From f0510d2f90467de8e8f260b47d79a9baaf9bef17 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 17 Sep 2009 07:15:29 +0200
Subject: Start tracking XSD with git

---
 examples/cxx/tree/binary/xdr/README      |  34 +++++++
 examples/cxx/tree/binary/xdr/driver.cxx  | 149 +++++++++++++++++++++++++++++++
 examples/cxx/tree/binary/xdr/library.xml |  53 +++++++++++
 examples/cxx/tree/binary/xdr/library.xsd |  76 ++++++++++++++++
 examples/cxx/tree/binary/xdr/makefile    |  78 ++++++++++++++++
 5 files changed, 390 insertions(+)
 create mode 100644 examples/cxx/tree/binary/xdr/README
 create mode 100644 examples/cxx/tree/binary/xdr/driver.cxx
 create mode 100644 examples/cxx/tree/binary/xdr/library.xml
 create mode 100644 examples/cxx/tree/binary/xdr/library.xsd
 create mode 100644 examples/cxx/tree/binary/xdr/makefile

(limited to 'examples/cxx/tree/binary/xdr')

diff --git a/examples/cxx/tree/binary/xdr/README b/examples/cxx/tree/binary/xdr/README
new file mode 100644
index 0000000..22d5693
--- /dev/null
+++ b/examples/cxx/tree/binary/xdr/README
@@ -0,0 +1,34 @@
+This example shows how to save/load the object model to/from XDR
+(eXternal Data Representation) binary format using XDR streams.
+The XDR API is available out of the box on most UNIX and GNU/Linux
+systems as part of Sun RPC. On Windows you may need to install a
+third-party library which provides the XDR API.
+
+The example consists of the following files:
+
+library.xsd
+  XML Schema which describes a library of books.
+
+library.xml
+  Sample XML instance document.
+
+library.hxx
+library.cxx
+  C++ types that represent the given vocabulary as well as data
+  representation stream insertion and extraction operations. These
+  are generated by XSD from library.xsd. Note that the
+  --generate-insertion and --generate-extraction options are used
+  to generate the insertion and extraction operations for XDR
+  stream.
+
+driver.cxx
+  Driver for the example. It first calls one of the parsing functions
+  that constructs the object model from the input XML file. It then
+  saves the object model to the XDR representation and loads it back.
+  Additionally, it prints the content of the object model before saving
+  it to the XDR representation and after loading it from the XDR
+  representation.
+
+To run the example on the sample XML instance document simply execute:
+
+$ ./driver library.xml
diff --git a/examples/cxx/tree/binary/xdr/driver.cxx b/examples/cxx/tree/binary/xdr/driver.cxx
new file mode 100644
index 0000000..495eafc
--- /dev/null
+++ b/examples/cxx/tree/binary/xdr/driver.cxx
@@ -0,0 +1,149 @@
+// file      : examples/cxx/tree/binary/xdr/driver.cxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : not copyrighted - public domain
+
+#include <memory>   // std::auto_ptr
+#include <cstring>  // std::memcpy
+#include <cstddef>  // std::size_t
+#include <iostream>
+
+#include <rpc/types.h>
+#include <rpc/xdr.h>
+
+#include "library.hxx"
+
+using std::cerr;
+using std::endl;
+using std::size_t;
+
+// XDR output functions. Their implementations are provided after main().
+//
+struct underflow_info
+{
+  xml_schema::buffer* buf;
+  size_t pos;
+};
+
+extern "C" int
+overflow (void* user_data, char* buf, int n);
+
+extern "C" int
+underflow (void* user_data, char* buf, int n);
+
+// The xdrrec_create function (used below) has slightly different
+// prototypes on different platforms. To make this example portable
+// we will need to cast the actual function to the following common
+// prototype.
+//
+extern "C"
+typedef  void (*xdrrec_create_p) (
+  XDR*,
+  unsigned int write_size,
+  unsigned int read_size,
+  void* user_data,
+  int (*read) (void* user_data, char* buf, int n),
+  int (*write) (void* user_data, char* buf, int n));
+
+int
+main (int argc, char* argv[])
+{
+  if (argc != 2)
+  {
+    cerr << "usage: " << argv[0] << " library.xml" << endl;
+    return 1;
+  }
+
+  try
+  {
+    using namespace library;
+
+    xdrrec_create_p xdrrec_create_ =
+      reinterpret_cast<xdrrec_create_p> (::xdrrec_create);
+
+    // Read in the file.
+    //
+    std::auto_ptr<catalog> c (catalog_ (argv[1]));
+
+    cerr << *c << endl;
+
+    // Save to an XDR stream.
+    //
+    XDR xdr;
+    xml_schema::buffer buf;
+
+    xdrrec_create_ (&xdr, 0, 0, reinterpret_cast<char*> (&buf), 0, &overflow);
+    xdr.x_op = XDR_ENCODE;
+
+    xml_schema::ostream<XDR> oxdr (xdr);
+
+    oxdr << *c;
+
+    xdrrec_endofrecord (&xdr, true); // Flush the data.
+    xdr_destroy (&xdr);
+
+    // The binary representation is now in the memory buffer 'buf'.
+    // To get to the raw data use buf.data() and buf.size().
+    //
+    cerr << endl
+         << "binary representation size: " << buf.size () << endl;
+
+    // Load from an XDR stream.
+    //
+    underflow_info ui;
+    ui.buf = &buf;
+    ui.pos = 0;
+
+    xdrrec_create_ (&xdr, 0, 0, reinterpret_cast<char*> (&ui), &underflow, 0);
+    xdr.x_op = XDR_DECODE;
+
+    xdrrec_skiprecord (&xdr);
+
+    xml_schema::istream<XDR> ixdr (xdr);
+
+    std::auto_ptr<catalog> copy (new catalog (ixdr));
+
+    xdr_destroy (&xdr);
+
+    cerr << *copy << endl;
+  }
+  catch (const xml_schema::exception& e)
+  {
+    cerr << e << endl;
+    return 1;
+  }
+}
+
+extern "C" int
+overflow (void* p, char* buf, int n_)
+{
+  xml_schema::buffer* dst (reinterpret_cast<xml_schema::buffer*> (p));
+  size_t n (static_cast<size_t> (n_));
+
+  size_t size (dst->size ());
+  size_t capacity (dst->capacity ());
+
+  // Implement exponential growth.
+  //
+  if (size + n > capacity && size + n < capacity * 2)
+    dst->capacity (capacity * 2);
+
+  dst->size (size + n);
+  std::memcpy (dst->data () + size, buf, n);
+
+  return n;
+}
+
+extern "C" int
+underflow (void* p, char* buf, int n_)
+{
+  underflow_info* ui (reinterpret_cast<underflow_info*> (p));
+  size_t n (static_cast<size_t> (n_));
+
+  size_t size (ui->buf->size () - ui->pos);
+  n = size > n ? n : size;
+
+  std::memcpy (buf, ui->buf->data () + ui->pos, n);
+  ui->pos += n;
+
+  return n;
+}
diff --git a/examples/cxx/tree/binary/xdr/library.xml b/examples/cxx/tree/binary/xdr/library.xml
new file mode 100644
index 0000000..9ddcd5a
--- /dev/null
+++ b/examples/cxx/tree/binary/xdr/library.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : examples/cxx/tree/binary/xdr/library.xml
+author    : Boris Kolpackov <boris@codesynthesis.com>
+copyright : not copyrighted - public domain
+
+-->
+
+<lib:catalog xmlns:lib="http://www.codesynthesis.com/library"
+             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	     xsi:schemaLocation="http://www.codesynthesis.com/library library.xsd">
+
+  <book id="MM" available="false">
+    <isbn>0679760806</isbn>
+    <title>The Master and Margarita</title>
+    <genre>fiction</genre>
+
+    <author recommends="WP">
+      <name>Mikhail Bulgakov</name>
+      <born>1891-05-15</born>
+      <died>1940-03-10</died>
+    </author>
+  </book>
+
+
+  <book id="WP">
+    <isbn>0679600841</isbn>
+    <title>War and Peace</title>
+    <genre>history</genre>
+
+    <author recommends="CP">
+      <name>Leo Tolstoy</name>
+      <born>1828-09-09</born>
+      <died>1910-11-20</died>
+    </author>
+  </book>
+
+
+  <book id="CP" available="false">
+    <isbn>0679420290</isbn>
+    <title>Crime and Punishment</title>
+    <genre>philosophy</genre>
+
+    <author>
+      <name>Fyodor Dostoevsky</name>
+      <born>1821-11-11</born>
+      <died>1881-02-09</died>
+    </author>
+  </book>
+
+</lib:catalog>
diff --git a/examples/cxx/tree/binary/xdr/library.xsd b/examples/cxx/tree/binary/xdr/library.xsd
new file mode 100644
index 0000000..9999e72
--- /dev/null
+++ b/examples/cxx/tree/binary/xdr/library.xsd
@@ -0,0 +1,76 @@
+<?xml version="1.0"?>
+
+<!--
+
+file      : examples/cxx/tree/binary/xdr/library.xsd
+author    : Boris Kolpackov <boris@codesynthesis.com>
+copyright : not copyrighted - public domain
+
+-->
+
+<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
+            xmlns:xse="http://www.codesynthesis.com/xmlns/xml-schema-extension"
+            xmlns:lib="http://www.codesynthesis.com/library"
+            targetNamespace="http://www.codesynthesis.com/library">
+
+  <xsd:simpleType name="isbn">
+    <xsd:restriction base="xsd:unsignedInt"/>
+  </xsd:simpleType>
+
+
+  <xsd:complexType name="title">
+    <xsd:simpleContent>
+      <xsd:extension base="xsd:string">
+        <xsd:attribute name="lang" type="xsd:language"/>
+      </xsd:extension>
+    </xsd:simpleContent>
+  </xsd:complexType>
+
+  <xsd:simpleType name="genre">
+    <xsd:restriction base="xsd:string">
+      <xsd:enumeration value="romance"/>
+      <xsd:enumeration value="fiction"/>
+      <xsd:enumeration value="horror"/>
+      <xsd:enumeration value="history"/>
+      <xsd:enumeration value="philosophy"/>
+    </xsd:restriction>
+  </xsd:simpleType>
+
+  <xsd:complexType name="person">
+    <xsd:sequence>
+      <xsd:element name="name" type="xsd:string"/>
+      <xsd:element name="born" type="xsd:date"/>
+      <xsd:element name="died" type="xsd:date" minOccurs="0"/>
+    </xsd:sequence>
+  </xsd:complexType>
+
+  <xsd:complexType name="author">
+    <xsd:complexContent>
+      <xsd:extension base="lib:person">
+	<xsd:attribute name="recommends" type="xsd:IDREF" xse:refType="lib:book"/>
+      </xsd:extension>
+    </xsd:complexContent>
+  </xsd:complexType>
+
+  <xsd:complexType name="book">
+    <xsd:sequence>
+      <xsd:element name="isbn" type="lib:isbn"/>
+      <xsd:element name="title" type="lib:title"/>
+      <xsd:element name="genre" type="lib:genre"/>
+      <xsd:element name="author" type="lib:author" maxOccurs="unbounded"/>
+    </xsd:sequence>
+    <xsd:attribute name="available" type="xsd:boolean" default="true"/>
+    <xsd:attribute name="id" type="xsd:ID" use="required"/>
+  </xsd:complexType>
+
+
+  <xsd:complexType name="catalog">
+    <xsd:sequence>
+      <xsd:element name="book" type="lib:book" maxOccurs="unbounded"/>
+    </xsd:sequence>
+  </xsd:complexType>
+
+
+  <xsd:element name="catalog" type="lib:catalog"/>
+
+</xsd:schema>
diff --git a/examples/cxx/tree/binary/xdr/makefile b/examples/cxx/tree/binary/xdr/makefile
new file mode 100644
index 0000000..6414fe9
--- /dev/null
+++ b/examples/cxx/tree/binary/xdr/makefile
@@ -0,0 +1,78 @@
+# file      : examples/cxx/tree/binary/xdr/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 := library.xsd
+cxx := driver.cxx
+
+obj := $(addprefix $(out_base)/,$(cxx:.cxx=.o) $(xsd:.xsd=.o))
+dep := $(obj:.o=.o.d)
+
+driver := $(out_base)/driver
+clean  := $(out_base)/.clean
+
+
+# Import.
+#
+$(call import,\
+  $(scf_root)/import/libxerces-c/stub.make,\
+  l: xerces_c.l,cpp-options: xerces_c.l.cpp-options)
+
+$(call import,\
+  $(scf_root)/import/libace/stub.make,\
+  l: ace.l,cpp-options: ace.l.cpp-options)
+
+
+# Build.
+#
+$(driver): $(obj) $(xerces_c.l) $(ace.l) -lnsl
+
+$(obj) $(dep): cpp_options := -I$(src_root)/libxsd
+$(obj) $(dep): $(xerces_c.l.cpp-options) $(ace.l.cpp-options)
+
+$(out_base)/$(xsd:.xsd=.hxx) \
+$(out_base)/$(xsd:.xsd=.ixx) \
+$(out_base)/$(xsd:.xsd=.cxx): xsd := $(out_root)/xsd/xsd
+
+$(out_base)/$(xsd:.xsd=.hxx) \
+$(out_base)/$(xsd:.xsd=.ixx) \
+$(out_base)/$(xsd:.xsd=.cxx): xsd_options := \
+--generate-ostream                           \
+--generate-insertion XDR                     \
+--generate-extraction XDR
+
+$(out_base)/$(xsd:.xsd=.hxx) \
+$(out_base)/$(xsd:.xsd=.ixx) \
+$(out_base)/$(xsd:.xsd=.cxx): $(out_root)/xsd/xsd
+
+$(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=.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/tree/xsd-cxx.make)
+
+# Dependencies.
+#
+$(call import,$(src_root)/xsd/makefile)
-- 
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