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)
49 #include "gprintfint.h"
55 /* do not include <unistd.h> in this place since it
56 * interferes with g_strsignal() on some OSes
59 static const guint16 ascii_table_data[256] = {
60 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
61 0x004, 0x104, 0x104, 0x004, 0x104, 0x104, 0x004, 0x004,
62 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
63 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
64 0x140, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
65 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
66 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459,
67 0x459, 0x459, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
68 0x0d0, 0x653, 0x653, 0x653, 0x653, 0x653, 0x653, 0x253,
69 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
70 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
71 0x253, 0x253, 0x253, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
72 0x0d0, 0x473, 0x473, 0x473, 0x473, 0x473, 0x473, 0x073,
73 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
74 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
75 0x073, 0x073, 0x073, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x004
76 /* the upper 128 are all zeroes */
79 const guint16 * const g_ascii_table = ascii_table_data;
82 g_strdup (const gchar *str)
89 length = strlen (str) + 1;
90 new_str = g_new (char, length);
91 memcpy (new_str, str, length);
100 g_memdup (gconstpointer mem,
107 new_mem = g_malloc (byte_size);
108 memcpy (new_mem, mem, byte_size);
117 g_strndup (const gchar *str,
124 new_str = g_new (gchar, n + 1);
125 strncpy (new_str, str, n);
135 g_strnfill (gsize length,
140 str = g_new (gchar, length + 1);
141 memset (str, (guchar)fill_char, length);
149 * @dest: destination buffer.
150 * @src: source string.
152 * Copies a nul-terminated string into the dest buffer, include the
153 * trailing nul, and return a pointer to the trailing nul byte.
154 * This is useful for concatenating multiple strings together
155 * without having to repeatedly scan for the end.
157 * Return value: a pointer to trailing nul byte.
160 g_stpcpy (gchar *dest,
164 g_return_val_if_fail (dest != NULL, NULL);
165 g_return_val_if_fail (src != NULL, NULL);
166 return stpcpy (dest, src);
168 register gchar *d = dest;
169 register const gchar *s = src;
171 g_return_val_if_fail (dest != NULL, NULL);
172 g_return_val_if_fail (src != NULL, NULL);
175 while (*s++ != '\0');
182 g_strdup_vprintf (const gchar *format,
185 gchar *string = NULL;
187 g_vasprintf (&string, format, args);
193 g_strdup_printf (const gchar *format,
199 va_start (args, format);
200 buffer = g_strdup_vprintf (format, args);
207 g_strconcat (const gchar *string1, ...)
218 l = 1 + strlen (string1);
219 va_start (args, string1);
220 s = va_arg (args, gchar*);
224 s = va_arg (args, gchar*);
228 concat = g_new (gchar, l);
231 ptr = g_stpcpy (ptr, string1);
232 va_start (args, string1);
233 s = va_arg (args, gchar*);
236 ptr = g_stpcpy (ptr, s);
237 s = va_arg (args, gchar*);
246 * @nptr: the string to convert to a numeric value.
247 * @endptr: if non-%NULL, it returns the character after
248 * the last character used in the conversion.
250 * Converts a string to a #gdouble value.
251 * It calls the standard strtod() function to handle the conversion, but
252 * if the string is not completely converted it attempts the conversion
253 * again with g_ascii_strtod(), and returns the best match.
255 * This function should seldomly be used. The normal situation when reading
256 * numbers not for human consumption is to use g_ascii_strtod(). Only when
257 * you know that you must expect both locale formatted and C formatted numbers
258 * should you use this. Make sure that you don't pass strings such as comma
259 * separated lists of values, since the commas may be interpreted as a decimal
260 * point in some locales, causing unexpected results.
262 * Return value: the #gdouble value.
265 g_strtod (const gchar *nptr,
273 g_return_val_if_fail (nptr != NULL, 0);
278 val_1 = strtod (nptr, &fail_pos_1);
280 if (fail_pos_1 && fail_pos_1[0] != 0)
281 val_2 = g_ascii_strtod (nptr, &fail_pos_2);
283 if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
286 *endptr = fail_pos_1;
292 *endptr = fail_pos_2;
299 * @nptr: the string to convert to a numeric value.
300 * @endptr: if non-%NULL, it returns the character after
301 * the last character used in the conversion.
303 * Converts a string to a #gdouble value.
304 * This function behaves like the standard strtod() function
305 * does in the C locale. It does this without actually
306 * changing the current locale, since that would not be
309 * This function is typically used when reading configuration
310 * files or other non-user input that should be locale independent.
311 * To handle input from the user you should normally use the
312 * locale-sensitive system strtod() function.
314 * To convert from a #gdouble to a string in a locale-insensitive
315 * way, use g_ascii_dtostr().
317 * If the correct value would cause overflow, plus or minus %HUGE_VAL
318 * is returned (according to the sign of the value), and %ERANGE is
319 * stored in %errno. If the correct value would cause underflow,
320 * zero is returned and %ERANGE is stored in %errno.
322 * This function resets %errno before calling strtod() so that
323 * you can reliably detect overflow and underflow.
325 * Return value: the #gdouble value.
328 g_ascii_strtod (const gchar *nptr,
333 struct lconv *locale_data;
334 const char *decimal_point;
335 int decimal_point_len;
336 const char *p, *decimal_point_pos;
337 const char *end = NULL; /* Silence gcc */
340 g_return_val_if_fail (nptr != NULL, 0);
344 locale_data = localeconv ();
345 decimal_point = locale_data->decimal_point;
346 decimal_point_len = strlen (decimal_point);
348 g_assert (decimal_point_len != 0);
350 decimal_point_pos = NULL;
353 if (decimal_point[0] != '.' ||
354 decimal_point[1] != 0)
357 /* Skip leading space */
358 while (g_ascii_isspace (*p))
361 /* Skip leading optional sign */
362 if (*p == '+' || *p == '-')
366 (p[1] == 'x' || p[1] == 'X'))
369 /* HEX - find the (optional) decimal point */
371 while (g_ascii_isxdigit (*p))
375 decimal_point_pos = p++;
377 while (g_ascii_isxdigit (*p))
380 if (*p == 'p' || *p == 'P')
382 if (*p == '+' || *p == '-')
384 while (g_ascii_isdigit (*p))
389 else if (g_ascii_isdigit (*p) || *p == '.')
391 while (g_ascii_isdigit (*p))
395 decimal_point_pos = p++;
397 while (g_ascii_isdigit (*p))
400 if (*p == 'e' || *p == 'E')
402 if (*p == '+' || *p == '-')
404 while (g_ascii_isdigit (*p))
409 /* For the other cases, we need not convert the decimal point */
412 if (decimal_point_pos)
416 /* We need to convert the '.' to the locale specific decimal point */
417 copy = g_malloc (end - nptr + 1 + decimal_point_len);
420 memcpy (c, nptr, decimal_point_pos - nptr);
421 c += decimal_point_pos - nptr;
422 memcpy (c, decimal_point, decimal_point_len);
423 c += decimal_point_len;
424 memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
425 c += end - (decimal_point_pos + 1);
429 val = strtod (copy, &fail_pos);
430 strtod_errno = errno;
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);
447 copy = g_malloc (end - (char *)nptr + 1);
448 memcpy (copy, nptr, end - nptr);
449 *(copy + (end - (char *)nptr)) = 0;
452 val = strtod (copy, &fail_pos);
453 strtod_errno = errno;
457 fail_pos = (char *)nptr + (fail_pos - copy);
465 val = strtod (nptr, &fail_pos);
466 strtod_errno = errno;
472 errno = strtod_errno;
480 * @buffer: A buffer to place the resulting string in
481 * @buf_len: The length of the buffer.
482 * @d: The #gdouble to convert
484 * Converts a #gdouble to a string, using the '.' as
487 * This functions generates enough precision that converting
488 * the string back using g_ascii_strtod() gives the same machine-number
489 * (on machines with IEEE compatible 64bit doubles). It is
490 * guaranteed that the size of the resulting string will never
491 * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes.
493 * Return value: The pointer to the buffer with the converted string.
496 g_ascii_dtostr (gchar *buffer,
500 return g_ascii_formatd (buffer, buf_len, "%.17g", d);
505 * @buffer: A buffer to place the resulting string in
506 * @buf_len: The length of the buffer.
507 * @format: The printf()-style format to use for the
508 * code to use for converting.
509 * @d: The #gdouble to convert
511 * Converts a #gdouble to a string, using the '.' as
512 * decimal point. To format the number you pass in
513 * a printf()-style format string. Allowed conversion
514 * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
516 * If you just want to want to serialize the value into a
517 * string, use g_ascii_dtostr().
519 * Return value: The pointer to the buffer with the converted string.
522 g_ascii_formatd (gchar *buffer,
527 struct lconv *locale_data;
528 const char *decimal_point;
529 int decimal_point_len;
534 g_return_val_if_fail (buffer != NULL, NULL);
535 g_return_val_if_fail (format[0] == '%', NULL);
536 g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL);
538 format_char = format[strlen (format) - 1];
540 g_return_val_if_fail (format_char == 'e' || format_char == 'E' ||
541 format_char == 'f' || format_char == 'F' ||
542 format_char == 'g' || format_char == 'G',
545 if (format[0] != '%')
548 if (strpbrk (format + 1, "'l%"))
551 if (!(format_char == 'e' || format_char == 'E' ||
552 format_char == 'f' || format_char == 'F' ||
553 format_char == 'g' || format_char == 'G'))
557 _g_snprintf (buffer, buf_len, format, d);
559 locale_data = localeconv ();
560 decimal_point = locale_data->decimal_point;
561 decimal_point_len = strlen (decimal_point);
563 g_assert (decimal_point_len != 0);
565 if (decimal_point[0] != '.' ||
566 decimal_point[1] != 0)
570 if (*p == '+' || *p == '-')
573 while (isdigit ((guchar)*p))
576 if (strncmp (p, decimal_point, decimal_point_len) == 0)
580 if (decimal_point_len > 1) {
581 rest_len = strlen (p + (decimal_point_len-1));
582 memmove (p, p + (decimal_point_len-1),
595 * @nptr: the string to convert to a numeric value.
596 * @endptr: if non-%NULL, it returns the character after
597 * the last character used in the conversion.
598 * @base: to be used for the conversion, 2..36 or 0
600 * Converts a string to a #guint64 value.
601 * This function behaves like the standard strtoull() function
602 * does in the C locale. It does this without actually
603 * changing the current locale, since that would not be
606 * This function is typically used when reading configuration
607 * files or other non-user input that should be locale independent.
608 * To handle input from the user you should normally use the
609 * locale-sensitive system strtoull() function.
611 * If the correct value would cause overflow, %G_MAXUINT64
612 * is returned, and %ERANGE is stored in %errno.
614 * Return value: the #guint64 value.
619 g_ascii_strtoull (const gchar *nptr,
623 /* this code is based on on the strtol(3) code from GNU libc released under
624 * the GNU Lesser General Public License.
626 * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
627 * Free Software Foundation, Inc.
629 #define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
630 (c) == '\r' || (c) == '\t' || (c) == '\v')
631 #define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z')
632 #define ISLOWER(c) ((c) >= 'a' && (c) <= 'z')
633 #define ISALPHA(c) (ISUPPER (c) || ISLOWER (c))
634 #define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c))
635 #define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c))
636 gboolean negative, overflow;
640 const gchar *s, *save;
643 g_return_val_if_fail (nptr != NULL, 0);
645 if (base == 1 || base > 36)
653 /* Skip white space. */
659 /* Check for a sign. */
669 /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
672 if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X')
683 /* Save the pointer so we can check later if anything happened. */
685 cutoff = G_MAXUINT64 / base;
686 cutlim = G_MAXUINT64 % base;
693 if (c >= '0' && c <= '9')
695 else if (ISALPHA (c))
696 c = TOUPPER (c) - 'A' + 10;
701 /* Check for overflow. */
702 if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
711 /* Check if anything actually happened. */
715 /* Store in ENDPTR the address of one character
716 past the last character we converted. */
718 *endptr = (gchar*) s;
726 /* Return the result of the appropriate sign. */
727 return negative ? -ui64 : ui64;
730 /* We must handle a special case here: the base is 0 or 16 and the
731 first two characters are '0' and 'x', but the rest are no
732 hexadecimal digits. This is no error case. We return 0 and
733 ENDPTR points to the `x`. */
736 if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
738 *endptr = (gchar*) &save[-1];
740 /* There was no number to convert. */
741 *endptr = (gchar*) nptr;
747 G_CONST_RETURN gchar*
748 g_strerror (gint errnum)
750 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
752 int saved_errno = errno;
755 const char *msg_locale;
757 msg_locale = strerror (errnum);
758 if (g_get_charset (NULL))
765 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
768 /* Stick in the quark table so that we can return a static result
770 GQuark msg_quark = g_quark_from_string (msg_utf8);
773 msg_utf8 = (gchar *) g_quark_to_string (msg_quark);
782 case E2BIG: return "argument list too long";
785 case EACCES: return "permission denied";
788 case EADDRINUSE: return "address already in use";
791 case EADDRNOTAVAIL: return "can't assign requested address";
794 case EADV: return "advertise error";
797 case EAFNOSUPPORT: return "address family not supported by protocol family";
800 case EAGAIN: return "try again";
803 case EALIGN: return "EALIGN";
806 case EALREADY: return "operation already in progress";
809 case EBADE: return "bad exchange descriptor";
812 case EBADF: return "bad file number";
815 case EBADFD: return "file descriptor in bad state";
818 case EBADMSG: return "not a data message";
821 case EBADR: return "bad request descriptor";
824 case EBADRPC: return "RPC structure is bad";
827 case EBADRQC: return "bad request code";
830 case EBADSLT: return "invalid slot";
833 case EBFONT: return "bad font file format";
836 case EBUSY: return "mount device busy";
839 case ECHILD: return "no children";
842 case ECHRNG: return "channel number out of range";
845 case ECOMM: return "communication error on send";
848 case ECONNABORTED: return "software caused connection abort";
851 case ECONNREFUSED: return "connection refused";
854 case ECONNRESET: return "connection reset by peer";
856 #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
857 case EDEADLK: return "resource deadlock avoided";
860 case EDEADLOCK: return "resource deadlock avoided";
863 case EDESTADDRREQ: return "destination address required";
866 case EDIRTY: return "mounting a dirty fs w/o force";
869 case EDOM: return "math argument out of range";
872 case EDOTDOT: return "cross mount point";
875 case EDQUOT: return "disk quota exceeded";
878 case EDUPPKG: return "duplicate package name";
881 case EEXIST: return "file already exists";
884 case EFAULT: return "bad address in system call argument";
887 case EFBIG: return "file too large";
890 case EHOSTDOWN: return "host is down";
893 case EHOSTUNREACH: return "host is unreachable";
896 case EIDRM: return "identifier removed";
899 case EINIT: return "initialization error";
902 case EINPROGRESS: return "operation now in progress";
905 case EINTR: return "interrupted system call";
908 case EINVAL: return "invalid argument";
911 case EIO: return "I/O error";
914 case EISCONN: return "socket is already connected";
917 case EISDIR: return "is a directory";
920 case EISNAM: return "is a name file";
923 case ELBIN: return "ELBIN";
926 case EL2HLT: return "level 2 halted";
929 case EL2NSYNC: return "level 2 not synchronized";
932 case EL3HLT: return "level 3 halted";
935 case EL3RST: return "level 3 reset";
938 case ELIBACC: return "can not access a needed shared library";
941 case ELIBBAD: return "accessing a corrupted shared library";
944 case ELIBEXEC: return "can not exec a shared library directly";
947 case ELIBMAX: return "attempting to link in more shared libraries than system limit";
950 case ELIBSCN: return ".lib section in a.out corrupted";
953 case ELNRNG: return "link number out of range";
956 case ELOOP: return "too many levels of symbolic links";
959 case EMFILE: return "too many open files";
962 case EMLINK: return "too many links";
965 case EMSGSIZE: return "message too long";
968 case EMULTIHOP: return "multihop attempted";
971 case ENAMETOOLONG: return "file name too long";
974 case ENAVAIL: return "not available";
977 case ENET: return "ENET";
980 case ENETDOWN: return "network is down";
983 case ENETRESET: return "network dropped connection on reset";
986 case ENETUNREACH: return "network is unreachable";
989 case ENFILE: return "file table overflow";
992 case ENOANO: return "anode table overflow";
994 #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
995 case ENOBUFS: return "no buffer space available";
998 case ENOCSI: return "no CSI structure available";
1001 case ENODATA: return "no data available";
1004 case ENODEV: return "no such device";
1007 case ENOENT: return "no such file or directory";
1010 case ENOEXEC: return "exec format error";
1013 case ENOLCK: return "no locks available";
1016 case ENOLINK: return "link has be severed";
1019 case ENOMEM: return "not enough memory";
1022 case ENOMSG: return "no message of desired type";
1025 case ENONET: return "machine is not on the network";
1028 case ENOPKG: return "package not installed";
1031 case ENOPROTOOPT: return "bad proocol option";
1034 case ENOSPC: return "no space left on device";
1037 case ENOSR: return "out of stream resources";
1040 case ENOSTR: return "not a stream device";
1043 case ENOSYM: return "unresolved symbol name";
1046 case ENOSYS: return "function not implemented";
1049 case ENOTBLK: return "block device required";
1052 case ENOTCONN: return "socket is not connected";
1055 case ENOTDIR: return "not a directory";
1058 case ENOTEMPTY: return "directory not empty";
1061 case ENOTNAM: return "not a name file";
1064 case ENOTSOCK: return "socket operation on non-socket";
1067 case ENOTTY: return "inappropriate device for ioctl";
1070 case ENOTUNIQ: return "name not unique on network";
1073 case ENXIO: return "no such device or address";
1076 case EOPNOTSUPP: return "operation not supported on socket";
1079 case EPERM: return "not owner";
1082 case EPFNOSUPPORT: return "protocol family not supported";
1085 case EPIPE: return "broken pipe";
1088 case EPROCLIM: return "too many processes";
1091 case EPROCUNAVAIL: return "bad procedure for program";
1093 #ifdef EPROGMISMATCH
1094 case EPROGMISMATCH: return "program version wrong";
1097 case EPROGUNAVAIL: return "RPC program not available";
1100 case EPROTO: return "protocol error";
1102 #ifdef EPROTONOSUPPORT
1103 case EPROTONOSUPPORT: return "protocol not suppored";
1106 case EPROTOTYPE: return "protocol wrong type for socket";
1109 case ERANGE: return "math result unrepresentable";
1111 #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
1112 case EREFUSED: return "EREFUSED";
1115 case EREMCHG: return "remote address changed";
1118 case EREMDEV: return "remote device";
1121 case EREMOTE: return "pathname hit remote file system";
1124 case EREMOTEIO: return "remote i/o error";
1126 #ifdef EREMOTERELEASE
1127 case EREMOTERELEASE: return "EREMOTERELEASE";
1130 case EROFS: return "read-only file system";
1133 case ERPCMISMATCH: return "RPC version is wrong";
1136 case ERREMOTE: return "object is remote";
1139 case ESHUTDOWN: return "can't send afer socket shutdown";
1141 #ifdef ESOCKTNOSUPPORT
1142 case ESOCKTNOSUPPORT: return "socket type not supported";
1145 case ESPIPE: return "invalid seek";
1148 case ESRCH: return "no such process";
1151 case ESRMNT: return "srmount error";
1154 case ESTALE: return "stale remote file handle";
1157 case ESUCCESS: return "Error 0";
1160 case ETIME: return "timer expired";
1163 case ETIMEDOUT: return "connection timed out";
1166 case ETOOMANYREFS: return "too many references: can't splice";
1169 case ETXTBSY: return "text file or pseudo-device busy";
1172 case EUCLEAN: return "structure needs cleaning";
1175 case EUNATCH: return "protocol driver not attached";
1178 case EUSERS: return "too many users";
1181 case EVERSION: return "version mismatch";
1183 #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
1184 case EWOULDBLOCK: return "operation would block";
1187 case EXDEV: return "cross-domain link";
1190 case EXFULL: return "message tables full";
1193 #else /* NO_SYS_ERRLIST */
1194 extern int sys_nerr;
1195 extern char *sys_errlist[];
1197 if ((errnum > 0) && (errnum <= sys_nerr))
1198 return sys_errlist [errnum];
1199 #endif /* NO_SYS_ERRLIST */
1201 msg = g_static_private_get (&msg_private);
1204 msg = g_new (gchar, 64);
1205 g_static_private_set (&msg_private, msg, g_free);
1208 _g_sprintf (msg, "unknown error (%d)", errnum);
1210 errno = saved_errno;
1214 G_CONST_RETURN gchar*
1215 g_strsignal (gint signum)
1217 static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
1220 #ifdef HAVE_STRSIGNAL
1221 const char *msg_locale;
1223 #if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN)
1224 extern const char *strsignal(int);
1226 /* this is declared differently (const) in string.h on BeOS */
1227 extern char *strsignal (int sig);
1228 #endif /* !G_OS_BEOS && !G_WITH_CYGWIN */
1229 msg_locale = strsignal (signum);
1230 if (g_get_charset (NULL))
1234 gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
1237 /* Stick in the quark table so that we can return a static result
1239 GQuark msg_quark = g_quark_from_string (msg_utf8);
1242 return g_quark_to_string (msg_quark);
1245 #elif NO_SYS_SIGLIST
1249 case SIGHUP: return "Hangup";
1252 case SIGINT: return "Interrupt";
1255 case SIGQUIT: return "Quit";
1258 case SIGILL: return "Illegal instruction";
1261 case SIGTRAP: return "Trace/breakpoint trap";
1264 case SIGABRT: return "IOT trap/Abort";
1267 case SIGBUS: return "Bus error";
1270 case SIGFPE: return "Floating point exception";
1273 case SIGKILL: return "Killed";
1276 case SIGUSR1: return "User defined signal 1";
1279 case SIGSEGV: return "Segmentation fault";
1282 case SIGUSR2: return "User defined signal 2";
1285 case SIGPIPE: return "Broken pipe";
1288 case SIGALRM: return "Alarm clock";
1291 case SIGTERM: return "Terminated";
1294 case SIGSTKFLT: return "Stack fault";
1297 case SIGCHLD: return "Child exited";
1300 case SIGCONT: return "Continued";
1303 case SIGSTOP: return "Stopped (signal)";
1306 case SIGTSTP: return "Stopped";
1309 case SIGTTIN: return "Stopped (tty input)";
1312 case SIGTTOU: return "Stopped (tty output)";
1315 case SIGURG: return "Urgent condition";
1318 case SIGXCPU: return "CPU time limit exceeded";
1321 case SIGXFSZ: return "File size limit exceeded";
1324 case SIGVTALRM: return "Virtual time alarm";
1327 case SIGPROF: return "Profile signal";
1330 case SIGWINCH: return "Window size changed";
1333 case SIGIO: return "Possible I/O";
1336 case SIGPWR: return "Power failure";
1339 case SIGUNUSED: return "Unused signal";
1342 #else /* NO_SYS_SIGLIST */
1344 #ifdef NO_SYS_SIGLIST_DECL
1345 extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
1348 return (char*) /* this function should return const --josh */ sys_siglist [signum];
1349 #endif /* NO_SYS_SIGLIST */
1351 msg = g_static_private_get (&msg_private);
1354 msg = g_new (gchar, 64);
1355 g_static_private_set (&msg_private, msg, g_free);
1358 _g_sprintf (msg, "unknown signal (%d)", signum);
1363 /* Functions g_strlcpy and g_strlcat were originally developed by
1364 * Todd C. Miller <Todd.Miller@courtesan.com> to simplify writing secure code.
1365 * See ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/strlcpy.3
1366 * for more information.
1370 /* Use the native ones, if available; they might be implemented in assembly */
1372 g_strlcpy (gchar *dest,
1376 g_return_val_if_fail (dest != NULL, 0);
1377 g_return_val_if_fail (src != NULL, 0);
1379 return strlcpy (dest, src, dest_size);
1383 g_strlcat (gchar *dest,
1387 g_return_val_if_fail (dest != NULL, 0);
1388 g_return_val_if_fail (src != NULL, 0);
1390 return strlcat (dest, src, dest_size);
1393 #else /* ! HAVE_STRLCPY */
1396 * Copy string src to buffer dest (of buffer size dest_size). At most
1397 * dest_size-1 characters will be copied. Always NUL terminates
1398 * (unless dest_size == 0). This function does NOT allocate memory.
1399 * Unlike strncpy, this function doesn't pad dest (so it's often faster).
1400 * Returns size of attempted result, strlen(src),
1401 * so if retval >= dest_size, truncation occurred.
1404 g_strlcpy (gchar *dest,
1408 register gchar *d = dest;
1409 register const gchar *s = src;
1410 register gsize n = dest_size;
1412 g_return_val_if_fail (dest != NULL, 0);
1413 g_return_val_if_fail (src != NULL, 0);
1415 /* Copy as many bytes as will fit */
1416 if (n != 0 && --n != 0)
1419 register gchar c = *s++;
1427 /* If not enough room in dest, add NUL and traverse rest of src */
1436 return s - src - 1; /* count does not include NUL */
1441 * Appends string src to buffer dest (of buffer size dest_size).
1442 * At most dest_size-1 characters will be copied.
1443 * Unlike strncat, dest_size is the full size of dest, not the space left over.
1444 * This function does NOT allocate memory.
1445 * This always NUL terminates (unless siz == 0 or there were no NUL characters
1446 * in the dest_size characters of dest to start with).
1447 * Returns size of attempted result, which is
1448 * MIN (dest_size, strlen (original dest)) + strlen (src),
1449 * so if retval >= dest_size, truncation occurred.
1452 g_strlcat (gchar *dest,
1456 register gchar *d = dest;
1457 register const gchar *s = src;
1458 register gsize bytes_left = dest_size;
1459 gsize dlength; /* Logically, MIN (strlen (d), dest_size) */
1461 g_return_val_if_fail (dest != NULL, 0);
1462 g_return_val_if_fail (src != NULL, 0);
1464 /* Find the end of dst and adjust bytes left but don't go past end */
1465 while (*d != 0 && bytes_left-- != 0)
1468 bytes_left = dest_size - dlength;
1470 if (bytes_left == 0)
1471 return dlength + strlen (s);
1475 if (bytes_left != 1)
1484 return dlength + (s - src); /* count does not include NUL */
1486 #endif /* ! HAVE_STRLCPY */
1491 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1493 * Converts all upper case ASCII letters to lower case ASCII letters.
1495 * Return value: a newly-allocated string, with all the upper case
1496 * characters in @str converted to lower case, with
1497 * semantics that exactly match g_ascii_tolower(). (Note
1498 * that this is unlike the old g_strdown(), which modified
1499 * the string in place.)
1502 g_ascii_strdown (const gchar *str,
1507 g_return_val_if_fail (str != NULL, NULL);
1512 result = g_strndup (str, len);
1513 for (s = result; *s; s++)
1514 *s = g_ascii_tolower (*s);
1522 * @len: length of @str in bytes, or -1 if @str is nul-terminated.
1524 * Converts all lower case ASCII letters to upper case ASCII letters.
1526 * Return value: a newly allocated string, with all the lower case
1527 * characters in @str converted to upper case, with
1528 * semantics that exactly match g_ascii_toupper(). (Note
1529 * that this is unlike the old g_strup(), which modified
1530 * the string in place.)
1533 g_ascii_strup (const gchar *str,
1538 g_return_val_if_fail (str != NULL, NULL);
1543 result = g_strndup (str, len);
1544 for (s = result; *s; s++)
1545 *s = g_ascii_toupper (*s);
1552 * @string: the string to convert.
1554 * Converts a string to lower case.
1556 * Return value: the string
1558 * Deprecated: This function is totally broken for the reasons discussed in
1559 * the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
1563 g_strdown (gchar *string)
1567 g_return_val_if_fail (string != NULL, NULL);
1569 s = (guchar *) string;
1578 return (gchar *) string;
1583 * @string: the string to convert.
1585 * Converts a string to upper case.
1587 * Return value: the string
1589 * Deprecated: This function is totally broken for the reasons discussed in
1590 * the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
1593 g_strup (gchar *string)
1597 g_return_val_if_fail (string != NULL, NULL);
1599 s = (guchar *) string;
1608 return (gchar *) string;
1612 g_strreverse (gchar *string)
1614 g_return_val_if_fail (string != NULL, NULL);
1618 register gchar *h, *t;
1621 t = string + strlen (string) - 1;
1640 * @c: any character.
1642 * Convert a character to ASCII lower case.
1644 * Unlike the standard C library tolower() function, this only
1645 * recognizes standard ASCII letters and ignores the locale, returning
1646 * all non-ASCII characters unchanged, even if they are lower case
1647 * letters in a particular character set. Also unlike the standard
1648 * library function, this takes and returns a char, not an int, so
1649 * don't call it on %EOF but no need to worry about casting to #guchar
1650 * before passing a possibly non-ASCII character in.
1652 * Return value: the result of converting @c to lower case.
1653 * If @c is not an ASCII upper case letter,
1654 * @c is returned unchanged.
1657 g_ascii_tolower (gchar c)
1659 return g_ascii_isupper (c) ? c - 'A' + 'a' : c;
1664 * @c: any character.
1666 * Convert a character to ASCII upper case.
1668 * Unlike the standard C library toupper() function, this only
1669 * recognizes standard ASCII letters and ignores the locale, returning
1670 * all non-ASCII characters unchanged, even if they are upper case
1671 * letters in a particular character set. Also unlike the standard
1672 * library function, this takes and returns a char, not an int, so
1673 * don't call it on %EOF but no need to worry about casting to #guchar
1674 * before passing a possibly non-ASCII character in.
1676 * Return value: the result of converting @c to upper case.
1677 * If @c is not an ASCII lower case letter,
1678 * @c is returned unchanged.
1681 g_ascii_toupper (gchar c)
1683 return g_ascii_islower (c) ? c - 'a' + 'A' : c;
1687 * g_ascii_digit_value:
1688 * @c: an ASCII character.
1690 * Determines the numeric value of a character as a decimal
1691 * digit. Differs from g_unichar_digit_value() because it takes
1692 * a char, so there's no worry about sign extension if characters
1695 * Return value: If @c is a decimal digit (according to
1696 * g_ascii_isdigit()), its numeric value. Otherwise, -1.
1699 g_ascii_digit_value (gchar c)
1701 if (g_ascii_isdigit (c))
1707 * g_ascii_xdigit_value:
1708 * @c: an ASCII character.
1710 * Determines the numeric value of a character as a hexidecimal
1711 * digit. Differs from g_unichar_xdigit_value() because it takes
1712 * a char, so there's no worry about sign extension if characters
1715 * Return value: If @c is a hex digit (according to
1716 * g_ascii_isxdigit()), its numeric value. Otherwise, -1.
1719 g_ascii_xdigit_value (gchar c)
1721 if (c >= 'A' && c <= 'F')
1722 return c - 'A' + 10;
1723 if (c >= 'a' && c <= 'f')
1724 return c - 'a' + 10;
1725 return g_ascii_digit_value (c);
1729 * g_ascii_strcasecmp:
1730 * @s1: string to compare with @s2.
1731 * @s2: string to compare with @s1.
1733 * Compare two strings, ignoring the case of ASCII characters.
1735 * Unlike the BSD strcasecmp() function, this only recognizes standard
1736 * ASCII letters and ignores the locale, treating all non-ASCII
1737 * characters as if they are not letters.
1739 * Return value: an integer less than, equal to, or greater than
1740 * zero if @s1 is found, respectively, to be less than,
1741 * to match, or to be greater than @s2.
1744 g_ascii_strcasecmp (const gchar *s1,
1749 g_return_val_if_fail (s1 != NULL, 0);
1750 g_return_val_if_fail (s2 != NULL, 0);
1754 c1 = (gint)(guchar) TOLOWER (*s1);
1755 c2 = (gint)(guchar) TOLOWER (*s2);
1761 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1765 * g_ascii_strncasecmp:
1766 * @s1: string to compare with @s2.
1767 * @s2: string to compare with @s1.
1768 * @n: number of characters to compare.
1770 * Compare @s1 and @s2, ignoring the case of ASCII characters and any
1771 * characters after the first @n in each string.
1773 * Unlike the BSD strcasecmp() function, this only recognizes standard
1774 * ASCII letters and ignores the locale, treating all non-ASCII
1775 * characters as if they are not letters.
1777 * Return value: an integer less than, equal to, or greater than zero
1778 * if the first @n bytes of @s1 is found, respectively,
1779 * to be less than, to match, or to be greater than the
1780 * first @n bytes of @s2.
1783 g_ascii_strncasecmp (const gchar *s1,
1789 g_return_val_if_fail (s1 != NULL, 0);
1790 g_return_val_if_fail (s2 != NULL, 0);
1792 while (n && *s1 && *s2)
1795 c1 = (gint)(guchar) TOLOWER (*s1);
1796 c2 = (gint)(guchar) TOLOWER (*s2);
1803 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
1811 * @s2: a string to compare with @s1.
1813 * A case-insensitive string comparison, corresponding to the standard
1814 * strcasecmp() function on platforms which support it.
1816 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1817 * or a positive value if @s1 > @s2.
1819 * Deprecated: See g_strncasecmp() for a discussion of why this function is
1820 * deprecated and how to replace it.
1823 g_strcasecmp (const gchar *s1,
1826 #ifdef HAVE_STRCASECMP
1827 g_return_val_if_fail (s1 != NULL, 0);
1828 g_return_val_if_fail (s2 != NULL, 0);
1830 return strcasecmp (s1, s2);
1834 g_return_val_if_fail (s1 != NULL, 0);
1835 g_return_val_if_fail (s2 != NULL, 0);
1839 /* According to A. Cox, some platforms have islower's that
1840 * don't work right on non-uppercase
1842 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1843 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1849 return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
1856 * @s2: a string to compare with @s1.
1857 * @n: the maximum number of characters to compare.
1859 * A case-insensitive string comparison, corresponding to the standard
1860 * strncasecmp() function on platforms which support it.
1861 * It is similar to g_strcasecmp() except it only compares the first @n
1862 * characters of the strings.
1864 * Return value: 0 if the strings match, a negative value if @s1 < @s2,
1865 * or a positive value if @s1 > @s2.
1867 * Deprecated: The problem with g_strncasecmp() is that it does the
1868 * comparison by calling toupper()/tolower(). These functions are
1869 * locale-specific and operate on single bytes. However, it is impossible
1870 * to handle things correctly from an I18N standpoint by operating on
1871 * bytes, since characters may be multibyte. Thus g_strncasecmp() is
1872 * broken if your string is guaranteed to be ASCII, since it's
1873 * locale-sensitive, and it's broken if your string is localized, since
1874 * it doesn't work on many encodings at all, including UTF-8, EUC-JP,
1877 * There are therefore two replacement functions: g_ascii_strncasecmp(),
1878 * which only works on ASCII and is not locale-sensitive, and
1879 * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8.
1882 g_strncasecmp (const gchar *s1,
1886 #ifdef HAVE_STRNCASECMP
1887 return strncasecmp (s1, s2, n);
1891 g_return_val_if_fail (s1 != NULL, 0);
1892 g_return_val_if_fail (s2 != NULL, 0);
1894 while (n && *s1 && *s2)
1897 /* According to A. Cox, some platforms have islower's that
1898 * don't work right on non-uppercase
1900 c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
1901 c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
1908 return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
1915 g_strdelimit (gchar *string,
1916 const gchar *delimiters,
1921 g_return_val_if_fail (string != NULL, NULL);
1924 delimiters = G_STR_DELIMITERS;
1926 for (c = string; *c; c++)
1928 if (strchr (delimiters, *c))
1936 g_strcanon (gchar *string,
1937 const gchar *valid_chars,
1942 g_return_val_if_fail (string != NULL, NULL);
1943 g_return_val_if_fail (valid_chars != NULL, NULL);
1945 for (c = string; *c; c++)
1947 if (!strchr (valid_chars, *c))
1955 g_strcompress (const gchar *source)
1957 const gchar *p = source, *octal;
1958 gchar *dest = g_malloc (strlen (source) + 1);
1968 case '0': case '1': case '2': case '3': case '4':
1969 case '5': case '6': case '7':
1972 while ((p < octal + 3) && (*p >= '0') && (*p <= '7'))
1974 *q = (*q * 8) + (*p - '0');
1995 default: /* Also handles \" and \\ */
2010 g_strescape (const gchar *source,
2011 const gchar *exceptions)
2018 g_return_val_if_fail (source != NULL, NULL);
2020 p = (guchar *) source;
2021 /* Each source byte needs maximally four destination chars (\777) */
2022 q = dest = g_malloc (strlen (source) * 4 + 1);
2024 memset (excmap, 0, 256);
2027 guchar *e = (guchar *) exceptions;
2073 if ((*p < ' ') || (*p >= 0177))
2076 *q++ = '0' + (((*p) >> 6) & 07);
2077 *q++ = '0' + (((*p) >> 3) & 07);
2078 *q++ = '0' + ((*p) & 07);
2092 g_strchug (gchar *string)
2096 g_return_val_if_fail (string != NULL, NULL);
2098 for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
2101 g_memmove (string, start, strlen ((gchar *) start) + 1);
2107 g_strchomp (gchar *string)
2111 g_return_val_if_fail (string != NULL, NULL);
2113 len = strlen (string);
2116 if (g_ascii_isspace ((guchar) string[len]))
2127 * @string: a string to split.
2128 * @delimiter: a string which specifies the places at which to split the string.
2129 * The delimiter is not included in any of the resulting strings, unless
2130 * @max_tokens is reached.
2131 * @max_tokens: the maximum number of pieces to split @string into. If this is
2132 * less than 1, the string is split completely.
2134 * Splits a string into a maximum of @max_tokens pieces, using the given
2135 * @delimiter. If @max_tokens is reached, the remainder of @string is appended
2136 * to the last token.
2138 * As a special case, the result of splitting the empty string "" is an empty
2139 * vector, not a vector containing a single string. The reason for this
2140 * special case is that being able to represent a empty vector is typically
2141 * more useful than consistent handling of empty elements. If you do need
2142 * to represent empty elements, you'll need to check for the empty string
2143 * before calling g_strsplit().
2145 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2146 * g_strfreev() to free it.
2149 g_strsplit (const gchar *string,
2150 const gchar *delimiter,
2153 GSList *string_list = NULL, *slist;
2154 gchar **str_array, *s;
2156 const gchar *remainder;
2158 g_return_val_if_fail (string != NULL, NULL);
2159 g_return_val_if_fail (delimiter != NULL, NULL);
2160 g_return_val_if_fail (delimiter[0] != '\0', NULL);
2163 max_tokens = G_MAXINT;
2166 s = strstr (remainder, delimiter);
2169 gsize delimiter_len = strlen (delimiter);
2171 while (--max_tokens && s)
2176 len = s - remainder;
2177 new_string = g_new (gchar, len + 1);
2178 strncpy (new_string, remainder, len);
2179 new_string[len] = 0;
2180 string_list = g_slist_prepend (string_list, new_string);
2182 remainder = s + delimiter_len;
2183 s = strstr (remainder, delimiter);
2189 string_list = g_slist_prepend (string_list, g_strdup (remainder));
2192 str_array = g_new (gchar*, n + 1);
2194 str_array[n--] = NULL;
2195 for (slist = string_list; slist; slist = slist->next)
2196 str_array[n--] = slist->data;
2198 g_slist_free (string_list);
2205 * @string: The string to be tokenized
2206 * @delimiters: A nul-terminated string containing bytes that are used
2207 * to split the string.
2208 * @max_tokens: The maximum number of tokens to split @string into.
2209 * If this is less than 1, the string is split completely
2211 * Splits @string into a number of tokens not containing any of the characters
2212 * in @delimiter. A token is the (possibly empty) longest string that does not
2213 * contain any of the characters in @delimiters. If @max_tokens is reached, the
2214 * remainder is appended to the last token.
2216 * For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a
2217 * %NULL-terminated vector containing the three strings "abc", "def",
2220 * The result if g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated
2221 * vector containing the four strings "", "def", "ghi", and "".
2223 * As a special case, the result of splitting the empty string "" is an empty
2224 * vector, not a vector containing a single string. The reason for this
2225 * special case is that being able to represent a empty vector is typically
2226 * more useful than consistent handling of empty elements. If you do need
2227 * to represent empty elements, you'll need to check for the empty string
2228 * before calling g_strsplit_set().
2230 * Note that this function works on bytes not characters, so it can't be used
2231 * to delimit UTF-8 strings for anything but ASCII characters.
2233 * Return value: a newly-allocated %NULL-terminated array of strings. Use
2234 * g_strfreev() to free it.
2239 g_strsplit_set (const gchar *string,
2240 const gchar *delimiters,
2243 gboolean delim_table[256];
2244 GSList *tokens, *list;
2247 const gchar *current;
2251 g_return_val_if_fail (string != NULL, NULL);
2252 g_return_val_if_fail (delimiters != NULL, NULL);
2255 max_tokens = G_MAXINT;
2257 if (*string == '\0')
2259 result = g_new (char *, 1);
2264 memset (delim_table, FALSE, sizeof (delim_table));
2265 for (s = delimiters; *s != '\0'; ++s)
2266 delim_table[*(guchar *)s] = TRUE;
2271 s = current = string;
2274 if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens)
2278 token = g_strndup (current, s - current);
2279 tokens = g_slist_prepend (tokens, token);
2288 token = g_strndup (current, s - current);
2289 tokens = g_slist_prepend (tokens, token);
2292 result = g_new (gchar *, n_tokens + 1);
2294 result[n_tokens] = NULL;
2295 for (list = tokens; list != NULL; list = list->next)
2296 result[--n_tokens] = list->data;
2298 g_slist_free (tokens);
2305 * @str_array: a %NULL-terminated array of strings to free.
2307 * Frees a %NULL-terminated array of strings, and the array itself.
2308 * If called on a %NULL value, g_strfreev() simply returns.
2311 g_strfreev (gchar **str_array)
2317 for(i = 0; str_array[i] != NULL; i++)
2318 g_free(str_array[i]);
2326 * @str_array: %NULL-terminated array of strings.
2328 * Copies %NULL-terminated array of strings. The copy is a deep copy;
2329 * the new array should be freed by first freeing each string, then
2330 * the array itself. g_strfreev() does this for you. If called
2331 * on a %NULL value, g_strdupv() simply returns %NULL.
2333 * Return value: a new %NULL-terminated array of strings.
2336 g_strdupv (gchar **str_array)
2344 while (str_array[i])
2347 retval = g_new (gchar*, i + 1);
2350 while (str_array[i])
2352 retval[i] = g_strdup (str_array[i]);
2364 g_strjoinv (const gchar *separator,
2370 g_return_val_if_fail (str_array != NULL, NULL);
2372 if (separator == NULL)
2379 gsize separator_len;
2381 separator_len = strlen (separator);
2382 /* First part, getting length */
2383 len = 1 + strlen (str_array[0]);
2384 for (i = 1; str_array[i] != NULL; i++)
2385 len += strlen (str_array[i]);
2386 len += separator_len * (i - 1);
2388 /* Second part, building string */
2389 string = g_new (gchar, len);
2390 ptr = g_stpcpy (string, *str_array);
2391 for (i = 1; str_array[i] != NULL; i++)
2393 ptr = g_stpcpy (ptr, separator);
2394 ptr = g_stpcpy (ptr, str_array[i]);
2398 string = g_strdup ("");
2404 g_strjoin (const gchar *separator,
2410 gsize separator_len;
2413 if (separator == NULL)
2416 separator_len = strlen (separator);
2418 va_start (args, separator);
2420 s = va_arg (args, gchar*);
2424 /* First part, getting length */
2425 len = 1 + strlen (s);
2427 s = va_arg (args, gchar*);
2430 len += separator_len + strlen (s);
2431 s = va_arg (args, gchar*);
2435 /* Second part, building string */
2436 string = g_new (gchar, len);
2438 va_start (args, separator);
2440 s = va_arg (args, gchar*);
2441 ptr = g_stpcpy (string, s);
2443 s = va_arg (args, gchar*);
2446 ptr = g_stpcpy (ptr, separator);
2447 ptr = g_stpcpy (ptr, s);
2448 s = va_arg (args, gchar*);
2452 string = g_strdup ("");
2462 * @haystack: a string.
2463 * @haystack_len: the maximum length of @haystack.
2464 * @needle: the string to search for.
2466 * Searches the string @haystack for the first occurrence
2467 * of the string @needle, limiting the length of the search
2470 * Return value: a pointer to the found occurrence, or
2471 * %NULL if not found.
2474 g_strstr_len (const gchar *haystack,
2475 gssize haystack_len,
2476 const gchar *needle)
2478 g_return_val_if_fail (haystack != NULL, NULL);
2479 g_return_val_if_fail (needle != NULL, NULL);
2481 if (haystack_len < 0)
2482 return strstr (haystack, needle);
2485 const gchar *p = haystack;
2486 gsize needle_len = strlen (needle);
2490 if (needle_len == 0)
2491 return (gchar *)haystack;
2493 if (haystack_len < needle_len)
2496 end = haystack + haystack_len - needle_len;
2498 while (*p && p <= end)
2500 for (i = 0; i < needle_len; i++)
2501 if (p[i] != needle[i])
2516 * @haystack: a nul-terminated string.
2517 * @needle: the nul-terminated string to search for.
2519 * Searches the string @haystack for the last occurrence
2520 * of the string @needle.
2522 * Return value: a pointer to the found occurrence, or
2523 * %NULL if not found.
2526 g_strrstr (const gchar *haystack,
2527 const gchar *needle)
2534 g_return_val_if_fail (haystack != NULL, NULL);
2535 g_return_val_if_fail (needle != NULL, NULL);
2537 needle_len = strlen (needle);
2538 haystack_len = strlen (haystack);
2540 if (needle_len == 0)
2541 return (gchar *)haystack;
2543 if (haystack_len < needle_len)
2546 p = haystack + haystack_len - needle_len;
2548 while (p >= haystack)
2550 for (i = 0; i < needle_len; i++)
2551 if (p[i] != needle[i])
2565 * @haystack: a nul-terminated string.
2566 * @haystack_len: the maximum length of @haystack.
2567 * @needle: the nul-terminated string to search for.
2569 * Searches the string @haystack for the last occurrence
2570 * of the string @needle, limiting the length of the search
2573 * Return value: a pointer to the found occurrence, or
2574 * %NULL if not found.
2577 g_strrstr_len (const gchar *haystack,
2578 gssize haystack_len,
2579 const gchar *needle)
2581 g_return_val_if_fail (haystack != NULL, NULL);
2582 g_return_val_if_fail (needle != NULL, NULL);
2584 if (haystack_len < 0)
2585 return g_strrstr (haystack, needle);
2588 gsize needle_len = strlen (needle);
2589 const gchar *haystack_max = haystack + haystack_len;
2590 const gchar *p = haystack;
2593 while (p < haystack_max && *p)
2596 if (p < haystack + needle_len)
2601 while (p >= haystack)
2603 for (i = 0; i < needle_len; i++)
2604 if (p[i] != needle[i])
2620 * @str: a nul-terminated string.
2621 * @suffix: the nul-terminated suffix to look for.
2623 * Looks whether the string @str ends with @suffix.
2625 * Return value: %TRUE if @str end with @suffix, %FALSE otherwise.
2630 g_str_has_suffix (const gchar *str,
2631 const gchar *suffix)
2636 g_return_val_if_fail (str != NULL, FALSE);
2637 g_return_val_if_fail (suffix != NULL, FALSE);
2639 str_len = strlen (str);
2640 suffix_len = strlen (suffix);
2642 if (str_len < suffix_len)
2645 return strcmp (str + str_len - suffix_len, suffix) == 0;
2650 * @str: a nul-terminated string.
2651 * @prefix: the nul-terminated prefix to look for.
2653 * Looks whether the string @str begins with @prefix.
2655 * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise.
2660 g_str_has_prefix (const gchar *str,
2661 const gchar *prefix)
2666 g_return_val_if_fail (str != NULL, FALSE);
2667 g_return_val_if_fail (prefix != NULL, FALSE);
2669 str_len = strlen (str);
2670 prefix_len = strlen (prefix);
2672 if (str_len < prefix_len)
2675 return strncmp (str, prefix, prefix_len) == 0;
2682 * @msgval: another string
2684 * An auxiliary function for gettext() support (see Q_()).
2686 * Return value: @msgval, unless @msgval is identical to @msgid and contains
2687 * a '|' character, in which case a pointer to the substring of msgid after
2688 * the first '|' character is returned.
2692 G_CONST_RETURN gchar *
2693 g_strip_context (const gchar *msgid,
2694 const gchar *msgval)
2696 if (msgval == msgid)
2698 const char *c = strchr (msgid, '|');
2709 * @str_array: a %NULL-terminated array of strings.
2711 * Returns the length of the given %NULL-terminated
2712 * string array @str_array.
2714 * Return value: length of @str_array.
2719 g_strv_length (gchar **str_array)
2723 g_return_val_if_fail (str_array != NULL, 0);
2725 while (str_array[i])