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))
388 while (g_ascii_isdigit (*p))
393 decimal_point_pos = p++;
395 while (g_ascii_isdigit (*p))
398 if (*p == 'e' || *p == 'E')
400 if (*p == '+' || *p == '-')
402 while (g_ascii_isdigit (*p))
407 /* For the other cases, we need not convert the decimal point */
410 /* Set errno to zero, so that we can distinguish zero results
414 if (decimal_point_pos)
418 /* We need to convert the '.' to the locale specific decimal point */
419 copy = g_malloc (end - nptr + 1 + decimal_point_len);
422 memcpy (c, nptr, decimal_point_pos - nptr);
423 c += decimal_point_pos - nptr;
424 memcpy (c, decimal_point, decimal_point_len);
425 c += decimal_point_len;
426 memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
427 c += end - (decimal_point_pos + 1);
430 val = strtod (copy, &fail_pos);
434 if (fail_pos - copy > decimal_point_pos - nptr)
435 fail_pos = (char *)nptr + (fail_pos - copy) - (decimal_point_len - 1);
437 fail_pos = (char *)nptr + (fail_pos - copy);
444 val = strtod (nptr, &fail_pos);
455 * @buffer: A buffer to place the resulting string in
456 * @buf_len: The length of the buffer.
457 * @d: The #gdouble to convert
459 * Converts a #gdouble to a string, using the '.' as
462 * This functions generates enough precision that converting
463 * the string back using g_ascii_strtod() gives the same machine-number
464 * (on machines with IEEE compatible 64bit doubles). It is
465 * guaranteed that the size of the resulting string will never
466 * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes.
468 * Return value: The pointer to the buffer with the converted string.
471 g_ascii_dtostr (gchar *buffer,
475 return g_ascii_formatd (buffer, buf_len, "%.17g", d);
480 * @buffer: A buffer to place the resulting string in
481 * @buf_len: The length of the buffer.
482 * @format: The printf()-style format to use for the
483 * code to use for converting.
484 * @d: The #gdouble to convert
486 * Converts a #gdouble to a string, using the '.' as
487 * decimal point. To format the number you pass in
488 * a printf()-style format string. Allowed conversion
489 * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
491 * If you just want to want to serialize the value into a
492 * string, use g_ascii_dtostr().
494 * Return value: The pointer to the buffer with the converted string.
497 g_ascii_formatd (gchar *buffer,
502 struct lconv *locale_data;
503 const char *decimal_point;
504 int decimal_point_len;
509 g_return_val_if_fail (buffer != NULL, NULL);
510 g_return_val_if_fail (format[0] == '%', NULL);
511 g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL);
513 format_char = format[strlen (format) - 1];
515 g_return_val_if_fail (format_char == 'e' || format_char == 'E' ||
516 format_char == 'f' || format_char == 'F' ||
517 format_char == 'g' || format_char == 'G',
520 if (format[0] != '%')
523 if (strpbrk (format + 1, "'l%"))
526 if (!(format_char == 'e' || format_char == 'E' ||
527 format_char == 'f' || format_char == 'F' ||
528 format_char == 'g' || format_char == 'G'))
532 _g_snprintf (buffer, buf_len, format, d);
534 locale_data = localeconv ();
535 decimal_point = locale_data->decimal_point;
536 decimal_point_len = strlen (decimal_point);
538 g_assert (decimal_point_len != 0);
540 if (decimal_point[0] != '.' ||
541 decimal_point[1] != 0)
545 if (*p == '+' || *p == '-')
548 while (isdigit ((guchar)*p))
551 if (strncmp (p, decimal_point, decimal_point_len) == 0)
555 if (decimal_point_len > 1) {
556 rest_len = strlen (p + (decimal_point_len-1));
557 memmove (p, p + (decimal_point_len-1),
570 * @nptr: the string to convert to a numeric value.
571 * @endptr: if non-%NULL, it returns the character after
572 * the last character used in the conversion.
573 * @base: to be used for the conversion, 2..36 or 0
575 * Converts a string to a #guint64 value.
576 * This function behaves like the standard strtoull() function
577 * does in the C locale. It does this without actually
578 * changing the current locale, since that would not be
581 * This function is typically used when reading configuration
582 * files or other non-user input that should be locale independent.
583 * To handle input from the user you should normally use the
584 * locale-sensitive system strtoull() function.
586 * If the correct value would cause overflow, %G_MAXUINT64
587 * is returned, and %ERANGE is stored in %errno.
589 * Return value: the #guint64 value.
594 g_ascii_strtoull (const gchar *nptr,
598 /* this code is based on on the strtol(3) code from GNU libc released under
599 * the GNU Lesser General Public License.
601 * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
602 * Free Software Foundation, Inc.
604 #define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
605 (c) == '\r' || (c) == '\t' || (c) == '\v')
606 #define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z')
607 #define ISLOWER(c) ((c) >= 'a' && (c) <= 'z')
608 #define ISALPHA(c) (ISUPPER (c) || ISLOWER (c))
609 #define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c))
610 #define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c))
611 gboolean negative, overflow;
615 const gchar *s, *save;
618 g_return_val_if_fail (nptr != NULL, 0);
620 if (base == 1 || base > 36)
628 /* Skip white space. */
634 /* Check for a sign. */
644 /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
647 if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X')
658 /* Save the pointer so we can check later if anything happened. */
660 cutoff = G_MAXUINT64 / base;
661 cutlim = G_MAXUINT64 % base;
668 if (c >= '0' && c <= '9')
670 else if (ISALPHA (c))
671 c = TOUPPER (c) - 'A' + 10;
676 /* Check for overflow. */
677 if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
686 /* Check if anything actually happened. */
690 /* Store in ENDPTR the address of one character
691 past the last character we converted. */
693 *endptr = (gchar*) s;
701 /* Return the result of the appropriate sign. */
702 return negative ? -ui64 : ui64;
705 /* We must handle a special case here: the base is 0 or 16 and the
706 first two characters are '0' and 'x', but the rest are no
707 hexadecimal digits. This is no error case. We return 0 and
708 ENDPTR points to the `x`. */
711 if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
713 *endptr = (gchar*) &save[-1];
715 /* There was no number to convert. */
716 *endptr = (gchar*) nptr;
722 G_CONST_RETURN gchar*
723 g_strerror (gint errnum)
725 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
727 int saved_errno = errno;
730 const char *msg_locale;
732 msg_locale = strerror (errnum);
733 if (g_get_charset (NULL))
740 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
743 /* Stick in the quark table so that we can return a static result
745 GQuark msg_quark = g_quark_from_string (msg_utf8);
748 msg_utf8 = (gchar *) g_quark_to_string (msg_quark);
757 case E2BIG: return "argument list too long";
760 case EACCES: return "permission denied";
763 case EADDRINUSE: return "address already in use";
766 case EADDRNOTAVAIL: return "can't assign requested address";
769 case EADV: return "advertise error";
772 case EAFNOSUPPORT: return "address family not supported by protocol family";
775 case EAGAIN: return "try again";
778 case EALIGN: return "EALIGN";
781 case EALREADY: return "operation already in progress";
784 case EBADE: return "bad exchange descriptor";
787 case EBADF: return "bad file number";
790 case EBADFD: return "file descriptor in bad state";
793 case EBADMSG: return "not a data message";
796 case EBADR: return "bad request descriptor";
799 case EBADRPC: return "RPC structure is bad";
802 case EBADRQC: return "bad request code";
805 case EBADSLT: return "invalid slot";
808 case EBFONT: return "bad font file format";
811 case EBUSY: return "mount device busy";
814 case ECHILD: return "no children";
817 case ECHRNG: return "channel number out of range";
820 case ECOMM: return "communication error on send";
823 case ECONNABORTED: return "software caused connection abort";
826 case ECONNREFUSED: return "connection refused";
829 case ECONNRESET: return "connection reset by peer";
831 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
832 case EDEADLK: return "resource deadlock avoided";
835 case EDEADLOCK: return "resource deadlock avoided";
838 case EDESTADDRREQ: return "destination address required";
841 case EDIRTY: return "mounting a dirty fs w/o force";
844 case EDOM: return "math argument out of range";
847 case EDOTDOT: return "cross mount point";
850 case EDQUOT: return "disk quota exceeded";
853 case EDUPPKG: return "duplicate package name";
856 case EEXIST: return "file already exists";
859 case EFAULT: return "bad address in system call argument";
862 case EFBIG: return "file too large";
865 case EHOSTDOWN: return "host is down";
868 case EHOSTUNREACH: return "host is unreachable";
871 case EIDRM: return "identifier removed";
874 case EINIT: return "initialization error";
877 case EINPROGRESS: return "operation now in progress";
880 case EINTR: return "interrupted system call";
883 case EINVAL: return "invalid argument";
886 case EIO: return "I/O error";
889 case EISCONN: return "socket is already connected";
892 case EISDIR: return "is a directory";
895 case EISNAM: return "is a name file";
898 case ELBIN: return "ELBIN";
901 case EL2HLT: return "level 2 halted";
904 case EL2NSYNC: return "level 2 not synchronized";
907 case EL3HLT: return "level 3 halted";
910 case EL3RST: return "level 3 reset";
913 case ELIBACC: return "can not access a needed shared library";
916 case ELIBBAD: return "accessing a corrupted shared library";
919 case ELIBEXEC: return "can not exec a shared library directly";
922 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
925 case ELIBSCN: return ".lib section in a.out corrupted";
928 case ELNRNG: return "link number out of range";
931 case ELOOP: return "too many levels of symbolic links";
934 case EMFILE: return "too many open files";
937 case EMLINK: return "too many links";
940 case EMSGSIZE: return "message too long";
943 case EMULTIHOP: return "multihop attempted";
946 case ENAMETOOLONG: return "file name too long";
949 case ENAVAIL: return "not available";
952 case ENET: return "ENET";
955 case ENETDOWN: return "network is down";
958 case ENETRESET: return "network dropped connection on reset";
961 case ENETUNREACH: return "network is unreachable";
964 case ENFILE: return "file table overflow";
967 case ENOANO: return "anode table overflow";
969 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
970 case ENOBUFS: return "no buffer space available";
973 case ENOCSI: return "no CSI structure available";
976 case ENODATA: return "no data available";
979 case ENODEV: return "no such device";
982 case ENOENT: return "no such file or directory";
985 case ENOEXEC: return "exec format error";
988 case ENOLCK: return "no locks available";
991 case ENOLINK: return "link has be severed";
994 case ENOMEM: return "not enough memory";
997 case ENOMSG: return "no message of desired type";
1000 case ENONET: return "machine is not on the network";
1003 case ENOPKG: return "package not installed";
1006 case ENOPROTOOPT: return "bad proocol option";
1009 case ENOSPC: return "no space left on device";
1012 case ENOSR: return "out of stream resources";
1015 case ENOSTR: return "not a stream device";
1018 case ENOSYM: return "unresolved symbol name";
1021 case ENOSYS: return "function not implemented";
1024 case ENOTBLK: return "block device required";
1027 case ENOTCONN: return "socket is not connected";
1030 case ENOTDIR: return "not a directory";
1033 case ENOTEMPTY: return "directory not empty";
1036 case ENOTNAM: return "not a name file";
1039 case ENOTSOCK: return "socket operation on non-socket";
1042 case ENOTTY: return "inappropriate device for ioctl";
1045 case ENOTUNIQ: return "name not unique on network";
1048 case ENXIO: return "no such device or address";
1051 case EOPNOTSUPP: return "operation not supported on socket";
1054 case EPERM: return "not owner";
1057 case EPFNOSUPPORT: return "protocol family not supported";
1060 case EPIPE: return "broken pipe";
1063 case EPROCLIM: return "too many processes";
1066 case EPROCUNAVAIL: return "bad procedure for program";
1068 #ifdef EPROGMISMATCH
1069 case EPROGMISMATCH: return "program version wrong";
1072 case EPROGUNAVAIL: return "RPC program not available";
1075 case EPROTO: return "protocol error";
1077 #ifdef EPROTONOSUPPORT
1078 case EPROTONOSUPPORT: return "protocol not suppored";
1081 case EPROTOTYPE: return "protocol wrong type for socket";
1084 case ERANGE: return "math result unrepresentable";
1086 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
1087 case EREFUSED: return "EREFUSED";
1090 case EREMCHG: return "remote address changed";
1093 case EREMDEV: return "remote device";
1096 case EREMOTE: return "pathname hit remote file system";
1099 case EREMOTEIO: return "remote i/o error";
1101 #ifdef EREMOTERELEASE
1102 case EREMOTERELEASE: return "EREMOTERELEASE";
1105 case EROFS: return "read-only file system";
1108 case ERPCMISMATCH: return "RPC version is wrong";
1111 case ERREMOTE: return "object is remote";
1114 case ESHUTDOWN: return "can't send afer socket shutdown";
1116 #ifdef ESOCKTNOSUPPORT
1117 case ESOCKTNOSUPPORT: return "socket type not supported";
1120 case ESPIPE: return "invalid seek";
1123 case ESRCH: return "no such process";
1126 case ESRMNT: return "srmount error";
1129 case ESTALE: return "stale remote file handle";
1132 case ESUCCESS: return "Error 0";
1135 case ETIME: return "timer expired";
1138 case ETIMEDOUT: return "connection timed out";
1141 case ETOOMANYREFS: return "too many references: can't splice";
1144 case ETXTBSY: return "text file or pseudo-device busy";
1147 case EUCLEAN: return "structure needs cleaning";
1150 case EUNATCH: return "protocol driver not attached";
1153 case EUSERS: return "too many users";
1156 case EVERSION: return "version mismatch";
1158 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
1159 case EWOULDBLOCK: return "operation would block";
1162 case EXDEV: return "cross-domain link";
1165 case EXFULL: return "message tables full";
1168 #else /* NO_SYS_ERRLIST */
1169 extern int sys_nerr;
1170 extern char *sys_errlist[];
1172 if ((errnum > 0) && (errnum <= sys_nerr))
1173 return sys_errlist [errnum];
1174 #endif /* NO_SYS_ERRLIST */
1176 msg = g_static_private_get (&msg_private);
1179 msg = g_new (gchar, 64);
1180 g_static_private_set (&msg_private, msg, g_free);
1183 _g_sprintf (msg, "unknown error (%d)", errnum);
1185 errno = saved_errno;
1189 G_CONST_RETURN gchar*
1190 g_strsignal (gint signum)
1192 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
1195 #ifdef HAVE_STRSIGNAL
1196 const char *msg_locale;
1198 #if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN)
1199 extern const char *strsignal(int);
1201 /* this is declared differently (const) in string.h on BeOS */
1202 extern char *strsignal (int sig);
1203 #endif /* !G_OS_BEOS && !G_WITH_CYGWIN */
1204 msg_locale = strsignal (signum);
1205 if (g_get_charset (NULL))
1209 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
1212 /* Stick in the quark table so that we can return a static result
1214 GQuark msg_quark = g_quark_from_string (msg_utf8);
1217 return g_quark_to_string (msg_quark);
1220 #elif NO_SYS_SIGLIST
1224 case SIGHUP: return "Hangup";
1227 case SIGINT: return "Interrupt";
1230 case SIGQUIT: return "Quit";
1233 case SIGILL: return "Illegal instruction";
1236 case SIGTRAP: return "Trace/breakpoint trap";
1239 case SIGABRT: return "IOT trap/Abort";
1242 case SIGBUS: return "Bus error";
1245 case SIGFPE: return "Floating point exception";
1248 case SIGKILL: return "Killed";
1251 case SIGUSR1: return "User defined signal 1";
1254 case SIGSEGV: return "Segmentation fault";
1257 case SIGUSR2: return "User defined signal 2";
1260 case SIGPIPE: return "Broken pipe";
1263 case SIGALRM: return "Alarm clock";
1266 case SIGTERM: return "Terminated";
1269 case SIGSTKFLT: return "Stack fault";
1272 case SIGCHLD: return "Child exited";
1275 case SIGCONT: return "Continued";
1278 case SIGSTOP: return "Stopped (signal)";
1281 case SIGTSTP: return "Stopped";
1284 case SIGTTIN: return "Stopped (tty input)";
1287 case SIGTTOU: return "Stopped (tty output)";
1290 case SIGURG: return "Urgent condition";
1293 case SIGXCPU: return "CPU time limit exceeded";
1296 case SIGXFSZ: return "File size limit exceeded";
1299 case SIGVTALRM: return "Virtual time alarm";
1302 case SIGPROF: return "Profile signal";
1305 case SIGWINCH: return "Window size changed";
1308 case SIGIO: return "Possible I/O";
1311 case SIGPWR: return "Power failure";
1314 case SIGUNUSED: return "Unused signal";
1317 #else /* NO_SYS_SIGLIST */
1319 #ifdef NO_SYS_SIGLIST_DECL
1320 extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
1323 return (char*) /* this function should return const --josh */ sys_siglist [signum];
1324 #endif /* NO_SYS_SIGLIST */
1326 msg = g_static_private_get (&msg_private);
1329 msg = g_new (gchar, 64);
1330 g_static_private_set (&msg_private, msg, g_free);
1333 _g_sprintf (msg, "unknown signal (%d)", signum);
1338 /* Functions g_strlcpy and g_strlcat were originally developed by
1339 * Todd C. Miller <Todd.Miller@courtesan.com> to simplify writing secure code.
1340 * See ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/strlcpy.3
1341 * for more information.
1345 /* Use the native ones, if available; they might be implemented in assembly */
1347 g_strlcpy (gchar *dest,
1351 g_return_val_if_fail (dest != NULL, 0);
1352 g_return_val_if_fail (src != NULL, 0);
1354 return strlcpy (dest, src, dest_size);
1358 g_strlcat (gchar *dest,
1362 g_return_val_if_fail (dest != NULL, 0);
1363 g_return_val_if_fail (src != NULL, 0);
1365 return strlcat (dest, src, dest_size);
1368 #else /* ! HAVE_STRLCPY */
1371 * Copy string src to buffer dest (of buffer size dest_size). At most
1372 * dest_size-1 characters will be copied. Always NUL terminates
1373 * (unless dest_size == 0). This function does NOT allocate memory.
1374 * Unlike strncpy, this function doesn't pad dest (so it's often faster).
1375 * Returns size of attempted result, strlen(src),
1376 * so if retval >= dest_size, truncation occurred.
1379 g_strlcpy (gchar *dest,
1383 register gchar *d = dest;
1384 register const gchar *s = src;
1385 register gsize n = dest_size;
1387 g_return_val_if_fail (dest != NULL, 0);
1388 g_return_val_if_fail (src != NULL, 0);
1390 /* Copy as many bytes as will fit */
1391 if (n != 0 && --n != 0)
1394 register gchar c = *s++;
1402 /* If not enough room in dest, add NUL and traverse rest of src */
1411 return s - src - 1; /* count does not include NUL */
1416 * Appends string src to buffer dest (of buffer size dest_size).
1417 * At most dest_size-1 characters will be copied.
1418 * Unlike strncat, dest_size is the full size of dest, not the space left over.
1419 * This function does NOT allocate memory.
1420 * This always NUL terminates (unless siz == 0 or there were no NUL characters
1421 * in the dest_size characters of dest to start with).
1422 * Returns size of attempted result, which is
1423 * MIN (dest_size, strlen (original dest)) + strlen (src),
1424 * so if retval >= dest_size, truncation occurred.
1427 g_strlcat (gchar *dest,
1431 register gchar *d = dest;
1432 register const gchar *s = src;
1433 register gsize bytes_left = dest_size;
1434 gsize dlength; /* Logically, MIN (strlen (d), dest_size) */
1436 g_return_val_if_fail (dest != NULL, 0);
1437 g_return_val_if_fail (src != NULL, 0);
1439 /* Find the end of dst and adjust bytes left but don't go past end */
1440 while (*d != 0 && bytes_left-- != 0)
1443 bytes_left = dest_size - dlength;
1445 if (bytes_left == 0)
1446 return dlength + strlen (s);
1450 if (bytes_left != 1)
1459 return dlength + (s - src); /* count does not include NUL */
1461 #endif /* ! HAVE_STRLCPY */
1466 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1468 * Converts all upper case ASCII letters to lower case ASCII letters.
1470 * Return value: a newly-allocated string, with all the upper case
1471 * characters in @str converted to lower case, with
1472 * semantics that exactly match g_ascii_tolower(). (Note
1473 * that this is unlike the old g_strdown(), which modified
1474 * the string in place.)
1477 g_ascii_strdown (const gchar *str,
1482 g_return_val_if_fail (str != NULL, NULL);
1487 result = g_strndup (str, len);
1488 for (s = result; *s; s++)
1489 *s = g_ascii_tolower (*s);
1497 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1499 * Converts all lower case ASCII letters to upper case ASCII letters.
1501 * Return value: a newly allocated string, with all the lower case
1502 * characters in @str converted to upper case, with
1503 * semantics that exactly match g_ascii_toupper(). (Note
1504 * that this is unlike the old g_strup(), which modified
1505 * the string in place.)
1508 g_ascii_strup (const gchar *str,
1513 g_return_val_if_fail (str != NULL, NULL);
1518 result = g_strndup (str, len);
1519 for (s = result; *s; s++)
1520 *s = g_ascii_toupper (*s);
1527 * @string: the string to convert.
1529 * Converts a string to lower case.
1531 * Return value: the string
1533 * Deprecated: This function is totally broken for the reasons discussed in
1534 * the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
1538 g_strdown (gchar *string)
1542 g_return_val_if_fail (string != NULL, NULL);
1544 s = (guchar *) string;
1553 return (gchar *) string;
1558 * @string: the string to convert.
1560 * Converts a string to upper case.
1562 * Return value: the string
1564 * Deprecated: This function is totally broken for the reasons discussed in
1565 * the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
1568 g_strup (gchar *string)
1572 g_return_val_if_fail (string != NULL, NULL);
1574 s = (guchar *) string;
1583 return (gchar *) string;
1587 g_strreverse (gchar *string)
1589 g_return_val_if_fail (string != NULL, NULL);
1593 register gchar *h, *t;
1596 t = string + strlen (string) - 1;
1615 * @c: any character.
1617 * Convert a character to ASCII lower case.
1619 * Unlike the standard C library tolower() function, this only
1620 * recognizes standard ASCII letters and ignores the locale, returning
1621 * all non-ASCII characters unchanged, even if they are lower case
1622 * letters in a particular character set. Also unlike the standard
1623 * library function, this takes and returns a char, not an int, so
1624 * don't call it on %EOF but no need to worry about casting to #guchar
1625 * before passing a possibly non-ASCII character in.
1627 * Return value: the result of converting @c to lower case.
1628 * If @c is not an ASCII upper case letter,
1629 * @c is returned unchanged.
1632 g_ascii_tolower (gchar c)
1634 return g_ascii_isupper (c) ? c - 'A' + 'a' : c;
1639 * @c: any character.
1641 * Convert a character to ASCII upper case.
1643 * Unlike the standard C library toupper() function, this only
1644 * recognizes standard ASCII letters and ignores the locale, returning
1645 * all non-ASCII characters unchanged, even if they are upper case
1646 * letters in a particular character set. Also unlike the standard
1647 * library function, this takes and returns a char, not an int, so
1648 * don't call it on %EOF but no need to worry about casting to #guchar
1649 * before passing a possibly non-ASCII character in.
1651 * Return value: the result of converting @c to upper case.
1652 * If @c is not an ASCII lower case letter,
1653 * @c is returned unchanged.
1656 g_ascii_toupper (gchar c)
1658 return g_ascii_islower (c) ? c - 'a' + 'A' : c;
1662 * g_ascii_digit_value:
1663 * @c: an ASCII character.
1665 * Determines the numeric value of a character as a decimal
1666 * digit. Differs from g_unichar_digit_value() because it takes
1667 * a char, so there's no worry about sign extension if characters
1670 * Return value: If @c is a decimal digit (according to
1671 * g_ascii_isdigit()), its numeric value. Otherwise, -1.
1674 g_ascii_digit_value (gchar c)
1676 if (g_ascii_isdigit (c))
1682 * g_ascii_xdigit_value:
1683 * @c: an ASCII character.
1685 * Determines the numeric value of a character as a hexidecimal
1686 * digit. Differs from g_unichar_xdigit_value() because it takes
1687 * a char, so there's no worry about sign extension if characters
1690 * Return value: If @c is a hex digit (according to
1691 * g_ascii_isxdigit()), its numeric value. Otherwise, -1.
1694 g_ascii_xdigit_value (gchar c)
1696 if (c >= 'A' && c <= 'F')
1697 return c - 'A' + 10;
1698 if (c >= 'a' && c <= 'f')
1699 return c - 'a' + 10;
1700 return g_ascii_digit_value (c);
1704 * g_ascii_strcasecmp:
1705 * @s1: string to compare with @s2.
1706 * @s2: string to compare with @s1.
1708 * Compare two strings, ignoring the case of ASCII characters.
1710 * Unlike the BSD strcasecmp() function, this only recognizes standard
1711 * ASCII letters and ignores the locale, treating all non-ASCII
1712 * characters as if they are not letters.
1714 * Return value: an integer less than, equal to, or greater than
1715 * zero if @s1 is found, respectively, to be less than,
1716 * to match, or to be greater than @s2.
1719 g_ascii_strcasecmp (const gchar *s1,
1724 g_return_val_if_fail (s1 != NULL, 0);
1725 g_return_val_if_fail (s2 != NULL, 0);
1729 c1 = (gint)(guchar) TOLOWER (*s1);
1730 c2 = (gint)(guchar) TOLOWER (*s2);
1736 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1740 * g_ascii_strncasecmp:
1741 * @s1: string to compare with @s2.
1742 * @s2: string to compare with @s1.
1743 * @n: number of characters to compare.
1745 * Compare @s1 and @s2, ignoring the case of ASCII characters and any
1746 * characters after the first @n in each string.
1748 * Unlike the BSD strcasecmp() function, this only recognizes standard
1749 * ASCII letters and ignores the locale, treating all non-ASCII
1750 * characters as if they are not letters.
1752 * Return value: an integer less than, equal to, or greater than zero
1753 * if the first @n bytes of @s1 is found, respectively,
1754 * to be less than, to match, or to be greater than the
1755 * first @n bytes of @s2.
1758 g_ascii_strncasecmp (const gchar *s1,
1764 g_return_val_if_fail (s1 != NULL, 0);
1765 g_return_val_if_fail (s2 != NULL, 0);
1767 while (n && *s1 && *s2)
1770 c1 = (gint)(guchar) TOLOWER (*s1);
1771 c2 = (gint)(guchar) TOLOWER (*s2);
1778 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
1786 * @s2: a string to compare with @s1.
1788 * A case-insensitive string comparison, corresponding to the standard
1789 * strcasecmp() function on platforms which support it.
1791 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1792 * or a positive value if @s1 > @s2.
1794 * Deprecated: See g_strncasecmp() for a discussion of why this function is
1795 * deprecated and how to replace it.
1798 g_strcasecmp (const gchar *s1,
1801 #ifdef HAVE_STRCASECMP
1802 g_return_val_if_fail (s1 != NULL, 0);
1803 g_return_val_if_fail (s2 != NULL, 0);
1805 return strcasecmp (s1, s2);
1809 g_return_val_if_fail (s1 != NULL, 0);
1810 g_return_val_if_fail (s2 != NULL, 0);
1814 /* According to A. Cox, some platforms have islower's that
1815 * don't work right on non-uppercase
1817 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1818 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1824 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1831 * @s2: a string to compare with @s1.
1832 * @n: the maximum number of characters to compare.
1834 * A case-insensitive string comparison, corresponding to the standard
1835 * strncasecmp() function on platforms which support it.
1836 * It is similar to g_strcasecmp() except it only compares the first @n
1837 * characters of the strings.
1839 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1840 * or a positive value if @s1 > @s2.
1842 * Deprecated: The problem with g_strncasecmp() is that it does the
1843 * comparison by calling toupper()/tolower(). These functions are
1844 * locale-specific and operate on single bytes. However, it is impossible
1845 * to handle things correctly from an I18N standpoint by operating on
1846 * bytes, since characters may be multibyte. Thus g_strncasecmp() is
1847 * broken if your string is guaranteed to be ASCII, since it's
1848 * locale-sensitive, and it's broken if your string is localized, since
1849 * it doesn't work on many encodings at all, including UTF-8, EUC-JP,
1852 * There are therefore two replacement functions: g_ascii_strncasecmp(),
1853 * which only works on ASCII and is not locale-sensitive, and
1854 * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8.
1857 g_strncasecmp (const gchar *s1,
1861 #ifdef HAVE_STRNCASECMP
1862 return strncasecmp (s1, s2, n);
1866 g_return_val_if_fail (s1 != NULL, 0);
1867 g_return_val_if_fail (s2 != NULL, 0);
1869 while (n && *s1 && *s2)
1872 /* According to A. Cox, some platforms have islower's that
1873 * don't work right on non-uppercase
1875 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1876 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1883 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
1890 g_strdelimit (gchar *string,
1891 const gchar *delimiters,
1896 g_return_val_if_fail (string != NULL, NULL);
1899 delimiters = G_STR_DELIMITERS;
1901 for (c = string; *c; c++)
1903 if (strchr (delimiters, *c))
1911 g_strcanon (gchar *string,
1912 const gchar *valid_chars,
1917 g_return_val_if_fail (string != NULL, NULL);
1918 g_return_val_if_fail (valid_chars != NULL, NULL);
1920 for (c = string; *c; c++)
1922 if (!strchr (valid_chars, *c))
1930 g_strcompress (const gchar *source)
1932 const gchar *p = source, *octal;
1933 gchar *dest = g_malloc (strlen (source) + 1);
1943 case '0': case '1': case '2': case '3': case '4':
1944 case '5': case '6': case '7':
1947 while ((p < octal + 3) && (*p >= '0') && (*p <= '7'))
1949 *q = (*q * 8) + (*p - '0');
1970 default: /* Also handles \" and \\ */
1985 g_strescape (const gchar *source,
1986 const gchar *exceptions)
1993 g_return_val_if_fail (source != NULL, NULL);
1995 p = (guchar *) source;
1996 /* Each source byte needs maximally four destination chars (\777) */
1997 q = dest = g_malloc (strlen (source) * 4 + 1);
1999 memset (excmap, 0, 256);
2002 guchar *e = (guchar *) exceptions;
2048 if ((*p < ' ') || (*p >= 0177))
2051 *q++ = '0' + (((*p) >> 6) & 07);
2052 *q++ = '0' + (((*p) >> 3) & 07);
2053 *q++ = '0' + ((*p) & 07);
2067 g_strchug (gchar *string)
2071 g_return_val_if_fail (string != NULL, NULL);
2073 for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
2076 g_memmove (string, start, strlen ((gchar *) start) + 1);
2082 g_strchomp (gchar *string)
2086 g_return_val_if_fail (string != NULL, NULL);
2088 len = strlen (string);
2091 if (g_ascii_isspace ((guchar) string[len]))
2102 * @string: a string to split.
2103 * @delimiter: a string which specifies the places at which to split the string.
2104 * The delimiter is not included in any of the resulting strings, unless
2105 * @max_tokens is reached.
2106 * @max_tokens: the maximum number of pieces to split @string into. If this is
2107 * less than 1, the string is split completely.
2109 * Splits a string into a maximum of @max_tokens pieces, using the given
2110 * @delimiter. If @max_tokens is reached, the remainder of @string is appended
2111 * to the last token.
2113 * As a special case, the result of splitting the empty string "" is an empty
2114 * vector, not a vector containing a single string. The reason for this
2115 * special case is that being able to represent a empty vector is typically
2116 * more useful than consistent handling of empty elements. If you do need
2117 * to represent empty elements, you'll need to check for the empty string
2118 * before calling g_strsplit().
2120 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2121 * g_strfreev() to free it.
2124 g_strsplit (const gchar *string,
2125 const gchar *delimiter,
2128 GSList *string_list = NULL, *slist;
2129 gchar **str_array, *s;
2131 const gchar *remainder;
2133 g_return_val_if_fail (string != NULL, NULL);
2134 g_return_val_if_fail (delimiter != NULL, NULL);
2135 g_return_val_if_fail (delimiter[0] != '\0', NULL);
2138 max_tokens = G_MAXINT;
2141 s = strstr (remainder, delimiter);
2144 gsize delimiter_len = strlen (delimiter);
2146 while (--max_tokens && s)
2151 len = s - remainder;
2152 new_string = g_new (gchar, len + 1);
2153 strncpy (new_string, remainder, len);
2154 new_string[len] = 0;
2155 string_list = g_slist_prepend (string_list, new_string);
2157 remainder = s + delimiter_len;
2158 s = strstr (remainder, delimiter);
2164 string_list = g_slist_prepend (string_list, g_strdup (remainder));
2167 str_array = g_new (gchar*, n + 1);
2169 str_array[n--] = NULL;
2170 for (slist = string_list; slist; slist = slist->next)
2171 str_array[n--] = slist->data;
2173 g_slist_free (string_list);
2180 * @string: The string to be tokenized
2181 * @delimiters: A nul-terminated string containing bytes that are used
2182 * to split the string.
2183 * @max_tokens: The maximum number of tokens to split @string into.
2184 * If this is less than 1, the string is split completely
2186 * Splits @string into a number of tokens not containing any of the characters
2187 * in @delimiter. A token is the (possibly empty) longest string that does not
2188 * contain any of the characters in @delimiters. If @max_tokens is reached, the
2189 * remainder is appended to the last token.
2191 * For example the result of g_strtokenize ("abc:def/ghi", ":/", -1) is a
2192 * %NULL-terminated vector containing the three strings "abc", "def",
2195 * The result if g_strtokenize (":def/ghi:", ":/", -1) is a %NULL-terminated
2196 * vector containing the four strings "", "def", "ghi", and "".
2198 * As a special case, the result of splitting the empty string "" is an empty
2199 * vector, not a vector containing a single string. The reason for this
2200 * special case is that being able to represent a empty vector is typically
2201 * more useful than consistent handling of empty elements. If you do need
2202 * to represent empty elements, you'll need to check for the empty string
2203 * before calling g_strsplit().
2205 * Note that this function works on bytes not characters, so it can't be used
2206 * to delimit UTF-8 strings for anything but ASCII characters.
2208 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2209 * g_strfreev() to free it.
2214 g_strsplit_set (const gchar *string,
2215 const gchar *delimiters,
2218 gboolean delim_table[256];
2219 GSList *tokens, *list;
2222 const gchar *current;
2226 g_return_val_if_fail (string != NULL, NULL);
2227 g_return_val_if_fail (delimiters != NULL, NULL);
2230 max_tokens = G_MAXINT;
2232 if (*string == '\0')
2234 result = g_new (char *, 1);
2239 memset (delim_table, FALSE, sizeof (delim_table));
2240 for (s = delimiters; *s != '\0'; ++s)
2241 delim_table[*(guchar *)s] = TRUE;
2246 s = current = string;
2249 if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens)
2253 token = g_strndup (current, s - current);
2254 tokens = g_slist_prepend (tokens, token);
2263 token = g_strndup (current, s - current);
2264 tokens = g_slist_prepend (tokens, token);
2267 result = g_new (gchar *, n_tokens + 1);
2269 result[n_tokens] = NULL;
2270 for (list = tokens; list != NULL; list = list->next)
2271 result[--n_tokens] = list->data;
2273 g_slist_free (tokens);
2280 * @str_array: a %NULL-terminated array of strings to free.
2282 * Frees a %NULL-terminated array of strings, and the array itself.
2283 * If called on a %NULL value, g_strfreev() simply returns.
2286 g_strfreev (gchar **str_array)
2292 for(i = 0; str_array[i] != NULL; i++)
2293 g_free(str_array[i]);
2301 * @str_array: %NULL-terminated array of strings.
2303 * Copies %NULL-terminated array of strings. The copy is a deep copy;
2304 * the new array should be freed by first freeing each string, then
2305 * the array itself. g_strfreev() does this for you. If called
2306 * on a %NULL value, g_strdupv() simply returns %NULL.
2308 * Return value: a new %NULL-terminated array of strings.
2311 g_strdupv (gchar **str_array)
2319 while (str_array[i])
2322 retval = g_new (gchar*, i + 1);
2325 while (str_array[i])
2327 retval[i] = g_strdup (str_array[i]);
2339 g_strjoinv (const gchar *separator,
2345 g_return_val_if_fail (str_array != NULL, NULL);
2347 if (separator == NULL)
2354 gsize separator_len;
2356 separator_len = strlen (separator);
2357 /* First part, getting length */
2358 len = 1 + strlen (str_array[0]);
2359 for (i = 1; str_array[i] != NULL; i++)
2360 len += strlen (str_array[i]);
2361 len += separator_len * (i - 1);
2363 /* Second part, building string */
2364 string = g_new (gchar, len);
2365 ptr = g_stpcpy (string, *str_array);
2366 for (i = 1; str_array[i] != NULL; i++)
2368 ptr = g_stpcpy (ptr, separator);
2369 ptr = g_stpcpy (ptr, str_array[i]);
2373 string = g_strdup ("");
2379 g_strjoin (const gchar *separator,
2385 gsize separator_len;
2388 if (separator == NULL)
2391 separator_len = strlen (separator);
2393 va_start (args, separator);
2395 s = va_arg (args, gchar*);
2399 /* First part, getting length */
2400 len = 1 + strlen (s);
2402 s = va_arg (args, gchar*);
2405 len += separator_len + strlen (s);
2406 s = va_arg (args, gchar*);
2410 /* Second part, building string */
2411 string = g_new (gchar, len);
2413 va_start (args, separator);
2415 s = va_arg (args, gchar*);
2416 ptr = g_stpcpy (string, s);
2418 s = va_arg (args, gchar*);
2421 ptr = g_stpcpy (ptr, separator);
2422 ptr = g_stpcpy (ptr, s);
2423 s = va_arg (args, gchar*);
2427 string = g_strdup ("");
2437 * @haystack: a string.
2438 * @haystack_len: the maximum length of @haystack.
2439 * @needle: the string to search for.
2441 * Searches the string @haystack for the first occurrence
2442 * of the string @needle, limiting the length of the search
2445 * Return value: a pointer to the found occurrence, or
2446 * %NULL if not found.
2449 g_strstr_len (const gchar *haystack,
2450 gssize haystack_len,
2451 const gchar *needle)
2453 g_return_val_if_fail (haystack != NULL, NULL);
2454 g_return_val_if_fail (needle != NULL, NULL);
2456 if (haystack_len < 0)
2457 return strstr (haystack, needle);
2460 const gchar *p = haystack;
2461 gsize needle_len = strlen (needle);
2465 if (needle_len == 0)
2466 return (gchar *)haystack;
2468 if (haystack_len < needle_len)
2471 end = haystack + haystack_len - needle_len;
2473 while (*p && p <= end)
2475 for (i = 0; i < needle_len; i++)
2476 if (p[i] != needle[i])
2491 * @haystack: a nul-terminated string.
2492 * @needle: the nul-terminated string to search for.
2494 * Searches the string @haystack for the last occurrence
2495 * of the string @needle.
2497 * Return value: a pointer to the found occurrence, or
2498 * %NULL if not found.
2501 g_strrstr (const gchar *haystack,
2502 const gchar *needle)
2509 g_return_val_if_fail (haystack != NULL, NULL);
2510 g_return_val_if_fail (needle != NULL, NULL);
2512 needle_len = strlen (needle);
2513 haystack_len = strlen (haystack);
2515 if (needle_len == 0)
2516 return (gchar *)haystack;
2518 if (haystack_len < needle_len)
2521 p = haystack + haystack_len - needle_len;
2523 while (p >= haystack)
2525 for (i = 0; i < needle_len; i++)
2526 if (p[i] != needle[i])
2540 * @haystack: a nul-terminated string.
2541 * @haystack_len: the maximum length of @haystack.
2542 * @needle: the nul-terminated string to search for.
2544 * Searches the string @haystack for the last occurrence
2545 * of the string @needle, limiting the length of the search
2548 * Return value: a pointer to the found occurrence, or
2549 * %NULL if not found.
2552 g_strrstr_len (const gchar *haystack,
2553 gssize haystack_len,
2554 const gchar *needle)
2556 g_return_val_if_fail (haystack != NULL, NULL);
2557 g_return_val_if_fail (needle != NULL, NULL);
2559 if (haystack_len < 0)
2560 return g_strrstr (haystack, needle);
2563 gsize needle_len = strlen (needle);
2564 const gchar *haystack_max = haystack + haystack_len;
2565 const gchar *p = haystack;
2568 while (p < haystack_max && *p)
2571 if (p < haystack + needle_len)
2576 while (p >= haystack)
2578 for (i = 0; i < needle_len; i++)
2579 if (p[i] != needle[i])
2595 * @str: a nul-terminated string.
2596 * @suffix: the nul-terminated suffix to look for.
2598 * Looks whether the string @str ends with @suffix.
2600 * Return value: %TRUE if @str end with @suffix, %FALSE otherwise.
2605 g_str_has_suffix (const gchar *str,
2606 const gchar *suffix)
2611 g_return_val_if_fail (str != NULL, FALSE);
2612 g_return_val_if_fail (suffix != NULL, FALSE);
2614 str_len = strlen (str);
2615 suffix_len = strlen (suffix);
2617 if (str_len < suffix_len)
2620 return strcmp (str + str_len - suffix_len, suffix) == 0;
2625 * @str: a nul-terminated string.
2626 * @prefix: the nul-terminated prefix to look for.
2628 * Looks whether the string @str begins with @prefix.
2630 * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise.
2635 g_str_has_prefix (const gchar *str,
2636 const gchar *prefix)
2641 g_return_val_if_fail (str != NULL, FALSE);
2642 g_return_val_if_fail (prefix != NULL, FALSE);
2644 str_len = strlen (str);
2645 prefix_len = strlen (prefix);
2647 if (str_len < prefix_len)
2650 return strncmp (str, prefix, prefix_len) == 0;
2657 * @msgval: another string
2659 * An auxiliary function for gettext() support (see Q_()).
2661 * Return value: @msgval, unless @msgval is identical to @msgid and contains
2662 * a '|' character, in which case a pointer to the substring of msgid after
2663 * the first '|' character is returned.
2667 G_CONST_RETURN gchar *
2668 g_strip_context (const gchar *msgid,
2669 const gchar *msgval)
2671 if (msgval == msgid)
2673 const char *c = strchr (msgid, '|');