ns = xsltGetPlainNamespace(ctxt, cur->parent, cur->ns, target);
else
ns = NULL;
ret = xmlNewNsProp(target, ns, cur->name, NULL);
}
if (ret != NULL) {
xmlNodePtr text;
text = xmlNewText(NULL);
if (text != NULL) {
ret->last = ret->children = text;
text->parent = (xmlNodePtr) ret;
text->doc = ret->doc;
if (cur->psvi != NULL) {
xmlChar *val;
val = xsltEvalAVT(ctxt, cur->psvi, cur->parent);
if (val == NULL) {
text->content = xmlStrdup(BAD_CAST "runtime error");
} else {
text->content = val;
}
} else if ((ctxt->internalized) && (target != NULL) &&
(target->doc != NULL) &&
(target->doc->dict == ctxt->dict)) {
text->content = (xmlChar *) value;
} else {
text->content = xmlStrdup(value);
}
}
} else {
xsltTransformError(ctxt, NULL, cur->parent,
"Failed to create attribute %s\n", cur->name);
}
return(ret);
}
/*
* xmlAddEntity : register a new entity for an entities table.
*/
static xmlEntityPtr
xmlAddEntity(xmlDtdPtr dtd, const xmlChar *name, int type,
const xmlChar *ExternalID, const xmlChar *SystemID,
const xmlChar *content) {
xmlDictPtr dict = NULL;
xmlEntitiesTablePtr table = NULL;
xmlEntityPtr ret;
if (name == NULL)
return(NULL);
if (dtd == NULL)
return(NULL);
if (dtd->doc != NULL)
dict = dtd->doc->dict;
switch (type) {
case XML_INTERNAL_GENERAL_ENTITY:
case XML_EXTERNAL_GENERAL_PARSED_ENTITY:
case XML_EXTERNAL_GENERAL_UNPARSED_ENTITY:
if (dtd->entities == NULL)
dtd->entities = xmlHashCreateDict(0, dict);
table = dtd->entities;
break;
case XML_INTERNAL_PARAMETER_ENTITY:
case XML_EXTERNAL_PARAMETER_ENTITY:
if (dtd->pentities == NULL)
dtd->pentities = xmlHashCreateDict(0, dict);
table = dtd->pentities;
break;
case XML_INTERNAL_PREDEFINED_ENTITY:
return(NULL);
}
if (table == NULL)
return(NULL);
ret = (xmlEntityPtr) xmlMalloc(sizeof(xmlEntity));
if (ret == NULL) {
xmlEntitiesErrMemory("xmlAddEntity:: malloc failed");
return(NULL);
}
memset(ret, 0, sizeof(xmlEntity));
ret->type = XML_ENTITY_DECL;
/*
* fill the structure.
*/
ret->etype = (xmlEntityType) type;
if (dict == NULL) {
ret->name = xmlStrdup(name);
if (ExternalID != NULL)
ret->ExternalID = xmlStrdup(ExternalID);
if (SystemID != NULL)
ret->SystemID = xmlStrdup(SystemID);
} else {
ret->name = xmlDictLookup(dict, name, -1);
if (ExternalID != NULL)
ret->ExternalID = xmlDictLookup(dict, ExternalID, -1);
if (SystemID != NULL)
ret->SystemID = xmlDictLookup(dict, SystemID, -1);
}
if (content != NULL) {
ret->length = xmlStrlen(content);
if ((dict != NULL) && (ret->length < 5))
ret->content = (xmlChar *)
xmlDictLookup(dict, content, ret->length);
else
ret->content = xmlStrndup(content, ret->length);
} else {
ret->length = 0;
ret->content = NULL;
}
ret->URI = NULL; /* to be computed by the layer knowing
the defining entity */
ret->orig = NULL;
ret->owner = 0;
ret->doc = dtd->doc;
if (xmlHashAddEntry(table, name, ret)) {
/*
* entity was already defined at another level.
*/
xmlFreeEntity(ret);
return(NULL);
}
return(ret);
}
/**
* xsltAttribute:
* @ctxt: a XSLT process context
* @node: the current node in the source tree
* @inst: the xsl:attribute element
* @comp: precomputed information
*
* Process the xslt attribute node on the source node
*/
void
xsltAttribute(xsltTransformContextPtr ctxt,
xmlNodePtr contextNode,
xmlNodePtr inst,
xsltStylePreCompPtr castedComp)
{
#ifdef XSLT_REFACTORED
xsltStyleItemAttributePtr comp =
(xsltStyleItemAttributePtr) castedComp;
#else
xsltStylePreCompPtr comp = castedComp;
#endif
xmlNodePtr targetElem;
xmlChar *prop = NULL;
const xmlChar *name = NULL, *prefix = NULL, *nsName = NULL;
xmlChar *value = NULL;
xmlNsPtr ns = NULL;
xmlAttrPtr attr;
if ((ctxt == NULL) || (contextNode == NULL) || (inst == NULL) ||
(inst->type != XML_ELEMENT_NODE) )
return;
/*
* A comp->has_name == 0 indicates that we need to skip this instruction,
* since it was evaluated to be invalid already during compilation.
*/
if (!comp->has_name)
return;
/*
* BIG NOTE: This previously used xsltGetSpecialNamespace() and
* xsltGetNamespace(), but since both are not appropriate, we
* will process namespace lookup here to avoid adding yet another
* ns-lookup function to namespaces.c.
*/
/*
* SPEC XSLT 1.0: Error cases:
* - Creating nodes other than text nodes during the instantiation of
* the content of the xsl:attribute element; implementations may
* either signal the error or ignore the offending nodes."
*/
if (comp == NULL) {
xsltTransformError(ctxt, NULL, inst,
"Internal error in xsltAttribute(): "
"The XSLT 'attribute' instruction was not compiled.\n");
return;
}
/*
* TODO: Shouldn't ctxt->insert == NULL be treated as an internal error?
* So report an internal error?
*/
if (ctxt->insert == NULL)
return;
/*
* SPEC XSLT 1.0:
* "Adding an attribute to a node that is not an element;
* implementations may either signal the error or ignore the attribute."
*
* TODO: I think we should signal such errors in the future, and maybe
* provide an option to ignore such errors.
*/
targetElem = ctxt->insert;
if (targetElem->type != XML_ELEMENT_NODE)
return;
/*
* SPEC XSLT 1.0:
* "Adding an attribute to an element after children have been added
* to it; implementations may either signal the error or ignore the
* attribute."
*
* TODO: We should decide whether not to report such errors or
* to ignore them; note that we *ignore* if the parent is not an
* element, but here we report an error.
*/
if (targetElem->children != NULL) {
/*
* NOTE: Ah! This seems to be intended to support streamed
* result generation!.
*/
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: Cannot add attributes to an "
"element if children have been already added "
"to the element.\n");
return;
}
/*
* Process the name
* ----------------
*/
#ifdef WITH_DEBUGGER
if (ctxt->debugStatus != XSLT_DEBUG_NONE)
xslHandleDebugger(inst, contextNode, NULL, ctxt);
#endif
if (comp->name == NULL) {
/* TODO: fix attr acquisition wrt to the XSLT namespace */
prop = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "name", XSLT_NAMESPACE);
if (prop == NULL) {
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: The attribute 'name' is missing.\n");
goto error;
}
if (xmlValidateQName(prop, 0)) {
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: The effective name '%s' is not a "
"valid QName.\n", prop);
/* we fall through to catch any further errors, if possible */
}
/*
* Reject a name of "xmlns".
*/
if (xmlStrEqual(prop, BAD_CAST "xmlns")) {
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: The effective name 'xmlns' is not allowed.\n");
xmlFree(prop);
goto error;
}
name = xsltSplitQName(ctxt->dict, prop, &prefix);
xmlFree(prop);
} else {
/*
* The "name" value was static.
*/
#ifdef XSLT_REFACTORED
prefix = comp->nsPrefix;
name = comp->name;
#else
name = xsltSplitQName(ctxt->dict, comp->name, &prefix);
#endif
}
/*
* Process namespace semantics
* ---------------------------
*
* Evaluate the namespace name.
*/
if (comp->has_ns) {
/*
* The "namespace" attribute was existent.
*/
if (comp->ns != NULL) {
/*
* No AVT; just plain text for the namespace name.
*/
if (comp->ns[0] != 0)
nsName = comp->ns;
} else {
xmlChar *tmpNsName;
/*
* Eval the AVT.
*/
/* TODO: check attr acquisition wrt to the XSLT namespace */
tmpNsName = xsltEvalAttrValueTemplate(ctxt, inst,
(const xmlChar *) "namespace", XSLT_NAMESPACE);
/*
* This fixes bug #302020: The AVT might also evaluate to the
* empty string; this means that the empty string also indicates
* "no namespace".
* SPEC XSLT 1.0:
* "If the string is empty, then the expanded-name of the
* attribute has a null namespace URI."
*/
if ((tmpNsName != NULL) && (tmpNsName[0] != 0))
nsName = xmlDictLookup(ctxt->dict, BAD_CAST tmpNsName, -1);
xmlFree(tmpNsName);
}
if (xmlStrEqual(nsName, BAD_CAST "http://www.w3.org/2000/xmlns/")) {
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: Namespace http://www.w3.org/2000/xmlns/ "
"forbidden.\n");
goto error;
}
if (xmlStrEqual(nsName, XML_XML_NAMESPACE)) {
prefix = BAD_CAST "xml";
} else if (xmlStrEqual(prefix, BAD_CAST "xml")) {
prefix = NULL;
}
} else if (prefix != NULL) {
/*
* SPEC XSLT 1.0:
* "If the namespace attribute is not present, then the QName is
* expanded into an expanded-name using the namespace declarations
* in effect for the xsl:attribute element, *not* including any
* default namespace declaration."
*/
ns = xmlSearchNs(inst->doc, inst, prefix);
if (ns == NULL) {
/*
* Note that this is treated as an error now (checked with
* Saxon, Xalan-J and MSXML).
*/
xsltTransformError(ctxt, NULL, inst,
"xsl:attribute: The QName '%s:%s' has no "
"namespace binding in scope in the stylesheet; "
"this is an error, since the namespace was not "
"specified by the instruction itself.\n", prefix, name);
} else
nsName = ns->href;
}
/*
* Find/create a matching ns-decl in the result tree.
*/
ns = NULL;
#if 0
if (0) {
/*
* OPTIMIZE TODO: How do we know if we are adding to a
* fragment or to the result tree?
*
* If we are adding to a result tree fragment (i.e., not to the
* actual result tree), we'll don't bother searching for the
* ns-decl, but just store it in the dummy-doc of the result
* tree fragment.
*/
if (nsName != NULL) {
/*
* TODO: Get the doc of @targetElem.
*/
ns = xsltTreeAcquireStoredNs(some doc, nsName, prefix);
}
}
#endif
if (nsName != NULL) {
/*
* Something about ns-prefixes:
* SPEC XSLT 1.0:
* "XSLT processors may make use of the prefix of the QName specified
* in the name attribute when selecting the prefix used for outputting
* the created attribute as XML; however, they are not required to do
* so and, if the prefix is xmlns, they must not do so"
*/
/*
* xsl:attribute can produce a scenario where the prefix is NULL,
* so generate a prefix.
*/
if ((prefix == NULL) || xmlStrEqual(prefix, BAD_CAST "xmlns")) {
xmlChar *pref = xmlStrdup(BAD_CAST "ns_1");
ns = xsltGetSpecialNamespace(ctxt, inst, nsName, pref, targetElem);
xmlFree(pref);
} else {
ns = xsltGetSpecialNamespace(ctxt, inst, nsName, prefix,
targetElem);
}
if (ns == NULL) {
xsltTransformError(ctxt, NULL, inst,
"Namespace fixup error: Failed to acquire an in-scope "
"namespace binding for the generated attribute '{%s}%s'.\n",
nsName, name);
goto error;
}
}
/*
* Construction of the value
* -------------------------
*/
if (inst->children == NULL) {
/*
* No content.
* TODO: Do we need to put the empty string in ?
*/
attr = xmlSetNsProp(ctxt->insert, ns, name, (const xmlChar *) "");
} else if ((inst->children->next == NULL) &&
((inst->children->type == XML_TEXT_NODE) ||
(inst->children->type == XML_CDATA_SECTION_NODE)))
{
xmlNodePtr copyTxt;
/*
* xmlSetNsProp() will take care of duplicates.
*/
attr = xmlSetNsProp(ctxt->insert, ns, name, NULL);
if (attr == NULL) /* TODO: report error ? */
goto error;
/*
* This was taken over from xsltCopyText() (transform.c).
*/
if (ctxt->internalized &&
(ctxt->insert->doc != NULL) &&
(ctxt->insert->doc->dict == ctxt->dict))
{
copyTxt = xmlNewText(NULL);
if (copyTxt == NULL) /* TODO: report error */
goto error;
/*
* This is a safe scenario where we don't need to lookup
* the dict.
*/
copyTxt->content = inst->children->content;
/*
* Copy "disable-output-escaping" information.
* TODO: Does this have any effect for attribute values
* anyway?
*/
if (inst->children->name == xmlStringTextNoenc)
copyTxt->name = xmlStringTextNoenc;
} else {
/*
* Copy the value.
*/
copyTxt = xmlNewText(inst->children->content);
if (copyTxt == NULL) /* TODO: report error */
goto error;
}
attr->children = attr->last = copyTxt;
copyTxt->parent = (xmlNodePtr) attr;
copyTxt->doc = attr->doc;
/*
* Copy "disable-output-escaping" information.
* TODO: Does this have any effect for attribute values
* anyway?
*/
if (inst->children->name == xmlStringTextNoenc)
copyTxt->name = xmlStringTextNoenc;
/*
* since we create the attribute without content IDness must be
* asserted as a second step
*/
if ((copyTxt->content != NULL) &&
(xmlIsID(attr->doc, attr->parent, attr)))
xmlAddID(NULL, attr->doc, copyTxt->content, attr);
} else {
/*
* The sequence constructor might be complex, so instantiate it.
*/
value = xsltEvalTemplateString(ctxt, contextNode, inst);
if (value != NULL) {
attr = xmlSetNsProp(ctxt->insert, ns, name, value);
xmlFree(value);
} else {
/*
* TODO: Do we have to add the empty string to the attr?
* TODO: Does a value of NULL indicate an
* error in xsltEvalTemplateString() ?
*/
attr = xmlSetNsProp(ctxt->insert, ns, name,
(const xmlChar *) "");
}
}
error:
return;
}
