(C) Iterate over Direct Child Nodes by Index

Demonstrates some ways to iterate over direct child nodes by index.

The input XML, available at http://www.chilkatsoft.com/data/get_child.xml, is this:

<root>
    <fruit color="red">apple</fruit>
    <fruit color="green">pear</fruit>
    <veg color="orange">carrot</veg>
    <meat animal="cow">beef</meat>
    <xyz>
        <fruit color="blue">blueberry</fruit>
        <veg color="green">broccoli</veg>
    </xyz>
    <fruit color="purple">grape</fruit>
    <cheese color="yellow">cheddar</cheese>
</root>

Downloads:

MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

FreeBSD C++ Libraries

HP-UX C++ Libraries

BlackBerry QNX C++ Libraries

#include <C_CkXml.h>

void ChilkatSample(void)
    {
    HCkXml xml;
    HCkXml child;
    BOOL success;
    long i;

    xml = CkXml_Create();

    //  The sample input XML is available at http://www.chilkatsoft.com/data/get_child.xml
    success = CkXml_LoadXmlFile(xml,"get_child.xml");
    if (success != TRUE) {
        printf("%s\n",CkXml_lastErrorText(xml));
        return;
    }

    //  The NumChildren property contains the number of direct
    //  child nodes.  Note: The child nodes under "xyz" are NOT
    //  direct children of "root".  Therefore, the "root" node has
    //  7 direct children
    printf("NumChildren = %d\n",CkXml_getNumChildren(xml));

    //  Iterate over the direct children by index. The first child
    //  is at index 0.

    for (i = 0; i <= CkXml_getNumChildren(xml) - 1; i++) {
        //   access the tag and content directly by index:
        printf("%d: %s : %s\n",i,CkXml_getChildTagByIndex(xml,i)
            ,CkXml_getChildContentByIndex(xml,i));

    }

    printf("-----\n");

    //  Do the same as the above loop, but get the child node
    //  and access the Tag and Content properties:
    for (i = 0; i <= CkXml_getNumChildren(xml) - 1; i++) {
        child = CkXml_GetChild(xml,i);
        printf("%d: %s : %s\n",i,CkXml_tag(child)
            ,CkXml_content(child));
        CkXml_Dispose(child);
    }

    printf("-----\n");

    //  Do the same as the above loop, but instead of creating
    //  a new object instance for each child, call GetChild2 to
    //  update the object's reference instead.
    for (i = 0; i <= CkXml_getNumChildren(xml) - 1; i++) {
        //  Navigate to the Nth child.
        CkXml_GetChild2(xml,i);
        printf("%d: %s : %s\n",i,CkXml_tag(xml)
            ,CkXml_content(xml));
        //  Navigate back up to the parent:
        CkXml_GetParent2(xml);
    }

    printf("-----\n");

    //  Notice that the Content of the "xyz" node is empty.  This is correct.
    //  The "xyz" node has no Content, but 2 direct children.


    CkXml_Dispose(xml);

    }