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NAME	SIZE	ACTIONS
📄 Makefile.am	4,093 B	[ EDIT ] \| [ DEL ]
📄 Makefile.in	33,309 B	[ EDIT ] \| [ DEL ]
📄 examples.xml	32,157 B	[ EDIT ] \| [ DEL ]
📄 examples.xsl	7,232 B	[ EDIT ] \| [ DEL ]
📄 index.html	32,920 B	[ EDIT ] \| [ DEL ]
📄 index.py	9,209 B	[ EDIT ] \| [ DEL ]
📄 io1.c	3,753 B	[ EDIT ] \| [ DEL ]
📄 io1.res	165 B	[ EDIT ] \| [ DEL ]
📄 io2.c	1,182 B	[ EDIT ] \| [ DEL ]
📄 io2.res	43 B	[ EDIT ] \| [ DEL ]
📄 parse1.c	1,300 B	[ EDIT ] \| [ DEL ]
📄 parse2.c	1,967 B	[ EDIT ] \| [ DEL ]
📄 parse3.c	1,506 B	[ EDIT ] \| [ DEL ]
📄 parse4.c	3,545 B	[ EDIT ] \| [ DEL ]
📄 reader1.c	2,530 B	[ EDIT ] \| [ DEL ]
📄 reader1.res	149 B	[ EDIT ] \| [ DEL ]
📄 reader2.c	3,133 B	[ EDIT ] \| [ DEL ]
📄 reader3.c	2,947 B	[ EDIT ] \| [ DEL ]
📄 reader3.res	360 B	[ EDIT ] \| [ DEL ]
📄 reader4.c	3,128 B	[ EDIT ] \| [ DEL ]
📄 reader4.res	72 B	[ EDIT ] \| [ DEL ]
📄 test1.xml	7 B	[ EDIT ] \| [ DEL ]
📄 test2.xml	227 B	[ EDIT ] \| [ DEL ]
📄 test3.xml	833 B	[ EDIT ] \| [ DEL ]
📄 testWriter.c	38,503 B	[ EDIT ] \| [ DEL ]
📄 tree1.c	2,245 B	[ EDIT ] \| [ DEL ]
📄 tree1.res	121 B	[ EDIT ] \| [ DEL ]
📄 tree2.c	3,415 B	[ EDIT ] \| [ DEL ]
📄 tree2.res	453 B	[ EDIT ] \| [ DEL ]
📄 tst.xml	91 B	[ EDIT ] \| [ DEL ]
📄 writer.xml	544 B	[ EDIT ] \| [ DEL ]
📄 xpath1.c	6,624 B	[ EDIT ] \| [ DEL ]
📄 xpath1.res	114 B	[ EDIT ] \| [ DEL ]
📄 xpath2.c	5,330 B	[ EDIT ] \| [ DEL ]
📄 xpath2.res	757 B	[ EDIT ] \| [ DEL ]

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EDIT: reader3.c

/**
 * section: xmlReader
 * synopsis: Show how to extract subdocuments with xmlReader
 * purpose: Demonstrate the use of xmlTextReaderPreservePattern() 
 *          to parse an XML file with the xmlReader while collecting
 *          only some subparts of the document.
 *          (Note that the XMLReader functions require libxml2 version later
 *          than 2.6.)
 * usage: reader3
 * test: reader3 > reader3.tmp && diff reader3.tmp $(srcdir)/reader3.res
 * author: Daniel Veillard
 * copy: see Copyright for the status of this software.
 */

#include <stdio.h>
#include <libxml/xmlreader.h>

#if defined(LIBXML_READER_ENABLED) && defined(LIBXML_PATTERN_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)

/**
 * streamFile:
 * @filename: the file name to parse
 *
 * Parse and print information about an XML file.
 *
 * Returns the resulting doc with just the elements preserved.
 */
static xmlDocPtr
extractFile(const char *filename, const xmlChar *pattern) {
    xmlDocPtr doc;
    xmlTextReaderPtr reader;
    int ret;

/*
     * build an xmlReader for that file
     */
    reader = xmlReaderForFile(filename, NULL, 0);
    if (reader != NULL) {
        /*
	 * add the pattern to preserve
	 */
        if (xmlTextReaderPreservePattern(reader, pattern, NULL) < 0) {
            fprintf(stderr, "%s : failed add preserve pattern %s\n",
	            filename, (const char *) pattern);
	}
	/*
	 * Parse and traverse the tree, collecting the nodes in the process
	 */
        ret = xmlTextReaderRead(reader);
        while (ret == 1) {
            ret = xmlTextReaderRead(reader);
        }
        if (ret != 0) {
            fprintf(stderr, "%s : failed to parse\n", filename);
	    xmlFreeTextReader(reader);
	    return(NULL);
        }
	/*
	 * get the resulting nodes
	 */
	doc = xmlTextReaderCurrentDoc(reader);
	/*
	 * Free up the reader
	 */
        xmlFreeTextReader(reader);
    } else {
        fprintf(stderr, "Unable to open %s\n", filename);
	return(NULL);
    }
    return(doc);
}

int main(int argc, char **argv) {
    const char *filename = "test3.xml";
    const char *pattern = "preserved";
    xmlDocPtr doc;

if (argc == 3) {
        filename = argv[1];
	pattern = argv[2];
    }

/*
     * 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

doc = extractFile(filename, (const xmlChar *) pattern);
    if (doc != NULL) {
        /*
	 * ouptut the result.
	 */
        xmlDocDump(stdout, doc);
	/*
	 * don't forget to free up the doc
	 */
	xmlFreeDoc(doc);
    }

/*
     * Cleanup function for the XML library.
     */
    xmlCleanupParser();
    /*
     * this is to debug memory for regression tests
     */
    xmlMemoryDump();
    return(0);
}

#else
int main(void) {
    fprintf(stderr, "Reader, Pattern or output support not compiled in\n");
    exit(1);
}
#endif