test.cpp

调用apr库中的xml接口

// test.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
//#include <hash_set>
#include <map>
#include <algorithm>
#include <functional>
#include <vector>

//#include "config.h"
#include "gd.h"
#include "gdfontt.h"
#include "gdfonts.h"
#include "gdfontmb.h"
#include "gdfontl.h"
#include "gdfontg.h"


//---------------------------------------------------------------------------

#pragma hdrstop

//---------------------------------------------------------------------------
//////////////////////////////////////////////////////////////////////////
#define CORE_PRIVATE
#include "apr_strings.h"
#include "apr_pools.h"
#include "C:\\Program Files\\Apache Software Foundation\\Apache2.2\\include\\apr_pools.h"
#include "apr_general.h"
#include "apr_hash.h"
#include "apr_lib.h"
#include "apr_time.h"
#include "apr_xml.h"
#include "apr_network_io.h"

//#include <regex.h>
using namespace std;

static const char *progname;
static const char *usage = "%s [xmlfile]\nIt will create "
                           "a dummy XML file if none is supplied";
/*
 * If our platform knows about the tmpnam() external buffer size, create
 * a buffer to pass in.  This is needed in a threaded environment, or
 * one that thinks it is (like HP-UX).
 */

#ifdef L_tmpnam
static char tname_buf[L_tmpnam];
#else
static char *tname_buf = NULL;
#endif

static apr_status_t create_dummy_file_error(apr_pool_t *p, apr_file_t **fd)
{
    apr_status_t rv;
    char *tmpfile;
    int i;
    apr_off_t off = 0L;
    tmpfile = tmpnam(tname_buf);

    if ((tmpfile == NULL) || (*tmpfile == '\0')) {
        fprintf(stderr, "unable to generate temporary filename\n");
        if (errno == 0) {
            errno = ENOENT;
        }
        perror("tmpnam");
        return APR_ENOENT;
    }
    rv = apr_file_open(fd, tmpfile, APR_CREATE|APR_TRUNCATE|APR_DELONCLOSE|
                       APR_READ|APR_WRITE|APR_EXCL, APR_OS_DEFAULT, p);

    if (rv != APR_SUCCESS)
        return rv;
    rv = apr_file_puts("<?xml version=\"1.0\" ?>\n<maryx>"
                       "<had a=\"little\"/><lamb its='fleece "
                       "was white as snow' />\n", *fd);
    if (rv != APR_SUCCESS)
        return rv;

    for (i = 0; i < 5000; i++) {
        rv = apr_file_puts("<hmm roast=\"lamb\" "
                           "for=\"dinner\">yummy</hmm>\n", *fd);
        if (rv != APR_SUCCESS)
            return rv;
    }
    rv = apr_file_puts("</mary>\n", *fd);
    if (rv != APR_SUCCESS)
        return rv;

    return apr_file_seek(*fd, APR_SET, &off);
}

static apr_status_t create_dummy_file(apr_pool_t *p, apr_file_t **fd)
{
    apr_status_t rv;
    char *tmpfile;
    int i;
    apr_off_t off = 0L;
    tmpfile = tmpnam(tname_buf);

    if ((tmpfile == NULL) || (*tmpfile == '\0')) {
        fprintf(stderr, "unable to generate temporary filename\n");
        if (errno == 0) {
            errno = ENOENT;
        }
        perror("tmpnam");
        return APR_ENOENT;
    }
    rv = apr_file_open(fd, "c:\\tmpfile.xml", APR_CREATE|APR_TRUNCATE/*|APR_DELONCLOSE*/|
                       APR_READ|APR_WRITE|APR_EXCL, APR_OS_DEFAULT, p);

    if (rv != APR_SUCCESS)
        return rv;
    rv = apr_file_puts("<?xml version=\"1.0\" ?>\n<mary>"
                       "<had a=\"little\"/><lamb its='fleece "
                       "was white as snow' />\n", *fd);
    if (rv != APR_SUCCESS)
        return rv;

    for (i = 0; i < 50; i++) {
        rv = apr_file_puts("<hmm roast=\"lamb\" "
                           "for=\"dinner\">yummy</hmm>\n", *fd);
        if (rv != APR_SUCCESS)
            return rv;
    }
    rv = apr_file_puts("</mary>\n", *fd);
    if (rv != APR_SUCCESS)
        return rv;

    rv = apr_file_seek(*fd, APR_SET, &off);
    return rv;
}

static void dump_xml(apr_xml_elem *e, int level)
{
    apr_xml_attr *a;
    apr_xml_elem *ec;

    printf("%d: element %s\n", level, e->name);
    if (e->attr) {
        a = e->attr;
        printf("%d:\tattrs\t", level);
        while (a) {
            printf("%s=%s\t", a->name, a->value);
            a = a->next;
        }
        printf("\n");
    }
    if (e->first_child) {
        ec = e->first_child;
        while (ec) {
            dump_xml(ec, level + 1);
            ec = ec->next;
        }
    }
}

static void oops(const char *s1, const char *s2, apr_status_t rv)
{
    if (progname)
        fprintf(stderr, "%s: ", progname);
    fprintf(stderr, s1, s2);
    if (rv != APR_SUCCESS) {
        char buf[120];

        fprintf(stderr, " (%s)", apr_strerror(rv, buf, sizeof buf));
    }
    fprintf(stderr, "\n");
    exit(1);
}

int main(int argc, const char *const * argv)
{
	try
	{
		apr_pool_t *pool;
		apr_file_t *fd;
		apr_xml_parser *parser;
		apr_xml_doc *doc;
		apr_status_t rv;
		char errbuf[2000];
		char errbufXML[2000];

		(void) apr_initialize();
		apr_pool_create(&pool, NULL);
		progname = argv[0];
		if (argc == 1) {
			rv = create_dummy_file(pool, &fd);
			
			if (rv != APR_SUCCESS) {
				oops("cannot create dummy file", "oops", rv);
			}
		}
		else {
			if (argc == 2) {
				rv = apr_file_open(&fd, argv[1], APR_READ, APR_OS_DEFAULT, pool);
				if (rv != APR_SUCCESS) {
					oops("cannot open: %s", argv[1], rv);
				}
			}
			else {
				oops("usage: %s", usage, 0);
			}
		}
		rv = apr_xml_parse_file(pool, &parser, &doc, fd, 2000);
		if (rv != APR_SUCCESS) {
			fprintf(stderr, "APR Error %s\nXML Error: %s\n",
					apr_strerror(rv, errbuf, sizeof(errbuf)),
				 apr_xml_parser_geterror(parser, errbufXML, sizeof(errbufXML)));
			return rv;
		}
		dump_xml(doc->root, 0);
		apr_file_close(fd);
		if (argc == 1) {
			rv = create_dummy_file_error(pool, &fd);
			if (rv != APR_SUCCESS) {
				oops("cannot create error dummy file", "oops", rv);
			}
			rv = apr_xml_parse_file(pool, &parser, &doc, fd, 2000);
			if (rv != APR_SUCCESS) {
				fprintf(stdout, "APR Error %s\nXML Error: %s "
								"(EXPECTED) This is good.\n",
						apr_strerror(rv, errbuf, sizeof(errbuf)),
				 apr_xml_parser_geterror(parser, errbufXML, sizeof(errbufXML)));
				 rv = APR_SUCCESS; /* reset the return code, as the test is supposed to get this error */
			}
			else {
				fprintf(stderr, "Expected an error, but didn't get one ;( ");
				return APR_EGENERAL;
			}
		}
		apr_pool_destroy(pool);
		apr_terminate();
		return rv;
	}
	catch (...)
	{
		fprintf(stderr, "\n");	
	}
	return -1;
}