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/* Copyright (c) 2000, 2002, 2003, 2005, 2007 MySQL AB
   Use is subject to license terms

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1335  USA  */


#ifndef _my_xml_h
#define _my_xml_h

#ifdef	__cplusplus
extern "C" {
#endif


#define MY_XML_OK	0
#define MY_XML_ERROR	1

/* 
  A flag whether to use absolute tag names in call-back functions,
  like "a", "a.b" and "a.b.c" (used in character set file parser),
  or relative names like "a", "b" and "c".
*/
#define MY_XML_FLAG_RELATIVE_NAMES 1

/*
  A flag whether to skip normilization of text values before calling
  call-back functions: i.e. skip leading/trailing spaces,
  \r, \n, \t characters.
*/
#define MY_XML_FLAG_SKIP_TEXT_NORMALIZATION 2

enum my_xml_node_type
{
  MY_XML_NODE_TAG,   /* can have TAG, ATTR and TEXT children */
  MY_XML_NODE_ATTR,  /* can have TEXT children               */
  MY_XML_NODE_TEXT   /* cannot have children                 */
};

typedef struct xml_stack_st
{
  int flags;
  enum my_xml_node_type current_node_type;
  char errstr[128];

  struct {
    char static_buffer[128];
    char *buffer;
    size_t buffer_size;
    char *start;
    char *end;
  } attr;

  const char *beg;
  const char *cur;
  const char *end;
  void *user_data;
  int  (*enter)(struct xml_stack_st *st,const char *val, size_t len);
  int  (*value)(struct xml_stack_st *st,const char *val, size_t len);
  int  (*leave_xml)(struct xml_stack_st *st,const char *val, size_t len);
} MY_XML_PARSER;

void my_xml_parser_create(MY_XML_PARSER *st);
void my_xml_parser_free(MY_XML_PARSER *st);
int  my_xml_parse(MY_XML_PARSER *st,const char *str, size_t len);

void my_xml_set_value_handler(MY_XML_PARSER *st, int (*)(MY_XML_PARSER *,
							 const char *,
							 size_t len));
void my_xml_set_enter_handler(MY_XML_PARSER *st, int (*)(MY_XML_PARSER *,
							 const char *,
							 size_t len));
void my_xml_set_leave_handler(MY_XML_PARSER *st, int (*)(MY_XML_PARSER *,
							 const char *,
							 size_t len));
void my_xml_set_user_data(MY_XML_PARSER *st, void *);

size_t my_xml_error_pos(MY_XML_PARSER *st);
uint my_xml_error_lineno(MY_XML_PARSER *st);

const char *my_xml_error_string(MY_XML_PARSER *st);

#ifdef	__cplusplus
}
#endif

#endif /* _my_xml_h */