From fec681be83c91268ee4db97f34ce4e47179316dd Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 8 May 2014 17:50:12 -0700
Subject: Add helpers for serializing elements with simple content

---
 tests/serializer/driver.cxx | 36 +++++++++++++++++++++++++++++++++
 xml/serializer.cxx          |  7 +++++++
 xml/serializer.hxx          | 36 +++++++++++++++++++++++++++++++++
 xml/serializer.ixx          | 49 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 128 insertions(+)

diff --git a/tests/serializer/driver.cxx b/tests/serializer/driver.cxx
index 7e56efc..0f22107 100644
--- a/tests/serializer/driver.cxx
+++ b/tests/serializer/driver.cxx
@@ -63,4 +63,40 @@ main ()
 
     assert (os.str () == "<root version=\"123\">true</root>\n");
   }
+
+  // Test helpers for serializing elements with simple content.
+  //
+  {
+    ostringstream os;
+    serializer s (os, "element", 0);
+
+    s.start_element ("root");
+
+    s.start_element ("nested");
+    s.element ("X");
+
+    s.start_element ("nested");
+    s.element (123);
+
+    s.element ("nested", "X");
+    s.element ("nested", 123);
+    s.element ("test", "nested", "X");
+    s.element ("test", "nested", 123);
+    s.element (qname ("test", "nested"), "X");
+    s.element (qname ("test", "nested"), 123);
+
+    s.end_element (); // root
+
+    assert (os.str () ==
+            "<root>"
+            "<nested>X</nested>"
+            "<nested>123</nested>"
+            "<nested>X</nested>"
+            "<nested>123</nested>"
+            "<g1:nested xmlns:g1=\"test\">X</g1:nested>"
+            "<g1:nested xmlns:g1=\"test\">123</g1:nested>"
+            "<g1:nested xmlns:g1=\"test\">X</g1:nested>"
+            "<g1:nested xmlns:g1=\"test\">123</g1:nested>"
+            "</root>\n");
+  }
 }
diff --git a/xml/serializer.cxx b/xml/serializer.cxx
index 8147f91..a6afcca 100644
--- a/xml/serializer.cxx
+++ b/xml/serializer.cxx
@@ -173,6 +173,13 @@ namespace xml
   }
 
   void serializer::
+  element (const string& ns, const string& n, const string& v)
+  {
+    start_element (ns, n);
+    element (v);
+  }
+
+  void serializer::
   start_attribute (const string& ns, const string& name)
   {
     if (genxStatus e = genxStartAttributeLiteral (
diff --git a/xml/serializer.hxx b/xml/serializer.hxx
index e0041f9..d07221d 100644
--- a/xml/serializer.hxx
+++ b/xml/serializer.hxx
@@ -94,6 +94,42 @@ namespace xml
     void
     end_element ();
 
+    // Helpers for serializing elements with simple content. The first two
+    // functions assume that start_element() has already been called. The
+    // other two serialize the complete element, from start to end.
+    //
+    void
+    element (const std::string& value);
+
+    template <typename T>
+    void
+    element (const T& value);
+
+    void
+    element (const std::string& name, const std::string& value);
+
+    template <typename T>
+    void
+    element (const std::string& name, const T& value);
+
+    void
+    element (const qname_type& qname, const std::string& value);
+
+    template <typename T>
+    void
+    element (const qname_type& qname, const T& value);
+
+    void
+    element (const std::string& namespace_,
+             const std::string& name,
+             const std::string& value);
+
+    template <typename T>
+    void
+    element (const std::string& namespace_,
+             const std::string& name,
+             const T& value);
+
     // Attributes.
     //
     void
diff --git a/xml/serializer.ixx b/xml/serializer.ixx
index d329bbd..81631f2 100644
--- a/xml/serializer.ixx
+++ b/xml/serializer.ixx
@@ -19,6 +19,55 @@ namespace xml
   }
 
   inline void serializer::
+  element (const std::string& v)
+  {
+    if (!v.empty ())
+      characters (v);
+
+    end_element ();
+  }
+
+  template <typename T>
+  inline void serializer::
+  element (const T& v)
+  {
+    element (value_traits<T>::serialize (v, *this));
+  }
+
+  inline void serializer::
+  element (const std::string& n, const std::string& v)
+  {
+    element (std::string (), n, v);
+  }
+
+  template <typename T>
+  inline void serializer::
+  element (const std::string& n, const T& v)
+  {
+    element (n, value_traits<T>::serialize (v, *this));
+  }
+
+  inline void serializer::
+  element (const qname_type& qn, const std::string& v)
+  {
+    element (qn.namespace_ (), qn.name (), v);
+  }
+
+  template <typename T>
+  inline void serializer::
+  element (const qname_type& qn, const T& v)
+  {
+    element (qn, value_traits<T>::serialize (v, *this));
+  }
+
+  template <typename T>
+  inline void serializer::
+  element (const std::string& ns, const std::string& n, const T& v)
+  {
+    element (ns, n, value_traits<T>::serialize (v, *this));
+  }
+
+  inline void serializer::
   start_attribute (const qname_type& qname)
   {
     start_attribute (qname.namespace_ (), qname.name ());
-- 
cgit v1.1