/*
 * Copyright (c) 2006 Kazuaki ODA.
 * Copyright (c) 2006 Mode2 inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the company nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $Id: ctr_xml.h 435 2006-11-11 08:45:02Z oda $
 */

#ifndef __CTR_XML_H__
#define __CTR_XML_H__

#include "apr_pools.h"
#include "apr_tables.h"
#include "ctr_util.h"

#define CTR_XML_UNKNOWN_INIT(_unknowns, _pool) do {                     \
    (_unknowns) = apr_array_make((_pool), 1, sizeof(const char *));     \
} while (0)

#define CTR_XML_UNKNOWN_EMPTY(_unknowns)                                \
    ((_unknowns)->nelts == 0)

#define CTR_XML_UNKNOWN_LAST(_unknowns)                                 \
    (*(const char **)CTR_ARRAY_LAST(_unknowns))

#define CTR_XML_UNKNOWN_PUSH(_unknowns, _tagname) do {                  \
    const char **_unknown = apr_array_push(_unknowns);                  \
    *_unknown = (_tagname);                                             \
} while (0)

#define CTR_XML_UNKNOWN_POP(_unknowns) do {                             \
    apr_array_pop(_unknowns);                                           \
} while (0)

typedef struct _ctr_xml_handler ctr_xml_handler_t;

struct _ctr_xml_handler {
    const char *(*start_element)(void *udata, const char *name,
                                 apr_table_t *attrs);
    const char *(*end_element)(void *udata, const char *name);
    const char *(*characters)(void *udata, const char *data);
};

const char *ctr_xml_file_parse(const ctr_xml_handler_t *hndl, apr_file_t *fd,
                               void *udata, apr_pool_t *pool);
const char *ctr_xml_str_parse(const ctr_xml_handler_t *hndl, const char *s,
                              void *udata, apr_pool_t *pool);

#endif  /* __CTR_XML_H__ */
