diff options
Diffstat (limited to 'ACE/ACEXML/common/NamespaceSupport.cpp')
| -rw-r--r-- | ACE/ACEXML/common/NamespaceSupport.cpp | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/ACE/ACEXML/common/NamespaceSupport.cpp b/ACE/ACEXML/common/NamespaceSupport.cpp new file mode 100644 index 00000000000..d8b9b27ae6a --- /dev/null +++ b/ACE/ACEXML/common/NamespaceSupport.cpp @@ -0,0 +1,247 @@ +// -*- C++ -*- $Id$ + +#include "ACEXML/common/NamespaceSupport.h" +#include "ace/OS_NS_string.h" + +static const ACEXML_Char ACEXML_XMLNS_PREFIX_name[] = ACE_TEXT ("xmlns"); + +const ACEXML_Char *ACEXML_NamespaceSupport::XMLNS_PREFIX = ACEXML_XMLNS_PREFIX_name; + +static const ACEXML_Char ACEXML_DEFAULT_NS_PREFIX[] = {0}; + +static const ACEXML_Char ACEXML_TABOO_NS_PREFIX[] = ACE_TEXT ("xml"); + +static const ACEXML_Char ACEXML_XMLNS_URI_name[] = ACE_TEXT ("http://www.w3.org/XML/1998/namespace"); +const ACEXML_Char *ACEXML_NamespaceSupport::XMLNS = ACEXML_XMLNS_URI_name; + +ACEXML_Namespace_Context_Stack::ACEXML_Namespace_Context_Stack (void) +{ +} + +ACEXML_Namespace_Context_Stack::~ACEXML_Namespace_Context_Stack (void) +{ + // Clean up stuff. +} + +int +ACEXML_Namespace_Context_Stack::push (ACEXML_NS_CONTEXT *nsc) +{ + return (this->stack_.push (nsc) < 0); +} + +ACEXML_NS_CONTEXT * +ACEXML_Namespace_Context_Stack::pop (void) +{ + if (this->stack_.size() <= 0) + return 0; + + ACEXML_NS_CONTEXT* temp = 0; + int retval = this->stack_.pop (temp); + if (retval != 0) + { + ACE_ERROR ((LM_ERROR, "Unable to pop Namespace context from stack\n")); + return 0; + } + return temp; +} + +int +ACEXML_NamespaceSupport::popContext (void) +{ + delete this->effective_context_; + + if ((this->effective_context_ = this->ns_stack_.pop ()) == 0) + return -1; + return 0; +} + +int +ACEXML_NamespaceSupport::pushContext (void) +{ + ACEXML_NS_CONTEXT *temp = this->effective_context_; + ACE_NEW_RETURN (this->effective_context_, + ACEXML_NS_CONTEXT (), + -1); + + // @@ Copy everything from the old context to the new one. + ACEXML_NS_CONTEXT_ENTRY *entry = 0; + + for (ACEXML_NS_CONTEXT_ITER iter (*temp); + iter.next (entry) != 0; + iter.advance ()) + this->effective_context_->bind (entry->ext_id_, + entry->int_id_); + this->ns_stack_.push (temp); + return 0; +} + +ACEXML_NamespaceSupport::ACEXML_NamespaceSupport (void) + : ns_stack_ (), + effective_context_ (0) +{} + +int +ACEXML_NamespaceSupport::init (void) +{ + // @@ No way to tell if the new fails. + ACE_NEW_RETURN (effective_context_, ACEXML_NS_CONTEXT(), -1); + + ACEXML_String prefix (ACEXML_TABOO_NS_PREFIX, 0, false); + ACEXML_String uri (ACEXML_XMLNS_URI_name, 0, false); + return this->effective_context_->bind (prefix, uri); +} + +ACEXML_NamespaceSupport::~ACEXML_NamespaceSupport (void) +{ + while (this->popContext () == 0) + ; +} + +int +ACEXML_NamespaceSupport::declarePrefix (const ACEXML_Char *prefix, + const ACEXML_Char *uri) +{ + if (!prefix || !uri) + return -1; + + // Unless predefined by w3.org(?) NS prefix can never start with + // "xml". + if (ACE_OS::strcmp (ACEXML_TABOO_NS_PREFIX, prefix) == 0) + return -1; + + ACEXML_String ns_prefix (prefix, 0, false); + ACEXML_String ns_uri (uri, 0, false); + + return this->effective_context_->rebind (ns_prefix, ns_uri); +} + +int +ACEXML_NamespaceSupport::getDeclaredPrefixes (ACEXML_STR_LIST &prefixes) const +{ + ACEXML_NS_CONTEXT_ENTRY *entry = 0; + + // The prefix for default namespace (empty string) is included in + // the return list. + for (ACEXML_NS_CONTEXT_ITER iter (*this->effective_context_); + iter.next (entry) != 0; + iter.advance ()) + prefixes.enqueue_tail (entry->ext_id_.c_str ()); + + return 0; +} + +const ACEXML_Char * +ACEXML_NamespaceSupport::getPrefix (const ACEXML_Char *uri) const +{ + if (!uri || *uri == 0) + return 0; + + ACEXML_NS_CONTEXT_ENTRY *entry = 0; + + for (ACEXML_NS_CONTEXT_ITER iter (*this->effective_context_); + iter.next (entry) != 0; + iter.advance ()) + if (entry->int_id_ == ACEXML_String (uri, 0, false)) + return entry->ext_id_.c_str (); + + return 0; // Nothing found. +} + +int +ACEXML_NamespaceSupport::getPrefixes (ACEXML_STR_LIST &prefixes) const +{ + ACEXML_NS_CONTEXT_ENTRY *entry = 0; + + // The prefix for default namespace (empty string) is not included + // in the return list. + for (ACEXML_NS_CONTEXT_ITER iter (*this->effective_context_); + iter.next (entry) != 0; + iter.advance ()) + prefixes.enqueue_tail (entry->ext_id_.c_str ()); + return 0; +} + +int +ACEXML_NamespaceSupport::getPrefixes (const ACEXML_Char *uri, + ACEXML_STR_LIST &prefixes) const +{ + if (!uri) + return -1; + + ACEXML_NS_CONTEXT_ENTRY *entry = 0; + + for (ACEXML_NS_CONTEXT_ITER iter (*this->effective_context_); + iter.next (entry) != 0; + iter.advance ()) + if (entry->int_id_ == ACEXML_String (uri, 0, false) && + entry->ext_id_ != ACEXML_String (ACEXML_DEFAULT_NS_PREFIX, 0, false)) + prefixes.enqueue_tail (entry->ext_id_.c_str ()); + else + continue; + + return 0; // Nothing found. +} + +const ACEXML_Char * +ACEXML_NamespaceSupport::getURI (const ACEXML_Char *prefix) const +{ + if (!prefix) + return 0; + + ACEXML_NS_CONTEXT_ENTRY *entry = 0; + + if (this->effective_context_->find (ACEXML_String (prefix, 0, false), + entry) == 0) + return entry->int_id_.c_str (); + return 0; +} + +int +ACEXML_NamespaceSupport::processName (const ACEXML_Char *qName, + const ACEXML_Char *&uri, + const ACEXML_Char *&name, + int is_attribute) const +{ + int qlen = static_cast<int> (ACE_OS::strlen (qName)); + int len = -1; + for (int i = 0; i < qlen; ++i) + if (qName [i] == ':') + { + len = i; + break; + } + + ACEXML_String prefix (ACE_TEXT (""), 0, false); + if (len == -1) + name = qName; + else + { + prefix.set (qName, len, 1); + name = qName + len + 1; + } + + if (is_attribute && len == -1) { + uri = ACEXML_DEFAULT_NS_PREFIX; + return 0; + } + + ACEXML_NS_CONTEXT_ENTRY *entry = 0; + + if (this->effective_context_->find (prefix, entry) == 0) + uri = entry->int_id_.c_str (); + else + { + uri = ACEXML_DEFAULT_NS_PREFIX; + return -1; + } + return 0; +} + +int +ACEXML_NamespaceSupport::reset (void) +{ + while (this->popContext() != -1) + ; + return 0; +} + |