/*
 * Copyright (c) 1995, 1996 Gunther Schadow.  All rights reserved.
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef SUPPORT_H_
#define SUPPORT_H_

#include <pg_config.h>

#pragma interface

#include <string.h>
#include <sys/types.h>

#ifdef __cplusplus
#include <iostream.h>

extern "C" {
#endif

void *memchrs(const void *blk, const char *chrs, size_t len);
char *strsepc(char **str, char delim);
char *strlow(char *);
char *strup(char *);

size_t txlen(const char *);
char *txdup(const char *);

char *clws(char *);
char *trws(char *);

/* M10 check digit according to the HL7 v2.2 standard
 */
int cdM10(unsigned long x);

/* HP-CareVue Versions of MOD10 (n=10) and MOD11 (n=11) check
 * digit algorithm
 */
int cdmod(const char*, int n);

/*
 * These have escape character rules which are irrelevant for HL7
 */
char *strsepe(char **str, const char *delim, char esc);
char *strsepce(char **str, char delim, char esc);
void *memchrse(const void *blk, const char *chrs, size_t len, char esc);

#ifdef __cplusplus
}

/* FUNCTION: match
 *
 * Seek the stream `is' for any character in the string `dset'.
 * If one is found stop *after* the delimiter character and test if we
 * have just found the first character of `dset'.
 *
 * RETURN: TRUE  if we stopped at the first character of `dset'
 *         FALSE otherwise
 */
bool match(istream &is, const char *dset);

/* FUNCTION: seek
 *
 * Seek the stream is for any character in the null termiated string
 * dset. Stop reading *at* the found delimiter character.
 * 
 * RETURN: SUCCESS if a delimiter was found
 *         FAIL    if the stream ended before a delimiter was found
 *
 * DO NOT USE SKIP IF YOU REALLY MEAN MATCH!
 *   i.e. don't use such sequences like:
 *     {
 *        skip(is,dset);
 *        is.get();
 *     }
 */
result skip (istream &is, const char *dset);

#endif /* __cplusplus */
#endif /* ! SUPPORT_H_ */