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"
54 /* do not include <unistd.h> in this place since it
55 * interferes with g_strsignal() on some OSes
58 static const guint16 ascii_table_data[256] = {
59 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
60 0x004, 0x104, 0x104, 0x004, 0x104, 0x104, 0x004, 0x004,
61 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
62 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
63 0x140, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
64 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
65 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459,
66 0x459, 0x459, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
67 0x0d0, 0x653, 0x653, 0x653, 0x653, 0x653, 0x653, 0x253,
68 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
69 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
70 0x253, 0x253, 0x253, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
71 0x0d0, 0x473, 0x473, 0x473, 0x473, 0x473, 0x473, 0x073,
72 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
73 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
74 0x073, 0x073, 0x073, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x004
75 /* the upper 128 are all zeroes */
78 const guint16 * const g_ascii_table = ascii_table_data;
81 g_strdup (const gchar *str)
88 length = strlen (str) + 1;
89 new_str = g_new (char, length);
90 memcpy (new_str, str, length);
99 g_memdup (gconstpointer mem,
106 new_mem = g_malloc (byte_size);
107 memcpy (new_mem, mem, byte_size);
116 g_strndup (const gchar *str,
123 new_str = g_new (gchar, n + 1);
124 strncpy (new_str, str, n);
134 g_strnfill (gsize length,
139 str = g_new (gchar, length + 1);
140 memset (str, (guchar)fill_char, length);
148 * @dest: destination buffer.
149 * @src: source string.
151 * Copies a nul-terminated string into the dest buffer, include the
152 * trailing nul, and return a pointer to the trailing nul byte.
153 * This is useful for concatenating multiple strings together
154 * without having to repeatedly scan for the end.
156 * Return value: a pointer to trailing nul byte.
159 g_stpcpy (gchar *dest,
163 g_return_val_if_fail (dest != NULL, NULL);
164 g_return_val_if_fail (src != NULL, NULL);
165 return stpcpy (dest, src);
167 register gchar *d = dest;
168 register const gchar *s = src;
170 g_return_val_if_fail (dest != NULL, NULL);
171 g_return_val_if_fail (src != NULL, NULL);
174 while (*s++ != '\0');
181 g_strdup_vprintf (const gchar *format,
184 gchar *string = NULL;
186 g_vasprintf (&string, format, args);
192 g_strdup_printf (const gchar *format,
198 va_start (args, format);
199 buffer = g_strdup_vprintf (format, args);
206 g_strconcat (const gchar *string1, ...)
217 l = 1 + strlen (string1);
218 va_start (args, string1);
219 s = va_arg (args, gchar*);
223 s = va_arg (args, gchar*);
227 concat = g_new (gchar, l);
230 ptr = g_stpcpy (ptr, string1);
231 va_start (args, string1);
232 s = va_arg (args, gchar*);
235 ptr = g_stpcpy (ptr, s);
236 s = va_arg (args, gchar*);
245 * @nptr: the string to convert to a numeric value.
246 * @endptr: if non-%NULL, it returns the character after
247 * the last character used in the conversion.
249 * Converts a string to a #gdouble value.
250 * It calls the standard strtod() function to handle the conversion, but
251 * if the string is not completely converted it attempts the conversion
252 * again with g_ascii_strtod(), and returns the best match.
254 * This function should seldomly be used. The normal situation when reading
255 * numbers not for human consumption is to use g_ascii_strtod(). Only when
256 * you know that you must expect both locale formatted and C formatted numbers
257 * should you use this. Make sure that you don't pass strings such as comma
258 * separated lists of values, since the commas may be interpreted as a decimal
259 * point in some locales, causing unexpected results.
261 * Return value: the #gdouble value.
264 g_strtod (const gchar *nptr,
272 g_return_val_if_fail (nptr != NULL, 0);
277 val_1 = strtod (nptr, &fail_pos_1);
279 if (fail_pos_1 && fail_pos_1[0] != 0)
280 val_2 = g_ascii_strtod (nptr, &fail_pos_2);
282 if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
285 *endptr = fail_pos_1;
291 *endptr = fail_pos_2;
298 * @nptr: the string to convert to a numeric value.
299 * @endptr: if non-%NULL, it returns the character after
300 * the last character used in the conversion.
302 * Converts a string to a #gdouble value.
303 * This function behaves like the standard strtod() function
304 * does in the C locale. It does this without actually
305 * changing the current locale, since that would not be
308 * This function is typically used when reading configuration
309 * files or other non-user input that should be locale independent.
310 * To handle input from the user you should normally use the
311 * locale-sensitive system strtod() function.
313 * To convert from a #gdouble to a string in a locale-insensitive
314 * way, use g_ascii_dtostr().
316 * If the correct value would cause overflow, plus or minus %HUGE_VAL
317 * is returned (according to the sign of the value), and %ERANGE is
318 * stored in %errno. If the correct value would cause underflow,
319 * zero is returned and %ERANGE is stored in %errno.
321 * This function resets %errno before calling strtod() so that
322 * you can reliably detect overflow and underflow.
324 * Return value: the #gdouble value.
327 g_ascii_strtod (const gchar *nptr,
332 struct lconv *locale_data;
333 const char *decimal_point;
334 int decimal_point_len;
335 const char *p, *decimal_point_pos;
336 const char *end = NULL; /* Silence gcc */
338 g_return_val_if_fail (nptr != NULL, 0);
342 locale_data = localeconv ();
343 decimal_point = locale_data->decimal_point;
344 decimal_point_len = strlen (decimal_point);
346 g_assert (decimal_point_len != 0);
348 decimal_point_pos = NULL;
349 if (decimal_point[0] != '.' ||
350 decimal_point[1] != 0)
353 /* Skip leading space */
354 while (g_ascii_isspace (*p))
357 /* Skip leading optional sign */
358 if (*p == '+' || *p == '-')
362 (p[1] == 'x' || p[1] == 'X'))
365 /* HEX - find the (optional) decimal point */
367 while (g_ascii_isxdigit (*p))
372 decimal_point_pos = p++;
374 while (g_ascii_isxdigit (*p))
377 if (*p == 'p' || *p == 'P')
379 if (*p == '+' || *p == '-')
381 while (g_ascii_isdigit (*p))
387 while (g_ascii_isdigit (*p))
392 decimal_point_pos = p++;
394 while (g_ascii_isdigit (*p))
397 if (*p == 'e' || *p == 'E')
399 if (*p == '+' || *p == '-')
401 while (g_ascii_isdigit (*p))
405 /* For the other cases, we need not convert the decimal point */
409 /* Set errno to zero, so that we can distinguish zero results
413 if (decimal_point_pos)
417 /* We need to convert the '.' to the locale specific decimal point */
418 copy = g_malloc (end - nptr + 1 + decimal_point_len);
421 memcpy (c, nptr, decimal_point_pos - nptr);
422 c += decimal_point_pos - nptr;
423 memcpy (c, decimal_point, decimal_point_len);
424 c += decimal_point_len;
425 memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
426 c += end - (decimal_point_pos + 1);
429 val = strtod (copy, &fail_pos);
433 if (fail_pos - copy > decimal_point_pos - nptr)
434 fail_pos = (char *)nptr + (fail_pos - copy) - (decimal_point_len - 1);
436 fail_pos = (char *)nptr + (fail_pos - copy);
442 else if (decimal_point[0] != '.' ||
443 decimal_point[1] != 0)
447 copy = g_malloc (end - (char *)nptr + 1);
448 memcpy (copy, nptr, end - nptr);
449 *(copy + (end - (char *)nptr)) = 0;
451 val = strtod (copy, &fail_pos);
455 fail_pos = (char *)nptr + (fail_pos - copy);
462 val = strtod (nptr, &fail_pos);
474 * @buffer: A buffer to place the resulting string in
475 * @buf_len: The length of the buffer.
476 * @d: The #gdouble to convert
478 * Converts a #gdouble to a string, using the '.' as
481 * This functions generates enough precision that converting
482 * the string back using g_ascii_strtod() gives the same machine-number
483 * (on machines with IEEE compatible 64bit doubles). It is
484 * guaranteed that the size of the resulting string will never
485 * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes.
487 * Return value: The pointer to the buffer with the converted string.
490 g_ascii_dtostr (gchar *buffer,
494 return g_ascii_formatd (buffer, buf_len, "%.17g", d);
499 * @buffer: A buffer to place the resulting string in
500 * @buf_len: The length of the buffer.
501 * @format: The printf()-style format to use for the
502 * code to use for converting.
503 * @d: The #gdouble to convert
505 * Converts a #gdouble to a string, using the '.' as
506 * decimal point. To format the number you pass in
507 * a printf()-style format string. Allowed conversion
508 * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
510 * If you just want to want to serialize the value into a
511 * string, use g_ascii_dtostr().
513 * Return value: The pointer to the buffer with the converted string.
516 g_ascii_formatd (gchar *buffer,
521 struct lconv *locale_data;
522 const char *decimal_point;
523 int decimal_point_len;
528 g_return_val_if_fail (buffer != NULL, NULL);
529 g_return_val_if_fail (format[0] == '%', NULL);
530 g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL);
532 format_char = format[strlen (format) - 1];
534 g_return_val_if_fail (format_char == 'e' || format_char == 'E' ||
535 format_char == 'f' || format_char == 'F' ||
536 format_char == 'g' || format_char == 'G',
539 if (format[0] != '%')
542 if (strpbrk (format + 1, "'l%"))
545 if (!(format_char == 'e' || format_char == 'E' ||
546 format_char == 'f' || format_char == 'F' ||
547 format_char == 'g' || format_char == 'G'))
551 _g_snprintf (buffer, buf_len, format, d);
553 locale_data = localeconv ();
554 decimal_point = locale_data->decimal_point;
555 decimal_point_len = strlen (decimal_point);
557 g_assert (decimal_point_len != 0);
559 if (decimal_point[0] != '.' ||
560 decimal_point[1] != 0)
564 if (*p == '+' || *p == '-')
567 while (isdigit ((guchar)*p))
570 if (strncmp (p, decimal_point, decimal_point_len) == 0)
574 if (decimal_point_len > 1) {
575 rest_len = strlen (p + (decimal_point_len-1));
576 memmove (p, p + (decimal_point_len-1),
589 * @nptr: the string to convert to a numeric value.
590 * @endptr: if non-%NULL, it returns the character after
591 * the last character used in the conversion.
592 * @base: to be used for the conversion, 2..36 or 0
594 * Converts a string to a #guint64 value.
595 * This function behaves like the standard strtoull() function
596 * does in the C locale. It does this without actually
597 * changing the current locale, since that would not be
600 * This function is typically used when reading configuration
601 * files or other non-user input that should be locale independent.
602 * To handle input from the user you should normally use the
603 * locale-sensitive system strtoull() function.
605 * If the correct value would cause overflow, %G_MAXUINT64
606 * is returned, and %ERANGE is stored in %errno.
608 * Return value: the #guint64 value.
613 g_ascii_strtoull (const gchar *nptr,
617 /* this code is based on on the strtol(3) code from GNU libc released under
618 * the GNU Lesser General Public License.
620 * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
621 * Free Software Foundation, Inc.
623 #define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
624 (c) == '\r' || (c) == '\t' || (c) == '\v')
625 #define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z')
626 #define ISLOWER(c) ((c) >= 'a' && (c) <= 'z')
627 #define ISALPHA(c) (ISUPPER (c) || ISLOWER (c))
628 #define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c))
629 #define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c))
630 gboolean negative, overflow;
634 const gchar *s, *save;
637 g_return_val_if_fail (nptr != NULL, 0);
639 if (base == 1 || base > 36)
647 /* Skip white space. */
653 /* Check for a sign. */
663 /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
666 if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X')
677 /* Save the pointer so we can check later if anything happened. */
679 cutoff = G_MAXUINT64 / base;
680 cutlim = G_MAXUINT64 % base;
687 if (c >= '0' && c <= '9')
689 else if (ISALPHA (c))
690 c = TOUPPER (c) - 'A' + 10;
695 /* Check for overflow. */
696 if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
705 /* Check if anything actually happened. */
709 /* Store in ENDPTR the address of one character
710 past the last character we converted. */
712 *endptr = (gchar*) s;
720 /* Return the result of the appropriate sign. */
721 return negative ? -ui64 : ui64;
724 /* We must handle a special case here: the base is 0 or 16 and the
725 first two characters are '0' and 'x', but the rest are no
726 hexadecimal digits. This is no error case. We return 0 and
727 ENDPTR points to the `x`. */
730 if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
732 *endptr = (gchar*) &save[-1];
734 /* There was no number to convert. */
735 *endptr = (gchar*) nptr;
741 G_CONST_RETURN gchar*
742 g_strerror (gint errnum)
744 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
746 int saved_errno = errno;
749 const char *msg_locale;
751 msg_locale = strerror (errnum);
752 if (g_get_charset (NULL))
759 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
762 /* Stick in the quark table so that we can return a static result
764 GQuark msg_quark = g_quark_from_string (msg_utf8);
767 msg_utf8 = (gchar *) g_quark_to_string (msg_quark);
776 case E2BIG: return "argument list too long";
779 case EACCES: return "permission denied";
782 case EADDRINUSE: return "address already in use";
785 case EADDRNOTAVAIL: return "can't assign requested address";
788 case EADV: return "advertise error";
791 case EAFNOSUPPORT: return "address family not supported by protocol family";
794 case EAGAIN: return "try again";
797 case EALIGN: return "EALIGN";
800 case EALREADY: return "operation already in progress";
803 case EBADE: return "bad exchange descriptor";
806 case EBADF: return "bad file number";
809 case EBADFD: return "file descriptor in bad state";
812 case EBADMSG: return "not a data message";
815 case EBADR: return "bad request descriptor";
818 case EBADRPC: return "RPC structure is bad";
821 case EBADRQC: return "bad request code";
824 case EBADSLT: return "invalid slot";
827 case EBFONT: return "bad font file format";
830 case EBUSY: return "mount device busy";
833 case ECHILD: return "no children";
836 case ECHRNG: return "channel number out of range";
839 case ECOMM: return "communication error on send";
842 case ECONNABORTED: return "software caused connection abort";
845 case ECONNREFUSED: return "connection refused";
848 case ECONNRESET: return "connection reset by peer";
850 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
851 case EDEADLK: return "resource deadlock avoided";
854 case EDEADLOCK: return "resource deadlock avoided";
857 case EDESTADDRREQ: return "destination address required";
860 case EDIRTY: return "mounting a dirty fs w/o force";
863 case EDOM: return "math argument out of range";
866 case EDOTDOT: return "cross mount point";
869 case EDQUOT: return "disk quota exceeded";
872 case EDUPPKG: return "duplicate package name";
875 case EEXIST: return "file already exists";
878 case EFAULT: return "bad address in system call argument";
881 case EFBIG: return "file too large";
884 case EHOSTDOWN: return "host is down";
887 case EHOSTUNREACH: return "host is unreachable";
890 case EIDRM: return "identifier removed";
893 case EINIT: return "initialization error";
896 case EINPROGRESS: return "operation now in progress";
899 case EINTR: return "interrupted system call";
902 case EINVAL: return "invalid argument";
905 case EIO: return "I/O error";
908 case EISCONN: return "socket is already connected";
911 case EISDIR: return "is a directory";
914 case EISNAM: return "is a name file";
917 case ELBIN: return "ELBIN";
920 case EL2HLT: return "level 2 halted";
923 case EL2NSYNC: return "level 2 not synchronized";
926 case EL3HLT: return "level 3 halted";
929 case EL3RST: return "level 3 reset";
932 case ELIBACC: return "can not access a needed shared library";
935 case ELIBBAD: return "accessing a corrupted shared library";
938 case ELIBEXEC: return "can not exec a shared library directly";
941 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
944 case ELIBSCN: return ".lib section in a.out corrupted";
947 case ELNRNG: return "link number out of range";
950 case ELOOP: return "too many levels of symbolic links";
953 case EMFILE: return "too many open files";
956 case EMLINK: return "too many links";
959 case EMSGSIZE: return "message too long";
962 case EMULTIHOP: return "multihop attempted";
965 case ENAMETOOLONG: return "file name too long";
968 case ENAVAIL: return "not available";
971 case ENET: return "ENET";
974 case ENETDOWN: return "network is down";
977 case ENETRESET: return "network dropped connection on reset";
980 case ENETUNREACH: return "network is unreachable";
983 case ENFILE: return "file table overflow";
986 case ENOANO: return "anode table overflow";
988 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
989 case ENOBUFS: return "no buffer space available";
992 case ENOCSI: return "no CSI structure available";
995 case ENODATA: return "no data available";
998 case ENODEV: return "no such device";
1001 case ENOENT: return "no such file or directory";
1004 case ENOEXEC: return "exec format error";
1007 case ENOLCK: return "no locks available";
1010 case ENOLINK: return "link has be severed";
1013 case ENOMEM: return "not enough memory";
1016 case ENOMSG: return "no message of desired type";
1019 case ENONET: return "machine is not on the network";
1022 case ENOPKG: return "package not installed";
1025 case ENOPROTOOPT: return "bad proocol option";
1028 case ENOSPC: return "no space left on device";
1031 case ENOSR: return "out of stream resources";
1034 case ENOSTR: return "not a stream device";
1037 case ENOSYM: return "unresolved symbol name";
1040 case ENOSYS: return "function not implemented";
1043 case ENOTBLK: return "block device required";
1046 case ENOTCONN: return "socket is not connected";
1049 case ENOTDIR: return "not a directory";
1052 case ENOTEMPTY: return "directory not empty";
1055 case ENOTNAM: return "not a name file";
1058 case ENOTSOCK: return "socket operation on non-socket";
1061 case ENOTTY: return "inappropriate device for ioctl";
1064 case ENOTUNIQ: return "name not unique on network";
1067 case ENXIO: return "no such device or address";
1070 case EOPNOTSUPP: return "operation not supported on socket";
1073 case EPERM: return "not owner";
1076 case EPFNOSUPPORT: return "protocol family not supported";
1079 case EPIPE: return "broken pipe";
1082 case EPROCLIM: return "too many processes";
1085 case EPROCUNAVAIL: return "bad procedure for program";
1087 #ifdef EPROGMISMATCH
1088 case EPROGMISMATCH: return "program version wrong";
1091 case EPROGUNAVAIL: return "RPC program not available";
1094 case EPROTO: return "protocol error";
1096 #ifdef EPROTONOSUPPORT
1097 case EPROTONOSUPPORT: return "protocol not suppored";
1100 case EPROTOTYPE: return "protocol wrong type for socket";
1103 case ERANGE: return "math result unrepresentable";
1105 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
1106 case EREFUSED: return "EREFUSED";
1109 case EREMCHG: return "remote address changed";
1112 case EREMDEV: return "remote device";
1115 case EREMOTE: return "pathname hit remote file system";
1118 case EREMOTEIO: return "remote i/o error";
1120 #ifdef EREMOTERELEASE
1121 case EREMOTERELEASE: return "EREMOTERELEASE";
1124 case EROFS: return "read-only file system";
1127 case ERPCMISMATCH: return "RPC version is wrong";
1130 case ERREMOTE: return "object is remote";
1133 case ESHUTDOWN: return "can't send afer socket shutdown";
1135 #ifdef ESOCKTNOSUPPORT
1136 case ESOCKTNOSUPPORT: return "socket type not supported";
1139 case ESPIPE: return "invalid seek";
1142 case ESRCH: return "no such process";
1145 case ESRMNT: return "srmount error";
1148 case ESTALE: return "stale remote file handle";
1151 case ESUCCESS: return "Error 0";
1154 case ETIME: return "timer expired";
1157 case ETIMEDOUT: return "connection timed out";
1160 case ETOOMANYREFS: return "too many references: can't splice";
1163 case ETXTBSY: return "text file or pseudo-device busy";
1166 case EUCLEAN: return "structure needs cleaning";
1169 case EUNATCH: return "protocol driver not attached";
1172 case EUSERS: return "too many users";
1175 case EVERSION: return "version mismatch";
1177 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
1178 case EWOULDBLOCK: return "operation would block";
1181 case EXDEV: return "cross-domain link";
1184 case EXFULL: return "message tables full";
1187 #else /* NO_SYS_ERRLIST */
1188 extern int sys_nerr;
1189 extern char *sys_errlist[];
1191 if ((errnum > 0) && (errnum <= sys_nerr))
1192 return sys_errlist [errnum];
1193 #endif /* NO_SYS_ERRLIST */
1195 msg = g_static_private_get (&msg_private);
1198 msg = g_new (gchar, 64);
1199 g_static_private_set (&msg_private, msg, g_free);
1202 _g_sprintf (msg, "unknown error (%d)", errnum);
1204 errno = saved_errno;
1208 G_CONST_RETURN gchar*
1209 g_strsignal (gint signum)
1211 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
1214 #ifdef HAVE_STRSIGNAL
1215 const char *msg_locale;
1217 #if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN)
1218 extern const char *strsignal(int);
1220 /* this is declared differently (const) in string.h on BeOS */
1221 extern char *strsignal (int sig);
1222 #endif /* !G_OS_BEOS && !G_WITH_CYGWIN */
1223 msg_locale = strsignal (signum);
1224 if (g_get_charset (NULL))
1228 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
1231 /* Stick in the quark table so that we can return a static result
1233 GQuark msg_quark = g_quark_from_string (msg_utf8);
1236 return g_quark_to_string (msg_quark);
1239 #elif NO_SYS_SIGLIST
1243 case SIGHUP: return "Hangup";
1246 case SIGINT: return "Interrupt";
1249 case SIGQUIT: return "Quit";
1252 case SIGILL: return "Illegal instruction";
1255 case SIGTRAP: return "Trace/breakpoint trap";
1258 case SIGABRT: return "IOT trap/Abort";
1261 case SIGBUS: return "Bus error";
1264 case SIGFPE: return "Floating point exception";
1267 case SIGKILL: return "Killed";
1270 case SIGUSR1: return "User defined signal 1";
1273 case SIGSEGV: return "Segmentation fault";
1276 case SIGUSR2: return "User defined signal 2";
1279 case SIGPIPE: return "Broken pipe";
1282 case SIGALRM: return "Alarm clock";
1285 case SIGTERM: return "Terminated";
1288 case SIGSTKFLT: return "Stack fault";
1291 case SIGCHLD: return "Child exited";
1294 case SIGCONT: return "Continued";
1297 case SIGSTOP: return "Stopped (signal)";
1300 case SIGTSTP: return "Stopped";
1303 case SIGTTIN: return "Stopped (tty input)";
1306 case SIGTTOU: return "Stopped (tty output)";
1309 case SIGURG: return "Urgent condition";
1312 case SIGXCPU: return "CPU time limit exceeded";
1315 case SIGXFSZ: return "File size limit exceeded";
1318 case SIGVTALRM: return "Virtual time alarm";
1321 case SIGPROF: return "Profile signal";
1324 case SIGWINCH: return "Window size changed";
1327 case SIGIO: return "Possible I/O";
1330 case SIGPWR: return "Power failure";
1333 case SIGUNUSED: return "Unused signal";
1336 #else /* NO_SYS_SIGLIST */
1338 #ifdef NO_SYS_SIGLIST_DECL
1339 extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
1342 return (char*) /* this function should return const --josh */ sys_siglist [signum];
1343 #endif /* NO_SYS_SIGLIST */
1345 msg = g_static_private_get (&msg_private);
1348 msg = g_new (gchar, 64);
1349 g_static_private_set (&msg_private, msg, g_free);
1352 _g_sprintf (msg, "unknown signal (%d)", signum);
1357 /* Functions g_strlcpy and g_strlcat were originally developed by
1358 * Todd C. Miller <Todd.Miller@courtesan.com> to simplify writing secure code.
1359 * See ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/strlcpy.3
1360 * for more information.
1364 /* Use the native ones, if available; they might be implemented in assembly */
1366 g_strlcpy (gchar *dest,
1370 g_return_val_if_fail (dest != NULL, 0);
1371 g_return_val_if_fail (src != NULL, 0);
1373 return strlcpy (dest, src, dest_size);
1377 g_strlcat (gchar *dest,
1381 g_return_val_if_fail (dest != NULL, 0);
1382 g_return_val_if_fail (src != NULL, 0);
1384 return strlcat (dest, src, dest_size);
1387 #else /* ! HAVE_STRLCPY */
1390 * Copy string src to buffer dest (of buffer size dest_size). At most
1391 * dest_size-1 characters will be copied. Always NUL terminates
1392 * (unless dest_size == 0). This function does NOT allocate memory.
1393 * Unlike strncpy, this function doesn't pad dest (so it's often faster).
1394 * Returns size of attempted result, strlen(src),
1395 * so if retval >= dest_size, truncation occurred.
1398 g_strlcpy (gchar *dest,
1402 register gchar *d = dest;
1403 register const gchar *s = src;
1404 register gsize n = dest_size;
1406 g_return_val_if_fail (dest != NULL, 0);
1407 g_return_val_if_fail (src != NULL, 0);
1409 /* Copy as many bytes as will fit */
1410 if (n != 0 && --n != 0)
1413 register gchar c = *s++;
1421 /* If not enough room in dest, add NUL and traverse rest of src */
1430 return s - src - 1; /* count does not include NUL */
1435 * Appends string src to buffer dest (of buffer size dest_size).
1436 * At most dest_size-1 characters will be copied.
1437 * Unlike strncat, dest_size is the full size of dest, not the space left over.
1438 * This function does NOT allocate memory.
1439 * This always NUL terminates (unless siz == 0 or there were no NUL characters
1440 * in the dest_size characters of dest to start with).
1441 * Returns size of attempted result, which is
1442 * MIN (dest_size, strlen (original dest)) + strlen (src),
1443 * so if retval >= dest_size, truncation occurred.
1446 g_strlcat (gchar *dest,
1450 register gchar *d = dest;
1451 register const gchar *s = src;
1452 register gsize bytes_left = dest_size;
1453 gsize dlength; /* Logically, MIN (strlen (d), dest_size) */
1455 g_return_val_if_fail (dest != NULL, 0);
1456 g_return_val_if_fail (src != NULL, 0);
1458 /* Find the end of dst and adjust bytes left but don't go past end */
1459 while (*d != 0 && bytes_left-- != 0)
1462 bytes_left = dest_size - dlength;
1464 if (bytes_left == 0)
1465 return dlength + strlen (s);
1469 if (bytes_left != 1)
1478 return dlength + (s - src); /* count does not include NUL */
1480 #endif /* ! HAVE_STRLCPY */
1485 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1487 * Converts all upper case ASCII letters to lower case ASCII letters.
1489 * Return value: a newly-allocated string, with all the upper case
1490 * characters in @str converted to lower case, with
1491 * semantics that exactly match g_ascii_tolower(). (Note
1492 * that this is unlike the old g_strdown(), which modified
1493 * the string in place.)
1496 g_ascii_strdown (const gchar *str,
1501 g_return_val_if_fail (str != NULL, NULL);
1506 result = g_strndup (str, len);
1507 for (s = result; *s; s++)
1508 *s = g_ascii_tolower (*s);
1516 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1518 * Converts all lower case ASCII letters to upper case ASCII letters.
1520 * Return value: a newly allocated string, with all the lower case
1521 * characters in @str converted to upper case, with
1522 * semantics that exactly match g_ascii_toupper(). (Note
1523 * that this is unlike the old g_strup(), which modified
1524 * the string in place.)
1527 g_ascii_strup (const gchar *str,
1532 g_return_val_if_fail (str != NULL, NULL);
1537 result = g_strndup (str, len);
1538 for (s = result; *s; s++)
1539 *s = g_ascii_toupper (*s);
1546 * @string: the string to convert.
1548 * Converts a string to lower case.
1550 * Return value: the string
1552 * Deprecated: This function is totally broken for the reasons discussed in
1553 * the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
1557 g_strdown (gchar *string)
1561 g_return_val_if_fail (string != NULL, NULL);
1563 s = (guchar *) string;
1572 return (gchar *) string;
1577 * @string: the string to convert.
1579 * Converts a string to upper case.
1581 * Return value: the string
1583 * Deprecated: This function is totally broken for the reasons discussed in
1584 * the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
1587 g_strup (gchar *string)
1591 g_return_val_if_fail (string != NULL, NULL);
1593 s = (guchar *) string;
1602 return (gchar *) string;
1606 g_strreverse (gchar *string)
1608 g_return_val_if_fail (string != NULL, NULL);
1612 register gchar *h, *t;
1615 t = string + strlen (string) - 1;
1634 * @c: any character.
1636 * Convert a character to ASCII lower case.
1638 * Unlike the standard C library tolower() function, this only
1639 * recognizes standard ASCII letters and ignores the locale, returning
1640 * all non-ASCII characters unchanged, even if they are lower case
1641 * letters in a particular character set. Also unlike the standard
1642 * library function, this takes and returns a char, not an int, so
1643 * don't call it on %EOF but no need to worry about casting to #guchar
1644 * before passing a possibly non-ASCII character in.
1646 * Return value: the result of converting @c to lower case.
1647 * If @c is not an ASCII upper case letter,
1648 * @c is returned unchanged.
1651 g_ascii_tolower (gchar c)
1653 return g_ascii_isupper (c) ? c - 'A' + 'a' : c;
1658 * @c: any character.
1660 * Convert a character to ASCII upper case.
1662 * Unlike the standard C library toupper() function, this only
1663 * recognizes standard ASCII letters and ignores the locale, returning
1664 * all non-ASCII characters unchanged, even if they are upper case
1665 * letters in a particular character set. Also unlike the standard
1666 * library function, this takes and returns a char, not an int, so
1667 * don't call it on %EOF but no need to worry about casting to #guchar
1668 * before passing a possibly non-ASCII character in.
1670 * Return value: the result of converting @c to upper case.
1671 * If @c is not an ASCII lower case letter,
1672 * @c is returned unchanged.
1675 g_ascii_toupper (gchar c)
1677 return g_ascii_islower (c) ? c - 'a' + 'A' : c;
1681 * g_ascii_digit_value:
1682 * @c: an ASCII character.
1684 * Determines the numeric value of a character as a decimal
1685 * digit. Differs from g_unichar_digit_value() because it takes
1686 * a char, so there's no worry about sign extension if characters
1689 * Return value: If @c is a decimal digit (according to
1690 * g_ascii_isdigit()), its numeric value. Otherwise, -1.
1693 g_ascii_digit_value (gchar c)
1695 if (g_ascii_isdigit (c))
1701 * g_ascii_xdigit_value:
1702 * @c: an ASCII character.
1704 * Determines the numeric value of a character as a hexidecimal
1705 * digit. Differs from g_unichar_xdigit_value() because it takes
1706 * a char, so there's no worry about sign extension if characters
1709 * Return value: If @c is a hex digit (according to
1710 * g_ascii_isxdigit()), its numeric value. Otherwise, -1.
1713 g_ascii_xdigit_value (gchar c)
1715 if (c >= 'A' && c <= 'F')
1716 return c - 'A' + 10;
1717 if (c >= 'a' && c <= 'f')
1718 return c - 'a' + 10;
1719 return g_ascii_digit_value (c);
1723 * g_ascii_strcasecmp:
1724 * @s1: string to compare with @s2.
1725 * @s2: string to compare with @s1.
1727 * Compare two strings, ignoring the case of ASCII characters.
1729 * Unlike the BSD strcasecmp() function, this only recognizes standard
1730 * ASCII letters and ignores the locale, treating all non-ASCII
1731 * characters as if they are not letters.
1733 * Return value: an integer less than, equal to, or greater than
1734 * zero if @s1 is found, respectively, to be less than,
1735 * to match, or to be greater than @s2.
1738 g_ascii_strcasecmp (const gchar *s1,
1743 g_return_val_if_fail (s1 != NULL, 0);
1744 g_return_val_if_fail (s2 != NULL, 0);
1748 c1 = (gint)(guchar) TOLOWER (*s1);
1749 c2 = (gint)(guchar) TOLOWER (*s2);
1755 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1759 * g_ascii_strncasecmp:
1760 * @s1: string to compare with @s2.
1761 * @s2: string to compare with @s1.
1762 * @n: number of characters to compare.
1764 * Compare @s1 and @s2, ignoring the case of ASCII characters and any
1765 * characters after the first @n in each string.
1767 * Unlike the BSD strcasecmp() function, this only recognizes standard
1768 * ASCII letters and ignores the locale, treating all non-ASCII
1769 * characters as if they are not letters.
1771 * Return value: an integer less than, equal to, or greater than zero
1772 * if the first @n bytes of @s1 is found, respectively,
1773 * to be less than, to match, or to be greater than the
1774 * first @n bytes of @s2.
1777 g_ascii_strncasecmp (const gchar *s1,
1783 g_return_val_if_fail (s1 != NULL, 0);
1784 g_return_val_if_fail (s2 != NULL, 0);
1786 while (n && *s1 && *s2)
1789 c1 = (gint)(guchar) TOLOWER (*s1);
1790 c2 = (gint)(guchar) TOLOWER (*s2);
1797 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
1805 * @s2: a string to compare with @s1.
1807 * A case-insensitive string comparison, corresponding to the standard
1808 * strcasecmp() function on platforms which support it.
1810 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1811 * or a positive value if @s1 > @s2.
1813 * Deprecated: See g_strncasecmp() for a discussion of why this function is
1814 * deprecated and how to replace it.
1817 g_strcasecmp (const gchar *s1,
1820 #ifdef HAVE_STRCASECMP
1821 g_return_val_if_fail (s1 != NULL, 0);
1822 g_return_val_if_fail (s2 != NULL, 0);
1824 return strcasecmp (s1, s2);
1828 g_return_val_if_fail (s1 != NULL, 0);
1829 g_return_val_if_fail (s2 != NULL, 0);
1833 /* According to A. Cox, some platforms have islower's that
1834 * don't work right on non-uppercase
1836 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1837 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1843 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1850 * @s2: a string to compare with @s1.
1851 * @n: the maximum number of characters to compare.
1853 * A case-insensitive string comparison, corresponding to the standard
1854 * strncasecmp() function on platforms which support it.
1855 * It is similar to g_strcasecmp() except it only compares the first @n
1856 * characters of the strings.
1858 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1859 * or a positive value if @s1 > @s2.
1861 * Deprecated: The problem with g_strncasecmp() is that it does the
1862 * comparison by calling toupper()/tolower(). These functions are
1863 * locale-specific and operate on single bytes. However, it is impossible
1864 * to handle things correctly from an I18N standpoint by operating on
1865 * bytes, since characters may be multibyte. Thus g_strncasecmp() is
1866 * broken if your string is guaranteed to be ASCII, since it's
1867 * locale-sensitive, and it's broken if your string is localized, since
1868 * it doesn't work on many encodings at all, including UTF-8, EUC-JP,
1871 * There are therefore two replacement functions: g_ascii_strncasecmp(),
1872 * which only works on ASCII and is not locale-sensitive, and
1873 * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8.
1876 g_strncasecmp (const gchar *s1,
1880 #ifdef HAVE_STRNCASECMP
1881 return strncasecmp (s1, s2, n);
1885 g_return_val_if_fail (s1 != NULL, 0);
1886 g_return_val_if_fail (s2 != NULL, 0);
1888 while (n && *s1 && *s2)
1891 /* According to A. Cox, some platforms have islower's that
1892 * don't work right on non-uppercase
1894 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1895 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1902 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
1909 g_strdelimit (gchar *string,
1910 const gchar *delimiters,
1915 g_return_val_if_fail (string != NULL, NULL);
1918 delimiters = G_STR_DELIMITERS;
1920 for (c = string; *c; c++)
1922 if (strchr (delimiters, *c))
1930 g_strcanon (gchar *string,
1931 const gchar *valid_chars,
1936 g_return_val_if_fail (string != NULL, NULL);
1937 g_return_val_if_fail (valid_chars != NULL, NULL);
1939 for (c = string; *c; c++)
1941 if (!strchr (valid_chars, *c))
1949 g_strcompress (const gchar *source)
1951 const gchar *p = source, *octal;
1952 gchar *dest = g_malloc (strlen (source) + 1);
1962 case '0': case '1': case '2': case '3': case '4':
1963 case '5': case '6': case '7':
1966 while ((p < octal + 3) && (*p >= '0') && (*p <= '7'))
1968 *q = (*q * 8) + (*p - '0');
1989 default: /* Also handles \" and \\ */
2004 g_strescape (const gchar *source,
2005 const gchar *exceptions)
2012 g_return_val_if_fail (source != NULL, NULL);
2014 p = (guchar *) source;
2015 /* Each source byte needs maximally four destination chars (\777) */
2016 q = dest = g_malloc (strlen (source) * 4 + 1);
2018 memset (excmap, 0, 256);
2021 guchar *e = (guchar *) exceptions;
2067 if ((*p < ' ') || (*p >= 0177))
2070 *q++ = '0' + (((*p) >> 6) & 07);
2071 *q++ = '0' + (((*p) >> 3) & 07);
2072 *q++ = '0' + ((*p) & 07);
2086 g_strchug (gchar *string)
2090 g_return_val_if_fail (string != NULL, NULL);
2092 for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
2095 g_memmove (string, start, strlen ((gchar *) start) + 1);
2101 g_strchomp (gchar *string)
2105 g_return_val_if_fail (string != NULL, NULL);
2107 len = strlen (string);
2110 if (g_ascii_isspace ((guchar) string[len]))
2121 * @string: a string to split.
2122 * @delimiter: a string which specifies the places at which to split the string.
2123 * The delimiter is not included in any of the resulting strings, unless
2124 * @max_tokens is reached.
2125 * @max_tokens: the maximum number of pieces to split @string into. If this is
2126 * less than 1, the string is split completely.
2128 * Splits a string into a maximum of @max_tokens pieces, using the given
2129 * @delimiter. If @max_tokens is reached, the remainder of @string is appended
2130 * to the last token.
2132 * As a special case, the result of splitting the empty string "" is an empty
2133 * vector, not a vector containing a single string. The reason for this
2134 * special case is that being able to represent a empty vector is typically
2135 * more useful than consistent handling of empty elements. If you do need
2136 * to represent empty elements, you'll need to check for the empty string
2137 * before calling g_strsplit().
2139 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2140 * g_strfreev() to free it.
2143 g_strsplit (const gchar *string,
2144 const gchar *delimiter,
2147 GSList *string_list = NULL, *slist;
2148 gchar **str_array, *s;
2150 const gchar *remainder;
2152 g_return_val_if_fail (string != NULL, NULL);
2153 g_return_val_if_fail (delimiter != NULL, NULL);
2154 g_return_val_if_fail (delimiter[0] != '\0', NULL);
2157 max_tokens = G_MAXINT;
2160 s = strstr (remainder, delimiter);
2163 gsize delimiter_len = strlen (delimiter);
2165 while (--max_tokens && s)
2170 len = s - remainder;
2171 new_string = g_new (gchar, len + 1);
2172 strncpy (new_string, remainder, len);
2173 new_string[len] = 0;
2174 string_list = g_slist_prepend (string_list, new_string);
2176 remainder = s + delimiter_len;
2177 s = strstr (remainder, delimiter);
2183 string_list = g_slist_prepend (string_list, g_strdup (remainder));
2186 str_array = g_new (gchar*, n + 1);
2188 str_array[n--] = NULL;
2189 for (slist = string_list; slist; slist = slist->next)
2190 str_array[n--] = slist->data;
2192 g_slist_free (string_list);
2199 * @string: The string to be tokenized
2200 * @delimiters: A nul-terminated string containing bytes that are used
2201 * to split the string.
2202 * @max_tokens: The maximum number of tokens to split @string into.
2203 * If this is less than 1, the string is split completely
2205 * Splits @string into a number of tokens not containing any of the characters
2206 * in @delimiter. A token is the (possibly empty) longest string that does not
2207 * contain any of the characters in @delimiters. If @max_tokens is reached, the
2208 * remainder is appended to the last token.
2210 * For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a
2211 * %NULL-terminated vector containing the three strings "abc", "def",
2214 * The result if g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated
2215 * vector containing the four strings "", "def", "ghi", and "".
2217 * As a special case, the result of splitting the empty string "" is an empty
2218 * vector, not a vector containing a single string. The reason for this
2219 * special case is that being able to represent a empty vector is typically
2220 * more useful than consistent handling of empty elements. If you do need
2221 * to represent empty elements, you'll need to check for the empty string
2222 * before calling g_strsplit_set().
2224 * Note that this function works on bytes not characters, so it can't be used
2225 * to delimit UTF-8 strings for anything but ASCII characters.
2227 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2228 * g_strfreev() to free it.
2233 g_strsplit_set (const gchar *string,
2234 const gchar *delimiters,
2237 gboolean delim_table[256];
2238 GSList *tokens, *list;
2241 const gchar *current;
2245 g_return_val_if_fail (string != NULL, NULL);
2246 g_return_val_if_fail (delimiters != NULL, NULL);
2249 max_tokens = G_MAXINT;
2251 if (*string == '\0')
2253 result = g_new (char *, 1);
2258 memset (delim_table, FALSE, sizeof (delim_table));
2259 for (s = delimiters; *s != '\0'; ++s)
2260 delim_table[*(guchar *)s] = TRUE;
2265 s = current = string;
2268 if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens)
2272 token = g_strndup (current, s - current);
2273 tokens = g_slist_prepend (tokens, token);
2282 token = g_strndup (current, s - current);
2283 tokens = g_slist_prepend (tokens, token);
2286 result = g_new (gchar *, n_tokens + 1);
2288 result[n_tokens] = NULL;
2289 for (list = tokens; list != NULL; list = list->next)
2290 result[--n_tokens] = list->data;
2292 g_slist_free (tokens);
2299 * @str_array: a %NULL-terminated array of strings to free.
2301 * Frees a %NULL-terminated array of strings, and the array itself.
2302 * If called on a %NULL value, g_strfreev() simply returns.
2305 g_strfreev (gchar **str_array)
2311 for(i = 0; str_array[i] != NULL; i++)
2312 g_free(str_array[i]);
2320 * @str_array: %NULL-terminated array of strings.
2322 * Copies %NULL-terminated array of strings. The copy is a deep copy;
2323 * the new array should be freed by first freeing each string, then
2324 * the array itself. g_strfreev() does this for you. If called
2325 * on a %NULL value, g_strdupv() simply returns %NULL.
2327 * Return value: a new %NULL-terminated array of strings.
2330 g_strdupv (gchar **str_array)
2338 while (str_array[i])
2341 retval = g_new (gchar*, i + 1);
2344 while (str_array[i])
2346 retval[i] = g_strdup (str_array[i]);
2358 g_strjoinv (const gchar *separator,
2364 g_return_val_if_fail (str_array != NULL, NULL);
2366 if (separator == NULL)
2373 gsize separator_len;
2375 separator_len = strlen (separator);
2376 /* First part, getting length */
2377 len = 1 + strlen (str_array[0]);
2378 for (i = 1; str_array[i] != NULL; i++)
2379 len += strlen (str_array[i]);
2380 len += separator_len * (i - 1);
2382 /* Second part, building string */
2383 string = g_new (gchar, len);
2384 ptr = g_stpcpy (string, *str_array);
2385 for (i = 1; str_array[i] != NULL; i++)
2387 ptr = g_stpcpy (ptr, separator);
2388 ptr = g_stpcpy (ptr, str_array[i]);
2392 string = g_strdup ("");
2398 g_strjoin (const gchar *separator,
2404 gsize separator_len;
2407 if (separator == NULL)
2410 separator_len = strlen (separator);
2412 va_start (args, separator);
2414 s = va_arg (args, gchar*);
2418 /* First part, getting length */
2419 len = 1 + strlen (s);
2421 s = va_arg (args, gchar*);
2424 len += separator_len + strlen (s);
2425 s = va_arg (args, gchar*);
2429 /* Second part, building string */
2430 string = g_new (gchar, len);
2432 va_start (args, separator);
2434 s = va_arg (args, gchar*);
2435 ptr = g_stpcpy (string, s);
2437 s = va_arg (args, gchar*);
2440 ptr = g_stpcpy (ptr, separator);
2441 ptr = g_stpcpy (ptr, s);
2442 s = va_arg (args, gchar*);
2446 string = g_strdup ("");
2456 * @haystack: a string.
2457 * @haystack_len: the maximum length of @haystack.
2458 * @needle: the string to search for.
2460 * Searches the string @haystack for the first occurrence
2461 * of the string @needle, limiting the length of the search
2464 * Return value: a pointer to the found occurrence, or
2465 * %NULL if not found.
2468 g_strstr_len (const gchar *haystack,
2469 gssize haystack_len,
2470 const gchar *needle)
2472 g_return_val_if_fail (haystack != NULL, NULL);
2473 g_return_val_if_fail (needle != NULL, NULL);
2475 if (haystack_len < 0)
2476 return strstr (haystack, needle);
2479 const gchar *p = haystack;
2480 gsize needle_len = strlen (needle);
2484 if (needle_len == 0)
2485 return (gchar *)haystack;
2487 if (haystack_len < needle_len)
2490 end = haystack + haystack_len - needle_len;
2492 while (*p && p <= end)
2494 for (i = 0; i < needle_len; i++)
2495 if (p[i] != needle[i])
2510 * @haystack: a nul-terminated string.
2511 * @needle: the nul-terminated string to search for.
2513 * Searches the string @haystack for the last occurrence
2514 * of the string @needle.
2516 * Return value: a pointer to the found occurrence, or
2517 * %NULL if not found.
2520 g_strrstr (const gchar *haystack,
2521 const gchar *needle)
2528 g_return_val_if_fail (haystack != NULL, NULL);
2529 g_return_val_if_fail (needle != NULL, NULL);
2531 needle_len = strlen (needle);
2532 haystack_len = strlen (haystack);
2534 if (needle_len == 0)
2535 return (gchar *)haystack;
2537 if (haystack_len < needle_len)
2540 p = haystack + haystack_len - needle_len;
2542 while (p >= haystack)
2544 for (i = 0; i < needle_len; i++)
2545 if (p[i] != needle[i])
2559 * @haystack: a nul-terminated string.
2560 * @haystack_len: the maximum length of @haystack.
2561 * @needle: the nul-terminated string to search for.
2563 * Searches the string @haystack for the last occurrence
2564 * of the string @needle, limiting the length of the search
2567 * Return value: a pointer to the found occurrence, or
2568 * %NULL if not found.
2571 g_strrstr_len (const gchar *haystack,
2572 gssize haystack_len,
2573 const gchar *needle)
2575 g_return_val_if_fail (haystack != NULL, NULL);
2576 g_return_val_if_fail (needle != NULL, NULL);
2578 if (haystack_len < 0)
2579 return g_strrstr (haystack, needle);
2582 gsize needle_len = strlen (needle);
2583 const gchar *haystack_max = haystack + haystack_len;
2584 const gchar *p = haystack;
2587 while (p < haystack_max && *p)
2590 if (p < haystack + needle_len)
2595 while (p >= haystack)
2597 for (i = 0; i < needle_len; i++)
2598 if (p[i] != needle[i])
2614 * @str: a nul-terminated string.
2615 * @suffix: the nul-terminated suffix to look for.
2617 * Looks whether the string @str ends with @suffix.
2619 * Return value: %TRUE if @str end with @suffix, %FALSE otherwise.
2624 g_str_has_suffix (const gchar *str,
2625 const gchar *suffix)
2630 g_return_val_if_fail (str != NULL, FALSE);
2631 g_return_val_if_fail (suffix != NULL, FALSE);
2633 str_len = strlen (str);
2634 suffix_len = strlen (suffix);
2636 if (str_len < suffix_len)
2639 return strcmp (str + str_len - suffix_len, suffix) == 0;
2644 * @str: a nul-terminated string.
2645 * @prefix: the nul-terminated prefix to look for.
2647 * Looks whether the string @str begins with @prefix.
2649 * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise.
2654 g_str_has_prefix (const gchar *str,
2655 const gchar *prefix)
2660 g_return_val_if_fail (str != NULL, FALSE);
2661 g_return_val_if_fail (prefix != NULL, FALSE);
2663 str_len = strlen (str);
2664 prefix_len = strlen (prefix);
2666 if (str_len < prefix_len)
2669 return strncmp (str, prefix, prefix_len) == 0;
2676 * @msgval: another string
2678 * An auxiliary function for gettext() support (see Q_()).
2680 * Return value: @msgval, unless @msgval is identical to @msgid and contains
2681 * a '|' character, in which case a pointer to the substring of msgid after
2682 * the first '|' character is returned.
2686 G_CONST_RETURN gchar *
2687 g_strip_context (const gchar *msgid,
2688 const gchar *msgval)
2690 if (msgval == msgid)
2692 const char *c = strchr (msgid, '|');