static void end_element_ns_callback(void *ctx,
const xmlChar *xlocalname, const xmlChar *xprefix, const xmlChar *xURI)
{
VALUE handler = (VALUE) ctx;
if (handler == Qnil)
return;
/* Call end element for old-times sake */
if (rb_respond_to(handler, cbidOnEndElement))
{
VALUE name;
if (xprefix)
{
name = rxml_new_cstr(xprefix, NULL);
rb_str_cat2(name, ":");
rb_str_cat2(name, xlocalname);
}
else
{
name = rxml_new_cstr(xlocalname, NULL);
}
rb_funcall(handler, cbidOnEndElement, 1, name);
}
rb_funcall(handler, cbidOnEndElementNs, 3,
rxml_new_cstr(xlocalname, NULL),
xprefix ? rxml_new_cstr(xprefix, NULL) : Qnil,
xURI ? rxml_new_cstr(xURI, NULL) : Qnil);
}
static void processing_instruction_callback(void *ctx, const char *target, const char *data)
{
VALUE handler = (VALUE) ctx;
if (handler != Qnil)
{
VALUE rtarget = target ? rxml_new_cstr(target, NULL) : Qnil;
VALUE rdata = data ? rxml_new_cstr(data, NULL) : Qnil;
rb_funcall(handler, cbidOnProcessingInstruction, 2, rtarget, rdata);
}
}
static void external_subset_callback(void *ctx, const char *name, const char *extid, const char *sysid)
{
VALUE handler = (VALUE) ctx;
if (handler != Qnil)
{
VALUE rname = name ? rxml_new_cstr(name, NULL) : Qnil;
VALUE rextid = extid ? rxml_new_cstr(extid, NULL) : Qnil;
VALUE rsysid = sysid ? rxml_new_cstr(sysid, NULL) : Qnil;
rb_funcall(handler, cbidOnExternalSubset, 3, rname, rextid, rsysid);
}
}
static VALUE rxml_node_to_s(int argc, VALUE *argv, VALUE self)
{
VALUE result = Qnil;
VALUE options = Qnil;
xmlNodePtr xnode;
xmlCharEncodingHandlerPtr encodingHandler;
xmlOutputBufferPtr output;
int level = 0;
int indent = 1;
const char *xencoding = "UTF-8";
rb_scan_args(argc, argv, "01", &options);
if (!NIL_P(options))
{
VALUE rencoding, rindent, rlevel;
Check_Type(options, T_HASH);
rencoding = rb_hash_aref(options, ID2SYM(rb_intern("encoding")));
rindent = rb_hash_aref(options, ID2SYM(rb_intern("indent")));
rlevel = rb_hash_aref(options, ID2SYM(rb_intern("level")));
if (rindent == Qfalse)
indent = 0;
if (rlevel != Qnil)
level = NUM2INT(rlevel);
if (rencoding != Qnil)
{
xencoding = xmlGetCharEncodingName((xmlCharEncoding)NUM2INT(rencoding));
if (!xencoding)
rb_raise(rb_eArgError, "Unknown encoding value: %d", NUM2INT(rencoding));
}
}
encodingHandler = xmlFindCharEncodingHandler(xencoding);
output = xmlAllocOutputBuffer(encodingHandler);
xnode = rxml_get_xnode(self);
xmlNodeDumpOutput(output, xnode->doc, xnode, level, indent, xencoding);
xmlOutputBufferFlush(output);
if (output->conv)
result = rxml_new_cstr((const char*) output->conv->content, xencoding);
else
result = rxml_new_cstr((const char*) output->buffer->content, xencoding);
xmlOutputBufferClose(output);
return result;
}
static void start_element_ns_callback(void *ctx,
const xmlChar *xlocalname, const xmlChar *xprefix, const xmlChar *xURI,
int nb_namespaces, const xmlChar **xnamespaces,
int nb_attributes, int nb_defaulted, const xmlChar **xattributes)
{
VALUE handler = (VALUE) ctx;
VALUE attributes = rb_hash_new();
VALUE namespaces = rb_hash_new();
if (handler == Qnil)
return;
if (xattributes)
{
/* Each attribute is an array of [localname, prefix, URI, value, end] */
int i;
for (i = 0;i < nb_attributes * 5; i+=5)
{
VALUE attrName = rxml_new_cstr(xattributes[i+0], NULL);
VALUE attrValue = rxml_new_cstr_len(xattributes[i+3], xattributes[i+4] - xattributes[i+3], NULL);
rb_hash_aset(attributes, attrName, attrValue);
}
}
if (xnamespaces)
{
int i;
for (i = 0;i < nb_namespaces * 2; i+=2)
{
VALUE nsPrefix = xnamespaces[i+0] ? rxml_new_cstr(xnamespaces[i+0], NULL) : Qnil;
VALUE nsURI = xnamespaces[i+1] ? rxml_new_cstr(xnamespaces[i+1], NULL) : Qnil;
rb_hash_aset(namespaces, nsPrefix, nsURI);
}
}
/* Call start element for old-times sake */
if (rb_respond_to(handler, cbidOnStartElement))
{
VALUE name;
if (xprefix)
{
name = rxml_new_cstr(xprefix, NULL);
rb_str_cat2(name, ":");
rb_str_cat2(name, xlocalname);
}
else
{
name = rxml_new_cstr(xlocalname, NULL);
}
rb_funcall(handler, cbidOnStartElement, 2, name, attributes);
}
rb_funcall(handler, cbidOnStartElementNs, 5,
rxml_new_cstr(xlocalname, NULL),
attributes,
xprefix ? rxml_new_cstr(xprefix, NULL) : Qnil,
xURI ? rxml_new_cstr(xURI, NULL) : Qnil,
namespaces);
}
/* call-seq:
* context.register_namespaces_from_node(node) -> self
*
* Helper method to read in namespaces defined on a node.
*
* doc = XML::Document.string('<header><first>hi</first></header>')
* context = XPath::Context.new(doc)
* context.register_namespaces_from_node(doc.root)
*/
static VALUE rxml_xpath_context_register_namespaces_from_node(VALUE self,
VALUE node)
{
xmlXPathContextPtr xctxt;
xmlNodePtr xnode;
xmlNsPtr *xnsArr;
Data_Get_Struct(self, xmlXPathContext, xctxt);
if (rb_obj_is_kind_of(node, cXMLDocument) == Qtrue)
{
xmlDocPtr xdoc;
Data_Get_Struct(node, xmlDoc, xdoc);
xnode = xmlDocGetRootElement(xdoc);
}
else if (rb_obj_is_kind_of(node, cXMLNode) == Qtrue)
{
Data_Get_Struct(node, xmlNode, xnode);
}
else
{
rb_raise(rb_eTypeError, "The first argument must be a document or node.");
}
xnsArr = xmlGetNsList(xnode->doc, xnode);
if (xnsArr)
{
xmlNsPtr xns = *xnsArr;
while (xns)
{
/* If there is no prefix, then this is the default namespace.
Skip it for now. */
if (xns->prefix)
{
VALUE prefix = rxml_new_cstr(xns->prefix, xctxt->doc->encoding);
VALUE uri = rxml_new_cstr(xns->href, xctxt->doc->encoding);
rxml_xpath_context_register_namespace(self, prefix, uri);
}
xns = xns->next;
}
xmlFree(xnsArr);
}
return self;
}
/*
* call-seq:
* reader.namespace_uri -> URI
*
* Determine the namespace URI of the node.
*/
static VALUE rxml_reader_namespace_uri(VALUE self)
{
xmlTextReaderPtr xReader = rxml_text_reader_get(self);
const xmlChar *result = xmlTextReaderConstNamespaceUri(xReader);
const xmlChar *xencoding = xmlTextReaderConstEncoding(xReader);
return (result == NULL ? Qnil : rxml_new_cstr(result, xencoding));
}
/*
* call-seq:
* reader.xml_version -> version
*
* Determine the XML version of the document being read.
*/
static VALUE rxml_reader_xml_version(VALUE self)
{
xmlTextReaderPtr xReader = rxml_text_reader_get(self);
const xmlChar *result = xmlTextReaderConstXmlVersion(xReader);
const xmlChar *xencoding = xmlTextReaderConstEncoding(xReader);
return (result == NULL ? Qnil : rxml_new_cstr(result, xencoding));
}
static void comment_callback(void *ctx, const char *msg)
{
VALUE handler = (VALUE) ctx;
if (handler != Qnil)
{
rb_funcall(handler, cbidOnComment,1,rxml_new_cstr(msg, NULL));
}
}
static void reference_callback(void *ctx, const char *name)
{
VALUE handler = (VALUE) ctx;
if (handler != Qnil)
{
rb_funcall(handler, cbidOnReference,1,rxml_new_cstr(name, NULL));
}
}
/*
* call-seq:
* Input.encoding_to_s(Input::ENCODING) -> "encoding"
*
* Converts an encoding constant defined on the XML::Encoding
* class to its text representation.
*/
static VALUE rxml_encoding_to_s(VALUE klass, VALUE encoding)
{
const char* xencoding = xmlGetCharEncodingName(NUM2INT(encoding));
if (!xencoding)
return Qnil;
else
return rxml_new_cstr(xencoding, xencoding);
}
/*
* call-seq:
* dtd.uri -> "string"
*
* Obtain this dtd's URI (for a SYSTEM or PUBLIC DTD).
*/
static VALUE rxml_dtd_uri_get(VALUE self)
{
xmlDtdPtr xdtd;
Data_Get_Struct(self, xmlDtd, xdtd);
if (xdtd->SystemID == NULL)
return (Qnil);
else
return (rxml_new_cstr( xdtd->SystemID, NULL));
}
/*
* call-seq:
* attr_decl.name -> "name"
*
* Obtain this attribute declaration's name.
*/
static VALUE rxml_attr_decl_name_get(VALUE self)
{
xmlAttributePtr xattr;
Data_Get_Struct(self, xmlAttribute, xattr);
if (xattr->name == NULL)
return Qnil;
else
return rxml_new_cstr((const char*) xattr->name, xattr->doc->encoding);
}
/*
* call-seq:
* document.version -> "version"
*
* Obtain the XML version specified by this document.
*/
static VALUE rxml_document_version_get(VALUE self)
{
xmlDocPtr xdoc;
Data_Get_Struct(self, xmlDoc, xdoc);
if (xdoc->version == NULL)
return (Qnil);
else
return (rxml_new_cstr((const char*) xdoc->version, NULL));
}
/*
* call-seq:
* xpath_object.string -> String
*
* Returns the original XPath expression as a string.
*/
static VALUE rxml_xpath_object_string(VALUE self)
{
rxml_xpath_object *rxpop;
Data_Get_Struct(self, rxml_xpath_object, rxpop);
if (rxpop->xpop->stringval == NULL)
return Qnil;
return rxml_new_cstr((const char*) rxpop->xpop->stringval, rxpop->xdoc->encoding);
}
/*
* call-seq:
* dtd.external_id -> "string"
*
* Obtain this dtd's external identifer (for a PUBLIC DTD).
*/
static VALUE rxml_dtd_external_id_get(VALUE self)
{
xmlDtdPtr xdtd;
Data_Get_Struct(self, xmlDtd, xdtd);
if (xdtd->ExternalID == NULL)
return (Qnil);
else
return (rxml_new_cstr( xdtd->ExternalID, NULL));
}
/*
* call-seq:
* attr_decl.value -> "value"
*
* Obtain the default value of this attribute declaration.
*/
VALUE rxml_attr_decl_value_get(VALUE self)
{
xmlAttributePtr xattr;
Data_Get_Struct(self, xmlAttribute, xattr);
if (xattr->defaultValue)
return rxml_new_cstr((const char *)xattr->defaultValue, NULL);
else
return Qnil;
}
/*
* call-seq:
* dtd.name -> "string"
*
* Obtain this dtd's name.
*/
static VALUE rxml_dtd_name_get(VALUE self)
{
xmlDtdPtr xdtd;
Data_Get_Struct(self, xmlDtd, xdtd);
if (xdtd->name == NULL)
return (Qnil);
else
return (rxml_new_cstr( xdtd->name, NULL));
}
/*
* call-seq:
* node.path -> path
*
* Obtain this node's path.
*/
static VALUE rxml_node_path(VALUE self)
{
xmlNodePtr xnode;
xmlChar *path;
xnode = rxml_get_xnode(self);
path = xmlGetNodePath(xnode);
if (path == NULL)
return (Qnil);
else
return (rxml_new_cstr((const char*) path, NULL));
}
/*
* call-seq:
* node.xlink_type_name -> "string"
*
* Obtain the type name for this xlink, if applicable.
* If this is not an xlink node (see +xlink?+), will return
* nil.
*/
static VALUE rxml_node_xlink_type_name(VALUE self)
{
xmlNodePtr xnode;
xlinkType xlt;
xnode = rxml_get_xnode(self);
xlt = xlinkIsLink(xnode->doc, xnode);
switch (xlt)
{
case XLINK_TYPE_NONE:
return (Qnil);
case XLINK_TYPE_SIMPLE:
return (rxml_new_cstr("simple", NULL));
case XLINK_TYPE_EXTENDED:
return (rxml_new_cstr("extended", NULL));
case XLINK_TYPE_EXTENDED_SET:
return (rxml_new_cstr("extended_set", NULL));
default:
rb_fatal("Unknowng xlink type, %d", xlt);
}
}
/*
* call-seq:
* reader.lookup_namespace(prefix) -> value
*
* Resolve a namespace prefix in the scope of the current element.
* To return the default namespace, specify nil as +prefix+.
*/
static VALUE rxml_reader_lookup_namespace(VALUE self, VALUE prefix)
{
VALUE result = Qnil;
xmlTextReaderPtr xReader = rxml_text_reader_get(self);
const xmlChar *xnamespace = xmlTextReaderLookupNamespace(xReader, (const xmlChar *) StringValueCStr(prefix));
const xmlChar *xencoding = xmlTextReaderConstEncoding(xReader);
if (xnamespace)
{
result = rxml_new_cstr((const char*)xnamespace, (const char*)xencoding);
xmlFree((void *)xnamespace);
}
return result;
}
/*
* call-seq:
* node.content -> "string"
*
* Obtain this node's content as a string.
*/
static VALUE rxml_node_content_get(VALUE self)
{
xmlNodePtr xnode;
xmlChar *content;
VALUE result = Qnil;
xnode = rxml_get_xnode(self);
content = xmlNodeGetContent(xnode);
if (content)
{
result = rxml_new_cstr((const char *) content, NULL);
xmlFree(content);
}
return result;
}
/*
* call-seq:
* reader.read_string -> string
*
* Read the contents of an element or a text node as a string.
*
* Return a string containing the contents of the Element or Text node, or nil
* if the reader is positioned on any other type of node.
*/
static VALUE rxml_reader_read_string(VALUE self)
{
VALUE result = Qnil;
xmlTextReaderPtr xReader = rxml_text_reader_get(self);
xmlChar *xml = xmlTextReaderReadString(xReader);
if (xml)
{
const xmlChar *xencoding = xmlTextReaderConstEncoding(xReader);
result = rxml_new_cstr((const char*) xml, xencoding);
xmlFree(xml);
}
return result;
}
/*
* call-seq:
* node.lang -> "string"
*
* Obtain the language set for this node, if any.
* This is set in XML via the xml:lang attribute.
*/
static VALUE rxml_node_lang_get(VALUE self)
{
xmlNodePtr xnode;
xmlChar *lang;
VALUE result = Qnil;
xnode = rxml_get_xnode(self);
lang = xmlNodeGetLang(xnode);
if (lang)
{
result = rxml_new_cstr((const char*) lang, NULL);
xmlFree(lang);
}
return (result);
}
/*
* call-seq:
* context.register_namespaces(["prefix:uri"]) -> self
*
* Register the specified namespaces in this context. There are
* three different forms that libxml accepts. These include
* a string, an array of strings, or a hash table:
*
* context.register_namespaces('xi:http://www.w3.org/2001/XInclude')
* context.register_namespaces(['xlink:http://www.w3.org/1999/xlink',
* 'xi:http://www.w3.org/2001/XInclude')
* context.register_namespaces('xlink' => 'http://www.w3.org/1999/xlink',
* 'xi' => 'http://www.w3.org/2001/XInclude')
*/
static VALUE rxml_xpath_context_register_namespaces(VALUE self, VALUE nslist)
{
char *cp;
long i;
VALUE rprefix, ruri;
xmlXPathContextPtr xctxt;
Data_Get_Struct(self, xmlXPathContext, xctxt);
/* Need to loop through the 2nd argument and iterate through the
* list of namespaces that we want to allow */
switch (TYPE(nslist))
{
case T_STRING:
cp = strchr(StringValuePtr(nslist), (int) ':');
if (cp == NULL)
{
rprefix = nslist;
ruri = Qnil;
}
else
{
rprefix = rb_str_new(StringValuePtr(nslist), (long) ((intptr_t) cp - (intptr_t)StringValuePtr(nslist)));
ruri = rxml_new_cstr((const xmlChar*)&cp[1], xctxt->doc->encoding);
}
/* Should test the results of this */
rxml_xpath_context_register_namespace(self, rprefix, ruri);
break;
case T_ARRAY:
for (i = 0; i < RARRAY_LEN(nslist); i++)
{
rxml_xpath_context_register_namespaces(self, RARRAY_PTR(nslist)[i]);
}
break;
case T_HASH:
rb_hash_foreach(nslist, iterate_ns_hash, self);
break;
default:
rb_raise(
rb_eArgError,
"Invalid argument type, only accept string, array of strings, or an array of arrays");
}
return self;
}
/*
* call-seq:
* node.base_uri -> "uri"
*
* Obtain this node's base URI.
*/
static VALUE rxml_node_base_uri_get(VALUE self)
{
xmlNodePtr xnode;
xmlChar* base_uri;
VALUE result = Qnil;
xnode = rxml_get_xnode(self);
if (xnode->doc == NULL)
return (result);
base_uri = xmlNodeGetBase(xnode->doc, xnode);
if (base_uri)
{
result = rxml_new_cstr((const char*) base_uri, NULL);
xmlFree(base_uri);
}
return (result);
}
/*
* call-seq:
* node.name -> "string"
*
* Obtain this node's name.
*/
static VALUE rxml_node_name_get(VALUE self)
{
xmlNodePtr xnode;
const xmlChar *name;
xnode = rxml_get_xnode(self);
switch (xnode->type)
{
case XML_DOCUMENT_NODE:
#ifdef LIBXML_DOCB_ENABLED
case XML_DOCB_DOCUMENT_NODE:
#endif
case XML_HTML_DOCUMENT_NODE:
{
xmlDocPtr doc = (xmlDocPtr) xnode;
name = doc->URL;
break;
}
case XML_ATTRIBUTE_NODE:
{
xmlAttrPtr attr = (xmlAttrPtr) xnode;
name = attr->name;
break;
}
case XML_NAMESPACE_DECL:
{
xmlNsPtr ns = (xmlNsPtr) xnode;
name = ns->prefix;
break;
}
default:
name = xnode->name;
break;
}
if (xnode->name == NULL)
return (Qnil);
else
return (rxml_new_cstr((const char*) name, NULL));
}
VALUE
rxml_xpath_to_value(xmlXPathContextPtr xctxt, xmlXPathObjectPtr xobject) {
VALUE result;
int type;
if (xobject == NULL) {
/* xmlLastError is different than xctxt->lastError. Use
xmlLastError since it has the message set while xctxt->lastError
does not. */
xmlErrorPtr xerror = xmlGetLastError();
rxml_raise(xerror);
}
switch (type = xobject->type) {
case XPATH_NODESET:
result = rxml_xpath_object_wrap(xctxt->doc, xobject);
break;
case XPATH_BOOLEAN:
result = (xobject->boolval != 0) ? Qtrue : Qfalse;
xmlXPathFreeObject(xobject);
break;
case XPATH_NUMBER:
result = rb_float_new(xobject->floatval);
xmlXPathFreeObject(xobject);
break;
case XPATH_STRING:
result = rxml_new_cstr(xobject->stringval, xctxt->doc->encoding);
xmlXPathFreeObject(xobject);
break;
default:
xmlXPathFreeObject(xobject);
rb_raise(rb_eTypeError,
"can't convert XPath object of type %d to Ruby value", type
);
}
return result;
}
/*
* call-seq:
* reader[key] -> value
*
* Provide the value of the attribute with the specified index (if +key+ is an
* integer) or with the specified name (if +key+ is a string) relative to the
* containing element, as a string.
*/
static VALUE rxml_reader_attribute(VALUE self, VALUE key)
{
VALUE result = Qnil;
xmlChar *xattr;
xmlTextReaderPtr xReader = rxml_text_reader_get(self);
const xmlChar *xencoding = xmlTextReaderConstEncoding(xReader);
if (TYPE(key) == T_FIXNUM)
{
xattr = xmlTextReaderGetAttributeNo(xReader, FIX2INT(key));
}
else
{
xattr = xmlTextReaderGetAttribute(xReader, (const xmlChar *) StringValueCStr(key));
}
if (xattr)
{
result = rxml_new_cstr(xattr, xencoding);
xmlFree(xattr);
}
return result;
}
/*
* call-seq:
* document.to_s -> "string"
* document.to_s(:indent => true, :encoding => XML::Encoding::UTF_8) -> "string"
*
* Converts a document, and all of its children, to a string representation.
* You may provide an optional hash table to control how the string is
* generated. Valid options are:
*
* :indent - Specifies if the string should be indented. The default value
* is true. Note that indentation is only added if both :indent is
* true and XML.indent_tree_output is true. If :indent is set to false,
* then both indentation and line feeds are removed from the result.
*
* :encoding - Specifies the output encoding of the string. It
* defaults to XML::Encoding::UTF8. To change it, use one of the
* XML::Encoding encoding constants. */
static VALUE rxml_document_to_s(int argc, VALUE *argv, VALUE self)
{
VALUE result;
VALUE options = Qnil;
xmlDocPtr xdoc;
int indent = 1;
const char *xencoding = "UTF-8";
xmlChar *buffer;
int length;
rb_scan_args(argc, argv, "01", &options);
if (!NIL_P(options))
{
VALUE rencoding, rindent;
Check_Type(options, T_HASH);
rencoding = rb_hash_aref(options, ID2SYM(rb_intern("encoding")));
rindent = rb_hash_aref(options, ID2SYM(rb_intern("indent")));
if (rindent == Qfalse)
indent = 0;
if (rencoding != Qnil)
{
xencoding = xmlGetCharEncodingName((xmlCharEncoding)NUM2INT(rencoding));
if (!xencoding)
rb_raise(rb_eArgError, "Unknown encoding value: %d", NUM2INT(rencoding));
}
}
Data_Get_Struct(self, xmlDoc, xdoc);
xmlDocDumpFormatMemoryEnc(xdoc, &buffer, &length, xencoding, indent);
result = rxml_new_cstr((const char*) buffer, xencoding);
xmlFree(buffer);
return result;
}
