example/testWriter.c

/**
 * section: xmlWriter
 * synopsis: use various APIs for the xmlWriter
 * purpose: tests a number of APIs for the xmlWriter, especially
 *          the various methods to write to a filename, to a memory
 *          buffer, to a new document, or to a subtree. It shows how to
 *          do encoding string conversions too. The resulting
 *          documents are then serialized.
 * usage: testWriter
 * test: testWriter && for i in 1 2 3 4 ; do diff $(srcdir)/writer.xml writer$$i.tmp || break ; done
 * author: Alfred Mickautsch
 * copy: see Copyright for the status of this software.
 */
#include <stdio.h>
#include <string.h>
#include <libxml/encoding.h>
#include <libxml/xmlwriter.h>
#include <libxml/parser.h>

#ifndef _WIN32
#include <unistd.h>
#endif

#if defined(LIBXML_WRITER_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)

#define MY_ENCODING "ISO-8859-1"

void testXmlwriterFilename(const char *uri);
void testXmlwriterMemory(void);
void testXmlwriterDoc(void);
void testXmlwriterTree(void);

int
main(void)
{
    /*
     * this initialize the library and check potential ABI mismatches
     * between the version it was compiled for and the actual shared
     * library used.
     */
    LIBXML_TEST_VERSION

    /* first, the file version */
    testXmlwriterFilename("writer1.tmp");
    unlink("writer1.tmp");

    /* next, the memory version */
    testXmlwriterMemory();

    /* next, the DOM version */
    testXmlwriterDoc();

    /* next, the tree version */
    testXmlwriterTree();

    return 0;
}

/**
 * testXmlwriterFilename:
 * @uri: the output URI
 *
 * test the xmlWriter interface when writing to a new file
 */
void
testXmlwriterFilename(const char *uri)
{
    int rc;
    xmlTextWriterPtr writer;

    /* Create a new XmlWriter for uri, with no compression. */
    writer = xmlNewTextWriterFilename(uri, 0);
    if (writer == NULL) {
        printf("testXmlwriterFilename: Error creating the xml writer\n");
        return;
    }

    /* Start the document with the xml default for the version,
     * encoding ISO 8859-1 and the default for the standalone
     * declaration. */
    rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterStartDocument\n");
        return;
    }

    /* Start an element named "EXAMPLE". Since this is the first
     * element, this will be the root element of the document. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "EXAMPLE");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
        return;
    }

    rc = xmlTextWriterWriteComment(writer, BAD_CAST "This is a comment");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteComment\n");
        return;
    }

    /* Start an element named "ORDER" as child of EXAMPLE. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ORDER");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Add an attribute with name "version" and value "1.0" to ORDER. */
    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "version",
                                     BAD_CAST "1.0");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute\n");
        return;
    }

    /* Add an attribute with name "xml:lang" and value "de" to ORDER. */
    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xml:lang",
                                     BAD_CAST "de");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteAttribute\n");
        return;
    }

    /* Write a comment as child of ORDER */
    rc = xmlTextWriterWriteComment(writer, BAD_CAST "This is another comment");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteFormatComment\n");
        return;
    }

    /* Start an element named "HEADER" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "HEADER");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "X_ORDER_ID" as child of HEADER. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "X_ORDER_ID",
                                         "%010d", 53535);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Write an element named "CUSTOMER_ID" as child of HEADER. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "CUSTOMER_ID",
                                         "%d", 1010);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Write an element named "NAME_1" as child of HEADER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_1",
                                   BAD_CAST "Mueller");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "NAME_2" as child of HEADER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_2",
                                   BAD_CAST "Joerg");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Close the element named HEADER. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "ENTRIES" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRIES");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Start an element named "ENTRY" as child of ENTRIES. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "ARTICLE" as child of ENTRY. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
                                   BAD_CAST "<Test>");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "ENTRY_NO" as child of ENTRY. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
                                         10);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Close the element named ENTRY. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "ENTRY" as child of ENTRIES. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "ARTICLE" as child of ENTRY. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
                                   BAD_CAST "<Test 2>");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "ENTRY_NO" as child of ENTRY. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
                                         20);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Close the element named ENTRY. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Close the element named ENTRIES. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "FOOTER" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "FOOTER");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "TEXT" as child of FOOTER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "TEXT",
                                   BAD_CAST "This is a text.");
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Close the element named FOOTER. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Here we could close the elements ORDER and EXAMPLE using the
     * function xmlTextWriterEndElement, but since we do not want to
     * write any other elements, we simply call xmlTextWriterEndDocument,
     * which will do all the work. */
    rc = xmlTextWriterEndDocument(writer);
    if (rc < 0) {
        printf
            ("testXmlwriterFilename: Error at xmlTextWriterEndDocument\n");
        return;
    }

    xmlFreeTextWriter(writer);
}

/**
 * testXmlwriterMemory:
 * @file: the output file
 *
 * test the xmlWriter interface when writing to memory
 */
void
testXmlwriterMemory(void)
{
    int rc;
    xmlTextWriterPtr writer;
    xmlBufferPtr buf;

    /* Create a new XML buffer, to which the XML document will be
     * written */
    buf = xmlBufferCreate();
    if (buf == NULL) {
        printf("testXmlwriterMemory: Error creating the xml buffer\n");
        return;
    }

    /* Create a new XmlWriter for memory, with no compression.
     * Remark: there is no compression for this kind of xmlTextWriter */
    writer = xmlNewTextWriterMemory(buf, 0);
    if (writer == NULL) {
        printf("testXmlwriterMemory: Error creating the xml writer\n");
        return;
    }

    /* Start the document with the xml default for the version,
     * encoding ISO 8859-1 and the default for the standalone
     * declaration. */
    rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterStartDocument\n");
        return;
    }

    /* Start an element named "EXAMPLE". Since this is the first
     * element, this will be the root element of the document. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "EXAMPLE");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write a comment as child of EXAMPLE. */
    rc = xmlTextWriterWriteComment(writer, BAD_CAST "This is a comment");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteComment\n");
        return;
    }

    /* Start an element named "ORDER" as child of EXAMPLE. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ORDER");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Add an attribute with name "version" and value "1.0" to ORDER. */
    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "version",
                                     BAD_CAST "1.0");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteAttribute\n");
        return;
    }

    /* Add an attribute with name "xml:lang" and value "de" to ORDER. */
    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xml:lang",
                                     BAD_CAST "de");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteAttribute\n");
        return;
    }

    /* Write a comment as child of ORDER */
    rc = xmlTextWriterWriteComment(writer, BAD_CAST "This is another comment");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteFormatComment\n");
        return;
    }

    /* Start an element named "HEADER" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "HEADER");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "X_ORDER_ID" as child of HEADER. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "X_ORDER_ID",
                                         "%010d", 53535);
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Write an element named "CUSTOMER_ID" as child of HEADER. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "CUSTOMER_ID",
                                         "%d", 1010);
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Write an element named "NAME_1" as child of HEADER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_1",
                                   BAD_CAST "Mueller");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "NAME_2" as child of HEADER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_2",
                                   BAD_CAST "Joerg");

    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Close the element named HEADER. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "ENTRIES" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRIES");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Start an element named "ENTRY" as child of ENTRIES. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "ARTICLE" as child of ENTRY. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
                                   BAD_CAST "<Test>");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "ENTRY_NO" as child of ENTRY. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
                                         10);
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Close the element named ENTRY. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "ENTRY" as child of ENTRIES. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "ARTICLE" as child of ENTRY. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
                                   BAD_CAST "<Test 2>");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "ENTRY_NO" as child of ENTRY. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
                                         20);
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Close the element named ENTRY. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Close the element named ENTRIES. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "FOOTER" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "FOOTER");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "TEXT" as child of FOOTER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "TEXT",
                                   BAD_CAST "This is a text.");
    if (rc < 0) {
        printf
            ("testXmlwriterMemory: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Close the element named FOOTER. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterMemory: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Here we could close the elements ORDER and EXAMPLE using the
     * function xmlTextWriterEndElement, but since we do not want to
     * write any other elements, we simply call xmlTextWriterEndDocument,
     * which will do all the work. */
    rc = xmlTextWriterEndDocument(writer);
    if (rc < 0) {
        printf("testXmlwriterMemory: Error at xmlTextWriterEndDocument\n");
        return;
    }

    xmlFreeTextWriter(writer);

    xmlBufferFree(buf);
}

/**
 * testXmlwriterDoc:
 * @file: the output file
 *
 * test the xmlWriter interface when creating a new document
 */
void
testXmlwriterDoc(void)
{
    int rc;
    xmlTextWriterPtr writer;
    xmlDocPtr doc;


    /* Create a new XmlWriter for DOM, with no compression. */
    writer = xmlNewTextWriterDoc(&doc, 0);
    if (writer == NULL) {
        printf("testXmlwriterDoc: Error creating the xml writer\n");
        return;
    }

    /* Start the document with the xml default for the version,
     * encoding ISO 8859-1 and the default for the standalone
     * declaration. */
    rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartDocument\n");
        return;
    }

    /* Start an element named "EXAMPLE". Since this is the first
     * element, this will be the root element of the document. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "EXAMPLE");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write a comment as child of EXAMPLE. */
    rc = xmlTextWriterWriteComment(writer, BAD_CAST "This is a comment");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterWriteComment\n");
        return;
    }

    /* Start an element named "ORDER" as child of EXAMPLE. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ORDER");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Add an attribute with name "version" and value "1.0" to ORDER. */
    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "version",
                                     BAD_CAST "1.0");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterWriteAttribute\n");
        return;
    }

    /* Add an attribute with name "xml:lang" and value "de" to ORDER. */
    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xml:lang",
                                     BAD_CAST "de");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterWriteAttribute\n");
        return;
    }

    /* Write a comment as child of ORDER */
    rc = xmlTextWriterWriteComment(writer, BAD_CAST "This is another comment");
    if (rc < 0) {
        printf
            ("testXmlwriterDoc: Error at xmlTextWriterWriteFormatComment\n");
        return;
    }

    /* Start an element named "HEADER" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "HEADER");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "X_ORDER_ID" as child of HEADER. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "X_ORDER_ID",
                                         "%010d", 53535);
    if (rc < 0) {
        printf
            ("testXmlwriterDoc: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Write an element named "CUSTOMER_ID" as child of HEADER. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "CUSTOMER_ID",
                                         "%d", 1010);
    if (rc < 0) {
        printf
            ("testXmlwriterDoc: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Write an element named "NAME_1" as child of HEADER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_1",
                                   BAD_CAST "Mueller");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "NAME_2" as child of HEADER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_2",
                                   BAD_CAST "Joerg");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Close the element named HEADER. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "ENTRIES" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRIES");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Start an element named "ENTRY" as child of ENTRIES. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "ARTICLE" as child of ENTRY. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
                                   BAD_CAST "<Test>");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "ENTRY_NO" as child of ENTRY. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
                                         10);
    if (rc < 0) {
        printf
            ("testXmlwriterDoc: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Close the element named ENTRY. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "ENTRY" as child of ENTRIES. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "ARTICLE" as child of ENTRY. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
                                   BAD_CAST "<Test 2>");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "ENTRY_NO" as child of ENTRY. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
                                         20);
    if (rc < 0) {
        printf
            ("testXmlwriterDoc: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Close the element named ENTRY. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Close the element named ENTRIES. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "FOOTER" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "FOOTER");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "TEXT" as child of FOOTER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "TEXT",
                                   BAD_CAST "This is a text.");
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Close the element named FOOTER. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Here we could close the elements ORDER and EXAMPLE using the
     * function xmlTextWriterEndElement, but since we do not want to
     * write any other elements, we simply call xmlTextWriterEndDocument,
     * which will do all the work. */
    rc = xmlTextWriterEndDocument(writer);
    if (rc < 0) {
        printf("testXmlwriterDoc: Error at xmlTextWriterEndDocument\n");
        return;
    }

    xmlFreeTextWriter(writer);

    xmlFreeDoc(doc);
}

/**
 * testXmlwriterTree:
 * @file: the output file
 *
 * test the xmlWriter interface when writing to a subtree
 */
void
testXmlwriterTree(void)
{
    int rc;
    xmlTextWriterPtr writer;
    xmlDocPtr doc;
    xmlNodePtr node;

    /* Create a new XML DOM tree, to which the XML document will be
     * written */
    doc = xmlNewDoc(BAD_CAST XML_DEFAULT_VERSION);
    if (doc == NULL) {
        printf
            ("testXmlwriterTree: Error creating the xml document tree\n");
        return;
    }

    /* Create a new XML node, to which the XML document will be
     * appended */
    node = xmlNewDocNode(doc, NULL, BAD_CAST "EXAMPLE", NULL);
    if (node == NULL) {
        printf("testXmlwriterTree: Error creating the xml node\n");
        return;
    }

    /* Make ELEMENT the root node of the tree */
    xmlDocSetRootElement(doc, node);

    /* Create a new XmlWriter for DOM tree, with no compression. */
    writer = xmlNewTextWriterTree(doc, node, 0);
    if (writer == NULL) {
        printf("testXmlwriterTree: Error creating the xml writer\n");
        return;
    }

    /* Start the document with the xml default for the version,
     * encoding ISO 8859-1 and the default for the standalone
     * declaration. */
    rc = xmlTextWriterStartDocument(writer, NULL, MY_ENCODING, NULL);
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterStartDocument\n");
        return;
    }

    /* Write a comment as child of EXAMPLE. */
    rc = xmlTextWriterWriteComment(writer, BAD_CAST "This is a comment");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterWriteComment\n");
        return;
    }

    /* Start an element named "ORDER" as child of EXAMPLE. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ORDER");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Add an attribute with name "version" and value "1.0" to ORDER. */
    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "version",
                                     BAD_CAST "1.0");
    if (rc < 0) {
        printf
            ("testXmlwriterTree: Error at xmlTextWriterWriteAttribute\n");
        return;
    }

    /* Add an attribute with name "xml:lang" and value "de" to ORDER. */
    rc = xmlTextWriterWriteAttribute(writer, BAD_CAST "xml:lang",
                                     BAD_CAST "de");
    if (rc < 0) {
        printf
            ("testXmlwriterTree: Error at xmlTextWriterWriteAttribute\n");
        return;
    }

    /* Write a comment as child of ORDER */
    rc = xmlTextWriterWriteComment(writer, BAD_CAST "This is another comment");
    if (rc < 0) {
        printf
            ("testXmlwriterTree: Error at xmlTextWriterWriteFormatComment\n");
        return;
    }

    /* Start an element named "HEADER" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "HEADER");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "X_ORDER_ID" as child of HEADER. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "X_ORDER_ID",
                                         "%010d", 53535);
    if (rc < 0) {
        printf
            ("testXmlwriterTree: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Write an element named "CUSTOMER_ID" as child of HEADER. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "CUSTOMER_ID",
                                         "%d", 1010);
    if (rc < 0) {
        printf
            ("testXmlwriterTree: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Write an element named "NAME_1" as child of HEADER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_1",
                                   BAD_CAST "Mueller");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "NAME_2" as child of HEADER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "NAME_2",
                                   BAD_CAST "Joerg");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Close the element named HEADER. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "ENTRIES" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRIES");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Start an element named "ENTRY" as child of ENTRIES. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "ARTICLE" as child of ENTRY. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
                                   BAD_CAST "<Test>");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "ENTRY_NO" as child of ENTRY. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
                                         10);
    if (rc < 0) {
        printf
            ("testXmlwriterTree: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Close the element named ENTRY. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "ENTRY" as child of ENTRIES. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "ENTRY");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "ARTICLE" as child of ENTRY. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "ARTICLE",
                                   BAD_CAST "<Test 2>");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Write an element named "ENTRY_NO" as child of ENTRY. */
    rc = xmlTextWriterWriteFormatElement(writer, BAD_CAST "ENTRY_NO", "%d",
                                         20);
    if (rc < 0) {
        printf
            ("testXmlwriterTree: Error at xmlTextWriterWriteFormatElement\n");
        return;
    }

    /* Close the element named ENTRY. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Close the element named ENTRIES. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Start an element named "FOOTER" as child of ORDER. */
    rc = xmlTextWriterStartElement(writer, BAD_CAST "FOOTER");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterStartElement\n");
        return;
    }

    /* Write an element named "TEXT" as child of FOOTER. */
    rc = xmlTextWriterWriteElement(writer, BAD_CAST "TEXT",
                                   BAD_CAST "This is a text.");
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterWriteElement\n");
        return;
    }

    /* Close the element named FOOTER. */
    rc = xmlTextWriterEndElement(writer);
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterEndElement\n");
        return;
    }

    /* Here we could close the elements ORDER and EXAMPLE using the
     * function xmlTextWriterEndElement, but since we do not want to
     * write any other elements, we simply call xmlTextWriterEndDocument,
     * which will do all the work. */
    rc = xmlTextWriterEndDocument(writer);
    if (rc < 0) {
        printf("testXmlwriterTree: Error at xmlTextWriterEndDocument\n");
        return;
    }

    xmlFreeTextWriter(writer);

    xmlFreeDoc(doc);
}

#else
int main(void) {
    fprintf(stderr, "Writer or output support not compiled in\n");
    return 0;
}
#endif