cld2tablesummary.h

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// Copyright 2013 Google Inc. All Rights Reserved.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

//

// Author: dsites@google.com (Dick Sites)

//

#ifndef I18N_ENCODINGS_CLD2_INTERNAL_CLD2TABLESUMMARY_H_

#define I18N_ENCODINGS_CLD2_INTERNAL_CLD2TABLESUMMARY_H_

#include "integral_types.h"

namespace CLD2 {

// Hash bucket for four-way associative lookup, indirect probabilities

// 16 bytes per bucket, 4-byte entries

typedef struct {

  uint32 keyvalue[4];   // Upper part of word is hash, lower is indirect prob

} IndirectProbBucket4;

// Expanded version December 2012.

// Moves cutoff for 6-language vs. 3-language indirects

// Has list of recognized lang-script combinations

typedef struct {

  const IndirectProbBucket4* kCLDTable;

                                      // Each bucket has four entries, part

                                      //  key and part indirect subscript

  const uint32* kCLDTableInd;         // Each entry is three packed lang/prob

  uint32 kCLDTableSizeOne;            // Indirect subscripts >= this: 2 entries

  uint32 kCLDTableSize;               // Bucket count

  uint32 kCLDTableKeyMask;            // Mask hash key

  uint32 kCLDTableBuildDate;          // yyyymmdd

  const char* kRecognizedLangScripts; // Character string of lang-Scripts

                                      //  recognized: "en-Latn az-Arab ..."

                                      //  Single space delimiter, Random order

} CLD2TableSummary;

}       // End namespace CLD2

#endif  // I18N_ENCODINGS_CLD2_INTERNAL_CLD2TABLESUMMARY_H_