From 818bedc799073966a4c56fd83ab1df358b9e9c24 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 29 Apr 2014 11:04:19 +0200
Subject: Add value<T> version, analogous to attribute<T>

---
 tests/parser/driver.cxx | 11 +++++++++++
 xml/parser.hxx          |  1 +
 xml/parser.ixx          |  7 +++++++
 3 files changed, 19 insertions(+)

diff --git a/tests/parser/driver.cxx b/tests/parser/driver.cxx
index b882188..c5d18f0 100644
--- a/tests/parser/driver.cxx
+++ b/tests/parser/driver.cxx
@@ -84,6 +84,17 @@ main ()
     // cerr << e.what () << endl;
   }
 
+  // Test value extraction.
+  //
+  {
+    istringstream is ("<root>123</root>");
+    parser p (is, "test");
+    p.next_expect (parser::start_element, "root");
+    p.next_expect (parser::characters);
+    assert (p.value<int> () == 123);
+    p.next_expect (parser::end_element);
+  }
+
   // Test attribute maps.
   //
   {
diff --git a/xml/parser.hxx b/xml/parser.hxx
index f3a2e34..b9b5d4c 100644
--- a/xml/parser.hxx
+++ b/xml/parser.hxx
@@ -208,6 +208,7 @@ namespace xml
     const std::string& prefix () const {return pqname_->prefix ();}
 
     const std::string& value () const {return *pvalue_;}
+    template <typename T> T value () const;
 
     unsigned long long line () const {return line_;}
     unsigned long long column () const {return column_;}
diff --git a/xml/parser.ixx b/xml/parser.ixx
index adb8751..ac27b46 100644
--- a/xml/parser.ixx
+++ b/xml/parser.ixx
@@ -6,6 +6,13 @@
 
 namespace xml
 {
+  template <typename T>
+  inline T parser::
+  value () const
+  {
+    return value_traits<T>::parse (value (), *this);
+  }
+
   inline const std::string& parser::
   attribute (const std::string& n) const
   {
-- 
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