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  1. Processing XML in C typically involves using a dedicated XML parsing library to read, manipulate, and write XML documents. Two widely used modern approaches are libxml2 and cxml, each offering different strengths.

    Using libxml2

    libxml2 is a robust and widely adopted XML parser that supports DOM-style parsing, XPath queries, and validation.

    Steps:

    • Include the library headers:

    #include <libxml/parser.h>
    #include <libxml/tree.h>
    Cóipeáilte!
    • Create and populate an XML document:

    xmlDocPtr doc = xmlNewDoc(BAD_CAST "1.0");
    xmlNodePtr root = xmlNewNode(NULL, BAD_CAST "plant");
    xmlDocSetRootElement(doc, root);
    xmlNewChild(root, NULL, BAD_CAST "name", BAD_CAST "Coffee");
    Cóipeáilte!
    • Save or parse XML:

    xmlSaveFormatFileEnc("plant.xml", doc, "UTF-8", 1);
    xmlFreeDoc(doc);
    xmlCleanupParser();
    Cóipeáilte!
    • Compile:

    gcc main.c -o xmlprog `xml2-config --cflags --libs`
    Cóipeáilte!

    This method is ideal for complex XML handling with full feature support.

    Using cxml

    cxml is a lightweight C XML library focused on simplicity, with DOM, XPath 1.0 support, and a custom query language.

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    https://hatchjs.com/c-read-from-xml-file
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