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/*
* Copyright (C) 2013 The Android Open Source Project
*
* 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.
*/
#ifndef DIGRAPH_UTILS_H
#define DIGRAPH_UTILS_H
namespace latinime {
class DigraphUtils {
public:
typedef enum {
NOT_A_DIGRAPH_INDEX,
FIRST_DIGRAPH_CODEPOINT,
SECOND_DIGRAPH_CODEPOINT
} DigraphCodePointIndex;
typedef enum {
DIGRAPH_TYPE_NONE,
DIGRAPH_TYPE_GERMAN_UMLAUT,
DIGRAPH_TYPE_FRENCH_LIGATURES
} DigraphType;
typedef struct { int first; int second; int compositeGlyph; } digraph_t;
static bool hasDigraphForCodePoint(const int dictFlags, const int compositeGlyphCodePoint);
static int getAllDigraphsForDictionaryAndReturnSize(
const int dictFlags, const digraph_t **const digraphs);
static int getDigraphCodePointForIndex(const int dictFlags, const int compositeGlyphCodePoint,
const DigraphCodePointIndex digraphCodePointIndex);
static int getDigraphCodePointForIndex(const int compositeGlyphCodePoint,
const DigraphCodePointIndex digraphCodePointIndex);
private:
DISALLOW_IMPLICIT_CONSTRUCTORS(DigraphUtils);
static DigraphType getDigraphTypeForDictionary(const int dictFlags);
static int getAllDigraphsForDigraphTypeAndReturnSize(
const DigraphType digraphType, const digraph_t **const digraphs);
static const digraph_t *getDigraphForCodePoint(const int compositeGlyphCodePoint);
static const digraph_t *getDigraphForDigraphTypeAndCodePoint(
const DigraphType digraphType, const int compositeGlyphCodePoint);
static const digraph_t GERMAN_UMLAUT_DIGRAPHS[];
static const digraph_t FRENCH_LIGATURES_DIGRAPHS[];
static const DigraphType USED_DIGRAPH_TYPES[];
};
} // namespace latinime
#endif // DIGRAPH_UTILS_H
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