Port to CMake, get rid of os_int.h.

[stg.git] / libs / srvconf / parsers / property.h

diff --git a/libs/srvconf/parsers/property.h b/libs/srvconf/parsers/property.h
new file mode 100644 (file)
index 0000000..7aa98ae
--- /dev/null
+++ b/libs/srvconf/parsers/property.h
@@ -0,0 +1,125 @@
+/*
+ *    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
+ */
+
+/*
+ *    Author : Maxim Mamontov <faust@stargazer.dp.ua>
+ */
+
+#ifndef __STG_STGLIBS_SRVCONF_PROPERTY_PARSERS_H__
+#define __STG_STGLIBS_SRVCONF_PROPERTY_PARSERS_H__
+
+#include "stg/common.h"
+
+#include <map>
+#include <string>
+
+namespace STG
+{
+
+class BASE_PROPERTY_PARSER
+{
+    public:
+        virtual ~BASE_PROPERTY_PARSER() {}
+        virtual bool Parse(const char ** attr, const std::string & attrName, const std::string & fromEncoding) = 0;
+};
+
+template <typename T>
+class PROPERTY_PARSER : public BASE_PROPERTY_PARSER
+{
+    public:
+        typedef bool (* FUNC)(const char **, T &, const std::string &);
+        PROPERTY_PARSER(T & v, FUNC f) : value(v), func(f) {}
+        PROPERTY_PARSER(T & v, FUNC f, const std::string & e) : value(v), func(f), encoding(e) {}
+        virtual bool Parse(const char ** attr, const std::string & attrName, const std::string & /*fromEncoding*/) { return func(attr, value, attrName); }
+    private:
+        T & value;
+        FUNC func;
+        std::string encoding;
+};
+
+template <>
+inline
+bool PROPERTY_PARSER<std::string>::Parse(const char ** attr, const std::string & attrName, const std::string & toEncoding)
+{
+if (!encoding.empty() && !toEncoding.empty())
+    {
+    std::string tmp;
+    if (!func(attr, tmp, attrName))
+        return false;
+    value = IconvString(tmp, encoding, toEncoding);
+    return true;
+    }
+else
+    return func(attr, value, attrName);
+}
+
+typedef std::map<std::string, BASE_PROPERTY_PARSER *> PROPERTY_PARSERS;
+
+bool CheckValue(const char ** attr, const std::string & attrName);
+
+template <typename T>
+inline
+bool GetValue(const char ** attr, T & value, const std::string & attrName)
+{
+if (CheckValue(attr, attrName))
+    if (str2x(attr[1], value) < 0)
+        return false;
+return true;
+}
+
+template <>
+inline
+bool GetValue<std::string>(const char ** attr, std::string & value, const std::string & attrName)
+{
+if (!CheckValue(attr, attrName))
+    return false;
+value = attr[1];
+return true;
+}
+
+template <>
+inline
+bool GetValue<double>(const char ** attr, double & value, const std::string & attrName)
+{
+if (CheckValue(attr, attrName))
+    if (strtodouble2(attr[1], value))
+        return false;
+return true;
+}
+
+bool GetEncodedValue(const char ** attr, std::string & value, const std::string & attrName);
+
+bool GetIPValue(const char ** attr, uint32_t& value, const std::string & attrName);
+
+template <typename T>
+inline
+void AddParser(PROPERTY_PARSERS & parsers, const std::string & name, T & value, const typename PROPERTY_PARSER<T>::FUNC & func = GetValue<T>)
+{
+    parsers.insert(std::make_pair(ToLower(name), new PROPERTY_PARSER<T>(value, func)));
+}
+
+template <typename T>
+inline
+void AddParser(PROPERTY_PARSERS & parsers, const std::string & name, T & value, const std::string & toEncoding, const typename PROPERTY_PARSER<T>::FUNC & func = GetValue<T>)
+{
+    parsers.insert(std::make_pair(ToLower(name), new PROPERTY_PARSER<T>(value, func, toEncoding)));
+}
+
+bool TryParse(PROPERTY_PARSERS & parsers, const std::string & name, const char ** attr, const std::string & fromEncoding, const std::string & attrName = "value");
+
+} // namespace STG
+
+#endif