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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Current File : //usr/share/doc/libxml2-devel/examples/io2.c

/**
 * section: InputOutput
 * synopsis: Output to char buffer
 * purpose: Demonstrate the use of xmlDocDumpMemory
 *          to output document to a character buffer
 * usage: io2
 * test: io2 > io2.tmp && diff io2.tmp $(srcdir)/io2.res
 * author: John Fleck
 * copy: see Copyright for the status of this software.
 */

#include <libxml/parser.h>

#if defined(LIBXML_TREE_ENABLED) && defined(LIBXML_OUTPUT_ENABLED)
int
main(void)
{

    xmlNodePtr n;
    xmlDocPtr doc;
    xmlChar *xmlbuff;
    int buffersize;

    /*
     * Create the document.
     */
    doc = xmlNewDoc(BAD_CAST "1.0");
    n = xmlNewNode(NULL, BAD_CAST "root");
    xmlNodeSetContent(n, BAD_CAST "content");
    xmlDocSetRootElement(doc, n);

    /*
     * Dump the document to a buffer and print it
     * for demonstration purposes.
     */
    xmlDocDumpFormatMemory(doc, &xmlbuff, &buffersize, 1);
    printf("%s", (char *) xmlbuff);

    /*
     * Free associated memory.
     */
    xmlFree(xmlbuff);
    xmlFreeDoc(doc);

    return (0);

}
#else
#include <stdio.h>

int
main(void)
{
    fprintf(stderr,
            "library not configured with tree and output support\n");
    return (1);
}
#endif

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