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, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
  20  * file for a list of people on the GLib Team.  See the ChangeLog
  21  * files for a list of changes.  These files are distributed with
  22  * GLib at ftp://ftp.gtk.org/pub/gtk/.
  23  */
  24
  25 #ifndef __G_STRFUNCS_H__
  26 #define __G_STRFUNCS_H__
  27
  28 #if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
  29 #error "Only <glib.h> can be included directly."
  30 #endif
  31
  32 #include <stdarg.h>
  33 #include <glib/gmacros.h>
  34 #include <glib/gtypes.h>
  35
  36 G_BEGIN_DECLS
  37
  38 /* Functions like the ones in <ctype.h> that are not affected by locale. */
  39 typedef enum {
  40   G_ASCII_ALNUM  = 1 << 0,
  41   G_ASCII_ALPHA  = 1 << 1,
  42   G_ASCII_CNTRL  = 1 << 2,
  43   G_ASCII_DIGIT  = 1 << 3,
  44   G_ASCII_GRAPH  = 1 << 4,
  45   G_ASCII_LOWER  = 1 << 5,
  46   G_ASCII_PRINT  = 1 << 6,
  47   G_ASCII_PUNCT  = 1 << 7,
  48   G_ASCII_SPACE  = 1 << 8,
  49   G_ASCII_UPPER  = 1 << 9,
  50   G_ASCII_XDIGIT = 1 << 10
  51 } GAsciiType;
  52
  53 GLIB_VAR const guint16 * const g_ascii_table;
  54
  55 #define g_ascii_isalnum(c) \
  56   ((g_ascii_table[(guchar) (c)] & G_ASCII_ALNUM) != 0)
  57
  58 #define g_ascii_isalpha(c) \
  59   ((g_ascii_table[(guchar) (c)] & G_ASCII_ALPHA) != 0)
  60
  61 #define g_ascii_iscntrl(c) \
  62   ((g_ascii_table[(guchar) (c)] & G_ASCII_CNTRL) != 0)
  63
  64 #define g_ascii_isdigit(c) \
  65   ((g_ascii_table[(guchar) (c)] & G_ASCII_DIGIT) != 0)
  66
  67 #define g_ascii_isgraph(c) \
  68   ((g_ascii_table[(guchar) (c)] & G_ASCII_GRAPH) != 0)
  69
  70 #define g_ascii_islower(c) \
  71   ((g_ascii_table[(guchar) (c)] & G_ASCII_LOWER) != 0)
  72
  73 #define g_ascii_isprint(c) \
  74   ((g_ascii_table[(guchar) (c)] & G_ASCII_PRINT) != 0)
  75
  76 #define g_ascii_ispunct(c) \
  77   ((g_ascii_table[(guchar) (c)] & G_ASCII_PUNCT) != 0)
  78
  79 #define g_ascii_isspace(c) \
  80   ((g_ascii_table[(guchar) (c)] & G_ASCII_SPACE) != 0)
  81
  82 #define g_ascii_isupper(c) \
  83   ((g_ascii_table[(guchar) (c)] & G_ASCII_UPPER) != 0)
  84
  85 #define g_ascii_isxdigit(c) \
  86   ((g_ascii_table[(guchar) (c)] & G_ASCII_XDIGIT) != 0)
  87
  88 GLIB_AVAILABLE_IN_ALL
  89 gchar                 g_ascii_tolower  (gchar        c) G_GNUC_CONST;
  90 GLIB_AVAILABLE_IN_ALL
  91 gchar                 g_ascii_toupper  (gchar        c) G_GNUC_CONST;
  92
  93 GLIB_AVAILABLE_IN_ALL
  94 gint                  g_ascii_digit_value  (gchar    c) G_GNUC_CONST;
  95 GLIB_AVAILABLE_IN_ALL
  96 gint                  g_ascii_xdigit_value (gchar    c) G_GNUC_CONST;
  97
  98 /* String utility functions that modify a string argument or
  99  * return a constant string that must not be freed.
 100  */
 101 #define  G_STR_DELIMITERS       "_-|> <."
 102 GLIB_AVAILABLE_IN_ALL
 103 gchar*                g_strdelimit     (gchar        *string,
 104                                         const gchar  *delimiters,
 105                                         gchar         new_delimiter);
 106 GLIB_AVAILABLE_IN_ALL
 107 gchar*                g_strcanon       (gchar        *string,
 108                                         const gchar  *valid_chars,
 109                                         gchar         substitutor);
 110 GLIB_AVAILABLE_IN_ALL
 111 const gchar *         g_strerror       (gint          errnum) G_GNUC_CONST;
 112 GLIB_AVAILABLE_IN_ALL
 113 const gchar *         g_strsignal      (gint          signum) G_GNUC_CONST;
 114 GLIB_AVAILABLE_IN_ALL
 115 gchar *               g_strreverse     (gchar        *string);
 116 GLIB_AVAILABLE_IN_ALL
 117 gsize                 g_strlcpy        (gchar        *dest,
 118                                         const gchar  *src,
 119                                         gsize         dest_size);
 120 GLIB_AVAILABLE_IN_ALL
 121 gsize                 g_strlcat        (gchar        *dest,
 122                                         const gchar  *src,
 123                                         gsize         dest_size);
 124 GLIB_AVAILABLE_IN_ALL
 125 gchar *               g_strstr_len     (const gchar  *haystack,
 126                                         gssize        haystack_len,
 127                                         const gchar  *needle);
 128 GLIB_AVAILABLE_IN_ALL
 129 gchar *               g_strrstr        (const gchar  *haystack,
 130                                         const gchar  *needle);
 131 GLIB_AVAILABLE_IN_ALL
 132 gchar *               g_strrstr_len    (const gchar  *haystack,
 133                                         gssize        haystack_len,
 134                                         const gchar  *needle);
 135
 136 GLIB_AVAILABLE_IN_ALL
 137 gboolean              g_str_has_suffix (const gchar  *str,
 138                                         const gchar  *suffix);
 139 GLIB_AVAILABLE_IN_ALL
 140 gboolean              g_str_has_prefix (const gchar  *str,
 141                                         const gchar  *prefix);
 142
 143 /* String to/from double conversion functions */
 144
 145 GLIB_AVAILABLE_IN_ALL
 146 gdouble               g_strtod         (const gchar  *nptr,
 147                                         gchar       **endptr);
 148 GLIB_AVAILABLE_IN_ALL
 149 gdouble               g_ascii_strtod   (const gchar  *nptr,
 150                                         gchar       **endptr);
 151 GLIB_AVAILABLE_IN_ALL
 152 guint64               g_ascii_strtoull (const gchar *nptr,
 153                                         gchar      **endptr,
 154                                         guint        base);
 155 GLIB_AVAILABLE_IN_ALL
 156 gint64                g_ascii_strtoll  (const gchar *nptr,
 157                                         gchar      **endptr,
 158                                         guint        base);
 159 /* 29 bytes should enough for all possible values that
 160  * g_ascii_dtostr can produce.
 161  * Then add 10 for good measure */
 162 #define G_ASCII_DTOSTR_BUF_SIZE (29 + 10)
 163 GLIB_AVAILABLE_IN_ALL
 164 gchar *               g_ascii_dtostr   (gchar        *buffer,
 165                                         gint          buf_len,
 166                                         gdouble       d);
 167 GLIB_AVAILABLE_IN_ALL
 168 gchar *               g_ascii_formatd  (gchar        *buffer,
 169                                         gint          buf_len,
 170                                         const gchar  *format,
 171                                         gdouble       d);
 172
 173 /* removes leading spaces */
 174 GLIB_AVAILABLE_IN_ALL
 175 gchar*                g_strchug        (gchar        *string);
 176 /* removes trailing spaces */
 177 GLIB_AVAILABLE_IN_ALL
 178 gchar*                g_strchomp       (gchar        *string);
 179 /* removes leading & trailing spaces */
 180 #define g_strstrip( string )    g_strchomp (g_strchug (string))
 181
 182 GLIB_AVAILABLE_IN_ALL
 183 gint                  g_ascii_strcasecmp  (const gchar *s1,
 184                                            const gchar *s2);
 185 GLIB_AVAILABLE_IN_ALL
 186 gint                  g_ascii_strncasecmp (const gchar *s1,
 187                                            const gchar *s2,
 188                                            gsize        n);
 189 GLIB_AVAILABLE_IN_ALL
 190 gchar*                g_ascii_strdown     (const gchar *str,
 191                                            gssize       len) G_GNUC_MALLOC;
 192 GLIB_AVAILABLE_IN_ALL
 193 gchar*                g_ascii_strup       (const gchar *str,
 194                                            gssize       len) G_GNUC_MALLOC;
 195
 196 GLIB_AVAILABLE_IN_2_40
 197 gboolean              g_str_is_ascii      (const gchar *str);
 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) G_GNUC_MALLOC;
 223 GLIB_AVAILABLE_IN_ALL
 224 gchar*                g_strndup        (const gchar *str,
 225                                         gsize        n) G_GNUC_MALLOC;
 226 GLIB_AVAILABLE_IN_ALL
 227 gchar*                g_strnfill       (gsize        length,
 228                                         gchar        fill_char) G_GNUC_MALLOC;
 229 GLIB_AVAILABLE_IN_ALL
 230 gchar*                g_strconcat      (const gchar *string1,
 231                                         ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
 232 GLIB_AVAILABLE_IN_ALL
 233 gchar*                g_strjoin        (const gchar  *separator,
 234                                         ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
 235
 236 /* Make a copy of a string interpreting C string -style escape
 237  * sequences. Inverse of g_strescape. The recognized sequences are \b
 238  * \f \n \r \t \\ \" and the octal format.
 239  */
 240 GLIB_AVAILABLE_IN_ALL
 241 gchar*                g_strcompress    (const gchar *source) G_GNUC_MALLOC;
 242
 243 /* Copy a string escaping nonprintable characters like in C strings.
 244  * Inverse of g_strcompress. The exceptions parameter, if non-NULL, points
 245  * to a string containing characters that are not to be escaped.
 246  *
 247  * Deprecated API: gchar* g_strescape (const gchar *source);
 248  * Luckily this function wasn't used much, using NULL as second parameter
 249  * provides mostly identical semantics.
 250  */
 251 GLIB_AVAILABLE_IN_ALL
 252 gchar*                g_strescape      (const gchar *source,
 253                                         const gchar *exceptions) G_GNUC_MALLOC;
 254
 255 GLIB_AVAILABLE_IN_ALL
 256 gpointer              g_memdup         (gconstpointer mem,
 257                                         guint          byte_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(2);
 258
 259 /* NULL terminated string arrays.
 260  * g_strsplit(), g_strsplit_set() split up string into max_tokens tokens
 261  * at delim and return a newly allocated string array.
 262  * g_strjoinv() concatenates all of str_array's strings, sliding in an
 263  * optional separator, the returned string is newly allocated.
 264  * g_strfreev() frees the array itself and all of its strings.
 265  * g_strdupv() copies a NULL-terminated array of strings
 266  * g_strv_length() returns the length of a NULL-terminated array of strings
 267  */
 268 typedef gchar** GStrv;
 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 GLIB_AVAILABLE_IN_2_40
 292 gchar *                 g_str_to_ascii                                  (const gchar   *str,
 293                                                                          const gchar   *from_locale);
 294
 295 GLIB_AVAILABLE_IN_2_40
 296 gchar **                g_str_tokenize_and_fold                         (const gchar   *string,
 297                                                                          const gchar   *translit_locale,
 298                                                                          gchar       ***ascii_alternates);
 299
 300 GLIB_AVAILABLE_IN_2_40
 301 gboolean                g_str_match_string                              (const gchar   *search_term,
 302                                                                          const gchar   *potential_hit,
 303                                                                          gboolean       accept_alternates);
 304
 305 GLIB_AVAILABLE_IN_2_44
 306 gboolean              g_strv_contains  (const gchar * const *strv,
 307                                         const gchar         *str);
 308
 309 G_END_DECLS
 310
 311 #endif /* __G_STRFUNCS_H__ */