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.
283 * Note that this function is usually not the right function to use to
284 * assemble a translated message from pieces, since proper translation
285 * often requires the pieces to be reordered.
287 * <warning><para>The variable argument list <emphasis>must</emphasis> end
288 * with %NULL. If you forget the %NULL, g_strconcat() will start appending
289 * random memory junk to your string.</para></warning>
291 * Returns: a newly-allocated string containing all the string arguments
294 g_strconcat (const gchar *string1, ...)
305 l = 1 + strlen (string1);
306 va_start (args, string1);
307 s = va_arg (args, gchar*);
311 s = va_arg (args, gchar*);
315 concat = g_new (gchar, l);
318 ptr = g_stpcpy (ptr, string1);
319 va_start (args, string1);
320 s = va_arg (args, gchar*);
323 ptr = g_stpcpy (ptr, s);
324 s = va_arg (args, gchar*);
333 * @nptr: the string to convert to a numeric value.
334 * @endptr: if non-%NULL, it returns the character after
335 * the last character used in the conversion.
337 * Converts a string to a #gdouble value.
338 * It calls the standard strtod() function to handle the conversion, but
339 * if the string is not completely converted it attempts the conversion
340 * again with g_ascii_strtod(), and returns the best match.
342 * This function should seldomly be used. The normal situation when reading
343 * numbers not for human consumption is to use g_ascii_strtod(). Only when
344 * you know that you must expect both locale formatted and C formatted numbers
345 * should you use this. Make sure that you don't pass strings such as comma
346 * separated lists of values, since the commas may be interpreted as a decimal
347 * point in some locales, causing unexpected results.
349 * Return value: the #gdouble value.
352 g_strtod (const gchar *nptr,
360 g_return_val_if_fail (nptr != NULL, 0);
365 val_1 = strtod (nptr, &fail_pos_1);
367 if (fail_pos_1 && fail_pos_1[0] != 0)
368 val_2 = g_ascii_strtod (nptr, &fail_pos_2);
370 if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
373 *endptr = fail_pos_1;
379 *endptr = fail_pos_2;
386 * @nptr: the string to convert to a numeric value.
387 * @endptr: if non-%NULL, it returns the character after
388 * the last character used in the conversion.
390 * Converts a string to a #gdouble value.
392 * This function behaves like the standard strtod() function
393 * does in the C locale. It does this without actually changing
394 * the current locale, since that would not be thread-safe.
395 * A limitation of the implementation is that this function
396 * will still accept localized versions of infinities and NANs.
398 * This function is typically used when reading configuration
399 * files or other non-user input that should be locale independent.
400 * To handle input from the user you should normally use the
401 * locale-sensitive system strtod() function.
403 * To convert from a #gdouble to a string in a locale-insensitive
404 * way, use g_ascii_dtostr().
406 * If the correct value would cause overflow, plus or minus %HUGE_VAL
407 * is returned (according to the sign of the value), and %ERANGE is
408 * stored in %errno. If the correct value would cause underflow,
409 * zero is returned and %ERANGE is stored in %errno.
411 * This function resets %errno before calling strtod() so that
412 * you can reliably detect overflow and underflow.
414 * Return value: the #gdouble value.
417 g_ascii_strtod (const gchar *nptr,
422 struct lconv *locale_data;
423 const char *decimal_point;
424 int decimal_point_len;
425 const char *p, *decimal_point_pos;
426 const char *end = NULL; /* Silence gcc */
429 g_return_val_if_fail (nptr != NULL, 0);
433 locale_data = localeconv ();
434 decimal_point = locale_data->decimal_point;
435 decimal_point_len = strlen (decimal_point);
437 g_assert (decimal_point_len != 0);
439 decimal_point_pos = NULL;
442 if (decimal_point[0] != '.' ||
443 decimal_point[1] != 0)
446 /* Skip leading space */
447 while (g_ascii_isspace (*p))
450 /* Skip leading optional sign */
451 if (*p == '+' || *p == '-')
455 (p[1] == 'x' || p[1] == 'X'))
458 /* HEX - find the (optional) decimal point */
460 while (g_ascii_isxdigit (*p))
464 decimal_point_pos = p++;
466 while (g_ascii_isxdigit (*p))
469 if (*p == 'p' || *p == 'P')
471 if (*p == '+' || *p == '-')
473 while (g_ascii_isdigit (*p))
478 else if (g_ascii_isdigit (*p) || *p == '.')
480 while (g_ascii_isdigit (*p))
484 decimal_point_pos = p++;
486 while (g_ascii_isdigit (*p))
489 if (*p == 'e' || *p == 'E')
491 if (*p == '+' || *p == '-')
493 while (g_ascii_isdigit (*p))
498 /* For the other cases, we need not convert the decimal point */
501 if (decimal_point_pos)
505 /* We need to convert the '.' to the locale specific decimal point */
506 copy = g_malloc (end - nptr + 1 + decimal_point_len);
509 memcpy (c, nptr, decimal_point_pos - nptr);
510 c += decimal_point_pos - nptr;
511 memcpy (c, decimal_point, decimal_point_len);
512 c += decimal_point_len;
513 memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
514 c += end - (decimal_point_pos + 1);
518 val = strtod (copy, &fail_pos);
519 strtod_errno = errno;
523 if (fail_pos - copy > decimal_point_pos - nptr)
524 fail_pos = (char *)nptr + (fail_pos - copy) - (decimal_point_len - 1);
526 fail_pos = (char *)nptr + (fail_pos - copy);
536 copy = g_malloc (end - (char *)nptr + 1);
537 memcpy (copy, nptr, end - nptr);
538 *(copy + (end - (char *)nptr)) = 0;
541 val = strtod (copy, &fail_pos);
542 strtod_errno = errno;
546 fail_pos = (char *)nptr + (fail_pos - copy);
554 val = strtod (nptr, &fail_pos);
555 strtod_errno = errno;
561 errno = strtod_errno;
569 * @buffer: A buffer to place the resulting string in
570 * @buf_len: The length of the buffer.
571 * @d: The #gdouble to convert
573 * Converts a #gdouble to a string, using the '.' as
576 * This functions generates enough precision that converting
577 * the string back using g_ascii_strtod() gives the same machine-number
578 * (on machines with IEEE compatible 64bit doubles). It is
579 * guaranteed that the size of the resulting string will never
580 * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes.
582 * Return value: The pointer to the buffer with the converted string.
585 g_ascii_dtostr (gchar *buffer,
589 return g_ascii_formatd (buffer, buf_len, "%.17g", d);
594 * @buffer: A buffer to place the resulting string in
595 * @buf_len: The length of the buffer.
596 * @format: The printf()-style format to use for the
597 * code to use for converting.
598 * @d: The #gdouble to convert
600 * Converts a #gdouble to a string, using the '.' as
601 * decimal point. To format the number you pass in
602 * a printf()-style format string. Allowed conversion
603 * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
605 * If you just want to want to serialize the value into a
606 * string, use g_ascii_dtostr().
608 * Return value: The pointer to the buffer with the converted string.
611 g_ascii_formatd (gchar *buffer,
616 struct lconv *locale_data;
617 const char *decimal_point;
618 int decimal_point_len;
623 g_return_val_if_fail (buffer != NULL, NULL);
624 g_return_val_if_fail (format[0] == '%', NULL);
625 g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL);
627 format_char = format[strlen (format) - 1];
629 g_return_val_if_fail (format_char == 'e' || format_char == 'E' ||
630 format_char == 'f' || format_char == 'F' ||
631 format_char == 'g' || format_char == 'G',
634 if (format[0] != '%')
637 if (strpbrk (format + 1, "'l%"))
640 if (!(format_char == 'e' || format_char == 'E' ||
641 format_char == 'f' || format_char == 'F' ||
642 format_char == 'g' || format_char == 'G'))
646 _g_snprintf (buffer, buf_len, format, d);
648 locale_data = localeconv ();
649 decimal_point = locale_data->decimal_point;
650 decimal_point_len = strlen (decimal_point);
652 g_assert (decimal_point_len != 0);
654 if (decimal_point[0] != '.' ||
655 decimal_point[1] != 0)
659 while (g_ascii_isspace (*p))
662 if (*p == '+' || *p == '-')
665 while (isdigit ((guchar)*p))
668 if (strncmp (p, decimal_point, decimal_point_len) == 0)
672 if (decimal_point_len > 1)
674 rest_len = strlen (p + (decimal_point_len-1));
675 memmove (p, p + (decimal_point_len-1), rest_len);
685 g_parse_long_long (const gchar *nptr,
686 const gchar **endptr,
690 /* this code is based on on the strtol(3) code from GNU libc released under
691 * the GNU Lesser General Public License.
693 * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
694 * Free Software Foundation, Inc.
696 #define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
697 (c) == '\r' || (c) == '\t' || (c) == '\v')
698 #define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z')
699 #define ISLOWER(c) ((c) >= 'a' && (c) <= 'z')
700 #define ISALPHA(c) (ISUPPER (c) || ISLOWER (c))
701 #define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c))
702 #define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c))
707 const gchar *s, *save;
710 g_return_val_if_fail (nptr != NULL, 0);
713 if (base == 1 || base > 36)
723 /* Skip white space. */
727 if (G_UNLIKELY (!*s))
730 /* Check for a sign. */
739 /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
742 if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X')
753 /* Save the pointer so we can check later if anything happened. */
755 cutoff = G_MAXUINT64 / base;
756 cutlim = G_MAXUINT64 % base;
763 if (c >= '0' && c <= '9')
765 else if (ISALPHA (c))
766 c = TOUPPER (c) - 'A' + 10;
771 /* Check for overflow. */
772 if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
781 /* Check if anything actually happened. */
785 /* Store in ENDPTR the address of one character
786 past the last character we converted. */
790 if (G_UNLIKELY (overflow))
799 /* We must handle a special case here: the base is 0 or 16 and the
800 first two characters are '0' and 'x', but the rest are no
801 hexadecimal digits. This is no error case. We return 0 and
802 ENDPTR points to the `x`. */
805 if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
809 /* There was no number to convert. */
817 * @nptr: the string to convert to a numeric value.
818 * @endptr: if non-%NULL, it returns the character after
819 * the last character used in the conversion.
820 * @base: to be used for the conversion, 2..36 or 0
822 * Converts a string to a #guint64 value.
823 * This function behaves like the standard strtoull() function
824 * does in the C locale. It does this without actually
825 * changing the current locale, since that would not be
828 * This function is typically used when reading configuration
829 * files or other non-user input that should be locale independent.
830 * To handle input from the user you should normally use the
831 * locale-sensitive system strtoull() function.
833 * If the correct value would cause overflow, %G_MAXUINT64
834 * is returned, and %ERANGE is stored in %errno. If the base is
835 * outside the valid range, zero is returned, and %EINVAL is stored
836 * in %errno. If the string conversion fails, zero is returned, and
837 * @endptr returns @nptr (if @endptr is non-%NULL).
839 * Return value: the #guint64 value or zero on error.
844 g_ascii_strtoull (const gchar *nptr,
851 result = g_parse_long_long (nptr, (const gchar **) endptr, base, &negative);
853 /* Return the result of the appropriate sign. */
854 return negative ? -result : result;
859 * @nptr: the string to convert to a numeric value.
860 * @endptr: if non-%NULL, it returns the character after
861 * the last character used in the conversion.
862 * @base: to be used for the conversion, 2..36 or 0
864 * Converts a string to a #gint64 value.
865 * This function behaves like the standard strtoll() function
866 * does in the C locale. It does this without actually
867 * changing the current locale, since that would not be
870 * This function is typically used when reading configuration
871 * files or other non-user input that should be locale independent.
872 * To handle input from the user you should normally use the
873 * locale-sensitive system strtoll() function.
875 * If the correct value would cause overflow, %G_MAXINT64 or %G_MININT64
876 * is returned, and %ERANGE is stored in %errno. If the base is
877 * outside the valid range, zero is returned, and %EINVAL is stored
878 * in %errno. If the string conversion fails, zero is returned, and
879 * @endptr returns @nptr (if @endptr is non-%NULL).
881 * Return value: the #gint64 value or zero on error.
886 g_ascii_strtoll (const gchar *nptr,
893 result = g_parse_long_long (nptr, (const gchar **) endptr, base, &negative);
895 if (negative && result > (guint64) G_MININT64)
900 else if (!negative && result > (guint64) G_MAXINT64)
906 return - (gint64) result;
908 return (gint64) result;
913 * @errnum: the system error number. See the standard C %errno
916 * Returns a string corresponding to the given error code, e.g.
917 * "no such process". You should use this function in preference to
918 * strerror(), because it returns a string in UTF-8 encoding, and since
919 * not all platforms support the strerror() function.
921 * Returns: a UTF-8 string describing the error code. If the error code
922 * is unknown, it returns "unknown error (<code>)". The string
923 * can only be used until the next call to g_strerror()
925 G_CONST_RETURN gchar*
926 g_strerror (gint errnum)
928 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
930 int saved_errno = errno;
933 const char *msg_locale;
935 msg_locale = strerror (errnum);
936 if (g_get_charset (NULL))
943 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
946 /* Stick in the quark table so that we can return a static result
948 GQuark msg_quark = g_quark_from_string (msg_utf8);
951 msg_utf8 = (gchar *) g_quark_to_string (msg_quark);
960 case E2BIG: return "argument list too long";
963 case EACCES: return "permission denied";
966 case EADDRINUSE: return "address already in use";
969 case EADDRNOTAVAIL: return "can't assign requested address";
972 case EADV: return "advertise error";
975 case EAFNOSUPPORT: return "address family not supported by protocol family";
978 case EAGAIN: return "try again";
981 case EALIGN: return "EALIGN";
984 case EALREADY: return "operation already in progress";
987 case EBADE: return "bad exchange descriptor";
990 case EBADF: return "bad file number";
993 case EBADFD: return "file descriptor in bad state";
996 case EBADMSG: return "not a data message";
999 case EBADR: return "bad request descriptor";
1002 case EBADRPC: return "RPC structure is bad";
1005 case EBADRQC: return "bad request code";
1008 case EBADSLT: return "invalid slot";
1011 case EBFONT: return "bad font file format";
1014 case EBUSY: return "mount device busy";
1017 case ECHILD: return "no children";
1020 case ECHRNG: return "channel number out of range";
1023 case ECOMM: return "communication error on send";
1026 case ECONNABORTED: return "software caused connection abort";
1029 case ECONNREFUSED: return "connection refused";
1032 case ECONNRESET: return "connection reset by peer";
1034 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
1035 case EDEADLK: return "resource deadlock avoided";
1037 #if defined(EDEADLOCK) && (!defined(EDEADLK) || (EDEADLOCK != EDEADLK))
1038 case EDEADLOCK: return "resource deadlock avoided";
1041 case EDESTADDRREQ: return "destination address required";
1044 case EDIRTY: return "mounting a dirty fs w/o force";
1047 case EDOM: return "math argument out of range";
1050 case EDOTDOT: return "cross mount point";
1053 case EDQUOT: return "disk quota exceeded";
1056 case EDUPPKG: return "duplicate package name";
1059 case EEXIST: return "file already exists";
1062 case EFAULT: return "bad address in system call argument";
1065 case EFBIG: return "file too large";
1068 case EHOSTDOWN: return "host is down";
1071 case EHOSTUNREACH: return "host is unreachable";
1074 case EIDRM: return "identifier removed";
1077 case EINIT: return "initialization error";
1080 case EINPROGRESS: return "operation now in progress";
1083 case EINTR: return "interrupted system call";
1086 case EINVAL: return "invalid argument";
1089 case EIO: return "I/O error";
1092 case EISCONN: return "socket is already connected";
1095 case EISDIR: return "is a directory";
1098 case EISNAM: return "is a name file";
1101 case ELBIN: return "ELBIN";
1104 case EL2HLT: return "level 2 halted";
1107 case EL2NSYNC: return "level 2 not synchronized";
1110 case EL3HLT: return "level 3 halted";
1113 case EL3RST: return "level 3 reset";
1116 case ELIBACC: return "can not access a needed shared library";
1119 case ELIBBAD: return "accessing a corrupted shared library";
1122 case ELIBEXEC: return "can not exec a shared library directly";
1125 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
1128 case ELIBSCN: return ".lib section in a.out corrupted";
1131 case ELNRNG: return "link number out of range";
1134 case ELOOP: return "too many levels of symbolic links";
1137 case EMFILE: return "too many open files";
1140 case EMLINK: return "too many links";
1143 case EMSGSIZE: return "message too long";
1146 case EMULTIHOP: return "multihop attempted";
1149 case ENAMETOOLONG: return "file name too long";
1152 case ENAVAIL: return "not available";
1155 case ENET: return "ENET";
1158 case ENETDOWN: return "network is down";
1161 case ENETRESET: return "network dropped connection on reset";
1164 case ENETUNREACH: return "network is unreachable";
1167 case ENFILE: return "file table overflow";
1170 case ENOANO: return "anode table overflow";
1172 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
1173 case ENOBUFS: return "no buffer space available";
1176 case ENOCSI: return "no CSI structure available";
1179 case ENODATA: return "no data available";
1182 case ENODEV: return "no such device";
1185 case ENOENT: return "no such file or directory";
1188 case ENOEXEC: return "exec format error";
1191 case ENOLCK: return "no locks available";
1194 case ENOLINK: return "link has be severed";
1197 case ENOMEM: return "not enough memory";
1200 case ENOMSG: return "no message of desired type";
1203 case ENONET: return "machine is not on the network";
1206 case ENOPKG: return "package not installed";
1209 case ENOPROTOOPT: return "bad proocol option";
1212 case ENOSPC: return "no space left on device";
1215 case ENOSR: return "out of stream resources";
1218 case ENOSTR: return "not a stream device";
1221 case ENOSYM: return "unresolved symbol name";
1224 case ENOSYS: return "function not implemented";
1227 case ENOTBLK: return "block device required";
1230 case ENOTCONN: return "socket is not connected";
1233 case ENOTDIR: return "not a directory";
1236 case ENOTEMPTY: return "directory not empty";
1239 case ENOTNAM: return "not a name file";
1242 case ENOTSOCK: return "socket operation on non-socket";
1245 case ENOTTY: return "inappropriate device for ioctl";
1248 case ENOTUNIQ: return "name not unique on network";
1251 case ENXIO: return "no such device or address";
1254 case EOPNOTSUPP: return "operation not supported on socket";
1257 case EPERM: return "not owner";
1260 case EPFNOSUPPORT: return "protocol family not supported";
1263 case EPIPE: return "broken pipe";
1266 case EPROCLIM: return "too many processes";
1269 case EPROCUNAVAIL: return "bad procedure for program";
1271 #ifdef EPROGMISMATCH
1272 case EPROGMISMATCH: return "program version wrong";
1275 case EPROGUNAVAIL: return "RPC program not available";
1278 case EPROTO: return "protocol error";
1280 #ifdef EPROTONOSUPPORT
1281 case EPROTONOSUPPORT: return "protocol not suppored";
1284 case EPROTOTYPE: return "protocol wrong type for socket";
1287 case ERANGE: return "math result unrepresentable";
1289 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
1290 case EREFUSED: return "EREFUSED";
1293 case EREMCHG: return "remote address changed";
1296 case EREMDEV: return "remote device";
1299 case EREMOTE: return "pathname hit remote file system";
1302 case EREMOTEIO: return "remote i/o error";
1304 #ifdef EREMOTERELEASE
1305 case EREMOTERELEASE: return "EREMOTERELEASE";
1308 case EROFS: return "read-only file system";
1311 case ERPCMISMATCH: return "RPC version is wrong";
1314 case ERREMOTE: return "object is remote";
1317 case ESHUTDOWN: return "can't send afer socket shutdown";
1319 #ifdef ESOCKTNOSUPPORT
1320 case ESOCKTNOSUPPORT: return "socket type not supported";
1323 case ESPIPE: return "invalid seek";
1326 case ESRCH: return "no such process";
1329 case ESRMNT: return "srmount error";
1332 case ESTALE: return "stale remote file handle";
1335 case ESUCCESS: return "Error 0";
1338 case ETIME: return "timer expired";
1341 case ETIMEDOUT: return "connection timed out";
1344 case ETOOMANYREFS: return "too many references: can't splice";
1347 case ETXTBSY: return "text file or pseudo-device busy";
1350 case EUCLEAN: return "structure needs cleaning";
1353 case EUNATCH: return "protocol driver not attached";
1356 case EUSERS: return "too many users";
1359 case EVERSION: return "version mismatch";
1361 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
1362 case EWOULDBLOCK: return "operation would block";
1365 case EXDEV: return "cross-domain link";
1368 case EXFULL: return "message tables full";
1371 #else /* NO_SYS_ERRLIST */
1372 extern int sys_nerr;
1373 extern char *sys_errlist[];
1375 if ((errnum > 0) && (errnum <= sys_nerr))
1376 return sys_errlist [errnum];
1377 #endif /* NO_SYS_ERRLIST */
1379 msg = g_static_private_get (&msg_private);
1382 msg = g_new (gchar, 64);
1383 g_static_private_set (&msg_private, msg, g_free);
1386 _g_sprintf (msg, "unknown error (%d)", errnum);
1388 errno = saved_errno;
1394 * @signum: the signal number. See the <literal>signal</literal>
1397 * Returns a string describing the given signal, e.g. "Segmentation fault".
1398 * You should use this function in preference to strsignal(), because it
1399 * returns a string in UTF-8 encoding, and since not all platforms support
1400 * the strsignal() function.
1402 * Returns: a UTF-8 string describing the signal. If the signal is unknown,
1403 * it returns "unknown signal (<signum>)". The string can only be
1404 * used until the next call to g_strsignal()
1406 G_CONST_RETURN gchar*
1407 g_strsignal (gint signum)
1409 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
1412 #ifdef HAVE_STRSIGNAL
1413 const char *msg_locale;
1415 #if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN)
1416 extern const char *strsignal(int);
1418 /* this is declared differently (const) in string.h on BeOS */
1419 extern char *strsignal (int sig);
1420 #endif /* !G_OS_BEOS && !G_WITH_CYGWIN */
1421 msg_locale = strsignal (signum);
1422 if (g_get_charset (NULL))
1426 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
1429 /* Stick in the quark table so that we can return a static result
1431 GQuark msg_quark = g_quark_from_string (msg_utf8);
1434 return g_quark_to_string (msg_quark);
1437 #elif NO_SYS_SIGLIST
1441 case SIGHUP: return "Hangup";
1444 case SIGINT: return "Interrupt";
1447 case SIGQUIT: return "Quit";
1450 case SIGILL: return "Illegal instruction";
1453 case SIGTRAP: return "Trace/breakpoint trap";
1456 case SIGABRT: return "IOT trap/Abort";
1459 case SIGBUS: return "Bus error";
1462 case SIGFPE: return "Floating point exception";
1465 case SIGKILL: return "Killed";
1468 case SIGUSR1: return "User defined signal 1";
1471 case SIGSEGV: return "Segmentation fault";
1474 case SIGUSR2: return "User defined signal 2";
1477 case SIGPIPE: return "Broken pipe";
1480 case SIGALRM: return "Alarm clock";
1483 case SIGTERM: return "Terminated";
1486 case SIGSTKFLT: return "Stack fault";
1489 case SIGCHLD: return "Child exited";
1492 case SIGCONT: return "Continued";
1495 case SIGSTOP: return "Stopped (signal)";
1498 case SIGTSTP: return "Stopped";
1501 case SIGTTIN: return "Stopped (tty input)";
1504 case SIGTTOU: return "Stopped (tty output)";
1507 case SIGURG: return "Urgent condition";
1510 case SIGXCPU: return "CPU time limit exceeded";
1513 case SIGXFSZ: return "File size limit exceeded";
1516 case SIGVTALRM: return "Virtual time alarm";
1519 case SIGPROF: return "Profile signal";
1522 case SIGWINCH: return "Window size changed";
1525 case SIGIO: return "Possible I/O";
1528 case SIGPWR: return "Power failure";
1531 case SIGUNUSED: return "Unused signal";
1534 #else /* NO_SYS_SIGLIST */
1536 #ifdef NO_SYS_SIGLIST_DECL
1537 extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
1540 return (char*) /* this function should return const --josh */ sys_siglist [signum];
1541 #endif /* NO_SYS_SIGLIST */
1543 msg = g_static_private_get (&msg_private);
1546 msg = g_new (gchar, 64);
1547 g_static_private_set (&msg_private, msg, g_free);
1550 _g_sprintf (msg, "unknown signal (%d)", signum);
1555 /* Functions g_strlcpy and g_strlcat were originally developed by
1556 * Todd C. Miller <Todd.Miller@courtesan.com> to simplify writing secure code.
1557 * See ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/strlcpy.3
1558 * for more information.
1562 /* Use the native ones, if available; they might be implemented in assembly */
1564 g_strlcpy (gchar *dest,
1568 g_return_val_if_fail (dest != NULL, 0);
1569 g_return_val_if_fail (src != NULL, 0);
1571 return strlcpy (dest, src, dest_size);
1575 g_strlcat (gchar *dest,
1579 g_return_val_if_fail (dest != NULL, 0);
1580 g_return_val_if_fail (src != NULL, 0);
1582 return strlcat (dest, src, dest_size);
1585 #else /* ! HAVE_STRLCPY */
1588 * @dest: destination buffer
1589 * @src: source buffer
1590 * @dest_size: length of @dest in bytes
1592 * Portability wrapper that calls strlcpy() on systems which have it,
1593 * and emulates strlcpy() otherwise. Copies @src to @dest; @dest is
1594 * guaranteed to be nul-terminated; @src must be nul-terminated;
1595 * @dest_size is the buffer size, not the number of chars to copy.
1597 * At most dest_size - 1 characters will be copied. Always nul-terminates
1598 * (unless dest_size == 0). This function does <emphasis>not</emphasis>
1599 * allocate memory. Unlike strncpy(), this function doesn't pad dest (so
1600 * it's often faster). It returns the size of the attempted result,
1601 * strlen (src), so if @retval >= @dest_size, truncation occurred.
1603 * <note><para>Caveat: strlcpy() is supposedly more secure than
1604 * strcpy() or strncpy(), but if you really want to avoid screwups,
1605 * g_strdup() is an even better idea.</para></note>
1607 * Returns: length of @src
1610 g_strlcpy (gchar *dest,
1614 register gchar *d = dest;
1615 register const gchar *s = src;
1616 register gsize n = dest_size;
1618 g_return_val_if_fail (dest != NULL, 0);
1619 g_return_val_if_fail (src != NULL, 0);
1621 /* Copy as many bytes as will fit */
1622 if (n != 0 && --n != 0)
1625 register gchar c = *s++;
1633 /* If not enough room in dest, add NUL and traverse rest of src */
1642 return s - src - 1; /* count does not include NUL */
1647 * @dest: destination buffer, already containing one nul-terminated string
1648 * @src: source buffer
1649 * @dest_size: length of @dest buffer in bytes (not length of existing string
1652 * Portability wrapper that calls strlcat() on systems which have it,
1653 * and emulates it otherwise. Appends nul-terminated @src string to @dest,
1654 * guaranteeing nul-termination for @dest. The total size of @dest won't
1655 * exceed @dest_size.
1657 * At most dest_size - 1 characters will be copied.
1658 * Unlike strncat, dest_size is the full size of dest, not the space left over.
1659 * This function does NOT allocate memory.
1660 * This always NUL terminates (unless siz == 0 or there were no NUL characters
1661 * in the dest_size characters of dest to start with).
1663 * <note><para>Caveat: this is supposedly a more secure alternative to
1664 * strcat() or strncat(), but for real security g_strconcat() is harder
1665 * to mess up.</para></note>
1667 * Returns: size of attempted result, which is MIN (dest_size, strlen
1668 * (original dest)) + strlen (src), so if retval >= dest_size,
1669 * truncation occurred.
1672 g_strlcat (gchar *dest,
1676 register gchar *d = dest;
1677 register const gchar *s = src;
1678 register gsize bytes_left = dest_size;
1679 gsize dlength; /* Logically, MIN (strlen (d), dest_size) */
1681 g_return_val_if_fail (dest != NULL, 0);
1682 g_return_val_if_fail (src != NULL, 0);
1684 /* Find the end of dst and adjust bytes left but don't go past end */
1685 while (*d != 0 && bytes_left-- != 0)
1688 bytes_left = dest_size - dlength;
1690 if (bytes_left == 0)
1691 return dlength + strlen (s);
1695 if (bytes_left != 1)
1704 return dlength + (s - src); /* count does not include NUL */
1706 #endif /* ! HAVE_STRLCPY */
1711 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1713 * Converts all upper case ASCII letters to lower case ASCII letters.
1715 * Return value: a newly-allocated string, with all the upper case
1716 * characters in @str converted to lower case, with
1717 * semantics that exactly match g_ascii_tolower(). (Note
1718 * that this is unlike the old g_strdown(), which modified
1719 * the string in place.)
1722 g_ascii_strdown (const gchar *str,
1727 g_return_val_if_fail (str != NULL, NULL);
1732 result = g_strndup (str, len);
1733 for (s = result; *s; s++)
1734 *s = g_ascii_tolower (*s);
1742 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1744 * Converts all lower case ASCII letters to upper case ASCII letters.
1746 * Return value: a newly allocated string, with all the lower case
1747 * characters in @str converted to upper case, with
1748 * semantics that exactly match g_ascii_toupper(). (Note
1749 * that this is unlike the old g_strup(), which modified
1750 * the string in place.)
1753 g_ascii_strup (const gchar *str,
1758 g_return_val_if_fail (str != NULL, NULL);
1763 result = g_strndup (str, len);
1764 for (s = result; *s; s++)
1765 *s = g_ascii_toupper (*s);
1772 * @string: the string to convert.
1774 * Converts a string to lower case.
1776 * Return value: the string
1778 * Deprecated:2.2: This function is totally broken for the reasons discussed
1779 * in the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
1783 g_strdown (gchar *string)
1787 g_return_val_if_fail (string != NULL, NULL);
1789 s = (guchar *) string;
1798 return (gchar *) string;
1803 * @string: the string to convert.
1805 * Converts a string to upper case.
1807 * Return value: the string
1809 * Deprecated:2.2: This function is totally broken for the reasons discussed
1810 * in the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
1813 g_strup (gchar *string)
1817 g_return_val_if_fail (string != NULL, NULL);
1819 s = (guchar *) string;
1828 return (gchar *) string;
1833 * @string: the string to reverse
1835 * Reverses all of the bytes in a string. For example,
1836 * <literal>g_strreverse ("abcdef")</literal> will result
1839 * Note that g_strreverse() doesn't work on UTF-8 strings
1840 * containing multibyte characters. For that purpose, use
1841 * g_utf8_strreverse().
1843 * Returns: the same pointer passed in as @string
1846 g_strreverse (gchar *string)
1848 g_return_val_if_fail (string != NULL, NULL);
1852 register gchar *h, *t;
1855 t = string + strlen (string) - 1;
1874 * @c: any character.
1876 * Convert a character to ASCII lower case.
1878 * Unlike the standard C library tolower() function, this only
1879 * recognizes standard ASCII letters and ignores the locale, returning
1880 * all non-ASCII characters unchanged, even if they are lower case
1881 * letters in a particular character set. Also unlike the standard
1882 * library function, this takes and returns a char, not an int, so
1883 * don't call it on %EOF but no need to worry about casting to #guchar
1884 * before passing a possibly non-ASCII character in.
1886 * Return value: the result of converting @c to lower case.
1887 * If @c is not an ASCII upper case letter,
1888 * @c is returned unchanged.
1891 g_ascii_tolower (gchar c)
1893 return g_ascii_isupper (c) ? c - 'A' + 'a' : c;
1898 * @c: any character.
1900 * Convert a character to ASCII upper case.
1902 * Unlike the standard C library toupper() function, this only
1903 * recognizes standard ASCII letters and ignores the locale, returning
1904 * all non-ASCII characters unchanged, even if they are upper case
1905 * letters in a particular character set. Also unlike the standard
1906 * library function, this takes and returns a char, not an int, so
1907 * don't call it on %EOF but no need to worry about casting to #guchar
1908 * before passing a possibly non-ASCII character in.
1910 * Return value: the result of converting @c to upper case.
1911 * If @c is not an ASCII lower case letter,
1912 * @c is returned unchanged.
1915 g_ascii_toupper (gchar c)
1917 return g_ascii_islower (c) ? c - 'a' + 'A' : c;
1921 * g_ascii_digit_value:
1922 * @c: an ASCII character.
1924 * Determines the numeric value of a character as a decimal
1925 * digit. Differs from g_unichar_digit_value() because it takes
1926 * a char, so there's no worry about sign extension if characters
1929 * Return value: If @c is a decimal digit (according to
1930 * g_ascii_isdigit()), its numeric value. Otherwise, -1.
1933 g_ascii_digit_value (gchar c)
1935 if (g_ascii_isdigit (c))
1941 * g_ascii_xdigit_value:
1942 * @c: an ASCII character.
1944 * Determines the numeric value of a character as a hexidecimal
1945 * digit. Differs from g_unichar_xdigit_value() because it takes
1946 * a char, so there's no worry about sign extension if characters
1949 * Return value: If @c is a hex digit (according to
1950 * g_ascii_isxdigit()), its numeric value. Otherwise, -1.
1953 g_ascii_xdigit_value (gchar c)
1955 if (c >= 'A' && c <= 'F')
1956 return c - 'A' + 10;
1957 if (c >= 'a' && c <= 'f')
1958 return c - 'a' + 10;
1959 return g_ascii_digit_value (c);
1963 * g_ascii_strcasecmp:
1964 * @s1: string to compare with @s2.
1965 * @s2: string to compare with @s1.
1967 * Compare two strings, ignoring the case of ASCII characters.
1969 * Unlike the BSD strcasecmp() function, this only recognizes standard
1970 * ASCII letters and ignores the locale, treating all non-ASCII
1971 * bytes as if they are not letters.
1973 * This function should be used only on strings that are known to be
1974 * in encodings where the bytes corresponding to ASCII letters always
1975 * represent themselves. This includes UTF-8 and the ISO-8859-*
1976 * charsets, but not for instance double-byte encodings like the
1977 * Windows Codepage 932, where the trailing bytes of double-byte
1978 * characters include all ASCII letters. If you compare two CP932
1979 * strings using this function, you will get false matches.
1981 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1982 * or a positive value if @s1 > @s2.
1985 g_ascii_strcasecmp (const gchar *s1,
1990 g_return_val_if_fail (s1 != NULL, 0);
1991 g_return_val_if_fail (s2 != NULL, 0);
1995 c1 = (gint)(guchar) TOLOWER (*s1);
1996 c2 = (gint)(guchar) TOLOWER (*s2);
2002 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
2006 * g_ascii_strncasecmp:
2007 * @s1: string to compare with @s2.
2008 * @s2: string to compare with @s1.
2009 * @n: number of characters to compare.
2011 * Compare @s1 and @s2, ignoring the case of ASCII characters and any
2012 * characters after the first @n in each string.
2014 * Unlike the BSD strcasecmp() function, this only recognizes standard
2015 * ASCII letters and ignores the locale, treating all non-ASCII
2016 * characters as if they are not letters.
2018 * The same warning as in g_ascii_strcasecmp() applies: Use this
2019 * function only on strings known to be in encodings where bytes
2020 * corresponding to ASCII letters always represent themselves.
2022 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2023 * or a positive value if @s1 > @s2.
2026 g_ascii_strncasecmp (const gchar *s1,
2032 g_return_val_if_fail (s1 != NULL, 0);
2033 g_return_val_if_fail (s2 != NULL, 0);
2035 while (n && *s1 && *s2)
2038 c1 = (gint)(guchar) TOLOWER (*s1);
2039 c2 = (gint)(guchar) TOLOWER (*s2);
2046 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
2054 * @s2: a string to compare with @s1.
2056 * A case-insensitive string comparison, corresponding to the standard
2057 * strcasecmp() function on platforms which support it.
2059 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2060 * or a positive value if @s1 > @s2.
2062 * Deprecated:2.2: See g_strncasecmp() for a discussion of why this function
2063 * is deprecated and how to replace it.
2066 g_strcasecmp (const gchar *s1,
2069 #ifdef HAVE_STRCASECMP
2070 g_return_val_if_fail (s1 != NULL, 0);
2071 g_return_val_if_fail (s2 != NULL, 0);
2073 return strcasecmp (s1, s2);
2077 g_return_val_if_fail (s1 != NULL, 0);
2078 g_return_val_if_fail (s2 != NULL, 0);
2082 /* According to A. Cox, some platforms have islower's that
2083 * don't work right on non-uppercase
2085 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
2086 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
2092 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
2099 * @s2: a string to compare with @s1.
2100 * @n: the maximum number of characters to compare.
2102 * A case-insensitive string comparison, corresponding to the standard
2103 * strncasecmp() function on platforms which support it.
2104 * It is similar to g_strcasecmp() except it only compares the first @n
2105 * characters of the strings.
2107 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2108 * or a positive value if @s1 > @s2.
2110 * Deprecated:2.2: The problem with g_strncasecmp() is that it does the
2111 * comparison by calling toupper()/tolower(). These functions are
2112 * locale-specific and operate on single bytes. However, it is impossible
2113 * to handle things correctly from an I18N standpoint by operating on
2114 * bytes, since characters may be multibyte. Thus g_strncasecmp() is
2115 * broken if your string is guaranteed to be ASCII, since it's
2116 * locale-sensitive, and it's broken if your string is localized, since
2117 * it doesn't work on many encodings at all, including UTF-8, EUC-JP,
2120 * There are therefore two replacement functions: g_ascii_strncasecmp(),
2121 * which only works on ASCII and is not locale-sensitive, and
2122 * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8.
2125 g_strncasecmp (const gchar *s1,
2129 #ifdef HAVE_STRNCASECMP
2130 return strncasecmp (s1, s2, n);
2134 g_return_val_if_fail (s1 != NULL, 0);
2135 g_return_val_if_fail (s2 != NULL, 0);
2137 while (n && *s1 && *s2)
2140 /* According to A. Cox, some platforms have islower's that
2141 * don't work right on non-uppercase
2143 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
2144 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
2151 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
2158 g_strdelimit (gchar *string,
2159 const gchar *delimiters,
2164 g_return_val_if_fail (string != NULL, NULL);
2167 delimiters = G_STR_DELIMITERS;
2169 for (c = string; *c; c++)
2171 if (strchr (delimiters, *c))
2179 g_strcanon (gchar *string,
2180 const gchar *valid_chars,
2185 g_return_val_if_fail (string != NULL, NULL);
2186 g_return_val_if_fail (valid_chars != NULL, NULL);
2188 for (c = string; *c; c++)
2190 if (!strchr (valid_chars, *c))
2198 g_strcompress (const gchar *source)
2200 const gchar *p = source, *octal;
2201 gchar *dest = g_malloc (strlen (source) + 1);
2212 g_warning ("g_strcompress: trailing \\");
2214 case '0': case '1': case '2': case '3': case '4':
2215 case '5': case '6': case '7':
2218 while ((p < octal + 3) && (*p >= '0') && (*p <= '7'))
2220 *q = (*q * 8) + (*p - '0');
2241 default: /* Also handles \" and \\ */
2257 g_strescape (const gchar *source,
2258 const gchar *exceptions)
2265 g_return_val_if_fail (source != NULL, NULL);
2267 p = (guchar *) source;
2268 /* Each source byte needs maximally four destination chars (\777) */
2269 q = dest = g_malloc (strlen (source) * 4 + 1);
2271 memset (excmap, 0, 256);
2274 guchar *e = (guchar *) exceptions;
2320 if ((*p < ' ') || (*p >= 0177))
2323 *q++ = '0' + (((*p) >> 6) & 07);
2324 *q++ = '0' + (((*p) >> 3) & 07);
2325 *q++ = '0' + ((*p) & 07);
2339 g_strchug (gchar *string)
2343 g_return_val_if_fail (string != NULL, NULL);
2345 for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
2348 g_memmove (string, start, strlen ((gchar *) start) + 1);
2354 g_strchomp (gchar *string)
2358 g_return_val_if_fail (string != NULL, NULL);
2360 len = strlen (string);
2363 if (g_ascii_isspace ((guchar) string[len]))
2374 * @string: a string to split.
2375 * @delimiter: a string which specifies the places at which to split the string.
2376 * The delimiter is not included in any of the resulting strings, unless
2377 * @max_tokens is reached.
2378 * @max_tokens: the maximum number of pieces to split @string into. If this is
2379 * less than 1, the string is split completely.
2381 * Splits a string into a maximum of @max_tokens pieces, using the given
2382 * @delimiter. If @max_tokens is reached, the remainder of @string is appended
2383 * to the last token.
2385 * As a special case, the result of splitting the empty string "" is an empty
2386 * vector, not a vector containing a single string. The reason for this
2387 * special case is that being able to represent a empty vector is typically
2388 * more useful than consistent handling of empty elements. If you do need
2389 * to represent empty elements, you'll need to check for the empty string
2390 * before calling g_strsplit().
2392 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2393 * g_strfreev() to free it.
2396 g_strsplit (const gchar *string,
2397 const gchar *delimiter,
2400 GSList *string_list = NULL, *slist;
2401 gchar **str_array, *s;
2403 const gchar *remainder;
2405 g_return_val_if_fail (string != NULL, NULL);
2406 g_return_val_if_fail (delimiter != NULL, NULL);
2407 g_return_val_if_fail (delimiter[0] != '\0', NULL);
2410 max_tokens = G_MAXINT;
2413 s = strstr (remainder, delimiter);
2416 gsize delimiter_len = strlen (delimiter);
2418 while (--max_tokens && s)
2422 len = s - remainder;
2423 string_list = g_slist_prepend (string_list,
2424 g_strndup (remainder, len));
2426 remainder = s + delimiter_len;
2427 s = strstr (remainder, delimiter);
2433 string_list = g_slist_prepend (string_list, g_strdup (remainder));
2436 str_array = g_new (gchar*, n + 1);
2438 str_array[n--] = NULL;
2439 for (slist = string_list; slist; slist = slist->next)
2440 str_array[n--] = slist->data;
2442 g_slist_free (string_list);
2449 * @string: The string to be tokenized
2450 * @delimiters: A nul-terminated string containing bytes that are used
2451 * to split the string.
2452 * @max_tokens: The maximum number of tokens to split @string into.
2453 * If this is less than 1, the string is split completely
2455 * Splits @string into a number of tokens not containing any of the characters
2456 * in @delimiter. A token is the (possibly empty) longest string that does not
2457 * contain any of the characters in @delimiters. If @max_tokens is reached, the
2458 * remainder is appended to the last token.
2460 * For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a
2461 * %NULL-terminated vector containing the three strings "abc", "def",
2464 * The result if g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated
2465 * vector containing the four strings "", "def", "ghi", and "".
2467 * As a special case, the result of splitting the empty string "" is an empty
2468 * vector, not a vector containing a single string. The reason for this
2469 * special case is that being able to represent a empty vector is typically
2470 * more useful than consistent handling of empty elements. If you do need
2471 * to represent empty elements, you'll need to check for the empty string
2472 * before calling g_strsplit_set().
2474 * Note that this function works on bytes not characters, so it can't be used
2475 * to delimit UTF-8 strings for anything but ASCII characters.
2477 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2478 * g_strfreev() to free it.
2483 g_strsplit_set (const gchar *string,
2484 const gchar *delimiters,
2487 gboolean delim_table[256];
2488 GSList *tokens, *list;
2491 const gchar *current;
2495 g_return_val_if_fail (string != NULL, NULL);
2496 g_return_val_if_fail (delimiters != NULL, NULL);
2499 max_tokens = G_MAXINT;
2501 if (*string == '\0')
2503 result = g_new (char *, 1);
2508 memset (delim_table, FALSE, sizeof (delim_table));
2509 for (s = delimiters; *s != '\0'; ++s)
2510 delim_table[*(guchar *)s] = TRUE;
2515 s = current = string;
2518 if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens)
2520 token = g_strndup (current, s - current);
2521 tokens = g_slist_prepend (tokens, token);
2530 token = g_strndup (current, s - current);
2531 tokens = g_slist_prepend (tokens, token);
2534 result = g_new (gchar *, n_tokens + 1);
2536 result[n_tokens] = NULL;
2537 for (list = tokens; list != NULL; list = list->next)
2538 result[--n_tokens] = list->data;
2540 g_slist_free (tokens);
2547 * @str_array: a %NULL-terminated array of strings to free.
2549 * Frees a %NULL-terminated array of strings, and the array itself.
2550 * If called on a %NULL value, g_strfreev() simply returns.
2553 g_strfreev (gchar **str_array)
2559 for (i = 0; str_array[i] != NULL; i++)
2560 g_free (str_array[i]);
2568 * @str_array: %NULL-terminated array of strings.
2570 * Copies %NULL-terminated array of strings. The copy is a deep copy;
2571 * the new array should be freed by first freeing each string, then
2572 * the array itself. g_strfreev() does this for you. If called
2573 * on a %NULL value, g_strdupv() simply returns %NULL.
2575 * Return value: a new %NULL-terminated array of strings.
2578 g_strdupv (gchar **str_array)
2586 while (str_array[i])
2589 retval = g_new (gchar*, i + 1);
2592 while (str_array[i])
2594 retval[i] = g_strdup (str_array[i]);
2607 * @separator: a string to insert between each of the strings, or %NULL
2608 * @str_array: a %NULL-terminated array of strings to join
2610 * Joins a number of strings together to form one long string, with the
2611 * optional @separator inserted between each of them. The returned string
2612 * should be freed with g_free().
2614 * Returns: a newly-allocated string containing all of the strings joined
2615 * together, with @separator between them
2618 g_strjoinv (const gchar *separator,
2624 g_return_val_if_fail (str_array != NULL, NULL);
2626 if (separator == NULL)
2633 gsize separator_len;
2635 separator_len = strlen (separator);
2636 /* First part, getting length */
2637 len = 1 + strlen (str_array[0]);
2638 for (i = 1; str_array[i] != NULL; i++)
2639 len += strlen (str_array[i]);
2640 len += separator_len * (i - 1);
2642 /* Second part, building string */
2643 string = g_new (gchar, len);
2644 ptr = g_stpcpy (string, *str_array);
2645 for (i = 1; str_array[i] != NULL; i++)
2647 ptr = g_stpcpy (ptr, separator);
2648 ptr = g_stpcpy (ptr, str_array[i]);
2652 string = g_strdup ("");
2659 * @separator: a string to insert between each of the strings, or %NULL
2660 * @Varargs: a %NULL-terminated list of strings to join
2662 * Joins a number of strings together to form one long string, with the
2663 * optional @separator inserted between each of them. The returned string
2664 * should be freed with g_free().
2666 * Returns: a newly-allocated string containing all of the strings joined
2667 * together, with @separator between them
2670 g_strjoin (const gchar *separator,
2676 gsize separator_len;
2679 if (separator == NULL)
2682 separator_len = strlen (separator);
2684 va_start (args, separator);
2686 s = va_arg (args, gchar*);
2690 /* First part, getting length */
2691 len = 1 + strlen (s);
2693 s = va_arg (args, gchar*);
2696 len += separator_len + strlen (s);
2697 s = va_arg (args, gchar*);
2701 /* Second part, building string */
2702 string = g_new (gchar, len);
2704 va_start (args, separator);
2706 s = va_arg (args, gchar*);
2707 ptr = g_stpcpy (string, s);
2709 s = va_arg (args, gchar*);
2712 ptr = g_stpcpy (ptr, separator);
2713 ptr = g_stpcpy (ptr, s);
2714 s = va_arg (args, gchar*);
2718 string = g_strdup ("");
2728 * @haystack: a string.
2729 * @haystack_len: the maximum length of @haystack. Note that -1 is
2730 * a valid length, if @haystack is nul-terminated, meaning it will
2731 * search through the whole string.
2732 * @needle: the string to search for.
2734 * Searches the string @haystack for the first occurrence
2735 * of the string @needle, limiting the length of the search
2738 * Return value: a pointer to the found occurrence, or
2739 * %NULL if not found.
2742 g_strstr_len (const gchar *haystack,
2743 gssize haystack_len,
2744 const gchar *needle)
2746 g_return_val_if_fail (haystack != NULL, NULL);
2747 g_return_val_if_fail (needle != NULL, NULL);
2749 if (haystack_len < 0)
2750 return strstr (haystack, needle);
2753 const gchar *p = haystack;
2754 gsize needle_len = strlen (needle);
2758 if (needle_len == 0)
2759 return (gchar *)haystack;
2761 if (haystack_len < needle_len)
2764 end = haystack + haystack_len - needle_len;
2766 while (p <= end && *p)
2768 for (i = 0; i < needle_len; i++)
2769 if (p[i] != needle[i])
2784 * @haystack: a nul-terminated string.
2785 * @needle: the nul-terminated string to search for.
2787 * Searches the string @haystack for the last occurrence
2788 * of the string @needle.
2790 * Return value: a pointer to the found occurrence, or
2791 * %NULL if not found.
2794 g_strrstr (const gchar *haystack,
2795 const gchar *needle)
2802 g_return_val_if_fail (haystack != NULL, NULL);
2803 g_return_val_if_fail (needle != NULL, NULL);
2805 needle_len = strlen (needle);
2806 haystack_len = strlen (haystack);
2808 if (needle_len == 0)
2809 return (gchar *)haystack;
2811 if (haystack_len < needle_len)
2814 p = haystack + haystack_len - needle_len;
2816 while (p >= haystack)
2818 for (i = 0; i < needle_len; i++)
2819 if (p[i] != needle[i])
2833 * @haystack: a nul-terminated string.
2834 * @haystack_len: the maximum length of @haystack.
2835 * @needle: the nul-terminated string to search for.
2837 * Searches the string @haystack for the last occurrence
2838 * of the string @needle, limiting the length of the search
2841 * Return value: a pointer to the found occurrence, or
2842 * %NULL if not found.
2845 g_strrstr_len (const gchar *haystack,
2846 gssize haystack_len,
2847 const gchar *needle)
2849 g_return_val_if_fail (haystack != NULL, NULL);
2850 g_return_val_if_fail (needle != NULL, NULL);
2852 if (haystack_len < 0)
2853 return g_strrstr (haystack, needle);
2856 gsize needle_len = strlen (needle);
2857 const gchar *haystack_max = haystack + haystack_len;
2858 const gchar *p = haystack;
2861 while (p < haystack_max && *p)
2864 if (p < haystack + needle_len)
2869 while (p >= haystack)
2871 for (i = 0; i < needle_len; i++)
2872 if (p[i] != needle[i])
2888 * @str: a nul-terminated string.
2889 * @suffix: the nul-terminated suffix to look for.
2891 * Looks whether the string @str ends with @suffix.
2893 * Return value: %TRUE if @str end with @suffix, %FALSE otherwise.
2898 g_str_has_suffix (const gchar *str,
2899 const gchar *suffix)
2904 g_return_val_if_fail (str != NULL, FALSE);
2905 g_return_val_if_fail (suffix != NULL, FALSE);
2907 str_len = strlen (str);
2908 suffix_len = strlen (suffix);
2910 if (str_len < suffix_len)
2913 return strcmp (str + str_len - suffix_len, suffix) == 0;
2918 * @str: a nul-terminated string.
2919 * @prefix: the nul-terminated prefix to look for.
2921 * Looks whether the string @str begins with @prefix.
2923 * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise.
2928 g_str_has_prefix (const gchar *str,
2929 const gchar *prefix)
2934 g_return_val_if_fail (str != NULL, FALSE);
2935 g_return_val_if_fail (prefix != NULL, FALSE);
2937 str_len = strlen (str);
2938 prefix_len = strlen (prefix);
2940 if (str_len < prefix_len)
2943 return strncmp (str, prefix, prefix_len) == 0;
2950 * @msgval: another string
2952 * An auxiliary function for gettext() support (see Q_()).
2954 * Return value: @msgval, unless @msgval is identical to @msgid and contains
2955 * a '|' character, in which case a pointer to the substring of msgid after
2956 * the first '|' character is returned.
2960 G_CONST_RETURN gchar *
2961 g_strip_context (const gchar *msgid,
2962 const gchar *msgval)
2964 if (msgval == msgid)
2966 const char *c = strchr (msgid, '|');
2977 * @str_array: a %NULL-terminated array of strings.
2979 * Returns the length of the given %NULL-terminated
2980 * string array @str_array.
2982 * Return value: length of @str_array.
2987 g_strv_length (gchar **str_array)
2991 g_return_val_if_fail (str_array != NULL, 0);
2993 while (str_array[i])
3002 * @domain: the translation domain to use, or %NULL to use
3003 * the domain set with textdomain()
3004 * @msgctxtid: a combined message context and message id, separated
3005 * by a \004 character
3006 * @msgidoffset: the offset of the message id in @msgctxid
3008 * This function is a variant of g_dgettext() which supports
3009 * a disambiguating message context. GNU gettext uses the
3010 * '\004' character to separate the message context and
3011 * message id in @msgctxtid.
3012 * If 0 is passed as @msgidoffset, this function will fall back to
3013 * trying to use the deprecated convention of using "|" as a separation
3016 * This uses g_dgettext() internally. See that functions for differences
3017 * with dgettext() proper.
3019 * Applications should normally not use this function directly,
3020 * but use the C_() macro for translations with context.
3022 * Returns: The translated string
3026 G_CONST_RETURN gchar *
3027 g_dpgettext (const gchar *domain,
3028 const gchar *msgctxtid,
3031 const gchar *translation;
3034 translation = g_dgettext (domain, msgctxtid);
3036 if (translation == msgctxtid)
3038 if (msgidoffset > 0)
3039 return msgctxtid + msgidoffset;
3041 sep = strchr (msgctxtid, '|');
3045 /* try with '\004' instead of '|', in case
3046 * xgettext -kQ_:1g was used
3048 gchar *tmp = g_alloca (strlen (msgctxtid) + 1);
3049 strcpy (tmp, msgctxtid);
3050 tmp[sep - msgctxtid] = '\004';
3052 translation = g_dgettext (domain, tmp);
3054 if (translation == tmp)
3062 /* This function is taken from gettext.h
3063 * GNU gettext uses '\004' to separate context and msgid in .mo files.
3067 * @domain: the translation domain to use, or %NULL to use
3068 * the domain set with textdomain()
3069 * @context: the message context
3070 * @msgid: the message
3072 * This function is a variant of g_dgettext() which supports
3073 * a disambiguating message context. GNU gettext uses the
3074 * '\004' character to separate the message context and
3075 * message id in @msgctxtid.
3077 * This uses g_dgettext() internally. See that functions for differences
3078 * with dgettext() proper.
3080 * This function differs from C_() in that it is not a macro and
3081 * thus you may use non-string-literals as context and msgid arguments.
3083 * Returns: The translated string
3087 G_CONST_RETURN char *
3088 g_dpgettext2 (const char *domain,
3089 const char *msgctxt,
3092 size_t msgctxt_len = strlen (msgctxt) + 1;
3093 size_t msgid_len = strlen (msgid) + 1;
3094 const char *translation;
3097 msg_ctxt_id = g_alloca (msgctxt_len + msgid_len);
3099 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
3100 msg_ctxt_id[msgctxt_len - 1] = '\004';
3101 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
3103 translation = g_dgettext (domain, msg_ctxt_id);
3105 if (translation == msg_ctxt_id)
3107 /* try the old way of doing message contexts, too */
3108 msg_ctxt_id[msgctxt_len - 1] = '|';
3109 translation = g_dgettext (domain, msg_ctxt_id);
3111 if (translation == msg_ctxt_id)
3119 _g_dgettext_should_translate (void)
3121 static gsize translate = 0;
3123 SHOULD_TRANSLATE = 1,
3124 SHOULD_NOT_TRANSLATE = 2
3127 if (G_UNLIKELY (g_once_init_enter (&translate)))
3129 gboolean should_translate = TRUE;
3131 const char *default_domain = textdomain (NULL);
3132 const char *translator_comment = gettext ("");
3134 const char *translate_locale = setlocale (LC_MESSAGES, NULL);
3136 const char *translate_locale = g_win32_getlocale ();
3138 /* We should NOT translate only if all the following hold:
3139 * - user has called textdomain() and set textdomain to non-default
3140 * - default domain has no translations
3141 * - locale does not start with "en_" and is not "C"
3144 * - If text domain is still the default domain, maybe user calls
3145 * it later. Continue with old behavior of translating.
3146 * - If locale starts with "en_", we can continue using the
3147 * translations even if the app doesn't have translations for
3148 * this locale. That is, en_UK and en_CA for example.
3149 * - If locale is "C", maybe user calls setlocale(LC_ALL,"") later.
3150 * Continue with old behavior of translating.
3152 if (0 != strcmp (default_domain, "messages") &&
3153 '\0' == *translator_comment &&
3154 0 != strncmp (translate_locale, "en_", 3) &&
3155 0 != strcmp (translate_locale, "C"))
3156 should_translate = FALSE;
3158 g_once_init_leave (&translate,
3161 SHOULD_NOT_TRANSLATE);
3164 return translate == SHOULD_TRANSLATE;
3169 * @domain: the translation domain to use, or %NULL to use
3170 * the domain set with textdomain()
3171 * @msgid: message to translate
3173 * This function is a wrapper of dgettext() which does not translate
3174 * the message if the default domain as set with textdomain() has no
3175 * translations for the current locale.
3177 * The advantage of using this function over dgettext() proper is that
3178 * libraries using this function (like GTK+) will not use translations
3179 * if the application using the library does not have translations for
3180 * the current locale. This results in a consistent English-only
3181 * interface instead of one having partial translations. For this
3182 * feature to work, the call to textdomain() and setlocale() should
3183 * precede any g_dgettext() invocations. For GTK+, it means calling
3184 * textdomain() before gtk_init or its variants.
3186 * This function disables translations if and only if upon its first
3187 * call all the following conditions hold:
3189 * <listitem>@domain is not %NULL</listitem>
3190 * <listitem>textdomain() has been called to set a default text domain</listitem>
3191 * <listitem>there is no translations available for the default text domain
3192 * and the current locale</listitem>
3193 * <listitem>current locale is not "C" or any English locales (those
3194 * starting with "en_")</listitem>
3197 * Note that this behavior may not be desired for example if an application
3198 * has its untranslated messages in a language other than English. In those
3199 * cases the application should call textdomain() after initializing GTK+.
3201 * Applications should normally not use this function directly,
3202 * but use the _() macro for translations.
3204 * Returns: The translated string
3208 G_CONST_RETURN gchar *
3209 g_dgettext (const gchar *domain,
3212 if (domain && G_UNLIKELY (!_g_dgettext_should_translate ()))
3215 return dgettext (domain, msgid);
3220 * @domain: (allow-none): the translation domain to use, or %NULL to use
3221 * the domain set with textdomain()
3222 * @msgid: message to translate
3223 * @category: a locale category
3225 * This is a variant of g_dgettext() that allows specifying a locale
3226 * category instead of always using %LC_MESSAGES. See g_dgettext() for
3227 * more information about how this functions differs from calling
3228 * dcgettext() directly.
3230 * Returns: the translated string for the given locale category
3234 G_CONST_RETURN gchar *
3235 g_dcgettext (const gchar *domain,
3239 if (domain && G_UNLIKELY (!_g_dgettext_should_translate ()))
3242 return dcgettext (domain, msgid, category);
3247 * @domain: the translation domain to use, or %NULL to use
3248 * the domain set with textdomain()
3249 * @msgid: message to translate
3250 * @msgid_plural: plural form of the message
3251 * @n: the quantity for which translation is needed
3253 * This function is a wrapper of dngettext() which does not translate
3254 * the message if the default domain as set with textdomain() has no
3255 * translations for the current locale.
3257 * See g_dgettext() for details of how this differs from dngettext()
3260 * Returns: The translated string
3264 G_CONST_RETURN gchar *
3265 g_dngettext (const gchar *domain,
3267 const gchar *msgid_plural,
3270 if (domain && G_UNLIKELY (!_g_dgettext_should_translate ()))
3271 return n == 1 ? msgid : msgid_plural;
3273 return dngettext (domain, msgid, msgid_plural, n);