iska
12276e91b3
The tree visitor walks the DOM in tree order and calls the provided node visitor upon entring and leaving a node.
45 lines
911 B
Objective-C
45 lines
911 B
Objective-C
//
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// HTMLTreeVisitor.h
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// HTMLKit
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//
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// Created by Iska on 30.07.19.
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// Copyright © 2019 BrainCookie. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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#import "HTMLNodeVisitor.h"
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NS_ASSUME_NONNULL_BEGIN
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@class HTMLNode;
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/**
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A HTML Tree Visitor that walks the DOM in tree order. Nodes are visited exacly once
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The provided node visitor is called for each node twice, once when entering the node,
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and once again when leaving the node.
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@see HTMLNodeVisitor
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*/
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@interface HTMLTreeVisitor : NSObject
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/**
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Initializes a new tree visitor with.
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@param node The root node.
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@return A new instance of a tree visitor.
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*/
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- (instancetype)initWithNode:(HTMLNode *)node;
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/**
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Walks the DOM tree rooted at the provided node with the given node visitor.
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@param visitor A HTMLNodeVisitor implementation.
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*/
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- (void)walkWithNodeVisitor:(id<HTMLNodeVisitor>)visitor;
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@end
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NS_ASSUME_NONNULL_END
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