59 lines
2.0 KiB
C
59 lines
2.0 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_STATUS_STACK_H
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#define _SB_INTERNAL_STATUS_STACK_H
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#include <SBConfig.h>
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#include "SBBase.h"
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#define _SBStatusStackList_Length 16
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#define _SBStatusStackList_MaxIndex (_SBStatusStackList_Length - 1)
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typedef struct _SBStatusStackElement {
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SBBoolean isolateStatus;
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SBBidiType overrideStatus;
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SBLevel embeddingLevel;
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} _SBStatusStackElement, *_SBStatusStackElementRef;
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typedef struct _SBStatusStackList {
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_SBStatusStackElement elements[_SBStatusStackList_Length];
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struct _SBStatusStackList *previous;
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struct _SBStatusStackList *next;
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} _SBStatusStackList, *_SBStatusStackListRef;
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typedef struct _SBStatusStack {
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_SBStatusStackList _firstList;
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_SBStatusStackListRef _peekList;
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SBUInteger _peekTop;
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SBUInteger count;
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} StatusStack, *StatusStackRef;
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SB_INTERNAL void StatusStackInitialize(StatusStackRef stack);
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SB_INTERNAL void StatusStackFinalize(StatusStackRef stack);
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SB_INTERNAL void StatusStackPush(StatusStackRef stack,
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SBLevel embeddingLevel, SBBidiType overrideStatus, SBBoolean isolateStatus);
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SB_INTERNAL void StatusStackPop(StatusStackRef stack);
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SB_INTERNAL void StatusStackSetEmpty(StatusStackRef stack);
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SB_INTERNAL SBLevel StatusStackGetEmbeddingLevel(StatusStackRef stack);
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SB_INTERNAL SBBidiType StatusStackGetOverrideStatus(StatusStackRef stack);
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SB_INTERNAL SBBoolean StatusStackGetIsolateStatus(StatusStackRef stack);
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#endif
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