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/* GLIB - Library of useful routines for C programming
 * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

/*
 * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
 * file for a list of people on the GLib Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GLib at ftp://ftp.gtk.org/pub/gtk/. 
 */

#ifndef __G_STRFUNCS_H__
#define __G_STRFUNCS_H__

#include <stdarg.h>
#include <gtypes.h>

G_BEGIN_DECLS

/* String utility functions that modify a string argument or
 * return a constant string that must not be freed.
 */
#define	 G_STR_DELIMITERS	"_-|> <."
gchar*	 g_strdelimit		(gchar	     *string,
				 const gchar *delimiters,
				 gchar	      new_delimiter);
gchar*	 g_strcanon		(gchar       *string,
				 const gchar *valid_chars,
				 gchar        subsitutor);
gdouble	 g_strtod		(const gchar *nptr,
				 gchar	    **endptr);
gchar*	 g_strerror		(gint	      errnum) G_GNUC_CONST;
gchar*	 g_strsignal		(gint	      signum) G_GNUC_CONST;
gint	 g_strcasecmp		(const gchar *s1,
				 const gchar *s2);
gint	 g_strncasecmp		(const gchar *s1,
				 const gchar *s2,
				 guint 	      n);
gchar*	 g_strdown		(gchar	     *string);
gchar*	 g_strup		(gchar	     *string);
gchar*	 g_strreverse		(gchar	     *string);
gsize	 g_strlcpy		(gchar	     *dest,
				 const gchar *src,
				 gsize        dest_size);
gsize	 g_strlcat              (gchar	     *dest,
				 const gchar *src,
				 gsize        dest_size);
/* removes leading spaces */
gchar*   g_strchug              (gchar        *string);
/* removes trailing spaces */
gchar*  g_strchomp              (gchar        *string);
/* removes leading & trailing spaces */
#define g_strstrip( string )	g_strchomp (g_strchug (string))

/* String utility functions that return a newly allocated string which
 * ought to be freed with g_free from the caller at some point.
 */
gchar*	 g_strdup		(const gchar *str);
gchar*	 g_strdup_printf	(const gchar *format,
				 ...) G_GNUC_PRINTF (1, 2);
gchar*	 g_strdup_vprintf	(const gchar *format,
				 va_list      args);
gchar*	 g_strndup		(const gchar *str,
				 guint	      n);
gchar*	 g_strnfill		(guint	      length,
				 gchar	      fill_char);
gchar*	 g_strconcat		(const gchar *string1,
				 ...); /* NULL terminated */
gchar*   g_strjoin		(const gchar  *separator,
				 ...); /* NULL terminated */
/* Make a copy of a string interpreting C string -style escape
 * sequences. Inverse of g_strescape. The recognized sequences are \b
 * \f \n \r \t \\ \" and the octal format.
 */
gchar*   g_strcompress		(const gchar *source);

/* Copy a string escaping nonprintable characters like in C strings.
 * Inverse of g_strcompress. The exceptions parameter, if non-NULL, points
 * to a string containing characters that are not to be escaped.
 *
 * Deprecated API: gchar* g_strescape (const gchar *source);
 * Luckily this function wasn't used much, using NULL as second parameter
 * provides mostly identical semantics.
 */
gchar*   g_strescape		(const gchar *source,
				 const gchar *exceptions);

gpointer g_memdup		(gconstpointer mem,
				 guint	       byte_size);

/* NULL terminated string arrays.
 * g_strsplit() splits up string into max_tokens tokens at delim and
 * returns a newly allocated string array.
 * g_strjoinv() concatenates all of str_array's strings, sliding in an
 * optional separator, the returned string is newly allocated.
 * g_strfreev() frees the array itself and all of its strings.
 * g_strdupv() copies a NULL-terminated array of strings
 */
gchar**	 g_strsplit		(const gchar  *string,
				 const gchar  *delimiter,
				 gint          max_tokens);
gchar*   g_strjoinv		(const gchar  *separator,
				 gchar       **str_array);
void     g_strfreev		(gchar       **str_array);
gchar**  g_strdupv              (gchar       **str_array);

G_END_DECLS

#endif /* __G_STRFUNCS_H__ */