glib/gstrfuncs.h

   1 /* GLIB - Library of useful routines for C programming
   2  * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 /*
  21  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
  22  * file for a list of people on the GLib Team.  See the ChangeLog
  23  * files for a list of changes.  These files are distributed with
  24  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  25  */
  26
  27 #ifndef __G_STRFUNCS_H__
  28 #define __G_STRFUNCS_H__
  29
  30 #include <stdarg.h>
  31 #include <glib/gtypes.h>
  32
  33 G_BEGIN_DECLS
  34
  35 /* Functions like the ones in <ctype.h> that are not affected by locale. */
  36 typedef enum {
  37   G_ASCII_ALNUM  = 1 << 0,
  38   G_ASCII_ALPHA  = 1 << 1,
  39   G_ASCII_CNTRL  = 1 << 2,
  40   G_ASCII_DIGIT  = 1 << 3,
  41   G_ASCII_GRAPH  = 1 << 4,
  42   G_ASCII_LOWER  = 1 << 5,
  43   G_ASCII_PRINT  = 1 << 6,
  44   G_ASCII_PUNCT  = 1 << 7,
  45   G_ASCII_SPACE  = 1 << 8,
  46   G_ASCII_UPPER  = 1 << 9,
  47   G_ASCII_XDIGIT = 1 << 10
  48 } GAsciiType;
  49
  50 GLIB_VAR const guint16 * const g_ascii_table;
  51
  52 #define g_ascii_isalnum(c) \
  53   ((g_ascii_table[(guchar) (c)] & G_ASCII_ALNUM) != 0)
  54
  55 #define g_ascii_isalpha(c) \
  56   ((g_ascii_table[(guchar) (c)] & G_ASCII_ALPHA) != 0)
  57
  58 #define g_ascii_iscntrl(c) \
  59   ((g_ascii_table[(guchar) (c)] & G_ASCII_CNTRL) != 0)
  60
  61 #define g_ascii_isdigit(c) \
  62   ((g_ascii_table[(guchar) (c)] & G_ASCII_DIGIT) != 0)
  63
  64 #define g_ascii_isgraph(c) \
  65   ((g_ascii_table[(guchar) (c)] & G_ASCII_GRAPH) != 0)
  66
  67 #define g_ascii_islower(c) \
  68   ((g_ascii_table[(guchar) (c)] & G_ASCII_LOWER) != 0)
  69
  70 #define g_ascii_isprint(c) \
  71   ((g_ascii_table[(guchar) (c)] & G_ASCII_PRINT) != 0)
  72
  73 #define g_ascii_ispunct(c) \
  74   ((g_ascii_table[(guchar) (c)] & G_ASCII_PUNCT) != 0)
  75
  76 #define g_ascii_isspace(c) \
  77   ((g_ascii_table[(guchar) (c)] & G_ASCII_SPACE) != 0)
  78
  79 #define g_ascii_isupper(c) \
  80   ((g_ascii_table[(guchar) (c)] & G_ASCII_UPPER) != 0)
  81
  82 #define g_ascii_isxdigit(c) \
  83   ((g_ascii_table[(guchar) (c)] & G_ASCII_XDIGIT) != 0)
  84
  85 gchar                 g_ascii_tolower  (gchar        c) G_GNUC_CONST;
  86 gchar                 g_ascii_toupper  (gchar        c) G_GNUC_CONST;
  87
  88 gint                  g_ascii_digit_value  (gchar    c) G_GNUC_CONST;
  89 gint                  g_ascii_xdigit_value (gchar    c) G_GNUC_CONST;
  90
  91 /* String utility functions that modify a string argument or
  92  * return a constant string that must not be freed.
  93  */
  94 #define  G_STR_DELIMITERS       "_-|> <."
  95 gchar*                g_strdelimit     (gchar        *string,
  96                                         const gchar  *delimiters,
  97                                         gchar         new_delimiter);
  98 gchar*                g_strcanon       (gchar        *string,
  99                                         const gchar  *valid_chars,
 100                                         gchar         substitutor);
 101 G_CONST_RETURN gchar* g_strerror       (gint          errnum) G_GNUC_CONST;
 102 G_CONST_RETURN gchar* g_strsignal      (gint          signum) G_GNUC_CONST;
 103 gchar*                g_strreverse     (gchar        *string);
 104 gsize                 g_strlcpy        (gchar        *dest,
 105                                         const gchar  *src,
 106                                         gsize         dest_size);
 107 gsize                 g_strlcat        (gchar        *dest,
 108                                         const gchar  *src,
 109                                         gsize         dest_size);
 110 gchar *               g_strstr_len     (const gchar  *haystack,
 111                                         gssize        haystack_len,
 112                                         const gchar  *needle);
 113 gchar *               g_strrstr        (const gchar  *haystack,
 114                                         const gchar  *needle);
 115 gchar *               g_strrstr_len    (const gchar  *haystack,
 116                                         gssize        haystack_len,
 117                                         const gchar  *needle);
 118
 119 gboolean              g_str_has_suffix (const gchar  *str,
 120                                         const gchar  *suffix);
 121 gboolean              g_str_has_prefix (const gchar  *str,
 122                                         const gchar  *prefix);
 123
 124 /* String to/from double conversion functions */
 125
 126 gdouble               g_strtod         (const gchar  *nptr,
 127                                         gchar       **endptr);
 128 gdouble               g_ascii_strtod   (const gchar  *nptr,
 129                                         gchar       **endptr);
 130 guint64               g_ascii_strtoull (const gchar *nptr,
 131                                         gchar      **endptr,
 132                                         guint        base);
 133 /* 29 bytes should enough for all possible values that
 134  * g_ascii_dtostr can produce.
 135  * Then add 10 for good measure */
 136 #define G_ASCII_DTOSTR_BUF_SIZE (29 + 10)
 137 gchar *               g_ascii_dtostr   (gchar        *buffer,
 138                                         gint          buf_len,
 139                                         gdouble       d);
 140 gchar *               g_ascii_formatd  (gchar        *buffer,
 141                                         gint          buf_len,
 142                                         const gchar  *format,
 143                                         gdouble       d);
 144
 145 /* removes leading spaces */
 146 gchar*                g_strchug        (gchar        *string);
 147 /* removes trailing spaces */
 148 gchar*                g_strchomp       (gchar        *string);
 149 /* removes leading & trailing spaces */
 150 #define g_strstrip( string )    g_strchomp (g_strchug (string))
 151
 152 gint                  g_ascii_strcasecmp  (const gchar *s1,
 153                                            const gchar *s2);
 154 gint                  g_ascii_strncasecmp (const gchar *s1,
 155                                            const gchar *s2,
 156                                            gsize        n);
 157 gchar*                g_ascii_strdown     (const gchar *str,
 158                                            gssize       len);
 159 gchar*                g_ascii_strup       (const gchar *str,
 160                                            gssize       len);
 161
 162 #ifndef G_DISABLE_DEPRECATED
 163
 164 /* The following four functions are deprecated and will be removed in
 165  * the next major release. They use the locale-specific tolower and
 166  * toupper, which is almost never the right thing.
 167  */
 168
 169 gint                  g_strcasecmp     (const gchar *s1,
 170                                         const gchar *s2);
 171 gint                  g_strncasecmp    (const gchar *s1,
 172                                         const gchar *s2,
 173                                         guint        n);
 174 gchar*                g_strdown        (gchar        *string);
 175 gchar*                g_strup          (gchar        *string);
 176
 177 #endif /* G_DISABLE_DEPRECATED */
 178
 179 /* String utility functions that return a newly allocated string which
 180  * ought to be freed with g_free from the caller at some point.
 181  */
 182 gchar*                g_strdup         (const gchar *str);
 183 gchar*                g_strdup_printf  (const gchar *format,
 184                                         ...) G_GNUC_PRINTF (1, 2);
 185 gchar*                g_strdup_vprintf (const gchar *format,
 186                                         va_list      args);
 187 gchar*                g_strndup        (const gchar *str,
 188                                         gsize        n);
 189 gchar*                g_strnfill       (gsize        length,
 190                                         gchar        fill_char);
 191 gchar*                g_strconcat      (const gchar *string1,
 192                                         ...); /* NULL terminated */
 193 gchar*                g_strjoin        (const gchar  *separator,
 194                                         ...); /* NULL terminated */
 195 /* Make a copy of a string interpreting C string -style escape
 196  * sequences. Inverse of g_strescape. The recognized sequences are \b
 197  * \f \n \r \t \\ \" and the octal format.
 198  */
 199 gchar*                g_strcompress    (const gchar *source);
 200
 201 /* Copy a string escaping nonprintable characters like in C strings.
 202  * Inverse of g_strcompress. The exceptions parameter, if non-NULL, points
 203  * to a string containing characters that are not to be escaped.
 204  *
 205  * Deprecated API: gchar* g_strescape (const gchar *source);
 206  * Luckily this function wasn't used much, using NULL as second parameter
 207  * provides mostly identical semantics.
 208  */
 209 gchar*                g_strescape      (const gchar *source,
 210                                         const gchar *exceptions);
 211
 212 gpointer              g_memdup         (gconstpointer mem,
 213                                         guint          byte_size);
 214
 215 /* NULL terminated string arrays.
 216  * g_strsplit() splits up string into max_tokens tokens at delim and
 217  * returns a newly allocated string array.
 218  * g_strjoinv() concatenates all of str_array's strings, sliding in an
 219  * optional separator, the returned string is newly allocated.
 220  * g_strfreev() frees the array itself and all of its strings.
 221  * g_strdupv() copies a NULL-terminated array of strings
 222  */
 223 gchar**               g_strsplit       (const gchar  *string,
 224                                         const gchar  *delimiter,
 225                                         gint          max_tokens);
 226 gchar*                g_strjoinv       (const gchar  *separator,
 227                                         gchar       **str_array);
 228 void                  g_strfreev       (gchar       **str_array);
 229 gchar**               g_strdupv        (gchar       **str_array);
 230
 231 gchar*                g_stpcpy         (gchar        *dest,
 232                                         const char   *src);
 233
 234 G_END_DECLS
 235
 236 #endif /* __G_STRFUNCS_H__ */