/*

 * dstring.h --

 *

 *	This file implements an abstract data type for dynamic strings.

 *

 *	Note: The behavior of the functions that modify the a dynamic

 *	string is undefined if an argument strings points into the

 *	dynamic string itself.

 *

 * Copyright (c) 2006 Juergen Schoenwaelder, International University Bremen.

 *

 * See the file "COPYING" for information on usage and redistribution

 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.

 *

 * @(#) $Id: smilint.c 1867 2004-10-06 13:45:31Z strauss $

 */

#ifndef _DSTRING_H_

#define _DSTRING_H_

#include <stdarg.h>

#ifdef __GNUC__

# define inline /* extern */ static inline

#else 

#ifdef HAVE_WIN_H

# define inline __inline

#endif

#endif

struct dstring {

    char   *str;

    size_t len;

};

typedef struct dstring dstring_t;

inline char*

dstring_str(dstring_t *ds)

{

    return ds ? ds->str : NULL;

}

inline size_t

dstring_len(dstring_t *ds)

{

    return ds ? ds->len : 0;

}

extern dstring_t*

dstring_new(void);

extern dstring_t*

dstring_delete(dstring_t *ds);

extern dstring_t*

dstring_assign(dstring_t *ds, const char *s);

extern dstring_t*

dstring_concat(dstring_t *ds, ...);

extern dstring_t*

dstring_append(dstring_t *ds, const char *s);

extern dstring_t*

dstring_append_char(dstring_t *ds, const char c);

extern dstring_t*

dstring_append_printf(dstring_t *ds, const char *format, ...);

extern dstring_t*

dstring_append_vprintf(dstring_t *ds, const char *format, va_list ap);

extern dstring_t*

dstring_printf(dstring_t *ds, const char *format, ...);

extern dstring_t*

dstring_vprintf(dstring_t *ds, const char *format, va_list ap);

extern dstring_t*

dstring_truncate(dstring_t *ds, int len);

extern dstring_t*

dstring_expand(dstring_t *ds, int len, char fill);

#ifdef __GNUC__

#undef inline

#endif

#endif