Working option file, doesn't yet load from a sane place.

git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@449 e378c898-3ddf-0310-93e7-cc216c733640

src/option_file.cc

@@ -0,0 +1,62 @@
+// rTorrent - BitTorrent client
+// Copyright (C) 2005, Jari Sundell
+//
+// This program 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 2 of the License, or
+// (at your option) any later version.
+// 
+// This program 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 program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+// Contact:  Jari Sundell <jaris@ifi.uio.no>
+//
+//           Skomakerveien 33
+//           3185 Skoppum, NORWAY
+
+#include "config.h"
+
+#include <algorithm>
+#include <functional>
+#include <fstream>
+#include <stdexcept>
+
+#include "option_file.h"
+
+void
+OptionFile::process(std::istream* stream) {
+  char buf[max_size_line];
+
+  while (stream->good()) {
+    stream->getline(buf, max_size_line);
+
+    parse_line(buf);
+  }
+}
+
+void
+OptionFile::parse_line(const char* line) {
+  //const char* last = std::find(line, line + max_size_line, '\0');
+
+  if (line[0] == '#')
+    return;
+
+  char key[64];
+  char opt[512];
+
+  int result;
+
+  // Check for empty lines, and options within "abc".
+  if ((result = std::sscanf(line, "%64s = %512s", key, opt)) == 2)
+    m_slotOption(key, opt);
+
+  // Don't throw on empty lines or lines with key and opt.
+  if (result == 1)
+    throw std::runtime_error("Error parseing option file.");
+}