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"
57 /* do not include <unistd.h> in this place since it
58 * interferes with g_strsignal() on some OSes
61 static const guint16 ascii_table_data[256] = {
62 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
63 0x004, 0x104, 0x104, 0x004, 0x104, 0x104, 0x004, 0x004,
64 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
65 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
66 0x140, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
67 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
68 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459,
69 0x459, 0x459, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
70 0x0d0, 0x653, 0x653, 0x653, 0x653, 0x653, 0x653, 0x253,
71 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
72 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
73 0x253, 0x253, 0x253, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
74 0x0d0, 0x473, 0x473, 0x473, 0x473, 0x473, 0x473, 0x073,
75 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
76 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
77 0x073, 0x073, 0x073, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x004
78 /* the upper 128 are all zeroes */
81 const guint16 * const g_ascii_table = ascii_table_data;
85 * @str: the string to duplicate
87 * Duplicates a string. If @str is %NULL it returns %NULL.
88 * The returned string should be freed with g_free()
89 * when no longer needed.
91 * Returns: a newly-allocated copy of @str
94 g_strdup (const gchar *str)
101 length = strlen (str) + 1;
102 new_str = g_new (char, length);
103 memcpy (new_str, str, length);
112 g_memdup (gconstpointer mem,
119 new_mem = g_malloc (byte_size);
120 memcpy (new_mem, mem, byte_size);
130 * @str: the string to duplicate
131 * @n: the maximum number of bytes to copy from @str
133 * Duplicates the first @n bytes of a string, returning a newly-allocated
134 * buffer @n + 1 bytes long which will always be nul-terminated.
135 * If @str is less than @n bytes long the buffer is padded with nuls.
136 * If @str is %NULL it returns %NULL.
137 * The returned value should be freed when no longer needed.
140 * To copy a number of characters from a UTF-8 encoded string, use
141 * g_utf8_strncpy() instead.
144 * Returns: a newly-allocated buffer containing the first @n bytes
145 * of @str, nul-terminated
148 g_strndup (const gchar *str,
155 new_str = g_new (gchar, n + 1);
156 strncpy (new_str, str, n);
167 * @length: the length of the new string
168 * @fill_char: the byte to fill the string with
170 * Creates a new string @length bytes long filled with @fill_char.
171 * The returned string should be freed when no longer needed.
173 * Returns: a newly-allocated string filled the @fill_char
176 g_strnfill (gsize length,
181 str = g_new (gchar, length + 1);
182 memset (str, (guchar)fill_char, length);
190 * @dest: destination buffer.
191 * @src: source string.
193 * Copies a nul-terminated string into the dest buffer, include the
194 * trailing nul, and return a pointer to the trailing nul byte.
195 * This is useful for concatenating multiple strings together
196 * without having to repeatedly scan for the end.
198 * Return value: a pointer to trailing nul byte.
201 g_stpcpy (gchar *dest,
205 g_return_val_if_fail (dest != NULL, NULL);
206 g_return_val_if_fail (src != NULL, NULL);
207 return stpcpy (dest, src);
209 register gchar *d = dest;
210 register const gchar *s = src;
212 g_return_val_if_fail (dest != NULL, NULL);
213 g_return_val_if_fail (src != NULL, NULL);
216 while (*s++ != '\0');
224 * @format: a standard printf() format string, but notice
225 * <link linkend="string-precision">string precision pitfalls</link>
226 * @args: the list of parameters to insert into the format string
228 * Similar to the standard C vsprintf() function but safer, since it
229 * calculates the maximum space required and allocates memory to hold
230 * the result. The returned string should be freed with g_free() when
233 * See also g_vasprintf(), which offers the same functionality, but
234 * additionally returns the length of the allocated string.
236 * Returns: a newly-allocated string holding the result
239 g_strdup_vprintf (const gchar *format,
242 gchar *string = NULL;
244 g_vasprintf (&string, format, args);
251 * @format: a standard printf() format string, but notice
252 * <link linkend="string-precision">string precision pitfalls</link>
253 * @Varargs: the parameters to insert into the format string
255 * Similar to the standard C sprintf() function but safer, since it
256 * calculates the maximum space required and allocates memory to hold
257 * the result. The returned string should be freed with g_free() when no
260 * Returns: a newly-allocated string holding the result
263 g_strdup_printf (const gchar *format,
269 va_start (args, format);
270 buffer = g_strdup_vprintf (format, args);
278 * @string1: the first string to add, which must not be %NULL
279 * @Varargs: a %NULL-terminated list of strings to append to the string
281 * Concatenates all of the given strings into one long string.
282 * The returned string should be freed with g_free() when no longer needed.
285 * <warning><para>The variable argument list <emphasis>must</emphasis> end
286 * with %NULL. If you forget the %NULL, g_strconcat() will start appending
287 * random memory junk to your string.</para></warning>
289 * Returns: a newly-allocated string containing all the string arguments
292 g_strconcat (const gchar *string1, ...)
303 l = 1 + strlen (string1);
304 va_start (args, string1);
305 s = va_arg (args, gchar*);
309 s = va_arg (args, gchar*);
313 concat = g_new (gchar, l);
316 ptr = g_stpcpy (ptr, string1);
317 va_start (args, string1);
318 s = va_arg (args, gchar*);
321 ptr = g_stpcpy (ptr, s);
322 s = va_arg (args, gchar*);
331 * @nptr: the string to convert to a numeric value.
332 * @endptr: if non-%NULL, it returns the character after
333 * the last character used in the conversion.
335 * Converts a string to a #gdouble value.
336 * It calls the standard strtod() function to handle the conversion, but
337 * if the string is not completely converted it attempts the conversion
338 * again with g_ascii_strtod(), and returns the best match.
340 * This function should seldomly be used. The normal situation when reading
341 * numbers not for human consumption is to use g_ascii_strtod(). Only when
342 * you know that you must expect both locale formatted and C formatted numbers
343 * should you use this. Make sure that you don't pass strings such as comma
344 * separated lists of values, since the commas may be interpreted as a decimal
345 * point in some locales, causing unexpected results.
347 * Return value: the #gdouble value.
350 g_strtod (const gchar *nptr,
358 g_return_val_if_fail (nptr != NULL, 0);
363 val_1 = strtod (nptr, &fail_pos_1);
365 if (fail_pos_1 && fail_pos_1[0] != 0)
366 val_2 = g_ascii_strtod (nptr, &fail_pos_2);
368 if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
371 *endptr = fail_pos_1;
377 *endptr = fail_pos_2;
384 * @nptr: the string to convert to a numeric value.
385 * @endptr: if non-%NULL, it returns the character after
386 * the last character used in the conversion.
388 * Converts a string to a #gdouble value.
390 * This function behaves like the standard strtod() function
391 * does in the C locale. It does this without actually changing
392 * the current locale, since that would not be thread-safe.
393 * A limitation of the implementation is that this function
394 * will still accept localized versions of infinities and NANs.
396 * This function is typically used when reading configuration
397 * files or other non-user input that should be locale independent.
398 * To handle input from the user you should normally use the
399 * locale-sensitive system strtod() function.
401 * To convert from a #gdouble to a string in a locale-insensitive
402 * way, use g_ascii_dtostr().
404 * If the correct value would cause overflow, plus or minus %HUGE_VAL
405 * is returned (according to the sign of the value), and %ERANGE is
406 * stored in %errno. If the correct value would cause underflow,
407 * zero is returned and %ERANGE is stored in %errno.
409 * This function resets %errno before calling strtod() so that
410 * you can reliably detect overflow and underflow.
412 * Return value: the #gdouble value.
415 g_ascii_strtod (const gchar *nptr,
420 struct lconv *locale_data;
421 const char *decimal_point;
422 int decimal_point_len;
423 const char *p, *decimal_point_pos;
424 const char *end = NULL; /* Silence gcc */
427 g_return_val_if_fail (nptr != NULL, 0);
431 locale_data = localeconv ();
432 decimal_point = locale_data->decimal_point;
433 decimal_point_len = strlen (decimal_point);
435 g_assert (decimal_point_len != 0);
437 decimal_point_pos = NULL;
440 if (decimal_point[0] != '.' ||
441 decimal_point[1] != 0)
444 /* Skip leading space */
445 while (g_ascii_isspace (*p))
448 /* Skip leading optional sign */
449 if (*p == '+' || *p == '-')
453 (p[1] == 'x' || p[1] == 'X'))
456 /* HEX - find the (optional) decimal point */
458 while (g_ascii_isxdigit (*p))
462 decimal_point_pos = p++;
464 while (g_ascii_isxdigit (*p))
467 if (*p == 'p' || *p == 'P')
469 if (*p == '+' || *p == '-')
471 while (g_ascii_isdigit (*p))
476 else if (g_ascii_isdigit (*p) || *p == '.')
478 while (g_ascii_isdigit (*p))
482 decimal_point_pos = p++;
484 while (g_ascii_isdigit (*p))
487 if (*p == 'e' || *p == 'E')
489 if (*p == '+' || *p == '-')
491 while (g_ascii_isdigit (*p))
496 /* For the other cases, we need not convert the decimal point */
499 if (decimal_point_pos)
503 /* We need to convert the '.' to the locale specific decimal point */
504 copy = g_malloc (end - nptr + 1 + decimal_point_len);
507 memcpy (c, nptr, decimal_point_pos - nptr);
508 c += decimal_point_pos - nptr;
509 memcpy (c, decimal_point, decimal_point_len);
510 c += decimal_point_len;
511 memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
512 c += end - (decimal_point_pos + 1);
516 val = strtod (copy, &fail_pos);
517 strtod_errno = errno;
521 if (fail_pos - copy > decimal_point_pos - nptr)
522 fail_pos = (char *)nptr + (fail_pos - copy) - (decimal_point_len - 1);
524 fail_pos = (char *)nptr + (fail_pos - copy);
534 copy = g_malloc (end - (char *)nptr + 1);
535 memcpy (copy, nptr, end - nptr);
536 *(copy + (end - (char *)nptr)) = 0;
539 val = strtod (copy, &fail_pos);
540 strtod_errno = errno;
544 fail_pos = (char *)nptr + (fail_pos - copy);
552 val = strtod (nptr, &fail_pos);
553 strtod_errno = errno;
559 errno = strtod_errno;
567 * @buffer: A buffer to place the resulting string in
568 * @buf_len: The length of the buffer.
569 * @d: The #gdouble to convert
571 * Converts a #gdouble to a string, using the '.' as
574 * This functions generates enough precision that converting
575 * the string back using g_ascii_strtod() gives the same machine-number
576 * (on machines with IEEE compatible 64bit doubles). It is
577 * guaranteed that the size of the resulting string will never
578 * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes.
580 * Return value: The pointer to the buffer with the converted string.
583 g_ascii_dtostr (gchar *buffer,
587 return g_ascii_formatd (buffer, buf_len, "%.17g", d);
592 * @buffer: A buffer to place the resulting string in
593 * @buf_len: The length of the buffer.
594 * @format: The printf()-style format to use for the
595 * code to use for converting.
596 * @d: The #gdouble to convert
598 * Converts a #gdouble to a string, using the '.' as
599 * decimal point. To format the number you pass in
600 * a printf()-style format string. Allowed conversion
601 * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
603 * If you just want to want to serialize the value into a
604 * string, use g_ascii_dtostr().
606 * Return value: The pointer to the buffer with the converted string.
609 g_ascii_formatd (gchar *buffer,
614 struct lconv *locale_data;
615 const char *decimal_point;
616 int decimal_point_len;
621 g_return_val_if_fail (buffer != NULL, NULL);
622 g_return_val_if_fail (format[0] == '%', NULL);
623 g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL);
625 format_char = format[strlen (format) - 1];
627 g_return_val_if_fail (format_char == 'e' || format_char == 'E' ||
628 format_char == 'f' || format_char == 'F' ||
629 format_char == 'g' || format_char == 'G',
632 if (format[0] != '%')
635 if (strpbrk (format + 1, "'l%"))
638 if (!(format_char == 'e' || format_char == 'E' ||
639 format_char == 'f' || format_char == 'F' ||
640 format_char == 'g' || format_char == 'G'))
644 _g_snprintf (buffer, buf_len, format, d);
646 locale_data = localeconv ();
647 decimal_point = locale_data->decimal_point;
648 decimal_point_len = strlen (decimal_point);
650 g_assert (decimal_point_len != 0);
652 if (decimal_point[0] != '.' ||
653 decimal_point[1] != 0)
657 while (g_ascii_isspace (*p))
660 if (*p == '+' || *p == '-')
663 while (isdigit ((guchar)*p))
666 if (strncmp (p, decimal_point, decimal_point_len) == 0)
670 if (decimal_point_len > 1)
672 rest_len = strlen (p + (decimal_point_len-1));
673 memmove (p, p + (decimal_point_len-1), rest_len);
683 g_parse_long_long (const gchar *nptr,
684 const gchar **endptr,
688 /* this code is based on on the strtol(3) code from GNU libc released under
689 * the GNU Lesser General Public License.
691 * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
692 * Free Software Foundation, Inc.
694 #define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
695 (c) == '\r' || (c) == '\t' || (c) == '\v')
696 #define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z')
697 #define ISLOWER(c) ((c) >= 'a' && (c) <= 'z')
698 #define ISALPHA(c) (ISUPPER (c) || ISLOWER (c))
699 #define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c))
700 #define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c))
705 const gchar *s, *save;
708 g_return_val_if_fail (nptr != NULL, 0);
711 if (base == 1 || base > 36)
721 /* Skip white space. */
725 if (G_UNLIKELY (!*s))
728 /* Check for a sign. */
737 /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
740 if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X')
751 /* Save the pointer so we can check later if anything happened. */
753 cutoff = G_MAXUINT64 / base;
754 cutlim = G_MAXUINT64 % base;
761 if (c >= '0' && c <= '9')
763 else if (ISALPHA (c))
764 c = TOUPPER (c) - 'A' + 10;
769 /* Check for overflow. */
770 if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
779 /* Check if anything actually happened. */
783 /* Store in ENDPTR the address of one character
784 past the last character we converted. */
788 if (G_UNLIKELY (overflow))
797 /* We must handle a special case here: the base is 0 or 16 and the
798 first two characters are '0' and 'x', but the rest are no
799 hexadecimal digits. This is no error case. We return 0 and
800 ENDPTR points to the `x`. */
803 if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
807 /* There was no number to convert. */
815 * @nptr: the string to convert to a numeric value.
816 * @endptr: if non-%NULL, it returns the character after
817 * the last character used in the conversion.
818 * @base: to be used for the conversion, 2..36 or 0
820 * Converts a string to a #guint64 value.
821 * This function behaves like the standard strtoull() function
822 * does in the C locale. It does this without actually
823 * changing the current locale, since that would not be
826 * This function is typically used when reading configuration
827 * files or other non-user input that should be locale independent.
828 * To handle input from the user you should normally use the
829 * locale-sensitive system strtoull() function.
831 * If the correct value would cause overflow, %G_MAXUINT64
832 * is returned, and %ERANGE is stored in %errno. If the base is
833 * outside the valid range, zero is returned, and %EINVAL is stored
834 * in %errno. If the string conversion fails, zero is returned, and
835 * @endptr returns @nptr (if @endptr is non-%NULL).
837 * Return value: the #guint64 value or zero on error.
842 g_ascii_strtoull (const gchar *nptr,
849 result = g_parse_long_long (nptr, (const gchar **) endptr, base, &negative);
851 /* Return the result of the appropriate sign. */
852 return negative ? -result : result;
857 * @nptr: the string to convert to a numeric value.
858 * @endptr: if non-%NULL, it returns the character after
859 * the last character used in the conversion.
860 * @base: to be used for the conversion, 2..36 or 0
862 * Converts a string to a #gint64 value.
863 * This function behaves like the standard strtoll() function
864 * does in the C locale. It does this without actually
865 * changing the current locale, since that would not be
868 * This function is typically used when reading configuration
869 * files or other non-user input that should be locale independent.
870 * To handle input from the user you should normally use the
871 * locale-sensitive system strtoll() function.
873 * If the correct value would cause overflow, %G_MAXINT64 or %G_MININT64
874 * is returned, and %ERANGE is stored in %errno. If the base is
875 * outside the valid range, zero is returned, and %EINVAL is stored
876 * in %errno. If the string conversion fails, zero is returned, and
877 * @endptr returns @nptr (if @endptr is non-%NULL).
879 * Return value: the #gint64 value or zero on error.
884 g_ascii_strtoll (const gchar *nptr,
891 result = g_parse_long_long (nptr, (const gchar **) endptr, base, &negative);
893 if (negative && result > (guint64) G_MININT64)
898 else if (!negative && result > (guint64) G_MAXINT64)
904 return - (gint64) result;
906 return (gint64) result;
911 * @errnum: the system error number. See the standard C %errno
914 * Returns a string corresponding to the given error code, e.g.
915 * "no such process". You should use this function in preference to
916 * strerror(), because it returns a string in UTF-8 encoding, and since
917 * not all platforms support the strerror() function.
919 * Returns: a UTF-8 string describing the error code. If the error code
920 * is unknown, it returns "unknown error (<code>)". The string
921 * can only be used until the next call to g_strerror()
923 G_CONST_RETURN gchar*
924 g_strerror (gint errnum)
926 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
928 int saved_errno = errno;
931 const char *msg_locale;
933 msg_locale = strerror (errnum);
934 if (g_get_charset (NULL))
941 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
944 /* Stick in the quark table so that we can return a static result
946 GQuark msg_quark = g_quark_from_string (msg_utf8);
949 msg_utf8 = (gchar *) g_quark_to_string (msg_quark);
958 case E2BIG: return "argument list too long";
961 case EACCES: return "permission denied";
964 case EADDRINUSE: return "address already in use";
967 case EADDRNOTAVAIL: return "can't assign requested address";
970 case EADV: return "advertise error";
973 case EAFNOSUPPORT: return "address family not supported by protocol family";
976 case EAGAIN: return "try again";
979 case EALIGN: return "EALIGN";
982 case EALREADY: return "operation already in progress";
985 case EBADE: return "bad exchange descriptor";
988 case EBADF: return "bad file number";
991 case EBADFD: return "file descriptor in bad state";
994 case EBADMSG: return "not a data message";
997 case EBADR: return "bad request descriptor";
1000 case EBADRPC: return "RPC structure is bad";
1003 case EBADRQC: return "bad request code";
1006 case EBADSLT: return "invalid slot";
1009 case EBFONT: return "bad font file format";
1012 case EBUSY: return "mount device busy";
1015 case ECHILD: return "no children";
1018 case ECHRNG: return "channel number out of range";
1021 case ECOMM: return "communication error on send";
1024 case ECONNABORTED: return "software caused connection abort";
1027 case ECONNREFUSED: return "connection refused";
1030 case ECONNRESET: return "connection reset by peer";
1032 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
1033 case EDEADLK: return "resource deadlock avoided";
1035 #if defined(EDEADLOCK) && (!defined(EDEADLK) || (EDEADLOCK != EDEADLK))
1036 case EDEADLOCK: return "resource deadlock avoided";
1039 case EDESTADDRREQ: return "destination address required";
1042 case EDIRTY: return "mounting a dirty fs w/o force";
1045 case EDOM: return "math argument out of range";
1048 case EDOTDOT: return "cross mount point";
1051 case EDQUOT: return "disk quota exceeded";
1054 case EDUPPKG: return "duplicate package name";
1057 case EEXIST: return "file already exists";
1060 case EFAULT: return "bad address in system call argument";
1063 case EFBIG: return "file too large";
1066 case EHOSTDOWN: return "host is down";
1069 case EHOSTUNREACH: return "host is unreachable";
1072 case EIDRM: return "identifier removed";
1075 case EINIT: return "initialization error";
1078 case EINPROGRESS: return "operation now in progress";
1081 case EINTR: return "interrupted system call";
1084 case EINVAL: return "invalid argument";
1087 case EIO: return "I/O error";
1090 case EISCONN: return "socket is already connected";
1093 case EISDIR: return "is a directory";
1096 case EISNAM: return "is a name file";
1099 case ELBIN: return "ELBIN";
1102 case EL2HLT: return "level 2 halted";
1105 case EL2NSYNC: return "level 2 not synchronized";
1108 case EL3HLT: return "level 3 halted";
1111 case EL3RST: return "level 3 reset";
1114 case ELIBACC: return "can not access a needed shared library";
1117 case ELIBBAD: return "accessing a corrupted shared library";
1120 case ELIBEXEC: return "can not exec a shared library directly";
1123 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
1126 case ELIBSCN: return ".lib section in a.out corrupted";
1129 case ELNRNG: return "link number out of range";
1132 case ELOOP: return "too many levels of symbolic links";
1135 case EMFILE: return "too many open files";
1138 case EMLINK: return "too many links";
1141 case EMSGSIZE: return "message too long";
1144 case EMULTIHOP: return "multihop attempted";
1147 case ENAMETOOLONG: return "file name too long";
1150 case ENAVAIL: return "not available";
1153 case ENET: return "ENET";
1156 case ENETDOWN: return "network is down";
1159 case ENETRESET: return "network dropped connection on reset";
1162 case ENETUNREACH: return "network is unreachable";
1165 case ENFILE: return "file table overflow";
1168 case ENOANO: return "anode table overflow";
1170 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
1171 case ENOBUFS: return "no buffer space available";
1174 case ENOCSI: return "no CSI structure available";
1177 case ENODATA: return "no data available";
1180 case ENODEV: return "no such device";
1183 case ENOENT: return "no such file or directory";
1186 case ENOEXEC: return "exec format error";
1189 case ENOLCK: return "no locks available";
1192 case ENOLINK: return "link has be severed";
1195 case ENOMEM: return "not enough memory";
1198 case ENOMSG: return "no message of desired type";
1201 case ENONET: return "machine is not on the network";
1204 case ENOPKG: return "package not installed";
1207 case ENOPROTOOPT: return "bad proocol option";
1210 case ENOSPC: return "no space left on device";
1213 case ENOSR: return "out of stream resources";
1216 case ENOSTR: return "not a stream device";
1219 case ENOSYM: return "unresolved symbol name";
1222 case ENOSYS: return "function not implemented";
1225 case ENOTBLK: return "block device required";
1228 case ENOTCONN: return "socket is not connected";
1231 case ENOTDIR: return "not a directory";
1234 case ENOTEMPTY: return "directory not empty";
1237 case ENOTNAM: return "not a name file";
1240 case ENOTSOCK: return "socket operation on non-socket";
1243 case ENOTTY: return "inappropriate device for ioctl";
1246 case ENOTUNIQ: return "name not unique on network";
1249 case ENXIO: return "no such device or address";
1252 case EOPNOTSUPP: return "operation not supported on socket";
1255 case EPERM: return "not owner";
1258 case EPFNOSUPPORT: return "protocol family not supported";
1261 case EPIPE: return "broken pipe";
1264 case EPROCLIM: return "too many processes";
1267 case EPROCUNAVAIL: return "bad procedure for program";
1269 #ifdef EPROGMISMATCH
1270 case EPROGMISMATCH: return "program version wrong";
1273 case EPROGUNAVAIL: return "RPC program not available";
1276 case EPROTO: return "protocol error";
1278 #ifdef EPROTONOSUPPORT
1279 case EPROTONOSUPPORT: return "protocol not suppored";
1282 case EPROTOTYPE: return "protocol wrong type for socket";
1285 case ERANGE: return "math result unrepresentable";
1287 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
1288 case EREFUSED: return "EREFUSED";
1291 case EREMCHG: return "remote address changed";
1294 case EREMDEV: return "remote device";
1297 case EREMOTE: return "pathname hit remote file system";
1300 case EREMOTEIO: return "remote i/o error";
1302 #ifdef EREMOTERELEASE
1303 case EREMOTERELEASE: return "EREMOTERELEASE";
1306 case EROFS: return "read-only file system";
1309 case ERPCMISMATCH: return "RPC version is wrong";
1312 case ERREMOTE: return "object is remote";
1315 case ESHUTDOWN: return "can't send afer socket shutdown";
1317 #ifdef ESOCKTNOSUPPORT
1318 case ESOCKTNOSUPPORT: return "socket type not supported";
1321 case ESPIPE: return "invalid seek";
1324 case ESRCH: return "no such process";
1327 case ESRMNT: return "srmount error";
1330 case ESTALE: return "stale remote file handle";
1333 case ESUCCESS: return "Error 0";
1336 case ETIME: return "timer expired";
1339 case ETIMEDOUT: return "connection timed out";
1342 case ETOOMANYREFS: return "too many references: can't splice";
1345 case ETXTBSY: return "text file or pseudo-device busy";
1348 case EUCLEAN: return "structure needs cleaning";
1351 case EUNATCH: return "protocol driver not attached";
1354 case EUSERS: return "too many users";
1357 case EVERSION: return "version mismatch";
1359 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
1360 case EWOULDBLOCK: return "operation would block";
1363 case EXDEV: return "cross-domain link";
1366 case EXFULL: return "message tables full";
1369 #else /* NO_SYS_ERRLIST */
1370 extern int sys_nerr;
1371 extern char *sys_errlist[];
1373 if ((errnum > 0) && (errnum <= sys_nerr))
1374 return sys_errlist [errnum];
1375 #endif /* NO_SYS_ERRLIST */
1377 msg = g_static_private_get (&msg_private);
1380 msg = g_new (gchar, 64);
1381 g_static_private_set (&msg_private, msg, g_free);
1384 _g_sprintf (msg, "unknown error (%d)", errnum);
1386 errno = saved_errno;
1392 * @signum: the signal number. See the <literal>signal</literal>
1395 * Returns a string describing the given signal, e.g. "Segmentation fault".
1396 * You should use this function in preference to strsignal(), because it
1397 * returns a string in UTF-8 encoding, and since not all platforms support
1398 * the strsignal() function.
1400 * Returns: a UTF-8 string describing the signal. If the signal is unknown,
1401 * it returns "unknown signal (<signum>)". The string can only be
1402 * used until the next call to g_strsignal()
1404 G_CONST_RETURN gchar*
1405 g_strsignal (gint signum)
1407 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
1410 #ifdef HAVE_STRSIGNAL
1411 const char *msg_locale;
1413 #if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN)
1414 extern const char *strsignal(int);
1416 /* this is declared differently (const) in string.h on BeOS */
1417 extern char *strsignal (int sig);
1418 #endif /* !G_OS_BEOS && !G_WITH_CYGWIN */
1419 msg_locale = strsignal (signum);
1420 if (g_get_charset (NULL))
1424 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
1427 /* Stick in the quark table so that we can return a static result
1429 GQuark msg_quark = g_quark_from_string (msg_utf8);
1432 return g_quark_to_string (msg_quark);
1435 #elif NO_SYS_SIGLIST
1439 case SIGHUP: return "Hangup";
1442 case SIGINT: return "Interrupt";
1445 case SIGQUIT: return "Quit";
1448 case SIGILL: return "Illegal instruction";
1451 case SIGTRAP: return "Trace/breakpoint trap";
1454 case SIGABRT: return "IOT trap/Abort";
1457 case SIGBUS: return "Bus error";
1460 case SIGFPE: return "Floating point exception";
1463 case SIGKILL: return "Killed";
1466 case SIGUSR1: return "User defined signal 1";
1469 case SIGSEGV: return "Segmentation fault";
1472 case SIGUSR2: return "User defined signal 2";
1475 case SIGPIPE: return "Broken pipe";
1478 case SIGALRM: return "Alarm clock";
1481 case SIGTERM: return "Terminated";
1484 case SIGSTKFLT: return "Stack fault";
1487 case SIGCHLD: return "Child exited";
1490 case SIGCONT: return "Continued";
1493 case SIGSTOP: return "Stopped (signal)";
1496 case SIGTSTP: return "Stopped";
1499 case SIGTTIN: return "Stopped (tty input)";
1502 case SIGTTOU: return "Stopped (tty output)";
1505 case SIGURG: return "Urgent condition";
1508 case SIGXCPU: return "CPU time limit exceeded";
1511 case SIGXFSZ: return "File size limit exceeded";
1514 case SIGVTALRM: return "Virtual time alarm";
1517 case SIGPROF: return "Profile signal";
1520 case SIGWINCH: return "Window size changed";
1523 case SIGIO: return "Possible I/O";
1526 case SIGPWR: return "Power failure";
1529 case SIGUNUSED: return "Unused signal";
1532 #else /* NO_SYS_SIGLIST */
1534 #ifdef NO_SYS_SIGLIST_DECL
1535 extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
1538 return (char*) /* this function should return const --josh */ sys_siglist [signum];
1539 #endif /* NO_SYS_SIGLIST */
1541 msg = g_static_private_get (&msg_private);
1544 msg = g_new (gchar, 64);
1545 g_static_private_set (&msg_private, msg, g_free);
1548 _g_sprintf (msg, "unknown signal (%d)", signum);
1553 /* Functions g_strlcpy and g_strlcat were originally developed by
1554 * Todd C. Miller <Todd.Miller@courtesan.com> to simplify writing secure code.
1555 * See ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/strlcpy.3
1556 * for more information.
1560 /* Use the native ones, if available; they might be implemented in assembly */
1562 g_strlcpy (gchar *dest,
1566 g_return_val_if_fail (dest != NULL, 0);
1567 g_return_val_if_fail (src != NULL, 0);
1569 return strlcpy (dest, src, dest_size);
1573 g_strlcat (gchar *dest,
1577 g_return_val_if_fail (dest != NULL, 0);
1578 g_return_val_if_fail (src != NULL, 0);
1580 return strlcat (dest, src, dest_size);
1583 #else /* ! HAVE_STRLCPY */
1586 * @dest: destination buffer
1587 * @src: source buffer
1588 * @dest_size: length of @dest in bytes
1590 * Portability wrapper that calls strlcpy() on systems which have it,
1591 * and emulates strlcpy() otherwise. Copies @src to @dest; @dest is
1592 * guaranteed to be nul-terminated; @src must be nul-terminated;
1593 * @dest_size is the buffer size, not the number of chars to copy.
1595 * At most dest_size - 1 characters will be copied. Always nul-terminates
1596 * (unless dest_size == 0). This function does <emphasis>not</emphasis>
1597 * allocate memory. Unlike strncpy(), this function doesn't pad dest (so
1598 * it's often faster). It returns the size of the attempted result,
1599 * strlen (src), so if @retval >= @dest_size, truncation occurred.
1601 * <note><para>Caveat: strlcpy() is supposedly more secure than
1602 * strcpy() or strncpy(), but if you really want to avoid screwups,
1603 * g_strdup() is an even better idea.</para></note>
1605 * Returns: length of @src
1608 g_strlcpy (gchar *dest,
1612 register gchar *d = dest;
1613 register const gchar *s = src;
1614 register gsize n = dest_size;
1616 g_return_val_if_fail (dest != NULL, 0);
1617 g_return_val_if_fail (src != NULL, 0);
1619 /* Copy as many bytes as will fit */
1620 if (n != 0 && --n != 0)
1623 register gchar c = *s++;
1631 /* If not enough room in dest, add NUL and traverse rest of src */
1640 return s - src - 1; /* count does not include NUL */
1645 * @dest: destination buffer, already containing one nul-terminated string
1646 * @src: source buffer
1647 * @dest_size: length of @dest buffer in bytes (not length of existing string
1650 * Portability wrapper that calls strlcat() on systems which have it,
1651 * and emulates it otherwise. Appends nul-terminated @src string to @dest,
1652 * guaranteeing nul-termination for @dest. The total size of @dest won't
1653 * exceed @dest_size.
1655 * At most dest_size - 1 characters will be copied.
1656 * Unlike strncat, dest_size is the full size of dest, not the space left over.
1657 * This function does NOT allocate memory.
1658 * This always NUL terminates (unless siz == 0 or there were no NUL characters
1659 * in the dest_size characters of dest to start with).
1661 * <note><para>Caveat: this is supposedly a more secure alternative to
1662 * strcat() or strncat(), but for real security g_strconcat() is harder
1663 * to mess up.</para></note>
1665 * Returns size of attempted result, which is
1666 * MIN (dest_size, strlen (original dest)) + strlen (src),
1667 * so if retval >= dest_size, truncation occurred.
1670 g_strlcat (gchar *dest,
1674 register gchar *d = dest;
1675 register const gchar *s = src;
1676 register gsize bytes_left = dest_size;
1677 gsize dlength; /* Logically, MIN (strlen (d), dest_size) */
1679 g_return_val_if_fail (dest != NULL, 0);
1680 g_return_val_if_fail (src != NULL, 0);
1682 /* Find the end of dst and adjust bytes left but don't go past end */
1683 while (*d != 0 && bytes_left-- != 0)
1686 bytes_left = dest_size - dlength;
1688 if (bytes_left == 0)
1689 return dlength + strlen (s);
1693 if (bytes_left != 1)
1702 return dlength + (s - src); /* count does not include NUL */
1704 #endif /* ! HAVE_STRLCPY */
1709 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1711 * Converts all upper case ASCII letters to lower case ASCII letters.
1713 * Return value: a newly-allocated string, with all the upper case
1714 * characters in @str converted to lower case, with
1715 * semantics that exactly match g_ascii_tolower(). (Note
1716 * that this is unlike the old g_strdown(), which modified
1717 * the string in place.)
1720 g_ascii_strdown (const gchar *str,
1725 g_return_val_if_fail (str != NULL, NULL);
1730 result = g_strndup (str, len);
1731 for (s = result; *s; s++)
1732 *s = g_ascii_tolower (*s);
1740 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1742 * Converts all lower case ASCII letters to upper case ASCII letters.
1744 * Return value: a newly allocated string, with all the lower case
1745 * characters in @str converted to upper case, with
1746 * semantics that exactly match g_ascii_toupper(). (Note
1747 * that this is unlike the old g_strup(), which modified
1748 * the string in place.)
1751 g_ascii_strup (const gchar *str,
1756 g_return_val_if_fail (str != NULL, NULL);
1761 result = g_strndup (str, len);
1762 for (s = result; *s; s++)
1763 *s = g_ascii_toupper (*s);
1770 * @string: the string to convert.
1772 * Converts a string to lower case.
1774 * Return value: the string
1776 * Deprecated:2.2: This function is totally broken for the reasons discussed
1777 * in the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
1781 g_strdown (gchar *string)
1785 g_return_val_if_fail (string != NULL, NULL);
1787 s = (guchar *) string;
1796 return (gchar *) string;
1801 * @string: the string to convert.
1803 * Converts a string to upper case.
1805 * Return value: the string
1807 * Deprecated:2.2: This function is totally broken for the reasons discussed
1808 * in the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
1811 g_strup (gchar *string)
1815 g_return_val_if_fail (string != NULL, NULL);
1817 s = (guchar *) string;
1826 return (gchar *) string;
1831 * @string: the string to reverse
1833 * Reverses all of the bytes in a string. For example,
1834 * <literal>g_strreverse ("abcdef")</literal> will result
1837 * Note that g_strreverse() doesn't work on UTF-8 strings
1838 * containing multibyte characters. For that purpose, use
1839 * g_utf8_strreverse().
1841 * Returns: the same pointer passed in as @string
1844 g_strreverse (gchar *string)
1846 g_return_val_if_fail (string != NULL, NULL);
1850 register gchar *h, *t;
1853 t = string + strlen (string) - 1;
1872 * @c: any character.
1874 * Convert a character to ASCII lower case.
1876 * Unlike the standard C library tolower() function, this only
1877 * recognizes standard ASCII letters and ignores the locale, returning
1878 * all non-ASCII characters unchanged, even if they are lower case
1879 * letters in a particular character set. Also unlike the standard
1880 * library function, this takes and returns a char, not an int, so
1881 * don't call it on %EOF but no need to worry about casting to #guchar
1882 * before passing a possibly non-ASCII character in.
1884 * Return value: the result of converting @c to lower case.
1885 * If @c is not an ASCII upper case letter,
1886 * @c is returned unchanged.
1889 g_ascii_tolower (gchar c)
1891 return g_ascii_isupper (c) ? c - 'A' + 'a' : c;
1896 * @c: any character.
1898 * Convert a character to ASCII upper case.
1900 * Unlike the standard C library toupper() function, this only
1901 * recognizes standard ASCII letters and ignores the locale, returning
1902 * all non-ASCII characters unchanged, even if they are upper case
1903 * letters in a particular character set. Also unlike the standard
1904 * library function, this takes and returns a char, not an int, so
1905 * don't call it on %EOF but no need to worry about casting to #guchar
1906 * before passing a possibly non-ASCII character in.
1908 * Return value: the result of converting @c to upper case.
1909 * If @c is not an ASCII lower case letter,
1910 * @c is returned unchanged.
1913 g_ascii_toupper (gchar c)
1915 return g_ascii_islower (c) ? c - 'a' + 'A' : c;
1919 * g_ascii_digit_value:
1920 * @c: an ASCII character.
1922 * Determines the numeric value of a character as a decimal
1923 * digit. Differs from g_unichar_digit_value() because it takes
1924 * a char, so there's no worry about sign extension if characters
1927 * Return value: If @c is a decimal digit (according to
1928 * g_ascii_isdigit()), its numeric value. Otherwise, -1.
1931 g_ascii_digit_value (gchar c)
1933 if (g_ascii_isdigit (c))
1939 * g_ascii_xdigit_value:
1940 * @c: an ASCII character.
1942 * Determines the numeric value of a character as a hexidecimal
1943 * digit. Differs from g_unichar_xdigit_value() because it takes
1944 * a char, so there's no worry about sign extension if characters
1947 * Return value: If @c is a hex digit (according to
1948 * g_ascii_isxdigit()), its numeric value. Otherwise, -1.
1951 g_ascii_xdigit_value (gchar c)
1953 if (c >= 'A' && c <= 'F')
1954 return c - 'A' + 10;
1955 if (c >= 'a' && c <= 'f')
1956 return c - 'a' + 10;
1957 return g_ascii_digit_value (c);
1961 * g_ascii_strcasecmp:
1962 * @s1: string to compare with @s2.
1963 * @s2: string to compare with @s1.
1965 * Compare two strings, ignoring the case of ASCII characters.
1967 * Unlike the BSD strcasecmp() function, this only recognizes standard
1968 * ASCII letters and ignores the locale, treating all non-ASCII
1969 * bytes as if they are not letters.
1971 * This function should be used only on strings that are known to be
1972 * in encodings where the bytes corresponding to ASCII letters always
1973 * represent themselves. This includes UTF-8 and the ISO-8859-*
1974 * charsets, but not for instance double-byte encodings like the
1975 * Windows Codepage 932, where the trailing bytes of double-byte
1976 * characters include all ASCII letters. If you compare two CP932
1977 * strings using this function, you will get false matches.
1979 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1980 * or a positive value if @s1 > @s2.
1983 g_ascii_strcasecmp (const gchar *s1,
1988 g_return_val_if_fail (s1 != NULL, 0);
1989 g_return_val_if_fail (s2 != NULL, 0);
1993 c1 = (gint)(guchar) TOLOWER (*s1);
1994 c2 = (gint)(guchar) TOLOWER (*s2);
2000 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
2004 * g_ascii_strncasecmp:
2005 * @s1: string to compare with @s2.
2006 * @s2: string to compare with @s1.
2007 * @n: number of characters to compare.
2009 * Compare @s1 and @s2, ignoring the case of ASCII characters and any
2010 * characters after the first @n in each string.
2012 * Unlike the BSD strcasecmp() function, this only recognizes standard
2013 * ASCII letters and ignores the locale, treating all non-ASCII
2014 * characters as if they are not letters.
2016 * The same warning as in g_ascii_strcasecmp() applies: Use this
2017 * function only on strings known to be in encodings where bytes
2018 * corresponding to ASCII letters always represent themselves.
2020 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2021 * or a positive value if @s1 > @s2.
2024 g_ascii_strncasecmp (const gchar *s1,
2030 g_return_val_if_fail (s1 != NULL, 0);
2031 g_return_val_if_fail (s2 != NULL, 0);
2033 while (n && *s1 && *s2)
2036 c1 = (gint)(guchar) TOLOWER (*s1);
2037 c2 = (gint)(guchar) TOLOWER (*s2);
2044 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
2052 * @s2: a string to compare with @s1.
2054 * A case-insensitive string comparison, corresponding to the standard
2055 * strcasecmp() function on platforms which support it.
2057 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2058 * or a positive value if @s1 > @s2.
2060 * Deprecated:2.2: See g_strncasecmp() for a discussion of why this function
2061 * is deprecated and how to replace it.
2064 g_strcasecmp (const gchar *s1,
2067 #ifdef HAVE_STRCASECMP
2068 g_return_val_if_fail (s1 != NULL, 0);
2069 g_return_val_if_fail (s2 != NULL, 0);
2071 return strcasecmp (s1, s2);
2075 g_return_val_if_fail (s1 != NULL, 0);
2076 g_return_val_if_fail (s2 != NULL, 0);
2080 /* According to A. Cox, some platforms have islower's that
2081 * don't work right on non-uppercase
2083 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
2084 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
2090 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
2097 * @s2: a string to compare with @s1.
2098 * @n: the maximum number of characters to compare.
2100 * A case-insensitive string comparison, corresponding to the standard
2101 * strncasecmp() function on platforms which support it.
2102 * It is similar to g_strcasecmp() except it only compares the first @n
2103 * characters of the strings.
2105 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
2106 * or a positive value if @s1 > @s2.
2108 * Deprecated:2.2: The problem with g_strncasecmp() is that it does the
2109 * comparison by calling toupper()/tolower(). These functions are
2110 * locale-specific and operate on single bytes. However, it is impossible
2111 * to handle things correctly from an I18N standpoint by operating on
2112 * bytes, since characters may be multibyte. Thus g_strncasecmp() is
2113 * broken if your string is guaranteed to be ASCII, since it's
2114 * locale-sensitive, and it's broken if your string is localized, since
2115 * it doesn't work on many encodings at all, including UTF-8, EUC-JP,
2118 * There are therefore two replacement functions: g_ascii_strncasecmp(),
2119 * which only works on ASCII and is not locale-sensitive, and
2120 * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8.
2123 g_strncasecmp (const gchar *s1,
2127 #ifdef HAVE_STRNCASECMP
2128 return strncasecmp (s1, s2, n);
2132 g_return_val_if_fail (s1 != NULL, 0);
2133 g_return_val_if_fail (s2 != NULL, 0);
2135 while (n && *s1 && *s2)
2138 /* According to A. Cox, some platforms have islower's that
2139 * don't work right on non-uppercase
2141 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
2142 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
2149 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
2156 g_strdelimit (gchar *string,
2157 const gchar *delimiters,
2162 g_return_val_if_fail (string != NULL, NULL);
2165 delimiters = G_STR_DELIMITERS;
2167 for (c = string; *c; c++)
2169 if (strchr (delimiters, *c))
2177 g_strcanon (gchar *string,
2178 const gchar *valid_chars,
2183 g_return_val_if_fail (string != NULL, NULL);
2184 g_return_val_if_fail (valid_chars != NULL, NULL);
2186 for (c = string; *c; c++)
2188 if (!strchr (valid_chars, *c))
2196 g_strcompress (const gchar *source)
2198 const gchar *p = source, *octal;
2199 gchar *dest = g_malloc (strlen (source) + 1);
2210 g_warning ("g_strcompress: trailing \\");
2212 case '0': case '1': case '2': case '3': case '4':
2213 case '5': case '6': case '7':
2216 while ((p < octal + 3) && (*p >= '0') && (*p <= '7'))
2218 *q = (*q * 8) + (*p - '0');
2239 default: /* Also handles \" and \\ */
2255 g_strescape (const gchar *source,
2256 const gchar *exceptions)
2263 g_return_val_if_fail (source != NULL, NULL);
2265 p = (guchar *) source;
2266 /* Each source byte needs maximally four destination chars (\777) */
2267 q = dest = g_malloc (strlen (source) * 4 + 1);
2269 memset (excmap, 0, 256);
2272 guchar *e = (guchar *) exceptions;
2318 if ((*p < ' ') || (*p >= 0177))
2321 *q++ = '0' + (((*p) >> 6) & 07);
2322 *q++ = '0' + (((*p) >> 3) & 07);
2323 *q++ = '0' + ((*p) & 07);
2337 g_strchug (gchar *string)
2341 g_return_val_if_fail (string != NULL, NULL);
2343 for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
2346 g_memmove (string, start, strlen ((gchar *) start) + 1);
2352 g_strchomp (gchar *string)
2356 g_return_val_if_fail (string != NULL, NULL);
2358 len = strlen (string);
2361 if (g_ascii_isspace ((guchar) string[len]))
2372 * @string: a string to split.
2373 * @delimiter: a string which specifies the places at which to split the string.
2374 * The delimiter is not included in any of the resulting strings, unless
2375 * @max_tokens is reached.
2376 * @max_tokens: the maximum number of pieces to split @string into. If this is
2377 * less than 1, the string is split completely.
2379 * Splits a string into a maximum of @max_tokens pieces, using the given
2380 * @delimiter. If @max_tokens is reached, the remainder of @string is appended
2381 * to the last token.
2383 * As a special case, the result of splitting the empty string "" is an empty
2384 * vector, not a vector containing a single string. The reason for this
2385 * special case is that being able to represent a empty vector is typically
2386 * more useful than consistent handling of empty elements. If you do need
2387 * to represent empty elements, you'll need to check for the empty string
2388 * before calling g_strsplit().
2390 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2391 * g_strfreev() to free it.
2394 g_strsplit (const gchar *string,
2395 const gchar *delimiter,
2398 GSList *string_list = NULL, *slist;
2399 gchar **str_array, *s;
2401 const gchar *remainder;
2403 g_return_val_if_fail (string != NULL, NULL);
2404 g_return_val_if_fail (delimiter != NULL, NULL);
2405 g_return_val_if_fail (delimiter[0] != '\0', NULL);
2408 max_tokens = G_MAXINT;
2411 s = strstr (remainder, delimiter);
2414 gsize delimiter_len = strlen (delimiter);
2416 while (--max_tokens && s)
2420 len = s - remainder;
2421 string_list = g_slist_prepend (string_list,
2422 g_strndup (remainder, len));
2424 remainder = s + delimiter_len;
2425 s = strstr (remainder, delimiter);
2431 string_list = g_slist_prepend (string_list, g_strdup (remainder));
2434 str_array = g_new (gchar*, n + 1);
2436 str_array[n--] = NULL;
2437 for (slist = string_list; slist; slist = slist->next)
2438 str_array[n--] = slist->data;
2440 g_slist_free (string_list);
2447 * @string: The string to be tokenized
2448 * @delimiters: A nul-terminated string containing bytes that are used
2449 * to split the string.
2450 * @max_tokens: The maximum number of tokens to split @string into.
2451 * If this is less than 1, the string is split completely
2453 * Splits @string into a number of tokens not containing any of the characters
2454 * in @delimiter. A token is the (possibly empty) longest string that does not
2455 * contain any of the characters in @delimiters. If @max_tokens is reached, the
2456 * remainder is appended to the last token.
2458 * For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a
2459 * %NULL-terminated vector containing the three strings "abc", "def",
2462 * The result if g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated
2463 * vector containing the four strings "", "def", "ghi", and "".
2465 * As a special case, the result of splitting the empty string "" is an empty
2466 * vector, not a vector containing a single string. The reason for this
2467 * special case is that being able to represent a empty vector is typically
2468 * more useful than consistent handling of empty elements. If you do need
2469 * to represent empty elements, you'll need to check for the empty string
2470 * before calling g_strsplit_set().
2472 * Note that this function works on bytes not characters, so it can't be used
2473 * to delimit UTF-8 strings for anything but ASCII characters.
2475 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2476 * g_strfreev() to free it.
2481 g_strsplit_set (const gchar *string,
2482 const gchar *delimiters,
2485 gboolean delim_table[256];
2486 GSList *tokens, *list;
2489 const gchar *current;
2493 g_return_val_if_fail (string != NULL, NULL);
2494 g_return_val_if_fail (delimiters != NULL, NULL);
2497 max_tokens = G_MAXINT;
2499 if (*string == '\0')
2501 result = g_new (char *, 1);
2506 memset (delim_table, FALSE, sizeof (delim_table));
2507 for (s = delimiters; *s != '\0'; ++s)
2508 delim_table[*(guchar *)s] = TRUE;
2513 s = current = string;
2516 if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens)
2518 token = g_strndup (current, s - current);
2519 tokens = g_slist_prepend (tokens, token);
2528 token = g_strndup (current, s - current);
2529 tokens = g_slist_prepend (tokens, token);
2532 result = g_new (gchar *, n_tokens + 1);
2534 result[n_tokens] = NULL;
2535 for (list = tokens; list != NULL; list = list->next)
2536 result[--n_tokens] = list->data;
2538 g_slist_free (tokens);
2545 * @str_array: a %NULL-terminated array of strings to free.
2547 * Frees a %NULL-terminated array of strings, and the array itself.
2548 * If called on a %NULL value, g_strfreev() simply returns.
2551 g_strfreev (gchar **str_array)
2557 for (i = 0; str_array[i] != NULL; i++)
2558 g_free (str_array[i]);
2566 * @str_array: %NULL-terminated array of strings.
2568 * Copies %NULL-terminated array of strings. The copy is a deep copy;
2569 * the new array should be freed by first freeing each string, then
2570 * the array itself. g_strfreev() does this for you. If called
2571 * on a %NULL value, g_strdupv() simply returns %NULL.
2573 * Return value: a new %NULL-terminated array of strings.
2576 g_strdupv (gchar **str_array)
2584 while (str_array[i])
2587 retval = g_new (gchar*, i + 1);
2590 while (str_array[i])
2592 retval[i] = g_strdup (str_array[i]);
2605 * @separator: a string to insert between each of the strings, or %NULL
2606 * @str_array: a %NULL-terminated array of strings to join
2608 * Joins a number of strings together to form one long string, with the
2609 * optional @separator inserted between each of them. The returned string
2610 * should be freed with g_free().
2612 * Returns: a newly-allocated string containing all of the strings joined
2613 * together, with @separator between them
2616 g_strjoinv (const gchar *separator,
2622 g_return_val_if_fail (str_array != NULL, NULL);
2624 if (separator == NULL)
2631 gsize separator_len;
2633 separator_len = strlen (separator);
2634 /* First part, getting length */
2635 len = 1 + strlen (str_array[0]);
2636 for (i = 1; str_array[i] != NULL; i++)
2637 len += strlen (str_array[i]);
2638 len += separator_len * (i - 1);
2640 /* Second part, building string */
2641 string = g_new (gchar, len);
2642 ptr = g_stpcpy (string, *str_array);
2643 for (i = 1; str_array[i] != NULL; i++)
2645 ptr = g_stpcpy (ptr, separator);
2646 ptr = g_stpcpy (ptr, str_array[i]);
2650 string = g_strdup ("");
2657 * @separator: a string to insert between each of the strings, or %NULL
2658 * @Varargs: a %NULL-terminated list of strings to join
2660 * Joins a number of strings together to form one long string, with the
2661 * optional @separator inserted between each of them. The returned string
2662 * should be freed with g_free().
2664 * Returns: a newly-allocated string containing all of the strings joined
2665 * together, with @separator between them
2668 g_strjoin (const gchar *separator,
2674 gsize separator_len;
2677 if (separator == NULL)
2680 separator_len = strlen (separator);
2682 va_start (args, separator);
2684 s = va_arg (args, gchar*);
2688 /* First part, getting length */
2689 len = 1 + strlen (s);
2691 s = va_arg (args, gchar*);
2694 len += separator_len + strlen (s);
2695 s = va_arg (args, gchar*);
2699 /* Second part, building string */
2700 string = g_new (gchar, len);
2702 va_start (args, separator);
2704 s = va_arg (args, gchar*);
2705 ptr = g_stpcpy (string, s);
2707 s = va_arg (args, gchar*);
2710 ptr = g_stpcpy (ptr, separator);
2711 ptr = g_stpcpy (ptr, s);
2712 s = va_arg (args, gchar*);
2716 string = g_strdup ("");
2726 * @haystack: a string.
2727 * @haystack_len: the maximum length of @haystack. Note that -1 is
2728 * a valid length, if @haystack is nul-terminated, meaning it will
2729 * search through the whole string.
2730 * @needle: the string to search for.
2732 * Searches the string @haystack for the first occurrence
2733 * of the string @needle, limiting the length of the search
2736 * Return value: a pointer to the found occurrence, or
2737 * %NULL if not found.
2740 g_strstr_len (const gchar *haystack,
2741 gssize haystack_len,
2742 const gchar *needle)
2744 g_return_val_if_fail (haystack != NULL, NULL);
2745 g_return_val_if_fail (needle != NULL, NULL);
2747 if (haystack_len < 0)
2748 return strstr (haystack, needle);
2751 const gchar *p = haystack;
2752 gsize needle_len = strlen (needle);
2756 if (needle_len == 0)
2757 return (gchar *)haystack;
2759 if (haystack_len < needle_len)
2762 end = haystack + haystack_len - needle_len;
2764 while (p <= end && *p)
2766 for (i = 0; i < needle_len; i++)
2767 if (p[i] != needle[i])
2782 * @haystack: a nul-terminated string.
2783 * @needle: the nul-terminated string to search for.
2785 * Searches the string @haystack for the last occurrence
2786 * of the string @needle.
2788 * Return value: a pointer to the found occurrence, or
2789 * %NULL if not found.
2792 g_strrstr (const gchar *haystack,
2793 const gchar *needle)
2800 g_return_val_if_fail (haystack != NULL, NULL);
2801 g_return_val_if_fail (needle != NULL, NULL);
2803 needle_len = strlen (needle);
2804 haystack_len = strlen (haystack);
2806 if (needle_len == 0)
2807 return (gchar *)haystack;
2809 if (haystack_len < needle_len)
2812 p = haystack + haystack_len - needle_len;
2814 while (p >= haystack)
2816 for (i = 0; i < needle_len; i++)
2817 if (p[i] != needle[i])
2831 * @haystack: a nul-terminated string.
2832 * @haystack_len: the maximum length of @haystack.
2833 * @needle: the nul-terminated string to search for.
2835 * Searches the string @haystack for the last occurrence
2836 * of the string @needle, limiting the length of the search
2839 * Return value: a pointer to the found occurrence, or
2840 * %NULL if not found.
2843 g_strrstr_len (const gchar *haystack,
2844 gssize haystack_len,
2845 const gchar *needle)
2847 g_return_val_if_fail (haystack != NULL, NULL);
2848 g_return_val_if_fail (needle != NULL, NULL);
2850 if (haystack_len < 0)
2851 return g_strrstr (haystack, needle);
2854 gsize needle_len = strlen (needle);
2855 const gchar *haystack_max = haystack + haystack_len;
2856 const gchar *p = haystack;
2859 while (p < haystack_max && *p)
2862 if (p < haystack + needle_len)
2867 while (p >= haystack)
2869 for (i = 0; i < needle_len; i++)
2870 if (p[i] != needle[i])
2886 * @str: a nul-terminated string.
2887 * @suffix: the nul-terminated suffix to look for.
2889 * Looks whether the string @str ends with @suffix.
2891 * Return value: %TRUE if @str end with @suffix, %FALSE otherwise.
2896 g_str_has_suffix (const gchar *str,
2897 const gchar *suffix)
2902 g_return_val_if_fail (str != NULL, FALSE);
2903 g_return_val_if_fail (suffix != NULL, FALSE);
2905 str_len = strlen (str);
2906 suffix_len = strlen (suffix);
2908 if (str_len < suffix_len)
2911 return strcmp (str + str_len - suffix_len, suffix) == 0;
2916 * @str: a nul-terminated string.
2917 * @prefix: the nul-terminated prefix to look for.
2919 * Looks whether the string @str begins with @prefix.
2921 * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise.
2926 g_str_has_prefix (const gchar *str,
2927 const gchar *prefix)
2932 g_return_val_if_fail (str != NULL, FALSE);
2933 g_return_val_if_fail (prefix != NULL, FALSE);
2935 str_len = strlen (str);
2936 prefix_len = strlen (prefix);
2938 if (str_len < prefix_len)
2941 return strncmp (str, prefix, prefix_len) == 0;
2948 * @msgval: another string
2950 * An auxiliary function for gettext() support (see Q_()).
2952 * Return value: @msgval, unless @msgval is identical to @msgid and contains
2953 * a '|' character, in which case a pointer to the substring of msgid after
2954 * the first '|' character is returned.
2958 G_CONST_RETURN gchar *
2959 g_strip_context (const gchar *msgid,
2960 const gchar *msgval)
2962 if (msgval == msgid)
2964 const char *c = strchr (msgid, '|');
2975 * @str_array: a %NULL-terminated array of strings.
2977 * Returns the length of the given %NULL-terminated
2978 * string array @str_array.
2980 * Return value: length of @str_array.
2985 g_strv_length (gchar **str_array)
2989 g_return_val_if_fail (str_array != NULL, 0);
2991 while (str_array[i])
3000 * @domain: the translation domain to use, or %NULL to use
3001 * the domain set with textdomain()
3002 * @msgctxtid: a combined message context and message id, separated
3003 * by a \004 character
3004 * @msgidoffset: the offset of the message id in @msgctxid
3006 * This function is a variant of g_dgettext() which supports
3007 * a disambiguating message context. GNU gettext uses the
3008 * '\004' character to separate the message context and
3009 * message id in @msgctxtid.
3010 * If 0 is passed as @msgidoffset, this function will fall back to
3011 * trying to use the deprecated convention of using "|" as a separation
3014 * This uses g_dgettext() internally. See that functions for differences
3015 * with dgettext() proper.
3017 * Applications should normally not use this function directly,
3018 * but use the C_() macro for translations with context.
3020 * Returns: The translated string
3024 G_CONST_RETURN gchar *
3025 g_dpgettext (const gchar *domain,
3026 const gchar *msgctxtid,
3029 const gchar *translation;
3032 translation = g_dgettext (domain, msgctxtid);
3034 if (translation == msgctxtid)
3036 if (msgidoffset > 0)
3037 return msgctxtid + msgidoffset;
3039 sep = strchr (msgctxtid, '|');
3043 /* try with '\004' instead of '|', in case
3044 * xgettext -kQ_:1g was used
3046 gchar *tmp = g_alloca (strlen (msgctxtid) + 1);
3047 strcpy (tmp, msgctxtid);
3048 tmp[sep - msgctxtid] = '\004';
3050 translation = g_dgettext (domain, tmp);
3052 if (translation == tmp)
3060 /* This function is taken from gettext.h
3061 * GNU gettext uses '\004' to separate context and msgid in .mo files.
3065 * @domain: the translation domain to use, or %NULL to use
3066 * the domain set with textdomain()
3067 * @context: the message context
3068 * @msgid: the message
3070 * This function is a variant of g_dgettext() which supports
3071 * a disambiguating message context. GNU gettext uses the
3072 * '\004' character to separate the message context and
3073 * message id in @msgctxtid.
3075 * This uses g_dgettext() internally. See that functions for differences
3076 * with dgettext() proper.
3078 * This function differs from C_() in that it is not a macro and
3079 * thus you may use non-string-literals as context and msgid arguments.
3081 * Returns: The translated string
3085 G_CONST_RETURN char *
3086 g_dpgettext2 (const char *domain,
3087 const char *msgctxt,
3090 size_t msgctxt_len = strlen (msgctxt) + 1;
3091 size_t msgid_len = strlen (msgid) + 1;
3092 const char *translation;
3095 msg_ctxt_id = g_alloca (msgctxt_len + msgid_len);
3097 memcpy (msg_ctxt_id, msgctxt, msgctxt_len - 1);
3098 msg_ctxt_id[msgctxt_len - 1] = '\004';
3099 memcpy (msg_ctxt_id + msgctxt_len, msgid, msgid_len);
3101 translation = g_dgettext (domain, msg_ctxt_id);
3103 if (translation == msg_ctxt_id)
3105 /* try the old way of doing message contexts, too */
3106 msg_ctxt_id[msgctxt_len - 1] = '|';
3107 translation = g_dgettext (domain, msg_ctxt_id);
3109 if (translation == msg_ctxt_id)
3117 _g_dgettext_should_translate (void)
3119 static gsize translate = 0;
3121 SHOULD_TRANSLATE = 1,
3122 SHOULD_NOT_TRANSLATE = 2
3125 if (G_UNLIKELY (g_once_init_enter (&translate)))
3127 gboolean should_translate = TRUE;
3129 const char *default_domain = textdomain (NULL);
3130 const char *translator_comment = gettext ("");
3132 const char *translate_locale = setlocale (LC_MESSAGES, NULL);
3134 const char *translate_locale = g_win32_getlocale ();
3136 /* We should NOT translate only if all the following hold:
3137 * - user has called textdomain() and set textdomain to non-default
3138 * - default domain has no translations
3139 * - locale does not start with "en_" and is not "C"
3142 * - If text domain is still the default domain, maybe user calls
3143 * it later. Continue with old behavior of translating.
3144 * - If locale starts with "en_", we can continue using the
3145 * translations even if the app doesn't have translations for
3146 * this locale. That is, en_UK and en_CA for example.
3147 * - If locale is "C", maybe user calls setlocale(LC_ALL,"") later.
3148 * Continue with old behavior of translating.
3150 if (0 != strcmp (default_domain, "messages") &&
3151 '\0' == *translator_comment &&
3152 0 != strncmp (translate_locale, "en_", 3) &&
3153 0 != strcmp (translate_locale, "C"))
3154 should_translate = FALSE;
3156 g_once_init_leave (&translate,
3159 SHOULD_NOT_TRANSLATE);
3162 return translate == SHOULD_TRANSLATE;
3167 * @domain: the translation domain to use, or %NULL to use
3168 * the domain set with textdomain()
3169 * @msgid: message to translate
3171 * This function is a wrapper of dgettext() which does not translate
3172 * the message if the default domain as set with textdomain() has no
3173 * translations for the current locale.
3175 * The advantage of using this function over dgettext() proper is that
3176 * libraries using this function (like GTK+) will not use translations
3177 * if the application using the library does not have translations for
3178 * the current locale. This results in a consistent English-only
3179 * interface instead of one having partial translations. For this
3180 * feature to work, the call to textdomain() and setlocale() should
3181 * precede any g_dgettext() invocations. For GTK+, it means calling
3182 * textdomain() before gtk_init or its variants.
3184 * This function disables translations if and only if upon its first
3185 * call all the following conditions hold:
3187 * <listitem>@domain is not %NULL</listitem>
3188 * <listitem>textdomain() has been called to set a default text domain</listitem>
3189 * <listitem>there is no translations available for the default text domain
3190 * and the current locale</listitem>
3191 * <listitem>current locale is not "C" or any English locales (those
3192 * starting with "en_")</listitem>
3195 * Note that this behavior may not be desired for example if an application
3196 * has its untranslated messages in a language other than English. In those
3197 * cases the application should call textdomain() after initializing GTK+.
3199 * Applications should normally not use this function directly,
3200 * but use the _() macro for translations.
3202 * Returns: The translated string
3206 G_CONST_RETURN gchar *
3207 g_dgettext (const gchar *domain,
3210 if (domain && G_UNLIKELY (!_g_dgettext_should_translate ()))
3213 return dgettext (domain, msgid);
3218 * @domain: the translation domain to use, or %NULL to use
3219 * the domain set with textdomain()
3220 * @msgid: message to translate
3221 * @msgid_plural: plural form of the message
3222 * @n: the quantity for which translation is needed
3224 * This function is a wrapper of dngettext() which does not translate
3225 * the message if the default domain as set with textdomain() has no
3226 * translations for the current locale.
3228 * See g_dgettext() for details of how this differs from dngettext()
3231 * Returns: The translated string
3235 G_CONST_RETURN gchar *
3236 g_dngettext (const gchar *domain,
3238 const gchar *msgid_plural,
3241 if (domain && G_UNLIKELY (!_g_dgettext_should_translate ()))
3242 return n == 1 ? msgid : msgid_plural;
3244 return dngettext (domain, msgid, msgid_plural, n);
3248 #define __G_STRFUNCS_C__
3249 #include "galiasdef.c"