61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*
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* Copyright (C) 2008 Patrick Ohly
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*/
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#ifndef INCL_EVOLUTION_SAFE_CONFIG_NODE
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# define INCL_EVOLUTION_SAFE_CONFIG_NODE
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#include <ConfigNode.h>
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#include <boost/shared_ptr.hpp>
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#include <map>
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#include <utility>
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#include <vector>
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#include <string>
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using namespace std;
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/**
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* This class acts as filter between a real config node and its user:
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* key/value strings which normally wouldn't be valid are escaped
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* before passing them into the underlying node. When reading, they
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* are unescaped again.
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*
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* Unsafe characters are replaced by ! followed by two characters
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* giving the character value in hex notation.
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*/
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class SafeConfigNode : public ConfigNode {
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public:
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/** read-write access to underlying node */
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SafeConfigNode(const boost::shared_ptr<ConfigNode> &node);
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/** read-only access to underlying node */
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SafeConfigNode(const boost::shared_ptr<const ConfigNode> &node);
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virtual string getName() const { return m_readOnlyNode->getName(); }
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/* ConfigNode API */
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virtual void flush();
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virtual string readProperty(const string &property) const;
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virtual void setProperty(const string &property,
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const string &value,
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const string &comment = "",
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const string *defValue = NULL);
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virtual void readProperties(map<string, string> &props) const;
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virtual void removeProperty(const string &property);
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virtual bool exists() const { return m_readOnlyNode->exists(); }
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private:
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boost::shared_ptr<ConfigNode> m_node;
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boost::shared_ptr<const ConfigNode> m_readOnlyNode;
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/**
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* turn str into something which can be used as key or value in ConfigNode
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*/
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static string escape(const string &str);
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/** inverse operation for escape() */
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static string unescape(const string &str);
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};
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#endif
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