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 #if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
  28 #error "Only <glib.h> can be included directly."
  29 #endif
  30
  31 #ifndef __G_STRFUNCS_H__
  32 #define __G_STRFUNCS_H__
  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 gchar                 g_ascii_tolower  (gchar        c) G_GNUC_CONST;
  91 gchar                 g_ascii_toupper  (gchar        c) G_GNUC_CONST;
  92
  93 gint                  g_ascii_digit_value  (gchar    c) G_GNUC_CONST;
  94 gint                  g_ascii_xdigit_value (gchar    c) G_GNUC_CONST;
  95
  96 /* String utility functions that modify a string argument or
  97  * return a constant string that must not be freed.
  98  */
  99 #define  G_STR_DELIMITERS       "_-|> <."
 100 gchar*                g_strdelimit     (gchar        *string,
 101                                         const gchar  *delimiters,
 102                                         gchar         new_delimiter);
 103 gchar*                g_strcanon       (gchar        *string,
 104                                         const gchar  *valid_chars,
 105                                         gchar         substitutor);
 106 G_CONST_RETURN gchar* g_strerror       (gint          errnum) G_GNUC_CONST;
 107 G_CONST_RETURN gchar* g_strsignal      (gint          signum) G_GNUC_CONST;
 108 gchar*                g_strreverse     (gchar        *string);
 109 gsize                 g_strlcpy        (gchar        *dest,
 110                                         const gchar  *src,
 111                                         gsize         dest_size);
 112 gsize                 g_strlcat        (gchar        *dest,
 113                                         const gchar  *src,
 114                                         gsize         dest_size);
 115 gchar *               g_strstr_len     (const gchar  *haystack,
 116                                         gssize        haystack_len,
 117                                         const gchar  *needle);
 118 gchar *               g_strrstr        (const gchar  *haystack,
 119                                         const gchar  *needle);
 120 gchar *               g_strrstr_len    (const gchar  *haystack,
 121                                         gssize        haystack_len,
 122                                         const gchar  *needle);
 123
 124 gboolean              g_str_has_suffix (const gchar  *str,
 125                                         const gchar  *suffix);
 126 gboolean              g_str_has_prefix (const gchar  *str,
 127                                         const gchar  *prefix);
 128
 129 /* String to/from double conversion functions */
 130
 131 gdouble               g_strtod         (const gchar  *nptr,
 132                                         gchar       **endptr);
 133 gdouble               g_ascii_strtod   (const gchar  *nptr,
 134                                         gchar       **endptr);
 135 guint64               g_ascii_strtoull (const gchar *nptr,
 136                                         gchar      **endptr,
 137                                         guint        base);
 138 gint64                g_ascii_strtoll  (const gchar *nptr,
 139                                         gchar      **endptr,
 140                                         guint        base);
 141 /* 29 bytes should enough for all possible values that
 142  * g_ascii_dtostr can produce.
 143  * Then add 10 for good measure */
 144 #define G_ASCII_DTOSTR_BUF_SIZE (29 + 10)
 145 gchar *               g_ascii_dtostr   (gchar        *buffer,
 146                                         gint          buf_len,
 147                                         gdouble       d);
 148 gchar *               g_ascii_formatd  (gchar        *buffer,
 149                                         gint          buf_len,
 150                                         const gchar  *format,
 151                                         gdouble       d);
 152
 153 /* removes leading spaces */
 154 gchar*                g_strchug        (gchar        *string);
 155 /* removes trailing spaces */
 156 gchar*                g_strchomp       (gchar        *string);
 157 /* removes leading & trailing spaces */
 158 #define g_strstrip( string )    g_strchomp (g_strchug (string))
 159
 160 gint                  g_ascii_strcasecmp  (const gchar *s1,
 161                                            const gchar *s2);
 162 gint                  g_ascii_strncasecmp (const gchar *s1,
 163                                            const gchar *s2,
 164                                            gsize        n);
 165 gchar*                g_ascii_strdown     (const gchar *str,
 166                                            gssize       len) G_GNUC_MALLOC;
 167 gchar*                g_ascii_strup       (const gchar *str,
 168                                            gssize       len) G_GNUC_MALLOC;
 169
 170 #ifndef G_DISABLE_DEPRECATED
 171
 172 /* The following four functions are deprecated and will be removed in
 173  * the next major release. They use the locale-specific tolower and
 174  * toupper, which is almost never the right thing.
 175  */
 176
 177 gint                  g_strcasecmp     (const gchar *s1,
 178                                         const gchar *s2);
 179 gint                  g_strncasecmp    (const gchar *s1,
 180                                         const gchar *s2,
 181                                         guint        n);
 182 gchar*                g_strdown        (gchar        *string);
 183 gchar*                g_strup          (gchar        *string);
 184
 185 #endif /* G_DISABLE_DEPRECATED */
 186
 187 /* String utility functions that return a newly allocated string which
 188  * ought to be freed with g_free from the caller at some point.
 189  */
 190 gchar*                g_strdup         (const gchar *str) G_GNUC_MALLOC;
 191 gchar*                g_strdup_printf  (const gchar *format,
 192                                         ...) G_GNUC_PRINTF (1, 2) G_GNUC_MALLOC;
 193 gchar*                g_strdup_vprintf (const gchar *format,
 194                                         va_list      args) G_GNUC_MALLOC;
 195 gchar*                g_strndup        (const gchar *str,
 196                                         gsize        n) G_GNUC_MALLOC;
 197 gchar*                g_strnfill       (gsize        length,
 198                                         gchar        fill_char) G_GNUC_MALLOC;
 199 gchar*                g_strconcat      (const gchar *string1,
 200                                         ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
 201 gchar*                g_strjoin        (const gchar  *separator,
 202                                         ...) G_GNUC_MALLOC G_GNUC_NULL_TERMINATED;
 203
 204 /* Make a copy of a string interpreting C string -style escape
 205  * sequences. Inverse of g_strescape. The recognized sequences are \b
 206  * \f \n \r \t \\ \" and the octal format.
 207  */
 208 gchar*                g_strcompress    (const gchar *source) G_GNUC_MALLOC;
 209
 210 /* Copy a string escaping nonprintable characters like in C strings.
 211  * Inverse of g_strcompress. The exceptions parameter, if non-NULL, points
 212  * to a string containing characters that are not to be escaped.
 213  *
 214  * Deprecated API: gchar* g_strescape (const gchar *source);
 215  * Luckily this function wasn't used much, using NULL as second parameter
 216  * provides mostly identical semantics.
 217  */
 218 gchar*                g_strescape      (const gchar *source,
 219                                         const gchar *exceptions) G_GNUC_MALLOC;
 220
 221 gpointer              g_memdup         (gconstpointer mem,
 222                                         guint          byte_size) G_GNUC_MALLOC G_GNUC_ALLOC_SIZE(2);
 223
 224 /* NULL terminated string arrays.
 225  * g_strsplit(), g_strsplit_set() split up string into max_tokens tokens
 226  * at delim and return a newly allocated string array.
 227  * g_strjoinv() concatenates all of str_array's strings, sliding in an
 228  * optional separator, the returned string is newly allocated.
 229  * g_strfreev() frees the array itself and all of its strings.
 230  * g_strdupv() copies a NULL-terminated array of strings
 231  * g_strv_length() returns the length of a NULL-terminated array of strings
 232  */
 233 gchar**               g_strsplit       (const gchar  *string,
 234                                         const gchar  *delimiter,
 235                                         gint          max_tokens) G_GNUC_MALLOC;
 236 gchar **              g_strsplit_set   (const gchar *string,
 237                                         const gchar *delimiters,
 238                                         gint         max_tokens) G_GNUC_MALLOC;
 239 gchar*                g_strjoinv       (const gchar  *separator,
 240                                         gchar       **str_array) G_GNUC_MALLOC;
 241 void                  g_strfreev       (gchar       **str_array);
 242 gchar**               g_strdupv        (gchar       **str_array) G_GNUC_MALLOC;
 243 guint                 g_strv_length    (gchar       **str_array);
 244
 245 gchar*                g_stpcpy         (gchar        *dest,
 246                                         const char   *src);
 247
 248 G_CONST_RETURN gchar *g_strip_context  (const gchar *msgid,
 249                                         const gchar *msgval) G_GNUC_FORMAT(1);
 250
 251 G_CONST_RETURN gchar *g_dgettext       (const gchar *domain,
 252                                         const gchar *msgid) G_GNUC_FORMAT(2);
 253
 254 G_CONST_RETURN gchar *g_dngettext      (const gchar *domain,
 255                                         const gchar *msgid,
 256                                         const gchar *msgid_plural,
 257                                         gulong       n) G_GNUC_FORMAT(3);
 258 G_CONST_RETURN gchar *g_dpgettext      (const gchar *domain,
 259                                         const gchar *msgctxtid,
 260                                         gsize        msgidoffset) G_GNUC_FORMAT(2);
 261 G_CONST_RETURN gchar *g_dpgettext2     (const gchar *domain,
 262                                         const gchar *context,
 263                                         const gchar *msgid) G_GNUC_FORMAT(3);
 264
 265 G_END_DECLS
 266
 267 #endif /* __G_STRFUNCS_H__ */