2139 lines
49 KiB
C
2139 lines
49 KiB
C
/* Copyright (C) 1991-1999, 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <ctype.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
#include <wctype.h>
|
|
#include <bits/libc-lock.h>
|
|
#include <locale/localeinfo.h>
|
|
|
|
#ifdef __GNUC__
|
|
# define HAVE_LONGLONG
|
|
# define LONGLONG long long
|
|
#else
|
|
# define LONGLONG long
|
|
#endif
|
|
|
|
/* Determine whether we have to handle `long long' at all. */
|
|
#if LONG_MAX == LONG_LONG_MAX
|
|
# define need_longlong 0
|
|
#else
|
|
# define need_longlong 1
|
|
#endif
|
|
|
|
/* Determine whether we have to handle `long'. */
|
|
#if INT_MAX == LONG_MAX
|
|
# define need_long 0
|
|
#else
|
|
# define need_long 1
|
|
#endif
|
|
|
|
/* Those are flags in the conversion format. */
|
|
#define LONG 0x001 /* l: long or double */
|
|
#define LONGDBL 0x002 /* L: long long or long double */
|
|
#define SHORT 0x004 /* h: short */
|
|
#define SUPPRESS 0x008 /* *: suppress assignment */
|
|
#define POINTER 0x010 /* weird %p pointer (`fake hex') */
|
|
#define NOSKIP 0x020 /* do not skip blanks */
|
|
#define WIDTH 0x040 /* width was given */
|
|
#define GROUP 0x080 /* ': group numbers */
|
|
#define MALLOC 0x100 /* a: malloc strings */
|
|
#define CHAR 0x200 /* hh: char */
|
|
#define I18N 0x400 /* I: use locale's digits */
|
|
|
|
|
|
#ifdef USE_IN_LIBIO
|
|
# include <libioP.h>
|
|
# include <libio.h>
|
|
|
|
# undef va_list
|
|
# define va_list _IO_va_list
|
|
|
|
# ifdef COMPILE_WPRINTF
|
|
# define ungetc(c, s) ((void) (c == WEOF \
|
|
|| (--read_in, \
|
|
_IO_sputbackwc (s, c))))
|
|
# define inchar() (c == WEOF ? WEOF \
|
|
: ((c = _IO_getwc_unlocked (s)), \
|
|
(void) (c != WEOF && ++read_in), c))
|
|
|
|
# define MEMCPY(d, s, n) wmemcpy (d, s, n)
|
|
# define ISSPACE(Ch) iswspace (Ch)
|
|
# define ISDIGIT(Ch) iswdigit (Ch)
|
|
# define ISXDIGIT(Ch) iswxdigit (Ch)
|
|
# define TOLOWER(Ch) towlower (Ch)
|
|
# define ORIENT if (s->_vtable_offset == 0 && _IO_fwide (s, 1) != 1)\
|
|
return EOF
|
|
# define __strtoll_internal __wcstoll_internal
|
|
# define __strtoull_internal __wcstoull_internal
|
|
# define __strtol_internal __wcstol_internal
|
|
# define __strtoul_internal __wcstoul_internal
|
|
# define __strtold_internal __wcstold_internal
|
|
# define __strtod_internal __wcstod_internal
|
|
# define __strtof_internal __wcstof_internal
|
|
|
|
# define L_(Str) L##Str
|
|
# define CHAR_T wchar_t
|
|
# define UCHAR_T unsigned int
|
|
# define WINT_T wint_t
|
|
# else
|
|
# define ungetc(c, s) ((void) ((int) c == EOF \
|
|
|| (--read_in, \
|
|
_IO_sputbackc (s, (unsigned char) c))))
|
|
# define inchar() (c == EOF ? EOF \
|
|
: ((c = _IO_getc_unlocked (s)), \
|
|
(void) (c != EOF && ++read_in), c))
|
|
# define MEMCPY(d, s, n) memcpy (d, s, n)
|
|
# define ISSPACE(Ch) isspace (Ch)
|
|
# define ISDIGIT(Ch) isdigit (Ch)
|
|
# define ISXDIGIT(Ch) isxdigit (Ch)
|
|
# define TOLOWER(Ch) tolower (Ch)
|
|
# define ORIENT if (_IO_fwide (s, -1) != -1) return EOF
|
|
|
|
# define L_(Str) Str
|
|
# define CHAR_T char
|
|
# define UCHAR_T unsigned char
|
|
# define WINT_T int
|
|
# endif
|
|
|
|
# define encode_error() do { \
|
|
if (errp != NULL) *errp |= 4; \
|
|
_IO_funlockfile (s); \
|
|
__libc_cleanup_end (0); \
|
|
__set_errno (EILSEQ); \
|
|
return done; \
|
|
} while (0)
|
|
# define conv_error() do { \
|
|
if (errp != NULL) *errp |= 2; \
|
|
_IO_funlockfile (s); \
|
|
__libc_cleanup_end (0); \
|
|
return done; \
|
|
} while (0)
|
|
# define input_error() do { \
|
|
_IO_funlockfile (s); \
|
|
if (errp != NULL) *errp |= 1; \
|
|
__libc_cleanup_end (0); \
|
|
return done ?: EOF; \
|
|
} while (0)
|
|
# define memory_error() do { \
|
|
_IO_funlockfile (s); \
|
|
__set_errno (ENOMEM); \
|
|
__libc_cleanup_end (0); \
|
|
return EOF; \
|
|
} while (0)
|
|
# define ARGCHECK(s, format) \
|
|
do \
|
|
{ \
|
|
/* Check file argument for consistence. */ \
|
|
CHECK_FILE (s, EOF); \
|
|
if (s->_flags & _IO_NO_READS) \
|
|
{ \
|
|
__set_errno (EBADF); \
|
|
return EOF; \
|
|
} \
|
|
else if (format == NULL) \
|
|
{ \
|
|
MAYBE_SET_EINVAL; \
|
|
return EOF; \
|
|
} \
|
|
} while (0)
|
|
# define LOCK_STREAM(S) \
|
|
__libc_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, (S)); \
|
|
_IO_flockfile (S)
|
|
# define UNLOCK_STREAM(S) \
|
|
_IO_funlockfile (S); \
|
|
__libc_cleanup_region_end (0)
|
|
#else
|
|
# define ungetc(c, s) ((void) (c != EOF && --read_in), ungetc (c, s))
|
|
# define inchar() (c == EOF ? EOF \
|
|
: ((c = getc (s)), (void) (c != EOF && ++read_in), c))
|
|
# define MEMCPY(d, s, n) memcpy (d, s, n)
|
|
# define ISSPACE(Ch) isspace (Ch)
|
|
# define ISDIGIT(Ch) isdigit (Ch)
|
|
# define ISXDIGIT(Ch) isxdigit (Ch)
|
|
# define TOLOWER(Ch) tolower (Ch)
|
|
|
|
# define L_(Str) Str
|
|
# define CHAR_T char
|
|
# define UCHAR_T unsigned char
|
|
# define WINT_T int
|
|
|
|
# define encode_error() do { \
|
|
funlockfile (s); \
|
|
__set_errno (EILSEQ); \
|
|
return done; \
|
|
} while (0)
|
|
# define conv_error() do { \
|
|
funlockfile (s); \
|
|
return done; \
|
|
} while (0)
|
|
# define input_error() do { \
|
|
funlockfile (s); \
|
|
return done ?: EOF; \
|
|
} while (0)
|
|
# define memory_error() do { \
|
|
funlockfile (s); \
|
|
__set_errno (ENOMEM); \
|
|
return EOF; \
|
|
} while (0)
|
|
# define ARGCHECK(s, format) \
|
|
do \
|
|
{ \
|
|
/* Check file argument for consistence. */ \
|
|
if (!__validfp (s) || !s->__mode.__read) \
|
|
{ \
|
|
__set_errno (EBADF); \
|
|
return EOF; \
|
|
} \
|
|
else if (format == NULL) \
|
|
{ \
|
|
__set_errno (EINVAL); \
|
|
return EOF; \
|
|
} \
|
|
} while (0)
|
|
#if 1
|
|
/* XXX For now !!! */
|
|
# define flockfile(S) /* nothing */
|
|
# define funlockfile(S) /* nothing */
|
|
# define LOCK_STREAM(S)
|
|
# define UNLOCK_STREAM(S)
|
|
#else
|
|
# define LOCK_STREAM(S) \
|
|
__libc_cleanup_region_start (&__funlockfile, (S)); \
|
|
__flockfile (S)
|
|
# define UNLOCK_STREAM(S) \
|
|
__funlockfile (S); \
|
|
__libc_cleanup_region_end (0)
|
|
#endif
|
|
#endif
|
|
|
|
|
|
/* Read formatted input from S according to the format string
|
|
FORMAT, using the argument list in ARG.
|
|
Return the number of assignments made, or -1 for an input error. */
|
|
#ifdef USE_IN_LIBIO
|
|
# ifdef COMPILE_WPRINTF
|
|
int
|
|
_IO_vfwscanf (s, format, argptr, errp)
|
|
_IO_FILE *s;
|
|
const wchar_t *format;
|
|
_IO_va_list argptr;
|
|
int *errp;
|
|
# else
|
|
int
|
|
_IO_vfscanf (s, format, argptr, errp)
|
|
_IO_FILE *s;
|
|
const char *format;
|
|
_IO_va_list argptr;
|
|
int *errp;
|
|
# endif
|
|
#else
|
|
int
|
|
__vfscanf (FILE *s, const char *format, va_list argptr)
|
|
#endif
|
|
{
|
|
va_list arg;
|
|
register const CHAR_T *f = format;
|
|
register UCHAR_T fc; /* Current character of the format. */
|
|
register size_t done = 0; /* Assignments done. */
|
|
register size_t read_in = 0; /* Chars read in. */
|
|
register WINT_T c = 0; /* Last char read. */
|
|
register int width; /* Maximum field width. */
|
|
register int flags; /* Modifiers for current format element. */
|
|
|
|
/* Status for reading F-P nums. */
|
|
char got_dot, got_e, negative;
|
|
/* If a [...] is a [^...]. */
|
|
CHAR_T not_in;
|
|
#define exp_char not_in
|
|
/* Base for integral numbers. */
|
|
int base;
|
|
/* Signedness for integral numbers. */
|
|
int number_signed;
|
|
#define is_hexa number_signed
|
|
/* Decimal point character. */
|
|
wchar_t decimal;
|
|
/* The thousands character of the current locale. */
|
|
wchar_t thousands;
|
|
/* State for the conversions. */
|
|
mbstate_t state;
|
|
/* Integral holding variables. */
|
|
union
|
|
{
|
|
long long int q;
|
|
unsigned long long int uq;
|
|
long int l;
|
|
unsigned long int ul;
|
|
} num;
|
|
/* Character-buffer pointer. */
|
|
char *str = NULL;
|
|
wchar_t *wstr = NULL;
|
|
char **strptr = NULL;
|
|
size_t strsize = 0;
|
|
/* We must not react on white spaces immediately because they can
|
|
possibly be matched even if in the input stream no character is
|
|
available anymore. */
|
|
int skip_space = 0;
|
|
/* Nonzero if we are reading a pointer. */
|
|
int read_pointer;
|
|
/* Workspace. */
|
|
CHAR_T *tw; /* Temporary pointer. */
|
|
CHAR_T *wp = NULL; /* Workspace. */
|
|
size_t wpmax = 0; /* Maximal size of workspace. */
|
|
size_t wpsize; /* Currently used bytes in workspace. */
|
|
#define ADDW(Ch) \
|
|
do \
|
|
{ \
|
|
if (wpsize == wpmax) \
|
|
{ \
|
|
CHAR_T *old = wp; \
|
|
wpmax = UCHAR_MAX > 2 * wpmax ? UCHAR_MAX : 2 * wpmax; \
|
|
wp = (CHAR_T *) alloca (wpmax * sizeof (wchar_t)); \
|
|
if (old != NULL) \
|
|
MEMCPY (wp, old, wpsize); \
|
|
} \
|
|
wp[wpsize++] = (Ch); \
|
|
} \
|
|
while (0)
|
|
|
|
#ifdef __va_copy
|
|
__va_copy (arg, argptr);
|
|
#else
|
|
arg = (va_list) argptr;
|
|
#endif
|
|
|
|
#ifdef ORIENT
|
|
ORIENT;
|
|
#endif
|
|
|
|
ARGCHECK (s, format);
|
|
|
|
/* Figure out the decimal point character. */
|
|
memset (&state, '\0', sizeof (state));
|
|
if (__mbrtowc (&decimal, _NL_CURRENT (LC_NUMERIC, DECIMAL_POINT),
|
|
strlen (_NL_CURRENT (LC_NUMERIC, DECIMAL_POINT)), &state)
|
|
<= 0)
|
|
decimal = (wchar_t) *_NL_CURRENT (LC_NUMERIC, DECIMAL_POINT);
|
|
/* Figure out the thousands separator character. */
|
|
memset (&state, '\0', sizeof (state));
|
|
if (__mbrtowc (&thousands, _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
|
|
strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP)),
|
|
&state) <= 0)
|
|
thousands = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
|
|
|
|
/* Lock the stream. */
|
|
LOCK_STREAM (s);
|
|
|
|
|
|
#ifndef COMPILE_WPRINTF
|
|
/* From now on we use `state' to convert the format string. */
|
|
memset (&state, '\0', sizeof (state));
|
|
#endif
|
|
|
|
/* Run through the format string. */
|
|
while (*f != '\0')
|
|
{
|
|
unsigned int argpos;
|
|
/* Extract the next argument, which is of type TYPE.
|
|
For a %N$... spec, this is the Nth argument from the beginning;
|
|
otherwise it is the next argument after the state now in ARG. */
|
|
#ifdef __va_copy
|
|
# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \
|
|
({ unsigned int pos = argpos; \
|
|
va_list arg; \
|
|
__va_copy (arg, argptr); \
|
|
while (--pos > 0) \
|
|
(void) va_arg (arg, void *); \
|
|
va_arg (arg, type); \
|
|
}))
|
|
#else
|
|
# if 0
|
|
/* XXX Possible optimization. */
|
|
# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \
|
|
({ va_list arg = (va_list) argptr; \
|
|
arg = (va_list) ((char *) arg \
|
|
+ (argpos - 1) \
|
|
* __va_rounded_size (void *)); \
|
|
va_arg (arg, type); \
|
|
}))
|
|
# else
|
|
# define ARG(type) (argpos == 0 ? va_arg (arg, type) : \
|
|
({ unsigned int pos = argpos; \
|
|
va_list arg = (va_list) argptr; \
|
|
while (--pos > 0) \
|
|
(void) va_arg (arg, void *); \
|
|
va_arg (arg, type); \
|
|
}))
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef COMPILE_WPRINTF
|
|
if (!isascii (*f))
|
|
{
|
|
/* Non-ASCII, may be a multibyte. */
|
|
int len = __mbrlen (f, strlen (f), &state);
|
|
if (len > 0)
|
|
{
|
|
do
|
|
{
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
else if (c != *f++)
|
|
{
|
|
ungetc (c, s);
|
|
conv_error ();
|
|
}
|
|
}
|
|
while (--len > 0);
|
|
continue;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
fc = *f++;
|
|
if (fc != '%')
|
|
{
|
|
/* Remember to skip spaces. */
|
|
if (ISSPACE (fc))
|
|
{
|
|
skip_space = 1;
|
|
continue;
|
|
}
|
|
|
|
/* Read a character. */
|
|
c = inchar ();
|
|
|
|
/* Characters other than format specs must just match. */
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
/* We saw white space char as the last character in the format
|
|
string. Now it's time to skip all leading white space. */
|
|
if (skip_space)
|
|
{
|
|
while (ISSPACE (c))
|
|
if (inchar () == EOF && errno == EINTR)
|
|
conv_error ();
|
|
skip_space = 0;
|
|
}
|
|
|
|
if (c != fc)
|
|
{
|
|
ungetc (c, s);
|
|
conv_error ();
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
/* This is the start of the conversion string. */
|
|
flags = 0;
|
|
|
|
/* Not yet decided whether we read a pointer or not. */
|
|
read_pointer = 0;
|
|
|
|
/* Initialize state of modifiers. */
|
|
argpos = 0;
|
|
|
|
/* Prepare temporary buffer. */
|
|
wpsize = 0;
|
|
|
|
/* Check for a positional parameter specification. */
|
|
if (ISDIGIT (*f))
|
|
{
|
|
argpos = *f++ - L_('0');
|
|
while (ISDIGIT (*f))
|
|
argpos = argpos * 10 + (*f++ - L_('0'));
|
|
if (*f == L_('$'))
|
|
++f;
|
|
else
|
|
{
|
|
/* Oops; that was actually the field width. */
|
|
width = argpos;
|
|
flags |= WIDTH;
|
|
argpos = 0;
|
|
goto got_width;
|
|
}
|
|
}
|
|
|
|
/* Check for the assignment-suppressing, the number grouping flag,
|
|
and the signal to use the locale's digit representation. */
|
|
while (*f == L_('*') || *f == L_('\'') || *f == L_('I'))
|
|
switch (*f++)
|
|
{
|
|
case L_('*'):
|
|
flags |= SUPPRESS;
|
|
break;
|
|
case L_('\''):
|
|
flags |= GROUP;
|
|
break;
|
|
case L_('I'):
|
|
flags |= I18N;
|
|
break;
|
|
}
|
|
|
|
/* We have seen width. */
|
|
if (ISDIGIT (*f))
|
|
flags |= WIDTH;
|
|
|
|
/* Find the maximum field width. */
|
|
width = 0;
|
|
while (ISDIGIT (*f))
|
|
{
|
|
width *= 10;
|
|
width += *f++ - L_('0');
|
|
}
|
|
got_width:
|
|
if (width == 0)
|
|
width = -1;
|
|
|
|
/* Check for type modifiers. */
|
|
switch (*f++)
|
|
{
|
|
case L_('h'):
|
|
/* ints are short ints or chars. */
|
|
if (*f == L_('h'))
|
|
{
|
|
++f;
|
|
flags |= CHAR;
|
|
}
|
|
else
|
|
flags |= SHORT;
|
|
break;
|
|
case L_('l'):
|
|
if (*f == L_('l'))
|
|
{
|
|
/* A double `l' is equivalent to an `L'. */
|
|
++f;
|
|
flags |= LONGDBL | LONG;
|
|
}
|
|
else
|
|
/* ints are long ints. */
|
|
flags |= LONG;
|
|
break;
|
|
case L_('q'):
|
|
case L_('L'):
|
|
/* doubles are long doubles, and ints are long long ints. */
|
|
flags |= LONGDBL | LONG;
|
|
break;
|
|
case L_('a'):
|
|
/* The `a' is used as a flag only if followed by `s', `S' or
|
|
`['. */
|
|
if (*f != L_('s') && *f != L_('S') && *f != L_('['))
|
|
{
|
|
--f;
|
|
break;
|
|
}
|
|
/* String conversions (%s, %[) take a `char **'
|
|
arg and fill it in with a malloc'd pointer. */
|
|
flags |= MALLOC;
|
|
break;
|
|
case L_('z'):
|
|
if (need_longlong && sizeof (size_t) > sizeof (unsigned long int))
|
|
flags |= LONGDBL;
|
|
else if (sizeof (size_t) > sizeof (unsigned int))
|
|
flags |= LONG;
|
|
break;
|
|
case L_('j'):
|
|
if (need_longlong && sizeof (uintmax_t) > sizeof (unsigned long int))
|
|
flags |= LONGDBL;
|
|
else if (sizeof (uintmax_t) > sizeof (unsigned int))
|
|
flags |= LONG;
|
|
break;
|
|
case L_('t'):
|
|
if (need_longlong && sizeof (ptrdiff_t) > sizeof (long int))
|
|
flags |= LONGDBL;
|
|
else if (sizeof (ptrdiff_t) > sizeof (int))
|
|
flags |= LONG;
|
|
break;
|
|
default:
|
|
/* Not a recognized modifier. Backup. */
|
|
--f;
|
|
break;
|
|
}
|
|
|
|
/* End of the format string? */
|
|
if (*f == L_('\0'))
|
|
conv_error ();
|
|
|
|
/* Find the conversion specifier. */
|
|
fc = *f++;
|
|
if (skip_space || (fc != L_('[') && fc != L_('c')
|
|
&& fc != L_('C') && fc != L_('n')))
|
|
{
|
|
/* Eat whitespace. */
|
|
int save_errno = errno;
|
|
errno = 0;
|
|
do
|
|
if (inchar () == EOF && errno == EINTR)
|
|
input_error ();
|
|
while (ISSPACE (c));
|
|
errno = save_errno;
|
|
ungetc (c, s);
|
|
skip_space = 0;
|
|
}
|
|
|
|
switch (fc)
|
|
{
|
|
case L_('%'): /* Must match a literal '%'. */
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
if (c != fc)
|
|
{
|
|
ungetc (c, s);
|
|
conv_error ();
|
|
}
|
|
break;
|
|
|
|
case L_('n'): /* Answer number of assignments done. */
|
|
/* Corrigendum 1 to ISO C 1990 describes the allowed flags
|
|
with the 'n' conversion specifier. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
/* Don't count the read-ahead. */
|
|
if (need_longlong && (flags & LONGDBL))
|
|
*ARG (long long int *) = read_in;
|
|
else if (need_long && (flags & LONG))
|
|
*ARG (long int *) = read_in;
|
|
else if (flags & SHORT)
|
|
*ARG (short int *) = read_in;
|
|
else if (!(flags & CHAR))
|
|
*ARG (int *) = read_in;
|
|
else
|
|
*ARG (char *) = read_in;
|
|
|
|
#ifdef NO_BUG_IN_ISO_C_CORRIGENDUM_1
|
|
/* We have a severe problem here. The ISO C standard
|
|
contradicts itself in explaining the effect of the %n
|
|
format in `scanf'. While in ISO C:1990 and the ISO C
|
|
Amendement 1:1995 the result is described as
|
|
|
|
Execution of a %n directive does not effect the
|
|
assignment count returned at the completion of
|
|
execution of the f(w)scanf function.
|
|
|
|
in ISO C Corrigendum 1:1994 the following was added:
|
|
|
|
Subclause 7.9.6.2
|
|
Add the following fourth example:
|
|
In:
|
|
#include <stdio.h>
|
|
int d1, d2, n1, n2, i;
|
|
i = sscanf("123", "%d%n%n%d", &d1, &n1, &n2, &d2);
|
|
the value 123 is assigned to d1 and the value3 to n1.
|
|
Because %n can never get an input failure the value
|
|
of 3 is also assigned to n2. The value of d2 is not
|
|
affected. The value 3 is assigned to i.
|
|
|
|
We go for now with the historically correct code from ISO C,
|
|
i.e., we don't count the %n assignments. When it ever
|
|
should proof to be wrong just remove the #ifdef above. */
|
|
++done;
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
case L_('c'): /* Match characters. */
|
|
if ((flags & LONG) == 0)
|
|
{
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
str = ARG (char *);
|
|
if (str == NULL)
|
|
conv_error ();
|
|
}
|
|
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
if (width == -1)
|
|
width = 1;
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* We have to convert the wide character(s) into multibyte
|
|
characters and store the result. */
|
|
memset (&state, '\0', sizeof (state));
|
|
|
|
do
|
|
{
|
|
size_t n;
|
|
|
|
n = wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, &state);
|
|
if (n == (size_t) -1)
|
|
/* No valid wide character. */
|
|
input_error ();
|
|
|
|
/* Increment the output pointer. Even if we don't
|
|
write anything. */
|
|
str += n;
|
|
}
|
|
while (--width > 0 && inchar () != EOF);
|
|
#else
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
do
|
|
*str++ = c;
|
|
while (--width > 0 && inchar () != EOF);
|
|
}
|
|
else
|
|
while (--width > 0 && inchar () != EOF);
|
|
#endif
|
|
|
|
if (!(flags & SUPPRESS))
|
|
++done;
|
|
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
case L_('C'):
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
wstr = ARG (wchar_t *);
|
|
if (str == NULL)
|
|
conv_error ();
|
|
}
|
|
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* Just store the incoming wide characters. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
do
|
|
*wstr++ = c;
|
|
while (--width > 0 && inchar () != EOF);
|
|
}
|
|
else
|
|
while (--width > 0 && inchar () != EOF);
|
|
#else
|
|
{
|
|
/* We have to convert the multibyte input sequence to wide
|
|
characters. */
|
|
char buf[MB_LEN_MAX];
|
|
mbstate_t cstate;
|
|
|
|
memset (&cstate, '\0', sizeof (cstate));
|
|
|
|
do
|
|
{
|
|
size_t cnt;
|
|
|
|
/* This is what we present the mbrtowc function first. */
|
|
buf[0] = c;
|
|
cnt = 1;
|
|
|
|
while (1)
|
|
{
|
|
size_t n;
|
|
|
|
n = __mbrtowc (!(flags & SUPPRESS) ? wstr : NULL,
|
|
buf, cnt, &cstate);
|
|
|
|
if (n == (size_t) -2)
|
|
{
|
|
/* Possibly correct character, just not enough
|
|
input. */
|
|
assert (cnt < MB_CUR_MAX);
|
|
|
|
if (inchar () == EOF)
|
|
encode_error ();
|
|
|
|
buf[cnt++] = c;
|
|
continue;
|
|
}
|
|
|
|
if (n != cnt)
|
|
encode_error ();
|
|
|
|
/* We have a match. */
|
|
break;
|
|
}
|
|
|
|
/* Advance the result pointer. */
|
|
++wstr;
|
|
}
|
|
while (--width > 0 && inchar () != EOF);
|
|
}
|
|
#endif
|
|
|
|
if (!(flags & SUPPRESS))
|
|
++done;
|
|
|
|
break;
|
|
|
|
case L_('s'): /* Read a string. */
|
|
if (!(flags & LONG))
|
|
{
|
|
#define STRING_ARG(Str, Type) \
|
|
do if (!(flags & SUPPRESS)) \
|
|
{ \
|
|
if (flags & MALLOC) \
|
|
{ \
|
|
/* The string is to be stored in a malloc'd buffer. */ \
|
|
strptr = ARG (char **); \
|
|
if (strptr == NULL) \
|
|
conv_error (); \
|
|
/* Allocate an initial buffer. */ \
|
|
strsize = 100; \
|
|
*strptr = (char *) malloc (strsize * sizeof (Type)); \
|
|
Str = (Type *) *strptr; \
|
|
} \
|
|
else \
|
|
Str = ARG (Type *); \
|
|
if (Str == NULL) \
|
|
conv_error (); \
|
|
} while (0)
|
|
STRING_ARG (str, char);
|
|
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
memset (&state, '\0', sizeof (state));
|
|
#endif
|
|
|
|
do
|
|
{
|
|
if (ISSPACE (c))
|
|
{
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* This is quite complicated. We have to convert the
|
|
wide characters into multibyte characters and then
|
|
store them. */
|
|
{
|
|
size_t n;
|
|
|
|
if (!(flags & SUPPRESS) && (flags & MALLOC)
|
|
&& str + MB_CUR_MAX >= *strptr + strsize)
|
|
{
|
|
/* We have to enlarge the buffer if the `a' flag
|
|
was given. */
|
|
str = (char *) realloc (*strptr, strsize * 2);
|
|
if (str == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
str = (char *) realloc (*strptr, strsize + 1);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting,
|
|
so at least we don't skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
|
|
n = wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, &state);
|
|
if (n == (size_t) -1)
|
|
encode_error ();
|
|
|
|
assert (n <= MB_CUR_MAX);
|
|
str += n;
|
|
}
|
|
#else
|
|
/* This is easy. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*str++ = c;
|
|
if ((flags & MALLOC)
|
|
&& (char *) str == *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr, 2 * strsize);
|
|
if (str == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
str = (char *) realloc (*strptr, strsize + 1);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting,
|
|
so at least we don't skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
while ((width <= 0 || --width > 0) && inchar () != EOF);
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
#ifdef COMPILE_WPRINTF
|
|
/* We have to emit the code to get into the intial
|
|
state. */
|
|
char buf[MB_LEN_MAX];
|
|
size_t n = wcrtomb (buf, L'\0', &state);
|
|
if (n > 0 && (flags & MALLOC)
|
|
&& str + n >= *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr,
|
|
(str + n + 1) - *strptr);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str = ((char *) *strptr) + strsize;
|
|
strsize = (str + n + 1) - *strptr;
|
|
}
|
|
}
|
|
|
|
str = __mempcpy (str, buf, n);
|
|
#endif
|
|
*str = '\0';
|
|
|
|
if ((flags & MALLOC) && str - *strptr != strsize)
|
|
{
|
|
char *cp = (char *) realloc (*strptr, str - *strptr);
|
|
if (cp != NULL)
|
|
*strptr = cp;
|
|
}
|
|
|
|
++done;
|
|
}
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
|
|
case L_('S'):
|
|
{
|
|
#ifndef COMPILE_WPRINTF
|
|
mbstate_t cstate;
|
|
#endif
|
|
|
|
/* Wide character string. */
|
|
STRING_ARG (wstr, wchar_t);
|
|
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
#ifndef COMPILE_WPRINTF
|
|
memset (&cstate, '\0', sizeof (cstate));
|
|
#endif
|
|
|
|
do
|
|
{
|
|
if (ISSPACE (c))
|
|
{
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* This is easy. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*wstr++ = c;
|
|
if ((flags & MALLOC)
|
|
&& wstr == (wchar_t *) *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(2 * strsize)
|
|
* sizeof (wchar_t));
|
|
if (wstr == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(strsize
|
|
+ sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
((wchar_t *) (*strptr))[strsize - 1] = L'\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
{
|
|
char buf[MB_LEN_MAX];
|
|
size_t cnt;
|
|
|
|
buf[0] = c;
|
|
cnt = 1;
|
|
|
|
while (1)
|
|
{
|
|
size_t n;
|
|
|
|
n = __mbrtowc (!(flags & SUPPRESS) ? wstr : NULL,
|
|
buf, cnt, &cstate);
|
|
|
|
if (n == (size_t) -2)
|
|
{
|
|
/* Possibly correct character, just not enough
|
|
input. */
|
|
assert (cnt < MB_CUR_MAX);
|
|
|
|
if (inchar () == EOF)
|
|
encode_error ();
|
|
|
|
buf[cnt++] = c;
|
|
continue;
|
|
}
|
|
|
|
if (n != cnt)
|
|
encode_error ();
|
|
|
|
/* We have a match. */
|
|
break;
|
|
}
|
|
|
|
if (!(flags & SUPPRESS) && (flags & MALLOC)
|
|
&& wstr == (wchar_t *) *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(2 * strsize
|
|
* sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch effort. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
((strsize + 1)
|
|
* sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting, so at
|
|
least we don't skip any input. */
|
|
((wchar_t *) (*strptr))[strsize - 1] = L'\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
while ((width <= 0 || --width > 0) && inchar () != EOF);
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*wstr++ = L'\0';
|
|
|
|
if ((flags & MALLOC) && wstr - (wchar_t *) *strptr != strsize)
|
|
{
|
|
wchar_t *cp = (wchar_t *) realloc (*strptr,
|
|
((wstr
|
|
- (wchar_t *) *strptr)
|
|
* sizeof(wchar_t)));
|
|
if (cp != NULL)
|
|
*strptr = (char *) cp;
|
|
}
|
|
|
|
++done;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case L_('x'): /* Hexadecimal integer. */
|
|
case L_('X'): /* Ditto. */
|
|
base = 16;
|
|
number_signed = 0;
|
|
goto number;
|
|
|
|
case L_('o'): /* Octal integer. */
|
|
base = 8;
|
|
number_signed = 0;
|
|
goto number;
|
|
|
|
case L_('u'): /* Unsigned decimal integer. */
|
|
base = 10;
|
|
number_signed = 0;
|
|
goto number;
|
|
|
|
case L_('d'): /* Signed decimal integer. */
|
|
base = 10;
|
|
number_signed = 1;
|
|
goto number;
|
|
|
|
case L_('i'): /* Generic number. */
|
|
base = 0;
|
|
number_signed = 1;
|
|
|
|
number:
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
/* Check for a sign. */
|
|
if (c == L_('-') || c == L_('+'))
|
|
{
|
|
ADDW (c);
|
|
if (width > 0)
|
|
--width;
|
|
c = inchar ();
|
|
}
|
|
|
|
/* Look for a leading indication of base. */
|
|
if (width != 0 && c == L_('0'))
|
|
{
|
|
if (width > 0)
|
|
--width;
|
|
|
|
ADDW (c);
|
|
c = inchar ();
|
|
|
|
if (width != 0 && TOLOWER (c) == L_('x'))
|
|
{
|
|
if (base == 0)
|
|
base = 16;
|
|
if (base == 16)
|
|
{
|
|
if (width > 0)
|
|
--width;
|
|
c = inchar ();
|
|
}
|
|
}
|
|
else if (base == 0)
|
|
base = 8;
|
|
}
|
|
|
|
if (base == 0)
|
|
base = 10;
|
|
|
|
if (base == 10 && (flags & I18N) != 0)
|
|
{
|
|
int from_level;
|
|
int to_level;
|
|
#ifdef COMPILE_WPRINTF
|
|
const wchar_t *wcdigits[10];
|
|
#else
|
|
const char *mbdigits[10];
|
|
#endif
|
|
int n;
|
|
|
|
from_level = 0;
|
|
#ifdef COMPILE_WPRINTF
|
|
to_level = _NL_CURRENT_WORD (LC_CTYPE,
|
|
_NL_CTYPE_INDIGITS_WC_LEN) - 1;
|
|
#else
|
|
to_level = _NL_CURRENT_WORD (LC_CTYPE,
|
|
_NL_CTYPE_INDIGITS_MB_LEN) - 1;
|
|
#endif
|
|
|
|
/* In this round we get the pointer to the digit strings
|
|
and also perform the first round of comparisons. */
|
|
for (n = 0; n < 10; ++n)
|
|
{
|
|
/* Get the string for the digits with value N. */
|
|
#ifdef COMPILE_WPRINTF
|
|
wcdigits[n] = (const wchar_t *)
|
|
_NL_CURRENT (LC_CTYPE, _NL_CTYPE_INDIGITS0_WC + n);
|
|
if (c == *wcdigits[n])
|
|
break;
|
|
|
|
/* Advance the pointer to the next string. */
|
|
++wcdigits[n];
|
|
#else
|
|
size_t dlen;
|
|
size_t dcnt;
|
|
|
|
mbdigits[n] = _NL_CURRENT (LC_CTYPE,
|
|
_NL_CTYPE_INDIGITS0_MB + n);
|
|
dlen = strlen (mbdigits[n]);
|
|
|
|
dcnt = 0;
|
|
do
|
|
{
|
|
if (c != mbdigits[n][dcnt])
|
|
break;
|
|
c = inchar ();
|
|
}
|
|
while (--dcnt > 0);
|
|
|
|
if (dcnt == 0)
|
|
/* We found it. */
|
|
break;
|
|
|
|
/* Advance the pointer to the next string. */
|
|
mbdigits[n] += dlen + 1;
|
|
#endif
|
|
}
|
|
|
|
if (n == 10)
|
|
{
|
|
/*Have not yet found the digit. */
|
|
while (++from_level <= to_level)
|
|
{
|
|
/* Search all ten digits of this level. */
|
|
for (n = 0; n < 10; ++n)
|
|
{
|
|
#ifdef COMPILE_WPRINTF
|
|
if (c == *wcdigits[n])
|
|
break;
|
|
|
|
/* Advance the pointer to the next string. */
|
|
++wcdigits[n];
|
|
#else
|
|
size_t dlen = strlen (mbdigits[n]);
|
|
size_t dcnt;
|
|
|
|
dcnt = 0;
|
|
do
|
|
{
|
|
if (c != mbdigits[n][dcnt])
|
|
break;
|
|
c = inchar ();
|
|
}
|
|
while (--dcnt > 0);
|
|
|
|
if (dcnt == 0)
|
|
/* We found it. */
|
|
break;
|
|
|
|
/* Advance the pointer to the next string. */
|
|
mbdigits[n] += dlen + 1;
|
|
#endif
|
|
}
|
|
|
|
if (n < 10)
|
|
/* Found it. */
|
|
break;
|
|
|
|
/* Next level. */
|
|
++from_level;
|
|
}
|
|
}
|
|
|
|
if (n == 10)
|
|
{
|
|
/* Haven't found anything. Push the last character back
|
|
and return an error. */
|
|
ungetc (c, s);
|
|
input_error ();
|
|
}
|
|
|
|
ADDW (L_('0') + n);
|
|
}
|
|
else
|
|
/* Read the number into workspace. */
|
|
while (c != EOF && width != 0)
|
|
{
|
|
if (base == 16 ? !ISXDIGIT (c) :
|
|
((!ISDIGIT (c) || c - L_('0') >= base) &&
|
|
!((flags & GROUP) && base == 10 && c == thousands)))
|
|
break;
|
|
ADDW (c);
|
|
if (width > 0)
|
|
--width;
|
|
|
|
c = inchar ();
|
|
}
|
|
|
|
if (wpsize == 0
|
|
|| (wpsize == 1 && (wp[0] == L_('+') || wp[0] == L_('-'))))
|
|
{
|
|
/* There was no number. If we are supposed to read a pointer
|
|
we must recognize "(nil)" as well. */
|
|
if (wpsize == 0 && read_pointer && (width < 0 || width >= 0)
|
|
&& c == '('
|
|
&& TOLOWER (inchar ()) == L_('n')
|
|
&& TOLOWER (inchar ()) == L_('i')
|
|
&& TOLOWER (inchar ()) == L_('l')
|
|
&& inchar () == L_(')'))
|
|
/* We must produce the value of a NULL pointer. A single
|
|
'0' digit is enough. */
|
|
ADDW (L_('0'));
|
|
else
|
|
{
|
|
/* The last read character is not part of the number
|
|
anymore. */
|
|
ungetc (c, s);
|
|
|
|
conv_error ();
|
|
}
|
|
}
|
|
else
|
|
/* The just read character is not part of the number anymore. */
|
|
ungetc (c, s);
|
|
|
|
/* Convert the number. */
|
|
ADDW (L_('\0'));
|
|
if (need_longlong && (flags & LONGDBL))
|
|
{
|
|
if (number_signed)
|
|
num.q = __strtoll_internal (wp, &tw, base, flags & GROUP);
|
|
else
|
|
num.uq = __strtoull_internal (wp, &tw, base, flags & GROUP);
|
|
}
|
|
else
|
|
{
|
|
if (number_signed)
|
|
num.l = __strtol_internal (wp, &tw, base, flags & GROUP);
|
|
else
|
|
num.ul = __strtoul_internal (wp, &tw, base, flags & GROUP);
|
|
}
|
|
if (wp == tw)
|
|
conv_error ();
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
if (! number_signed)
|
|
{
|
|
if (need_longlong && (flags & LONGDBL))
|
|
*ARG (unsigned LONGLONG int *) = num.uq;
|
|
else if (need_long && (flags & LONG))
|
|
*ARG (unsigned long int *) = num.ul;
|
|
else if (flags & SHORT)
|
|
*ARG (unsigned short int *)
|
|
= (unsigned short int) num.ul;
|
|
else if (!(flags & CHAR))
|
|
*ARG (unsigned int *) = (unsigned int) num.ul;
|
|
else
|
|
*ARG (unsigned char *) = (unsigned char) num.ul;
|
|
}
|
|
else
|
|
{
|
|
if (need_longlong && (flags & LONGDBL))
|
|
*ARG (LONGLONG int *) = num.q;
|
|
else if (need_long && (flags & LONG))
|
|
*ARG (long int *) = num.l;
|
|
else if (flags & SHORT)
|
|
*ARG (short int *) = (short int) num.l;
|
|
else if (!(flags & CHAR))
|
|
*ARG (int *) = (int) num.l;
|
|
else
|
|
*ARG (signed char *) = (signed char) num.ul;
|
|
}
|
|
++done;
|
|
}
|
|
break;
|
|
|
|
case L_('e'): /* Floating-point numbers. */
|
|
case L_('E'):
|
|
case L_('f'):
|
|
case L_('g'):
|
|
case L_('G'):
|
|
case L_('a'):
|
|
case L_('A'):
|
|
c = inchar ();
|
|
if (c == EOF)
|
|
input_error ();
|
|
|
|
/* Check for a sign. */
|
|
if (c == L_('-') || c == L_('+'))
|
|
{
|
|
negative = c == L_('-');
|
|
if (width == 0 || inchar () == EOF)
|
|
/* EOF is only an input error before we read any chars. */
|
|
conv_error ();
|
|
if (! ISDIGIT (c) && c != decimal)
|
|
{
|
|
/* This is no valid number. */
|
|
ungetc (c, s);
|
|
input_error ();
|
|
}
|
|
if (width > 0)
|
|
--width;
|
|
}
|
|
else
|
|
negative = 0;
|
|
|
|
/* Take care for the special arguments "nan" and "inf". */
|
|
if (TOLOWER (c) == L_('n'))
|
|
{
|
|
/* Maybe "nan". */
|
|
ADDW (c);
|
|
if (width == 0 || inchar () == EOF || TOLOWER (c) != L_('a'))
|
|
input_error ();
|
|
if (width > 0)
|
|
--width;
|
|
ADDW (c);
|
|
if (width == 0 || inchar () == EOF || TOLOWER (c) != L_('n'))
|
|
input_error ();
|
|
if (width > 0)
|
|
--width;
|
|
ADDW (c);
|
|
/* It is "nan". */
|
|
goto scan_float;
|
|
}
|
|
else if (TOLOWER (c) == L_('i'))
|
|
{
|
|
/* Maybe "inf" or "infinity". */
|
|
ADDW (c);
|
|
if (width == 0 || inchar () == EOF || TOLOWER (c) != L_('n'))
|
|
input_error ();
|
|
if (width > 0)
|
|
--width;
|
|
ADDW (c);
|
|
if (width == 0 || inchar () == EOF || TOLOWER (c) != L_('f'))
|
|
input_error ();
|
|
if (width > 0)
|
|
--width;
|
|
ADDW (c);
|
|
/* It is as least "inf". */
|
|
if (width != 0 && inchar () != EOF)
|
|
{
|
|
if (TOLOWER (c) == L_('i'))
|
|
{
|
|
if (width > 0)
|
|
--width;
|
|
/* Now we have to read the rest as well. */
|
|
ADDW (c);
|
|
if (width == 0 || inchar () == EOF
|
|
|| TOLOWER (c) != L_('n'))
|
|
input_error ();
|
|
if (width > 0)
|
|
--width;
|
|
ADDW (c);
|
|
if (width == 0 || inchar () == EOF
|
|
|| TOLOWER (c) != L_('i'))
|
|
input_error ();
|
|
if (width > 0)
|
|
--width;
|
|
ADDW (c);
|
|
if (width == 0 || inchar () == EOF
|
|
|| TOLOWER (c) != L_('t'))
|
|
input_error ();
|
|
if (width > 0)
|
|
--width;
|
|
ADDW (c);
|
|
if (width == 0 || inchar () == EOF
|
|
|| TOLOWER (c) != L_('y'))
|
|
input_error ();
|
|
if (width > 0)
|
|
--width;
|
|
ADDW (c);
|
|
}
|
|
else
|
|
/* Never mind. */
|
|
ungetc (c, s);
|
|
}
|
|
goto scan_float;
|
|
}
|
|
|
|
is_hexa = 0;
|
|
exp_char = L_('e');
|
|
if (width != 0 && c == L_('0'))
|
|
{
|
|
ADDW (c);
|
|
c = inchar ();
|
|
if (width > 0)
|
|
--width;
|
|
if (width != 0 && TOLOWER (c) == L_('x'))
|
|
{
|
|
/* It is a number in hexadecimal format. */
|
|
ADDW (c);
|
|
|
|
is_hexa = 1;
|
|
exp_char = L_('p');
|
|
|
|
/* Grouping is not allowed. */
|
|
flags &= ~GROUP;
|
|
c = inchar ();
|
|
if (width > 0)
|
|
--width;
|
|
}
|
|
}
|
|
|
|
got_dot = got_e = 0;
|
|
do
|
|
{
|
|
if (ISDIGIT (c))
|
|
ADDW (c);
|
|
else if (!got_e && is_hexa && ISXDIGIT (c))
|
|
ADDW (c);
|
|
else if (got_e && wp[wpsize - 1] == exp_char
|
|
&& (c == L_('-') || c == L_('+')))
|
|
ADDW (c);
|
|
else if (wpsize > 0 && !got_e && TOLOWER (c) == exp_char)
|
|
{
|
|
ADDW (exp_char);
|
|
got_e = got_dot = 1;
|
|
}
|
|
else if (c == decimal && !got_dot)
|
|
{
|
|
ADDW (c);
|
|
got_dot = 1;
|
|
}
|
|
else if ((flags & GROUP) && c == thousands && !got_dot)
|
|
ADDW (c);
|
|
else
|
|
{
|
|
/* The last read character is not part of the number
|
|
anymore. */
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
if (width > 0)
|
|
--width;
|
|
}
|
|
while (width != 0 && inchar () != EOF);
|
|
|
|
/* Have we read any character? If we try to read a number
|
|
in hexadecimal notation and we have read only the `0x'
|
|
prefix or no exponent this is an error. */
|
|
if (wpsize == 0 || (is_hexa && (wpsize == 2 || ! got_e)))
|
|
conv_error ();
|
|
|
|
scan_float:
|
|
/* Convert the number. */
|
|
ADDW (L_('\0'));
|
|
if (flags & LONGDBL)
|
|
{
|
|
long double d = __strtold_internal (wp, &tw, flags & GROUP);
|
|
if (!(flags & SUPPRESS) && tw != wp)
|
|
*ARG (long double *) = negative ? -d : d;
|
|
}
|
|
else if (flags & LONG)
|
|
{
|
|
double d = __strtod_internal (wp, &tw, flags & GROUP);
|
|
if (!(flags & SUPPRESS) && tw != wp)
|
|
*ARG (double *) = negative ? -d : d;
|
|
}
|
|
else
|
|
{
|
|
float d = __strtof_internal (wp, &tw, flags & GROUP);
|
|
if (!(flags & SUPPRESS) && tw != wp)
|
|
*ARG (float *) = negative ? -d : d;
|
|
}
|
|
|
|
if (tw == wp)
|
|
conv_error ();
|
|
|
|
if (!(flags & SUPPRESS))
|
|
++done;
|
|
break;
|
|
|
|
case L_('['): /* Character class. */
|
|
if (flags & LONG)
|
|
STRING_ARG (wstr, wchar_t);
|
|
else
|
|
STRING_ARG (str, char);
|
|
|
|
if (*f == L_('^'))
|
|
{
|
|
++f;
|
|
not_in = 1;
|
|
}
|
|
else
|
|
not_in = 0;
|
|
|
|
if (width < 0)
|
|
/* There is no width given so there is also no limit on the
|
|
number of characters we read. Therefore we set width to
|
|
a very high value to make the algorithm easier. */
|
|
width = INT_MAX;
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
/* Find the beginning and the end of the scanlist. We are not
|
|
creating a lookup table since it would have to be too large.
|
|
Instead we search each time through the string. This is not
|
|
a constant lookup time but who uses this feature deserves to
|
|
be punished. */
|
|
tw = (wchar_t *) f; /* Marks the beginning. */
|
|
|
|
if (*f == ']' || *f == '-')
|
|
++f;
|
|
|
|
while ((fc = *f++) != L'\0' && fc != L']');
|
|
|
|
if (fc == L'\0')
|
|
conv_error ();
|
|
wp = (wchar_t *) f - 1;
|
|
#else
|
|
/* Fill WP with byte flags indexed by character.
|
|
We will use this flag map for matching input characters. */
|
|
if (wpmax < UCHAR_MAX)
|
|
{
|
|
wpmax = UCHAR_MAX;
|
|
wp = (char *) alloca (wpmax);
|
|
}
|
|
memset (wp, '\0', UCHAR_MAX);
|
|
|
|
fc = *f;
|
|
if (fc == ']' || fc == '-')
|
|
{
|
|
/* If ] or - appears before any char in the set, it is not
|
|
the terminator or separator, but the first char in the
|
|
set. */
|
|
wp[fc] = 1;
|
|
++f;
|
|
}
|
|
|
|
tw = (char *) f;
|
|
while ((fc = *f++) != '\0' && fc != ']')
|
|
if (fc == '-' && *f != '\0' && *f != ']' && f - 2 != tw
|
|
&& (unsigned char) f[-2] <= (unsigned char) *f)
|
|
{
|
|
/* Add all characters from the one before the '-'
|
|
up to (but not including) the next format char. */
|
|
for (fc = f[-2]; fc < *f; ++fc)
|
|
wp[fc] = 1;
|
|
}
|
|
else
|
|
/* Add the character to the flag map. */
|
|
wp[fc] = 1;
|
|
|
|
if (fc == '\0')
|
|
conv_error();
|
|
#endif
|
|
|
|
if (flags & LONG)
|
|
{
|
|
size_t now = read_in;
|
|
#ifdef COMPILE_WPRINTF
|
|
do
|
|
{
|
|
wchar_t *runp;
|
|
|
|
if (inchar () == WEOF)
|
|
break;
|
|
|
|
/* Test whether it's in the scanlist. */
|
|
runp = tw;
|
|
while (runp < wp)
|
|
{
|
|
if (runp[0] == L'-' && runp[1] != '\0' && runp[1] != ']'
|
|
&& runp != tw
|
|
&& (unsigned int) runp[-1] <= (unsigned int) runp[1])
|
|
{
|
|
/* Match against all characters in between the
|
|
first and last character of the sequence. */
|
|
wchar_t wc;
|
|
|
|
for (wc = runp[-1] + 1; wc < runp[1]; ++wc)
|
|
if (wc == c)
|
|
break;
|
|
|
|
if (wc == runp[1] && !not_in)
|
|
break;
|
|
if (wc == runp[1] && not_in)
|
|
{
|
|
/* The current character is not in the
|
|
scanset. */
|
|
ungetwc (c, s);
|
|
goto out;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (*runp == runp[1] && !not_in)
|
|
break;
|
|
if (*runp != runp[1] && not_in)
|
|
{
|
|
ungetwc (c ,s);
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
++runp;
|
|
}
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*wstr++ = c;
|
|
|
|
if ((flags & MALLOC)
|
|
&& wstr == (wchar_t *) *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(2 * strsize)
|
|
* sizeof (wchar_t));
|
|
if (wstr == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
wstr = (wchar_t *)
|
|
realloc (*strptr, (strsize
|
|
+ sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
((wchar_t *) (*strptr))[strsize - 1] = L'\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (--width > 0);
|
|
out:
|
|
#else
|
|
char buf[MB_LEN_MAX];
|
|
size_t cnt = 0;
|
|
mbstate_t cstate;
|
|
|
|
memset (&cstate, '\0', sizeof (cstate));
|
|
|
|
do
|
|
{
|
|
again:
|
|
if (inchar () == EOF)
|
|
break;
|
|
|
|
if (wp[c] == not_in)
|
|
{
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
|
|
/* This is easy. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
size_t n;
|
|
|
|
/* Convert it into a wide character. */
|
|
n = __mbrtowc (wstr, buf, cnt, &cstate);
|
|
|
|
if (n == (size_t) -2)
|
|
{
|
|
/* Possibly correct character, just not enough
|
|
input. */
|
|
assert (cnt < MB_CUR_MAX);
|
|
goto again;
|
|
}
|
|
|
|
if (n != cnt)
|
|
encode_error ();
|
|
|
|
++wstr;
|
|
if ((flags & MALLOC)
|
|
&& wstr == (wchar_t *) *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
wstr = (wchar_t *) realloc (*strptr,
|
|
(2 * strsize
|
|
* sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
wstr = (wchar_t *)
|
|
realloc (*strptr, ((strsize + 1)
|
|
* sizeof (wchar_t)));
|
|
if (wstr == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting,
|
|
so at least we don't skip any input. */
|
|
((wchar_t *) (*strptr))[strsize - 1] = L'\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) wstr;
|
|
wstr += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (--width > 0);
|
|
|
|
if (cnt != 0)
|
|
/* We stopped in the middle of recognizing another
|
|
character. That's a problem. */
|
|
encode_error ();
|
|
#endif
|
|
|
|
if (now == read_in)
|
|
/* We haven't succesfully read any character. */
|
|
conv_error ();
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*wstr++ = L'\0';
|
|
|
|
if ((flags & MALLOC)
|
|
&& wstr - (wchar_t *) *strptr != strsize)
|
|
{
|
|
wchar_t *cp = (wchar_t *)
|
|
realloc (*strptr, ((wstr - (wchar_t *) *strptr)
|
|
* sizeof(wchar_t)));
|
|
if (cp != NULL)
|
|
*strptr = (char *) cp;
|
|
}
|
|
|
|
++done;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
size_t now = read_in;
|
|
#ifdef COMPILE_WPRINTF
|
|
|
|
memset (&state, '\0', sizeof (state));
|
|
|
|
do
|
|
{
|
|
wchar_t *runp;
|
|
size_t n;
|
|
|
|
if (inchar () == WEOF)
|
|
break;
|
|
|
|
/* Test whether it's in the scanlist. */
|
|
runp = tw;
|
|
while (runp < wp)
|
|
{
|
|
if (runp[0] == L'-' && runp[1] != '\0' && runp[1] != ']'
|
|
&& runp != tw
|
|
&& (unsigned int) runp[-1] <= (unsigned int) runp[1])
|
|
{
|
|
/* Match against all characters in between the
|
|
first and last character of the sequence. */
|
|
wchar_t wc;
|
|
|
|
for (wc = runp[-1] + 1; wc < runp[1]; ++wc)
|
|
if (wc == c)
|
|
break;
|
|
|
|
if (wc == runp[1] && !not_in)
|
|
break;
|
|
if (wc == runp[1] && not_in)
|
|
{
|
|
/* The current character is not in the
|
|
scanset. */
|
|
ungetwc (c, s);
|
|
goto out2;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (*runp == runp[1] && !not_in)
|
|
break;
|
|
if (*runp != runp[1] && not_in)
|
|
{
|
|
ungetwc (c ,s);
|
|
goto out2;
|
|
}
|
|
}
|
|
|
|
++runp;
|
|
}
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
if ((flags & MALLOC)
|
|
&& str + MB_CUR_MAX >= *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr, 2 * strsize);
|
|
if (str == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
str = (char *) realloc (*strptr, strsize + 1);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
(*strptr)[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = str;
|
|
str += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = str;
|
|
str += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
n = wcrtomb (!(flags & SUPPRESS) ? str : NULL, c, &state);
|
|
if (n == (size_t) -1)
|
|
encode_error ();
|
|
|
|
assert (n <= MB_CUR_MAX);
|
|
str += n;
|
|
}
|
|
while (--width > 0);
|
|
out2:
|
|
#else
|
|
do
|
|
{
|
|
if (inchar () == EOF)
|
|
break;
|
|
|
|
if (wp[c] == not_in)
|
|
{
|
|
ungetc (c, s);
|
|
break;
|
|
}
|
|
|
|
/* This is easy. */
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
*str++ = c;
|
|
if ((flags & MALLOC)
|
|
&& (char *) str == *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr, 2 * strsize);
|
|
if (str == NULL)
|
|
{
|
|
/* Can't allocate that much. Last-ditch
|
|
effort. */
|
|
str = (char *) realloc (*strptr, strsize + 1);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the
|
|
string and stop converting,
|
|
so at least we don't skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
++strsize;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str += strsize;
|
|
strsize *= 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (--width > 0);
|
|
#endif
|
|
|
|
if (now == read_in)
|
|
/* We haven't succesfully read any character. */
|
|
conv_error ();
|
|
|
|
if (!(flags & SUPPRESS))
|
|
{
|
|
#ifdef COMPILE_WPRINTF
|
|
/* We have to emit the code to get into the intial
|
|
state. */
|
|
char buf[MB_LEN_MAX];
|
|
size_t n = wcrtomb (buf, L'\0', &state);
|
|
if (n > 0 && (flags & MALLOC)
|
|
&& str + n >= *strptr + strsize)
|
|
{
|
|
/* Enlarge the buffer. */
|
|
str = (char *) realloc (*strptr,
|
|
(str + n + 1) - *strptr);
|
|
if (str == NULL)
|
|
{
|
|
/* We lose. Oh well. Terminate the string
|
|
and stop converting, so at least we don't
|
|
skip any input. */
|
|
((char *) (*strptr))[strsize - 1] = '\0';
|
|
++done;
|
|
conv_error ();
|
|
}
|
|
else
|
|
{
|
|
*strptr = (char *) str;
|
|
str = ((char *) *strptr) + strsize;
|
|
strsize = (str + n + 1) - *strptr;
|
|
}
|
|
}
|
|
|
|
str = __mempcpy (str, buf, n);
|
|
#endif
|
|
*str = '\0';
|
|
|
|
if ((flags & MALLOC) && str - *strptr != strsize)
|
|
{
|
|
char *cp = (char *) realloc (*strptr, str - *strptr);
|
|
if (cp != NULL)
|
|
*strptr = cp;
|
|
}
|
|
|
|
++done;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case L_('p'): /* Generic pointer. */
|
|
base = 16;
|
|
/* A PTR must be the same size as a `long int'. */
|
|
flags &= ~(SHORT|LONGDBL);
|
|
if (need_long)
|
|
flags |= LONG;
|
|
number_signed = 0;
|
|
read_pointer = 1;
|
|
goto number;
|
|
|
|
default:
|
|
/* If this is an unknown format character punt. */
|
|
conv_error ();
|
|
}
|
|
}
|
|
|
|
/* The last thing we saw int the format string was a white space.
|
|
Consume the last white spaces. */
|
|
if (skip_space)
|
|
{
|
|
do
|
|
c = inchar ();
|
|
while (ISSPACE (c));
|
|
ungetc (c, s);
|
|
}
|
|
|
|
/* Unlock stream. */
|
|
UNLOCK_STREAM (s);
|
|
|
|
return done;
|
|
}
|
|
|
|
#ifdef USE_IN_LIBIO
|
|
# ifdef COMPILE_WPRINTF
|
|
int
|
|
__vfwscanf (FILE *s, const wchar_t *format, va_list argptr)
|
|
{
|
|
return _IO_vfwscanf (s, format, argptr, NULL);
|
|
}
|
|
# else
|
|
int
|
|
__vfscanf (FILE *s, const char *format, va_list argptr)
|
|
{
|
|
return _IO_vfscanf (s, format, argptr, NULL);
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef COMPILE_WPRINTF
|
|
weak_alias (__vfwscanf, vfwscanf)
|
|
#else
|
|
weak_alias (__vfscanf, vfscanf)
|
|
#endif
|