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 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
  31 #error "Only <glib.h> can be included directly."
  32 #endif
  33
  34 #include <stdarg.h>
  35 #include <glib/gmacros.h>
  36 #include <glib/gtypes.h>
  37
  38 G_BEGIN_DECLS
  39
  40 /* Functions like the ones in <ctype.h> that are not affected by locale. */
  41 typedef enum {
  42   G_ASCII_ALNUM  = 1 << 0,
  43   G_ASCII_ALPHA  = 1 << 1,
  44   G_ASCII_CNTRL  = 1 << 2,
  45   G_ASCII_DIGIT  = 1 << 3,
  46   G_ASCII_GRAPH  = 1 << 4,
  47   G_ASCII_LOWER  = 1 << 5,
  48   G_ASCII_PRINT  = 1 << 6,
  49   G_ASCII_PUNCT  = 1 << 7,
  50   G_ASCII_SPACE  = 1 << 8,
  51   G_ASCII_UPPER  = 1 << 9,
  52   G_ASCII_XDIGIT = 1 << 10
  53 } GAsciiType;
  54
  55 GLIB_VAR const guint16 * const g_ascii_table;
  56
  57 #define g_ascii_isalnum(c) \
  58   ((g_ascii_table[(guchar) (c)] & G_ASCII_ALNUM) != 0)
  59
  60 #define g_ascii_isalpha(c) \
  61   ((g_ascii_table[(guchar) (c)] & G_ASCII_ALPHA) != 0)
  62
  63 #define g_ascii_iscntrl(c) \
  64   ((g_ascii_table[(guchar) (c)] & G_ASCII_CNTRL) != 0)
  65
  66 #define g_ascii_isdigit(c) \
  67   ((g_ascii_table[(guchar) (c)] & G_ASCII_DIGIT) != 0)
  68
  69 #define g_ascii_isgraph(c) \
  70   ((g_ascii_table[(guchar) (c)] & G_ASCII_GRAPH) != 0)
  71
  72 #define g_ascii_islower(c) \
  73   ((g_ascii_table[(guchar) (c)] & G_ASCII_LOWER) != 0)
  74
  75 #define g_ascii_isprint(c) \
  76   ((g_ascii_table[(guchar) (c)] & G_ASCII_PRINT) != 0)
  77
  78 #define g_ascii_ispunct(c) \
  79   ((g_ascii_table[(guchar) (c)] & G_ASCII_PUNCT) != 0)
  80
  81 #define g_ascii_isspace(c) \
  82   ((g_ascii_table[(guchar) (c)] & G_ASCII_SPACE) != 0)
  83
  84 #define g_ascii_isupper(c) \
  85   ((g_ascii_table[(guchar) (c)] & G_ASCII_UPPER) != 0)
  86
  87 #define g_ascii_isxdigit(c) \
  88   ((g_ascii_table[(guchar) (c)] & G_ASCII_XDIGIT) != 0)
  89
  90 GLIB_AVAILABLE_IN_ALL
  91 gchar                 g_ascii_tolower  (gchar        c) G_GNUC_CONST;
  92 GLIB_AVAILABLE_IN_ALL
  93 gchar                 g_ascii_toupper  (gchar        c) G_GNUC_CONST;
  94
  95 GLIB_AVAILABLE_IN_ALL
  96 gint                  g_ascii_digit_value  (gchar    c) G_GNUC_CONST;
  97 GLIB_AVAILABLE_IN_ALL
  98 gint                  g_ascii_xdigit_value (gchar    c) G_GNUC_CONST;
  99
 100 /* String utility functions that modify a string argument or
 101  * return a constant string that must not be freed.
 102  */
 103 #define  G_STR_DELIMITERS       "_-|> <."
 104 GLIB_AVAILABLE_IN_ALL
 105 gchar*                g_strdelimit     (gchar        *string,
 106                                         const gchar  *delimiters,
 107                                         gchar         new_delimiter);
 108 GLIB_AVAILABLE_IN_ALL
 109 gchar*                g_strcanon       (gchar        *string,
 110                                         const gchar  *valid_chars,
 111                                         gchar         substitutor);
 112 GLIB_AVAILABLE_IN_ALL
 113 const gchar *         g_strerror       (gint          errnum) G_GNUC_CONST;
 114 GLIB_AVAILABLE_IN_ALL
 115 const gchar *         g_strsignal      (gint          signum) G_GNUC_CONST;
 116 GLIB_AVAILABLE_IN_ALL
 117 gchar *               g_strreverse     (gchar        *string);
 118 GLIB_AVAILABLE_IN_ALL
 119 gsize                 g_strlcpy        (gchar        *dest,
 120                                         const gchar  *src,
 121                                         gsize         dest_size);
 122 GLIB_AVAILABLE_IN_ALL
 123 gsize                 g_strlcat        (gchar        *dest,
 124                                         const gchar  *src,
 125                                         gsize         dest_size);
 126 GLIB_AVAILABLE_IN_ALL
 127 gchar *               g_strstr_len     (const gchar  *haystack,
 128                                         gssize        haystack_len,
 129                                         const gchar  *needle);
 130 GLIB_AVAILABLE_IN_ALL
 131 gchar *               g_strrstr        (const gchar  *haystack,
 132                                         const gchar  *needle);
 133 GLIB_AVAILABLE_IN_ALL
 134 gchar *               g_strrstr_len    (const gchar  *haystack,
 135                                         gssize        haystack_len,
 136                                         const gchar  *needle);
 137
 138 GLIB_AVAILABLE_IN_ALL
 139 gboolean              g_str_has_suffix (const gchar  *str,
 140                                         const gchar  *suffix);
 141 GLIB_AVAILABLE_IN_ALL
 142 gboolean              g_str_has_prefix (const gchar  *str,
 143                                         const gchar  *prefix);
 144
 145 /* String to/from double conversion functions */
 146
 147 GLIB_AVAILABLE_IN_ALL
 148 gdouble               g_strtod         (const gchar  *nptr,
 149                                         gchar       **endptr);
 150 GLIB_AVAILABLE_IN_ALL
 151 gdouble               g_ascii_strtod   (const gchar  *nptr,
 152                                         gchar       **endptr);
 153 GLIB_AVAILABLE_IN_ALL
 154 guint64               g_ascii_strtoull (const gchar *nptr,
 155                                         gchar      **endptr,
 156                                         guint        base);
 157 GLIB_AVAILABLE_IN_ALL
 158 gint64                g_ascii_strtoll  (const gchar *nptr,
 159                                         gchar      **endptr,
 160                                         guint        base);
 161 /* 29 bytes should enough for all possible values that
 162  * g_ascii_dtostr can produce.
 163  * Then add 10 for good measure */
 164 #define G_ASCII_DTOSTR_BUF_SIZE (29 + 10)
 165 GLIB_AVAILABLE_IN_ALL
 166 gchar *               g_ascii_dtostr   (gchar        *buffer,
 167                                         gint          buf_len,
 168                                         gdouble       d);
 169 GLIB_AVAILABLE_IN_ALL
 170 gchar *               g_ascii_formatd  (gchar        *buffer,
 171                                         gint          buf_len,
 172                                         const gchar  *format,
 173                                         gdouble       d);
 174
 175 /* removes leading spaces */
 176 GLIB_AVAILABLE_IN_ALL
 177 gchar*                g_strchug        (gchar        *string);
 178 /* removes trailing spaces */
 179 GLIB_AVAILABLE_IN_ALL
 180 gchar*                g_strchomp       (gchar        *string);
 181 /* removes leading & trailing spaces */
 182 #define g_strstrip( string )    g_strchomp (g_strchug (string))
 183
 184 GLIB_AVAILABLE_IN_ALL
 185 gint                  g_ascii_strcasecmp  (const gchar *s1,
 186                                            const gchar *s2);
 187 GLIB_AVAILABLE_IN_ALL
 188 gint                  g_ascii_strncasecmp (const gchar *s1,
 189                                            const gchar *s2,
 190                                            gsize        n);
 191 GLIB_AVAILABLE_IN_ALL
 192 gchar*                g_ascii_strdown     (const gchar *str,
 193                                            gssize       len) G_GNUC_MALLOC;
 194 GLIB_AVAILABLE_IN_ALL
 195 gchar*                g_ascii_strup       (const gchar *str,
 196                                            gssize       len) G_GNUC_MALLOC;
 197
 198
 199 GLIB_DEPRECATED
 200 gint                  g_strcasecmp     (const gchar *s1,
 201                                         const gchar *s2);
 202 GLIB_DEPRECATED
 203 gint                  g_strncasecmp    (const gchar *s1,
 204                                         const gchar *s2,
 205                                         guint        n);
 206 GLIB_DEPRECATED
 207 gchar*                g_strdown        (gchar       *string);
 208 GLIB_DEPRECATED
 209 gchar*                g_strup          (gchar       *string);
 210
 211
 212 /* String utility functions that return a newly allocated string which
 213  * ought to be freed with g_free from the caller at some point.
 214  */
 215 GLIB_AVAILABLE_IN_ALL
 216 gchar*                g_strdup         (const gchar *str) G_GNUC_MALLOC;
 217 GLIB_AVAILABLE_IN_ALL
 218 gchar*                g_strdup_printf  (const gchar *format,
 219                                         ...) G_GNUC_PRINTF (1, 2) G_GNUC_MALLOC;
 220 GLIB_AVAILABLE_IN_ALL
 221 gchar*                g_strdup_vprintf (const gchar *format,
 222                                         va_list      args) G_GNUC_PRINTF(1, 0)
 223                                         G_GNUC_MALLOC;
 224 GLIB_AVAILABLE_IN_ALL
 225 gchar*                g_strndup        (const gchar *str,
 226                                         gsize        n) G_GNUC_MALLOC;
 227 GLIB_AVAILABLE_IN_ALL
 228 gchar*                g_strnfill       (gsize        length,
 229                                         gchar        fill_char) G_GNUC_MALLOC;
 230 GLIB_AVAILABLE_IN_ALL
 231 gchar*                g_strconcat      (const gchar *string1,
 232                                         ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
 233 GLIB_AVAILABLE_IN_ALL
 234 gchar*                g_strjoin        (const gchar  *separator,
 235                                         ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
 236
 237 /* Make a copy of a string interpreting C string -style escape
 238  * sequences. Inverse of g_strescape. The recognized sequences are \b
 239  * \f \n \r \t \\ \" and the octal format.
 240  */
 241 GLIB_AVAILABLE_IN_ALL
 242 gchar*                g_strcompress    (const gchar *source) G_GNUC_MALLOC;
 243
 244 /* Copy a string escaping nonprintable characters like in C strings.
 245  * Inverse of g_strcompress. The exceptions parameter, if non-NULL, points
 246  * to a string containing characters that are not to be escaped.
 247  *
 248  * Deprecated API: gchar* g_strescape (const gchar *source);
 249  * Luckily this function wasn't used much, using NULL as second parameter
 250  * provides mostly identical semantics.
 251  */
 252 GLIB_AVAILABLE_IN_ALL
 253 gchar*                g_strescape      (const gchar *source,
 254                                         const gchar *exceptions) G_GNUC_MALLOC;
 255
 256 GLIB_AVAILABLE_IN_ALL
 257 gpointer              g_memdup         (gconstpointer mem,
 258                                         guint          byte_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(2);
 259
 260 /* NULL terminated string arrays.
 261  * g_strsplit(), g_strsplit_set() split up string into max_tokens tokens
 262  * at delim and return a newly allocated string array.
 263  * g_strjoinv() concatenates all of str_array's strings, sliding in an
 264  * optional separator, the returned string is newly allocated.
 265  * g_strfreev() frees the array itself and all of its strings.
 266  * g_strdupv() copies a NULL-terminated array of strings
 267  * g_strv_length() returns the length of a NULL-terminated array of strings
 268  */
 269 GLIB_AVAILABLE_IN_ALL
 270 gchar**               g_strsplit       (const gchar  *string,
 271                                         const gchar  *delimiter,
 272                                         gint          max_tokens) G_GNUC_MALLOC;
 273 GLIB_AVAILABLE_IN_ALL
 274 gchar **              g_strsplit_set   (const gchar *string,
 275                                         const gchar *delimiters,
 276                                         gint         max_tokens) G_GNUC_MALLOC;
 277 GLIB_AVAILABLE_IN_ALL
 278 gchar*                g_strjoinv       (const gchar  *separator,
 279                                         gchar       **str_array) G_GNUC_MALLOC;
 280 GLIB_AVAILABLE_IN_ALL
 281 void                  g_strfreev       (gchar       **str_array);
 282 GLIB_AVAILABLE_IN_ALL
 283 gchar**               g_strdupv        (gchar       **str_array) G_GNUC_MALLOC;
 284 GLIB_AVAILABLE_IN_ALL
 285 guint                 g_strv_length    (gchar       **str_array);
 286
 287 GLIB_AVAILABLE_IN_ALL
 288 gchar*                g_stpcpy         (gchar        *dest,
 289                                         const char   *src);
 290
 291 G_END_DECLS
 292
 293 #endif /* __G_STRFUNCS_H__ */