Move the netradiant and fteqcc sources

[voretournament/voretournament.git] / misc / mediasource / netradiant-src / libs / versionlib.h

diff --git a/misc/mediasource/netradiant-src/libs/versionlib.h b/misc/mediasource/netradiant-src/libs/versionlib.h
new file mode 100644 (file)
index 0000000..368e5de
--- /dev/null
+++ b/misc/mediasource/netradiant-src/libs/versionlib.h
@@ -0,0 +1,91 @@
+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant 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.
+
+GtkRadiant 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 GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#if !defined(INCLUDED_VERSIONLIB_H)
+#define INCLUDED_VERSIONLIB_H
+
+#include <cstddef>
+#include <string.h>
+#include <algorithm>
+
+class Version
+{
+public:
+  int major;
+  int minor;
+};
+
+inline bool operator<(const Version& version, const Version& other)
+{
+  return version.major < other.major || (!(other.major < version.major) && version.minor < other.minor);
+}
+
+template<typename TextOutputStreamType>
+TextOutputStreamType& ostream_write(TextOutputStreamType& outputStream, const Version& version)
+{
+  return outputStream << version.major << '.' << version.minor;
+}
+
+/// \brief Returns true if \p version (code) is compatible with \p other (data).
+inline bool version_compatible(const Version& version, const Version& other)
+{
+  return version.major == other.major  // different major-versions are always incompatible
+    && !(version.minor < other.minor); // data minor-version is incompatible if greater than code minor-version
+}
+
+inline int string_range_parse_unsigned_decimal_integer(const char* first, const char* last)
+{
+  int result = 0;
+  for(; first != last; ++first)
+  {
+    result *= 10;
+    result += *first - '0';
+  }
+  return result;
+}
+
+inline Version version_parse(const char* versionString)
+{
+  Version version;
+  const char* endVersion = versionString + strlen(versionString);
+
+  const char* endMajor = strchr(versionString, '.');
+  if(endMajor == 0)
+  {
+    endMajor = endVersion;
+
+    version.minor = 0;
+  }
+  else
+  {
+    const char* endMinor = strchr(endMajor + 1, '.');
+    if(endMinor == 0)
+    {
+      endMinor = endVersion;
+    }
+    version.minor = string_range_parse_unsigned_decimal_integer(endMajor + 1, endMinor);
+  }
+  version.major = string_range_parse_unsigned_decimal_integer(versionString, endMajor);
+
+  return version;
+}
+
+#endif