Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 244 insertions, 0 deletions

diff --git a/src/boost/libs/spirit/example/karma/auto_facilities.cpp b/src/boost/libs/spirit/example/karma/auto_facilities.cpp
new file mode 100644
index 00000000..b094f40a
--- /dev/null
+++ b/src/boost/libs/spirit/example/karma/auto_facilities.cpp
@@ -0,0 +1,244 @@
+//  Copyright (c) 2001-2010 Hartmut Kaiser
+// 
+//  Distributed under the Boost Software License, Version 1.0. (See accompanying 
+//  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  The main purpose of this example is to show the uniform and easy way of
+//  output formatting for different container types. 
+//
+//  The 'auto_' primitive used below is very similar to the 'stream' primitive
+//  demonstrated in the example 'basic_facilities.cpp' as it allows to generate
+//  output from a multitude of data types. The main difference is that it is
+//  mapped to the correct Karma generator instead of using any available 
+//  operator<<() for the contained data type. Additionally this means, that
+//  the format descriptions used below will be usable for any contained type as
+//  long as this type has a defined mapping to a Karma generator.
+
+//  use a larger value for the alignment field width (default is 10)
+#define BOOST_KARMA_DEFAULT_FIELD_LENGTH 25
+
+#include <boost/config/warning_disable.hpp>
+
+#include <iostream>
+#include <string>
+#include <vector>
+#include <list>
+#include <map>
+#include <algorithm>
+#include <cstdlib> 
+
+#include <boost/range.hpp>
+#include <boost/array.hpp>
+#include <boost/fusion/include/std_pair.hpp>
+#include <boost/fusion/include/array.hpp>
+
+#include <boost/spirit/include/karma.hpp>
+
+using namespace boost::spirit;
+using namespace boost::spirit::ascii;
+
+///////////////////////////////////////////////////////////////////////////////
+namespace boost { namespace spirit { namespace traits
+{
+    // We add a specialization for the create_generator customization point
+    // defining a custom output format for the value type of the std::map used
+    // below (std::pair<int const, std::string>). Generally, any specialization 
+    // for create_generator is expected to return the proto expression to be 
+    // used to generate output for the type the customization point has been 
+    // specialized for.
+    //
+    // We need to utilize proto::deep_copy as the expression contains a literal 
+    // (the ':') which normally gets embedded in the proto expression by 
+    // reference only. The deep copy converts the proto tree to hold this by 
+    // value. The deep copy operation can be left out for simpler proto 
+    // expressions (not containing references to temporaries). Alternatively
+    // you could use the proto::make_expr() facility to build the required
+    // proto expression.
+    template <>
+    struct create_generator<std::pair<int const, std::string> >
+    {
+        typedef proto::result_of::deep_copy<
+            BOOST_TYPEOF(int_ << ':' << string)
+        >::type type;
+
+        static type call()
+        {
+            return proto::deep_copy(int_ << ':' << string);
+        }
+    };
+}}}
+
+///////////////////////////////////////////////////////////////////////////////
+// Output the given containers in list format
+// Note: the format description does not depend on the type of the sequence
+//       nor does it depend on the type of the elements contained in the 
+//       sequence
+///////////////////////////////////////////////////////////////////////////////
+template <typename Container>
+void output_container(std::ostream& os, Container const& c)
+{
+    // output the container as a sequence without separators
+    os << 
+        karma::format(
+            auto_,                                // format description
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    os << 
+        karma::format(
+            *auto_,                               // format description
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    // output the container as a space separated sequence
+    os << 
+        karma::format_delimited(
+            auto_,                                // format description
+            space,                                // delimiter
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    os << 
+        karma::format_delimited(
+            *auto_,                               // format description
+            space,                                // delimiter
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    os << 
+        karma::format_delimited(
+            '[' << *auto_ << ']',                 // format description
+            space,                                // delimiter
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    // output the container as a comma separated list
+    os << 
+        karma::format(
+            auto_ % ", ",                         // format description
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    os << 
+        karma::format(
+            '[' << (auto_ % ", ") << ']',         // format description
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    os << 
+        karma::format(
+            '[' << -(auto_ % ", ") << ']',        // format description
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    os << 
+        karma::format(
+            '[' << (+auto_ | "empty") << ']',     // format description
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    // output the container as a comma separated list of items enclosed in '()'
+    os << 
+        karma::format(
+            ('(' << auto_ << ')') % ", ",         // format description
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    os << 
+        karma::format(
+            '[' << (  
+                ('(' << auto_ << ')') % ", "
+             )  << ']',                           // format description
+            c                                     // data
+        ) << std::endl << std::endl;
+
+    // output the container as a HTML list
+    os << 
+        karma::format_delimited(
+            "<ol>" << 
+                *verbatim["<li>" << auto_ << "</li>"]
+            << "</ol>",                           // format description
+            '\n',                                 // delimiter
+            c                                     // data
+        ) << std::endl;
+
+    // output the container as right aligned column
+    os << 
+        karma::format_delimited(
+           *verbatim[
+                "|" << right_align[auto_] << "|"
+            ],                                    // format description
+            '\n',                                 // delimiter
+            c                                     // data
+        ) << std::endl;
+
+    os << std::endl;
+}
+
+int main()
+{
+    ///////////////////////////////////////////////////////////////////////////
+    // C-style array
+    int i[4] = { 3, 6, 9, 12 };
+
+    std::cout << "-------------------------------------------------------------" 
+              << std::endl;
+    std::cout << "int i[]" << std::endl;
+    output_container(std::cout, boost::make_iterator_range(i, i+4));
+
+    ///////////////////////////////////////////////////////////////////////////
+    // vector
+    std::vector<int> v (5);
+    std::generate(v.begin(), v.end(), std::rand); // randomly fill the vector
+
+    std::cout << "-------------------------------------------------------------" 
+              << std::endl;
+    std::cout << "std::vector<int>" << std::endl;
+    output_container(std::cout, v);
+
+    ///////////////////////////////////////////////////////////////////////////
+    // list
+    std::list<char> l;
+    l.push_back('A');
+    l.push_back('B');
+    l.push_back('C');
+
+    std::cout << "-------------------------------------------------------------" 
+              << std::endl;
+    std::cout << "std::list<char>" << std::endl;
+    output_container(std::cout, l);
+
+    ///////////////////////////////////////////////////////////////////////////
+    // strings
+    std::string str("Hello world!");
+
+    std::cout << "-------------------------------------------------------------" 
+              << std::endl;
+    std::cout << "std::string" << std::endl;
+    output_container(std::cout, str);
+
+    ///////////////////////////////////////////////////////////////////////////
+    // boost::array
+    boost::array<long, 5> arr;
+    std::generate(arr.begin(), arr.end(), std::rand); // randomly fill the array
+
+    std::cout << "-------------------------------------------------------------" 
+              << std::endl;
+    std::cout << "boost::array<long, 5>" << std::endl;
+    output_container(std::cout, arr);
+
+    ///////////////////////////////////////////////////////////////////////////
+    //  map of int --> string mappings
+    std::map<int, std::string> mappings;
+    mappings.insert(std::make_pair(0, "zero"));
+    mappings.insert(std::make_pair(1, "one"));
+    mappings.insert(std::make_pair(2, "two"));
+
+    std::cout << "-------------------------------------------------------------" 
+              << std::endl;
+    std::cout << "std::map<int, std::string>" << std::endl;
+    output_container(std::cout, mappings);
+
+    return 0;
+}
+