Ticket #713: SimplePropertyMap.d

/*******************************************************************************

        copyright:      Copyright (c) 2007 Steven Schveighoffer. All rights reserved

        license:        BSD style: $(LICENSE)

        version:        Initial release: Oct 2007

        author:         Steven Schveighoffer

*******************************************************************************/

module tango.text.SimplePropertyMap;

private import tango.text.Properties;

/*******************************************************************************

        This property map wraps a T[T[]] element which is used as a the
        property container.

*******************************************************************************/

class SimplePropertyMap(T) : PropertyMap!(T)
{
        private T[][T[]] map;
        void add(T[] name, T[] value)
        {
                map[name] = value;
        }

        void remove(T[] name)
        {
                map.remove(name);
        }

        T[] opIndex(T[] name)
        {
                T[] *value = name in map;
                if(value is null)
                        return null;
                return *value;
        }

        T[] opIndexAssign(T[] value, T[] name)
        {
                map[name] = value;
                return value;
        }

        int opApply(int delegate(ref T[] name, ref T[] value) dg)
        {
                int result = 0;
                foreach(k, v; map)
                {
                        if((result = dg(k, v)) != 0)
                                break;
                }
                return result;
        }

        void clear()
        {
                map = map.init;
        }

        bool contains(T[] name)
        {
                return (name in map) !is null;
        }
}