opc_xml.c

Demonstrates basic non-MCE XML read access.

/*
    Dump an XML part using the non-MCE opcXmlReader.

    Ussage:
    opc_xml FILENAME PARTNAME

    Sample:
    opc_xml OOXMLI1.docx "word/document.xml"
*/

#include <opc/opc.h>
#include <stdio.h>
#include <time.h>
#ifdef WIN32
#include <crtdbg.h>
#endif

static void mce_def dumpElement(mceTextReader_t *reader) {
    xmlChar *ln=xmlTextReaderLocalName(reader->reader);
    printf("<%s>\n", ln);
    mce_start_attributes(reader) {
    } mce_end_attributes(reader);
    mce_start_children(reader) {
        mce_start_element(reader, NULL, NULL) {
            mce_ref(dumpElement(reader));
        } mce_end_element(reader);
        mce_start_text(reader) {
        } mce_end_text(reader);
    } mce_end_children(reader);
    printf("</%s>\n", ln);
    xmlFree(ln);
}

int main( int argc, const char* argv[] )
{
#ifdef WIN32
     _CrtSetDbgFlag (_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
#endif

    time_t start_time=time(NULL);
    if (OPC_ERROR_NONE==opcInitLibrary() && 3==argc) {
        opcContainer *c=NULL;
        if (NULL!=(c=opcContainerOpen(_X(argv[1]), OPC_OPEN_READ_ONLY, NULL, NULL))) {
            opcContainerDump(c, stdout);
            mceTextReader_t reader;
            if (OPC_ERROR_NONE==opcXmlReaderOpen(c, &reader,  _X(argv[2]), NULL, 0, 0)) {
                mce_start_document(&reader) {
                    mce_start_element(&reader, NULL, NULL) {
                        mce_ref(dumpElement(&reader));
                    } mce_end_element(&reader);
                } mce_end_document(&reader);
                mceTextReaderCleanup(&reader);
            } else {
                printf("ERROR: part \"%s\" could not be opened in \"%s\" for XML reading.\n", argv[2], argv[1]);
            }
            opcContainerClose(c, OPC_CLOSE_NOW);
        } else {
            printf("ERROR: file \"%s\" could not be opened.\n", argv[1]);
        }
        opcFreeLibrary();
    } else if (2==argc) {
        printf("ERROR: initialization of libopc failed.\n");    
    } else {
        printf("opc_extract FILENAME.\n\n");
        printf("Sample: opc_extract test.docx word/document.xml\n");
    }
    time_t end_time=time(NULL);
    fprintf(stderr, "time %.2lfsec\n", difftime(end_time, start_time));
#ifdef WIN32
    OPC_ASSERT(!_CrtDumpMemoryLeaks());
#endif
    return 0;
}