Implement N3654 - Quoted Strings Library Proposal

2013-06-08  Ed Smith-Rowland  <3dw4rd@verizon.net>

	Implement N3654 - Quoted Strings Library Proposal
	* include/std/iomanip: Add quoted(String, Char delim, Char escape)
	manipulators and supporting machinery in c++1y mode.
	* testsuite/27_io/manipulators/standard/char/quoted.cc: New.
	* testsuite/27_io/manipulators/standard/wchar_t/quoted.cc: New.

From-SVN: r199860

2 files changed, 176 insertions, 0 deletions

diff --git a/libstdc++-v3/testsuite/27_io/manipulators/standard/char/quoted.cc b/libstdc++-v3/testsuite/27_io/manipulators/standard/char/quoted.cc
new file mode 100644
index 0000000..bcfae1e
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/manipulators/standard/char/quoted.cc
@@ -0,0 +1,88 @@
+// { dg-do run }
+// { dg-options "-std=gnu++1y" }
+
+// Copyright (C) 2013 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 27.7.6 - Quoted manipulators		[quoted.manip]
+
+#include <string>
+#include <sstream>
+#include <iomanip>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  //  Basic test from paper.
+  bool test [[gnu::unused]] = true;
+  std::stringstream ss;
+  std::string original = "foolish me";
+  std::string round_trip;
+  ss << std::quoted(original);
+  ss >> std::quoted(round_trip);
+  VERIFY( original == round_trip );
+}
+
+void
+test02()
+{
+  //  Test skipws correctness.
+  bool test [[gnu::unused]] = true;
+  std::stringstream ss;
+  ss << std::quoted("Hello Goodbye") << ' ' << 1 << ' ' << 2;
+  std::string song;
+  int thing1, thing2;
+  ss >> std::quoted(song) >> thing1 >> thing2;
+  VERIFY( song == "Hello Goodbye" );
+  VERIFY( thing1 == 1 );
+  VERIFY( thing2 == 2 );
+}
+
+void
+test03()
+{
+  //  Test read of unquoted string.
+  bool test [[gnu::unused]] = true;
+  std::stringstream ss;
+  ss << "Alpha Omega";
+  std::string testit;
+  ss >> std::quoted(testit);
+  VERIFY( testit == "Alpha" );
+}
+
+auto
+test04(const std::string& message)
+{
+  //  Test 'const basic_string&'
+  bool test [[gnu::unused]] = true;
+  std::stringstream ss;
+  ss << "**  Error: " << std::quoted(message) << "  **";
+  return ss.str();
+}
+
+int
+main()
+{
+  test01();
+  test02();
+  test03();
+  auto ss = test04("My biscuits are burnin'!");
+  VERIFY( ss == "**  Error: \"My biscuits are burnin'!\"  **" );
+
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/27_io/manipulators/standard/wchar_t/quoted.cc b/libstdc++-v3/testsuite/27_io/manipulators/standard/wchar_t/quoted.cc
new file mode 100644
index 0000000..ac4e0fb
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/manipulators/standard/wchar_t/quoted.cc
@@ -0,0 +1,88 @@
+// { dg-do run }
+// { dg-options "-std=gnu++1y" }
+
+// Copyright (C) 2013 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 27.7.6 - Quoted manipulators		[quoted.manip]
+
+#include <string>
+#include <sstream>
+#include <iomanip>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  //  Basic test from paper.
+  bool test [[gnu::unused]] = true;
+  std::wstringstream ss;
+  std::wstring original = L"foolish me";
+  std::wstring round_trip;
+  ss << std::quoted(original);
+  ss >> std::quoted(round_trip);
+  VERIFY( original == round_trip );
+}
+
+void
+test02()
+{
+  //  Test skipws correctness.
+  bool test [[gnu::unused]] = true;
+  std::wstringstream ss;
+  ss << std::quoted(L"Hello Goodbye") << L' ' << 1 << L' ' << 2;
+  std::wstring song;
+  int thing1, thing2;
+  ss >> std::quoted(song) >> thing1 >> thing2;
+  VERIFY( song == L"Hello Goodbye" );
+  VERIFY( thing1 == 1 );
+  VERIFY( thing2 == 2 );
+}
+
+void
+test03()
+{
+  //  Test read of unquoted string.
+  bool test [[gnu::unused]] = true;
+  std::wstringstream ss;
+  ss << L"Alpha Omega";
+  std::wstring testit;
+  ss >> std::quoted(testit);
+  VERIFY( testit == L"Alpha" );
+}
+
+auto
+test04(const std::wstring& message)
+{
+  //  Test 'const basic_string&'
+  bool test [[gnu::unused]] = true;
+  std::wstringstream ss;
+  ss << L"**  Error: " << std::quoted(message) << L"  **";
+  return ss.str();
+}
+
+int
+main()
+{
+  test01();
+  test02();
+  test03();
+  auto ss = test04(L"My biscuits are burnin'!");
+  VERIFY( ss == L"**  Error: \"My biscuits are burnin'!\"  **" );
+
+  return 0;
+}