/* Formatting a monetary value according to the current locale.
- Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>
and Jochen Hein <Jochen.Hein@informatik.TU-Clausthal.de>, 1996.
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.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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.
+ Lesser 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. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
-#include <ctype.h>
-#include <errno.h>
-#include <langinfo.h>
#include <monetary.h>
-#ifdef USE_IN_LIBIO
-# include "../libio/libioP.h"
-# include "../libio/strfile.h"
-#endif
-#include <printf.h>
#include <stdarg.h>
-#include <stdio.h>
-#include <string.h>
-#include "../locale/localeinfo.h"
+#include <locale/localeinfo.h>
+#include <math_ldbl_opt.h>
-
-#define out_char(Ch) \
- do { \
- if (dest >= s + maxsize - 1) \
- { \
- __set_errno (E2BIG); \
- va_end (ap); \
- return -1; \
- } \
- *dest++ = (Ch); \
- } while (0)
-
-#define out_string(String) \
- do { \
- const char *_s = (String); \
- while (*_s) \
- out_char (*_s++); \
- } while (0)
-
-#define to_digit(Ch) ((Ch) - '0')
-
-
-/* We use this code also for the extended locale handling where the
- function gets as an additional argument the locale which has to be
- used. To access the values we have to redefine the _NL_CURRENT
- macro. */
-#ifdef USE_IN_EXTENDED_LOCALE_MODEL
-# undef _NL_CURRENT
-# define _NL_CURRENT(category, item) \
- (current->values[_NL_ITEM_INDEX (item)].string)
-#endif
-
-extern int __printf_fp (FILE *, const struct printf_info *,
- const void **const);
-/* This function determines the number of digit groups in the output.
- The definition is in printf_fp.c. */
-extern unsigned int __guess_grouping (unsigned int intdig_max,
- const char *grouping, wchar_t sepchar);
-
-
-/* We have to overcome some problems with this implementation. On the
- one hand the strfmon() function is specified in XPG4 and of course
- it has to follow this. But on the other hand POSIX.2 specifies
- some information in the LC_MONETARY category which should be used,
- too. Some of the information contradicts the information which can
- be specified in format string. */
-#ifndef USE_IN_EXTENDED_LOCALE_MODEL
-ssize_t
-strfmon (char *s, size_t maxsize, const char *format, ...)
-#else
ssize_t
-__strfmon_l (char *s, size_t maxsize, __locale_t loc, const char *format, ...)
-#endif
+__strfmon (char *s, size_t maxsize, const char *format, ...)
{
-#ifdef USE_IN_EXTENDED_LOCALE_MODEL
- struct locale_data *current = loc->__locales[LC_MONETARY];
-#endif
-#ifdef USE_IN_LIBIO
- _IO_strfile f;
-#else
- FILE f;
-#endif
- struct printf_info info;
- va_list ap; /* Scan through the varargs. */
- char *dest; /* Pointer so copy the output. */
- const char *fmt; /* Pointer that walks through format. */
+ va_list ap;
va_start (ap, format);
- dest = s;
- fmt = format;
-
- /* Loop through the format-string. */
- while (*fmt != '\0')
- {
- /* The floating-point value to output. */
- union
- {
- double dbl;
- __long_double_t ldbl;
- }
- fpnum;
- int print_curr_symbol;
- int left_prec;
- int left_pad;
- int right_prec;
- int group;
- char pad;
- int is_long_double;
- int p_sign_posn;
- int n_sign_posn;
- int sign_posn;
- int other_sign_posn;
- int left;
- int is_negative;
- int sep_by_space;
- int other_sep_by_space;
- int cs_precedes;
- int other_cs_precedes;
- const char *sign_string;
- const char *other_sign_string;
- int done;
- const char *currency_symbol;
- int width;
- char *startp;
- const void *ptr;
-
- /* Process all character which do not introduce a format
- specification. */
- if (*fmt != '%')
- {
- out_char (*fmt++);
- continue;
- }
-
- /* "%%" means a single '%' character. */
- if (fmt[1] == '%')
- {
- out_char (*++fmt);
- ++fmt;
- continue;
- }
-
- /* Defaults for formatting. */
- print_curr_symbol = 1; /* Print the currency symbol. */
- left_prec = -1; /* No left precision specified. */
- right_prec = -1; /* No right precision specified. */
- group = 1; /* Print digits grouped. */
- pad = ' '; /* Fill character is <SP>. */
- is_long_double = 0; /* Double argument by default. */
- p_sign_posn = -1; /* This indicates whether the */
- n_sign_posn = -1; /* '(' flag is given. */
- width = -1; /* No width specified so far. */
- left = 0; /* Right justified by default. */
-
- /* Parse group characters. */
- while (1)
- {
- switch (*++fmt)
- {
- case '=': /* Set fill character. */
- pad = *++fmt;
- if (pad == '\0')
- {
- /* Premature EOS. */
- __set_errno (EINVAL);
- va_end (ap);
- return -1;
- }
- continue;
- case '^': /* Don't group digits. */
- group = 0;
- continue;
- case '+': /* Use +/- for sign of number. */
- if (n_sign_posn != -1)
- {
- __set_errno (EINVAL);
- va_end (ap);
- return -1;
- }
- p_sign_posn = *_NL_CURRENT (LC_MONETARY, P_SIGN_POSN);
- n_sign_posn = *_NL_CURRENT (LC_MONETARY, N_SIGN_POSN);
- continue;
- case '(': /* Use ( ) for negative sign. */
- if (n_sign_posn != -1)
- {
- __set_errno (EINVAL);
- va_end (ap);
- return -1;
- }
- p_sign_posn = 0;
- n_sign_posn = 0;
- continue;
- case '!': /* Don't print the currency symbol. */
- print_curr_symbol = 0;
- continue;
- case '-': /* Print left justified. */
- left = 1;
- continue;
- default:
- /* Will stop the loop. */;
- }
- break;
- }
-
- /* If not specified by the format string now find the values for
- the format specification. */
- if (p_sign_posn == -1)
- p_sign_posn = *_NL_CURRENT (LC_MONETARY, P_SIGN_POSN);
- if (n_sign_posn == -1)
- n_sign_posn = *_NL_CURRENT (LC_MONETARY, N_SIGN_POSN);
-
- if (isdigit (*fmt))
- {
- /* Parse field width. */
- width = to_digit (*fmt);
-
- while (isdigit (*++fmt))
- {
- width *= 10;
- width += to_digit (*fmt);
- }
-
- /* If we don't have enough room for the demanded width we
- can stop now and return an error. */
- if (dest + width >= s + maxsize)
- {
- __set_errno (E2BIG);
- va_end (ap);
- return -1;
- }
- }
-
- /* Recognize left precision. */
- if (*fmt == '#')
- {
- if (!isdigit (*++fmt))
- {
- __set_errno (EINVAL);
- va_end (ap);
- return -1;
- }
- left_prec = to_digit (*fmt);
-
- while (isdigit (*++fmt))
- {
- left_prec *= 10;
- left_prec += to_digit (*fmt);
- }
- }
-
- /* Recognize right precision. */
- if (*fmt == '.')
- {
- if (!isdigit (*++fmt))
- {
- __set_errno (EINVAL);
- va_end (ap);
- return -1;
- }
- right_prec = to_digit (*fmt);
-
- while (isdigit (*++fmt))
- {
- right_prec *= 10;
- right_prec += to_digit (*fmt);
- }
- }
-
- /* Handle modifier. This is an extension. */
- if (*fmt == 'L')
- {
- ++fmt;
- is_long_double = 1;
- }
-
- /* Handle format specifier. */
- switch (*fmt++)
- {
- case 'i': /* Use international currency symbol. */
- currency_symbol = _NL_CURRENT (LC_MONETARY, INT_CURR_SYMBOL);
- if (right_prec == -1)
- {
- if (*_NL_CURRENT (LC_MONETARY, INT_FRAC_DIGITS) == CHAR_MAX)
- right_prec = 2;
- else
- right_prec = *_NL_CURRENT (LC_MONETARY, INT_FRAC_DIGITS);
- }
- break;
- case 'n': /* Use national currency symbol. */
- currency_symbol = _NL_CURRENT (LC_MONETARY, CURRENCY_SYMBOL);
- if (right_prec == -1)
- {
- if (*_NL_CURRENT (LC_MONETARY, FRAC_DIGITS) == CHAR_MAX)
- right_prec = 2;
- else
- right_prec = *_NL_CURRENT (LC_MONETARY, FRAC_DIGITS);
- }
- break;
- default: /* Any unrecognized format is an error. */
- __set_errno (EINVAL);
- va_end (ap);
- return -1;
- }
-
- /* If we have to print the digits grouped determine how many
- extra characters this means. */
- if (group && left_prec != -1)
- left_prec += __guess_grouping (left_prec,
- _NL_CURRENT (LC_MONETARY, MON_GROUPING),
- *_NL_CURRENT (LC_MONETARY,
- MON_THOUSANDS_SEP));
-
- /* Now it's time to get the value. */
- if (is_long_double == 1)
- {
- fpnum.ldbl = va_arg (ap, long double);
- is_negative = fpnum.ldbl < 0;
- if (is_negative)
- fpnum.ldbl = -fpnum.ldbl;
- }
- else
- {
- fpnum.dbl = va_arg (ap, double);
- is_negative = fpnum.dbl < 0;
- if (is_negative)
- fpnum.dbl = -fpnum.dbl;
- }
-
- /* We now know the sign of the value and can determine the format. */
- if (is_negative)
- {
- sign_string = _NL_CURRENT (LC_MONETARY, NEGATIVE_SIGN);
- /* If the locale does not specify a character for the
- negative sign we use a '-'. */
- if (*sign_string == '\0')
- sign_string = (const char *) "-";
- cs_precedes = *_NL_CURRENT (LC_MONETARY, N_CS_PRECEDES);
- sep_by_space = *_NL_CURRENT (LC_MONETARY, N_SEP_BY_SPACE);
- sign_posn = n_sign_posn;
-
- other_sign_string = _NL_CURRENT (LC_MONETARY, POSITIVE_SIGN);
- other_cs_precedes = *_NL_CURRENT (LC_MONETARY, P_CS_PRECEDES);
- other_sep_by_space = *_NL_CURRENT (LC_MONETARY, P_SEP_BY_SPACE);
- other_sign_posn = p_sign_posn;
- }
- else
- {
- sign_string = _NL_CURRENT (LC_MONETARY, POSITIVE_SIGN);
- cs_precedes = *_NL_CURRENT (LC_MONETARY, P_CS_PRECEDES);
- sep_by_space = *_NL_CURRENT (LC_MONETARY, P_SEP_BY_SPACE);
- sign_posn = p_sign_posn;
-
- other_sign_string = _NL_CURRENT (LC_MONETARY, NEGATIVE_SIGN);
- if (*other_sign_string == '\0')
- other_sign_string = (const char *) "-";
- other_cs_precedes = *_NL_CURRENT (LC_MONETARY, N_CS_PRECEDES);
- other_sep_by_space = *_NL_CURRENT (LC_MONETARY, N_SEP_BY_SPACE);
- other_sign_posn = n_sign_posn;
- }
-
- /* Set default values for unspecified information. */
- if (cs_precedes != 0)
- cs_precedes = 1;
- if (other_cs_precedes != 0)
- other_cs_precedes = 1;
- if (sep_by_space == CHAR_MAX)
- sep_by_space = 0;
- if (other_sep_by_space == CHAR_MAX)
- other_sep_by_space = 0;
- if (sign_posn == CHAR_MAX)
- sign_posn = 1;
- if (other_sign_posn == CHAR_MAX)
- other_sign_posn = 1;
-
- /* Set the left precision and padding needed for alignment */
- if (left_prec == -1)
- {
- left_prec = 0;
- left_pad = 0;
- }
- else
- {
- /* Set left_pad to number of spaces needed to align positive
- and negative formats */
-
- int sign_precedes = 0;
- int other_sign_precedes = 0;
-
- if (sign_posn == 0 && !is_negative)
- left_pad = 1;
- else
- left_pad = 0;
-
- if (!cs_precedes && other_cs_precedes)
- {
- /* The other format has currency symbol preceding value,
- but this format doesn't, so pad by the relevant amount */
- left_pad += strlen (currency_symbol);
- if (other_sep_by_space != 0)
- ++left_pad;
- }
-
- /* Work out for each format whether a sign (or left parenthesis)
- precedes the value */
- if (sign_posn == 0 || sign_posn == 1)
- sign_precedes = 1;
- if (other_sign_posn == 0 || other_sign_posn == 1)
- other_sign_precedes = 1;
- if (cs_precedes && (sign_posn == 3 || sign_posn == 4))
- sign_precedes = 1;
- if (other_cs_precedes
- && (other_sign_posn == 3 || other_sign_posn == 4))
- other_sign_precedes = 1;
-
- if (!sign_precedes && other_sign_precedes)
- {
- /* The other format has a sign (or left parenthesis) preceding
- the value, but this format doesn't */
- if (other_sign_posn == 0)
- ++left_pad;
- else
- left_pad += strlen (other_sign_string);
- }
- else if (sign_precedes && other_sign_precedes)
- {
- /* Both formats have a sign (or left parenthesis) preceding
- the value, so compare their lengths */
- int len_diff =
- ((other_sign_posn == 0 ? 1 : (int) strlen (other_sign_string))
- - (sign_posn == 0 ? 1 : (int) strlen (sign_string)));
- if (len_diff > 0)
- left_pad += len_diff;
- }
- }
-
- /* Perhaps we'll someday make these things configurable so
- better start using symbolic names now. */
-#define left_paren '('
-#define right_paren ')'
-
- startp = dest; /* Remember start so we can compute length. */
-
- while (left_pad-- > 0)
- out_char (' ');
-
- if (sign_posn == 0 && is_negative)
- out_char (left_paren);
-
- if (cs_precedes)
- {
- if (sign_posn != 0 && sign_posn != 2 && sign_posn != 4
- && sign_posn != 5)
- {
- out_string (sign_string);
- if (sep_by_space == 2)
- out_char (' ');
- }
-
- if (print_curr_symbol)
- {
- out_string (currency_symbol);
-
- if (sign_posn == 4)
- {
- if (sep_by_space == 2)
- out_char (' ');
- out_string (sign_string);
- }
- else
- if (sep_by_space == 1)
- out_char (' ');
- }
- }
- else
- if (sign_posn != 0 && sign_posn != 2 && sign_posn != 3
- && sign_posn != 4 && sign_posn != 5)
- out_string (sign_string);
-
- /* Print the number. */
-#ifdef USE_IN_LIBIO
- _IO_init ((_IO_FILE *) &f, 0);
- _IO_JUMPS ((_IO_FILE *) &f) = &_IO_str_jumps;
- _IO_str_init_static ((_IO_FILE *) &f, dest, (s + maxsize) - dest, dest);
-#else
- memset ((void *) &f, 0, sizeof (f));
- f.__magic = _IOMAGIC;
- f.__mode.__write = 1;
- /* The buffer size is one less than MAXLEN
- so we have space for the null terminator. */
- f.__bufp = f.__buffer = (char *) dest;
- f.__bufsize = (s + maxsize) - dest;
- f.__put_limit = f.__buffer + f.__bufsize;
- f.__get_limit = f.__buffer;
- /* After the buffer is full (MAXLEN characters have been written),
- any more characters written will go to the bit bucket. */
- f.__room_funcs = __default_room_functions;
- f.__io_funcs.__write = NULL;
- f.__seen = 1;
-#endif
- /* We clear the last available byte so we can find out whether
- the numeric representation is too long. */
- s[maxsize - 1] = '\0';
-
- info.prec = right_prec;
- info.width = left_prec + (right_prec ? (right_prec + 1) : 0);
- info.spec = 'f';
- info.is_long_double = is_long_double;
- info.is_short = 0;
- info.is_long = 0;
- info.alt = 0;
- info.space = 0;
- info.left = left;
- info.showsign = 0;
- info.group = group;
- info.pad = pad;
- info.extra = 1; /* This means use values from LC_MONETARY. */
- info.wide = 0;
-
- ptr = &fpnum;
- done = __printf_fp ((FILE *) &f, &info, &ptr);
- if (done < 0)
- {
- va_end (ap);
- return -1;
- }
-
- if (s[maxsize - 1] != '\0')
- {
- __set_errno (E2BIG);
- return -1;
- }
-
- dest += done;
-
- if (!cs_precedes)
- {
- if (sign_posn == 3)
- {
- if (sep_by_space == 1)
- out_char (' ');
- out_string (sign_string);
- }
-
- if (print_curr_symbol)
- {
- if ((sign_posn == 3 && sep_by_space == 2)
- || (sign_posn == 2 && sep_by_space == 1)
- || (sign_posn == 0 && sep_by_space == 1))
- out_char (' ');
- out_string (currency_symbol);
- if (sign_posn == 4)
- {
- if (sep_by_space == 2)
- out_char (' ');
- out_string (sign_string);
- }
- }
- }
-
- if (sign_posn == 2)
- {
- if (sep_by_space == 2)
- out_char (' ');
- out_string (sign_string);
- }
-
- if (sign_posn == 0 && is_negative)
- out_char (right_paren);
-
- /* Now test whether the output width is filled. */
- if (dest - startp < width)
- {
- if (left)
- /* We simply have to fill using spaces. */
- do
- out_char (' ');
- while (dest - startp < width);
- else
- {
- int dist = width - (dest - startp);
- char *cp;
- for (cp = dest - 1; cp >= startp; --cp)
- cp[dist] = cp[0];
-
- dest += dist;
-
- do
- startp[--dist] = ' ';
- while (dist > 0);
- }
- }
- }
-
- /* Terminate the string. */
- *dest = '\0';
+ ssize_t res = __vstrfmon_l_internal (s, maxsize, _NL_CURRENT_LOCALE,
+ format, ap, 0);
va_end (ap);
- return dest - s;
+ return res;
}
+ldbl_strong_alias (__strfmon, strfmon)
projects / thirdparty / glibc.git / blobdiff