diff options
Diffstat (limited to 'xsd-examples/cxx/parser/polyroot')
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/README | 36 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/batman.xml | 16 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/buildfile | 24 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/driver.cxx | 138 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/person.xml | 15 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/superman.xml | 16 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/supermen-pimpl.cxx | 85 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/supermen-pimpl.hxx | 64 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/supermen.xsd | 36 | ||||
| -rw-r--r-- | xsd-examples/cxx/parser/polyroot/testscript | 6 |
10 files changed, 436 insertions, 0 deletions
diff --git a/xsd-examples/cxx/parser/polyroot/README b/xsd-examples/cxx/parser/polyroot/README new file mode 100644 index 0000000..f41b91c --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/README @@ -0,0 +1,36 @@ +This example shows how to handle the xsi:type attributes when it is used +on root elements. For general coverage of XML Schema polymorphism handling +in the C++/Parser mapping see the polymorphism example. + +The example consists of the following files: + +supermen.xsd + XML Schema which describes the "supermen" instance documents. + +person.xml +superman.xml +batman.xml + Sample XML instance documents. + +supermen-pskel.hxx +supermen-pskel.cxx + Parser skeletons generated by the XSD compiler from supermen.xsd. + Note the use of the --generate-polymorphic command line option. + +supermen-pimpl.hxx +supermen-pimpl.cxx + Parser implementations that print the XML data to STDOUT. + +driver.cxx + Driver for the example. It implements a custom document parser + that determines which XML Schema type is being parsed and uses + the corresponding parser implementation. The driver first + constructs a parser instance from all the individual parsers + found in supermen-pimpl.hxx. In then invokes this parser instance + to parse the input file. + +To run the example on the sample XML instance documents simply execute: + +$ ./driver person.xml +$ ./driver superman.xml +$ ./driver batman.xml diff --git a/xsd-examples/cxx/parser/polyroot/batman.xml b/xsd-examples/cxx/parser/polyroot/batman.xml new file mode 100644 index 0000000..600ad6f --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/batman.xml @@ -0,0 +1,16 @@ +<?xml version="1.0"?> + +<!-- + +file : cxx/parser/polyroot/batman.xml +copyright : not copyrighted - public domain + +--> + +<person xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" + xsi:noNamespaceSchemaLocation="supermen.xsd" + xsi:type="batman" can-fly="true" wing-span="10"> + + <name>Bruce Wayne</name> + +</person> diff --git a/xsd-examples/cxx/parser/polyroot/buildfile b/xsd-examples/cxx/parser/polyroot/buildfile new file mode 100644 index 0000000..6ae0fdc --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/buildfile @@ -0,0 +1,24 @@ +# file : cxx/parser/polyroot/buildfile +# license : not copyrighted - public domain + +import libs = libxsd%lib{xsd} +import libs += libxerces-c%lib{xerces-c} + +./: exe{driver} doc{README} xml{batman person superman} + +exe{driver}: {hxx cxx}{* -supermen-pskel} {hxx ixx cxx}{supermen-pskel} $libs \ + testscript + +<{hxx ixx cxx}{supermen-pskel}>: xsd{supermen} $xsd +{{ + diag xsd ($<[0]) # @@ TMP + + $xsd cxx-parser --std c++11 \ + --generate-inline \ + --skel-file-suffix -pskel \ + --generate-polymorphic \ + --output-dir $out_base \ + $path($<[0]) +}} + +cxx.poptions =+ "-I$out_base" "-I$src_base" diff --git a/xsd-examples/cxx/parser/polyroot/driver.cxx b/xsd-examples/cxx/parser/polyroot/driver.cxx new file mode 100644 index 0000000..986c8c0 --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/driver.cxx @@ -0,0 +1,138 @@ +// file : cxx/parser/polyroot/driver.cxx +// copyright : not copyrighted - public domain + +#include <map> +#include <string> +#include <iostream> + +#include "supermen-pimpl.hxx" + +using std::cerr; +using std::endl; +using xml_schema::ro_string; + +// Customize the xml_schema::document object to handle polymorphic +// root element. For more information see the multiroot example. +// +class document: public xml_schema::document +{ +public: + document (const xml_schema::parser_map& parser_map) + : xml_schema::document (true), // Indicate polymorphic parsing. + parser_map_ (parser_map) + { + } + +protected: + // This function is called to obtain the root element type parser. + // If the returned pointer is 0 then the whole document content + // is ignored. The type argument contains the XML Schema type + // if xsi:type attribute was specified for this element and 0 + // otherwise. + // + virtual xml_schema::parser_base* + start_root_element (const ro_string& ns, + const ro_string& name, + const ro_string* type) + { + if (name != "person" || !ns.empty ()) + return 0; + + xml_schema::parser_base* base; + + // Search the parser map. + // + if (type == 0) + { + // No xsi:type. Static type should be used. + // + ro_string st (person_pskel::_static_type ()); + base = parser_map_.find (st); + } + else + { + base = parser_map_.find (*type); + } + + if (base != 0) + { + parser_used_ = dynamic_cast<person_pskel*> (base); + parser_used_->pre (); + } + else + parser_used_ = 0; // No parser for this type. + + return parser_used_; + } + + // This function is called to indicate the completion of document + // parsing. The parser argument contains the pointer returned by + // start_root_element. + // + virtual void + end_root_element (const ro_string& /* ns */, + const ro_string& /* name */, + xml_schema::parser_base* /* parser */) + { + // Instead of caching the current parser in parser_used_, we + // could also dynamic_cast the parser argument to the person_pskel + // type. + // + if (parser_used_) + parser_used_->post_person (); + } + + +private: + const xml_schema::parser_map& parser_map_; + person_pskel* parser_used_; +}; + +int +main (int argc, char* argv[]) +{ + if (argc != 2) + { + cerr << "usage: " << argv[0] << " instance.xml" << endl; + return 1; + } + + try + { + // Construct the parser. + // + xml_schema::string_pimpl string_p; + xml_schema::boolean_pimpl boolean_p; + xml_schema::unsigned_int_pimpl unsigned_int_p; + + person_pimpl person_p; + superman_pimpl superman_p; + batman_pimpl batman_p; + + person_p.parsers (string_p); + superman_p.parsers (string_p, boolean_p); + batman_p.parsers (string_p, boolean_p, unsigned_int_p); + + // Parse the XML document. + // + xml_schema::parser_map_impl person_map; + + person_map.insert (person_p); + person_map.insert (superman_p); + person_map.insert (batman_p); + + document doc_p (person_map); + + doc_p.parse (argv[1]); + } + catch (const xml_schema::exception& e) + { + cerr << e << endl; + return 1; + } + catch (const std::ios_base::failure&) + { + cerr << argv[1] << ": unable to open or read failure" << endl; + return 1; + } +} diff --git a/xsd-examples/cxx/parser/polyroot/person.xml b/xsd-examples/cxx/parser/polyroot/person.xml new file mode 100644 index 0000000..2182457 --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/person.xml @@ -0,0 +1,15 @@ +<?xml version="1.0"?> + +<!-- + +file : cxx/parser/polyroot/person.xml +copyright : not copyrighted - public domain + +--> + +<person xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" + xsi:noNamespaceSchemaLocation="supermen.xsd"> + + <name>John Doe</name> + +</person> diff --git a/xsd-examples/cxx/parser/polyroot/superman.xml b/xsd-examples/cxx/parser/polyroot/superman.xml new file mode 100644 index 0000000..97dbf1b --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/superman.xml @@ -0,0 +1,16 @@ +<?xml version="1.0"?> + +<!-- + +file : cxx/parser/polyroot/superman.xml +copyright : not copyrighted - public domain + +--> + +<person xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" + xsi:noNamespaceSchemaLocation="supermen.xsd" + xsi:type="superman" can-fly="false"> + + <name>James "007" Bond</name> + +</person> diff --git a/xsd-examples/cxx/parser/polyroot/supermen-pimpl.cxx b/xsd-examples/cxx/parser/polyroot/supermen-pimpl.cxx new file mode 100644 index 0000000..d35e1fd --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/supermen-pimpl.cxx @@ -0,0 +1,85 @@ +// file : cxx/parser/polyroot/supermen-pimpl.cxx +// copyright : not copyrighted - public domain +// + +#include <iostream> + +#include "supermen-pimpl.hxx" + +using std::cout; +using std::endl; + +// person_pimpl +// +void person_pimpl:: +pre () +{ + cout << "starting to parse person" << endl; +} + +void person_pimpl:: +name (const std::string& v) +{ + cout << "name: " << v << endl; +} + +void person_pimpl:: +post_person () +{ + cout << "finished parsing person" << endl + << endl; +} + +// superman_pimpl +// +void superman_pimpl:: +pre () +{ + cout << "starting to parse superman" << endl; +} + +void superman_pimpl:: +can_fly (bool v) +{ + cout << "can-fly: " << v << endl; +} + +void superman_pimpl:: +post_person () +{ + post_superman (); +} + +void superman_pimpl:: +post_superman () +{ + cout << "finished parsing superman" << endl + << endl; +} + +// batman_pimpl +// +void batman_pimpl:: +pre () +{ + cout << "starting to parse batman" << endl; +} + +void batman_pimpl:: +wing_span (unsigned int v) +{ + cout << "wing-span: " << v << endl; +} + +void batman_pimpl:: +post_superman () +{ + post_batman (); +} + +void batman_pimpl:: +post_batman () +{ + cout << "finished parsing batman" << endl + << endl; +} diff --git a/xsd-examples/cxx/parser/polyroot/supermen-pimpl.hxx b/xsd-examples/cxx/parser/polyroot/supermen-pimpl.hxx new file mode 100644 index 0000000..17ce7ff --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/supermen-pimpl.hxx @@ -0,0 +1,64 @@ +// file : cxx/parser/polyroot/supermen-pimpl.hxx +// copyright : not copyrighted - public domain + +#ifndef SUPERMEN_PIMPL_HXX +#define SUPERMEN_PIMPL_HXX + +#include "supermen-pskel.hxx" + +class person_pimpl: public virtual person_pskel +{ +public: + virtual void + pre (); + + virtual void + name (const std::string&); + + virtual void + post_person (); +}; + +class superman_pimpl: public virtual superman_pskel, + public person_pimpl +{ +public: + virtual void + pre (); + + virtual void + can_fly (bool); + + // By default, post_superman() calls post_person(). In case of + // polymorphic parsing we want the opposite: post_person() calls + // post_superman(). + // + virtual void + post_person (); + + virtual void + post_superman (); +}; + +class batman_pimpl: public virtual batman_pskel, + public superman_pimpl +{ +public: + virtual void + pre (); + + virtual void + wing_span (unsigned int); + + // By default, post_batman() calls post_superman(). In case of + // polymorphic parsing we want the opposite: post_superman() + // calls post_batman(). + // + virtual void + post_superman (); + + virtual void + post_batman (); +}; + +#endif // SUPERMEN_PIMPL_HXX diff --git a/xsd-examples/cxx/parser/polyroot/supermen.xsd b/xsd-examples/cxx/parser/polyroot/supermen.xsd new file mode 100644 index 0000000..e397b50 --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/supermen.xsd @@ -0,0 +1,36 @@ +<?xml version="1.0"?> + +<!-- + +file : cxx/parser/polyroot/supermen.xsd +copyright : not copyrighted - public domain + +--> + +<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"> + + <xsd:complexType name="person"> + <xsd:sequence> + <xsd:element name="name" type="xsd:string"/> + </xsd:sequence> + </xsd:complexType> + + <xsd:element name="person" type="person"/> + + <xsd:complexType name="superman"> + <xsd:complexContent> + <xsd:extension base="person"> + <xsd:attribute name="can-fly" type="xsd:boolean" use="required"/> + </xsd:extension> + </xsd:complexContent> + </xsd:complexType> + + <xsd:complexType name="batman"> + <xsd:complexContent> + <xsd:extension base="superman"> + <xsd:attribute name="wing-span" type="xsd:unsignedInt" use="required"/> + </xsd:extension> + </xsd:complexContent> + </xsd:complexType> + +</xsd:schema> diff --git a/xsd-examples/cxx/parser/polyroot/testscript b/xsd-examples/cxx/parser/polyroot/testscript new file mode 100644 index 0000000..c5ad682 --- /dev/null +++ b/xsd-examples/cxx/parser/polyroot/testscript @@ -0,0 +1,6 @@ +# file : cxx/parser/polyroot/testscript +# license : not copyrighted - public domain + +$* $src_base/batman.xml >| : batman +$* $src_base/person.xml >| : person +$* $src_base/superman.xml >| : superman |