nuclear@3: /************************************************************************************
nuclear@3: 
nuclear@3: PublicHeader:   None
nuclear@3: Filename    :   OVR_StringHash.h
nuclear@3: Content     :   String hash table used when optional case-insensitive
nuclear@3:                 lookup is required.
nuclear@3: Created     :   September 19, 2012
nuclear@3: Notes       : 
nuclear@3: 
nuclear@3: Copyright   :   Copyright 2012 Oculus VR, Inc. All Rights reserved.
nuclear@3: 
nuclear@3: Use of this software is subject to the terms of the Oculus license
nuclear@3: agreement provided at the time of installation or download, or which
nuclear@3: otherwise accompanies this software in either electronic or hard copy form.
nuclear@3: 
nuclear@3: ************************************************************************************/
nuclear@3: 
nuclear@3: #ifndef OVR_StringHash_h
nuclear@3: #define OVR_StringHash_h
nuclear@3: 
nuclear@3: #include "OVR_String.h"
nuclear@3: #include "OVR_Hash.h"
nuclear@3: 
nuclear@3: namespace OVR {
nuclear@3: 
nuclear@3: //-----------------------------------------------------------------------------------
nuclear@3: // *** StringHash
nuclear@3: 
nuclear@3: // This is a custom string hash table that supports case-insensitive
nuclear@3: // searches through special functions such as GetCaseInsensitive, etc.
nuclear@3: // This class is used for Flash labels, exports and other case-insensitive tables.
nuclear@3: 
nuclear@3: template<class U, class Allocator = ContainerAllocator<U> >
nuclear@3: class StringHash : public Hash<String, U, String::NoCaseHashFunctor, Allocator>
nuclear@3: {
nuclear@3: public:
nuclear@3:     typedef U                                                        ValueType;
nuclear@3:     typedef StringHash<U, Allocator>                                 SelfType;
nuclear@3:     typedef Hash<String, U, String::NoCaseHashFunctor, Allocator>    BaseType;
nuclear@3: 
nuclear@3: public:    
nuclear@3: 
nuclear@3:     void    operator = (const SelfType& src) { BaseType::operator = (src); }
nuclear@3: 
nuclear@3:     bool    GetCaseInsensitive(const String& key, U* pvalue) const
nuclear@3:     {
nuclear@3:         String::NoCaseKey ikey(key);
nuclear@3:         return BaseType::GetAlt(ikey, pvalue);
nuclear@3:     }
nuclear@3:     // Pointer-returning get variety.
nuclear@3:     const U* GetCaseInsensitive(const String& key) const   
nuclear@3:     {
nuclear@3:         String::NoCaseKey ikey(key);
nuclear@3:         return BaseType::GetAlt(ikey);
nuclear@3:     }
nuclear@3:     U*  GetCaseInsensitive(const String& key)
nuclear@3:     {
nuclear@3:         String::NoCaseKey ikey(key);
nuclear@3:         return BaseType::GetAlt(ikey);
nuclear@3:     }
nuclear@3: 
nuclear@3:     
nuclear@3:     typedef typename BaseType::Iterator base_iterator;
nuclear@3: 
nuclear@3:     base_iterator    FindCaseInsensitive(const String& key)
nuclear@3:     {
nuclear@3:         String::NoCaseKey ikey(key);
nuclear@3:         return BaseType::FindAlt(ikey);
nuclear@3:     }
nuclear@3: 
nuclear@3:     // Set just uses a find and assigns value if found. The key is not modified;
nuclear@3:     // this behavior is identical to Flash string variable assignment.    
nuclear@3:     void    SetCaseInsensitive(const String& key, const U& value)
nuclear@3:     {
nuclear@3:         base_iterator it = FindCaseInsensitive(key);
nuclear@3:         if (it != BaseType::End())
nuclear@3:         {
nuclear@3:             it->Second = value;
nuclear@3:         }
nuclear@3:         else
nuclear@3:         {
nuclear@3:             BaseType::Add(key, value);
nuclear@3:         }
nuclear@3:     } 
nuclear@3: };
nuclear@3: 
nuclear@3: } // OVR 
nuclear@3: 
nuclear@3: #endif