read XML file in c++ need urgent help

This is a discussion on read XML file in c++ need urgent help within the C++ Programming forums, part of the General Programming Boards category; Hi Code: I'm trying to read an XML file (below) using C++. Please help! <?xml version="1.0" encoding="utf-8" ?> <nodes> <node ...

  1. #1
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    Thumbs up read XML file in c++ need urgent help

    Hi
    Code:
    I'm trying to read an XML file (below) using C++. Please help!
    
    
    <?xml version="1.0" encoding="utf-8" ?> 
    <nodes>
    <node id="n1" x="25" y="25" connection="n2,n3" /> 
    <node id="n2" x="110" y="110" connection="n1,n3,n4" /> 
    <node id="n3" x="50" y="180" connection="n1,n2,n5,n6" /> 
    <node id="n4" x="225" y="90" connection="n2,n5,n6" /> 
    <node id="n5" x="190" y="160" connection="n3,n4" /> 
    <node id="n6" x="230" y="170" connection="n3,n4" /> 
    </nodes>

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    C++ Witch laserlight's Avatar
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    Search the Web for "C++ XML parser".
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

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    Quote Originally Posted by laserlight View Post
    Search the Web for "C++ XML parser".
    there are so many c++ xml parser available. but what is the logic to read data from xml file using c++ and display on the screen??

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    C++ Witch laserlight's Avatar
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    Quote Originally Posted by leo2008
    there are so many c++ xml parser available. but what is the logic to read data from xml file using c++ and display on the screen??
    Pick a few parsers, read their documentation, and use one that meets your needs.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way

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    Master Apprentice phantomotap's Avatar
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    but what is the logic to read data from xml file using c++ and display on the screen??
    Do you really want to know how parsers work? I ask because it can mean years of study to understand parser theory.

    Or do you just want to get the job of parsing done? I ask because using an existing library will be fairly easy. As laserlight says, just pick one; flip a coin if you must.

    Soma

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    tinyxml and tinyxpath will probably solve all your problems.

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    a_capitalist_story
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    tinyxml seems to be the most popular one, although I have also come across tinyxml++ but have not used it yet, or liquid xml c++ tool will happily do the job as well.

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    Quote Originally Posted by joethomas View Post
    tinyxml seems to be the most popular one, although I have also come across tinyxml++ but have not used it yet, or liquid xml c++ tool will happily do the job as well.
    Looks like the site has two versions now.
    TinyXML-2

    Tim S.
    "...a computer is a stupid machine with the ability to do incredibly smart things, while computer programmers are smart people with the ability to do incredibly stupid things. They are,in short, a perfect match.." Bill Bryson

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    If all you want to do is read XML, boost::property tree is the easiest way to go.

    It's dead simple, it's header only, so no compiling and linking libraries, and it has xpath-esque syntax for easy access to the XML data.
    How I need a drink, alcoholic in nature, after the heavy lectures involving quantum mechanics.

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