*
* 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
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* 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.
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* 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/.
+ * GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
/*
#include "config.h"
-#define _GNU_SOURCE /* For stpcpy */
-
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
+#include <locale.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>
+#include <ctype.h> /* For tolower() */
+
+#ifdef HAVE_XLOCALE_H
+/* Needed on BSD/OS X for e.g. strtod_l */
+#include <xlocale.h>
+#endif
+
+#ifdef G_OS_WIN32
+#include <windows.h>
#endif
-#include <libintl.h>
-#include "glib.h"
+/* do not include <unistd.h> here, it may interfere with g_strsignal() */
+
+#include "gstrfuncs.h"
+
#include "gprintf.h"
#include "gprintfint.h"
+#include "glibintl.h"
-#include "galias.h"
-#ifdef G_OS_WIN32
-#include <windows.h>
-#endif
+/**
+ * SECTION:string_utils
+ * @title: String Utility Functions
+ * @short_description: various string-related functions
+ *
+ * This section describes a number of utility functions for creating,
+ * duplicating, and manipulating strings.
+ *
+ * Note that the functions g_printf(), g_fprintf(), g_sprintf(),
+ * g_snprintf(), g_vprintf(), g_vfprintf(), g_vsprintf() and g_vsnprintf()
+ * are declared in the header `gprintf.h` which is not included in `glib.h`
+ * (otherwise using `glib.h` would drag in `stdio.h`), so you'll have to
+ * explicitly include `<glib/gprintf.h>` in order to use the GLib
+ * printf() functions.
+ *
+ * ## String precision pitfalls # {#string-precision}
+ *
+ * While you may use the printf() functions to format UTF-8 strings,
+ * notice that the precision of a \%Ns parameter is interpreted
+ * as the number of bytes, not characters to print. On top of that,
+ * the GNU libc implementation of the printf() functions has the
+ * "feature" that it checks that the string given for the \%Ns
+ * parameter consists of a whole number of characters in the current
+ * encoding. So, unless you are sure you are always going to be in an
+ * UTF-8 locale or your know your text is restricted to ASCII, avoid
+ * using \%Ns. If your intention is to format strings for a
+ * certain number of columns, then \%Ns is not a correct solution
+ * anyway, since it fails to take wide characters (see g_unichar_iswide())
+ * into account.
+ */
-/* do not include <unistd.h> in this place since it
- * interferes with g_strsignal() on some OSes
+/**
+ * g_ascii_isalnum:
+ * @c: any character
+ *
+ * Determines whether a character is alphanumeric.
+ *
+ * Unlike the standard C library isalnum() function, this only
+ * recognizes standard ASCII letters and ignores the locale,
+ * returning %FALSE for all non-ASCII characters. Also, unlike
+ * the standard library function, this takes a char, not an int,
+ * so don't call it on %EOF, but no need to cast to #guchar before
+ * passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII alphanumeric character
+ */
+
+/**
+ * g_ascii_isalpha:
+ * @c: any character
+ *
+ * Determines whether a character is alphabetic (i.e. a letter).
+ *
+ * Unlike the standard C library isalpha() function, this only
+ * recognizes standard ASCII letters and ignores the locale,
+ * returning %FALSE for all non-ASCII characters. Also, unlike
+ * the standard library function, this takes a char, not an int,
+ * so don't call it on %EOF, but no need to cast to #guchar before
+ * passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII alphabetic character
+ */
+
+/**
+ * g_ascii_iscntrl:
+ * @c: any character
+ *
+ * Determines whether a character is a control character.
+ *
+ * Unlike the standard C library iscntrl() function, this only
+ * recognizes standard ASCII control characters and ignores the
+ * locale, returning %FALSE for all non-ASCII characters. Also,
+ * unlike the standard library function, this takes a char, not
+ * an int, so don't call it on %EOF, but no need to cast to #guchar
+ * before passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII control character.
+ */
+
+/**
+ * g_ascii_isdigit:
+ * @c: any character
+ *
+ * Determines whether a character is digit (0-9).
+ *
+ * Unlike the standard C library isdigit() function, this takes
+ * a char, not an int, so don't call it on %EOF, but no need to
+ * cast to #guchar before passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII digit.
+ */
+
+/**
+ * g_ascii_isgraph:
+ * @c: any character
+ *
+ * Determines whether a character is a printing character and not a space.
+ *
+ * Unlike the standard C library isgraph() function, this only
+ * recognizes standard ASCII characters and ignores the locale,
+ * returning %FALSE for all non-ASCII characters. Also, unlike
+ * the standard library function, this takes a char, not an int,
+ * so don't call it on %EOF, but no need to cast to #guchar before
+ * passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII printing character other than space.
+ */
+
+/**
+ * g_ascii_islower:
+ * @c: any character
+ *
+ * Determines whether a character is an ASCII lower case letter.
+ *
+ * Unlike the standard C library islower() function, this only
+ * recognizes standard ASCII letters and ignores the locale,
+ * returning %FALSE for all non-ASCII characters. Also, unlike
+ * the standard library function, this takes 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.
+ *
+ * Returns: %TRUE if @c is an ASCII lower case letter
+ */
+
+/**
+ * g_ascii_isprint:
+ * @c: any character
+ *
+ * Determines whether a character is a printing character.
+ *
+ * Unlike the standard C library isprint() function, this only
+ * recognizes standard ASCII characters and ignores the locale,
+ * returning %FALSE for all non-ASCII characters. Also, unlike
+ * the standard library function, this takes a char, not an int,
+ * so don't call it on %EOF, but no need to cast to #guchar before
+ * passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII printing character.
+ */
+
+/**
+ * g_ascii_ispunct:
+ * @c: any character
+ *
+ * Determines whether a character is a punctuation character.
+ *
+ * Unlike the standard C library ispunct() function, this only
+ * recognizes standard ASCII letters and ignores the locale,
+ * returning %FALSE for all non-ASCII characters. Also, unlike
+ * the standard library function, this takes a char, not an int,
+ * so don't call it on %EOF, but no need to cast to #guchar before
+ * passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII punctuation character.
+ */
+
+/**
+ * g_ascii_isspace:
+ * @c: any character
+ *
+ * Determines whether a character is a white-space character.
+ *
+ * Unlike the standard C library isspace() function, this only
+ * recognizes standard ASCII white-space and ignores the locale,
+ * returning %FALSE for all non-ASCII characters. Also, unlike
+ * the standard library function, this takes a char, not an int,
+ * so don't call it on %EOF, but no need to cast to #guchar before
+ * passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII white-space character
+ */
+
+/**
+ * g_ascii_isupper:
+ * @c: any character
+ *
+ * Determines whether a character is an ASCII upper case letter.
+ *
+ * Unlike the standard C library isupper() function, this only
+ * recognizes standard ASCII letters and ignores the locale,
+ * returning %FALSE for all non-ASCII characters. Also, unlike
+ * the standard library function, this takes 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.
+ *
+ * Returns: %TRUE if @c is an ASCII upper case letter
+ */
+
+/**
+ * g_ascii_isxdigit:
+ * @c: any character
+ *
+ * Determines whether a character is a hexadecimal-digit character.
+ *
+ * Unlike the standard C library isxdigit() function, this takes
+ * a char, not an int, so don't call it on %EOF, but no need to
+ * cast to #guchar before passing a possibly non-ASCII character in.
+ *
+ * Returns: %TRUE if @c is an ASCII hexadecimal-digit character.
+ */
+
+/**
+ * G_ASCII_DTOSTR_BUF_SIZE:
+ *
+ * A good size for a buffer to be passed into g_ascii_dtostr().
+ * It is guaranteed to be enough for all output of that function
+ * on systems with 64bit IEEE-compatible doubles.
+ *
+ * The typical usage would be something like:
+ * |[<!-- language="C" -->
+ * char buf[G_ASCII_DTOSTR_BUF_SIZE];
+ *
+ * fprintf (out, "value=%s\n", g_ascii_dtostr (buf, sizeof (buf), value));
+ * ]|
+ */
+
+/**
+ * g_strstrip:
+ * @string: a string to remove the leading and trailing whitespace from
+ *
+ * Removes leading and trailing whitespace from a string.
+ * See g_strchomp() and g_strchug().
+ *
+ * Returns: @string
+ */
+
+/**
+ * G_STR_DELIMITERS:
+ *
+ * The standard delimiters, used in g_strdelimit().
*/
static const guint16 ascii_table_data[256] = {
const guint16 * const g_ascii_table = ascii_table_data;
+#if defined (HAVE_NEWLOCALE) && \
+ defined (HAVE_USELOCALE) && \
+ defined (HAVE_STRTOD_L) && \
+ defined (HAVE_STRTOULL_L) && \
+ defined (HAVE_STRTOLL_L)
+#define USE_XLOCALE 1
+#endif
+
+#ifdef USE_XLOCALE
+static locale_t
+get_C_locale (void)
+{
+ static gsize initialized = FALSE;
+ static locale_t C_locale = NULL;
+
+ if (g_once_init_enter (&initialized))
+ {
+ C_locale = newlocale (LC_ALL_MASK, "C", NULL);
+ g_once_init_leave (&initialized, TRUE);
+ }
+
+ return C_locale;
+}
+#endif
+
+/**
+ * g_strdup:
+ * @str: the string to duplicate
+ *
+ * Duplicates a string. If @str is %NULL it returns %NULL.
+ * The returned string should be freed with g_free()
+ * when no longer needed.
+ *
+ * Returns: a newly-allocated copy of @str
+ */
gchar*
g_strdup (const gchar *str)
{
return new_str;
}
+/**
+ * g_memdup:
+ * @mem: the memory to copy.
+ * @byte_size: the number of bytes to copy.
+ *
+ * Allocates @byte_size bytes of memory, and copies @byte_size bytes into it
+ * from @mem. If @mem is %NULL it returns %NULL.
+ *
+ * Returns: a pointer to the newly-allocated copy of the memory, or %NULL if @mem
+ * is %NULL.
+ */
gpointer
g_memdup (gconstpointer mem,
- guint byte_size)
+ guint byte_size)
{
gpointer new_mem;
* @n: the maximum number of bytes to copy from @str
*
* Duplicates the first @n bytes of a string, returning a newly-allocated
- * buffer @n + 1 bytes long which will always be nul-terminated.
- * If @str is less than @n bytes long the buffer is padded with nuls.
- * If @str is %NULL it returns %NULL.
- * The returned value should be freed when no longer needed.
- *
- * <note><para>
- * To copy a number of characters from a UTF-8 encoded string, use
- * g_utf8_strncpy() instead.
- * </para></note>
- *
- * Returns: a newly-allocated buffer containing the first @n bytes
- * of @str, nul-terminated
+ * buffer @n + 1 bytes long which will always be nul-terminated. If @str
+ * is less than @n bytes long the buffer is padded with nuls. If @str is
+ * %NULL it returns %NULL. The returned value should be freed when no longer
+ * needed.
+ *
+ * To copy a number of characters from a UTF-8 encoded string,
+ * use g_utf8_strncpy() instead.
+ *
+ * Returns: a newly-allocated buffer containing the first @n bytes
+ * of @str, nul-terminated
*/
gchar*
g_strndup (const gchar *str,
- gsize n)
+ gsize n)
{
gchar *new_str;
*
* Creates a new string @length bytes long filled with @fill_char.
* The returned string should be freed when no longer needed.
- *
+ *
* Returns: a newly-allocated string filled the @fill_char
*/
gchar*
-g_strnfill (gsize length,
- gchar fill_char)
+g_strnfill (gsize length,
+ gchar fill_char)
{
gchar *str;
* 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.
+ *
+ * Returns: a pointer to trailing nul byte.
**/
gchar *
g_stpcpy (gchar *dest,
g_return_val_if_fail (src != NULL, NULL);
return stpcpy (dest, src);
#else
- register gchar *d = dest;
- register const gchar *s = src;
+ gchar *d = dest;
+ const gchar *s = src;
g_return_val_if_fail (dest != NULL, NULL);
g_return_val_if_fail (src != NULL, NULL);
#endif
}
+/**
+ * g_strdup_vprintf:
+ * @format: a standard printf() format string, but notice
+ * [string precision pitfalls][string-precision]
+ * @args: the list of parameters to insert into the format string
+ *
+ * Similar to the standard C vsprintf() function but safer, since it
+ * calculates the maximum space required and allocates memory to hold
+ * the result. The returned string should be freed with g_free() when
+ * no longer needed.
+ *
+ * See also g_vasprintf(), which offers the same functionality, but
+ * additionally returns the length of the allocated string.
+ *
+ * Returns: a newly-allocated string holding the result
+ */
gchar*
g_strdup_vprintf (const gchar *format,
- va_list args)
+ va_list args)
{
gchar *string = NULL;
return string;
}
+/**
+ * g_strdup_printf:
+ * @format: a standard printf() format string, but notice
+ * [string precision pitfalls][string-precision]
+ * @...: the parameters to insert into the format string
+ *
+ * Similar to the standard C sprintf() function but safer, since it
+ * calculates the maximum space required and allocates memory to hold
+ * the result. The returned string should be freed with g_free() when no
+ * longer needed.
+ *
+ * Returns: a newly-allocated string holding the result
+ */
gchar*
g_strdup_printf (const gchar *format,
- ...)
+ ...)
{
gchar *buffer;
va_list args;
return buffer;
}
+/**
+ * g_strconcat:
+ * @string1: the first string to add, which must not be %NULL
+ * @...: a %NULL-terminated list of strings to append to the string
+ *
+ * Concatenates all of the given strings into one long string. The
+ * returned string should be freed with g_free() when no longer needed.
+ *
+ * The variable argument list must end with %NULL. If you forget the %NULL,
+ * g_strconcat() will start appending random memory junk to your string.
+ *
+ * Note that this function is usually not the right function to use to
+ * assemble a translated message from pieces, since proper translation
+ * often requires the pieces to be reordered.
+ *
+ * Returns: a newly-allocated string containing all the string arguments
+ */
gchar*
g_strconcat (const gchar *string1, ...)
{
- gsize l;
+ gsize l;
va_list args;
- gchar *s;
- gchar *concat;
+ gchar *s;
+ gchar *concat;
gchar *ptr;
if (!string1)
* @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
+ * This function should seldom 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.
+ *
+ * Returns: the #gdouble value.
**/
gdouble
g_strtod (const gchar *nptr,
- gchar **endptr)
+ gchar **endptr)
{
gchar *fail_pos_1;
gchar *fail_pos_2;
if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
{
if (endptr)
- *endptr = fail_pos_1;
+ *endptr = fail_pos_1;
return val_1;
}
else
{
if (endptr)
- *endptr = fail_pos_2;
+ *endptr = fail_pos_2;
return val_2;
}
}
* @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.
+ * does in the C locale. It does this without actually changing
+ * the current locale, since that would not be thread-safe.
+ * A limitation of the implementation is that this function
+ * will still accept localized versions of infinities and NANs.
*
* This function is typically used when reading configuration
* files or other non-user input that should be locale independent.
* 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.
- **/
+ * Returns: the #gdouble value.
+ */
gdouble
g_ascii_strtod (const gchar *nptr,
- gchar **endptr)
+ gchar **endptr)
{
+#ifdef USE_XLOCALE
+
+ g_return_val_if_fail (nptr != NULL, 0);
+
+ errno = 0;
+
+ return strtod_l (nptr, endptr, get_C_locale ());
+
+#else
+
gchar *fail_pos;
gdouble val;
+#ifndef __BIONIC__
struct lconv *locale_data;
+#endif
const char *decimal_point;
int decimal_point_len;
const char *p, *decimal_point_pos;
fail_pos = NULL;
+#ifndef __BIONIC__
locale_data = localeconv ();
decimal_point = locale_data->decimal_point;
decimal_point_len = strlen (decimal_point);
+#else
+ decimal_point = ".";
+ decimal_point_len = 1;
+#endif
g_assert (decimal_point_len != 0);
-
+
decimal_point_pos = NULL;
end = NULL;
- if (decimal_point[0] != '.' ||
+ if (decimal_point[0] != '.' ||
decimal_point[1] != 0)
{
p = nptr;
/* Skip leading space */
while (g_ascii_isspace (*p))
- 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;
- }
+ 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 if (g_ascii_isdigit (*p) || *p == '.')
- {
- 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;
- }
+ {
+ 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 */
}
/* 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;
strtod_errno = errno;
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);
- }
-
+ {
+ 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 if (end)
{
char *copy;
-
+
copy = g_malloc (end - (char *)nptr + 1);
memcpy (copy, nptr, end - nptr);
*(copy + (end - (char *)nptr)) = 0;
-
+
errno = 0;
val = strtod (copy, &fail_pos);
strtod_errno = errno;
if (fail_pos)
- {
- fail_pos = (char *)nptr + (fail_pos - copy);
- }
-
+ {
+ fail_pos = (char *)nptr + (fail_pos - copy);
+ }
+
g_free (copy);
}
else
errno = strtod_errno;
return val;
+#endif
}
* @d: The #gdouble to convert
*
* Converts a #gdouble to a string, using the '.' as
- * decimal point.
- *
- * This functions generates enough precision that converting
+ * decimal point.
+ *
+ * This function 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.
+ * Returns: The pointer to the buffer with the converted string.
**/
gchar *
g_ascii_dtostr (gchar *buffer,
- gint buf_len,
- gdouble d)
+ gint buf_len,
+ gdouble d)
{
return g_ascii_formatd (buffer, buf_len, "%.17g", d);
}
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
+
/**
* 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.
+ * 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'.
- *
+ * 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.
- **/
+ * Returns: The pointer to the buffer with the converted string.
+ */
gchar *
g_ascii_formatd (gchar *buffer,
- gint buf_len,
- const gchar *format,
- gdouble d)
+ gint buf_len,
+ const gchar *format,
+ gdouble d)
{
+#ifdef USE_XLOCALE
+ locale_t old_locale;
+
+ old_locale = uselocale (get_C_locale ());
+ _g_snprintf (buffer, buf_len, format, d);
+ uselocale (old_locale);
+
+ return buffer;
+#else
+#ifndef __BIONIC__
struct lconv *locale_data;
+#endif
const char *decimal_point;
int decimal_point_len;
gchar *p;
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);
+ format_char == 'f' || format_char == 'F' ||
+ format_char == 'g' || format_char == 'G',
+ NULL);
if (format[0] != '%')
return NULL;
return NULL;
if (!(format_char == 'e' || format_char == 'E' ||
- format_char == 'f' || format_char == 'F' ||
- format_char == 'g' || format_char == 'G'))
+ format_char == 'f' || format_char == 'F' ||
+ format_char == 'g' || format_char == 'G'))
return NULL;
-
_g_snprintf (buffer, buf_len, format, d);
+#ifndef __BIONIC__
locale_data = localeconv ();
decimal_point = locale_data->decimal_point;
decimal_point_len = strlen (decimal_point);
+#else
+ decimal_point = ".";
+ decimal_point_len = 1;
+#endif
g_assert (decimal_point_len != 0);
p = buffer;
while (g_ascii_isspace (*p))
- p++;
+ p++;
if (*p == '+' || *p == '-')
- p++;
+ p++;
while (isdigit ((guchar)*p))
- p++;
+ p++;
if (strncmp (p, decimal_point, decimal_point_len) == 0)
- {
- *p = '.';
- p++;
- if (decimal_point_len > 1)
+ {
+ *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;
- }
- }
+ rest_len = strlen (p + (decimal_point_len-1));
+ memmove (p, p + (decimal_point_len-1), rest_len);
+ p[rest_len] = 0;
+ }
+ }
}
-
+
return buffer;
+#endif
}
+#pragma GCC diagnostic pop
+
+#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))
+
+#ifndef USE_XLOCALE
static guint64
g_parse_long_long (const gchar *nptr,
- gchar **endptr,
- guint base,
- gboolean *negative)
+ const gchar **endptr,
+ guint base,
+ gboolean *negative)
{
/* 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 overflow;
guint64 cutoff;
guint64 cutlim;
guint64 ui64;
const gchar *s, *save;
guchar c;
-
+
g_return_val_if_fail (nptr != NULL, 0);
-
+
*negative = FALSE;
if (base == 1 || base > 36)
{
errno = EINVAL;
if (endptr)
- *endptr = nptr;
+ *endptr = nptr;
return 0;
}
-
+
save = s = nptr;
-
+
/* Skip white space. */
while (ISSPACE (*s))
++s;
if (G_UNLIKELY (!*s))
goto noconv;
-
+
/* Check for a sign. */
if (*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;
- }
+ {
+ s += 2;
+ base = 16;
+ }
else if (base == 0)
- base = 8;
+ 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';
+ c -= '0';
else if (ISALPHA (c))
- c = TOUPPER (c) - 'A' + 10;
+ c = TOUPPER (c) - 'A' + 10;
else
- break;
+ break;
if (c >= base)
- break;
+ break;
/* Check for overflow. */
if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
- overflow = TRUE;
+ overflow = TRUE;
else
- {
- ui64 *= base;
- ui64 += c;
- }
+ {
+ 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;
-
+ *endptr = s;
+
if (G_UNLIKELY (overflow))
{
errno = ERANGE;
}
return 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
if (endptr)
{
if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
- && save[-2] == '0')
- *endptr = (gchar*) &save[-1];
+ && save[-2] == '0')
+ *endptr = &save[-1];
else
- /* There was no number to convert. */
- *endptr = (gchar*) nptr;
+ /* There was no number to convert. */
+ *endptr = nptr;
}
return 0;
}
+#endif /* !USE_XLOCALE */
/**
* g_ascii_strtoull:
* locale-sensitive system strtoull() function.
*
* If the correct value would cause overflow, %G_MAXUINT64
- * is returned, and %ERANGE is stored in %errno. If the base is
- * outside the valid range, zero is returned, and %EINVAL is stored
- * in %errno. If the string conversion fails, zero is returned, and
- * @endptr returns @nptr (if @endptr is non-%NULL).
+ * is returned, and `ERANGE` is stored in `errno`.
+ * If the base is outside the valid range, zero is returned, and
+ * `EINVAL` is stored in `errno`.
+ * If the string conversion fails, zero is returned, and @endptr returns
+ * @nptr (if @endptr is non-%NULL).
*
- * Return value: the #guint64 value or zero on error.
+ * Returns: the #guint64 value or zero on error.
*
* Since: 2.2
- **/
+ */
guint64
g_ascii_strtoull (const gchar *nptr,
- gchar **endptr,
- guint base)
+ gchar **endptr,
+ guint base)
{
+#ifdef USE_XLOCALE
+ return strtoull_l (nptr, endptr, base, get_C_locale ());
+#else
gboolean negative;
guint64 result;
- result = g_parse_long_long (nptr, endptr, base, &negative);
+ result = g_parse_long_long (nptr, (const gchar **) endptr, base, &negative);
/* Return the result of the appropriate sign. */
return negative ? -result : result;
+#endif
}
/**
* locale-sensitive system strtoll() function.
*
* If the correct value would cause overflow, %G_MAXINT64 or %G_MININT64
- * is returned, and %ERANGE is stored in %errno. If the base is
- * outside the valid range, zero is returned, and %EINVAL is stored
- * in %errno. If the string conversion fails, zero is returned, and
- * @endptr returns @nptr (if @endptr is non-%NULL).
+ * is returned, and `ERANGE` is stored in `errno`.
+ * If the base is outside the valid range, zero is returned, and
+ * `EINVAL` is stored in `errno`. If the
+ * string conversion fails, zero is returned, and @endptr returns @nptr
+ * (if @endptr is non-%NULL).
*
- * Return value: the #gint64 value or zero on error.
+ * Returns: the #gint64 value or zero on error.
*
* Since: 2.12
- **/
-gint64
+ */
+gint64
g_ascii_strtoll (const gchar *nptr,
- gchar **endptr,
- guint base)
+ gchar **endptr,
+ guint base)
{
+#ifdef USE_XLOCALE
+ return strtoll_l (nptr, endptr, base, get_C_locale ());
+#else
gboolean negative;
guint64 result;
- result = g_parse_long_long (nptr, endptr, base, &negative);
+ result = g_parse_long_long (nptr, (const gchar **) endptr, base, &negative);
if (negative && result > (guint64) G_MININT64)
{
return - (gint64) result;
else
return (gint64) result;
+#endif
}
-G_CONST_RETURN gchar*
+/**
+ * g_strerror:
+ * @errnum: the system error number. See the standard C %errno
+ * documentation
+ *
+ * Returns a string corresponding to the given error code, e.g.
+ * "no such process". You should use this function in preference to
+ * strerror(), because it returns a string in UTF-8 encoding, and since
+ * not all platforms support the strerror() function.
+ *
+ * Returns: a UTF-8 string describing the error code. If the error code
+ * is unknown, it returns "unknown error (<code>)".
+ */
+const gchar *
g_strerror (gint errnum)
{
- static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
- char *msg;
- int saved_errno = errno;
+ gchar *msg;
+ gchar *tofree = NULL;
+ const gchar *ret;
+ gint saved_errno = errno;
-#ifdef HAVE_STRERROR
- 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)
- {
-#ifdef E2BIG
- case E2BIG: return "argument list too long";
-#endif
-#ifdef EACCES
- case EACCES: return "permission denied";
-#endif
-#ifdef EADDRINUSE
- case EADDRINUSE: return "address already in use";
-#endif
-#ifdef EADDRNOTAVAIL
- case EADDRNOTAVAIL: return "can't assign requested address";
-#endif
-#ifdef EADV
- case EADV: return "advertise error";
-#endif
-#ifdef EAFNOSUPPORT
- case EAFNOSUPPORT: return "address family not supported by protocol family";
-#endif
-#ifdef EAGAIN
- case EAGAIN: return "try again";
-#endif
-#ifdef EALIGN
- case EALIGN: return "EALIGN";
-#endif
-#ifdef EALREADY
- case EALREADY: return "operation already in progress";
-#endif
-#ifdef EBADE
- case EBADE: return "bad exchange descriptor";
-#endif
-#ifdef EBADF
- case EBADF: return "bad file number";
-#endif
-#ifdef EBADFD
- case EBADFD: return "file descriptor in bad state";
-#endif
-#ifdef EBADMSG
- case EBADMSG: return "not a data message";
-#endif
-#ifdef EBADR
- case EBADR: return "bad request descriptor";
-#endif
-#ifdef EBADRPC
- case EBADRPC: return "RPC structure is bad";
-#endif
-#ifdef EBADRQC
- case EBADRQC: return "bad request code";
-#endif
-#ifdef EBADSLT
- case EBADSLT: return "invalid slot";
-#endif
-#ifdef EBFONT
- case EBFONT: return "bad font file format";
-#endif
-#ifdef EBUSY
- case EBUSY: return "mount device busy";
-#endif
-#ifdef ECHILD
- case ECHILD: return "no children";
-#endif
-#ifdef ECHRNG
- case ECHRNG: return "channel number out of range";
-#endif
-#ifdef ECOMM
- case ECOMM: return "communication error on send";
-#endif
-#ifdef ECONNABORTED
- case ECONNABORTED: return "software caused connection abort";
-#endif
-#ifdef ECONNREFUSED
- case ECONNREFUSED: return "connection refused";
-#endif
-#ifdef ECONNRESET
- case ECONNRESET: return "connection reset by peer";
-#endif
-#if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK))
- case EDEADLK: return "resource deadlock avoided";
-#endif
-#ifdef EDEADLOCK
- case EDEADLOCK: return "resource deadlock avoided";
-#endif
-#ifdef EDESTADDRREQ
- case EDESTADDRREQ: return "destination address required";
-#endif
-#ifdef EDIRTY
- case EDIRTY: return "mounting a dirty fs w/o force";
-#endif
-#ifdef EDOM
- case EDOM: return "math argument out of range";
-#endif
-#ifdef EDOTDOT
- case EDOTDOT: return "cross mount point";
-#endif
-#ifdef EDQUOT
- case EDQUOT: return "disk quota exceeded";
-#endif
-#ifdef EDUPPKG
- case EDUPPKG: return "duplicate package name";
-#endif
-#ifdef EEXIST
- case EEXIST: return "file already exists";
-#endif
-#ifdef EFAULT
- case EFAULT: return "bad address in system call argument";
-#endif
-#ifdef EFBIG
- case EFBIG: return "file too large";
-#endif
-#ifdef EHOSTDOWN
- case EHOSTDOWN: return "host is down";
-#endif
-#ifdef EHOSTUNREACH
- case EHOSTUNREACH: return "host is unreachable";
-#endif
-#ifdef EIDRM
- case EIDRM: return "identifier removed";
-#endif
-#ifdef EINIT
- case EINIT: return "initialization error";
-#endif
-#ifdef EINPROGRESS
- case EINPROGRESS: return "operation now in progress";
-#endif
-#ifdef EINTR
- case EINTR: return "interrupted system call";
-#endif
-#ifdef EINVAL
- case EINVAL: return "invalid argument";
-#endif
-#ifdef EIO
- case EIO: return "I/O error";
-#endif
-#ifdef EISCONN
- case EISCONN: return "socket is already connected";
-#endif
-#ifdef EISDIR
- case EISDIR: return "is a directory";
-#endif
-#ifdef EISNAME
- case EISNAM: return "is a name file";
-#endif
-#ifdef ELBIN
- case ELBIN: return "ELBIN";
-#endif
-#ifdef EL2HLT
- case EL2HLT: return "level 2 halted";
-#endif
-#ifdef EL2NSYNC
- case EL2NSYNC: return "level 2 not synchronized";
-#endif
-#ifdef EL3HLT
- case EL3HLT: return "level 3 halted";
-#endif
-#ifdef EL3RST
- case EL3RST: return "level 3 reset";
-#endif
-#ifdef ELIBACC
- case ELIBACC: return "can not access a needed shared library";
-#endif
-#ifdef ELIBBAD
- case ELIBBAD: return "accessing a corrupted shared library";
-#endif
-#ifdef ELIBEXEC
- case ELIBEXEC: return "can not exec a shared library directly";
-#endif
-#ifdef ELIBMAX
- case ELIBMAX: return "attempting to link in more shared libraries than system limit";
-#endif
-#ifdef ELIBSCN
- case ELIBSCN: return ".lib section in a.out corrupted";
-#endif
-#ifdef ELNRNG
- case ELNRNG: return "link number out of range";
-#endif
-#ifdef ELOOP
- case ELOOP: return "too many levels of symbolic links";
-#endif
-#ifdef EMFILE
- case EMFILE: return "too many open files";
-#endif
-#ifdef EMLINK
- case EMLINK: return "too many links";
-#endif
-#ifdef EMSGSIZE
- case EMSGSIZE: return "message too long";
-#endif
-#ifdef EMULTIHOP
- case EMULTIHOP: return "multihop attempted";
-#endif
-#ifdef ENAMETOOLONG
- case ENAMETOOLONG: return "file name too long";
-#endif
-#ifdef ENAVAIL
- case ENAVAIL: return "not available";
-#endif
-#ifdef ENET
- case ENET: return "ENET";
-#endif
-#ifdef ENETDOWN
- case ENETDOWN: return "network is down";
-#endif
-#ifdef ENETRESET
- case ENETRESET: return "network dropped connection on reset";
-#endif
-#ifdef ENETUNREACH
- case ENETUNREACH: return "network is unreachable";
-#endif
-#ifdef ENFILE
- case ENFILE: return "file table overflow";
-#endif
-#ifdef ENOANO
- case ENOANO: return "anode table overflow";
-#endif
-#if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR))
- case ENOBUFS: return "no buffer space available";
-#endif
-#ifdef ENOCSI
- case ENOCSI: return "no CSI structure available";
-#endif
-#ifdef ENODATA
- case ENODATA: return "no data available";
-#endif
-#ifdef ENODEV
- case ENODEV: return "no such device";
-#endif
-#ifdef ENOENT
- case ENOENT: return "no such file or directory";
-#endif
-#ifdef ENOEXEC
- case ENOEXEC: return "exec format error";
-#endif
-#ifdef ENOLCK
- case ENOLCK: return "no locks available";
-#endif
-#ifdef ENOLINK
- case ENOLINK: return "link has be severed";
-#endif
-#ifdef ENOMEM
- case ENOMEM: return "not enough memory";
-#endif
-#ifdef ENOMSG
- case ENOMSG: return "no message of desired type";
-#endif
-#ifdef ENONET
- case ENONET: return "machine is not on the network";
-#endif
-#ifdef ENOPKG
- case ENOPKG: return "package not installed";
-#endif
-#ifdef ENOPROTOOPT
- case ENOPROTOOPT: return "bad proocol option";
-#endif
-#ifdef ENOSPC
- case ENOSPC: return "no space left on device";
-#endif
-#ifdef ENOSR
- case ENOSR: return "out of stream resources";
-#endif
-#ifdef ENOSTR
- case ENOSTR: return "not a stream device";
-#endif
-#ifdef ENOSYM
- case ENOSYM: return "unresolved symbol name";
-#endif
-#ifdef ENOSYS
- case ENOSYS: return "function not implemented";
-#endif
-#ifdef ENOTBLK
- case ENOTBLK: return "block device required";
-#endif
-#ifdef ENOTCONN
- case ENOTCONN: return "socket is not connected";
-#endif
-#ifdef ENOTDIR
- case ENOTDIR: return "not a directory";
-#endif
-#ifdef ENOTEMPTY
- case ENOTEMPTY: return "directory not empty";
-#endif
-#ifdef ENOTNAM
- case ENOTNAM: return "not a name file";
-#endif
-#ifdef ENOTSOCK
- case ENOTSOCK: return "socket operation on non-socket";
-#endif
-#ifdef ENOTTY
- case ENOTTY: return "inappropriate device for ioctl";
-#endif
-#ifdef ENOTUNIQ
- case ENOTUNIQ: return "name not unique on network";
-#endif
-#ifdef ENXIO
- case ENXIO: return "no such device or address";
-#endif
-#ifdef EOPNOTSUPP
- case EOPNOTSUPP: return "operation not supported on socket";
-#endif
-#ifdef EPERM
- case EPERM: return "not owner";
-#endif
-#ifdef EPFNOSUPPORT
- case EPFNOSUPPORT: return "protocol family not supported";
-#endif
-#ifdef EPIPE
- case EPIPE: return "broken pipe";
-#endif
-#ifdef EPROCLIM
- case EPROCLIM: return "too many processes";
-#endif
-#ifdef EPROCUNAVAIL
- case EPROCUNAVAIL: return "bad procedure for program";
-#endif
-#ifdef EPROGMISMATCH
- case EPROGMISMATCH: return "program version wrong";
-#endif
-#ifdef EPROGUNAVAIL
- case EPROGUNAVAIL: return "RPC program not available";
-#endif
-#ifdef EPROTO
- case EPROTO: return "protocol error";
-#endif
-#ifdef EPROTONOSUPPORT
- case EPROTONOSUPPORT: return "protocol not suppored";
-#endif
-#ifdef EPROTOTYPE
- case EPROTOTYPE: return "protocol wrong type for socket";
-#endif
-#ifdef ERANGE
- case ERANGE: return "math result unrepresentable";
-#endif
-#if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED))
- case EREFUSED: return "EREFUSED";
-#endif
-#ifdef EREMCHG
- case EREMCHG: return "remote address changed";
-#endif
-#ifdef EREMDEV
- case EREMDEV: return "remote device";
-#endif
-#ifdef EREMOTE
- case EREMOTE: return "pathname hit remote file system";
-#endif
-#ifdef EREMOTEIO
- case EREMOTEIO: return "remote i/o error";
-#endif
-#ifdef EREMOTERELEASE
- case EREMOTERELEASE: return "EREMOTERELEASE";
-#endif
-#ifdef EROFS
- case EROFS: return "read-only file system";
-#endif
-#ifdef ERPCMISMATCH
- case ERPCMISMATCH: return "RPC version is wrong";
-#endif
-#ifdef ERREMOTE
- case ERREMOTE: return "object is remote";
-#endif
-#ifdef ESHUTDOWN
- case ESHUTDOWN: return "can't send afer socket shutdown";
-#endif
-#ifdef ESOCKTNOSUPPORT
- case ESOCKTNOSUPPORT: return "socket type not supported";
-#endif
-#ifdef ESPIPE
- case ESPIPE: return "invalid seek";
-#endif
-#ifdef ESRCH
- case ESRCH: return "no such process";
-#endif
-#ifdef ESRMNT
- case ESRMNT: return "srmount error";
-#endif
-#ifdef ESTALE
- case ESTALE: return "stale remote file handle";
-#endif
-#ifdef ESUCCESS
- case ESUCCESS: return "Error 0";
-#endif
-#ifdef ETIME
- case ETIME: return "timer expired";
-#endif
-#ifdef ETIMEDOUT
- case ETIMEDOUT: return "connection timed out";
-#endif
-#ifdef ETOOMANYREFS
- case ETOOMANYREFS: return "too many references: can't splice";
-#endif
-#ifdef ETXTBSY
- case ETXTBSY: return "text file or pseudo-device busy";
-#endif
-#ifdef EUCLEAN
- case EUCLEAN: return "structure needs cleaning";
-#endif
-#ifdef EUNATCH
- case EUNATCH: return "protocol driver not attached";
-#endif
-#ifdef EUSERS
- case EUSERS: return "too many users";
-#endif
-#ifdef EVERSION
- case EVERSION: return "version mismatch";
-#endif
-#if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN))
- case EWOULDBLOCK: return "operation would block";
-#endif
-#ifdef EXDEV
- case EXDEV: return "cross-domain link";
-#endif
-#ifdef EXFULL
- case EXFULL: return "message tables full";
-#endif
- }
-#else /* NO_SYS_ERRLIST */
- extern int sys_nerr;
- extern char *sys_errlist[];
-
- if ((errnum > 0) && (errnum <= sys_nerr))
- return sys_errlist [errnum];
-#endif /* NO_SYS_ERRLIST */
-
- msg = g_static_private_get (&msg_private);
- if (!msg)
- {
- msg = g_new (gchar, 64);
- g_static_private_set (&msg_private, msg, g_free);
- }
-
- _g_sprintf (msg, "unknown error (%d)", errnum);
+ msg = strerror (errnum);
+ if (!g_get_charset (NULL))
+ msg = tofree = g_locale_to_utf8 (msg, -1, NULL, NULL, NULL);
+ ret = g_intern_string (msg);
+ g_free (tofree);
errno = saved_errno;
- return msg;
+ return ret;
}
-G_CONST_RETURN gchar*
+/**
+ * g_strsignal:
+ * @signum: the signal number. See the `signal` documentation
+ *
+ * Returns a string describing the given signal, e.g. "Segmentation fault".
+ * You should use this function in preference to strsignal(), because it
+ * returns a string in UTF-8 encoding, and since not all platforms support
+ * the strsignal() function.
+ *
+ * Returns: a UTF-8 string describing the signal. If the signal is unknown,
+ * it returns "unknown signal (<signum>)".
+ */
+const gchar *
g_strsignal (gint signum)
{
- static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
- char *msg;
+ gchar *msg;
+ gchar *tofree;
+ const gchar *ret;
-#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);
-#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)
- {
-#ifdef SIGHUP
- case SIGHUP: return "Hangup";
-#endif
-#ifdef SIGINT
- case SIGINT: return "Interrupt";
-#endif
-#ifdef SIGQUIT
- case SIGQUIT: return "Quit";
-#endif
-#ifdef SIGILL
- case SIGILL: return "Illegal instruction";
-#endif
-#ifdef SIGTRAP
- case SIGTRAP: return "Trace/breakpoint trap";
-#endif
-#ifdef SIGABRT
- case SIGABRT: return "IOT trap/Abort";
-#endif
-#ifdef SIGBUS
- case SIGBUS: return "Bus error";
-#endif
-#ifdef SIGFPE
- case SIGFPE: return "Floating point exception";
-#endif
-#ifdef SIGKILL
- case SIGKILL: return "Killed";
-#endif
-#ifdef SIGUSR1
- case SIGUSR1: return "User defined signal 1";
-#endif
-#ifdef SIGSEGV
- case SIGSEGV: return "Segmentation fault";
-#endif
-#ifdef SIGUSR2
- case SIGUSR2: return "User defined signal 2";
-#endif
-#ifdef SIGPIPE
- case SIGPIPE: return "Broken pipe";
-#endif
-#ifdef SIGALRM
- case SIGALRM: return "Alarm clock";
-#endif
-#ifdef SIGTERM
- case SIGTERM: return "Terminated";
-#endif
-#ifdef SIGSTKFLT
- case SIGSTKFLT: return "Stack fault";
-#endif
-#ifdef SIGCHLD
- case SIGCHLD: return "Child exited";
-#endif
-#ifdef SIGCONT
- case SIGCONT: return "Continued";
-#endif
-#ifdef SIGSTOP
- case SIGSTOP: return "Stopped (signal)";
-#endif
-#ifdef SIGTSTP
- case SIGTSTP: return "Stopped";
-#endif
-#ifdef SIGTTIN
- case SIGTTIN: return "Stopped (tty input)";
-#endif
-#ifdef SIGTTOU
- case SIGTTOU: return "Stopped (tty output)";
-#endif
-#ifdef SIGURG
- case SIGURG: return "Urgent condition";
-#endif
-#ifdef SIGXCPU
- case SIGXCPU: return "CPU time limit exceeded";
-#endif
-#ifdef SIGXFSZ
- case SIGXFSZ: return "File size limit exceeded";
-#endif
-#ifdef SIGVTALRM
- case SIGVTALRM: return "Virtual time alarm";
-#endif
-#ifdef SIGPROF
- case SIGPROF: return "Profile signal";
-#endif
-#ifdef SIGWINCH
- case SIGWINCH: return "Window size changed";
-#endif
-#ifdef SIGIO
- case SIGIO: return "Possible I/O";
-#endif
-#ifdef SIGPWR
- case SIGPWR: return "Power failure";
-#endif
-#ifdef SIGUNUSED
- case SIGUNUSED: return "Unused signal";
-#endif
- }
-#else /* NO_SYS_SIGLIST */
+ msg = tofree = NULL;
-#ifdef NO_SYS_SIGLIST_DECL
- extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/
+#ifdef HAVE_STRSIGNAL
+ msg = strsignal (signum);
+ if (!g_get_charset (NULL))
+ msg = tofree = g_locale_to_utf8 (msg, -1, NULL, NULL, NULL);
#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)
- {
- msg = g_new (gchar, 64);
- g_static_private_set (&msg_private, msg, g_free);
- }
+ msg = tofree = g_strdup_printf ("unknown signal (%d)", signum);
+ ret = g_intern_string (msg);
+ g_free (tofree);
- _g_sprintf (msg, "unknown signal (%d)", signum);
-
- return msg;
+ return ret;
}
/* 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
+ * See http://www.openbsd.org/cgi-bin/man.cgi?query=strlcpy
* for more information.
*/
/* Use the native ones, if available; they might be implemented in assembly */
gsize
g_strlcpy (gchar *dest,
- const gchar *src,
- gsize dest_size)
+ const gchar *src,
+ gsize dest_size)
{
g_return_val_if_fail (dest != NULL, 0);
g_return_val_if_fail (src != NULL, 0);
-
+
return strlcpy (dest, src, dest_size);
}
gsize
g_strlcat (gchar *dest,
- const gchar *src,
- gsize dest_size)
+ 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);
}
#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.
+/**
+ * g_strlcpy:
+ * @dest: destination buffer
+ * @src: source buffer
+ * @dest_size: length of @dest in bytes
+ *
+ * Portability wrapper that calls strlcpy() on systems which have it,
+ * and emulates strlcpy() otherwise. Copies @src to @dest; @dest is
+ * guaranteed to be nul-terminated; @src must be nul-terminated;
+ * @dest_size is the buffer size, not the number of bytes to copy.
+ *
+ * At most @dest_size - 1 characters will be copied. Always nul-terminates
+ * (unless @dest_size is 0). This function does not allocate memory. Unlike
+ * strncpy(), this function doesn't pad @dest (so it's often faster). It
+ * returns the size of the attempted result, strlen (src), so if
+ * @retval >= @dest_size, truncation occurred.
+ *
+ * Caveat: strlcpy() is supposedly more secure than strcpy() or strncpy(),
+ * but if you really want to avoid screwups, g_strdup() is an even better
+ * idea.
+ *
+ * Returns: length of @src
*/
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;
-
+ gchar *d = dest;
+ const gchar *s = src;
+ 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;
+ 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;
+ *d = 0;
while (*s++)
- ;
+ ;
}
-
+
return s - src - 1; /* count does not include NUL */
}
-/* 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.
+/**
+ * g_strlcat:
+ * @dest: destination buffer, already containing one nul-terminated string
+ * @src: source buffer
+ * @dest_size: length of @dest buffer in bytes (not length of existing string
+ * inside @dest)
+ *
+ * Portability wrapper that calls strlcat() on systems which have it,
+ * and emulates it otherwise. Appends nul-terminated @src string to @dest,
+ * guaranteeing nul-termination for @dest. The total size of @dest won't
+ * exceed @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. It always nul-terminates (unless
+ * @dest_size == 0 or there were no nul characters in the @dest_size
+ * characters of dest to start with).
+ *
+ * Caveat: this is supposedly a more secure alternative to strcat() or
+ * strncat(), but for real security g_strconcat() is harder to mess up.
+ *
+ * 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;
+ gchar *d = dest;
+ const gchar *s = src;
+ 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)
- {
- *d++ = *s;
- bytes_left--;
- }
+ {
+ *d++ = *s;
+ bytes_left--;
+ }
s++;
}
*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.
- *
+ * @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.)
- **/
+ *
+ * Returns: 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)
+ gssize len)
{
gchar *result, *s;
-
+
g_return_val_if_fail (str != NULL, NULL);
if (len < 0)
result = g_strndup (str, len);
for (s = result; *s; s++)
*s = g_ascii_tolower (*s);
-
+
return result;
}
/**
* g_ascii_strup:
- * @str: a string.
- * @len: length of @str in bytes, or -1 if @str is nul-terminated.
- *
+ * @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.)
- **/
+ *
+ * Returns: 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)
+ gssize len)
{
gchar *result, *s;
}
/**
+ * g_str_is_ascii:
+ * @str: a string
+ *
+ * Determines if a string is pure ASCII. A string is pure ASCII if it
+ * contains no bytes with the high bit set.
+ *
+ * Returns: %TRUE if @str is ASCII
+ *
+ * Since: 2.40
+ */
+gboolean
+g_str_is_ascii (const gchar *str)
+{
+ gint i;
+
+ for (i = 0; str[i]; i++)
+ if (str[i] & 0x80)
+ return FALSE;
+
+ return TRUE;
+}
+
+/**
* g_strdown:
* @string: the string to convert.
- *
- * Converts a string to lower case.
- *
- * Return value: the string
*
- * Deprecated:2.2: This function is totally broken for the reasons discussed
- * in the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
+ * Converts a string to lower case.
+ *
+ * Returns: the string
+ *
+ * Deprecated:2.2: 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;
-
+ guchar *s;
+
g_return_val_if_fail (string != NULL, NULL);
-
+
s = (guchar *) string;
-
+
while (*s)
{
if (isupper (*s))
- *s = tolower (*s);
+ *s = tolower (*s);
s++;
}
-
+
return (gchar *) string;
}
/**
* g_strup:
- * @string: the string to convert.
- *
- * Converts a string to upper case.
- *
- * Return value: the string
+ * @string: the string to convert
*
- * Deprecated:2.2: This function is totally broken for the reasons discussed
- * in the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
- **/
+ * Converts a string to upper case.
+ *
+ * Returns: the string
+ *
+ * Deprecated:2.2: 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 guchar *s;
+ guchar *s;
g_return_val_if_fail (string != NULL, NULL);
while (*s)
{
if (islower (*s))
- *s = toupper (*s);
+ *s = toupper (*s);
s++;
}
return (gchar *) string;
}
+/**
+ * g_strreverse:
+ * @string: the string to reverse
+ *
+ * Reverses all of the bytes in a string. For example,
+ * `g_strreverse ("abcdef")` will result in "fedcba".
+ *
+ * Note that g_strreverse() doesn't work on UTF-8 strings
+ * containing multibyte characters. For that purpose, use
+ * g_utf8_strreverse().
+ *
+ * Returns: the same pointer passed in as @string
+ */
gchar*
g_strreverse (gchar *string)
{
if (*string)
{
- register gchar *h, *t;
+ gchar *h, *t;
h = string;
t = string + strlen (string) - 1;
while (h < t)
- {
- register gchar c;
-
- c = *h;
- *h = *t;
- h++;
- *t = c;
- t--;
- }
+ {
+ gchar c;
+
+ c = *h;
+ *h = *t;
+ h++;
+ *t = c;
+ t--;
+ }
}
return string;
/**
* g_ascii_tolower:
- * @c: any character.
- *
+ * @c: any character
+ *
* Convert a character to ASCII lower case.
*
* Unlike the standard C library tolower() function, this only
* 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.
- **/
+ *
+ * Returns: 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)
{
/**
* g_ascii_toupper:
- * @c: any character.
- *
+ * @c: any character
+ *
* Convert a character to ASCII upper case.
*
* Unlike the standard C library toupper() function, this only
* 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.
- **/
+ *
+ * Returns: 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)
{
/**
* g_ascii_digit_value:
- * @c: an ASCII character.
+ * @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.
+ * 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.
- **/
+ * Returns: If @c is a decimal digit (according to g_ascii_isdigit()),
+ * its numeric value. Otherwise, -1.
+ */
int
g_ascii_digit_value (gchar c)
{
* 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.
- **/
+ * Returns: If @c is a hex digit (according to g_ascii_isxdigit()),
+ * its numeric value. Otherwise, -1.
+ */
int
g_ascii_xdigit_value (gchar c)
{
/**
* g_ascii_strcasecmp:
- * @s1: string to compare with @s2.
- * @s2: string to compare with @s1.
- *
+ * @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
* characters include all ASCII letters. If you compare two CP932
* strings using this function, you will get false matches.
*
- * Return value: 0 if the strings match, a negative value if @s1 < @s2,
- * or a positive value if @s1 > @s2.
- **/
+ * Both @s1 and @s2 must be non-%NULL.
+ *
+ * Returns: 0 if the strings match, a negative value if @s1 < @s2,
+ * or a positive value if @s1 > @s2.
+ */
gint
g_ascii_strcasecmp (const gchar *s1,
- const gchar *s2)
+ const gchar *s2)
{
gint c1, c2;
c1 = (gint)(guchar) TOLOWER (*s1);
c2 = (gint)(guchar) TOLOWER (*s2);
if (c1 != c2)
- return (c1 - c2);
+ return (c1 - c2);
s1++; s2++;
}
/**
* g_ascii_strncasecmp:
- * @s1: string to compare with @s2.
- * @s2: string to compare with @s1.
- * @n: number of characters to compare.
- *
+ * @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.
- *
+ *
* The same warning as in g_ascii_strcasecmp() applies: Use this
* function only on strings known to be in encodings where bytes
* corresponding to ASCII letters always represent themselves.
*
- * Return value: 0 if the strings match, a negative value if @s1 < @s2,
- * or a positive value if @s1 > @s2.
- **/
+ * Returns: 0 if the strings match, a negative value if @s1 < @s2,
+ * or a positive value if @s1 > @s2.
+ */
gint
g_ascii_strncasecmp (const gchar *s1,
- const gchar *s2,
- gsize n)
+ const gchar *s2,
+ gsize n)
{
gint c1, c2;
c1 = (gint)(guchar) TOLOWER (*s1);
c2 = (gint)(guchar) TOLOWER (*s2);
if (c1 != c2)
- return (c1 - c2);
+ return (c1 - c2);
s1++; s2++;
}
/**
* g_strcasecmp:
- * @s1: a string.
- * @s2: a string to compare with @s1.
- *
+ * @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.
+ * Returns: 0 if the strings match, a negative value if @s1 < @s2,
+ * or a positive value if @s1 > @s2.
*
- * Deprecated:2.2: See g_strncasecmp() for a discussion of why this function
- * is deprecated and how to replace it.
- **/
+ * Deprecated:2.2: 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)
+ const gchar *s2)
{
#ifdef HAVE_STRCASECMP
g_return_val_if_fail (s1 != NULL, 0);
c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
if (c1 != c2)
- return (c1 - c2);
+ return (c1 - c2);
s1++; s2++;
}
/**
* g_strncasecmp:
- * @s1: a string.
- * @s2: a string to compare with @s1.
- * @n: the maximum number of characters to compare.
- *
+ * @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:2.2: 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.
- **/
+ * strncasecmp() function on platforms which support it. It is similar
+ * to g_strcasecmp() except it only compares the first @n characters of
+ * the strings.
+ *
+ * Returns: 0 if the strings match, a negative value if @s1 < @s2,
+ * or a positive value if @s1 > @s2.
+ *
+ * Deprecated:2.2: 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 internationalization
+ * 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 is 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 techniques: g_ascii_strncasecmp(),
+ * which only works on ASCII and is not locale-sensitive, and
+ * g_utf8_casefold() followed by strcmp() on the resulting strings,
+ * which is good for case-insensitive sorting of UTF-8.
+ */
gint
g_strncasecmp (const gchar *s1,
- const gchar *s2,
- guint n)
+ const gchar *s2,
+ guint n)
{
#ifdef HAVE_STRNCASECMP
return strncasecmp (s1, s2, n);
c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1;
c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2;
if (c1 != c2)
- return (c1 - c2);
+ return (c1 - c2);
s1++; s2++;
}
#endif
}
-gchar*
-g_strdelimit (gchar *string,
- const gchar *delimiters,
- gchar new_delim)
+/**
+ * g_strdelimit:
+ * @string: the string to convert
+ * @delimiters: (allow-none): a string containing the current delimiters,
+ * or %NULL to use the standard delimiters defined in #G_STR_DELIMITERS
+ * @new_delimiter: the new delimiter character
+ *
+ * Converts any delimiter characters in @string to @new_delimiter.
+ * Any characters in @string which are found in @delimiters are
+ * changed to the @new_delimiter character. Modifies @string in place,
+ * and returns @string itself, not a copy. The return value is to
+ * allow nesting such as
+ * |[<!-- language="C" -->
+ * g_ascii_strup (g_strdelimit (str, "abc", '?'))
+ * ]|
+ *
+ * Returns: @string
+ */
+gchar *
+g_strdelimit (gchar *string,
+ const gchar *delimiters,
+ gchar new_delim)
{
- register gchar *c;
+ gchar *c;
g_return_val_if_fail (string != NULL, NULL);
for (c = string; *c; c++)
{
if (strchr (delimiters, *c))
- *c = new_delim;
+ *c = new_delim;
}
return string;
}
-gchar*
+/**
+ * g_strcanon:
+ * @string: a nul-terminated array of bytes
+ * @valid_chars: bytes permitted in @string
+ * @substitutor: replacement character for disallowed bytes
+ *
+ * For each character in @string, if the character is not in @valid_chars,
+ * replaces the character with @substitutor. Modifies @string in place,
+ * and return @string itself, not a copy. The return value is to allow
+ * nesting such as
+ * |[<!-- language="C" -->
+ * g_ascii_strup (g_strcanon (str, "abc", '?'))
+ * ]|
+ *
+ * Returns: @string
+ */
+gchar *
g_strcanon (gchar *string,
- const gchar *valid_chars,
- gchar substitutor)
+ const gchar *valid_chars,
+ gchar substitutor)
{
- register gchar *c;
+ gchar *c;
g_return_val_if_fail (string != NULL, NULL);
g_return_val_if_fail (valid_chars != NULL, NULL);
for (c = string; *c; c++)
{
if (!strchr (valid_chars, *c))
- *c = substitutor;
+ *c = substitutor;
}
return string;
}
-gchar*
+/**
+ * g_strcompress:
+ * @source: a string to compress
+ *
+ * Replaces all escaped characters with their one byte equivalent.
+ *
+ * This function does the reverse conversion of g_strescape().
+ *
+ * Returns: a newly-allocated copy of @source with all escaped
+ * character compressed
+ */
+gchar *
g_strcompress (const gchar *source)
{
const gchar *p = source, *octal;
- gchar *dest = g_malloc (strlen (source) + 1);
- gchar *q = dest;
-
+ gchar *dest;
+ gchar *q;
+
+ g_return_val_if_fail (source != NULL, NULL);
+
+ dest = g_malloc (strlen (source) + 1);
+ q = dest;
+
while (*p)
{
if (*p == '\\')
- {
- p++;
- switch (*p)
- {
- case '\0':
- g_warning ("g_strcompress: trailing \\");
- goto out;
- 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;
- }
- }
+ {
+ p++;
+ switch (*p)
+ {
+ case '\0':
+ g_warning ("g_strcompress: trailing \\");
+ goto out;
+ 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;
+ case 'v':
+ *q++ = '\v';
+ break;
+ default: /* Also handles \" and \\ */
+ *q++ = *p;
+ break;
+ }
+ }
else
- *q++ = *p;
+ *q++ = *p;
p++;
}
out:
*q = 0;
-
+
return dest;
}
+/**
+ * g_strescape:
+ * @source: a string to escape
+ * @exceptions: a string of characters not to escape in @source
+ *
+ * Escapes the special characters '\b', '\f', '\n', '\r', '\t', '\v', '\'
+ * and '"' in the string @source by inserting a '\' before
+ * them. Additionally all characters in the range 0x01-0x1F (everything
+ * below SPACE) and in the range 0x7F-0xFF (all non-ASCII chars) are
+ * replaced with a '\' followed by their octal representation.
+ * Characters supplied in @exceptions are not escaped.
+ *
+ * g_strcompress() does the reverse conversion.
+ *
+ * Returns: a newly-allocated copy of @source with certain
+ * characters escaped. See above.
+ */
gchar *
g_strescape (const gchar *source,
- const gchar *exceptions)
+ const gchar *exceptions)
{
const guchar *p;
gchar *dest;
gchar *q;
guchar excmap[256];
-
+
g_return_val_if_fail (source != NULL, NULL);
p = (guchar *) source;
guchar *e = (guchar *) exceptions;
while (*e)
- {
- excmap[*e] = 1;
- e++;
- }
+ {
+ excmap[*e] = 1;
+ e++;
+ }
}
while (*p)
{
if (excmap[*p])
- *q++ = *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;
- }
- }
+ {
+ 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 '\v':
+ *q++ = '\\';
+ *q++ = 'v';
+ 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;
}
-gchar*
+/**
+ * g_strchug:
+ * @string: a string to remove the leading whitespace from
+ *
+ * Removes leading whitespace from a string, by moving the rest
+ * of the characters forward.
+ *
+ * This function doesn't allocate or reallocate any memory;
+ * it modifies @string in place. Therefore, it cannot be used on
+ * statically allocated strings.
+ *
+ * The pointer to @string is returned to allow the nesting of functions.
+ *
+ * Also see g_strchomp() and g_strstrip().
+ *
+ * Returns: @string
+ */
+gchar *
g_strchug (gchar *string)
{
guchar *start;
for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
;
- g_memmove (string, start, strlen ((gchar *) start) + 1);
+ memmove (string, start, strlen ((gchar *) start) + 1);
return string;
}
-gchar*
+/**
+ * g_strchomp:
+ * @string: a string to remove the trailing whitespace from
+ *
+ * Removes trailing whitespace from a string.
+ *
+ * This function doesn't allocate or reallocate any memory;
+ * it modifies @string in place. Therefore, it cannot be used
+ * on statically allocated strings.
+ *
+ * The pointer to @string is returned to allow the nesting of functions.
+ *
+ * Also see g_strchug() and g_strstrip().
+ *
+ * Returns: @string
+ */
+gchar *
g_strchomp (gchar *string)
{
gsize len;
while (len--)
{
if (g_ascii_isspace ((guchar) string[len]))
- string[len] = '\0';
+ string[len] = '\0';
else
- break;
+ 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.
- *
+ * @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.
+ * @delimiter. If @max_tokens is reached, the remainder of @string is
+ * appended to the last token.
+ *
+ * As an example, the result of g_strsplit (":a:bc::d:", ":", -1) is a
+ * %NULL-terminated vector containing the six strings "", "a", "bc", "", "d"
+ * 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
* 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
+ *
+ * Returns: a newly-allocated %NULL-terminated array of strings. Use
* g_strfreev() to free it.
- **/
+ */
gchar**
g_strsplit (const gchar *string,
- const gchar *delimiter,
- gint max_tokens)
+ const gchar *delimiter,
+ gint max_tokens)
{
GSList *string_list = NULL, *slist;
gchar **str_array, *s;
s = strstr (remainder, delimiter);
if (s)
{
- gsize delimiter_len = strlen (delimiter);
+ gsize delimiter_len = strlen (delimiter);
while (--max_tokens && s)
- {
- gsize len;
-
- len = s - remainder;
- string_list = g_slist_prepend (string_list,
- g_strndup (remainder, len));
- n++;
- remainder = s + delimiter_len;
- s = strstr (remainder, delimiter);
- }
+ {
+ gsize len;
+
+ len = s - remainder;
+ string_list = g_slist_prepend (string_list,
+ g_strndup (remainder, len));
+ n++;
+ remainder = s + delimiter_len;
+ s = strstr (remainder, delimiter);
+ }
}
if (*string)
{
* 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
- *
+ * 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_strsplit_set ("abc:def/ghi", ":/", -1) is a
- * %NULL-terminated vector containing the three strings "abc", "def",
+ * %NULL-terminated vector containing the three strings "abc", "def",
* and "ghi".
*
- * The result if g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated
+ * The result of g_strsplit_set (":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
* to represent empty elements, you'll need to check for the empty string
* before calling g_strsplit_set().
*
- * Note that this function works on bytes not characters, so it can't be used
+ * 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
+ *
+ * Returns: 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)
+ const gchar *delimiters,
+ gint max_tokens)
{
gboolean delim_table[256];
GSList *tokens, *list;
const gchar *current;
gchar *token;
gchar **result;
-
+
g_return_val_if_fail (string != NULL, NULL);
g_return_val_if_fail (delimiters != NULL, NULL);
result[0] = NULL;
return result;
}
-
+
memset (delim_table, FALSE, sizeof (delim_table));
for (s = delimiters; *s != '\0'; ++s)
delim_table[*(guchar *)s] = TRUE;
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;
- token = g_strndup (current, s - current);
- tokens = g_slist_prepend (tokens, token);
- ++n_tokens;
+ current = s + 1;
+ }
- current = s + 1;
- }
-
++s;
}
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.
- **/
+ * @str_array: a %NULL-terminated array of strings to free
+ *
+ * Frees a %NULL-terminated array of strings, as well as each
+ * string it contains.
+ *
+ * If @str_array is %NULL, this function simply returns.
+ */
void
g_strfreev (gchar **str_array)
{
int i;
for (i = 0; str_array[i] != NULL; i++)
- g_free (str_array[i]);
+ g_free (str_array[i]);
g_free (str_array);
}
/**
* g_strdupv:
- * @str_array: %NULL-terminated array of strings.
- *
+ * @str_array: a %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.
- **/
+ *
+ * Returns: a new %NULL-terminated array of strings.
+ */
gchar**
g_strdupv (gchar **str_array)
{
i = 0;
while (str_array[i])
++i;
-
+
retval = g_new (gchar*, i + 1);
i = 0;
return NULL;
}
+/**
+ * g_strjoinv:
+ * @separator: (allow-none): a string to insert between each of the
+ * strings, or %NULL
+ * @str_array: a %NULL-terminated array of strings to join
+ *
+ * Joins a number of strings together to form one long string, with the
+ * optional @separator inserted between each of them. The returned string
+ * should be freed with g_free().
+ *
+ * Returns: a newly-allocated string containing all of the strings joined
+ * together, with @separator between them
+ */
gchar*
g_strjoinv (const gchar *separator,
- gchar **str_array)
+ gchar **str_array)
{
gchar *string;
gchar *ptr;
{
gint i;
gsize len;
- gsize separator_len;
+ gsize separator_len;
separator_len = strlen (separator);
/* First part, getting length */
string = g_new (gchar, len);
ptr = g_stpcpy (string, *str_array);
for (i = 1; str_array[i] != NULL; i++)
- {
+ {
ptr = g_stpcpy (ptr, separator);
ptr = g_stpcpy (ptr, str_array[i]);
- }
+ }
}
else
string = g_strdup ("");
return string;
}
+/**
+ * g_strjoin:
+ * @separator: (allow-none): a string to insert between each of the
+ * strings, or %NULL
+ * @...: a %NULL-terminated list of strings to join
+ *
+ * Joins a number of strings together to form one long string, with the
+ * optional @separator inserted between each of them. The returned string
+ * should be freed with g_free().
+ *
+ * Returns: a newly-allocated string containing all of the strings joined
+ * together, with @separator between them
+ */
gchar*
-g_strjoin (const gchar *separator,
- ...)
+g_strjoin (const gchar *separator,
+ ...)
{
gchar *string, *s;
va_list args;
- gsize len;
- gsize separator_len;
+ gsize len;
+ gsize separator_len;
gchar *ptr;
if (separator == NULL)
s = va_arg (args, gchar*);
while (s)
- {
- len += separator_len + strlen (s);
- s = va_arg (args, gchar*);
- }
+ {
+ len += separator_len + strlen (s);
+ s = va_arg (args, gchar*);
+ }
va_end (args);
/* Second part, building string */
s = va_arg (args, gchar*);
while (s)
- {
- ptr = g_stpcpy (ptr, separator);
+ {
+ ptr = g_stpcpy (ptr, separator);
ptr = g_stpcpy (ptr, s);
- s = va_arg (args, gchar*);
- }
+ s = va_arg (args, gchar*);
+ }
}
else
string = g_strdup ("");
/**
* g_strstr_len:
- * @haystack: a string.
- * @haystack_len: the maximum length of @haystack.
- * @needle: the string to search for.
+ * @haystack: a string
+ * @haystack_len: the maximum length of @haystack. Note that -1 is
+ * a valid length, if @haystack is nul-terminated, meaning it will
+ * search through the whole string.
+ * @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.
+ * to @haystack_len.
*
- * Return value: a pointer to the found occurrence, or
+ * Returns: a pointer to the found occurrence, or
* %NULL if not found.
- **/
+ */
gchar *
g_strstr_len (const gchar *haystack,
- gssize haystack_len,
- const gchar *needle)
+ 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
gsize i;
if (needle_len == 0)
- return (gchar *)haystack;
+ return (gchar *)haystack;
if (haystack_len < needle_len)
- return NULL;
-
+ 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++;
- }
-
+
+ while (p <= end && *p)
+ {
+ 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.
+ * @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
+ * Returns: a pointer to the found occurrence, or
* %NULL if not found.
- **/
+ */
gchar *
g_strrstr (const gchar *haystack,
- const gchar *needle)
+ 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);
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;
-
+ 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.
+ * @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.
+ * to @haystack_len.
*
- * Return value: a pointer to the found occurrence, or
+ * Returns: a pointer to the found occurrence, or
* %NULL if not found.
- **/
+ */
gchar *
g_strrstr_len (const gchar *haystack,
- gssize haystack_len,
- const gchar *needle)
+ 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 i;
while (p < haystack_max && *p)
- p++;
+ p++;
if (p < haystack + needle_len)
- return NULL;
-
+ 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--;
- }
+ {
+ 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.
+ * @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.
+ * Returns: %TRUE if @str end with @suffix, %FALSE otherwise.
*
* Since: 2.2
- **/
+ */
gboolean
-g_str_has_suffix (const gchar *str,
- const gchar *suffix)
+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);
/**
* g_str_has_prefix:
- * @str: a nul-terminated string.
- * @prefix: the nul-terminated prefix to look for.
+ * @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.
+ * Returns: %TRUE if @str begins with @prefix, %FALSE otherwise.
*
* Since: 2.2
- **/
+ */
gboolean
-g_str_has_prefix (const gchar *str,
- const gchar *prefix)
+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;
+ return strncmp (str, prefix, strlen (prefix)) == 0;
}
-
/**
* g_strv_length:
- * @str_array: a %NULL-terminated array of strings.
- *
- * Returns the length of the given %NULL-terminated
+ * @str_array: a %NULL-terminated array of strings
+ *
+ * Returns the length of the given %NULL-terminated
* string array @str_array.
- *
- * Return value: length of @str_array.
+ *
+ * Returns: length of @str_array.
*
* Since: 2.6
- **/
+ */
guint
g_strv_length (gchar **str_array)
{
return i;
}
+static void
+index_add_folded (GPtrArray *array,
+ const gchar *start,
+ const gchar *end)
+{
+ gchar *normal;
+
+ normal = g_utf8_normalize (start, end - start, G_NORMALIZE_ALL_COMPOSE);
+
+ /* TODO: Invent time machine. Converse with Mustafa Ataturk... */
+ if (strstr (normal, "ı") || strstr (normal, "İ"))
+ {
+ gchar *s = normal;
+ GString *tmp;
+
+ tmp = g_string_new (NULL);
+
+ while (*s)
+ {
+ gchar *i, *I, *e;
+
+ i = strstr (s, "ı");
+ I = strstr (s, "İ");
+
+ if (!i && !I)
+ break;
+ else if (i && !I)
+ e = i;
+ else if (I && !i)
+ e = I;
+ else if (i < I)
+ e = i;
+ else
+ e = I;
+
+ g_string_append_len (tmp, s, e - s);
+ g_string_append_c (tmp, 'i');
+ s = g_utf8_next_char (e);
+ }
+
+ g_string_append (tmp, s);
+ g_free (normal);
+ normal = g_string_free (tmp, FALSE);
+ }
+
+ g_ptr_array_add (array, g_utf8_casefold (normal, -1));
+ g_free (normal);
+}
+
+static gchar **
+split_words (const gchar *value)
+{
+ const gchar *start = NULL;
+ GPtrArray *result;
+ const gchar *s;
+
+ result = g_ptr_array_new ();
+
+ for (s = value; *s; s = g_utf8_next_char (s))
+ {
+ gunichar c = g_utf8_get_char (s);
+
+ if (start == NULL)
+ {
+ if (g_unichar_isalnum (c) || g_unichar_ismark (c))
+ start = s;
+ }
+ else
+ {
+ if (!g_unichar_isalnum (c) && !g_unichar_ismark (c))
+ {
+ index_add_folded (result, start, s);
+ start = NULL;
+ }
+ }
+ }
+
+ if (start)
+ index_add_folded (result, start, s);
+
+ g_ptr_array_add (result, NULL);
+
+ return (gchar **) g_ptr_array_free (result, FALSE);
+}
/**
- * g_dpgettext:
- * @domain: the translation domain to use, or %NULL to use
- * the domain set with textdomain()
- * @msgctxtid: a combined message context and message id, separated
- * by a \004 character
- * @msgidoffset: the offset of the message id in @msgctxid
+ * g_str_tokenize_and_fold:
+ * @string: a string
+ * @translit_locale: (allow-none): the language code (like 'de' or
+ * 'en_GB') from which @string originates
+ * @ascii_alternates: (out) (transfer full) (array zero-terminated=1): a
+ * return location for ASCII alternates
*
- * This function is a variant of dgettext() which supports
- * a disambiguating message context. GNU gettext uses the
- * '\004' character to separate the message context and
- * message id in @msgctxtid.
- * If 0 is passed as @msgidoffset, this function will fall back to
- * trying to use the deprecated convention of using "|" as a separation
- * character.
+ * Tokenises @string and performs folding on each token.
*
- * Applications should normally not use this function directly,
- * but use the C_() macro for translations with context.
+ * A token is a non-empty sequence of alphanumeric characters in the
+ * source string, separated by non-alphanumeric characters. An
+ * "alphanumeric" character for this purpose is one that matches
+ * g_unichar_isalnum() or g_unichar_ismark().
*
- * Returns: The translated string
+ * Each token is then (Unicode) normalised and case-folded. If
+ * @ascii_alternates is non-%NULL and some of the returned tokens
+ * contain non-ASCII characters, ASCII alternatives will be generated.
*
- * Since: 2.16
- */
-const gchar *
-g_dpgettext (const gchar *domain,
- const gchar *msgctxtid,
- gsize msgidoffset)
+ * The number of ASCII alternatives that are generated and the method
+ * for doing so is unspecified, but @translit_locale (if specified) may
+ * improve the transliteration if the language of the source string is
+ * known.
+ *
+ * Returns: (transfer full) (array zero-terminated=1): the folded tokens
+ *
+ * Since: 2.40
+ **/
+gchar **
+g_str_tokenize_and_fold (const gchar *string,
+ const gchar *translit_locale,
+ gchar ***ascii_alternates)
{
- const gchar *translation;
- gchar *sep;
+ gchar **result;
+
+ g_return_val_if_fail (string != NULL, NULL);
+
+ if (ascii_alternates && g_str_is_ascii (string))
+ {
+ *ascii_alternates = g_new0 (gchar *, 0 + 1);
+ ascii_alternates = NULL;
+ }
- translation = dgettext (domain, msgctxtid);
+ result = split_words (string);
- if (translation == msgctxtid)
+ if (ascii_alternates)
{
- if (msgidoffset > 0)
- return msgctxtid + msgidoffset;
+ gint i, j, n;
+
+ n = g_strv_length (result);
+ *ascii_alternates = g_new (gchar *, n + 1);
+ j = 0;
- sep = strchr (msgctxtid, '|');
-
- if (sep)
+ for (i = 0; i < n; i++)
{
- /* try with '\004' instead of '|', in case
- * xgettext -kQ_:1g was used
- */
- gchar *tmp = g_alloca (strlen (msgctxtid) + 1);
- strcpy (tmp, msgctxtid);
- tmp[sep - msgctxtid] = '\004';
-
- translation = dgettext (domain, tmp);
-
- if (translation == tmp)
- return sep + 1;
+ if (!g_str_is_ascii (result[i]))
+ {
+ gchar *composed;
+ gchar *ascii;
+ gint k;
+
+ composed = g_utf8_normalize (result[i], -1, G_NORMALIZE_ALL_COMPOSE);
+
+ ascii = g_str_to_ascii (composed, translit_locale);
+
+ /* Only accept strings that are now entirely alnums */
+ for (k = 0; ascii[k]; k++)
+ if (!g_ascii_isalnum (ascii[k]))
+ break;
+
+ if (ascii[k] == '\0')
+ /* Made it to the end... */
+ (*ascii_alternates)[j++] = ascii;
+ else
+ g_free (ascii);
+
+ g_free (composed);
+ }
}
+
+ (*ascii_alternates)[j] = NULL;
}
- return translation;
+ return result;
}
+/**
+ * g_str_match_string:
+ * @search_term: the search term from the user
+ * @potential_hit: the text that may be a hit
+ * @accept_alternates: %TRUE to accept ASCII alternates
+ *
+ * Checks if a search conducted for @search_term should match
+ * @potential_hit.
+ *
+ * This function calls g_str_tokenize_and_fold() on both
+ * @search_term and @potential_hit. ASCII alternates are never taken
+ * for @search_term but will be taken for @potential_hit according to
+ * the value of @accept_alternates.
+ *
+ * A hit occurs when each folded token in @search_term is a prefix of a
+ * folded token from @potential_hit.
+ *
+ * Depending on how you're performing the search, it will typically be
+ * faster to call g_str_tokenize_and_fold() on each string in
+ * your corpus and build an index on the returned folded tokens, then
+ * call g_str_tokenize_and_fold() on the search term and
+ * perform lookups into that index.
+ *
+ * As some examples, searching for "fred" would match the potential hit
+ * "Smith, Fred" and also "Frédéric". Searching for "Fréd" would match
+ * "Frédéric" but not "Frederic" (due to the one-directional nature of
+ * accent matching). Searching "fo" would match "Foo" and "Bar Foo
+ * Baz", but not "SFO" (because no word as "fo" as a prefix).
+ *
+ * Returns: %TRUE if @potential_hit is a hit
+ *
+ * Since: 2.40
+ **/
+gboolean
+g_str_match_string (const gchar *search_term,
+ const gchar *potential_hit,
+ gboolean accept_alternates)
+{
+ gchar **alternates = NULL;
+ gchar **term_tokens;
+ gchar **hit_tokens;
+ gboolean matched;
+ gint i, j;
+
+ g_return_val_if_fail (search_term != NULL, FALSE);
+ g_return_val_if_fail (potential_hit != NULL, FALSE);
+
+ term_tokens = g_str_tokenize_and_fold (search_term, NULL, NULL);
+ hit_tokens = g_str_tokenize_and_fold (potential_hit, NULL, accept_alternates ? &alternates : NULL);
+
+ matched = TRUE;
-#define __G_STRFUNCS_C__
-#include "galiasdef.c"
+ for (i = 0; term_tokens[i]; i++)
+ {
+ for (j = 0; hit_tokens[j]; j++)
+ if (g_str_has_prefix (hit_tokens[j], term_tokens[i]))
+ goto one_matched;
+
+ if (accept_alternates)
+ for (j = 0; alternates[j]; j++)
+ if (g_str_has_prefix (alternates[j], term_tokens[i]))
+ goto one_matched;
+
+ matched = FALSE;
+ break;
+
+one_matched:
+ continue;
+ }
+
+ g_strfreev (term_tokens);
+ g_strfreev (hit_tokens);
+ g_strfreev (alternates);
+
+ return matched;
+}
projects / platform / upstream / glib.git / blobdiff