src/server/sstring.h

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2011 Olaf Wintermann. 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.
 *
 * 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 HOLDER 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.
 */

#ifndef _SSTRING_H
#define	_SSTRING_H

#define S(s) { s, sizeof(s)-1 }
#define ST(s) sstrn(s, sizeof(s)-1)

#ifdef	__cplusplus
extern "C" {
#endif

typedef struct sstring {
    char   *ptr;
    size_t length;
} sstr_t;

/*
 * creates a new sstr_t from a null terminated string
 *
 * s  null terminated string
 */
sstr_t sstr (char *s);

/*
 * creates a new sstr_t from a string and length
 *
 * s  string
 * n  length of string
 */
sstr_t sstrn (char *s, size_t n);


/*
 * gets the length of n sstr_t strings
 *
 * n    number of strings
 * s    string
 * ...  strings
 */
size_t sstrnlen (size_t n, sstr_t s, ...);


/*
 * concatenates n strings
 *
 * n    number of strings
 * s    new string with enough memory allocated
 * ...  strings
 */
sstr_t sstrncat (size_t n, sstr_t s, sstr_t c1, ...);


/*
 * 
 */
sstr_t sstrsubs (sstr_t s, size_t start);

/*
 * 
 */
sstr_t sstrsubsl (sstr_t s, size_t start, size_t end);


int sstrcmp(sstr_t s1, sstr_t s2);

sstr_t sstrdub(sstr_t s);

#ifdef	__cplusplus
}
#endif

#endif	/* _SSTRING_H */