Fix warnings reported by clang

[oweals/minetest.git] / src / nodemetadata.cpp

diff --git a/src/nodemetadata.cpp b/src/nodemetadata.cpp
index 141c779f14e176b40b8774c1e487c6abbdfde15c..4cdd61767df889cc39b6f82ca7291fb49226285d 100644 (file)
--- a/src/nodemetadata.cpp
+++ b/src/nodemetadata.cpp
@@ -1,6 +1,6 @@
 /*
-Minetest-c55
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
@@ -191,3 +191,34 @@ void NodeMetadataList::clear()
        }
        m_data.clear();
 }
+
+std::string NodeMetadata::getString(const std::string &name, unsigned short recursion) const
+{
+       std::map<std::string, std::string>::const_iterator it;
+       it = m_stringvars.find(name);
+       if (it == m_stringvars.end()) {
+               return "";
+       }
+       return resolveString(it->second, recursion);
+}
+
+void NodeMetadata::setString(const std::string &name, const std::string &var)
+{
+       if (var.empty()) {
+               m_stringvars.erase(name);
+       } else {
+               m_stringvars[name] = var;
+       }
+}
+
+std::string NodeMetadata::resolveString(const std::string &str, unsigned short recursion) const
+{
+       if (recursion > 1) {
+               return str;
+       }
+       if (str.substr(0, 2) == "${" && str[str.length() - 1] == '}') {
+               return getString(str.substr(2, str.length() - 3), recursion + 1);
+       }
+       return str;
+}
+