1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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.
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.
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.
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/.
33 #define _GNU_SOURCE /* For stpcpy */
41 #include <ctype.h> /* For tolower() */
42 #if !defined (HAVE_STRSIGNAL) || !defined(NO_SYS_SIGLIST_DECL)
48 #include "gprintfint.h"
56 /* do not include <unistd.h> in this place since it
57 * interferes with g_strsignal() on some OSes
60 static const guint16 ascii_table_data[256] = {
61 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
62 0x004, 0x104, 0x104, 0x004, 0x104, 0x104, 0x004, 0x004,
63 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
64 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
65 0x140, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
66 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
67 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459,
68 0x459, 0x459, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
69 0x0d0, 0x653, 0x653, 0x653, 0x653, 0x653, 0x653, 0x253,
70 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
71 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
72 0x253, 0x253, 0x253, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
73 0x0d0, 0x473, 0x473, 0x473, 0x473, 0x473, 0x473, 0x073,
74 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
75 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
76 0x073, 0x073, 0x073, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x004
77 /* the upper 128 are all zeroes */
80 const guint16 * const g_ascii_table = ascii_table_data;
84 * @str: the string to duplicate
86 * Duplicates a string. If @str is %NULL it returns %NULL.
87 * The returned string should be freed with g_free()
88 * when no longer needed.
90 * Returns: a newly-allocated copy of @str
93 g_strdup (const gchar *str)
100 length = strlen (str) + 1;
101 new_str = g_new (char, length);
102 memcpy (new_str, str, length);
111 g_memdup (gconstpointer mem,
118 new_mem = g_malloc (byte_size);
119 memcpy (new_mem, mem, byte_size);
129 * @str: the string to duplicate
130 * @n: the maximum number of bytes to copy from @str
132 * Duplicates the first @n bytes of a string, returning a newly-allocated
133 * buffer @n + 1 bytes long which will always be nul-terminated.
134 * If @str is less than @n bytes long the buffer is padded with nuls.
135 * If @str is %NULL it returns %NULL.
136 * The returned value should be freed when no longer needed.
139 * To copy a number of characters from a UTF-8 encoded string, use
140 * g_utf8_strncpy() instead.
143 * Returns: a newly-allocated buffer containing the first @n bytes
144 * of @str, nul-terminated
147 g_strndup (const gchar *str,
154 new_str = g_new (gchar, n + 1);
155 strncpy (new_str, str, n);
166 * @length: the length of the new string
167 * @fill_char: the byte to fill the string with
169 * Creates a new string @length bytes long filled with @fill_char.
170 * The returned string should be freed when no longer needed.
172 * Returns: a newly-allocated string filled the @fill_char
175 g_strnfill (gsize length,
180 str = g_new (gchar, length + 1);
181 memset (str, (guchar)fill_char, length);
189 * @dest: destination buffer.
190 * @src: source string.
192 * Copies a nul-terminated string into the dest buffer, include the
193 * trailing nul, and return a pointer to the trailing nul byte.
194 * This is useful for concatenating multiple strings together
195 * without having to repeatedly scan for the end.
197 * Return value: a pointer to trailing nul byte.
200 g_stpcpy (gchar *dest,
204 g_return_val_if_fail (dest != NULL, NULL);
205 g_return_val_if_fail (src != NULL, NULL);
206 return stpcpy (dest, src);
208 register gchar *d = dest;
209 register const gchar *s = src;
211 g_return_val_if_fail (dest != NULL, NULL);
212 g_return_val_if_fail (src != NULL, NULL);
215 while (*s++ != '\0');
223 * @format: a standard printf() format string, but notice
224 * <link linkend="string-precision">string precision pitfalls</link>
225 * @args: the list of parameters to insert into the format string
227 * Similar to the standard C vsprintf() function but safer, since it
228 * calculates the maximum space required and allocates memory to hold
229 * the result. The returned string should be freed with g_free() when
232 * See also g_vasprintf(), which offers the same functionality, but
233 * additionally returns the length of the allocated string.
235 * Returns: a newly-allocated string holding the result
238 g_strdup_vprintf (const gchar *format,
241 gchar *string = NULL;
243 g_vasprintf (&string, format, args);
250 * @format: a standard printf() format string, but notice
251 * <link linkend="string-precision">string precision pitfalls</link>
252 * @Varargs: the parameters to insert into the format string
254 * Similar to the standard C sprintf() function but safer, since it
255 * calculates the maximum space required and allocates memory to hold
256 * the result. The returned string should be freed with g_free() when no
259 * Returns: a newly-allocated string holding the result
262 g_strdup_printf (const gchar *format,
268 va_start (args, format);
269 buffer = g_strdup_vprintf (format, args);
277 * @string1: the first string to add, which must not be %NULL
278 * @Varargs: a %NULL-terminated list of strings to append to the string
280 * Concatenates all of the given strings into one long string.
281 * The returned string should be freed with g_free() when no longer needed.
284 * <warning><para>The variable argument list <emphasis>must</emphasis> end
285 * with %NULL. If you forget the %NULL, g_strconcat() will start appending
286 * random memory junk to your string.</para></warning>
288 * Returns: a newly-allocated string containing all the string arguments
291 g_strconcat (const gchar *string1, ...)
302 l = 1 + strlen (string1);
303 va_start (args, string1);
304 s = va_arg (args, gchar*);
308 s = va_arg (args, gchar*);
312 concat = g_new (gchar, l);
315 ptr = g_stpcpy (ptr, string1);
316 va_start (args, string1);
317 s = va_arg (args, gchar*);
320 ptr = g_stpcpy (ptr, s);
321 s = va_arg (args, gchar*);
330 * @nptr: the string to convert to a numeric value.
331 * @endptr: if non-%NULL, it returns the character after
332 * the last character used in the conversion.
334 * Converts a string to a #gdouble value.
335 * It calls the standard strtod() function to handle the conversion, but
336 * if the string is not completely converted it attempts the conversion
337 * again with g_ascii_strtod(), and returns the best match.
339 * This function should seldomly be used. The normal situation when reading
340 * numbers not for human consumption is to use g_ascii_strtod(). Only when
341 * you know that you must expect both locale formatted and C formatted numbers
342 * should you use this. Make sure that you don't pass strings such as comma
343 * separated lists of values, since the commas may be interpreted as a decimal
344 * point in some locales, causing unexpected results.
346 * Return value: the #gdouble value.
349 g_strtod (const gchar *nptr,
357 g_return_val_if_fail (nptr != NULL, 0);
362 val_1 = strtod (nptr, &fail_pos_1);
364 if (fail_pos_1 && fail_pos_1[0] != 0)
365 val_2 = g_ascii_strtod (nptr, &fail_pos_2);
367 if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
370 *endptr = fail_pos_1;
376 *endptr = fail_pos_2;
383 * @nptr: the string to convert to a numeric value.
384 * @endptr: if non-%NULL, it returns the character after
385 * the last character used in the conversion.
387 * Converts a string to a #gdouble value.
389 * This function behaves like the standard strtod() function
390 * does in the C locale. It does this without actually changing
391 * the current locale, since that would not be thread-safe.
392 * A limitation of the implementation is that this function
393 * will still accept localized versions of infinities and NANs.
395 * This function is typically used when reading configuration
396 * files or other non-user input that should be locale independent.
397 * To handle input from the user you should normally use the
398 * locale-sensitive system strtod() function.
400 * To convert from a #gdouble to a string in a locale-insensitive
401 * way, use g_ascii_dtostr().
403 * If the correct value would cause overflow, plus or minus %HUGE_VAL
404 * is returned (according to the sign of the value), and %ERANGE is
405 * stored in %errno. If the correct value would cause underflow,
406 * zero is returned and %ERANGE is stored in %errno.
408 * This function resets %errno before calling strtod() so that
409 * you can reliably detect overflow and underflow.
411 * Return value: the #gdouble value.
414 g_ascii_strtod (const gchar *nptr,
419 struct lconv *locale_data;
420 const char *decimal_point;
421 int decimal_point_len;
422 const char *p, *decimal_point_pos;
423 const char *end = NULL; /* Silence gcc */
426 g_return_val_if_fail (nptr != NULL, 0);
430 locale_data = localeconv ();
431 decimal_point = locale_data->decimal_point;
432 decimal_point_len = strlen (decimal_point);
434 g_assert (decimal_point_len != 0);
436 decimal_point_pos = NULL;
439 if (decimal_point[0] != '.' ||
440 decimal_point[1] != 0)
443 /* Skip leading space */
444 while (g_ascii_isspace (*p))
447 /* Skip leading optional sign */
448 if (*p == '+' || *p == '-')
452 (p[1] == 'x' || p[1] == 'X'))
455 /* HEX - find the (optional) decimal point */
457 while (g_ascii_isxdigit (*p))
461 decimal_point_pos = p++;
463 while (g_ascii_isxdigit (*p))
466 if (*p == 'p' || *p == 'P')
468 if (*p == '+' || *p == '-')
470 while (g_ascii_isdigit (*p))
475 else if (g_ascii_isdigit (*p) || *p == '.')
477 while (g_ascii_isdigit (*p))
481 decimal_point_pos = p++;
483 while (g_ascii_isdigit (*p))
486 if (*p == 'e' || *p == 'E')
488 if (*p == '+' || *p == '-')
490 while (g_ascii_isdigit (*p))
495 /* For the other cases, we need not convert the decimal point */
498 if (decimal_point_pos)
502 /* We need to convert the '.' to the locale specific decimal point */
503 copy = g_malloc (end - nptr + 1 + decimal_point_len);
506 memcpy (c, nptr, decimal_point_pos - nptr);
507 c += decimal_point_pos - nptr;
508 memcpy (c, decimal_point, decimal_point_len);
509 c += decimal_point_len;
510 memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
511 c += end - (decimal_point_pos + 1);
515 val = strtod (copy, &fail_pos);
516 strtod_errno = errno;
520 if (fail_pos - copy > decimal_point_pos - nptr)
521 fail_pos = (char *)nptr + (fail_pos - copy) - (decimal_point_len - 1);
523 fail_pos = (char *)nptr + (fail_pos - copy);
533 copy = g_malloc (end - (char *)nptr + 1);
534 memcpy (copy, nptr, end - nptr);
535 *(copy + (end - (char *)nptr)) = 0;
538 val = strtod (copy, &fail_pos);
539 strtod_errno = errno;
543 fail_pos = (char *)nptr + (fail_pos - copy);
551 val = strtod (nptr, &fail_pos);
552 strtod_errno = errno;
558 errno = strtod_errno;
566 * @buffer: A buffer to place the resulting string in
567 * @buf_len: The length of the buffer.
568 * @d: The #gdouble to convert
570 * Converts a #gdouble to a string, using the '.' as
573 * This functions generates enough precision that converting
574 * the string back using g_ascii_strtod() gives the same machine-number
575 * (on machines with IEEE compatible 64bit doubles). It is
576 * guaranteed that the size of the resulting string will never
577 * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes.
579 * Return value: The pointer to the buffer with the converted string.
582 g_ascii_dtostr (gchar *buffer,
586 return g_ascii_formatd (buffer, buf_len, "%.17g", d);
591 * @buffer: A buffer to place the resulting string in
592 * @buf_len: The length of the buffer.
593 * @format: The printf()-style format to use for the
594 * code to use for converting.
595 * @d: The #gdouble to convert
597 * Converts a #gdouble to a string, using the '.' as
598 * decimal point. To format the number you pass in
599 * a printf()-style format string. Allowed conversion
600 * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
602 * If you just want to want to serialize the value into a
603 * string, use g_ascii_dtostr().
605 * Return value: The pointer to the buffer with the converted string.
608 g_ascii_formatd (gchar *buffer,
613 struct lconv *locale_data;
614 const char *decimal_point;
615 int decimal_point_len;
620 g_return_val_if_fail (buffer != NULL, NULL);
621 g_return_val_if_fail (format[0] == '%', NULL);
622 g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL);
624 format_char = format[strlen (format) - 1];
626 g_return_val_if_fail (format_char == 'e' || format_char == 'E' ||
627 format_char == 'f' || format_char == 'F' ||
628 format_char == 'g' || format_char == 'G',
631 if (format[0] != '%')
634 if (strpbrk (format + 1, "'l%"))
637 if (!(format_char == 'e' || format_char == 'E' ||
638 format_char == 'f' || format_char == 'F' ||
639 format_char == 'g' || format_char == 'G'))
643 _g_snprintf (buffer, buf_len, format, d);
645 locale_data = localeconv ();
646 decimal_point = locale_data->decimal_point;
647 decimal_point_len = strlen (decimal_point);
649 g_assert (decimal_point_len != 0);
651 if (decimal_point[0] != '.' ||
652 decimal_point[1] != 0)
656 while (g_ascii_isspace (*p))
659 if (*p == '+' || *p == '-')
662 while (isdigit ((guchar)*p))
665 if (strncmp (p, decimal_point, decimal_point_len) == 0)
669 if (decimal_point_len > 1)
671 rest_len = strlen (p + (decimal_point_len-1));
672 memmove (p, p + (decimal_point_len-1), rest_len);
682 g_parse_long_long (const gchar *nptr,
683 const gchar **endptr,
687 /* this code is based on on the strtol(3) code from GNU libc released under
688 * the GNU Lesser General Public License.
690 * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
691 * Free Software Foundation, Inc.
693 #define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
694 (c) == '\r' || (c) == '\t' || (c) == '\v')
695 #define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z')
696 #define ISLOWER(c) ((c) >= 'a' && (c) <= 'z')
697 #define ISALPHA(c) (ISUPPER (c) || ISLOWER (c))
698 #define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c))
699 #define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c))
704 const gchar *s, *save;
707 g_return_val_if_fail (nptr != NULL, 0);
710 if (base == 1 || base > 36)
720 /* Skip white space. */
724 if (G_UNLIKELY (!*s))
727 /* Check for a sign. */
736 /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
739 if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X')
750 /* Save the pointer so we can check later if anything happened. */
752 cutoff = G_MAXUINT64 / base;
753 cutlim = G_MAXUINT64 % base;
760 if (c >= '0' && c <= '9')
762 else if (ISALPHA (c))
763 c = TOUPPER (c) - 'A' + 10;
768 /* Check for overflow. */
769 if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
778 /* Check if anything actually happened. */
782 /* Store in ENDPTR the address of one character
783 past the last character we converted. */
787 if (G_UNLIKELY (overflow))
796 /* We must handle a special case here: the base is 0 or 16 and the
797 first two characters are '0' and 'x', but the rest are no
798 hexadecimal digits. This is no error case. We return 0 and
799 ENDPTR points to the `x`. */
802 if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
806 /* There was no number to convert. */
814 * @nptr: the string to convert to a numeric value.
815 * @endptr: if non-%NULL, it returns the character after
816 * the last character used in the conversion.
817 * @base: to be used for the conversion, 2..36 or 0
819 * Converts a string to a #guint64 value.
820 * This function behaves like the standard strtoull() function
821 * does in the C locale. It does this without actually
822 * changing the current locale, since that would not be
825 * This function is typically used when reading configuration
826 * files or other non-user input that should be locale independent.
827 * To handle input from the user you should normally use the
828 * locale-sensitive system strtoull() function.
830 * If the correct value would cause overflow, %G_MAXUINT64
831 * is returned, and %ERANGE is stored in %errno. If the base is
832 * outside the valid range, zero is returned, and %EINVAL is stored
833 * in %errno. If the string conversion fails, zero is returned, and
834 * @endptr returns @nptr (if @endptr is non-%NULL).
836 * Return value: the #guint64 value or zero on error.
841 g_ascii_strtoull (const gchar *nptr,
848 result = g_parse_long_long (nptr, (const gchar **) endptr, base, &negative);
850 /* Return the result of the appropriate sign. */
851 return negative ? -result : result;
856 * @nptr: the string to convert to a numeric value.
857 * @endptr: if non-%NULL, it returns the character after
858 * the last character used in the conversion.
859 * @base: to be used for the conversion, 2..36 or 0
861 * Converts a string to a #gint64 value.
862 * This function behaves like the standard strtoll() function
863 * does in the C locale. It does this without actually
864 * changing the current locale, since that would not be
867 * This function is typically used when reading configuration
868 * files or other non-user input that should be locale independent.
869 * To handle input from the user you should normally use the
870 * locale-sensitive system strtoll() function.
872 * If the correct value would cause overflow, %G_MAXINT64 or %G_MININT64
873 * is returned, and %ERANGE is stored in %errno. If the base is
874 * outside the valid range, zero is returned, and %EINVAL is stored
875 * in %errno. If the string conversion fails, zero is returned, and
876 * @endptr returns @nptr (if @endptr is non-%NULL).
878 * Return value: the #gint64 value or zero on error.
883 g_ascii_strtoll (const gchar *nptr,
890 result = g_parse_long_long (nptr, (const gchar **) endptr, base, &negative);
892 if (negative && result > (guint64) G_MININT64)
897 else if (!negative && result > (guint64) G_MAXINT64)
903 return - (gint64) result;
905 return (gint64) result;
910 * @errnum: the system error number. See the standard C %errno
913 * Returns a string corresponding to the given error code, e.g.
914 * "no such process". You should use this function in preference to
915 * strerror(), because it returns a string in UTF-8 encoding, and since
916 * not all platforms support the strerror() function.
918 * Returns: a UTF-8 string describing the error code. If the error code
919 * is unknown, it returns "unknown error (<code>)". The string
920 * can only be used until the next call to g_strerror()
922 G_CONST_RETURN gchar*
923 g_strerror (gint errnum)
925 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
927 int saved_errno = errno;
930 const char *msg_locale;
932 msg_locale = strerror (errnum);
933 if (g_get_charset (NULL))
940 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
943 /* Stick in the quark table so that we can return a static result
945 GQuark msg_quark = g_quark_from_string (msg_utf8);
948 msg_utf8 = (gchar *) g_quark_to_string (msg_quark);
957 case E2BIG: return "argument list too long";
960 case EACCES: return "permission denied";
963 case EADDRINUSE: return "address already in use";
966 case EADDRNOTAVAIL: return "can't assign requested address";
969 case EADV: return "advertise error";
972 case EAFNOSUPPORT: return "address family not supported by protocol family";
975 case EAGAIN: return "try again";
978 case EALIGN: return "EALIGN";
981 case EALREADY: return "operation already in progress";
984 case EBADE: return "bad exchange descriptor";
987 case EBADF: return "bad file number";
990 case EBADFD: return "file descriptor in bad state";
993 case EBADMSG: return "not a data message";
996 case EBADR: return "bad request descriptor";
999 case EBADRPC: return "RPC structure is bad";
1002 case EBADRQC: return "bad request code";
1005 case EBADSLT: return "invalid slot";
1008 case EBFONT: return "bad font file format";
1011 case EBUSY: return "mount device busy";
1014 case ECHILD: return "no children";
1017 case ECHRNG: return "channel number out of range";
1020 case ECOMM: return "communication error on send";
1023 case ECONNABORTED: return "software caused connection abort";
1026 case ECONNREFUSED: return "connection refused";
1029 case ECONNRESET: return "connection reset by peer";
1031 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
1032 case EDEADLK: return "resource deadlock avoided";
1034 #if defined(EDEADLOCK) && (!defined(EDEADLK) || (EDEADLOCK != EDEADLK))
1035 case EDEADLOCK: return "resource deadlock avoided";
1038 case EDESTADDRREQ: return "destination address required";
1041 case EDIRTY: return "mounting a dirty fs w/o force";
1044 case EDOM: return "math argument out of range";
1047 case EDOTDOT: return "cross mount point";
1050 case EDQUOT: return "disk quota exceeded";
1053 case EDUPPKG: return "duplicate package name";
1056 case EEXIST: return "file already exists";
1059 case EFAULT: return "bad address in system call argument";
1062 case EFBIG: return "file too large";
1065 case EHOSTDOWN: return "host is down";
1068 case EHOSTUNREACH: return "host is unreachable";
1071 case EIDRM: return "identifier removed";
1074 case EINIT: return "initialization error";
1077 case EINPROGRESS: return "operation now in progress";
1080 case EINTR: return "interrupted system call";
1083 case EINVAL: return "invalid argument";
1086 case EIO: return "I/O error";
1089 case EISCONN: return "socket is already connected";
1092 case EISDIR: return "is a directory";
1095 case EISNAM: return "is a name file";
1098 case ELBIN: return "ELBIN";
1101 case EL2HLT: return "level 2 halted";
1104 case EL2NSYNC: return "level 2 not synchronized";
1107 case EL3HLT: return "level 3 halted";
1110 case EL3RST: return "level 3 reset";
1113 case ELIBACC: return "can not access a needed shared library";
1116 case ELIBBAD: return "accessing a corrupted shared library";
1119 case ELIBEXEC: return "can not exec a shared library directly";
1122 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
1125 case ELIBSCN: return ".lib section in a.out corrupted";
1128 case ELNRNG: return "link number out of range";
1131 case ELOOP: return "too many levels of symbolic links";
1134 case EMFILE: return "too many open files";
1137 case EMLINK: return "too many links";
1140 case EMSGSIZE: return "message too long";
1143 case EMULTIHOP: return "multihop attempted";
1146 case ENAMETOOLONG: return "file name too long";
1149 case ENAVAIL: return "not available";
1152 case ENET: return "ENET";
1155 case ENETDOWN: return "network is down";
1158 case ENETRESET: return "network dropped connection on reset";
1161 case ENETUNREACH: return "network is unreachable";
1164 case ENFILE: return "file table overflow";
1167 case ENOANO: return "anode table overflow";
1169 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
1170 case ENOBUFS: return "no buffer space available";
1173 case ENOCSI: return "no CSI structure available";
1176 case ENODATA: return "no data available";
1179 case ENODEV: return "no such device";
1182 case ENOENT: return "no such file or directory";
1185 case ENOEXEC: return "exec format error";
1188 case ENOLCK: return "no locks available";
1191 case ENOLINK: return "link has be severed";
1194 case ENOMEM: return "not enough memory";
1197 case ENOMSG: return "no message of desired type";
1200 case ENONET: return "machine is not on the network";
1203 case ENOPKG: return "package not installed";
1206 case ENOPROTOOPT: return "bad proocol option";
1209 case ENOSPC: return "no space left on device";
1212 case ENOSR: return "out of stream resources";
1215 case ENOSTR: return "not a stream device";
1218 case ENOSYM: return "unresolved symbol name";
1221 case ENOSYS: return "function not implemented";
1224 case ENOTBLK: return "block device required";
1227 case ENOTCONN: return "socket is not connected";
1230 case ENOTDIR: return "not a directory";
1233 case ENOTEMPTY: return "directory not empty";
1236 case ENOTNAM: return "not a name file";
1239 case ENOTSOCK: return "socket operation on non-socket";
1242 case ENOTTY: return "inappropriate device for ioctl";
1245 case ENOTUNIQ: return "name not unique on network";
1248 case ENXIO: return "no such device or address";
1251 case EOPNOTSUPP: return "operation not supported on socket";
1254 case EPERM: return "not owner";
1257 case EPFNOSUPPORT: return "protocol family not supported";
1260 case EPIPE: return "broken pipe";
1263 case EPROCLIM: return "too many processes";
1266 case EPROCUNAVAIL: return "bad procedure for program";
1268 #ifdef EPROGMISMATCH
1269 case EPROGMISMATCH: return "program version wrong";
1272 case EPROGUNAVAIL: return "RPC program not available";
1275 case EPROTO: return "protocol error";
1277 #ifdef EPROTONOSUPPORT
1278 case EPROTONOSUPPORT: return "protocol not suppored";
1281 case EPROTOTYPE: return "protocol wrong type for socket";
1284 case ERANGE: return "math result unrepresentable";
1286 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
1287 case EREFUSED: return "EREFUSED";
1290 case EREMCHG: return "remote address changed";
1293 case EREMDEV: return "remote device";
1296 case EREMOTE: return "pathname hit remote file system";
1299 case EREMOTEIO: return "remote i/o error";
1301 #ifdef EREMOTERELEASE
1302 case EREMOTERELEASE: return "EREMOTERELEASE";
1305 case EROFS: return "read-only file system";
1308 case ERPCMISMATCH: return "RPC version is wrong";
1311 case ERREMOTE: return "object is remote";
1314 case ESHUTDOWN: return "can't send afer socket shutdown";
1316 #ifdef ESOCKTNOSUPPORT
1317 case ESOCKTNOSUPPORT: return "socket type not supported";
1320 case ESPIPE: return "invalid seek";
1323 case ESRCH: return "no such process";
1326 case ESRMNT: return "srmount error";
1329 case ESTALE: return "stale remote file handle";
1332 case ESUCCESS: return "Error 0";
1335 case ETIME: return "timer expired";
1338 case ETIMEDOUT: return "connection timed out";
1341 case ETOOMANYREFS: return "too many references: can't splice";
1344 case ETXTBSY: return "text file or pseudo-device busy";
1347 case EUCLEAN: return "structure needs cleaning";
1350 case EUNATCH: return "protocol driver not attached";
1353 case EUSERS: return "too many users";
1356 case EVERSION: return "version mismatch";
1358 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
1359 case EWOULDBLOCK: return "operation would block";
1362 case EXDEV: return "cross-domain link";
1365 case EXFULL: return "message tables full";
1368 #else /* NO_SYS_ERRLIST */
1369 extern int sys_nerr;
1370 extern char *sys_errlist[];
1372 if ((errnum > 0) && (errnum <= sys_nerr))
1373 return sys_errlist [errnum];
1374 #endif /* NO_SYS_ERRLIST */
1376 msg = g_static_private_get (&msg_private);
1379 msg = g_new (gchar, 64);
1380 g_static_private_set (&msg_private, msg, g_free);
1383 _g_sprintf (msg, "unknown error (%d)", errnum);
1385 errno = saved_errno;
1391 * @signum: the signal number. See the <literal>signal</literal>
1394 * Returns a string describing the given signal, e.g. "Segmentation fault".
1395 * You should use this function in preference to strsignal(), because it
1396 * returns a string in UTF-8 encoding, and since not all platforms support
1397 * the strsignal() function.
1399 * Returns: a UTF-8 string describing the signal. If the signal is unknown,
1400 * it returns "unknown signal (<signum>)". The string can only be
1401 * used until the next call to g_strsignal()
1403 G_CONST_RETURN gchar*
1404 g_strsignal (gint signum)
1406 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
1409 #ifdef HAVE_STRSIGNAL
1410 const char *msg_locale;
1412 #if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN)
1413 extern const char *strsignal(int);
1415 /* this is declared differently (const) in string.h on BeOS */
1416 extern char *strsignal (int sig);
1417 #endif /* !G_OS_BEOS && !G_WITH_CYGWIN */
1418 msg_locale = strsignal (signum);
1419 if (g_get_charset (NULL))
1423 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
1426 /* Stick in the quark table so that we can return a static result
1428 GQuark msg_quark = g_quark_from_string (msg_utf8);
1431 return g_quark_to_string (msg_quark);
1434 #elif NO_SYS_SIGLIST
1438 case SIGHUP: return "Hangup";
1441 case SIGINT: return "Interrupt";
1444 case SIGQUIT: return "Quit";
1447 case SIGILL: return "Illegal instruction";
1450 case SIGTRAP: return "Trace/breakpoint trap";
1453 case SIGABRT: return "IOT trap/Abort";
1456 case SIGBUS: return "Bus error";
1459 case SIGFPE: return "Floating point exception";
1462 case SIGKILL: return "Killed";
1465 case SIGUSR1: return "User defined signal 1";
1468 case SIGSEGV: return "Segmentation fault";
1471 case SIGUSR2: return "User defined signal 2";
1474 case SIGPIPE: return "Broken pipe";
1477 case SIGALRM: return "Alarm clock";
1480 case SIGTERM: return "Terminated";
1483 case SIGSTKFLT: return "Stack fault";
1486 case SIGCHLD: return "Child exited";
1489 case SIGCONT: return "Continued";
1492 case SIGSTOP: return "Stopped (signal)";
1495 case SIGTSTP: return "Stopped";
1498 case SIGTTIN: return "Stopped (tty input)";
1501 case SIGTTOU: return "Stopped (tty output)";
1504 case SIGURG: return "Urgent condition";
1507 case SIGXCPU: return "CPU time limit exceeded";
1510 case SIGXFSZ: return "File size limit exceeded";
1513 case SIGVTALRM: return "Virtual time alarm";
1516 case SIGPROF: return "Profile signal";
1519 case SIGWINCH: return "Window size changed";
1522 case SIGIO: return "Possible I/O";
1525 case SIGPWR: return "Power failure";
1528 case SIGUNUSED: return "Unused signal";
1531 #else /* NO_SYS_SIGLIST */
1533 #ifdef NO_SYS_SIGLIST_DECL
1534 extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
1537 return (char*) /* this function should return const --josh */ sys_siglist [signum];
1538 #endif /* NO_SYS_SIGLIST */
1540 msg = g_static_private_get (&msg_private);
1543 msg = g_new (gchar, 64);
1544 g_static_private_set (&msg_private, msg, g_free);
1547 _g_sprintf (msg, "unknown signal (%d)", signum);
1552 /* Functions g_strlcpy and g_strlcat were originally developed by
1553 * Todd C. Miller <Todd.Miller@courtesan.com> to simplify writing secure code.
1554 * See ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/strlcpy.3
1555 * for more information.
1559 /* Use the native ones, if available; they might be implemented in assembly */
1561 g_strlcpy (gchar *dest,
1565 g_return_val_if_fail (dest != NULL, 0);
1566 g_return_val_if_fail (src != NULL, 0);
1568 return strlcpy (dest, src, dest_size);
1572 g_strlcat (gchar *dest,
1576 g_return_val_if_fail (dest != NULL, 0);
1577 g_return_val_if_fail (src != NULL, 0);
1579 return strlcat (dest, src, dest_size);
1582 #else /* ! HAVE_STRLCPY */
1585 * @dest: destination buffer
1586 * @src: source buffer
1587 * @dest_size: length of @dest in bytes
1589 * Portability wrapper that calls strlcpy() on systems which have it,
1590 * and emulates strlcpy() otherwise. Copies @src to @dest; @dest is
1591 * guaranteed to be nul-terminated; @src must be nul-terminated;
1592 * @dest_size is the buffer size, not the number of chars to copy.
1594 * At most dest_size - 1 characters will be copied. Always nul-terminates
1595 * (unless dest_size == 0). This function does <emphasis>not</emphasis>
1596 * allocate memory. Unlike strncpy(), this function doesn't pad dest (so
1597 * it's often faster). It returns the size of the attempted result,
1598 * strlen (src), so if @retval >= @dest_size, truncation occurred.
1600 * <note><para>Caveat: strlcpy() is supposedly more secure than
1601 * strcpy() or strncpy(), but if you really want to avoid screwups,
1602 * g_strdup() is an even better idea.</para></note>
1604 * Returns: length of @src
1607 g_strlcpy (gchar *dest,
1611 register gchar *d = dest;
1612 register const gchar *s = src;
1613 register gsize n = dest_size;
1615 g_return_val_if_fail (dest != NULL, 0);
1616 g_return_val_if_fail (src != NULL, 0);
1618 /* Copy as many bytes as will fit */
1619 if (n != 0 && --n != 0)
1622 register gchar c = *s++;
1630 /* If not enough room in dest, add NUL and traverse rest of src */
1639 return s - src - 1; /* count does not include NUL */
1644 * @dest: destination buffer, already containing one nul-terminated string
1645 * @src: source buffer
1646 * @dest_size: length of @dest buffer in bytes (not length of existing string
1649 * Portability wrapper that calls strlcat() on systems which have it,
1650 * and emulates it otherwise. Appends nul-terminated @src string to @dest,
1651 * guaranteeing nul-termination for @dest. The total size of @dest won't
1652 * exceed @dest_size.
1654 * At most dest_size - 1 characters will be copied.
1655 * Unlike strncat, dest_size is the full size of dest, not the space left over.
1656 * This function does NOT allocate memory.
1657 * This always NUL terminates (unless siz == 0 or there were no NUL characters
1658 * in the dest_size characters of dest to start with).
1660 * <note><para>Caveat: this is supposedly a more secure alternative to
1661 * strcat() or strncat(), but for real security g_strconcat() is harder
1662 * to mess up.</para></note>
1664 * Returns size of attempted result, which is
1665 * MIN (dest_size, strlen (original dest)) + strlen (src),
1666 * so if retval >= dest_size, truncation occurred.
1669 g_strlcat (gchar *dest,
1673 register gchar *d = dest;
1674 register const gchar *s = src;
1675 register gsize bytes_left = dest_size;
1676 gsize dlength; /* Logically, MIN (strlen (d), dest_size) */
1678 g_return_val_if_fail (dest != NULL, 0);
1679 g_return_val_if_fail (src != NULL, 0);
1681 /* Find the end of dst and adjust bytes left but don't go past end */
1682 while (*d != 0 && bytes_left-- != 0)
1685 bytes_left = dest_size - dlength;
1687 if (bytes_left == 0)
1688 return dlength + strlen (s);
1692 if (bytes_left != 1)
1701 return dlength + (s - src); /* count does not include NUL */
1703 #endif /* ! HAVE_STRLCPY */
1708 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1710 * Converts all upper case ASCII letters to lower case ASCII letters.
1712 * Return value: a newly-allocated string, with all the upper case
1713 * characters in @str converted to lower case, with
1714 * semantics that exactly match g_ascii_tolower(). (Note
1715 * that this is unlike the old g_strdown(), which modified
1716 * the string in place.)
1719 g_ascii_strdown (const gchar *str,
1724 g_return_val_if_fail (str != NULL, NULL);
1729 result = g_strndup (str, len);
1730 for (s = result; *s; s++)
1731 *s = g_ascii_tolower (*s);
1739 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1741 * Converts all lower case ASCII letters to upper case ASCII letters.
1743 * Return value: a newly allocated string, with all the lower case
1744 * characters in @str converted to upper case, with
1745 * semantics that exactly match g_ascii_toupper(). (Note
1746 * that this is unlike the old g_strup(), which modified
1747 * the string in place.)
1750 g_ascii_strup (const gchar *str,
1755 g_return_val_if_fail (str != NULL, NULL);
1760 result = g_strndup (str, len);
1761 for (s = result; *s; s++)
1762 *s = g_ascii_toupper (*s);
1769 * @string: the string to convert.
1771 * Converts a string to lower case.
1773 * Return value: the string
1775 * Deprecated:2.2: This function is totally broken for the reasons discussed
1776 * in the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
1780 g_strdown (gchar *string)
1784 g_return_val_if_fail (string != NULL, NULL);
1786 s = (guchar *) string;
1795 return (gchar *) string;
1800 * @string: the string to convert.
1802 * Converts a string to upper case.
1804 * Return value: the string
1806 * Deprecated:2.2: This function is totally broken for the reasons discussed
1807 * in the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
1810 g_strup (gchar *string)
1814 g_return_val_if_fail (string != NULL, NULL);
1816 s = (guchar *) string;
1825 return (gchar *) string;
1830 * @string: the string to reverse
1832 * Reverses all of the bytes in a string. For example,
1833 * <literal>g_strreverse ("abcdef")</literal> will result
1836 * Note that g_strreverse() doesn't work on UTF-8 strings
1837 * containing multibyte characters. For that purpose, use
1838 * g_utf8_strreverse().
1840 * Returns: the same pointer passed in as @string
1843 g_strreverse (gchar *string)
1845 g_return_val_if_fail (string != NULL, NULL);
1849 register gchar *h, *t;
1852 t = string + strlen (string) - 1;
1871 * @c: any character.
1873 * Convert a character to ASCII lower case.
1875 * Unlike the standard C library tolower() function, this only
1876 * recognizes standard ASCII letters and ignores the locale, returning
1877 * all non-ASCII characters unchanged, even if they are lower case
1878 * letters in a particular character set. Also unlike the standard
1879 * library function, this takes and returns a char, not an int, so
1880 * don't call it on %EOF but no need to worry about casting to #guchar
1881 * before passing a possibly non-ASCII character in.
1883 * Return value: the result of converting @c to lower case.
1884 * If @c is not an ASCII upper case letter,
1885 * @c is returned unchanged.
1888 g_ascii_tolower (gchar c)
1890 return g_ascii_isupper (c) ? c - 'A' + 'a' : c;
1895 * @c: any character.
1897 * Convert a character to ASCII upper case.
1899 * Unlike the standard C library toupper() function, this only
1900 * recognizes standard ASCII letters and ignores the locale, returning
1901 * all non-ASCII characters unchanged, even if they are upper case
1902 * letters in a particular character set. Also unlike the standard
1903 * library function, this takes and returns a char, not an int, so
1904 * don't call it on %EOF but no need to worry about casting to #guchar
1905 * before passing a possibly non-ASCII character in.
1907 * Return value: the result of converting @c to upper case.
1908 * If @c is not an ASCII lower case letter,
1909 * @c is returned unchanged.
1912 g_ascii_toupper (gchar c)
1914 return g_ascii_islower (c) ? c - 'a' + 'A' : c;
1918 * g_ascii_digit_value:
1919 * @c: an ASCII character.
1921 * Determines the numeric value of a character as a decimal
1922 * digit. Differs from g_unichar_digit_value() because it takes
1923 * a char, so there's no worry about sign extension if characters
1926 * Return value: If @c is a decimal digit (according to
1927 * g_ascii_isdigit()), its numeric value. Otherwise, -1.
1930 g_ascii_digit_value (gchar c)
1932 if (g_ascii_isdigit (c))
1938 * g_ascii_xdigit_value:
1939 * @c: an ASCII character.
1941 * Determines the numeric value of a character as a hexidecimal
1942 * digit. Differs from g_unichar_xdigit_value() because it takes
1943 * a char, so there's no worry about sign extension if characters
1946 * Return value: If @c is a hex digit (according to
1947 * g_ascii_isxdigit()), its numeric value. Otherwise, -1.
1950 g_ascii_xdigit_value (gchar c)
1952 if (c >= 'A' && c <= 'F')
1953 return c - 'A' + 10;
1954 if (c >= 'a' && c <= 'f')
1955 return c - 'a' + 10;
1956 return g_ascii_digit_value (c);
1960 * g_ascii_strcasecmp:
1961 * @s1: string to compare with @s2.
1962 * @s2: string to compare with @s1.
1964 * Compare two strings, ignoring the case of ASCII characters.
1966 * Unlike the BSD strcasecmp() function, this only recognizes standard
1967 * ASCII letters and ignores the locale, treating all non-ASCII
1968 * bytes as if they are not letters.
1970 * This function should be used only on strings that are known to be
1971 * in encodings where the bytes corresponding to ASCII letters always
1972 * represent themselves. This includes UTF-8 and the ISO-8859-*
1973 * charsets, but not for instance double-byte encodings like the
1974 * Windows Codepage 932, where the trailing bytes of double-byte
1975 * characters include all ASCII letters. If you compare two CP932
1976 * strings using this function, you will get false matches.
1978 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1979 * or a positive value if @s1 > @s2.
1982 g_ascii_strcasecmp (const gchar *s1,
1987 g_return_val_if_fail (s1 != NULL, 0);
1988 g_return_val_if_fail (s2 != NULL, 0);
1992 c1 = (gint)(guchar) TOLOWER (*s1);
1993 c2 = (gint)(guchar) TOLOWER (*s2);
1999 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
2003 * g_ascii_strncasecmp:
2004 * @s1: string to compare with @s2.
2005 * @s2: string to compare with @s1.
2006 * @n: number of characters to compare.
2008 * Compare @s1 and @s2, ignoring the case of ASCII characters and any
2009 * characters after the first @n in each string.
2011 * Unlike the BSD strcasecmp() function, this only recognizes standard
2012 * ASCII letters and ignores the locale, treating all non-ASCII
2013 * characters as if they are not letters.
2015 * The same warning as in g_ascii_strcasecmp() applies: Use this
2016 * function only on strings known to be in encodings where bytes
2017 * corresponding to ASCII letters always represent themselves.
2019 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2020 * or a positive value if @s1 > @s2.
2023 g_ascii_strncasecmp (const gchar *s1,
2029 g_return_val_if_fail (s1 != NULL, 0);
2030 g_return_val_if_fail (s2 != NULL, 0);
2032 while (n && *s1 && *s2)
2035 c1 = (gint)(guchar) TOLOWER (*s1);
2036 c2 = (gint)(guchar) TOLOWER (*s2);
2043 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
2051 * @s2: a string to compare with @s1.
2053 * A case-insensitive string comparison, corresponding to the standard
2054 * strcasecmp() function on platforms which support it.
2056 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2057 * or a positive value if @s1 > @s2.
2059 * Deprecated:2.2: See g_strncasecmp() for a discussion of why this function
2060 * is deprecated and how to replace it.
2063 g_strcasecmp (const gchar *s1,
2066 #ifdef HAVE_STRCASECMP
2067 g_return_val_if_fail (s1 != NULL, 0);
2068 g_return_val_if_fail (s2 != NULL, 0);
2070 return strcasecmp (s1, s2);
2074 g_return_val_if_fail (s1 != NULL, 0);
2075 g_return_val_if_fail (s2 != NULL, 0);
2079 /* According to A. Cox, some platforms have islower's that
2080 * don't work right on non-uppercase
2082 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
2083 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
2089 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
2096 * @s2: a string to compare with @s1.
2097 * @n: the maximum number of characters to compare.
2099 * A case-insensitive string comparison, corresponding to the standard
2100 * strncasecmp() function on platforms which support it.
2101 * It is similar to g_strcasecmp() except it only compares the first @n
2102 * characters of the strings.
2104 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2105 * or a positive value if @s1 > @s2.
2107 * Deprecated:2.2: The problem with g_strncasecmp() is that it does the
2108 * comparison by calling toupper()/tolower(). These functions are
2109 * locale-specific and operate on single bytes. However, it is impossible
2110 * to handle things correctly from an I18N standpoint by operating on
2111 * bytes, since characters may be multibyte. Thus g_strncasecmp() is
2112 * broken if your string is guaranteed to be ASCII, since it's
2113 * locale-sensitive, and it's broken if your string is localized, since
2114 * it doesn't work on many encodings at all, including UTF-8, EUC-JP,
2117 * There are therefore two replacement functions: g_ascii_strncasecmp(),
2118 * which only works on ASCII and is not locale-sensitive, and
2119 * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8.
2122 g_strncasecmp (const gchar *s1,
2126 #ifdef HAVE_STRNCASECMP
2127 return strncasecmp (s1, s2, n);
2131 g_return_val_if_fail (s1 != NULL, 0);
2132 g_return_val_if_fail (s2 != NULL, 0);
2134 while (n && *s1 && *s2)
2137 /* According to A. Cox, some platforms have islower's that
2138 * don't work right on non-uppercase
2140 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
2141 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
2148 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
2155 g_strdelimit (gchar *string,
2156 const gchar *delimiters,
2161 g_return_val_if_fail (string != NULL, NULL);
2164 delimiters = G_STR_DELIMITERS;
2166 for (c = string; *c; c++)
2168 if (strchr (delimiters, *c))
2176 g_strcanon (gchar *string,
2177 const gchar *valid_chars,
2182 g_return_val_if_fail (string != NULL, NULL);
2183 g_return_val_if_fail (valid_chars != NULL, NULL);
2185 for (c = string; *c; c++)
2187 if (!strchr (valid_chars, *c))
2195 g_strcompress (const gchar *source)
2197 const gchar *p = source, *octal;
2198 gchar *dest = g_malloc (strlen (source) + 1);
2209 g_warning ("g_strcompress: trailing \\");
2211 case '0': case '1': case '2': case '3': case '4':
2212 case '5': case '6': case '7':
2215 while ((p < octal + 3) && (*p >= '0') && (*p <= '7'))
2217 *q = (*q * 8) + (*p - '0');
2238 default: /* Also handles \" and \\ */
2254 g_strescape (const gchar *source,
2255 const gchar *exceptions)
2262 g_return_val_if_fail (source != NULL, NULL);
2264 p = (guchar *) source;
2265 /* Each source byte needs maximally four destination chars (\777) */
2266 q = dest = g_malloc (strlen (source) * 4 + 1);
2268 memset (excmap, 0, 256);
2271 guchar *e = (guchar *) exceptions;
2317 if ((*p < ' ') || (*p >= 0177))
2320 *q++ = '0' + (((*p) >> 6) & 07);
2321 *q++ = '0' + (((*p) >> 3) & 07);
2322 *q++ = '0' + ((*p) & 07);
2336 g_strchug (gchar *string)
2340 g_return_val_if_fail (string != NULL, NULL);
2342 for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
2345 g_memmove (string, start, strlen ((gchar *) start) + 1);
2351 g_strchomp (gchar *string)
2355 g_return_val_if_fail (string != NULL, NULL);
2357 len = strlen (string);
2360 if (g_ascii_isspace ((guchar) string[len]))
2371 * @string: a string to split.
2372 * @delimiter: a string which specifies the places at which to split the string.
2373 * The delimiter is not included in any of the resulting strings, unless
2374 * @max_tokens is reached.
2375 * @max_tokens: the maximum number of pieces to split @string into. If this is
2376 * less than 1, the string is split completely.
2378 * Splits a string into a maximum of @max_tokens pieces, using the given
2379 * @delimiter. If @max_tokens is reached, the remainder of @string is appended
2380 * to the last token.
2382 * As a special case, the result of splitting the empty string "" is an empty
2383 * vector, not a vector containing a single string. The reason for this
2384 * special case is that being able to represent a empty vector is typically
2385 * more useful than consistent handling of empty elements. If you do need
2386 * to represent empty elements, you'll need to check for the empty string
2387 * before calling g_strsplit().
2389 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2390 * g_strfreev() to free it.
2393 g_strsplit (const gchar *string,
2394 const gchar *delimiter,
2397 GSList *string_list = NULL, *slist;
2398 gchar **str_array, *s;
2400 const gchar *remainder;
2402 g_return_val_if_fail (string != NULL, NULL);
2403 g_return_val_if_fail (delimiter != NULL, NULL);
2404 g_return_val_if_fail (delimiter[0] != '\0', NULL);
2407 max_tokens = G_MAXINT;
2410 s = strstr (remainder, delimiter);
2413 gsize delimiter_len = strlen (delimiter);
2415 while (--max_tokens && s)
2419 len = s - remainder;
2420 string_list = g_slist_prepend (string_list,
2421 g_strndup (remainder, len));
2423 remainder = s + delimiter_len;
2424 s = strstr (remainder, delimiter);
2430 string_list = g_slist_prepend (string_list, g_strdup (remainder));
2433 str_array = g_new (gchar*, n + 1);
2435 str_array[n--] = NULL;
2436 for (slist = string_list; slist; slist = slist->next)
2437 str_array[n--] = slist->data;
2439 g_slist_free (string_list);
2446 * @string: The string to be tokenized
2447 * @delimiters: A nul-terminated string containing bytes that are used
2448 * to split the string.
2449 * @max_tokens: The maximum number of tokens to split @string into.
2450 * If this is less than 1, the string is split completely
2452 * Splits @string into a number of tokens not containing any of the characters
2453 * in @delimiter. A token is the (possibly empty) longest string that does not
2454 * contain any of the characters in @delimiters. If @max_tokens is reached, the
2455 * remainder is appended to the last token.
2457 * For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a
2458 * %NULL-terminated vector containing the three strings "abc", "def",
2461 * The result if g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated
2462 * vector containing the four strings "", "def", "ghi", and "".
2464 * As a special case, the result of splitting the empty string "" is an empty
2465 * vector, not a vector containing a single string. The reason for this
2466 * special case is that being able to represent a empty vector is typically
2467 * more useful than consistent handling of empty elements. If you do need
2468 * to represent empty elements, you'll need to check for the empty string
2469 * before calling g_strsplit_set().
2471 * Note that this function works on bytes not characters, so it can't be used
2472 * to delimit UTF-8 strings for anything but ASCII characters.
2474 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2475 * g_strfreev() to free it.
2480 g_strsplit_set (const gchar *string,
2481 const gchar *delimiters,
2484 gboolean delim_table[256];
2485 GSList *tokens, *list;
2488 const gchar *current;
2492 g_return_val_if_fail (string != NULL, NULL);
2493 g_return_val_if_fail (delimiters != NULL, NULL);
2496 max_tokens = G_MAXINT;
2498 if (*string == '\0')
2500 result = g_new (char *, 1);
2505 memset (delim_table, FALSE, sizeof (delim_table));
2506 for (s = delimiters; *s != '\0'; ++s)
2507 delim_table[*(guchar *)s] = TRUE;
2512 s = current = string;
2515 if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens)
2517 token = g_strndup (current, s - current);
2518 tokens = g_slist_prepend (tokens, token);
2527 token = g_strndup (current, s - current);
2528 tokens = g_slist_prepend (tokens, token);
2531 result = g_new (gchar *, n_tokens + 1);
2533 result[n_tokens] = NULL;
2534 for (list = tokens; list != NULL; list = list->next)
2535 result[--n_tokens] = list->data;
2537 g_slist_free (tokens);
2544 * @str_array: a %NULL-terminated array of strings to free.
2546 * Frees a %NULL-terminated array of strings, and the array itself.
2547 * If called on a %NULL value, g_strfreev() simply returns.
2550 g_strfreev (gchar **str_array)
2556 for (i = 0; str_array[i] != NULL; i++)
2557 g_free (str_array[i]);
2565 * @str_array: %NULL-terminated array of strings.
2567 * Copies %NULL-terminated array of strings. The copy is a deep copy;
2568 * the new array should be freed by first freeing each string, then
2569 * the array itself. g_strfreev() does this for you. If called
2570 * on a %NULL value, g_strdupv() simply returns %NULL.
2572 * Return value: a new %NULL-terminated array of strings.
2575 g_strdupv (gchar **str_array)
2583 while (str_array[i])
2586 retval = g_new (gchar*, i + 1);
2589 while (str_array[i])
2591 retval[i] = g_strdup (str_array[i]);
2604 * @separator: a string to insert between each of the strings, or %NULL
2605 * @str_array: a %NULL-terminated array of strings to join
2607 * Joins a number of strings together to form one long string, with the
2608 * optional @separator inserted between each of them. The returned string
2609 * should be freed with g_free().
2611 * Returns: a newly-allocated string containing all of the strings joined
2612 * together, with @separator between them
2615 g_strjoinv (const gchar *separator,
2621 g_return_val_if_fail (str_array != NULL, NULL);
2623 if (separator == NULL)
2630 gsize separator_len;
2632 separator_len = strlen (separator);
2633 /* First part, getting length */
2634 len = 1 + strlen (str_array[0]);
2635 for (i = 1; str_array[i] != NULL; i++)
2636 len += strlen (str_array[i]);
2637 len += separator_len * (i - 1);
2639 /* Second part, building string */
2640 string = g_new (gchar, len);
2641 ptr = g_stpcpy (string, *str_array);
2642 for (i = 1; str_array[i] != NULL; i++)
2644 ptr = g_stpcpy (ptr, separator);
2645 ptr = g_stpcpy (ptr, str_array[i]);
2649 string = g_strdup ("");
2656 * @separator: a string to insert between each of the strings, or %NULL
2657 * @Varargs: a %NULL-terminated list of strings to join
2659 * Joins a number of strings together to form one long string, with the
2660 * optional @separator inserted between each of them. The returned string
2661 * should be freed with g_free().
2663 * Returns: a newly-allocated string containing all of the strings joined
2664 * together, with @separator between them
2667 g_strjoin (const gchar *separator,
2673 gsize separator_len;
2676 if (separator == NULL)
2679 separator_len = strlen (separator);
2681 va_start (args, separator);
2683 s = va_arg (args, gchar*);
2687 /* First part, getting length */
2688 len = 1 + strlen (s);
2690 s = va_arg (args, gchar*);
2693 len += separator_len + strlen (s);
2694 s = va_arg (args, gchar*);
2698 /* Second part, building string */
2699 string = g_new (gchar, len);
2701 va_start (args, separator);
2703 s = va_arg (args, gchar*);
2704 ptr = g_stpcpy (string, s);
2706 s = va_arg (args, gchar*);
2709 ptr = g_stpcpy (ptr, separator);
2710 ptr = g_stpcpy (ptr, s);
2711 s = va_arg (args, gchar*);
2715 string = g_strdup ("");
2725 * @haystack: a string.
2726 * @haystack_len: the maximum length of @haystack. Note that -1 is
2727 * a valid length, if @haystack is nul-terminated, meaning it will
2728 * search through the whole string.
2729 * @needle: the string to search for.
2731 * Searches the string @haystack for the first occurrence
2732 * of the string @needle, limiting the length of the search
2735 * Return value: a pointer to the found occurrence, or
2736 * %NULL if not found.
2739 g_strstr_len (const gchar *haystack,
2740 gssize haystack_len,
2741 const gchar *needle)
2743 g_return_val_if_fail (haystack != NULL, NULL);
2744 g_return_val_if_fail (needle != NULL, NULL);
2746 if (haystack_len < 0)
2747 return strstr (haystack, needle);
2750 const gchar *p = haystack;
2751 gsize needle_len = strlen (needle);
2755 if (needle_len == 0)
2756 return (gchar *)haystack;
2758 if (haystack_len < needle_len)
2761 end = haystack + haystack_len - needle_len;
2763 while (p <= end && *p)
2765 for (i = 0; i < needle_len; i++)
2766 if (p[i] != needle[i])
2781 * @haystack: a nul-terminated string.
2782 * @needle: the nul-terminated string to search for.
2784 * Searches the string @haystack for the last occurrence
2785 * of the string @needle.
2787 * Return value: a pointer to the found occurrence, or
2788 * %NULL if not found.
2791 g_strrstr (const gchar *haystack,
2792 const gchar *needle)
2799 g_return_val_if_fail (haystack != NULL, NULL);
2800 g_return_val_if_fail (needle != NULL, NULL);
2802 needle_len = strlen (needle);
2803 haystack_len = strlen (haystack);
2805 if (needle_len == 0)
2806 return (gchar *)haystack;
2808 if (haystack_len < needle_len)
2811 p = haystack + haystack_len - needle_len;
2813 while (p >= haystack)
2815 for (i = 0; i < needle_len; i++)
2816 if (p[i] != needle[i])
2830 * @haystack: a nul-terminated string.
2831 * @haystack_len: the maximum length of @haystack.
2832 * @needle: the nul-terminated string to search for.
2834 * Searches the string @haystack for the last occurrence
2835 * of the string @needle, limiting the length of the search
2838 * Return value: a pointer to the found occurrence, or
2839 * %NULL if not found.
2842 g_strrstr_len (const gchar *haystack,
2843 gssize haystack_len,
2844 const gchar *needle)
2846 g_return_val_if_fail (haystack != NULL, NULL);
2847 g_return_val_if_fail (needle != NULL, NULL);
2849 if (haystack_len < 0)
2850 return g_strrstr (haystack, needle);
2853 gsize needle_len = strlen (needle);
2854 const gchar *haystack_max = haystack + haystack_len;
2855 const gchar *p = haystack;
2858 while (p < haystack_max && *p)
2861 if (p < haystack + needle_len)
2866 while (p >= haystack)
2868 for (i = 0; i < needle_len; i++)
2869 if (p[i] != needle[i])
2885 * @str: a nul-terminated string.
2886 * @suffix: the nul-terminated suffix to look for.
2888 * Looks whether the string @str ends with @suffix.
2890 * Return value: %TRUE if @str end with @suffix, %FALSE otherwise.
2895 g_str_has_suffix (const gchar *str,
2896 const gchar *suffix)
2901 g_return_val_if_fail (str != NULL, FALSE);
2902 g_return_val_if_fail (suffix != NULL, FALSE);
2904 str_len = strlen (str);
2905 suffix_len = strlen (suffix);
2907 if (str_len < suffix_len)
2910 return strcmp (str + str_len - suffix_len, suffix) == 0;
2915 * @str: a nul-terminated string.
2916 * @prefix: the nul-terminated prefix to look for.
2918 * Looks whether the string @str begins with @prefix.
2920 * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise.
2925 g_str_has_prefix (const gchar *str,
2926 const gchar *prefix)
2931 g_return_val_if_fail (str != NULL, FALSE);
2932 g_return_val_if_fail (prefix != NULL, FALSE);
2934 str_len = strlen (str);
2935 prefix_len = strlen (prefix);
2937 if (str_len < prefix_len)
2940 return strncmp (str, prefix, prefix_len) == 0;
2947 * @msgval: another string
2949 * An auxiliary function for gettext() support (see Q_()).
2951 * Return value: @msgval, unless @msgval is identical to @msgid and contains
2952 * a '|' character, in which case a pointer to the substring of msgid after
2953 * the first '|' character is returned.
2957 G_CONST_RETURN gchar *
2958 g_strip_context (const gchar *msgid,
2959 const gchar *msgval)
2961 if (msgval == msgid)
2963 const char *c = strchr (msgid, '|');
2974 * @str_array: a %NULL-terminated array of strings.
2976 * Returns the length of the given %NULL-terminated
2977 * string array @str_array.
2979 * Return value: length of @str_array.
2984 g_strv_length (gchar **str_array)
2988 g_return_val_if_fail (str_array != NULL, 0);
2990 while (str_array[i])
2999 * @domain: the translation domain to use, or %NULL to use
3000 * the domain set with textdomain()
3001 * @msgctxtid: a combined message context and message id, separated
3002 * by a \004 character
3003 * @msgidoffset: the offset of the message id in @msgctxid
3005 * This function is a variant of g_dgettext() which supports
3006 * a disambiguating message context. GNU gettext uses the
3007 * '\004' character to separate the message context and
3008 * message id in @msgctxtid.
3009 * If 0 is passed as @msgidoffset, this function will fall back to
3010 * trying to use the deprecated convention of using "|" as a separation
3013 * This uses g_dgettext() internally. See that functions for differences
3014 * with dgettext() proper.
3016 * Applications should normally not use this function directly,
3017 * but use the C_() macro for translations with context.
3019 * Returns: The translated string
3023 G_CONST_RETURN gchar *
3024 g_dpgettext (const gchar *domain,
3025 const gchar *msgctxtid,
3028 const gchar *translation;
3031 translation = g_dgettext (domain, msgctxtid);
3033 if (translation == msgctxtid)
3035 if (msgidoffset > 0)
3036 return msgctxtid + msgidoffset;
3038 sep = strchr (msgctxtid, '|');
3042 /* try with '\004' instead of '|', in case
3043 * xgettext -kQ_:1g was used
3045 gchar *tmp = g_alloca (strlen (msgctxtid) + 1);
3046 strcpy (tmp, msgctxtid);
3047 tmp[sep - msgctxtid] = '\004';
3049 translation = g_dgettext (domain, tmp);
3051 if (translation == tmp)
3059 /* This function is taken from gettext.h
3060 * GNU gettext uses '\004' to separate context and msgid in .mo files.
3064 * @domain: the translation domain to use, or %NULL to use
3065 * the domain set with textdomain()
3066 * @context: the message context
3067 * @msgid: the message
3069 * This function is a variant of g_dgettext() which supports
3070 * a disambiguating message context. GNU gettext uses the
3071 * '\004' character to separate the message context and
3072 * message id in @msgctxtid.
3074 * This uses g_dgettext() internally. See that functions for differences
3075 * with dgettext() proper.
3077 * This function differs from C_() in that it is not a macro and
3078 * thus you may use non-string-literals as context and msgid arguments.
3080 * Returns: The translated string
3084 G_CONST_RETURN char *
3085 g_dpgettext2 (const char *domain,
3086 const char *msgctxt,
3089 size_t msgctxt_len = strlen (msgctxt) + 1;
3090 size_t msgid_len = strlen (msgid) + 1;
3091 const char *translation;
3094 msg_ctxt_id = g_alloca (msgctxt_len + msgid_len);
3096 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
3097 msg_ctxt_id[msgctxt_len - 1] = '\004';
3098 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
3100 translation = g_dgettext (domain, msg_ctxt_id);
3102 if (translation == msg_ctxt_id)
3104 /* try the old way of doing message contexts, too */
3105 msg_ctxt_id[msgctxt_len - 1] = '|';
3106 translation = g_dgettext (domain, msg_ctxt_id);
3108 if (translation == msg_ctxt_id)
3116 _g_dgettext_should_translate (void)
3118 static gsize translate = 0;
3120 SHOULD_TRANSLATE = 1,
3121 SHOULD_NOT_TRANSLATE = 2
3124 if (G_UNLIKELY (g_once_init_enter (&translate)))
3126 gboolean should_translate = TRUE;
3128 const char *default_domain = textdomain (NULL);
3129 const char *translator_comment = gettext ("");
3131 const char *translate_locale = setlocale (LC_MESSAGES, NULL);
3133 const char *translate_locale = g_win32_getlocale ();
3135 /* We should NOT translate only if all the following hold:
3136 * - user has called textdomain() and set textdomain to non-default
3137 * - default domain has no translations
3138 * - locale does not start with "en_" and is not "C"
3141 * - If text domain is still the default domain, maybe user calls
3142 * it later. Continue with old behavior of translating.
3143 * - If locale starts with "en_", we can continue using the
3144 * translations even if the app doesn't have translations for
3145 * this locale. That is, en_UK and en_CA for example.
3146 * - If locale is "C", maybe user calls setlocale(LC_ALL,"") later.
3147 * Continue with old behavior of translating.
3149 if (0 != strcmp (default_domain, "messages") &&
3150 '\0' == *translator_comment &&
3151 0 != strncmp (translate_locale, "en_", 3) &&
3152 0 != strcmp (translate_locale, "C"))
3153 should_translate = FALSE;
3155 g_once_init_leave (&translate,
3158 SHOULD_NOT_TRANSLATE);
3161 return translate == SHOULD_TRANSLATE;
3166 * @domain: the translation domain to use, or %NULL to use
3167 * the domain set with textdomain()
3168 * @msgid: message to translate
3170 * This function is a wrapper of dgettext() which does not translate
3171 * the message if the default domain as set with textdomain() has no
3172 * translations for the current locale.
3174 * The advantage of using this function over dgettext() proper is that
3175 * libraries using this function (like GTK+) will not use translations
3176 * if the application using the library does not have translations for
3177 * the current locale. This results in a consistent English-only
3178 * interface instead of one having partial translations. For this
3179 * feature to work, the call to textdomain() and setlocale() should
3180 * precede any g_dgettext() invocations. For GTK+, it means calling
3181 * textdomain() before gtk_init or its variants.
3183 * This function disables translations if and only if upon its first
3184 * call all the following conditions hold:
3186 * <listitem>@domain is not %NULL</listitem>
3187 * <listitem>textdomain() has been called to set a default text domain</listitem>
3188 * <listitem>there is no translations available for the default text domain
3189 * and the current locale</listitem>
3190 * <listitem>current locale is not "C" or any English locales (those
3191 * starting with "en_")</listitem>
3194 * Note that this behavior may not be desired for example if an application
3195 * has its untranslated messages in a language other than English. In those
3196 * cases the application should call textdomain() after initializing GTK+.
3198 * Applications should normally not use this function directly,
3199 * but use the _() macro for translations.
3201 * Returns: The translated string
3205 G_CONST_RETURN gchar *
3206 g_dgettext (const gchar *domain,
3209 if (domain && G_UNLIKELY (!_g_dgettext_should_translate ()))
3212 return dgettext (domain, msgid);
3217 * @domain: (allow-none): the translation domain to use, or %NULL to use
3218 * the domain set with textdomain()
3219 * @msgid: message to translate
3220 * @category: a locale category
3222 * This is a variant of g_dgettext() that allows specifying a locale
3223 * category instead of always using %LC_MESSAGES. See g_dgettext() for
3224 * more information about how this functions differs from calling
3225 * dcgettext() directly.
3227 * Returns: the translated string for the given locale category
3231 G_CONST_RETURN gchar *
3232 g_dcgettext (const gchar *domain,
3236 if (domain && G_UNLIKELY (!_g_dgettext_should_translate ()))
3239 return dcgettext (domain, msgid, category);
3244 * @domain: the translation domain to use, or %NULL to use
3245 * the domain set with textdomain()
3246 * @msgid: message to translate
3247 * @msgid_plural: plural form of the message
3248 * @n: the quantity for which translation is needed
3250 * This function is a wrapper of dngettext() which does not translate
3251 * the message if the default domain as set with textdomain() has no
3252 * translations for the current locale.
3254 * See g_dgettext() for details of how this differs from dngettext()
3257 * Returns: The translated string
3261 G_CONST_RETURN gchar *
3262 g_dngettext (const gchar *domain,
3264 const gchar *msgid_plural,
3267 if (domain && G_UNLIKELY (!_g_dgettext_should_translate ()))
3268 return n == 1 ? msgid : msgid_plural;
3270 return dngettext (domain, msgid, msgid_plural, n);