73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
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/*
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* Copyright (C) 2014-2019 Muhammad Tayyab Akram
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _SB_INTERNAL_BRACKET_QUEUE_H
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#define _SB_INTERNAL_BRACKET_QUEUE_H
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#include <SBConfig.h>
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#include "BidiChain.h"
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#include "SBBase.h"
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#define BracketQueueList_Length 8
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#define BracketQueueList_MaxIndex (BracketQueueList_Length - 1)
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typedef struct _BracketQueueList {
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SBCodepoint bracket[BracketQueueList_Length];
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BidiLink priorStrongLink[BracketQueueList_Length];
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BidiLink openingLink[BracketQueueList_Length];
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BidiLink closingLink[BracketQueueList_Length];
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SBBidiType strongType[BracketQueueList_Length];
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struct _BracketQueueList *previous;
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struct _BracketQueueList *next;
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} BracketQueueList, *BracketQueueListRef;
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typedef struct _BracketQueue {
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BracketQueueList _firstList;
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BracketQueueListRef _frontList;
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BracketQueueListRef _rearList;
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SBInteger _frontTop;
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SBInteger _rearTop;
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SBUInteger count;
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SBBoolean shouldDequeue;
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SBBidiType _direction;
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} BracketQueue, *BracketQueueRef;
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#define BracketQueueGetMaxCapacity() 63
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SB_INTERNAL void BracketQueueInitialize(BracketQueueRef queue);
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SB_INTERNAL void BracketQueueReset(BracketQueueRef queue, SBBidiType direction);
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SB_INTERNAL void BracketQueueEnqueue(BracketQueueRef queue,
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BidiLink priorStrongLink, BidiLink openingLink, SBCodepoint bracket);
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SB_INTERNAL void BracketQueueDequeue(BracketQueueRef queue);
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SB_INTERNAL void BracketQueueSetStrongType(BracketQueueRef queue, SBBidiType strongType);
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SB_INTERNAL void BracketQueueClosePair(BracketQueueRef queue,
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BidiLink closingLink, SBCodepoint bracket);
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SB_INTERNAL SBBoolean BracketQueueShouldDequeue(BracketQueueRef queue);
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SB_INTERNAL BidiLink BracketQueueGetPriorStrongLink(BracketQueueRef queue);
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SB_INTERNAL BidiLink BracketQueueGetOpeningLink(BracketQueueRef queue);
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SB_INTERNAL BidiLink BracketQueueGetClosingLink(BracketQueueRef queue);
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SB_INTERNAL SBBidiType BracketQueueGetStrongType(BracketQueueRef queue);
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SB_INTERNAL void BracketQueueFinalize(BracketQueueRef queue);
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#endif
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