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1 /************************************************************************************
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2
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3 PublicHeader: None
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4 Filename : OVR_StringHash.h
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5 Content : String hash table used when optional case-insensitive
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6 lookup is required.
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7 Created : September 19, 2012
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8 Notes :
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9
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10 Copyright : Copyright 2014 Oculus VR, LLC All Rights reserved.
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11
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12 Licensed under the Oculus VR Rift SDK License Version 3.2 (the "License");
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13 you may not use the Oculus VR Rift SDK except in compliance with the License,
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14 which is provided at the time of installation or download, or which
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15 otherwise accompanies this software in either electronic or hard copy form.
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16
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17 You may obtain a copy of the License at
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18
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19 http://www.oculusvr.com/licenses/LICENSE-3.2
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20
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21 Unless required by applicable law or agreed to in writing, the Oculus VR SDK
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22 distributed under the License is distributed on an "AS IS" BASIS,
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23 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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24 See the License for the specific language governing permissions and
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25 limitations under the License.
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26
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27 ************************************************************************************/
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28
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29 #ifndef OVR_StringHash_h
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30 #define OVR_StringHash_h
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31
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32 #include "OVR_String.h"
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33 #include "OVR_Hash.h"
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34
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35 namespace OVR {
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36
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37 //-----------------------------------------------------------------------------------
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38 // *** StringHash
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39
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40 // This is a custom string hash table that supports case-insensitive
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41 // searches through special functions such as GetCaseInsensitive, etc.
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42 // This class is used for Flash labels, exports and other case-insensitive tables.
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43
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44 template<class U, class Allocator = ContainerAllocator<U> >
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45 class StringHash : public Hash<String, U, String::NoCaseHashFunctor, Allocator>
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46 {
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47 public:
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48 typedef U ValueType;
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49 typedef StringHash<U, Allocator> SelfType;
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50 typedef Hash<String, U, String::NoCaseHashFunctor, Allocator> BaseType;
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51
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52 public:
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53
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54 void operator = (const SelfType& src) { BaseType::operator = (src); }
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55
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56 bool GetCaseInsensitive(const String& key, U* pvalue) const
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57 {
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58 String::NoCaseKey ikey(key);
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59 return BaseType::GetAlt(ikey, pvalue);
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60 }
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61 // Pointer-returning get variety.
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62 const U* GetCaseInsensitive(const String& key) const
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63 {
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64 String::NoCaseKey ikey(key);
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65 return BaseType::GetAlt(ikey);
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66 }
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67 U* GetCaseInsensitive(const String& key)
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68 {
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69 String::NoCaseKey ikey(key);
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70 return BaseType::GetAlt(ikey);
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71 }
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72
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73
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74 typedef typename BaseType::Iterator base_iterator;
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75
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76 base_iterator FindCaseInsensitive(const String& key)
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77 {
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78 String::NoCaseKey ikey(key);
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79 return BaseType::FindAlt(ikey);
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80 }
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81
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82 // Set just uses a find and assigns value if found. The key is not modified;
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83 // this behavior is identical to Flash string variable assignment.
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84 void SetCaseInsensitive(const String& key, const U& value)
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85 {
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86 base_iterator it = FindCaseInsensitive(key);
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87 if (it != BaseType::End())
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88 {
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89 it->Second = value;
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90 }
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91 else
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92 {
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93 BaseType::Add(key, value);
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94 }
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95 }
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96 };
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97
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98 } // OVR
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99
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100 #endif
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