1 files changed, 278 insertions, 0 deletions
diff --git a/Source/kwsys/FStream.hxx.in b/Source/kwsys/FStream.hxx.in
new file mode 100644
index 0000000..d79bbdf
--- /dev/null
+++ b/Source/kwsys/FStream.hxx.in
@@ -0,0 +1,278 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing#kwsys for details.  */
+#ifndef @KWSYS_NAMESPACE@_FStream_hxx
+#define @KWSYS_NAMESPACE@_FStream_hxx
+
+#include <@KWSYS_NAMESPACE@/Configure.hxx>
+
+#include <@KWSYS_NAMESPACE@/Encoding.hxx>
+
+#include <fstream>
+#if defined(_WIN32)
+#  if !defined(_MSC_VER) && @KWSYS_NAMESPACE@_CXX_HAS_EXT_STDIO_FILEBUF_H
+#    include <ext/stdio_filebuf.h>
+#  endif
+#endif
+
+namespace @KWSYS_NAMESPACE@ {
+#if defined(_WIN32) &&                                                        \
+  (defined(_MSC_VER) || @KWSYS_NAMESPACE@_CXX_HAS_EXT_STDIO_FILEBUF_H)
+#  if defined(_NOEXCEPT)
+#    define @KWSYS_NAMESPACE@_FStream_NOEXCEPT _NOEXCEPT
+#  else
+#    define @KWSYS_NAMESPACE@_FStream_NOEXCEPT
+#  endif
+
+#  if defined(_MSC_VER)
+
+template <typename CharType, typename Traits>
+class basic_filebuf : public std::basic_filebuf<CharType, Traits>
+{
+#    if _MSC_VER >= 1400
+public:
+  typedef std::basic_filebuf<CharType, Traits> my_base_type;
+  basic_filebuf* open(char const* s, std::ios_base::openmode mode)
+  {
+    const std::wstring wstr = Encoding::ToWindowsExtendedPath(s);
+    return static_cast<basic_filebuf*>(my_base_type::open(wstr.c_str(), mode));
+  }
+#    endif
+};
+
+#  else
+
+inline std::wstring getcmode(const std::ios_base::openmode mode)
+{
+  std::wstring cmode;
+  bool plus = false;
+  if (mode & std::ios_base::app) {
+    cmode += L"a";
+    plus = mode & std::ios_base::in ? true : false;
+  } else if (mode & std::ios_base::trunc ||
+             (mode & std::ios_base::out && (mode & std::ios_base::in) == 0)) {
+    cmode += L"w";
+    plus = mode & std::ios_base::in ? true : false;
+  } else {
+    cmode += L"r";
+    plus = mode & std::ios_base::out ? true : false;
+  }
+  if (plus) {
+    cmode += L"+";
+  }
+  if (mode & std::ios_base::binary) {
+    cmode += L"b";
+  } else {
+    cmode += L"t";
+  }
+  return cmode;
+};
+
+#  endif
+
+template <typename CharType, typename Traits = std::char_traits<CharType> >
+class basic_efilebuf
+{
+public:
+#  if defined(_MSC_VER)
+  typedef basic_filebuf<CharType, Traits> internal_buffer_type;
+#  else
+  typedef __gnu_cxx::stdio_filebuf<CharType, Traits> internal_buffer_type;
+#  endif
+
+  basic_efilebuf()
+    : file_(0)
+  {
+    buf_ = 0;
+  }
+
+  bool _open(char const* file_name, std::ios_base::openmode mode)
+  {
+    if (is_open() || file_) {
+      return false;
+    }
+#  if defined(_MSC_VER)
+    const bool success = buf_->open(file_name, mode) != 0;
+#  else
+    const std::wstring wstr = Encoding::ToWindowsExtendedPath(file_name);
+    bool success = false;
+    std::wstring cmode = getcmode(mode);
+    file_ = _wfopen(wstr.c_str(), cmode.c_str());
+    if (file_) {
+      if (buf_) {
+        delete buf_;
+      }
+      buf_ = new internal_buffer_type(file_, mode);
+      success = true;
+    }
+#  endif
+    return success;
+  }
+
+  bool is_open()
+  {
+    if (!buf_) {
+      return false;
+    }
+    return buf_->is_open();
+  }
+
+  bool is_open() const
+  {
+    if (!buf_) {
+      return false;
+    }
+    return buf_->is_open();
+  }
+
+  bool _close()
+  {
+    bool success = false;
+    if (buf_) {
+      success = buf_->close() != 0;
+#  if !defined(_MSC_VER)
+      if (file_) {
+        success = fclose(file_) == 0 ? success : false;
+        file_ = 0;
+      }
+#  endif
+    }
+    return success;
+  }
+
+  static void _set_state(bool success, std::basic_ios<CharType, Traits>* ios,
+                         basic_efilebuf* efilebuf)
+  {
+#  if !defined(_MSC_VER)
+    ios->rdbuf(efilebuf->buf_);
+#  else
+    static_cast<void>(efilebuf);
+#  endif
+    if (!success) {
+      ios->setstate(std::ios_base::failbit);
+    } else {
+      ios->clear();
+    }
+  }
+
+  ~basic_efilebuf()
+  {
+    if (buf_) {
+      delete buf_;
+    }
+  }
+
+protected:
+  internal_buffer_type* buf_;
+  FILE* file_;
+};
+
+template <typename CharType, typename Traits = std::char_traits<CharType> >
+class basic_ifstream
+  : public std::basic_istream<CharType, Traits>
+  , public basic_efilebuf<CharType, Traits>
+{
+public:
+  typedef typename basic_efilebuf<CharType, Traits>::internal_buffer_type
+    internal_buffer_type;
+  typedef std::basic_istream<CharType, Traits> internal_stream_type;
+
+  basic_ifstream()
+    : internal_stream_type(new internal_buffer_type())
+  {
+    this->buf_ =
+      static_cast<internal_buffer_type*>(internal_stream_type::rdbuf());
+  }
+  explicit basic_ifstream(char const* file_name,
+                          std::ios_base::openmode mode = std::ios_base::in)
+    : internal_stream_type(new internal_buffer_type())
+  {
+    this->buf_ =
+      static_cast<internal_buffer_type*>(internal_stream_type::rdbuf());
+    open(file_name, mode);
+  }
+
+  void open(char const* file_name,
+            std::ios_base::openmode mode = std::ios_base::in)
+  {
+    mode = mode | std::ios_base::in;
+    this->_set_state(this->_open(file_name, mode), this, this);
+  }
+
+  void close() { this->_set_state(this->_close(), this, this); }
+
+  using basic_efilebuf<CharType, Traits>::is_open;
+
+  internal_buffer_type* rdbuf() const { return this->buf_; }
+
+  ~basic_ifstream() @KWSYS_NAMESPACE@_FStream_NOEXCEPT { close(); }
+};
+
+template <typename CharType, typename Traits = std::char_traits<CharType> >
+class basic_ofstream
+  : public std::basic_ostream<CharType, Traits>
+  , public basic_efilebuf<CharType, Traits>
+{
+  using basic_efilebuf<CharType, Traits>::is_open;
+
+public:
+  typedef typename basic_efilebuf<CharType, Traits>::internal_buffer_type
+    internal_buffer_type;
+  typedef std::basic_ostream<CharType, Traits> internal_stream_type;
+
+  basic_ofstream()
+    : internal_stream_type(new internal_buffer_type())
+  {
+    this->buf_ =
+      static_cast<internal_buffer_type*>(internal_stream_type::rdbuf());
+  }
+  explicit basic_ofstream(char const* file_name,
+                          std::ios_base::openmode mode = std::ios_base::out)
+    : internal_stream_type(new internal_buffer_type())
+  {
+    this->buf_ =
+      static_cast<internal_buffer_type*>(internal_stream_type::rdbuf());
+    open(file_name, mode);
+  }
+  void open(char const* file_name,
+            std::ios_base::openmode mode = std::ios_base::out)
+  {
+    mode = mode | std::ios_base::out;
+    this->_set_state(this->_open(file_name, mode), this, this);
+  }
+
+  void close() { this->_set_state(this->_close(), this, this); }
+
+  internal_buffer_type* rdbuf() const { return this->buf_; }
+
+  ~basic_ofstream() @KWSYS_NAMESPACE@_FStream_NOEXCEPT { close(); }
+};
+
+typedef basic_ifstream<char> ifstream;
+typedef basic_ofstream<char> ofstream;
+
+#  undef @KWSYS_NAMESPACE@_FStream_NOEXCEPT
+#else
+using std::ofstream;
+using std::ifstream;
+#endif
+
+namespace FStream {
+enum BOM
+{
+  BOM_None,
+  BOM_UTF8,
+  BOM_UTF16BE,
+  BOM_UTF16LE,
+  BOM_UTF32BE,
+  BOM_UTF32LE
+};
+
+// Read a BOM, if one exists.
+// If a BOM exists, the stream is advanced to after the BOM.
+// This function requires a seekable stream (but not a relative
+// seekable stream).
+@KWSYS_NAMESPACE@_EXPORT BOM ReadBOM(std::istream& in);
+}
+}
+
+#endif