Simple libxml2 HTML parsing example, using Objective-c, Xcode, and HTMLparser.h

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心在旅途
心在旅途 2020-12-01 08:31

Please can somebody show me a simple example of parsing some HTML using libxml.

#import 

NSString *html = @\"
    \"
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  • 2020-12-01 09:05

    As Vladimir said, for the second point it's important to replace rawContents with Contents. rawContents will print the complete raw text node, i.e.:

    <span class='spantext'><b>Hello World 1</b></span>
    
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  • 2020-12-01 09:30

    I used Ben Reeves' HTML Parser to achieve what I wanted:

    NSError *error = nil;
    NSString *html = 
        @"<ul>"
            "<li><input type='image' name='input1' value='string1value' /></li>"
            "<li><input type='image' name='input2' value='string2value' /></li>"
        "</ul>"
        "<span class='spantext'><b>Hello World 1</b></span>"
        "<span class='spantext'><b>Hello World 2</b></span>";
    HTMLParser *parser = [[HTMLParser alloc] initWithString:html error:&error];
    
    if (error) {
        NSLog(@"Error: %@", error);
        return;
    }
    
    HTMLNode *bodyNode = [parser body];
    
    NSArray *inputNodes = [bodyNode findChildTags:@"input"];
    
    for (HTMLNode *inputNode in inputNodes) {
        if ([[inputNode getAttributeNamed:@"name"] isEqualToString:@"input2"]) {
            NSLog(@"%@", [inputNode getAttributeNamed:@"value"]); //Answer to first question
        }
    }
    
    NSArray *spanNodes = [bodyNode findChildTags:@"span"];
    
    for (HTMLNode *spanNode in spanNodes) {
        if ([[spanNode getAttributeNamed:@"class"] isEqualToString:@"spantext"]) {
            NSLog(@"%@", [spanNode allContents]); //Answer to second question
        }
    }
    
    [parser release];
    
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