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-rw-r--r--examples/cxx/parser/mixin/README34
-rw-r--r--examples/cxx/parser/mixin/driver.cxx104
-rw-r--r--examples/cxx/parser/mixin/instance.xml17
-rw-r--r--examples/cxx/parser/mixin/makefile68
-rw-r--r--examples/cxx/parser/mixin/schema.map8
-rw-r--r--examples/cxx/parser/mixin/schema.xsd31
-rw-r--r--examples/cxx/parser/mixin/types.hxx44
7 files changed, 306 insertions, 0 deletions
diff --git a/examples/cxx/parser/mixin/README b/examples/cxx/parser/mixin/README
new file mode 100644
index 0000000..343e379
--- /dev/null
+++ b/examples/cxx/parser/mixin/README
@@ -0,0 +1,34 @@
+This example shows how to reuse implementations of base parsers
+in derived parsers using the mixin C++ idiom.
+
+The example consists of the following files:
+
+schema.xsd
+ XML Schema which defined two data types: base and
+ derived.
+
+instance.xml
+ Sample XML instance document.
+
+types.hxx
+ C++ classes that correspond to the base and derived
+ types in schema.xsd.
+
+schema.map
+ Type map. It maps XML Schema types defined in schema.xsd
+ to C++ types defined in types.hxx.
+
+schema-pskel.hxx
+schema-pskel.cxx
+ Parser skeletons generated by XSD from schema.xsd and
+ schema.map.
+
+driver.cxx
+ Parser implementations and a driver for the example. It
+ shows how to mix the implementation of the base parser
+ into the derived parser.
+
+To run the example on the sample XML instance document simply
+execute:
+
+$ ./driver instance.xml
diff --git a/examples/cxx/parser/mixin/driver.cxx b/examples/cxx/parser/mixin/driver.cxx
new file mode 100644
index 0000000..41e5a45
--- /dev/null
+++ b/examples/cxx/parser/mixin/driver.cxx
@@ -0,0 +1,104 @@
+// file : examples/cxx/parser/mixin/driver.cxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#include <memory>
+#include <iostream>
+
+#include "types.hxx"
+#include "schema-pskel.hxx"
+
+using namespace std;
+
+struct base_pimpl: virtual base_pskel
+{
+ virtual void
+ pre ()
+ {
+ base_.reset (new ::base);
+ }
+
+ virtual void
+ a (bool v)
+ {
+ base_->a (v);
+ }
+
+ virtual base*
+ post_base ()
+ {
+ return base_.release ();
+ }
+
+protected:
+ auto_ptr<base> base_;
+};
+
+// Implement derived parser by mixing-in base's implementation.
+//
+struct derived_pimpl: derived_pskel, base_pimpl
+{
+ virtual void
+ pre ()
+ {
+ // Override base's pre() with the new implementation that
+ // instantiates derived instead of base.
+ //
+ base_.reset (new ::derived);
+ }
+
+ virtual void
+ b (int v)
+ {
+ // We could also store a pointer to derived in derived_impl to
+ // avoid casting.
+ //
+ static_cast< ::derived* > (base_.get ())->b (v);
+ }
+
+ virtual derived*
+ post_derived ()
+ {
+ return static_cast<derived*> (base_.release ());
+ }
+};
+
+int
+main (int argc, char* argv[])
+{
+ if (argc != 2)
+ {
+ cerr << "usage: " << argv[0] << " instance.xml" << endl;
+ return 1;
+ }
+
+ try
+ {
+ // Construct the parser.
+ //
+ xml_schema::boolean_pimpl bool_p;
+ xml_schema::int_pimpl int_p;
+ derived_pimpl derived_p;
+
+ derived_p.parsers (bool_p, int_p);
+
+ xml_schema::document doc_p (derived_p, "root");
+
+ derived_p.pre ();
+ doc_p.parse (argv[1]);
+ auto_ptr<derived> d (derived_p.post_derived ());
+
+ cerr << "a: " << boolalpha << d->a () << endl;
+ cerr << "b: " << d->b () << endl;
+ }
+ 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/examples/cxx/parser/mixin/instance.xml b/examples/cxx/parser/mixin/instance.xml
new file mode 100644
index 0000000..265271b
--- /dev/null
+++ b/examples/cxx/parser/mixin/instance.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+
+<!--
+
+file : examples/cxx/parser/mixin/instance.xml
+author : Boris Kolpackov <boris@codesynthesis.com>
+copyright : not copyrighted - public domain
+
+-->
+
+<root xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:noNamespaceSchemaLocation="schema.xsd">
+
+ <a>true</a>
+ <b>1</b>
+
+</root>
diff --git a/examples/cxx/parser/mixin/makefile b/examples/cxx/parser/mixin/makefile
new file mode 100644
index 0000000..91030be
--- /dev/null
+++ b/examples/cxx/parser/mixin/makefile
@@ -0,0 +1,68 @@
+# file : examples/cxx/parser/mixin/makefile
+# author : Boris Kolpackov <boris@codesynthesis.com>
+# copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
+# license : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+include $(dir $(lastword $(MAKEFILE_LIST)))../../../../build/bootstrap.make
+
+xsd := schema.xsd
+cxx := driver.cxx
+
+obj := $(addprefix $(out_base)/,$(cxx:.cxx=.o) $(xsd:.xsd=-pskel.o))
+dep := $(obj:.o=.o.d)
+
+driver := $(out_base)/driver
+clean := $(out_base)/.clean
+
+
+# Import.
+#
+$(call import,\
+ $(scf_root)/import/libxerces-c/stub.make,\
+ l: xerces_c.l,cpp-options: xerces_c.l.cpp-options)
+
+
+# Build.
+#
+$(driver): $(obj) $(xerces_c.l)
+
+$(obj) $(dep): cpp_options := -I$(src_root)/libxsd
+$(obj) $(dep): $(xerces_c.l.cpp-options)
+
+skel := $(out_base)/$(xsd:.xsd=-pskel.hxx) \
+ $(out_base)/$(xsd:.xsd=-pskel.ixx) \
+ $(out_base)/$(xsd:.xsd=-pskel.cxx)
+
+$(skel): xsd := $(out_root)/xsd/xsd
+$(skel): xsd_options := --type-map $(src_base)/schema.map
+$(skel): $(out_root)/xsd/xsd $(src_base)/schema.map
+
+$(call include-dep,$(dep))
+
+# Convenience alias for default target.
+#
+.PHONY: $(out_base)/
+$(out_base)/: $(driver)
+
+
+# Clean.
+#
+.PHONY: $(clean)
+
+$(clean): $(driver).o.clean \
+ $(addsuffix .cxx.clean,$(obj)) \
+ $(addsuffix .cxx.clean,$(dep)) \
+ $(addprefix $(out_base)/,$(xsd:.xsd=-pskel.cxx.xsd.clean))
+
+
+# How to.
+#
+$(call include,$(bld_root)/cxx/o-e.make)
+$(call include,$(bld_root)/cxx/cxx-o.make)
+$(call include,$(bld_root)/cxx/cxx-d.make)
+$(call include,$(scf_root)/xsd/parser/xsd-cxx.make)
+
+
+# Dependencies.
+#
+$(call import,$(src_root)/xsd/makefile)
diff --git a/examples/cxx/parser/mixin/schema.map b/examples/cxx/parser/mixin/schema.map
new file mode 100644
index 0000000..22edb1e
--- /dev/null
+++ b/examples/cxx/parser/mixin/schema.map
@@ -0,0 +1,8 @@
+# file : examples/cxx/parser/mixin/schema.map
+# author : Boris Kolpackov <boris@codesynthesis.com>
+# copyright : not copyrighted - public domain
+
+include "types.hxx";
+
+base ::base*;
+derived ::derived*;
diff --git a/examples/cxx/parser/mixin/schema.xsd b/examples/cxx/parser/mixin/schema.xsd
new file mode 100644
index 0000000..59d8d3b
--- /dev/null
+++ b/examples/cxx/parser/mixin/schema.xsd
@@ -0,0 +1,31 @@
+<?xml version="1.0"?>
+
+<!--
+
+file : examples/cxx/parser/mixin/schema.xsd
+author : Boris Kolpackov <boris@codesynthesis.com>
+copyright : not copyrighted - public domain
+
+-->
+
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+
+ <xsd:complexType name="base">
+ <xsd:sequence>
+ <xsd:element name="a" type="xsd:boolean"/>
+ </xsd:sequence>
+ </xsd:complexType>
+
+ <xsd:complexType name="derived">
+ <xsd:complexContent>
+ <xsd:extension base="base">
+ <xsd:sequence>
+ <xsd:element name="b" type="xsd:int"/>
+ </xsd:sequence>
+ </xsd:extension>
+ </xsd:complexContent>
+ </xsd:complexType>
+
+ <xsd:element name="root" type="derived"/>
+
+</xsd:schema>
diff --git a/examples/cxx/parser/mixin/types.hxx b/examples/cxx/parser/mixin/types.hxx
new file mode 100644
index 0000000..708dfc3
--- /dev/null
+++ b/examples/cxx/parser/mixin/types.hxx
@@ -0,0 +1,44 @@
+// file : examples/cxx/parser/mixin/types.hxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#ifndef TYPES_HXX
+#define TYPES_HXX
+
+struct base
+{
+ bool
+ a () const
+ {
+ return a_;
+ }
+
+ void
+ a (bool v)
+ {
+ a_ = v;
+ }
+
+private:
+ bool a_;
+};
+
+struct derived: base
+{
+ int
+ b () const
+ {
+ return b_;
+ }
+
+ void
+ b (int v)
+ {
+ b_ = v;
+ }
+
+private:
+ int b_;
+};
+
+#endif // TYPES_HXX