* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
+ * You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
+ * Modified by the GLib Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GLib Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GLib at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+/*
* MT safe
*/
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
+#include "config.h"
+
+#define _GNU_SOURCE /* For stpcpy */
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <locale.h>
+#include <errno.h>
#include <ctype.h> /* For tolower() */
+#if !defined (HAVE_STRSIGNAL) || !defined(NO_SYS_SIGLIST_DECL)
#include <signal.h>
+#endif
+
#include "glib.h"
+#include "gprintf.h"
+#include "gprintfint.h"
+
+#ifdef G_OS_WIN32
+#include <windows.h>
+#endif
+
/* do not include <unistd.h> in this place since it
- * inteferes with g_strsignal() on some OSes
+ * interferes with g_strsignal() on some OSes
*/
+static const guint16 ascii_table_data[256] = {
+ 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
+ 0x004, 0x104, 0x104, 0x004, 0x104, 0x104, 0x004, 0x004,
+ 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
+ 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
+ 0x140, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
+ 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
+ 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459,
+ 0x459, 0x459, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
+ 0x0d0, 0x653, 0x653, 0x653, 0x653, 0x653, 0x653, 0x253,
+ 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
+ 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
+ 0x253, 0x253, 0x253, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
+ 0x0d0, 0x473, 0x473, 0x473, 0x473, 0x473, 0x473, 0x073,
+ 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
+ 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
+ 0x073, 0x073, 0x073, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x004
+ /* the upper 128 are all zeroes */
+};
+
+#if defined(G_PLATFORM_WIN32) && defined(__GNUC__)
+__declspec(dllexport)
+#endif
+const guint16 * const g_ascii_table = ascii_table_data;
+
gchar*
g_strdup (const gchar *str)
{
gchar *new_str;
+ gsize length;
if (str)
{
- new_str = g_new (char, strlen (str) + 1);
- strcpy (new_str, str);
+ length = strlen (str) + 1;
+ new_str = g_new (char, length);
+ memcpy (new_str, str, length);
}
else
new_str = NULL;
gchar*
g_strndup (const gchar *str,
- guint n)
+ gsize n)
{
gchar *new_str;
}
gchar*
-g_strnfill (guint length,
+g_strnfill (gsize length,
gchar fill_char)
{
- register gchar *str, *s, *end;
+ gchar *str;
str = g_new (gchar, length + 1);
- s = str;
- end = str + length;
- while (s < end)
- *(s++) = fill_char;
- *s = 0;
+ memset (str, (guchar)fill_char, length);
+ str[length] = '\0';
return str;
}
-gchar*
-g_strdup_vprintf (const gchar *format,
- va_list args1)
+/**
+ * g_stpcpy:
+ * @dest: destination buffer.
+ * @src: source string.
+ *
+ * Copies a nul-terminated string into the dest buffer, include the
+ * trailing nul, and return a pointer to the trailing nul byte.
+ * This is useful for concatenating multiple strings together
+ * without having to repeatedly scan for the end.
+ *
+ * Return value: a pointer to trailing nul byte.
+ **/
+gchar *
+g_stpcpy (gchar *dest,
+ const gchar *src)
{
- gchar *buffer;
- va_list args2;
+#ifdef HAVE_STPCPY
+ g_return_val_if_fail (dest != NULL, NULL);
+ g_return_val_if_fail (src != NULL, NULL);
+ return stpcpy (dest, src);
+#else
+ register gchar *d = dest;
+ register const gchar *s = src;
+
+ g_return_val_if_fail (dest != NULL, NULL);
+ g_return_val_if_fail (src != NULL, NULL);
+ do
+ *d++ = *s;
+ while (*s++ != '\0');
- G_VA_COPY (args2, args1);
+ return d - 1;
+#endif
+}
- buffer = g_new (gchar, g_printf_string_upper_bound (format, args1));
+gchar*
+g_strdup_vprintf (const gchar *format,
+ va_list args)
+{
+ gchar *string = NULL;
- vsprintf (buffer, format, args2);
- va_end (args2);
+ g_vasprintf (&string, format, args);
- return buffer;
+ return string;
}
gchar*
gchar*
g_strconcat (const gchar *string1, ...)
{
- guint l;
+ gsize l;
va_list args;
gchar *s;
gchar *concat;
+ gchar *ptr;
- g_return_val_if_fail (string1 != NULL, NULL);
+ if (!string1)
+ return NULL;
l = 1 + strlen (string1);
va_start (args, string1);
va_end (args);
concat = g_new (gchar, l);
- concat[0] = 0;
+ ptr = concat;
- strcat (concat, string1);
+ ptr = g_stpcpy (ptr, string1);
va_start (args, string1);
s = va_arg (args, gchar*);
while (s)
{
- strcat (concat, s);
+ ptr = g_stpcpy (ptr, s);
s = va_arg (args, gchar*);
}
va_end (args);
return concat;
}
+/**
+ * g_strtod:
+ * @nptr: the string to convert to a numeric value.
+ * @endptr: if non-%NULL, it returns the character after
+ * the last character used in the conversion.
+ *
+ * Converts a string to a #gdouble value.
+ * It calls the standard strtod() function to handle the conversion, but
+ * if the string is not completely converted it attempts the conversion
+ * again with g_ascii_strtod(), and returns the best match.
+ *
+ * This function should seldomly be used. The normal situation when reading
+ * numbers not for human consumption is to use g_ascii_strtod(). Only when
+ * you know that you must expect both locale formatted and C formatted numbers
+ * should you use this. Make sure that you don't pass strings such as comma
+ * separated lists of values, since the commas may be interpreted as a decimal
+ * point in some locales, causing unexpected results.
+ *
+ * Return value: the #gdouble value.
+ **/
gdouble
g_strtod (const gchar *nptr,
- gchar **endptr)
+ gchar **endptr)
{
gchar *fail_pos_1;
gchar *fail_pos_2;
val_1 = strtod (nptr, &fail_pos_1);
if (fail_pos_1 && fail_pos_1[0] != 0)
- {
- gchar *old_locale;
-
- old_locale = setlocale (LC_NUMERIC, "C");
- val_2 = strtod (nptr, &fail_pos_2);
- setlocale (LC_NUMERIC, old_locale);
- }
+ val_2 = g_ascii_strtod (nptr, &fail_pos_2);
if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
{
}
}
-gchar*
+/**
+ * g_ascii_strtod:
+ * @nptr: the string to convert to a numeric value.
+ * @endptr: if non-%NULL, it returns the character after
+ * the last character used in the conversion.
+ *
+ * Converts a string to a #gdouble value.
+ * This function behaves like the standard strtod() function
+ * does in the C locale. It does this without actually
+ * changing the current locale, since that would not be
+ * thread-safe.
+ *
+ * This function is typically used when reading configuration
+ * files or other non-user input that should be locale independent.
+ * To handle input from the user you should normally use the
+ * locale-sensitive system strtod() function.
+ *
+ * To convert from a #gdouble to a string in a locale-insensitive
+ * way, use g_ascii_dtostr().
+ *
+ * If the correct value would cause overflow, plus or minus %HUGE_VAL
+ * is returned (according to the sign of the value), and %ERANGE is
+ * stored in %errno. If the correct value would cause underflow,
+ * zero is returned and %ERANGE is stored in %errno.
+ *
+ * This function resets %errno before calling strtod() so that
+ * you can reliably detect overflow and underflow.
+ *
+ * Return value: the #gdouble value.
+ **/
+gdouble
+g_ascii_strtod (const gchar *nptr,
+ gchar **endptr)
+{
+ gchar *fail_pos;
+ gdouble val;
+ struct lconv *locale_data;
+ const char *decimal_point;
+ int decimal_point_len;
+ const char *p, *decimal_point_pos;
+ const char *end = NULL; /* Silence gcc */
+
+ g_return_val_if_fail (nptr != NULL, 0);
+
+ fail_pos = NULL;
+
+ locale_data = localeconv ();
+ decimal_point = locale_data->decimal_point;
+ decimal_point_len = strlen (decimal_point);
+
+ g_assert (decimal_point_len != 0);
+
+ decimal_point_pos = NULL;
+ if (decimal_point[0] != '.' ||
+ decimal_point[1] != 0)
+ {
+ p = nptr;
+ /* Skip leading space */
+ while (g_ascii_isspace (*p))
+ p++;
+
+ /* Skip leading optional sign */
+ if (*p == '+' || *p == '-')
+ p++;
+
+ if (p[0] == '0' &&
+ (p[1] == 'x' || p[1] == 'X'))
+ {
+ p += 2;
+ /* HEX - find the (optional) decimal point */
+
+ while (g_ascii_isxdigit (*p))
+ p++;
+
+ if (*p == '.')
+ {
+ decimal_point_pos = p++;
+
+ while (g_ascii_isxdigit (*p))
+ p++;
+
+ if (*p == 'p' || *p == 'P')
+ p++;
+ if (*p == '+' || *p == '-')
+ p++;
+ while (g_ascii_isdigit (*p))
+ p++;
+ end = p;
+ }
+ }
+ else
+ {
+ while (g_ascii_isdigit (*p))
+ p++;
+
+ if (*p == '.')
+ {
+ decimal_point_pos = p++;
+
+ while (g_ascii_isdigit (*p))
+ p++;
+
+ if (*p == 'e' || *p == 'E')
+ p++;
+ if (*p == '+' || *p == '-')
+ p++;
+ while (g_ascii_isdigit (*p))
+ p++;
+ end = p;
+ }
+ }
+ /* For the other cases, we need not convert the decimal point */
+ }
+
+ /* Set errno to zero, so that we can distinguish zero results
+ and underflows */
+ errno = 0;
+
+ if (decimal_point_pos)
+ {
+ char *copy, *c;
+
+ /* We need to convert the '.' to the locale specific decimal point */
+ copy = g_malloc (end - nptr + 1 + decimal_point_len);
+
+ c = copy;
+ memcpy (c, nptr, decimal_point_pos - nptr);
+ c += decimal_point_pos - nptr;
+ memcpy (c, decimal_point, decimal_point_len);
+ c += decimal_point_len;
+ memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
+ c += end - (decimal_point_pos + 1);
+ *c = 0;
+
+ val = strtod (copy, &fail_pos);
+
+ if (fail_pos)
+ {
+ if (fail_pos - copy > decimal_point_pos - nptr)
+ fail_pos = (char *)nptr + (fail_pos - copy) - (decimal_point_len - 1);
+ else
+ fail_pos = (char *)nptr + (fail_pos - copy);
+ }
+
+ g_free (copy);
+
+ }
+ else
+ val = strtod (nptr, &fail_pos);
+
+ if (endptr)
+ *endptr = fail_pos;
+
+ return val;
+}
+
+
+/**
+ * g_ascii_dtostr:
+ * @buffer: A buffer to place the resulting string in
+ * @buf_len: The length of the buffer.
+ * @d: The #gdouble to convert
+ *
+ * Converts a #gdouble to a string, using the '.' as
+ * decimal point.
+ *
+ * This functions generates enough precision that converting
+ * the string back using g_ascii_strtod() gives the same machine-number
+ * (on machines with IEEE compatible 64bit doubles). It is
+ * guaranteed that the size of the resulting string will never
+ * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes.
+ *
+ * Return value: The pointer to the buffer with the converted string.
+ **/
+gchar *
+g_ascii_dtostr (gchar *buffer,
+ gint buf_len,
+ gdouble d)
+{
+ return g_ascii_formatd (buffer, buf_len, "%.17g", d);
+}
+
+/**
+ * g_ascii_formatd:
+ * @buffer: A buffer to place the resulting string in
+ * @buf_len: The length of the buffer.
+ * @format: The printf()-style format to use for the
+ * code to use for converting.
+ * @d: The #gdouble to convert
+ *
+ * Converts a #gdouble to a string, using the '.' as
+ * decimal point. To format the number you pass in
+ * a printf()-style format string. Allowed conversion
+ * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
+ *
+ * If you just want to want to serialize the value into a
+ * string, use g_ascii_dtostr().
+ *
+ * Return value: The pointer to the buffer with the converted string.
+ **/
+gchar *
+g_ascii_formatd (gchar *buffer,
+ gint buf_len,
+ const gchar *format,
+ gdouble d)
+{
+ struct lconv *locale_data;
+ const char *decimal_point;
+ int decimal_point_len;
+ gchar *p;
+ int rest_len;
+ gchar format_char;
+
+ g_return_val_if_fail (buffer != NULL, NULL);
+ g_return_val_if_fail (format[0] == '%', NULL);
+ g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL);
+
+ format_char = format[strlen (format) - 1];
+
+ g_return_val_if_fail (format_char == 'e' || format_char == 'E' ||
+ format_char == 'f' || format_char == 'F' ||
+ format_char == 'g' || format_char == 'G',
+ NULL);
+
+ if (format[0] != '%')
+ return NULL;
+
+ if (strpbrk (format + 1, "'l%"))
+ return NULL;
+
+ if (!(format_char == 'e' || format_char == 'E' ||
+ format_char == 'f' || format_char == 'F' ||
+ format_char == 'g' || format_char == 'G'))
+ return NULL;
+
+
+ _g_snprintf (buffer, buf_len, format, d);
+
+ locale_data = localeconv ();
+ decimal_point = locale_data->decimal_point;
+ decimal_point_len = strlen (decimal_point);
+
+ g_assert (decimal_point_len != 0);
+
+ if (decimal_point[0] != '.' ||
+ decimal_point[1] != 0)
+ {
+ p = buffer;
+
+ if (*p == '+' || *p == '-')
+ p++;
+
+ while (isdigit ((guchar)*p))
+ p++;
+
+ if (strncmp (p, decimal_point, decimal_point_len) == 0)
+ {
+ *p = '.';
+ p++;
+ if (decimal_point_len > 1) {
+ rest_len = strlen (p + (decimal_point_len-1));
+ memmove (p, p + (decimal_point_len-1),
+ rest_len);
+ p[rest_len] = 0;
+
+ }
+ }
+ }
+
+ return buffer;
+}
+
+/**
+ * g_ascii_strtoull:
+ * @nptr: the string to convert to a numeric value.
+ * @endptr: if non-%NULL, it returns the character after
+ * the last character used in the conversion.
+ * @base: to be used for the conversion, 2..36 or 0
+ *
+ * Converts a string to a #guint64 value.
+ * This function behaves like the standard strtoull() function
+ * does in the C locale. It does this without actually
+ * changing the current locale, since that would not be
+ * thread-safe.
+ *
+ * This function is typically used when reading configuration
+ * files or other non-user input that should be locale independent.
+ * To handle input from the user you should normally use the
+ * locale-sensitive system strtoull() function.
+ *
+ * If the correct value would cause overflow, %G_MAXUINT64
+ * is returned, and %ERANGE is stored in %errno.
+ *
+ * Return value: the #guint64 value.
+ *
+ * Since: 2.2
+ **/
+guint64
+g_ascii_strtoull (const gchar *nptr,
+ gchar **endptr,
+ guint base)
+{
+ /* this code is based on on the strtol(3) code from GNU libc released under
+ * the GNU Lesser General Public License.
+ *
+ * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
+ * Free Software Foundation, Inc.
+ */
+#define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
+ (c) == '\r' || (c) == '\t' || (c) == '\v')
+#define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z')
+#define ISLOWER(c) ((c) >= 'a' && (c) <= 'z')
+#define ISALPHA(c) (ISUPPER (c) || ISLOWER (c))
+#define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c))
+#define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c))
+ gboolean negative, overflow;
+ guint64 cutoff;
+ guint64 cutlim;
+ guint64 ui64;
+ const gchar *s, *save;
+ guchar c;
+
+ g_return_val_if_fail (nptr != NULL, 0);
+
+ if (base == 1 || base > 36)
+ {
+ errno = EINVAL;
+ return 0;
+ }
+
+ save = s = nptr;
+
+ /* Skip white space. */
+ while (ISSPACE (*s))
+ ++s;
+ if (!*s)
+ goto noconv;
+
+ /* Check for a sign. */
+ negative = FALSE;
+ if (*s == '-')
+ {
+ negative = TRUE;
+ ++s;
+ }
+ else if (*s == '+')
+ ++s;
+
+ /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
+ if (*s == '0')
+ {
+ if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X')
+ {
+ s += 2;
+ base = 16;
+ }
+ else if (base == 0)
+ base = 8;
+ }
+ else if (base == 0)
+ base = 10;
+
+ /* Save the pointer so we can check later if anything happened. */
+ save = s;
+ cutoff = G_MAXUINT64 / base;
+ cutlim = G_MAXUINT64 % base;
+
+ overflow = FALSE;
+ ui64 = 0;
+ c = *s;
+ for (; c; c = *++s)
+ {
+ if (c >= '0' && c <= '9')
+ c -= '0';
+ else if (ISALPHA (c))
+ c = TOUPPER (c) - 'A' + 10;
+ else
+ break;
+ if (c >= base)
+ break;
+ /* Check for overflow. */
+ if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
+ overflow = TRUE;
+ else
+ {
+ ui64 *= base;
+ ui64 += c;
+ }
+ }
+
+ /* Check if anything actually happened. */
+ if (s == save)
+ goto noconv;
+
+ /* Store in ENDPTR the address of one character
+ past the last character we converted. */
+ if (endptr)
+ *endptr = (gchar*) s;
+
+ if (overflow)
+ {
+ errno = ERANGE;
+ return G_MAXUINT64;
+ }
+
+ /* Return the result of the appropriate sign. */
+ return negative ? -ui64 : ui64;
+
+ noconv:
+ /* We must handle a special case here: the base is 0 or 16 and the
+ first two characters are '0' and 'x', but the rest are no
+ hexadecimal digits. This is no error case. We return 0 and
+ ENDPTR points to the `x`. */
+ if (endptr)
+ {
+ if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
+ && save[-2] == '0')
+ *endptr = (gchar*) &save[-1];
+ else
+ /* There was no number to convert. */
+ *endptr = (gchar*) nptr;
+ }
+ return 0;
+}
+
+
+G_CONST_RETURN gchar*
g_strerror (gint errnum)
{
static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
char *msg;
+ int saved_errno = errno;
#ifdef HAVE_STRERROR
- return strerror (errnum);
+ const char *msg_locale;
+
+ msg_locale = strerror (errnum);
+ if (g_get_charset (NULL))
+ {
+ errno = saved_errno;
+ return msg_locale;
+ }
+ else
+ {
+ gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
+ if (msg_utf8)
+ {
+ /* Stick in the quark table so that we can return a static result
+ */
+ GQuark msg_quark = g_quark_from_string (msg_utf8);
+ g_free (msg_utf8);
+
+ msg_utf8 = (gchar *) g_quark_to_string (msg_quark);
+ errno = saved_errno;
+ return msg_utf8;
+ }
+ }
#elif NO_SYS_ERRLIST
switch (errnum)
{
case EISCONN: return "socket is already connected";
#endif
#ifdef EISDIR
- case EISDIR: return "illegal operation on a directory";
+ case EISDIR: return "is a directory";
#endif
#ifdef EISNAME
case EISNAM: return "is a name file";
#endif /* NO_SYS_ERRLIST */
msg = g_static_private_get (&msg_private);
- if( !msg )
+ if (!msg)
{
- msg = g_new( gchar, 64 );
+ msg = g_new (gchar, 64);
g_static_private_set (&msg_private, msg, g_free);
}
- sprintf (msg, "unknown error (%d)", errnum);
+ _g_sprintf (msg, "unknown error (%d)", errnum);
+
+ errno = saved_errno;
return msg;
}
-gchar*
+G_CONST_RETURN gchar*
g_strsignal (gint signum)
{
static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
char *msg;
#ifdef HAVE_STRSIGNAL
+ const char *msg_locale;
+
+#if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN)
+extern const char *strsignal(int);
+#else
+ /* this is declared differently (const) in string.h on BeOS */
extern char *strsignal (int sig);
- return strsignal (signum);
+#endif /* !G_OS_BEOS && !G_WITH_CYGWIN */
+ msg_locale = strsignal (signum);
+ if (g_get_charset (NULL))
+ return msg_locale;
+ else
+ {
+ gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
+ if (msg_utf8)
+ {
+ /* Stick in the quark table so that we can return a static result
+ */
+ GQuark msg_quark = g_quark_from_string (msg_utf8);
+ g_free (msg_utf8);
+
+ return g_quark_to_string (msg_quark);
+ }
+ }
#elif NO_SYS_SIGLIST
switch (signum)
{
}
#else /* NO_SYS_SIGLIST */
-#ifndef NO_SYS_SIGLIST_DECL
- /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
- extern char *sys_siglist[];
+#ifdef NO_SYS_SIGLIST_DECL
+ extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
#endif
return (char*) /* this function should return const --josh */ sys_siglist [signum];
#endif /* NO_SYS_SIGLIST */
msg = g_static_private_get (&msg_private);
- if( !msg )
+ if (!msg)
{
- msg = g_new( gchar, 64 );
+ msg = g_new (gchar, 64);
g_static_private_set (&msg_private, msg, g_free);
}
- sprintf (msg, "unknown signal (%d)", signum);
+ _g_sprintf (msg, "unknown signal (%d)", signum);
+
return msg;
}
-guint
-g_printf_string_upper_bound (const gchar* format,
- va_list args)
+/* Functions g_strlcpy and g_strlcat were originally developed by
+ * Todd C. Miller <Todd.Miller@courtesan.com> to simplify writing secure code.
+ * See ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/strlcpy.3
+ * for more information.
+ */
+
+#ifdef HAVE_STRLCPY
+/* Use the native ones, if available; they might be implemented in assembly */
+gsize
+g_strlcpy (gchar *dest,
+ const gchar *src,
+ gsize dest_size)
{
- guint len = 1;
+ g_return_val_if_fail (dest != NULL, 0);
+ g_return_val_if_fail (src != NULL, 0);
+
+ return strlcpy (dest, src, dest_size);
+}
- while (*format)
- {
- gboolean long_int = FALSE;
- gboolean extra_long = FALSE;
- gchar c;
+gsize
+g_strlcat (gchar *dest,
+ const gchar *src,
+ gsize dest_size)
+{
+ g_return_val_if_fail (dest != NULL, 0);
+ g_return_val_if_fail (src != NULL, 0);
+
+ return strlcat (dest, src, dest_size);
+}
- c = *format++;
+#else /* ! HAVE_STRLCPY */
+/* g_strlcpy
+ *
+ * Copy string src to buffer dest (of buffer size dest_size). At most
+ * dest_size-1 characters will be copied. Always NUL terminates
+ * (unless dest_size == 0). This function does NOT allocate memory.
+ * Unlike strncpy, this function doesn't pad dest (so it's often faster).
+ * Returns size of attempted result, strlen(src),
+ * so if retval >= dest_size, truncation occurred.
+ */
+gsize
+g_strlcpy (gchar *dest,
+ const gchar *src,
+ gsize dest_size)
+{
+ register gchar *d = dest;
+ register const gchar *s = src;
+ register gsize n = dest_size;
+
+ g_return_val_if_fail (dest != NULL, 0);
+ g_return_val_if_fail (src != NULL, 0);
+
+ /* Copy as many bytes as will fit */
+ if (n != 0 && --n != 0)
+ do
+ {
+ register gchar c = *s++;
+
+ *d++ = c;
+ if (c == 0)
+ break;
+ }
+ while (--n != 0);
+
+ /* If not enough room in dest, add NUL and traverse rest of src */
+ if (n == 0)
+ {
+ if (dest_size != 0)
+ *d = 0;
+ while (*s++)
+ ;
+ }
+
+ return s - src - 1; /* count does not include NUL */
+}
- if (c == '%')
+/* g_strlcat
+ *
+ * Appends string src to buffer dest (of buffer size dest_size).
+ * At most dest_size-1 characters will be copied.
+ * Unlike strncat, dest_size is the full size of dest, not the space left over.
+ * This function does NOT allocate memory.
+ * This always NUL terminates (unless siz == 0 or there were no NUL characters
+ * in the dest_size characters of dest to start with).
+ * Returns size of attempted result, which is
+ * MIN (dest_size, strlen (original dest)) + strlen (src),
+ * so if retval >= dest_size, truncation occurred.
+ */
+gsize
+g_strlcat (gchar *dest,
+ const gchar *src,
+ gsize dest_size)
+{
+ register gchar *d = dest;
+ register const gchar *s = src;
+ register gsize bytes_left = dest_size;
+ gsize dlength; /* Logically, MIN (strlen (d), dest_size) */
+
+ g_return_val_if_fail (dest != NULL, 0);
+ g_return_val_if_fail (src != NULL, 0);
+
+ /* Find the end of dst and adjust bytes left but don't go past end */
+ while (*d != 0 && bytes_left-- != 0)
+ d++;
+ dlength = d - dest;
+ bytes_left = dest_size - dlength;
+
+ if (bytes_left == 0)
+ return dlength + strlen (s);
+
+ while (*s != 0)
+ {
+ if (bytes_left != 1)
{
- gboolean done = FALSE;
-
- while (*format && !done)
- {
- switch (*format++)
- {
- gchar *string_arg;
-
- case '*':
- len += va_arg (args, int);
- break;
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- /* add specified format length, since it might exceed the
- * size we assume it to have.
- */
- format -= 1;
- len += strtol (format, (char**) &format, 10);
- break;
- case 'h':
- /* ignore short int flag, since all args have at least the
- * same size as an int
- */
- break;
- case 'l':
- if (long_int)
- extra_long = TRUE; /* linux specific */
- else
- long_int = TRUE;
- break;
- case 'q':
- case 'L':
- long_int = TRUE;
- extra_long = TRUE;
- break;
- case 's':
- string_arg = va_arg (args, char *);
- if (string_arg)
- len += strlen (string_arg);
- else
- {
- /* add enough padding to hold "(null)" identifier */
- len += 16;
- }
- done = TRUE;
- break;
- case 'd':
- case 'i':
- case 'o':
- case 'u':
- case 'x':
- case 'X':
-#ifdef G_HAVE_GINT64
- if (extra_long)
- (void) va_arg (args, gint64);
- else
-#endif /* G_HAVE_GINT64 */
- {
- if (long_int)
- (void) va_arg (args, long);
- else
- (void) va_arg (args, int);
- }
- len += extra_long ? 64 : 32;
- done = TRUE;
- break;
- case 'D':
- case 'O':
- case 'U':
- (void) va_arg (args, long);
- len += 32;
- done = TRUE;
- break;
- case 'e':
- case 'E':
- case 'f':
- case 'g':
-#ifdef HAVE_LONG_DOUBLE
- if (extra_long)
- (void) va_arg (args, long double);
- else
-#endif /* HAVE_LONG_DOUBLE */
- (void) va_arg (args, double);
- len += extra_long ? 64 : 32;
- done = TRUE;
- break;
- case 'c':
- (void) va_arg (args, int);
- len += 1;
- done = TRUE;
- break;
- case 'p':
- case 'n':
- (void) va_arg (args, void*);
- len += 32;
- done = TRUE;
- break;
- case '%':
- len += 1;
- done = TRUE;
- break;
- default:
- /* ignore unknow/invalid flags */
- break;
- }
- }
+ *d++ = *s;
+ bytes_left--;
}
- else
- len += 1;
+ s++;
}
-
- return len;
+ *d = 0;
+
+ return dlength + (s - src); /* count does not include NUL */
+}
+#endif /* ! HAVE_STRLCPY */
+
+/**
+ * g_ascii_strdown:
+ * @str: a string.
+ * @len: length of @str in bytes, or -1 if @str is nul-terminated.
+ *
+ * Converts all upper case ASCII letters to lower case ASCII letters.
+ *
+ * Return value: a newly-allocated string, with all the upper case
+ * characters in @str converted to lower case, with
+ * semantics that exactly match g_ascii_tolower(). (Note
+ * that this is unlike the old g_strdown(), which modified
+ * the string in place.)
+ **/
+gchar*
+g_ascii_strdown (const gchar *str,
+ gssize len)
+{
+ gchar *result, *s;
+
+ g_return_val_if_fail (str != NULL, NULL);
+
+ if (len < 0)
+ len = strlen (str);
+
+ result = g_strndup (str, len);
+ for (s = result; *s; s++)
+ *s = g_ascii_tolower (*s);
+
+ return result;
}
-void
-g_strdown (gchar *string)
+/**
+ * g_ascii_strup:
+ * @str: a string.
+ * @len: length of @str in bytes, or -1 if @str is nul-terminated.
+ *
+ * Converts all lower case ASCII letters to upper case ASCII letters.
+ *
+ * Return value: a newly allocated string, with all the lower case
+ * characters in @str converted to upper case, with
+ * semantics that exactly match g_ascii_toupper(). (Note
+ * that this is unlike the old g_strup(), which modified
+ * the string in place.)
+ **/
+gchar*
+g_ascii_strup (const gchar *str,
+ gssize len)
{
- register gchar *s;
+ gchar *result, *s;
- g_return_if_fail (string != NULL);
+ g_return_val_if_fail (str != NULL, NULL);
- s = string;
+ if (len < 0)
+ len = strlen (str);
+
+ result = g_strndup (str, len);
+ for (s = result; *s; s++)
+ *s = g_ascii_toupper (*s);
+
+ return result;
+}
+/**
+ * g_strdown:
+ * @string: the string to convert.
+ *
+ * Converts a string to lower case.
+ *
+ * Return value: the string
+ *
+ * Deprecated: This function is totally broken for the reasons discussed in
+ * the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
+ * instead.
+ **/
+gchar*
+g_strdown (gchar *string)
+{
+ register guchar *s;
+
+ g_return_val_if_fail (string != NULL, NULL);
+
+ s = (guchar *) string;
+
while (*s)
{
- *s = tolower (*s);
+ if (isupper (*s))
+ *s = tolower (*s);
s++;
}
+
+ return (gchar *) string;
}
-void
-g_strup (gchar *string)
+/**
+ * g_strup:
+ * @string: the string to convert.
+ *
+ * Converts a string to upper case.
+ *
+ * Return value: the string
+ *
+ * Deprecated: This function is totally broken for the reasons discussed in
+ * the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
+ **/
+gchar*
+g_strup (gchar *string)
{
- register gchar *s;
+ register guchar *s;
- g_return_if_fail (string != NULL);
+ g_return_val_if_fail (string != NULL, NULL);
- s = string;
+ s = (guchar *) string;
while (*s)
{
- *s = toupper (*s);
+ if (islower (*s))
+ *s = toupper (*s);
s++;
}
+
+ return (gchar *) string;
}
-void
-g_strreverse (gchar *string)
+gchar*
+g_strreverse (gchar *string)
{
- g_return_if_fail (string != NULL);
+ g_return_val_if_fail (string != NULL, NULL);
if (*string)
{
t--;
}
}
+
+ return string;
+}
+
+/**
+ * g_ascii_tolower:
+ * @c: any character.
+ *
+ * Convert a character to ASCII lower case.
+ *
+ * Unlike the standard C library tolower() function, this only
+ * recognizes standard ASCII letters and ignores the locale, returning
+ * all non-ASCII characters unchanged, even if they are lower case
+ * letters in a particular character set. Also unlike the standard
+ * library function, this takes and returns a char, not an int, so
+ * don't call it on %EOF but no need to worry about casting to #guchar
+ * before passing a possibly non-ASCII character in.
+ *
+ * Return value: the result of converting @c to lower case.
+ * If @c is not an ASCII upper case letter,
+ * @c is returned unchanged.
+ **/
+gchar
+g_ascii_tolower (gchar c)
+{
+ return g_ascii_isupper (c) ? c - 'A' + 'a' : c;
+}
+
+/**
+ * g_ascii_toupper:
+ * @c: any character.
+ *
+ * Convert a character to ASCII upper case.
+ *
+ * Unlike the standard C library toupper() function, this only
+ * recognizes standard ASCII letters and ignores the locale, returning
+ * all non-ASCII characters unchanged, even if they are upper case
+ * letters in a particular character set. Also unlike the standard
+ * library function, this takes and returns a char, not an int, so
+ * don't call it on %EOF but no need to worry about casting to #guchar
+ * before passing a possibly non-ASCII character in.
+ *
+ * Return value: the result of converting @c to upper case.
+ * If @c is not an ASCII lower case letter,
+ * @c is returned unchanged.
+ **/
+gchar
+g_ascii_toupper (gchar c)
+{
+ return g_ascii_islower (c) ? c - 'a' + 'A' : c;
+}
+
+/**
+ * g_ascii_digit_value:
+ * @c: an ASCII character.
+ *
+ * Determines the numeric value of a character as a decimal
+ * digit. Differs from g_unichar_digit_value() because it takes
+ * a char, so there's no worry about sign extension if characters
+ * are signed.
+ *
+ * Return value: If @c is a decimal digit (according to
+ * g_ascii_isdigit()), its numeric value. Otherwise, -1.
+ **/
+int
+g_ascii_digit_value (gchar c)
+{
+ if (g_ascii_isdigit (c))
+ return c - '0';
+ return -1;
+}
+
+/**
+ * g_ascii_xdigit_value:
+ * @c: an ASCII character.
+ *
+ * Determines the numeric value of a character as a hexidecimal
+ * digit. Differs from g_unichar_xdigit_value() because it takes
+ * a char, so there's no worry about sign extension if characters
+ * are signed.
+ *
+ * Return value: If @c is a hex digit (according to
+ * g_ascii_isxdigit()), its numeric value. Otherwise, -1.
+ **/
+int
+g_ascii_xdigit_value (gchar c)
+{
+ if (c >= 'A' && c <= 'F')
+ return c - 'A' + 10;
+ if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ return g_ascii_digit_value (c);
}
+/**
+ * g_ascii_strcasecmp:
+ * @s1: string to compare with @s2.
+ * @s2: string to compare with @s1.
+ *
+ * Compare two strings, ignoring the case of ASCII characters.
+ *
+ * Unlike the BSD strcasecmp() function, this only recognizes standard
+ * ASCII letters and ignores the locale, treating all non-ASCII
+ * characters as if they are not letters.
+ *
+ * Return value: an integer less than, equal to, or greater than
+ * zero if @s1 is found, respectively, to be less than,
+ * to match, or to be greater than @s2.
+ **/
+gint
+g_ascii_strcasecmp (const gchar *s1,
+ const gchar *s2)
+{
+ gint c1, c2;
+
+ g_return_val_if_fail (s1 != NULL, 0);
+ g_return_val_if_fail (s2 != NULL, 0);
+
+ while (*s1 && *s2)
+ {
+ c1 = (gint)(guchar) TOLOWER (*s1);
+ c2 = (gint)(guchar) TOLOWER (*s2);
+ if (c1 != c2)
+ return (c1 - c2);
+ s1++; s2++;
+ }
+
+ return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
+}
+
+/**
+ * g_ascii_strncasecmp:
+ * @s1: string to compare with @s2.
+ * @s2: string to compare with @s1.
+ * @n: number of characters to compare.
+ *
+ * Compare @s1 and @s2, ignoring the case of ASCII characters and any
+ * characters after the first @n in each string.
+ *
+ * Unlike the BSD strcasecmp() function, this only recognizes standard
+ * ASCII letters and ignores the locale, treating all non-ASCII
+ * characters as if they are not letters.
+ *
+ * Return value: an integer less than, equal to, or greater than zero
+ * if the first @n bytes of @s1 is found, respectively,
+ * to be less than, to match, or to be greater than the
+ * first @n bytes of @s2.
+ **/
+gint
+g_ascii_strncasecmp (const gchar *s1,
+ const gchar *s2,
+ gsize n)
+{
+ gint c1, c2;
+
+ g_return_val_if_fail (s1 != NULL, 0);
+ g_return_val_if_fail (s2 != NULL, 0);
+
+ while (n && *s1 && *s2)
+ {
+ n -= 1;
+ c1 = (gint)(guchar) TOLOWER (*s1);
+ c2 = (gint)(guchar) TOLOWER (*s2);
+ if (c1 != c2)
+ return (c1 - c2);
+ s1++; s2++;
+ }
+
+ if (n)
+ return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
+ else
+ return 0;
+}
+
+/**
+ * g_strcasecmp:
+ * @s1: a string.
+ * @s2: a string to compare with @s1.
+ *
+ * A case-insensitive string comparison, corresponding to the standard
+ * strcasecmp() function on platforms which support it.
+ *
+ * Return value: 0 if the strings match, a negative value if @s1 < @s2,
+ * or a positive value if @s1 > @s2.
+ *
+ * Deprecated: See g_strncasecmp() for a discussion of why this function is
+ * deprecated and how to replace it.
+ **/
gint
g_strcasecmp (const gchar *s1,
const gchar *s2)
{
#ifdef HAVE_STRCASECMP
+ g_return_val_if_fail (s1 != NULL, 0);
+ g_return_val_if_fail (s2 != NULL, 0);
+
return strcasecmp (s1, s2);
#else
gint c1, c2;
#endif
}
+/**
+ * g_strncasecmp:
+ * @s1: a string.
+ * @s2: a string to compare with @s1.
+ * @n: the maximum number of characters to compare.
+ *
+ * A case-insensitive string comparison, corresponding to the standard
+ * strncasecmp() function on platforms which support it.
+ * It is similar to g_strcasecmp() except it only compares the first @n
+ * characters of the strings.
+ *
+ * Return value: 0 if the strings match, a negative value if @s1 < @s2,
+ * or a positive value if @s1 > @s2.
+ *
+ * Deprecated: The problem with g_strncasecmp() is that it does the
+ * comparison by calling toupper()/tolower(). These functions are
+ * locale-specific and operate on single bytes. However, it is impossible
+ * to handle things correctly from an I18N standpoint by operating on
+ * bytes, since characters may be multibyte. Thus g_strncasecmp() is
+ * broken if your string is guaranteed to be ASCII, since it's
+ * locale-sensitive, and it's broken if your string is localized, since
+ * it doesn't work on many encodings at all, including UTF-8, EUC-JP,
+ * etc.
+ *
+ * There are therefore two replacement functions: g_ascii_strncasecmp(),
+ * which only works on ASCII and is not locale-sensitive, and
+ * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8.
+ **/
gint
g_strncasecmp (const gchar *s1,
const gchar *s2,
- guint n)
+ gsize n)
{
#ifdef HAVE_STRNCASECMP
return strncasecmp (s1, s2, n);
g_return_val_if_fail (s1 != NULL, 0);
g_return_val_if_fail (s2 != NULL, 0);
- while (n-- && *s1 && *s2)
+ while (n && *s1 && *s2)
{
+ n -= 1;
/* According to A. Cox, some platforms have islower's that
* don't work right on non-uppercase
*/
}
if (n)
- return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
+ return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
else
return 0;
#endif
}
gchar*
-g_strescape (gchar *string)
+g_strcanon (gchar *string,
+ const gchar *valid_chars,
+ gchar substitutor)
{
- gchar *q;
- gchar *escaped;
- guint backslashes = 0;
- gchar *p = string;
+ register gchar *c;
g_return_val_if_fail (string != NULL, NULL);
+ g_return_val_if_fail (valid_chars != NULL, NULL);
- while (*p != '\000')
- backslashes += (*p++ == '\\');
+ for (c = string; *c; c++)
+ {
+ if (!strchr (valid_chars, *c))
+ *c = substitutor;
+ }
+
+ return string;
+}
- if (!backslashes)
- return g_strdup (string);
+gchar*
+g_strcompress (const gchar *source)
+{
+ const gchar *p = source, *octal;
+ gchar *dest = g_malloc (strlen (source) + 1);
+ gchar *q = dest;
+
+ while (*p)
+ {
+ if (*p == '\\')
+ {
+ p++;
+ switch (*p)
+ {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7':
+ *q = 0;
+ octal = p;
+ while ((p < octal + 3) && (*p >= '0') && (*p <= '7'))
+ {
+ *q = (*q * 8) + (*p - '0');
+ p++;
+ }
+ q++;
+ p--;
+ break;
+ case 'b':
+ *q++ = '\b';
+ break;
+ case 'f':
+ *q++ = '\f';
+ break;
+ case 'n':
+ *q++ = '\n';
+ break;
+ case 'r':
+ *q++ = '\r';
+ break;
+ case 't':
+ *q++ = '\t';
+ break;
+ default: /* Also handles \" and \\ */
+ *q++ = *p;
+ break;
+ }
+ }
+ else
+ *q++ = *p;
+ p++;
+ }
+ *q = 0;
+
+ return dest;
+}
- escaped = g_new (gchar, strlen (string) + backslashes + 1);
+gchar *
+g_strescape (const gchar *source,
+ const gchar *exceptions)
+{
+ const guchar *p;
+ gchar *dest;
+ gchar *q;
+ guchar excmap[256];
+
+ g_return_val_if_fail (source != NULL, NULL);
- p = string;
- q = escaped;
+ p = (guchar *) source;
+ /* Each source byte needs maximally four destination chars (\777) */
+ q = dest = g_malloc (strlen (source) * 4 + 1);
- while (*p != '\000')
+ memset (excmap, 0, 256);
+ if (exceptions)
{
- if (*p == '\\')
- *q++ = '\\';
- *q++ = *p++;
+ guchar *e = (guchar *) exceptions;
+
+ while (*e)
+ {
+ excmap[*e] = 1;
+ e++;
+ }
}
- *q = '\000';
- return escaped;
+ while (*p)
+ {
+ if (excmap[*p])
+ *q++ = *p;
+ else
+ {
+ switch (*p)
+ {
+ case '\b':
+ *q++ = '\\';
+ *q++ = 'b';
+ break;
+ case '\f':
+ *q++ = '\\';
+ *q++ = 'f';
+ break;
+ case '\n':
+ *q++ = '\\';
+ *q++ = 'n';
+ break;
+ case '\r':
+ *q++ = '\\';
+ *q++ = 'r';
+ break;
+ case '\t':
+ *q++ = '\\';
+ *q++ = 't';
+ break;
+ case '\\':
+ *q++ = '\\';
+ *q++ = '\\';
+ break;
+ case '"':
+ *q++ = '\\';
+ *q++ = '"';
+ break;
+ default:
+ if ((*p < ' ') || (*p >= 0177))
+ {
+ *q++ = '\\';
+ *q++ = '0' + (((*p) >> 6) & 07);
+ *q++ = '0' + (((*p) >> 3) & 07);
+ *q++ = '0' + ((*p) & 07);
+ }
+ else
+ *q++ = *p;
+ break;
+ }
+ }
+ p++;
+ }
+ *q = 0;
+ return dest;
}
-/* blame Elliot for these next five routines */
gchar*
g_strchug (gchar *string)
{
- gchar *start;
+ guchar *start;
g_return_val_if_fail (string != NULL, NULL);
- for (start = string; *start && isspace (*start); start++)
+ for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
;
- strcpy (string, start);
+ g_memmove (string, start, strlen ((gchar *) start) + 1);
return string;
}
gchar*
g_strchomp (gchar *string)
{
- gchar *s;
+ gsize len;
g_return_val_if_fail (string != NULL, NULL);
- if (!*string)
- return string;
-
- for (s = string + strlen (string) - 1; s >= string && isspace (*s); s--)
- *s = '\0';
+ len = strlen (string);
+ while (len--)
+ {
+ if (g_ascii_isspace ((guchar) string[len]))
+ string[len] = '\0';
+ else
+ break;
+ }
return string;
}
+/**
+ * g_strsplit:
+ * @string: a string to split.
+ * @delimiter: a string which specifies the places at which to split the string.
+ * The delimiter is not included in any of the resulting strings, unless
+ * @max_tokens is reached.
+ * @max_tokens: the maximum number of pieces to split @string into. If this is
+ * less than 1, the string is split completely.
+ *
+ * Splits a string into a maximum of @max_tokens pieces, using the given
+ * @delimiter. If @max_tokens is reached, the remainder of @string is appended
+ * to the last token.
+ *
+ * As a special case, the result of splitting the empty string "" is an empty
+ * vector, not a vector containing a single string. The reason for this
+ * special case is that being able to represent a empty vector is typically
+ * more useful than consistent handling of empty elements. If you do need
+ * to represent empty elements, you'll need to check for the empty string
+ * before calling g_strsplit().
+ *
+ * Return value: a newly-allocated %NULL-terminated array of strings. Use
+ * g_strfreev() to free it.
+ **/
gchar**
g_strsplit (const gchar *string,
const gchar *delimiter,
{
GSList *string_list = NULL, *slist;
gchar **str_array, *s;
- guint i, n = 1;
+ guint n = 0;
+ const gchar *remainder;
g_return_val_if_fail (string != NULL, NULL);
g_return_val_if_fail (delimiter != NULL, NULL);
+ g_return_val_if_fail (delimiter[0] != '\0', NULL);
if (max_tokens < 1)
max_tokens = G_MAXINT;
- s = strstr (string, delimiter);
+ remainder = string;
+ s = strstr (remainder, delimiter);
if (s)
{
- guint delimiter_len = strlen (delimiter);
+ gsize delimiter_len = strlen (delimiter);
- do
+ while (--max_tokens && s)
{
- guint len;
+ gsize len;
gchar *new_string;
- len = s - string;
+ len = s - remainder;
new_string = g_new (gchar, len + 1);
- strncpy (new_string, string, len);
+ strncpy (new_string, remainder, len);
new_string[len] = 0;
string_list = g_slist_prepend (string_list, new_string);
n++;
- string = s + delimiter_len;
- s = strstr (string, delimiter);
+ remainder = s + delimiter_len;
+ s = strstr (remainder, delimiter);
}
- while (--max_tokens && s);
}
if (*string)
{
n++;
- string_list = g_slist_prepend (string_list, g_strdup (string));
+ string_list = g_slist_prepend (string_list, g_strdup (remainder));
}
- str_array = g_new (gchar*, n);
+ str_array = g_new (gchar*, n + 1);
- i = n - 1;
-
- str_array[i--] = NULL;
+ str_array[n--] = NULL;
for (slist = string_list; slist; slist = slist->next)
- str_array[i--] = slist->data;
+ str_array[n--] = slist->data;
g_slist_free (string_list);
return str_array;
}
+/**
+ * g_strsplit_set:
+ * @string: The string to be tokenized
+ * @delimiters: A nul-terminated string containing bytes that are used
+ * to split the string.
+ * @max_tokens: The maximum number of tokens to split @string into.
+ * If this is less than 1, the string is split completely
+ *
+ * Splits @string into a number of tokens not containing any of the characters
+ * in @delimiter. A token is the (possibly empty) longest string that does not
+ * contain any of the characters in @delimiters. If @max_tokens is reached, the
+ * remainder is appended to the last token.
+ *
+ * For example the result of g_strtokenize ("abc:def/ghi", ":/", -1) is a
+ * %NULL-terminated vector containing the three strings "abc", "def",
+ * and "ghi".
+ *
+ * The result if g_strtokenize (":def/ghi:", ":/", -1) is a %NULL-terminated
+ * vector containing the four strings "", "def", "ghi", and "".
+ *
+ * As a special case, the result of splitting the empty string "" is an empty
+ * vector, not a vector containing a single string. The reason for this
+ * special case is that being able to represent a empty vector is typically
+ * more useful than consistent handling of empty elements. If you do need
+ * to represent empty elements, you'll need to check for the empty string
+ * before calling g_strsplit().
+ *
+ * Note that this function works on bytes not characters, so it can't be used
+ * to delimit UTF-8 strings for anything but ASCII characters.
+ *
+ * Return value: a newly-allocated %NULL-terminated array of strings. Use
+ * g_strfreev() to free it.
+ *
+ * Since: 2.4
+ **/
+gchar **
+g_strsplit_set (const gchar *string,
+ const gchar *delimiters,
+ gint max_tokens)
+{
+ gboolean delim_table[256];
+ GSList *tokens, *list;
+ gint n_tokens;
+ const gchar *s;
+ const gchar *current;
+ gchar *token;
+ gchar **result;
+
+ g_return_val_if_fail (string != NULL, NULL);
+ g_return_val_if_fail (delimiters != NULL, NULL);
+
+ if (max_tokens < 1)
+ max_tokens = G_MAXINT;
+
+ if (*string == '\0')
+ {
+ result = g_new (char *, 1);
+ result[0] = NULL;
+ return result;
+ }
+
+ memset (delim_table, FALSE, sizeof (delim_table));
+ for (s = delimiters; *s != '\0'; ++s)
+ delim_table[*(guchar *)s] = TRUE;
+
+ tokens = NULL;
+ n_tokens = 0;
+
+ s = current = string;
+ while (*s != '\0')
+ {
+ if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens)
+ {
+ gchar *token;
+
+ token = g_strndup (current, s - current);
+ tokens = g_slist_prepend (tokens, token);
+ ++n_tokens;
+
+ current = s + 1;
+ }
+
+ ++s;
+ }
+
+ token = g_strndup (current, s - current);
+ tokens = g_slist_prepend (tokens, token);
+ ++n_tokens;
+
+ result = g_new (gchar *, n_tokens + 1);
+
+ result[n_tokens] = NULL;
+ for (list = tokens; list != NULL; list = list->next)
+ result[--n_tokens] = list->data;
+
+ g_slist_free (tokens);
+
+ return result;
+}
+
+/**
+ * g_strfreev:
+ * @str_array: a %NULL-terminated array of strings to free.
+
+ * Frees a %NULL-terminated array of strings, and the array itself.
+ * If called on a %NULL value, g_strfreev() simply returns.
+ **/
void
g_strfreev (gchar **str_array)
{
}
}
+/**
+ * g_strdupv:
+ * @str_array: %NULL-terminated array of strings.
+ *
+ * Copies %NULL-terminated array of strings. The copy is a deep copy;
+ * the new array should be freed by first freeing each string, then
+ * the array itself. g_strfreev() does this for you. If called
+ * on a %NULL value, g_strdupv() simply returns %NULL.
+ *
+ * Return value: a new %NULL-terminated array of strings.
+ **/
+gchar**
+g_strdupv (gchar **str_array)
+{
+ if (str_array)
+ {
+ gint i;
+ gchar **retval;
+
+ i = 0;
+ while (str_array[i])
+ ++i;
+
+ retval = g_new (gchar*, i + 1);
+
+ i = 0;
+ while (str_array[i])
+ {
+ retval[i] = g_strdup (str_array[i]);
+ ++i;
+ }
+ retval[i] = NULL;
+
+ return retval;
+ }
+ else
+ return NULL;
+}
+
gchar*
g_strjoinv (const gchar *separator,
gchar **str_array)
{
gchar *string;
+ gchar *ptr;
g_return_val_if_fail (str_array != NULL, NULL);
- if(separator == NULL)
+ if (separator == NULL)
separator = "";
if (*str_array)
{
- guint i, len;
- guint separator_len;
+ gint i;
+ gsize len;
+ gsize separator_len;
separator_len = strlen (separator);
+ /* First part, getting length */
len = 1 + strlen (str_array[0]);
- for(i = 1; str_array[i] != NULL; i++)
- len += separator_len + strlen(str_array[i]);
+ for (i = 1; str_array[i] != NULL; i++)
+ len += strlen (str_array[i]);
+ len += separator_len * (i - 1);
+ /* Second part, building string */
string = g_new (gchar, len);
- *string = 0;
- strcat (string, *str_array);
+ ptr = g_stpcpy (string, *str_array);
for (i = 1; str_array[i] != NULL; i++)
{
- strcat (string, separator);
- strcat (string, str_array[i]);
+ ptr = g_stpcpy (ptr, separator);
+ ptr = g_stpcpy (ptr, str_array[i]);
}
}
else
{
gchar *string, *s;
va_list args;
- guint len;
- guint separator_len;
+ gsize len;
+ gsize separator_len;
+ gchar *ptr;
- if(separator == NULL)
+ if (separator == NULL)
separator = "";
separator_len = strlen (separator);
- va_start(args, separator);
+ va_start (args, separator);
- s = va_arg(args, gchar *);
-
- if(s) {
- len = strlen(s) + 1;
+ s = va_arg (args, gchar*);
- while((s = va_arg(args, gchar*)))
- {
- len += separator_len + strlen(s);
- }
- va_end(args);
+ if (s)
+ {
+ /* First part, getting length */
+ len = 1 + strlen (s);
- string = g_new (gchar, len);
+ s = va_arg (args, gchar*);
+ while (s)
+ {
+ len += separator_len + strlen (s);
+ s = va_arg (args, gchar*);
+ }
+ va_end (args);
- va_start(args, separator);
+ /* Second part, building string */
+ string = g_new (gchar, len);
- *string = 0;
- s = va_arg(args, gchar*);
- strcat (string, s);
+ va_start (args, separator);
- while((s = va_arg(args, gchar*)))
- {
- strcat(string, separator);
- strcat(string, s);
- }
+ s = va_arg (args, gchar*);
+ ptr = g_stpcpy (string, s);
- } else
- string = g_strdup("");
+ s = va_arg (args, gchar*);
+ while (s)
+ {
+ ptr = g_stpcpy (ptr, separator);
+ ptr = g_stpcpy (ptr, s);
+ s = va_arg (args, gchar*);
+ }
+ }
+ else
+ string = g_strdup ("");
- va_end(args);
+ va_end (args);
return string;
}
+
+
+/**
+ * g_strstr_len:
+ * @haystack: a string.
+ * @haystack_len: the maximum length of @haystack.
+ * @needle: the string to search for.
+ *
+ * Searches the string @haystack for the first occurrence
+ * of the string @needle, limiting the length of the search
+ * to @haystack_len.
+ *
+ * Return value: a pointer to the found occurrence, or
+ * %NULL if not found.
+ **/
+gchar *
+g_strstr_len (const gchar *haystack,
+ gssize haystack_len,
+ const gchar *needle)
+{
+ g_return_val_if_fail (haystack != NULL, NULL);
+ g_return_val_if_fail (needle != NULL, NULL);
+
+ if (haystack_len < 0)
+ return strstr (haystack, needle);
+ else
+ {
+ const gchar *p = haystack;
+ gsize needle_len = strlen (needle);
+ const gchar *end;
+ gsize i;
+
+ if (needle_len == 0)
+ return (gchar *)haystack;
+
+ if (haystack_len < needle_len)
+ return NULL;
+
+ end = haystack + haystack_len - needle_len;
+
+ while (*p && p <= end)
+ {
+ for (i = 0; i < needle_len; i++)
+ if (p[i] != needle[i])
+ goto next;
+
+ return (gchar *)p;
+
+ next:
+ p++;
+ }
+
+ return NULL;
+ }
+}
+
+/**
+ * g_strrstr:
+ * @haystack: a nul-terminated string.
+ * @needle: the nul-terminated string to search for.
+ *
+ * Searches the string @haystack for the last occurrence
+ * of the string @needle.
+ *
+ * Return value: a pointer to the found occurrence, or
+ * %NULL if not found.
+ **/
+gchar *
+g_strrstr (const gchar *haystack,
+ const gchar *needle)
+{
+ gsize i;
+ gsize needle_len;
+ gsize haystack_len;
+ const gchar *p;
+
+ g_return_val_if_fail (haystack != NULL, NULL);
+ g_return_val_if_fail (needle != NULL, NULL);
+
+ needle_len = strlen (needle);
+ haystack_len = strlen (haystack);
+
+ if (needle_len == 0)
+ return (gchar *)haystack;
+
+ if (haystack_len < needle_len)
+ return NULL;
+
+ p = haystack + haystack_len - needle_len;
+
+ while (p >= haystack)
+ {
+ for (i = 0; i < needle_len; i++)
+ if (p[i] != needle[i])
+ goto next;
+
+ return (gchar *)p;
+
+ next:
+ p--;
+ }
+
+ return NULL;
+}
+
+/**
+ * g_strrstr_len:
+ * @haystack: a nul-terminated string.
+ * @haystack_len: the maximum length of @haystack.
+ * @needle: the nul-terminated string to search for.
+ *
+ * Searches the string @haystack for the last occurrence
+ * of the string @needle, limiting the length of the search
+ * to @haystack_len.
+ *
+ * Return value: a pointer to the found occurrence, or
+ * %NULL if not found.
+ **/
+gchar *
+g_strrstr_len (const gchar *haystack,
+ gssize haystack_len,
+ const gchar *needle)
+{
+ g_return_val_if_fail (haystack != NULL, NULL);
+ g_return_val_if_fail (needle != NULL, NULL);
+
+ if (haystack_len < 0)
+ return g_strrstr (haystack, needle);
+ else
+ {
+ gsize needle_len = strlen (needle);
+ const gchar *haystack_max = haystack + haystack_len;
+ const gchar *p = haystack;
+ gsize i;
+
+ while (p < haystack_max && *p)
+ p++;
+
+ if (p < haystack + needle_len)
+ return NULL;
+
+ p -= needle_len;
+
+ while (p >= haystack)
+ {
+ for (i = 0; i < needle_len; i++)
+ if (p[i] != needle[i])
+ goto next;
+
+ return (gchar *)p;
+
+ next:
+ p--;
+ }
+
+ return NULL;
+ }
+}
+
+
+/**
+ * g_str_has_suffix:
+ * @str: a nul-terminated string.
+ * @suffix: the nul-terminated suffix to look for.
+ *
+ * Looks whether the string @str ends with @suffix.
+ *
+ * Return value: %TRUE if @str end with @suffix, %FALSE otherwise.
+ *
+ * Since: 2.2
+ **/
+gboolean
+g_str_has_suffix (const gchar *str,
+ const gchar *suffix)
+{
+ int str_len;
+ int suffix_len;
+
+ g_return_val_if_fail (str != NULL, FALSE);
+ g_return_val_if_fail (suffix != NULL, FALSE);
+
+ str_len = strlen (str);
+ suffix_len = strlen (suffix);
+
+ if (str_len < suffix_len)
+ return FALSE;
+
+ return strcmp (str + str_len - suffix_len, suffix) == 0;
+}
+
+/**
+ * g_str_has_prefix:
+ * @str: a nul-terminated string.
+ * @prefix: the nul-terminated prefix to look for.
+ *
+ * Looks whether the string @str begins with @prefix.
+ *
+ * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise.
+ *
+ * Since: 2.2
+ **/
+gboolean
+g_str_has_prefix (const gchar *str,
+ const gchar *prefix)
+{
+ int str_len;
+ int prefix_len;
+
+ g_return_val_if_fail (str != NULL, FALSE);
+ g_return_val_if_fail (prefix != NULL, FALSE);
+
+ str_len = strlen (str);
+ prefix_len = strlen (prefix);
+
+ if (str_len < prefix_len)
+ return FALSE;
+
+ return strncmp (str, prefix, prefix_len) == 0;
+}
+
+
+/**
+ * g_strip_context:
+ * @msgid: a string
+ * @msgval: another string
+ *
+ * An auxiliary function for gettext() support (see Q_()).
+ *
+ * Return value: @msgval, unless @msgval is identical to @msgid and contains
+ * a '|' character, in which case a pointer to the substring of msgid after
+ * the first '|' character is returned.
+ *
+ * Since: 2.4
+ **/
+G_CONST_RETURN gchar *
+g_strip_context (const gchar *msgid,
+ const gchar *msgval)
+{
+ if (msgval == msgid)
+ {
+ const char *c = strchr (msgid, '|');
+ if (c != NULL)
+ return c + 1;
+ }
+
+ return msgval;
+}