X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=src%2Fnodemetadata.cpp;h=4cdd61767df889cc39b6f82ca7291fb49226285d;hb=58e6d25e033c76dc91aaac18fdeda92ac23fe0e1;hp=56391a39cd2bc007780fd62d0231dcea0bd83e23;hpb=497ff1ecd64c8908f988e15ca879824f2781e3fd;p=oweals%2Fminetest.git

diff --git a/src/nodemetadata.cpp b/src/nodemetadata.cpp
index 56391a39c..4cdd61767 100644
--- a/src/nodemetadata.cpp
+++ b/src/nodemetadata.cpp
@@ -1,6 +1,6 @@
 /*
 Minetest
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+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;
+}
+