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-rw-r--r--stdio-common/vfscanf.c138
1 files changed, 65 insertions, 73 deletions
diff --git a/stdio-common/vfscanf.c b/stdio-common/vfscanf.c
index dd635c9..8a799ac 100644
--- a/stdio-common/vfscanf.c
+++ b/stdio-common/vfscanf.c
@@ -35,13 +35,15 @@ Cambridge, MA 02139, USA. */
#endif
/* Those are flags in the conversion format. */
-# define LONG 0x01 /* l: long or double */
-# define LONGDBL 0x02 /* L: long long or long double */
-# define SHORT 0x04 /* h: short */
-# define SUPPRESS 0x08 /* suppress assignment */
-# define POINTER 0x10 /* weird %p pointer (`fake hex') */
-# define NOSKIP 0x20 /* do not skip blanks */
-# define WIDTH 0x40 /* width */
+# 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 */
#ifdef USE_IN_LIBIO
@@ -108,20 +110,9 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
register size_t done = 0; /* Assignments done. */
register size_t read_in = 0; /* Chars read in. */
register int c; /* Last char read. */
- register int do_assign; /* Whether to do an assignment. */
register int width; /* Maximum field width. */
- int group_flag; /* %' modifier flag. */
- int flags; /* Trace flags for current format element. */
-
- /* Type modifiers. */
- int is_short, is_long, is_long_double;
-#ifdef HAVE_LONGLONG
- /* We use the `L' modifier for `long long int'. */
-# define is_longlong is_long_double
-#else
-# define is_longlong 0
-#endif
- int malloc_string; /* Args are char ** to be filled in. */
+ register int flags; /* Modifiers for current format element. */
+
/* Status for reading F-P nums. */
char got_dot, got_e;
/* If a [...] is a [^...]. */
@@ -132,6 +123,8 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
int number_signed;
/* Decimal point character. */
wchar_t decimal;
+ /* The thousands character of the current locale. */
+ wchar_t thousands;
/* Integral holding variables. */
union
{
@@ -173,6 +166,10 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
if (mbtowc (&decimal, _NL_CURRENT (LC_NUMERIC, DECIMAL_POINT),
strlen (_NL_CURRENT (LC_NUMERIC, DECIMAL_POINT))) <= 0)
decimal = (wchar_t) *_NL_CURRENT (LC_NUMERIC, DECIMAL_POINT);
+ /* Figure out the thousands separator character. */
+ if (mbtowc (&thousands, _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP),
+ strlen (_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP))) <= 0)
+ thousands = (wchar_t) *_NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
c = inchar ();
@@ -255,9 +252,6 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
/* Initialize state of modifiers. */
argpos = 0;
- do_assign = 1;
- group_flag = 0;
- is_short = is_long = is_long_double = malloc_string = 0;
/* Prepare temporary buffer. */
wpsize = 0;
@@ -274,6 +268,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
{
/* Oops; that was actually the field width. */
width = argpos;
+ flags |= WIDTH;
argpos = 0;
goto got_width;
}
@@ -284,11 +279,10 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
switch (*f++)
{
case '*':
- flags = SUPPRESS;
- do_assign = 0;
+ flags |= SUPPRESS;
break;
case '\'':
- group_flag = 1;
+ flags |= GROUP;
break;
}
@@ -313,42 +307,36 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
{
case 'h':
/* int's are short int's. */
- if (flags & ~(SUPPRESS | WIDTH))
+ if (flags & (LONG|LONGDBL))
/* Signal illegal format element. */
conv_error ();
flags |= SHORT;
- is_short = 1;
break;
case 'l':
- if (is_long)
+ if (flags & SHORT)
+ conv_error ();
+ else if (flags & LONG)
{
/* A double `l' is equivalent to an `L'. */
- if ((flags & ~(SUPPRESS | WIDTH)))
- conv_error ();
flags &= ~LONG;
flags |= LONGDBL;
- is_longlong = 1;
}
else
- {
- /* int's are long int's. */
- flags |= LONG;
- is_long = 1;
- }
+ /* int's are long int's. */
+ flags |= LONG;
break;
case 'q':
case 'L':
/* double's are long double's, and int's are long long int's. */
- if (flags & ~(SUPPRESS | WIDTH))
+ if (flags & (LONG|SHORT))
/* Signal illegal format element. */
conv_error ();
flags |= LONGDBL;
- is_long_double = 1;
break;
case 'a':
/* String conversions (%s, %[) take a `char **'
arg and fill it in with a malloc'd pointer. */
- malloc_string = 1;
+ flags |= MALLOC;
break;
}
@@ -375,12 +363,12 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
break;
case 'n': /* Answer number of assignments done. */
- if (do_assign)
+ if (!(flags & SUPPRESS))
*ARG (int *) = read_in - 1; /* Don't count the read-ahead. */
break;
case 'c': /* Match characters. */
- if (do_assign)
+ if (!(flags & SUPPRESS))
{
str = ARG (char *);
if (str == NULL)
@@ -393,7 +381,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
if (width == -1)
width = 1;
- if (do_assign)
+ if (!(flags & SUPPRESS))
{
do
*str++ = c;
@@ -402,16 +390,16 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
else
while (inchar () != EOF && --width > 0);
- if (do_assign)
+ if (!(flags & SUPPRESS))
++done;
break;
case 's': /* Read a string. */
#define STRING_ARG \
- if (do_assign) \
+ if (!(flags & SUPPRESS)) \
{ \
- if (malloc_string) \
+ if (flags & MALLOC) \
{ \
/* The string is to be stored in a malloc'd buffer. */ \
strptr = ARG (char **); \
@@ -436,10 +424,10 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
if (isspace (c))
break;
#define STRING_ADD_CHAR(c) \
- if (do_assign) \
+ if (!(flags & SUPPRESS)) \
{ \
*str++ = c; \
- if (malloc_string && str == *strptr + strsize) \
+ if ((flags & MALLOC) && str == *strptr + strsize) \
{ \
/* Enlarge the buffer. */ \
str = realloc (*strptr, strsize * 2); \
@@ -474,7 +462,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
STRING_ADD_CHAR (c);
} while (inchar () != EOF && (width <= 0 || --width > 0));
- if (do_assign)
+ if (!(flags & SUPPRESS))
{
*str = '\0';
++done;
@@ -550,7 +538,8 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
while (c != EOF && width != 0)
{
if (base == 16 ? !isxdigit (c) :
- (!isdigit (c) || c - '0' >= base))
+ ((!isdigit (c) || c - '0' >= base) &&
+ !((flags & GROUP) && base == 10 && c == thousands)))
break;
ADDW (c);
if (width > 0)
@@ -566,32 +555,32 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
/* Convert the number. */
ADDW ('\0');
- if (is_longlong)
+ if (flags & LONGDBL)
{
if (number_signed)
- num.q = __strtoq_internal (wp, &tw, base, group_flag);
+ num.q = __strtoq_internal (wp, &tw, base, flags & GROUP);
else
- num.uq = __strtouq_internal (wp, &tw, base, group_flag);
+ num.uq = __strtouq_internal (wp, &tw, base, flags & GROUP);
}
else
{
if (number_signed)
- num.l = __strtol_internal (wp, &tw, base, group_flag);
+ num.l = __strtol_internal (wp, &tw, base, flags & GROUP);
else
- num.ul = __strtoul_internal (wp, &tw, base, group_flag);
+ num.ul = __strtoul_internal (wp, &tw, base, flags & GROUP);
}
if (wp == tw)
conv_error ();
- if (do_assign)
+ if (!(flags & SUPPRESS))
{
if (! number_signed)
{
- if (is_longlong)
+ if (flags & LONGDBL)
*ARG (unsigned LONGLONG int *) = num.uq;
- else if (is_long)
+ else if (flags & LONG)
*ARG (unsigned long int *) = num.ul;
- else if (is_short)
+ else if (flags & SHORT)
*ARG (unsigned short int *)
= (unsigned short int) num.ul;
else
@@ -599,11 +588,11 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
}
else
{
- if (is_longlong)
+ if (flags & LONGDBL)
*ARG (LONGLONG int *) = num.q;
- else if (is_long)
+ else if (flags & LONG)
*ARG (long int *) = num.l;
- else if (is_short)
+ else if (flags & SHORT)
*ARG (short int *) = (short int) num.l;
else
*ARG (int *) = (int) num.l;
@@ -649,6 +638,8 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
ADDW (c);
got_dot = 1;
}
+ else if ((flags & GROUP) && c == thousands && !got_dot)
+ ADDW (c);
else
break;
if (width > 0)
@@ -663,29 +654,29 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
/* Convert the number. */
ADDW ('\0');
- if (is_long_double)
+ if (flags & LONGDBL)
{
- long double d = __strtold_internal (wp, &tw, group_flag);
- if (do_assign && tw != wp)
+ long double d = __strtold_internal (wp, &tw, flags & GROUP);
+ if (!(flags & SUPPRESS) && tw != wp)
*ARG (long double *) = d;
}
- else if (is_long)
+ else if (flags & LONG)
{
- double d = __strtod_internal (wp, &tw, group_flag);
- if (do_assign && tw != wp)
+ double d = __strtod_internal (wp, &tw, flags & GROUP);
+ if (!(flags & SUPPRESS) && tw != wp)
*ARG (double *) = d;
}
else
{
- float d = __strtof_internal (wp, &tw, group_flag);
- if (do_assign && tw != wp)
+ float d = __strtof_internal (wp, &tw, flags & GROUP);
+ if (!(flags & SUPPRESS) && tw != wp)
*ARG (float *) = d;
}
if (tw == wp)
conv_error ();
- if (do_assign)
+ if (!(flags & SUPPRESS))
++done;
break;
@@ -751,7 +742,7 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
if (read_in == num.ul)
conv_error ();
- if (do_assign)
+ if (!(flags & SUPPRESS))
{
*str = '\0';
++done;
@@ -761,7 +752,8 @@ __vfscanf (FILE *s, const char *format, va_list argptr)
case 'p': /* Generic pointer. */
base = 16;
/* A PTR must be the same size as a `long int'. */
- is_long = 1;
+ flags &= ~(SHORT|LONGDBL);
+ flags |= LONG;
number_signed = 0;
goto number;
}