diff options
Diffstat (limited to 'libxsd/xsd/cxx/parser/expat/elements.txx')
| -rw-r--r-- | libxsd/xsd/cxx/parser/expat/elements.txx | 823 |
1 files changed, 0 insertions, 823 deletions
diff --git a/libxsd/xsd/cxx/parser/expat/elements.txx b/libxsd/xsd/cxx/parser/expat/elements.txx deleted file mode 100644 index a1b1beb..0000000 --- a/libxsd/xsd/cxx/parser/expat/elements.txx +++ /dev/null @@ -1,823 +0,0 @@ -// file : xsd/cxx/parser/expat/elements.txx -// license : GNU GPL v2 + exceptions; see accompanying LICENSE file - -#include <new> // std::bad_alloc -#include <istream> -#include <fstream> -#include <cstring> // std::strchr -#include <cassert> - -#include <xsd/cxx/xml/bits/literals.hxx> // xml::bits::{xml_prefix, etc} - -namespace xsd -{ - namespace cxx - { - namespace parser - { - namespace expat - { - - // document - // - - template <typename C> - document<C>:: - document (parser_base<C>& p, - const std::basic_string<C>& name, - bool polymorphic) - : cxx::parser::document<C> (p, std::basic_string<C> (), name), - xml_parser_ (0), - eh_ (0), - polymorphic_ (polymorphic) - { - } - - template <typename C> - document<C>:: - document (parser_base<C>& p, - const C* name, - bool polymorphic) - : cxx::parser::document<C> (p, std::basic_string<C> (), name), - xml_parser_ (0), - eh_ (0), - polymorphic_ (polymorphic) - { - } - - template <typename C> - document<C>:: - document (parser_base<C>& p, - const C* ns, - const C* name, - bool polymorphic) - : cxx::parser::document<C> (p, ns, name), - xml_parser_ (0), - eh_ (0), - polymorphic_ (polymorphic) - { - } - - template <typename C> - document<C>:: - document (parser_base<C>& p, - const std::basic_string<C>& ns, - const std::basic_string<C>& name, - bool polymorphic) - : cxx::parser::document<C> (p, ns, name), - xml_parser_ (0), - eh_ (0), - polymorphic_ (polymorphic) - { - } - - template <typename C> - document<C>:: - document (bool polymorphic) - : xml_parser_ (0), - eh_ (0), - polymorphic_ (polymorphic) - { - } - - // file - // - - template <typename C> - void document<C>:: - parse (const std::basic_string<C>& file) - { - std::ifstream ifs; - ifs.exceptions (std::ios_base::badbit | std::ios_base::failbit); - ifs.open (file.c_str (), std::ios_base::in | std::ios_base::binary); - - parse (ifs, file); - } - - template <typename C> - void document<C>:: - parse (const std::basic_string<C>& file, xml::error_handler<C>& eh) - { - std::ifstream ifs; - ifs.exceptions (std::ios_base::badbit | std::ios_base::failbit); - ifs.open (file.c_str (), std::ios_base::in | std::ios_base::binary); - - parse (ifs, file, eh); - } - - - // istream - // - - template <typename C> - void document<C>:: - parse (std::istream& is) - { - parse (is, 0, 0, default_eh_); - } - - template <typename C> - void document<C>:: - parse (std::istream& is, xml::error_handler<C>& eh) - { - if (!parse (is, 0, 0, eh)) - throw parsing<C> (); - } - - template <typename C> - void document<C>:: - parse (std::istream& is, const std::basic_string<C>& system_id) - { - default_eh_.reset (); - parse (is, &system_id, 0, default_eh_); - } - - template <typename C> - void document<C>:: - parse (std::istream& is, - const std::basic_string<C>& system_id, - xml::error_handler<C>& eh) - { - if (!parse (is, &system_id, 0, eh)) - throw parsing<C> (); - } - - template <typename C> - void document<C>:: - parse (std::istream& is, - const std::basic_string<C>& system_id, - const std::basic_string<C>& public_id) - { - default_eh_.reset (); - parse (is, &system_id, &public_id, default_eh_); - } - - template <typename C> - void document<C>:: - parse (std::istream& is, - const std::basic_string<C>& system_id, - const std::basic_string<C>& public_id, - xml::error_handler<C>& eh) - { - if (!parse (is, &system_id, &public_id, eh)) - throw parsing<C> (); - } - - // data - // - - template <typename C> - void document<C>:: - parse (const void* data, std::size_t size, bool last) - { - default_eh_.reset (); - parse (data, size, last, 0, 0, default_eh_); - } - - template <typename C> - void document<C>:: - parse (const void* data, std::size_t size, bool last, - xml::error_handler<C>& eh) - { - if (!parse (data, size, last, 0, 0, eh)) - throw parsing<C> (); - } - - template <typename C> - void document<C>:: - parse (const void* data, std::size_t size, bool last, - const std::basic_string<C>& system_id) - { - default_eh_.reset (); - parse (data, size, last, &system_id, 0, default_eh_); - } - - template <typename C> - void document<C>:: - parse (const void* data, std::size_t size, bool last, - const std::basic_string<C>& system_id, - xml::error_handler<C>& eh) - { - if (!parse (data, size, last, &system_id, 0, eh)) - throw parsing<C> (); - } - - template <typename C> - void document<C>:: - parse (const void* data, std::size_t size, bool last, - const std::basic_string<C>& system_id, - const std::basic_string<C>& public_id) - { - default_eh_.reset (); - parse (data, size, last, &system_id, &public_id, default_eh_); - } - - template <typename C> - void document<C>:: - parse (const void* data, std::size_t size, bool last, - const std::basic_string<C>& system_id, - const std::basic_string<C>& public_id, - xml::error_handler<C>& eh) - { - if (!parse (data, size, last, &system_id, &public_id, eh)) - throw parsing<C> (); - } - - // Implementation details. - // - - namespace bits - { - struct stream_exception_controller - { - ~stream_exception_controller () - { - std::ios_base::iostate s = is_.rdstate (); - s &= ~std::ios_base::failbit; - - // If our error state (sans failbit) intersects with the - // exception state then that means we have an active - // exception and changing error/exception state will - // cause another to be thrown. - // - if (!(old_state_ & s)) - { - // Clear failbit if it was caused by eof. - // - if (is_.fail () && is_.eof ()) - is_.clear (s); - - is_.exceptions (old_state_); - } - } - - stream_exception_controller (std::istream& is) - : is_ (is), old_state_ (is_.exceptions ()) - { - is_.exceptions (old_state_ & ~std::ios_base::failbit); - } - - private: - stream_exception_controller (const stream_exception_controller&); - - stream_exception_controller& - operator= (const stream_exception_controller&); - - private: - std::istream& is_; - std::ios_base::iostate old_state_; - }; - }; - - template <typename C> - bool document<C>:: - parse (std::istream& is, - const std::basic_string<C>* system_id, - const std::basic_string<C>* public_id, - xml::error_handler<C>& eh) - { - parser_auto_ptr parser (XML_ParserCreateNS (0, XML_Char (' '))); - - if (parser.get () == 0) - throw std::bad_alloc (); - - if (system_id || public_id) - parse_begin ( - parser.get (), system_id ? *system_id : *public_id, eh); - else - parse_begin (parser.get (), eh); - - // Temporarily unset the exception failbit. Also clear the - // fail bit when we reset the old state if it was caused - // by eof. - // - bits::stream_exception_controller sec (is); - - char buf[16384]; // 4 x page size. - - bool r (true); - - do - { - is.read (buf, sizeof (buf)); - - if (is.bad () || (is.fail () && !is.eof ())) - { - // If the stream is not using exceptions then the user - // will have to test for stream failures before calling - // post. - // - break; - } - - if (XML_Parse (parser.get (), - buf, - is.gcount (), - is.eof ()) == XML_STATUS_ERROR) - { - r = false; - break; - } - } while (!is.eof ()); - - parse_end (); - return r; - } - - template <typename C> - bool document<C>:: - parse (const void* data, - std::size_t size, - bool last, - const std::basic_string<C>* system_id, - const std::basic_string<C>* public_id, - xml::error_handler<C>& eh) - { - // First call. - // - if (auto_xml_parser_.get () == 0) - { - auto_xml_parser_ = XML_ParserCreateNS (0, XML_Char (' ')); - - if (auto_xml_parser_.get () == 0) - throw std::bad_alloc (); - - if (system_id || public_id) - parse_begin (auto_xml_parser_.get (), - system_id ? *system_id : *public_id, eh); - else - parse_begin (auto_xml_parser_.get (), eh); - } - - bool r (XML_Parse (xml_parser_, - static_cast<const char*> (data), - static_cast<int> (size), - last) != XML_STATUS_ERROR); - parse_end (); - return r; - } - - // XML_Parser - // - - template <typename C> - void document<C>:: - parse_begin (XML_Parser parser) - { - xml_parser_ = parser; - eh_ = &default_eh_; - public_id_.clear (); - set (); - } - - template <typename C> - void document<C>:: - parse_begin (XML_Parser parser, - const std::basic_string<C>& public_id) - { - xml_parser_ = parser; - eh_ = &default_eh_; - public_id_ = public_id; - set (); - } - - template <typename C> - void document<C>:: - parse_begin (XML_Parser parser, xml::error_handler<C>& eh) - { - xml_parser_ = parser; - eh_ = &eh; - public_id_.clear (); - set (); - } - - template <typename C> - void document<C>:: - parse_begin (XML_Parser parser, - const std::basic_string<C>& public_id, - xml::error_handler<C>& eh) - { - xml_parser_ = parser; - eh_ = &eh; - public_id_ = public_id; - set (); - } - - template <typename C> - void document<C>:: - parse_end () - { - XML_Error e (XML_GetErrorCode (xml_parser_)); - - if (e == XML_ERROR_NONE || e == XML_ERROR_ABORTED) - { - clear (); - xml_parser_ = 0; - auto_xml_parser_ = 0; - } - else - { - unsigned long l = XML_GetCurrentLineNumber (xml_parser_); - unsigned long c = XML_GetCurrentColumnNumber (xml_parser_); - std::basic_string<C> message (XML_ErrorString (e)); - - eh_->handle (public_id_, - l, c, - xml::error_handler<C>::severity::fatal, - message); - - clear (); - xml_parser_ = 0; - auto_xml_parser_ = 0; - - // We don't want to throw an empty parsing exception here - // since the user probably already knows about the error. - } - - if (eh_ == &default_eh_) - default_eh_.throw_if_failed (); - } - - // - // - template <typename C> - void document<C>:: - set () - { - assert (xml_parser_ != 0); - - XML_SetUserData(xml_parser_, this); - - XML_SetStartElementHandler (xml_parser_, start_element_thunk_); - XML_SetEndElementHandler (xml_parser_, end_element_thunk_); - XML_SetCharacterDataHandler (xml_parser_, characters_thunk_); - - if (polymorphic_) - { - XML_SetNamespaceDeclHandler (xml_parser_, - start_namespace_decl_thunk_, - end_namespace_decl_thunk_); - } - } - - template <typename C> - void document<C>:: - clear () - { - assert (xml_parser_ != 0); - - XML_SetUserData (xml_parser_, 0); - XML_SetStartElementHandler (xml_parser_, 0); - XML_SetEndElementHandler (xml_parser_, 0); - XML_SetCharacterDataHandler (xml_parser_, 0); - - if (polymorphic_) - XML_SetNamespaceDeclHandler (xml_parser_, 0, 0); - } - - template <typename C> - void document<C>:: - translate_schema_exception (const schema_exception<C>& e) - { - unsigned long l = XML_GetCurrentLineNumber (xml_parser_); - unsigned long c = XML_GetCurrentColumnNumber (xml_parser_); - - eh_->handle (public_id_, - l, c, - xml::error_handler<C>::severity::fatal, - e.message ()); - - XML_StopParser (xml_parser_, false); - } - - // Event routing. - // - - // Expat thunks. - // - template <typename C> - void XMLCALL document<C>:: - start_element_thunk_ (void* data, - const XML_Char* ns_name, - const XML_Char** atts) - { - document& d (*reinterpret_cast<document*> (data)); - d.start_element_ (ns_name, atts); - } - - template <typename C> - void XMLCALL document<C>:: - end_element_thunk_ (void* data, const XML_Char* ns_name) - { - document& d (*reinterpret_cast<document*> (data)); - d.end_element_ (ns_name); - } - - template <typename C> - void XMLCALL document<C>:: - characters_thunk_ (void* data, const XML_Char* s, int n) - { - document& d (*reinterpret_cast<document*> (data)); - d.characters_ (s, static_cast<std::size_t> (n)); - } - - template <typename C> - void XMLCALL document<C>:: - start_namespace_decl_thunk_ (void* data, - const XML_Char* prefix, - const XML_Char* ns) - { - document& d (*reinterpret_cast<document*> (data)); - d.start_namespace_decl_ (prefix, ns); - } - - template <typename C> - void XMLCALL document<C>:: - end_namespace_decl_thunk_ (void* data, const XML_Char* prefix) - { - document& d (*reinterpret_cast<document*> (data)); - d.end_namespace_decl_ (prefix); - } - - namespace bits - { - inline void - split_name (const XML_Char* s, - const char*& ns, std::size_t& ns_s, - const char*& name, std::size_t& name_s) - { - const char* p (std::strchr (s, ' ')); - - if (p) - { - ns = s; - ns_s = p - s; - name = p + 1; - } - else - { - ns = s; - ns_s = 0; - name = s; - } - - name_s = std::char_traits<char>::length (name); - } - } - - template <typename C> - void document<C>:: - start_element_ (const XML_Char* ns_name, const XML_Char** atts) - { - // Current Expat (2.0.0) has a (mis)-feature of a possibility of - // calling callbacks even after the non-resumable XML_StopParser - // call. The following code accounts for this. - // - { - XML_ParsingStatus s; - XML_GetParsingStatus (xml_parser_, &s); - if (s.parsing == XML_FINISHED) - return; - } - - typedef std::basic_string<C> string; - - const char* ns_p; - const char* name_p; - size_t ns_s, name_s; - - bits::split_name (ns_name, ns_p, ns_s, name_p, name_s); - - { - const ro_string<C> ns (ns_p, ns_s), name (name_p, name_s); - - if (!polymorphic_) - { - try - { - this->start_element (ns, name, 0); - } - catch (const schema_exception<C>& e) - { - translate_schema_exception (e); - return; - } - } - else - { - // Search for the xsi:type attribute. - // - const XML_Char** p = atts; // VC8 can't handle p (atts) - for (; *p != 0; p += 2) - { - bits::split_name (*p, ns_p, ns_s, name_p, name_s); - const ro_string<C> ns (ns_p, ns_s), name (name_p, name_s); - - if (name == xml::bits::type<C> () && - ns == xml::bits::xsi_namespace<C> ()) - break; - } - - if (*p == 0) - { - try - { - this->start_element (ns, name, 0); - } - catch (const schema_exception<C>& e) - { - translate_schema_exception (e); - return; - } - } - else - { - // @@ Need proper QName validation. - // - // Get the qualified type name and try to resolve it. - // - ro_string<C> qn (*(p + 1)); - - ro_string<C> tp, tn; - typename ro_string<C>::size_type pos (qn.find (C (':'))); - - try - { - if (pos != ro_string<C>::npos) - { - tp.assign (qn.data (), pos); - tn.assign (qn.data () + pos + 1); - - if (tp.empty ()) - throw dynamic_type<C> (qn); - } - else - tn.assign (qn.data (), qn.size ()); - - if (tn.empty ()) - throw dynamic_type<C> (qn); - - // Search our namespace declaration stack. Note that - // we need to do this even if prefix is empty. Sun CC - // 5.7 blows if we use const_reverse_iterator. - // - ro_string<C> tns; - for (typename ns_decls::reverse_iterator - it (ns_decls_.rbegin ()), e (ns_decls_.rend ()); - it != e; ++it) - { - if (it->prefix == tp) - { - tns.assign (it->ns); - break; - } - } - - if (!tp.empty () && tns.empty ()) - { - // The 'xml' prefix requires special handling. - // - if (tp == xml::bits::xml_prefix<C> ()) - tns.assign (xml::bits::xml_namespace<C> ()); - else - throw dynamic_type<C> (qn); - } - - // Construct the compound type id. - // - string id (tn.data (), tn.size ()); - - if (!tns.empty ()) - { - id += C (' '); - id.append (tns.data (), tns.size ()); - } - - ro_string<C> ro_id (id); - this->start_element (ns, name, &ro_id); - } - catch (const schema_exception<C>& e) - { - translate_schema_exception (e); - return; - } - } - } - } - - for (; *atts != 0; atts += 2) - { - bits::split_name (*atts, ns_p, ns_s, name_p, name_s); - - const ro_string<C> ns (ns_p, ns_s), name (name_p, name_s); - const ro_string<C> value (*(atts + 1)); - - try - { - this->attribute (ns, name, value); - } - catch (const schema_exception<C>& e) - { - translate_schema_exception (e); - break; - } - } - } - - template <typename C> - void document<C>:: - end_element_ (const XML_Char* ns_name) - { - // Current Expat (2.0.0) has a (mis)-feature of a possibility of - // calling callbacks even after the non-resumable XML_StopParser - // call. The following code accounts for this. - // - { - XML_ParsingStatus s; - XML_GetParsingStatus (xml_parser_, &s); - if (s.parsing == XML_FINISHED) - return; - } - - const char* ns_p; - const char* name_p; - size_t ns_s, name_s; - - bits::split_name (ns_name, ns_p, ns_s, name_p, name_s); - - const ro_string<C> ns (ns_p, ns_s), name (name_p, name_s); - - try - { - this->end_element (ns, name); - } - catch (const schema_exception<C>& e) - { - translate_schema_exception (e); - } - } - - template <typename C> - void document<C>:: - characters_ (const XML_Char* s, std::size_t n) - { - // Current Expat (2.0.0) has a (mis)-feature of a possibility of - // calling callbacks even after the non-resumable XML_StopParser - // call. The following code accounts for this. - // - { - XML_ParsingStatus s; - XML_GetParsingStatus (xml_parser_, &s); - if (s.parsing == XML_FINISHED) - return; - } - - if (n != 0) - { - const ro_string<C> str (s, n); - - try - { - this->characters (str); - } - catch (const schema_exception<C>& e) - { - translate_schema_exception (e); - } - } - } - - template <typename C> - void document<C>:: - start_namespace_decl_ (const XML_Char* p, const XML_Char* ns) - { - // prefix is 0 for default namespace - // namespace is 0 when unsetting default namespace - // - if (polymorphic_) - ns_decls_.push_back (ns_decl ((p ? p : ""), (ns ? ns : ""))); - } - - template <typename C> - void document<C>:: - end_namespace_decl_ (const XML_Char* p) - { - // prefix is 0 for default namespace - // - if (polymorphic_) - { - // Here we assume the prefixes are removed in the reverse - // order of them being added. This appears to how every - // sensible implementation works. - // - assert (p - ? ns_decls_.back ().prefix == p - : ns_decls_.back ().prefix.empty ()); - - ns_decls_.pop_back (); - } - } - } - } - } -} |