* MT safe
*/
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
+#include "config.h"
#define _GNU_SOURCE /* For stpcpy */
#include <stdlib.h>
#include <string.h>
#include <locale.h>
+#include <errno.h>
#include <ctype.h> /* For tolower() */
#if !defined (HAVE_STRSIGNAL) || !defined(NO_SYS_SIGLIST_DECL)
#include <signal.h>
#endif
+
+#include "galias.h"
#include "glib.h"
+#include "gprintf.h"
+#include "gprintfint.h"
#ifdef G_OS_WIN32
#include <windows.h>
#endif
/* do not include <unistd.h> in this place since it
- * inteferes with g_strsignal() on some OSes
+ * interferes with g_strsignal() on some OSes
*/
+static const guint16 ascii_table_data[256] = {
+ 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
+ 0x004, 0x104, 0x104, 0x004, 0x104, 0x104, 0x004, 0x004,
+ 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
+ 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004,
+ 0x140, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
+ 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
+ 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459,
+ 0x459, 0x459, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
+ 0x0d0, 0x653, 0x653, 0x653, 0x653, 0x653, 0x653, 0x253,
+ 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
+ 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253,
+ 0x253, 0x253, 0x253, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0,
+ 0x0d0, 0x473, 0x473, 0x473, 0x473, 0x473, 0x473, 0x073,
+ 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
+ 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073,
+ 0x073, 0x073, 0x073, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x004
+ /* the upper 128 are all zeroes */
+};
+
+const guint16 * const g_ascii_table = ascii_table_data;
+
gchar*
g_strdup (const gchar *str)
{
gchar *new_str;
+ gsize length;
if (str)
{
- new_str = g_new (char, strlen (str) + 1);
- strcpy (new_str, str);
+ length = strlen (str) + 1;
+ new_str = g_new (char, length);
+ memcpy (new_str, str, length);
}
else
new_str = NULL;
gchar*
g_strndup (const gchar *str,
- guint n)
+ gsize n)
{
gchar *new_str;
}
gchar*
-g_strnfill (guint length,
+g_strnfill (gsize length,
gchar fill_char)
{
- register gchar *str, *s, *end;
+ gchar *str;
str = g_new (gchar, length + 1);
- s = str;
- end = str + length;
- while (s < end)
- *(s++) = fill_char;
- *s = 0;
+ memset (str, (guchar)fill_char, length);
+ str[length] = '\0';
return str;
}
/**
* g_stpcpy:
- * @dest: destination buffer
- * @src: source string
+ * @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.
gchar*
g_strdup_vprintf (const gchar *format,
- va_list args1)
+ va_list args)
{
- gchar *buffer;
- va_list args2;
+ gchar *string = NULL;
- G_VA_COPY (args2, args1);
+ g_vasprintf (&string, format, args);
- buffer = g_new (gchar, g_printf_string_upper_bound (format, args1));
-
- vsprintf (buffer, format, args2);
- va_end (args2);
-
- return buffer;
+ return string;
}
gchar*
gchar*
g_strconcat (const gchar *string1, ...)
{
- guint l;
+ gsize l;
va_list args;
gchar *s;
gchar *concat;
gchar *ptr;
- g_return_val_if_fail (string1 != NULL, NULL);
+ if (!string1)
+ return NULL;
l = 1 + strlen (string1);
va_start (args, string1);
s = va_arg (args, gchar*);
while (s)
{
- strcat (concat, s);
+ ptr = g_stpcpy (ptr, s);
s = va_arg (args, gchar*);
}
va_end (args);
return concat;
}
+/**
+ * g_strtod:
+ * @nptr: the string to convert to a numeric value.
+ * @endptr: if non-%NULL, it returns the character after
+ * the last character used in the conversion.
+ *
+ * Converts a string to a #gdouble value.
+ * It calls the standard strtod() function to handle the conversion, but
+ * if the string is not completely converted it attempts the conversion
+ * again with g_ascii_strtod(), and returns the best match.
+ *
+ * This function should seldomly be used. The normal situation when reading
+ * numbers not for human consumption is to use g_ascii_strtod(). Only when
+ * you know that you must expect both locale formatted and C formatted numbers
+ * should you use this. Make sure that you don't pass strings such as comma
+ * separated lists of values, since the commas may be interpreted as a decimal
+ * point in some locales, causing unexpected results.
+ *
+ * Return value: the #gdouble value.
+ **/
gdouble
g_strtod (const gchar *nptr,
- gchar **endptr)
+ gchar **endptr)
{
gchar *fail_pos_1;
gchar *fail_pos_2;
val_1 = strtod (nptr, &fail_pos_1);
if (fail_pos_1 && fail_pos_1[0] != 0)
- {
- gchar *old_locale;
-
- old_locale = g_strdup (setlocale (LC_NUMERIC, NULL));
- setlocale (LC_NUMERIC, "C");
- val_2 = strtod (nptr, &fail_pos_2);
- setlocale (LC_NUMERIC, old_locale);
- g_free (old_locale);
- }
+ val_2 = g_ascii_strtod (nptr, &fail_pos_2);
if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2)
{
}
}
+/**
+ * g_ascii_strtod:
+ * @nptr: the string to convert to a numeric value.
+ * @endptr: if non-%NULL, it returns the character after
+ * the last character used in the conversion.
+ *
+ * Converts a string to a #gdouble value.
+ * This function behaves like the standard strtod() function
+ * does in the C locale. It does this without actually
+ * changing the current locale, since that would not be
+ * thread-safe.
+ *
+ * This function is typically used when reading configuration
+ * files or other non-user input that should be locale independent.
+ * To handle input from the user you should normally use the
+ * locale-sensitive system strtod() function.
+ *
+ * To convert from a #gdouble to a string in a locale-insensitive
+ * way, use g_ascii_dtostr().
+ *
+ * If the correct value would cause overflow, plus or minus %HUGE_VAL
+ * is returned (according to the sign of the value), and %ERANGE is
+ * stored in %errno. If the correct value would cause underflow,
+ * zero is returned and %ERANGE is stored in %errno.
+ *
+ * This function resets %errno before calling strtod() so that
+ * you can reliably detect overflow and underflow.
+ *
+ * Return value: the #gdouble value.
+ **/
+gdouble
+g_ascii_strtod (const gchar *nptr,
+ gchar **endptr)
+{
+ gchar *fail_pos;
+ gdouble val;
+ struct lconv *locale_data;
+ const char *decimal_point;
+ int decimal_point_len;
+ const char *p, *decimal_point_pos;
+ const char *end = NULL; /* Silence gcc */
+ int strtod_errno;
+
+ g_return_val_if_fail (nptr != NULL, 0);
+
+ fail_pos = NULL;
+
+ locale_data = localeconv ();
+ decimal_point = locale_data->decimal_point;
+ decimal_point_len = strlen (decimal_point);
+
+ g_assert (decimal_point_len != 0);
+
+ decimal_point_pos = NULL;
+ end = NULL;
+
+ if (decimal_point[0] != '.' ||
+ decimal_point[1] != 0)
+ {
+ p = nptr;
+ /* Skip leading space */
+ while (g_ascii_isspace (*p))
+ p++;
+
+ /* Skip leading optional sign */
+ if (*p == '+' || *p == '-')
+ p++;
+
+ if (p[0] == '0' &&
+ (p[1] == 'x' || p[1] == 'X'))
+ {
+ p += 2;
+ /* HEX - find the (optional) decimal point */
+
+ while (g_ascii_isxdigit (*p))
+ p++;
+
+ if (*p == '.')
+ decimal_point_pos = p++;
+
+ while (g_ascii_isxdigit (*p))
+ p++;
+
+ if (*p == 'p' || *p == 'P')
+ p++;
+ if (*p == '+' || *p == '-')
+ p++;
+ while (g_ascii_isdigit (*p))
+ p++;
+
+ end = p;
+ }
+ else if (g_ascii_isdigit (*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 */
+ }
+
+ if (decimal_point_pos)
+ {
+ char *copy, *c;
+
+ /* We need to convert the '.' to the locale specific decimal point */
+ copy = g_malloc (end - nptr + 1 + decimal_point_len);
+
+ c = copy;
+ memcpy (c, nptr, decimal_point_pos - nptr);
+ c += decimal_point_pos - nptr;
+ memcpy (c, decimal_point, decimal_point_len);
+ c += decimal_point_len;
+ memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1));
+ c += end - (decimal_point_pos + 1);
+ *c = 0;
+
+ errno = 0;
+ val = strtod (copy, &fail_pos);
+ 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);
+ }
+
+ 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);
+ }
+
+ g_free (copy);
+ }
+ else
+ {
+ errno = 0;
+ val = strtod (nptr, &fail_pos);
+ strtod_errno = errno;
+ }
+
+ if (endptr)
+ *endptr = fail_pos;
+
+ errno = strtod_errno;
+
+ return val;
+}
+
+
+/**
+ * g_ascii_dtostr:
+ * @buffer: A buffer to place the resulting string in
+ * @buf_len: The length of the buffer.
+ * @d: The #gdouble to convert
+ *
+ * Converts a #gdouble to a string, using the '.' as
+ * decimal point.
+ *
+ * This functions generates enough precision that converting
+ * the string back using g_ascii_strtod() gives the same machine-number
+ * (on machines with IEEE compatible 64bit doubles). It is
+ * guaranteed that the size of the resulting string will never
+ * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes.
+ *
+ * Return value: The pointer to the buffer with the converted string.
+ **/
+gchar *
+g_ascii_dtostr (gchar *buffer,
+ gint buf_len,
+ gdouble d)
+{
+ return g_ascii_formatd (buffer, buf_len, "%.17g", d);
+}
+
+/**
+ * g_ascii_formatd:
+ * @buffer: A buffer to place the resulting string in
+ * @buf_len: The length of the buffer.
+ * @format: The printf()-style format to use for the
+ * code to use for converting.
+ * @d: The #gdouble to convert
+ *
+ * Converts a #gdouble to a string, using the '.' as
+ * decimal point. To format the number you pass in
+ * a printf()-style format string. Allowed conversion
+ * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'.
+ *
+ * If you just want to want to serialize the value into a
+ * string, use g_ascii_dtostr().
+ *
+ * Return value: The pointer to the buffer with the converted string.
+ **/
+gchar *
+g_ascii_formatd (gchar *buffer,
+ gint buf_len,
+ const gchar *format,
+ gdouble d)
+{
+ struct lconv *locale_data;
+ const char *decimal_point;
+ int decimal_point_len;
+ gchar *p;
+ int rest_len;
+ gchar format_char;
+
+ g_return_val_if_fail (buffer != NULL, NULL);
+ g_return_val_if_fail (format[0] == '%', NULL);
+ g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL);
+
+ format_char = format[strlen (format) - 1];
+
+ g_return_val_if_fail (format_char == 'e' || format_char == 'E' ||
+ format_char == 'f' || format_char == 'F' ||
+ format_char == 'g' || format_char == 'G',
+ NULL);
+
+ if (format[0] != '%')
+ return NULL;
+
+ if (strpbrk (format + 1, "'l%"))
+ return NULL;
+
+ if (!(format_char == 'e' || format_char == 'E' ||
+ format_char == 'f' || format_char == 'F' ||
+ format_char == 'g' || format_char == 'G'))
+ return NULL;
+
+
+ _g_snprintf (buffer, buf_len, format, d);
+
+ locale_data = localeconv ();
+ decimal_point = locale_data->decimal_point;
+ decimal_point_len = strlen (decimal_point);
+
+ g_assert (decimal_point_len != 0);
+
+ if (decimal_point[0] != '.' ||
+ decimal_point[1] != 0)
+ {
+ p = buffer;
+
+ if (*p == '+' || *p == '-')
+ p++;
+
+ while (isdigit ((guchar)*p))
+ p++;
+
+ if (strncmp (p, decimal_point, decimal_point_len) == 0)
+ {
+ *p = '.';
+ p++;
+ if (decimal_point_len > 1) {
+ rest_len = strlen (p + (decimal_point_len-1));
+ memmove (p, p + (decimal_point_len-1),
+ rest_len);
+ p[rest_len] = 0;
+
+ }
+ }
+ }
+
+ return buffer;
+}
+
+/**
+ * g_ascii_strtoull:
+ * @nptr: the string to convert to a numeric value.
+ * @endptr: if non-%NULL, it returns the character after
+ * the last character used in the conversion.
+ * @base: to be used for the conversion, 2..36 or 0
+ *
+ * Converts a string to a #guint64 value.
+ * This function behaves like the standard strtoull() function
+ * does in the C locale. It does this without actually
+ * changing the current locale, since that would not be
+ * thread-safe.
+ *
+ * This function is typically used when reading configuration
+ * files or other non-user input that should be locale independent.
+ * To handle input from the user you should normally use the
+ * locale-sensitive system strtoull() function.
+ *
+ * If the correct value would cause overflow, %G_MAXUINT64
+ * is returned, and %ERANGE is stored in %errno.
+ *
+ * Return value: the #guint64 value.
+ *
+ * Since: 2.2
+ **/
+guint64
+g_ascii_strtoull (const gchar *nptr,
+ gchar **endptr,
+ guint base)
+{
+ /* this code is based on on the strtol(3) code from GNU libc released under
+ * the GNU Lesser General Public License.
+ *
+ * Copyright (C) 1991,92,94,95,96,97,98,99,2000,01,02
+ * Free Software Foundation, Inc.
+ */
+#define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \
+ (c) == '\r' || (c) == '\t' || (c) == '\v')
+#define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z')
+#define ISLOWER(c) ((c) >= 'a' && (c) <= 'z')
+#define ISALPHA(c) (ISUPPER (c) || ISLOWER (c))
+#define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c))
+#define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c))
+ gboolean negative, overflow;
+ guint64 cutoff;
+ guint64 cutlim;
+ guint64 ui64;
+ const gchar *s, *save;
+ guchar c;
+
+ g_return_val_if_fail (nptr != NULL, 0);
+
+ if (base == 1 || base > 36)
+ {
+ errno = EINVAL;
+ return 0;
+ }
+
+ save = s = nptr;
+
+ /* Skip white space. */
+ while (ISSPACE (*s))
+ ++s;
+ if (!*s)
+ goto noconv;
+
+ /* Check for a sign. */
+ negative = FALSE;
+ if (*s == '-')
+ {
+ negative = TRUE;
+ ++s;
+ }
+ else if (*s == '+')
+ ++s;
+
+ /* Recognize number prefix and if BASE is zero, figure it out ourselves. */
+ if (*s == '0')
+ {
+ if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X')
+ {
+ s += 2;
+ base = 16;
+ }
+ else if (base == 0)
+ base = 8;
+ }
+ else if (base == 0)
+ base = 10;
+
+ /* Save the pointer so we can check later if anything happened. */
+ save = s;
+ cutoff = G_MAXUINT64 / base;
+ cutlim = G_MAXUINT64 % base;
+
+ overflow = FALSE;
+ ui64 = 0;
+ c = *s;
+ for (; c; c = *++s)
+ {
+ if (c >= '0' && c <= '9')
+ c -= '0';
+ else if (ISALPHA (c))
+ c = TOUPPER (c) - 'A' + 10;
+ else
+ break;
+ if (c >= base)
+ break;
+ /* Check for overflow. */
+ if (ui64 > cutoff || (ui64 == cutoff && c > cutlim))
+ overflow = TRUE;
+ else
+ {
+ ui64 *= base;
+ ui64 += c;
+ }
+ }
+
+ /* Check if anything actually happened. */
+ if (s == save)
+ goto noconv;
+
+ /* Store in ENDPTR the address of one character
+ past the last character we converted. */
+ if (endptr)
+ *endptr = (gchar*) s;
+
+ if (overflow)
+ {
+ errno = ERANGE;
+ return G_MAXUINT64;
+ }
+
+ /* Return the result of the appropriate sign. */
+ return negative ? -ui64 : ui64;
+
+ noconv:
+ /* We must handle a special case here: the base is 0 or 16 and the
+ first two characters are '0' and 'x', but the rest are no
+ hexadecimal digits. This is no error case. We return 0 and
+ ENDPTR points to the `x`. */
+ if (endptr)
+ {
+ if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X'
+ && save[-2] == '0')
+ *endptr = (gchar*) &save[-1];
+ else
+ /* There was no number to convert. */
+ *endptr = (gchar*) nptr;
+ }
+ return 0;
+}
+
+
G_CONST_RETURN gchar*
g_strerror (gint errnum)
{
static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT;
char *msg;
+ int saved_errno = errno;
#ifdef HAVE_STRERROR
- return strerror (errnum);
+ const char *msg_locale;
+
+ msg_locale = strerror (errnum);
+ if (g_get_charset (NULL))
+ {
+ errno = saved_errno;
+ return msg_locale;
+ }
+ else
+ {
+ gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL);
+ if (msg_utf8)
+ {
+ /* Stick in the quark table so that we can return a static result
+ */
+ GQuark msg_quark = g_quark_from_string (msg_utf8);
+ g_free (msg_utf8);
+
+ msg_utf8 = (gchar *) g_quark_to_string (msg_quark);
+ errno = saved_errno;
+ return msg_utf8;
+ }
+ }
#elif NO_SYS_ERRLIST
switch (errnum)
{
case EISCONN: return "socket is already connected";
#endif
#ifdef EISDIR
- case EISDIR: return "illegal operation on a directory";
+ case EISDIR: return "is a directory";
#endif
#ifdef EISNAME
case EISNAM: return "is a name file";
g_static_private_set (&msg_private, msg, g_free);
}
- sprintf (msg, "unknown error (%d)", errnum);
+ _g_sprintf (msg, "unknown error (%d)", errnum);
+ errno = saved_errno;
return msg;
}
char *msg;
#ifdef HAVE_STRSIGNAL
+ const char *msg_locale;
+
#if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN)
extern const char *strsignal(int);
#else
/* this is declared differently (const) in string.h on BeOS */
extern char *strsignal (int sig);
#endif /* !G_OS_BEOS && !G_WITH_CYGWIN */
- return strsignal (signum);
+ 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)
{
g_static_private_set (&msg_private, msg, g_free);
}
- sprintf (msg, "unknown signal (%d)", signum);
+ _g_sprintf (msg, "unknown signal (%d)", signum);
return msg;
}
}
#endif /* ! HAVE_STRLCPY */
+/**
+ * g_ascii_strdown:
+ * @str: a string.
+ * @len: length of @str in bytes, or -1 if @str is nul-terminated.
+ *
+ * Converts all upper case ASCII letters to lower case ASCII letters.
+ *
+ * Return value: a newly-allocated string, with all the upper case
+ * characters in @str converted to lower case, with
+ * semantics that exactly match g_ascii_tolower(). (Note
+ * that this is unlike the old g_strdown(), which modified
+ * the string in place.)
+ **/
+gchar*
+g_ascii_strdown (const gchar *str,
+ gssize len)
+{
+ gchar *result, *s;
+
+ g_return_val_if_fail (str != NULL, NULL);
+
+ if (len < 0)
+ len = strlen (str);
+
+ result = g_strndup (str, len);
+ for (s = result; *s; s++)
+ *s = g_ascii_tolower (*s);
+
+ return result;
+}
+
+/**
+ * g_ascii_strup:
+ * @str: a string.
+ * @len: length of @str in bytes, or -1 if @str is nul-terminated.
+ *
+ * Converts all lower case ASCII letters to upper case ASCII letters.
+ *
+ * Return value: a newly allocated string, with all the lower case
+ * characters in @str converted to upper case, with
+ * semantics that exactly match g_ascii_toupper(). (Note
+ * that this is unlike the old g_strup(), which modified
+ * the string in place.)
+ **/
+gchar*
+g_ascii_strup (const gchar *str,
+ gssize len)
+{
+ gchar *result, *s;
+
+ g_return_val_if_fail (str != NULL, NULL);
+
+ if (len < 0)
+ len = strlen (str);
+
+ result = g_strndup (str, len);
+ for (s = result; *s; s++)
+ *s = g_ascii_toupper (*s);
+
+ return result;
+}
+
+/**
+ * g_strdown:
+ * @string: the string to convert.
+ *
+ * Converts a string to lower case.
+ *
+ * Return value: the string
+ *
+ * Deprecated: This function is totally broken for the reasons discussed in
+ * the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown()
+ * instead.
+ **/
gchar*
g_strdown (gchar *string)
{
while (*s)
{
- *s = tolower (*s);
+ if (isupper (*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
+ *
+ * Deprecated: This function is totally broken for the reasons discussed in
+ * the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead.
+ **/
gchar*
g_strup (gchar *string)
{
while (*s)
{
- *s = toupper (*s);
+ if (islower (*s))
+ *s = toupper (*s);
s++;
}
return string;
}
+/**
+ * g_ascii_tolower:
+ * @c: any character.
+ *
+ * Convert a character to ASCII lower case.
+ *
+ * Unlike the standard C library tolower() function, this only
+ * recognizes standard ASCII letters and ignores the locale, returning
+ * all non-ASCII characters unchanged, even if they are lower case
+ * letters in a particular character set. Also unlike the standard
+ * library function, this takes and returns a char, not an int, so
+ * don't call it on %EOF but no need to worry about casting to #guchar
+ * before passing a possibly non-ASCII character in.
+ *
+ * Return value: the result of converting @c to lower case.
+ * If @c is not an ASCII upper case letter,
+ * @c is returned unchanged.
+ **/
+gchar
+g_ascii_tolower (gchar c)
+{
+ return g_ascii_isupper (c) ? c - 'A' + 'a' : c;
+}
+
+/**
+ * g_ascii_toupper:
+ * @c: any character.
+ *
+ * Convert a character to ASCII upper case.
+ *
+ * Unlike the standard C library toupper() function, this only
+ * recognizes standard ASCII letters and ignores the locale, returning
+ * all non-ASCII characters unchanged, even if they are upper case
+ * letters in a particular character set. Also unlike the standard
+ * library function, this takes and returns a char, not an int, so
+ * don't call it on %EOF but no need to worry about casting to #guchar
+ * before passing a possibly non-ASCII character in.
+ *
+ * Return value: the result of converting @c to upper case.
+ * If @c is not an ASCII lower case letter,
+ * @c is returned unchanged.
+ **/
+gchar
+g_ascii_toupper (gchar c)
+{
+ return g_ascii_islower (c) ? c - 'a' + 'A' : c;
+}
+
+/**
+ * g_ascii_digit_value:
+ * @c: an ASCII character.
+ *
+ * Determines the numeric value of a character as a decimal
+ * digit. Differs from g_unichar_digit_value() because it takes
+ * a char, so there's no worry about sign extension if characters
+ * are signed.
+ *
+ * Return value: If @c is a decimal digit (according to
+ * g_ascii_isdigit()), its numeric value. Otherwise, -1.
+ **/
+int
+g_ascii_digit_value (gchar c)
+{
+ if (g_ascii_isdigit (c))
+ return c - '0';
+ return -1;
+}
+
+/**
+ * g_ascii_xdigit_value:
+ * @c: an ASCII character.
+ *
+ * Determines the numeric value of a character as a hexidecimal
+ * digit. Differs from g_unichar_xdigit_value() because it takes
+ * a char, so there's no worry about sign extension if characters
+ * are signed.
+ *
+ * Return value: If @c is a hex digit (according to
+ * g_ascii_isxdigit()), its numeric value. Otherwise, -1.
+ **/
+int
+g_ascii_xdigit_value (gchar c)
+{
+ if (c >= 'A' && c <= 'F')
+ return c - 'A' + 10;
+ if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ return g_ascii_digit_value (c);
+}
+
+/**
+ * g_ascii_strcasecmp:
+ * @s1: string to compare with @s2.
+ * @s2: string to compare with @s1.
+ *
+ * Compare two strings, ignoring the case of ASCII characters.
+ *
+ * Unlike the BSD strcasecmp() function, this only recognizes standard
+ * ASCII letters and ignores the locale, treating all non-ASCII
+ * characters as if they are not letters.
+ *
+ * Return value: an integer less than, equal to, or greater than
+ * zero if @s1 is found, respectively, to be less than,
+ * to match, or to be greater than @s2.
+ **/
+gint
+g_ascii_strcasecmp (const gchar *s1,
+ const gchar *s2)
+{
+ gint c1, c2;
+
+ g_return_val_if_fail (s1 != NULL, 0);
+ g_return_val_if_fail (s2 != NULL, 0);
+
+ while (*s1 && *s2)
+ {
+ c1 = (gint)(guchar) TOLOWER (*s1);
+ c2 = (gint)(guchar) TOLOWER (*s2);
+ if (c1 != c2)
+ return (c1 - c2);
+ s1++; s2++;
+ }
+
+ return (((gint)(guchar) *s1) - ((gint)(guchar) *s2));
+}
+
+/**
+ * g_ascii_strncasecmp:
+ * @s1: string to compare with @s2.
+ * @s2: string to compare with @s1.
+ * @n: number of characters to compare.
+ *
+ * Compare @s1 and @s2, ignoring the case of ASCII characters and any
+ * characters after the first @n in each string.
+ *
+ * Unlike the BSD strcasecmp() function, this only recognizes standard
+ * ASCII letters and ignores the locale, treating all non-ASCII
+ * characters as if they are not letters.
+ *
+ * Return value: an integer less than, equal to, or greater than zero
+ * if the first @n bytes of @s1 is found, respectively,
+ * to be less than, to match, or to be greater than the
+ * first @n bytes of @s2.
+ **/
+gint
+g_ascii_strncasecmp (const gchar *s1,
+ const gchar *s2,
+ gsize n)
+{
+ gint c1, c2;
+
+ g_return_val_if_fail (s1 != NULL, 0);
+ g_return_val_if_fail (s2 != NULL, 0);
+
+ while (n && *s1 && *s2)
+ {
+ n -= 1;
+ c1 = (gint)(guchar) TOLOWER (*s1);
+ c2 = (gint)(guchar) TOLOWER (*s2);
+ if (c1 != c2)
+ return (c1 - c2);
+ s1++; s2++;
+ }
+
+ if (n)
+ return (((gint) (guchar) *s1) - ((gint) (guchar) *s2));
+ else
+ return 0;
+}
+
+/**
+ * g_strcasecmp:
+ * @s1: a string.
+ * @s2: a string to compare with @s1.
+ *
+ * A case-insensitive string comparison, corresponding to the standard
+ * strcasecmp() function on platforms which support it.
+ *
+ * Return value: 0 if the strings match, a negative value if @s1 < @s2,
+ * or a positive value if @s1 > @s2.
+ *
+ * Deprecated: See g_strncasecmp() for a discussion of why this function is
+ * deprecated and how to replace it.
+ **/
gint
g_strcasecmp (const gchar *s1,
const gchar *s2)
#endif
}
+/**
+ * g_strncasecmp:
+ * @s1: a string.
+ * @s2: a string to compare with @s1.
+ * @n: the maximum number of characters to compare.
+ *
+ * A case-insensitive string comparison, corresponding to the standard
+ * strncasecmp() function on platforms which support it.
+ * It is similar to g_strcasecmp() except it only compares the first @n
+ * characters of the strings.
+ *
+ * Return value: 0 if the strings match, a negative value if @s1 < @s2,
+ * or a positive value if @s1 > @s2.
+ *
+ * Deprecated: The problem with g_strncasecmp() is that it does the
+ * comparison by calling toupper()/tolower(). These functions are
+ * locale-specific and operate on single bytes. However, it is impossible
+ * to handle things correctly from an I18N standpoint by operating on
+ * bytes, since characters may be multibyte. Thus g_strncasecmp() is
+ * broken if your string is guaranteed to be ASCII, since it's
+ * locale-sensitive, and it's broken if your string is localized, since
+ * it doesn't work on many encodings at all, including UTF-8, EUC-JP,
+ * etc.
+ *
+ * There are therefore two replacement functions: g_ascii_strncasecmp(),
+ * which only works on ASCII and is not locale-sensitive, and
+ * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8.
+ **/
gint
g_strncasecmp (const gchar *s1,
const gchar *s2,
- guint n)
+ guint n)
{
#ifdef HAVE_STRNCASECMP
return strncasecmp (s1, s2, n);
g_return_val_if_fail (string != NULL, NULL);
- for (start = (guchar*) string; *start && isspace (*start); start++)
+ for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++)
;
g_memmove (string, start, strlen ((gchar *) start) + 1);
gchar*
g_strchomp (gchar *string)
{
- gchar *s;
+ gsize len;
g_return_val_if_fail (string != NULL, NULL);
- if (!*string)
- return string;
-
- for (s = string + strlen (string) - 1; s >= string && isspace ((guchar)*s);
- s--)
- *s = '\0';
+ len = strlen (string);
+ while (len--)
+ {
+ if (g_ascii_isspace ((guchar) string[len]))
+ string[len] = '\0';
+ else
+ break;
+ }
return string;
}
+/**
+ * g_strsplit:
+ * @string: a string to split.
+ * @delimiter: a string which specifies the places at which to split the string.
+ * The delimiter is not included in any of the resulting strings, unless
+ * @max_tokens is reached.
+ * @max_tokens: the maximum number of pieces to split @string into. If this is
+ * less than 1, the string is split completely.
+ *
+ * Splits a string into a maximum of @max_tokens pieces, using the given
+ * @delimiter. If @max_tokens is reached, the remainder of @string is appended
+ * to the last token.
+ *
+ * As a special case, the result of splitting the empty string "" is an empty
+ * vector, not a vector containing a single string. The reason for this
+ * special case is that being able to represent a empty vector is typically
+ * more useful than consistent handling of empty elements. If you do need
+ * to represent empty elements, you'll need to check for the empty string
+ * before calling g_strsplit().
+ *
+ * Return value: a newly-allocated %NULL-terminated array of strings. Use
+ * g_strfreev() to free it.
+ **/
gchar**
g_strsplit (const gchar *string,
const gchar *delimiter,
{
GSList *string_list = NULL, *slist;
gchar **str_array, *s;
- guint n = 1;
+ guint n = 0;
+ const gchar *remainder;
g_return_val_if_fail (string != NULL, NULL);
g_return_val_if_fail (delimiter != NULL, NULL);
+ g_return_val_if_fail (delimiter[0] != '\0', NULL);
if (max_tokens < 1)
max_tokens = G_MAXINT;
- s = strstr (string, delimiter);
+ remainder = string;
+ s = strstr (remainder, delimiter);
if (s)
{
- guint delimiter_len = strlen (delimiter);
+ gsize delimiter_len = strlen (delimiter);
- do
+ while (--max_tokens && s)
{
- guint len;
+ gsize len;
gchar *new_string;
- len = s - string;
+ len = s - remainder;
new_string = g_new (gchar, len + 1);
- strncpy (new_string, string, len);
+ strncpy (new_string, remainder, len);
new_string[len] = 0;
string_list = g_slist_prepend (string_list, new_string);
n++;
- string = s + delimiter_len;
- s = strstr (string, delimiter);
+ remainder = s + delimiter_len;
+ s = strstr (remainder, delimiter);
}
- while (--max_tokens && s);
}
- string_list = g_slist_prepend (string_list, g_strdup (string));
+ if (*string)
+ {
+ n++;
+ string_list = g_slist_prepend (string_list, g_strdup (remainder));
+ }
str_array = g_new (gchar*, n + 1);
return str_array;
}
+/**
+ * g_strsplit_set:
+ * @string: The string to be tokenized
+ * @delimiters: A nul-terminated string containing bytes that are used
+ * to split the string.
+ * @max_tokens: The maximum number of tokens to split @string into.
+ * If this is less than 1, the string is split completely
+ *
+ * Splits @string into a number of tokens not containing any of the characters
+ * in @delimiter. A token is the (possibly empty) longest string that does not
+ * contain any of the characters in @delimiters. If @max_tokens is reached, the
+ * remainder is appended to the last token.
+ *
+ * For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a
+ * %NULL-terminated vector containing the three strings "abc", "def",
+ * and "ghi".
+ *
+ * The result if 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
+ * 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_set().
+ *
+ * Note that this function works on bytes not characters, so it can't be used
+ * to delimit UTF-8 strings for anything but ASCII characters.
+ *
+ * Return value: a newly-allocated %NULL-terminated array of strings. Use
+ * g_strfreev() to free it.
+ *
+ * Since: 2.4
+ **/
+gchar **
+g_strsplit_set (const gchar *string,
+ const gchar *delimiters,
+ gint max_tokens)
+{
+ gboolean delim_table[256];
+ GSList *tokens, *list;
+ gint n_tokens;
+ const gchar *s;
+ const gchar *current;
+ gchar *token;
+ gchar **result;
+
+ g_return_val_if_fail (string != NULL, NULL);
+ g_return_val_if_fail (delimiters != NULL, NULL);
+
+ if (max_tokens < 1)
+ max_tokens = G_MAXINT;
+
+ if (*string == '\0')
+ {
+ result = g_new (char *, 1);
+ result[0] = NULL;
+ return result;
+ }
+
+ memset (delim_table, FALSE, sizeof (delim_table));
+ for (s = delimiters; *s != '\0'; ++s)
+ delim_table[*(guchar *)s] = TRUE;
+
+ tokens = NULL;
+ n_tokens = 0;
+
+ s = current = string;
+ while (*s != '\0')
+ {
+ if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens)
+ {
+ gchar *token;
+
+ token = g_strndup (current, s - current);
+ tokens = g_slist_prepend (tokens, token);
+ ++n_tokens;
+
+ current = s + 1;
+ }
+
+ ++s;
+ }
+
+ token = g_strndup (current, s - current);
+ tokens = g_slist_prepend (tokens, token);
+ ++n_tokens;
+
+ result = g_new (gchar *, n_tokens + 1);
+
+ result[n_tokens] = NULL;
+ for (list = tokens; list != NULL; list = list->next)
+ result[--n_tokens] = list->data;
+
+ g_slist_free (tokens);
+
+ return result;
+}
+
+/**
+ * g_strfreev:
+ * @str_array: a %NULL-terminated array of strings to free.
+
+ * Frees a %NULL-terminated array of strings, and the array itself.
+ * If called on a %NULL value, g_strfreev() simply returns.
+ **/
void
g_strfreev (gchar **str_array)
{
/**
* g_strdupv:
- * @str_array: %NULL-terminated array of strings
+ * @str_array: %NULL-terminated array of strings.
*
* Copies %NULL-terminated array of strings. The copy is a deep copy;
* the new array should be freed by first freeing each string, then
* the array itself. g_strfreev() does this for you. If called
* on a %NULL value, g_strdupv() simply returns %NULL.
*
- * Return value: a new %NULL-terminated array of strings
+ * Return value: a new %NULL-terminated array of strings.
**/
gchar**
g_strdupv (gchar **str_array)
if (*str_array)
{
- guint i, len;
- guint separator_len;
+ gint i;
+ gsize len;
+ gsize separator_len;
separator_len = strlen (separator);
/* First part, getting length */
{
gchar *string, *s;
va_list args;
- guint len;
- guint separator_len;
+ gsize len;
+ gsize separator_len;
gchar *ptr;
if (separator == NULL)
return string;
}
+
+
+/**
+ * g_strstr_len:
+ * @haystack: a string.
+ * @haystack_len: the maximum length of @haystack.
+ * @needle: the string to search for.
+ *
+ * Searches the string @haystack for the first occurrence
+ * of the string @needle, limiting the length of the search
+ * to @haystack_len.
+ *
+ * Return value: a pointer to the found occurrence, or
+ * %NULL if not found.
+ **/
+gchar *
+g_strstr_len (const gchar *haystack,
+ gssize haystack_len,
+ const gchar *needle)
+{
+ g_return_val_if_fail (haystack != NULL, NULL);
+ g_return_val_if_fail (needle != NULL, NULL);
+
+ if (haystack_len < 0)
+ return strstr (haystack, needle);
+ else
+ {
+ const gchar *p = haystack;
+ gsize needle_len = strlen (needle);
+ const gchar *end;
+ gsize i;
+
+ if (needle_len == 0)
+ return (gchar *)haystack;
+
+ if (haystack_len < needle_len)
+ return NULL;
+
+ end = haystack + haystack_len - needle_len;
+
+ while (*p && p <= end)
+ {
+ for (i = 0; i < needle_len; i++)
+ if (p[i] != needle[i])
+ goto next;
+
+ return (gchar *)p;
+
+ next:
+ p++;
+ }
+
+ return NULL;
+ }
+}
+
+/**
+ * g_strrstr:
+ * @haystack: a nul-terminated string.
+ * @needle: the nul-terminated string to search for.
+ *
+ * Searches the string @haystack for the last occurrence
+ * of the string @needle.
+ *
+ * Return value: a pointer to the found occurrence, or
+ * %NULL if not found.
+ **/
+gchar *
+g_strrstr (const gchar *haystack,
+ const gchar *needle)
+{
+ gsize i;
+ gsize needle_len;
+ gsize haystack_len;
+ const gchar *p;
+
+ g_return_val_if_fail (haystack != NULL, NULL);
+ g_return_val_if_fail (needle != NULL, NULL);
+
+ needle_len = strlen (needle);
+ haystack_len = strlen (haystack);
+
+ if (needle_len == 0)
+ return (gchar *)haystack;
+
+ if (haystack_len < needle_len)
+ return NULL;
+
+ p = haystack + haystack_len - needle_len;
+
+ while (p >= haystack)
+ {
+ for (i = 0; i < needle_len; i++)
+ if (p[i] != needle[i])
+ goto next;
+
+ return (gchar *)p;
+
+ next:
+ p--;
+ }
+
+ return NULL;
+}
+
+/**
+ * g_strrstr_len:
+ * @haystack: a nul-terminated string.
+ * @haystack_len: the maximum length of @haystack.
+ * @needle: the nul-terminated string to search for.
+ *
+ * Searches the string @haystack for the last occurrence
+ * of the string @needle, limiting the length of the search
+ * to @haystack_len.
+ *
+ * Return value: a pointer to the found occurrence, or
+ * %NULL if not found.
+ **/
+gchar *
+g_strrstr_len (const gchar *haystack,
+ gssize haystack_len,
+ const gchar *needle)
+{
+ g_return_val_if_fail (haystack != NULL, NULL);
+ g_return_val_if_fail (needle != NULL, NULL);
+
+ if (haystack_len < 0)
+ return g_strrstr (haystack, needle);
+ else
+ {
+ gsize needle_len = strlen (needle);
+ const gchar *haystack_max = haystack + haystack_len;
+ const gchar *p = haystack;
+ gsize i;
+
+ while (p < haystack_max && *p)
+ p++;
+
+ if (p < haystack + needle_len)
+ return NULL;
+
+ p -= needle_len;
+
+ while (p >= haystack)
+ {
+ for (i = 0; i < needle_len; i++)
+ if (p[i] != needle[i])
+ goto next;
+
+ return (gchar *)p;
+
+ next:
+ p--;
+ }
+
+ return NULL;
+ }
+}
+
+
+/**
+ * g_str_has_suffix:
+ * @str: a nul-terminated string.
+ * @suffix: the nul-terminated suffix to look for.
+ *
+ * Looks whether the string @str ends with @suffix.
+ *
+ * Return value: %TRUE if @str end with @suffix, %FALSE otherwise.
+ *
+ * Since: 2.2
+ **/
+gboolean
+g_str_has_suffix (const gchar *str,
+ const gchar *suffix)
+{
+ int str_len;
+ int suffix_len;
+
+ g_return_val_if_fail (str != NULL, FALSE);
+ g_return_val_if_fail (suffix != NULL, FALSE);
+
+ str_len = strlen (str);
+ suffix_len = strlen (suffix);
+
+ if (str_len < suffix_len)
+ return FALSE;
+
+ return strcmp (str + str_len - suffix_len, suffix) == 0;
+}
+
+/**
+ * g_str_has_prefix:
+ * @str: a nul-terminated string.
+ * @prefix: the nul-terminated prefix to look for.
+ *
+ * Looks whether the string @str begins with @prefix.
+ *
+ * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise.
+ *
+ * Since: 2.2
+ **/
+gboolean
+g_str_has_prefix (const gchar *str,
+ const gchar *prefix)
+{
+ int str_len;
+ int prefix_len;
+
+ g_return_val_if_fail (str != NULL, FALSE);
+ g_return_val_if_fail (prefix != NULL, FALSE);
+
+ str_len = strlen (str);
+ prefix_len = strlen (prefix);
+
+ if (str_len < prefix_len)
+ return FALSE;
+
+ return strncmp (str, prefix, prefix_len) == 0;
+}
+
+
+/**
+ * g_strip_context:
+ * @msgid: a string
+ * @msgval: another string
+ *
+ * An auxiliary function for gettext() support (see Q_()).
+ *
+ * Return value: @msgval, unless @msgval is identical to @msgid and contains
+ * a '|' character, in which case a pointer to the substring of msgid after
+ * the first '|' character is returned.
+ *
+ * Since: 2.4
+ **/
+G_CONST_RETURN gchar *
+g_strip_context (const gchar *msgid,
+ const gchar *msgval)
+{
+ if (msgval == msgid)
+ {
+ const char *c = strchr (msgid, '|');
+ if (c != NULL)
+ return c + 1;
+ }
+
+ return msgval;
+}
+
+
+/**
+ * g_strv_length:
+ * @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.
+ *
+ * Since: 2.6
+ **/
+guint
+g_strv_length (gchar **str_array)
+{
+ guint i = 0;
+
+ g_return_val_if_fail (str_array != NULL, 0);
+
+ while (str_array[i])
+ ++i;
+
+ return i;
+}
projects / platform / upstream / glib.git / blobdiff