2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
623 lines
16 KiB
C
623 lines
16 KiB
C
/* $NetBSD: strfmon.c,v 1.7 2009/01/30 23:46:03 lukem Exp $ */
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/*-
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* Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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__FBSDID("$FreeBSD: src/lib/libc/stdlib/strfmon.c,v 1.14 2003/03/20 08:18:55 ache Exp $");
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#else
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__RCSID("$NetBSD: strfmon.c,v 1.7 2009/01/30 23:46:03 lukem Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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#if defined(__NetBSD__) || defined(__minix)
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#include "namespace.h"
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#include <monetary.h>
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#endif
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#include <sys/types.h>
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#include <ctype.h>
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#include <errno.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stddef.h>
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/* internal flags */
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#define NEED_GROUPING 0x01 /* print digits grouped (default) */
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#define SIGN_POSN_USED 0x02 /* '+' or '(' usage flag */
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#define LOCALE_POSN 0x04 /* use locale defined +/- (default) */
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#define PARENTH_POSN 0x08 /* enclose negative amount in () */
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#define SUPRESS_CURR_SYMBOL 0x10 /* supress the currency from output */
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#define LEFT_JUSTIFY 0x20 /* left justify */
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#define USE_INTL_CURRENCY 0x40 /* use international currency symbol */
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#define IS_NEGATIVE 0x80 /* is argument value negative ? */
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/* internal macros */
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#define PRINT(CH) do { \
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if (dst >= s + maxsize) \
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goto e2big_error; \
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*dst++ = CH; \
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} while (/* CONSTCOND */ 0)
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#define PRINTS(STR) do { \
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const char *tmps = STR; \
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while (*tmps != '\0') \
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PRINT(*tmps++); \
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} while (/* CONSTCOND */ 0)
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#define GET_NUMBER(VAR) do { \
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VAR = 0; \
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while (isdigit((unsigned char)*fmt)) { \
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VAR *= 10; \
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VAR += *fmt - '0'; \
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if (VAR > 0x00ffffff) \
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goto e2big_error; \
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fmt++; \
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} \
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} while (/* CONSTCOND */ 0)
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#define GRPCPY(howmany) do { \
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int i = howmany; \
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while (i-- > 0) { \
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avalue_size--; \
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*--bufend = *(avalue+avalue_size+padded); \
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} \
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} while (/* CONSTCOND */ 0)
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#define GRPSEP do { \
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*--bufend = thousands_sep; \
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groups++; \
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} while (/* CONSTCOND */ 0)
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static void __setup_vars(int, char *, char *, char *, const char **);
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static int __calc_left_pad(int, char *);
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static char *__format_grouped_double(double, int *, int, int, int);
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ssize_t
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strfmon(char * __restrict s, size_t maxsize, const char * __restrict format,
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...)
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{
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va_list ap;
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char *dst; /* output destination pointer */
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const char *fmt; /* current format poistion pointer */
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struct lconv *lc; /* pointer to lconv structure */
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char *asciivalue; /* formatted double pointer */
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int flags; /* formatting options */
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int pad_char; /* padding character */
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int pad_size; /* pad size */
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int width; /* field width */
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int left_prec; /* left precision */
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int right_prec; /* right precision */
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double value; /* just value */
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char space_char = ' '; /* space after currency */
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char cs_precedes, /* values gathered from struct lconv */
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sep_by_space,
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sign_posn,
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*currency_symbol;
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const char *signstr;
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char *tmpptr; /* temporary vars */
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int sverrno;
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va_start(ap, format);
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lc = localeconv();
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dst = s;
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fmt = format;
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asciivalue = NULL;
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currency_symbol = NULL;
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pad_size = 0;
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while (*fmt) {
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/* pass nonformating characters AS IS */
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if (*fmt != '%')
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goto literal;
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/* '%' found ! */
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/* "%%" mean just '%' */
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if (*(fmt+1) == '%') {
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fmt++;
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literal:
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PRINT(*fmt++);
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continue;
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}
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/* set up initial values */
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flags = (NEED_GROUPING|LOCALE_POSN);
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pad_char = ' '; /* padding character is "space" */
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left_prec = -1; /* no left precision specified */
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right_prec = -1; /* no right precision specified */
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width = -1; /* no width specified */
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value = 0; /* we have no value to print now */
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/* Flags */
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while (/* CONSTCOND */ 1) {
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switch (*++fmt) {
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case '=': /* fill character */
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pad_char = *++fmt;
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if (pad_char == '\0')
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goto format_error;
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continue;
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case '^': /* not group currency */
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flags &= ~(NEED_GROUPING);
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continue;
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case '+': /* use locale defined signs */
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if (flags & SIGN_POSN_USED)
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goto format_error;
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flags |= (SIGN_POSN_USED|LOCALE_POSN);
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continue;
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case '(': /* enclose negatives with () */
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if (flags & SIGN_POSN_USED)
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goto format_error;
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flags |= (SIGN_POSN_USED|PARENTH_POSN);
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continue;
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case '!': /* suppress currency symbol */
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flags |= SUPRESS_CURR_SYMBOL;
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continue;
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case '-': /* alignment (left) */
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flags |= LEFT_JUSTIFY;
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continue;
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default:
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break;
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}
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break;
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}
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/* field Width */
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if (isdigit((unsigned char)*fmt)) {
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ptrdiff_t d = dst - s;
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GET_NUMBER(width);
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/* Do we have enough space to put number with
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* required width ?
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*/
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if ((size_t)(d + width) >= maxsize)
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goto e2big_error;
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}
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/* Left precision */
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if (*fmt == '#') {
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if (!isdigit((unsigned char)*++fmt))
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goto format_error;
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GET_NUMBER(left_prec);
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}
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/* Right precision */
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if (*fmt == '.') {
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if (!isdigit((unsigned char)*++fmt))
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goto format_error;
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GET_NUMBER(right_prec);
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}
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/* Conversion Characters */
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switch (*fmt++) {
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case 'i': /* use internaltion currency format */
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flags |= USE_INTL_CURRENCY;
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break;
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case 'n': /* use national currency format */
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flags &= ~(USE_INTL_CURRENCY);
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break;
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default: /* required character is missing or
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premature EOS */
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goto format_error;
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}
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if (currency_symbol)
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free(currency_symbol);
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if (flags & USE_INTL_CURRENCY) {
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currency_symbol = strdup(lc->int_curr_symbol);
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if (currency_symbol != NULL)
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space_char = *(currency_symbol+3);
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} else
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currency_symbol = strdup(lc->currency_symbol);
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if (currency_symbol == NULL)
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goto end_error; /* ENOMEM. */
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/* value itself */
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value = va_arg(ap, double);
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/* detect sign */
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if (value < 0) {
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flags |= IS_NEGATIVE;
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value = -value;
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}
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/* fill left_prec with amount of padding chars */
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if (left_prec >= 0) {
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pad_size = __calc_left_pad((flags ^ IS_NEGATIVE),
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currency_symbol) -
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__calc_left_pad(flags, currency_symbol);
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if (pad_size < 0)
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pad_size = 0;
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}
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asciivalue = __format_grouped_double(value, &flags,
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left_prec, right_prec, pad_char);
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if (asciivalue == NULL)
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goto end_error; /* errno already set */
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/* to ENOMEM by malloc() */
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/* set some variables for later use */
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__setup_vars(flags, &cs_precedes, &sep_by_space,
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&sign_posn, &signstr);
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/*
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* Description of some LC_MONETARY's values:
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*
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* p_cs_precedes & n_cs_precedes
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*
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* = 1 - $currency_symbol precedes the value
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* for a monetary quantity with a non-negative value
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* = 0 - symbol succeeds the value
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*
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* p_sep_by_space & n_sep_by_space
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*
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* = 0 - no space separates $currency_symbol
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* from the value for a monetary quantity with a
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* non-negative value
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* = 1 - space separates the symbol from the value
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* = 2 - space separates the symbol and the sign string,
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* if adjacent.
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*
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* p_sign_posn & n_sign_posn
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*
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* = 0 - parentheses enclose the quantity and the
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* $currency_symbol
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* = 1 - the sign string precedes the quantity and the
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* $currency_symbol
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* = 2 - the sign string succeeds the quantity and the
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* $currency_symbol
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* = 3 - the sign string precedes the $currency_symbol
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* = 4 - the sign string succeeds the $currency_symbol
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*
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*/
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tmpptr = dst;
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while (pad_size-- > 0)
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PRINT(' ');
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if (sign_posn == 0 && (flags & IS_NEGATIVE))
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PRINT('(');
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if (cs_precedes == 1) {
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if (sign_posn == 1 || sign_posn == 3) {
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PRINTS(signstr);
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if (sep_by_space == 2) /* XXX: ? */
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PRINT(' ');
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}
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if (!(flags & SUPRESS_CURR_SYMBOL)) {
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PRINTS(currency_symbol);
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if (sign_posn == 4) {
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if (sep_by_space == 2)
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PRINT(space_char);
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PRINTS(signstr);
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if (sep_by_space == 1)
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PRINT(' ');
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} else if (sep_by_space == 1)
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PRINT(space_char);
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}
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} else if (sign_posn == 1)
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PRINTS(signstr);
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PRINTS(asciivalue);
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if (cs_precedes == 0) {
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if (sign_posn == 3) {
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if (sep_by_space == 1)
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PRINT(' ');
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PRINTS(signstr);
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}
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if (!(flags & SUPRESS_CURR_SYMBOL)) {
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if ((sign_posn == 3 && sep_by_space == 2)
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|| (sep_by_space == 1
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&& (sign_posn == 0
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|| sign_posn == 1
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|| sign_posn == 2
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|| sign_posn == 4)))
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PRINT(space_char);
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PRINTS(currency_symbol); /* XXX: len */
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if (sign_posn == 4) {
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if (sep_by_space == 2)
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PRINT(' ');
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PRINTS(signstr);
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}
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}
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}
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if (sign_posn == 2) {
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if (sep_by_space == 2)
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PRINT(' ');
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PRINTS(signstr);
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}
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if (sign_posn == 0 && (flags & IS_NEGATIVE))
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PRINT(')');
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if (dst - tmpptr < width) {
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if (flags & LEFT_JUSTIFY) {
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while (dst - tmpptr < width)
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PRINT(' ');
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} else {
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pad_size = dst-tmpptr;
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memmove(tmpptr + width-pad_size, tmpptr,
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(size_t) pad_size);
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memset(tmpptr, ' ', (size_t) width-pad_size);
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dst += width-pad_size;
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}
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}
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}
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PRINT('\0');
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va_end(ap);
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free(asciivalue);
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free(currency_symbol);
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return (dst - s - 1); /* return size of put data except trailing '\0' */
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e2big_error:
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errno = E2BIG;
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goto end_error;
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format_error:
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errno = EINVAL;
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end_error:
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sverrno = errno;
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if (asciivalue != NULL)
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free(asciivalue);
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if (currency_symbol != NULL)
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free(currency_symbol);
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errno = sverrno;
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va_end(ap);
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return (-1);
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}
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static void
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__setup_vars(int flags, char *cs_precedes, char *sep_by_space,
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char *sign_posn, const char **signstr) {
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struct lconv *lc = localeconv();
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|
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if ((flags & IS_NEGATIVE) && (flags & USE_INTL_CURRENCY)) {
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*cs_precedes = lc->int_n_cs_precedes;
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*sep_by_space = lc->int_n_sep_by_space;
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*sign_posn = (flags & PARENTH_POSN) ? 0 : lc->int_n_sign_posn;
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*signstr = (lc->negative_sign == '\0') ? "-"
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: lc->negative_sign;
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} else if (flags & USE_INTL_CURRENCY) {
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*cs_precedes = lc->int_p_cs_precedes;
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*sep_by_space = lc->int_p_sep_by_space;
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*sign_posn = (flags & PARENTH_POSN) ? 0 : lc->int_p_sign_posn;
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*signstr = lc->positive_sign;
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} else if (flags & IS_NEGATIVE) {
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*cs_precedes = lc->n_cs_precedes;
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*sep_by_space = lc->n_sep_by_space;
|
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*sign_posn = (flags & PARENTH_POSN) ? 0 : lc->n_sign_posn;
|
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*signstr = (lc->negative_sign == '\0') ? "-"
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: lc->negative_sign;
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} else {
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*cs_precedes = lc->p_cs_precedes;
|
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*sep_by_space = lc->p_sep_by_space;
|
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*sign_posn = (flags & PARENTH_POSN) ? 0 : lc->p_sign_posn;
|
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*signstr = lc->positive_sign;
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}
|
|
|
|
/* Set defult values for unspecified information. */
|
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if (*cs_precedes != 0)
|
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*cs_precedes = 1;
|
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if (*sep_by_space == CHAR_MAX)
|
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*sep_by_space = 0;
|
|
if (*sign_posn == CHAR_MAX)
|
|
*sign_posn = 0;
|
|
}
|
|
|
|
static int
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|
__calc_left_pad(int flags, char *cur_symb) {
|
|
|
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char cs_precedes, sep_by_space, sign_posn;
|
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const char *signstr;
|
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int left_chars = 0;
|
|
|
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__setup_vars(flags, &cs_precedes, &sep_by_space, &sign_posn, &signstr);
|
|
|
|
if (cs_precedes != 0) {
|
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left_chars += strlen(cur_symb);
|
|
if (sep_by_space != 0)
|
|
left_chars++;
|
|
}
|
|
|
|
switch (sign_posn) {
|
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case 1:
|
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left_chars += strlen(signstr);
|
|
break;
|
|
case 3:
|
|
case 4:
|
|
if (cs_precedes != 0)
|
|
left_chars += strlen(signstr);
|
|
}
|
|
return (left_chars);
|
|
}
|
|
|
|
static int
|
|
get_groups(int size, char *grouping) {
|
|
|
|
int chars = 0;
|
|
|
|
if (*grouping == CHAR_MAX || *grouping <= 0) /* no grouping ? */
|
|
return (0);
|
|
|
|
while (size > (int)*grouping) {
|
|
chars++;
|
|
size -= (int)*grouping++;
|
|
/* no more grouping ? */
|
|
if (*grouping == CHAR_MAX)
|
|
break;
|
|
/* rest grouping with same value ? */
|
|
if (*grouping == 0) {
|
|
chars += (size - 1) / *(grouping - 1);
|
|
break;
|
|
}
|
|
}
|
|
return (chars);
|
|
}
|
|
|
|
/* convert double to ASCII */
|
|
static char *
|
|
__format_grouped_double(double value, int *flags,
|
|
int left_prec, int right_prec, int pad_char) {
|
|
|
|
char *rslt;
|
|
char *avalue;
|
|
int avalue_size;
|
|
char fmt[32];
|
|
|
|
size_t bufsize;
|
|
char *bufend;
|
|
|
|
int padded;
|
|
|
|
struct lconv *lc = localeconv();
|
|
char *grouping;
|
|
char decimal_point;
|
|
char thousands_sep;
|
|
|
|
int groups = 0;
|
|
|
|
grouping = lc->mon_grouping;
|
|
decimal_point = *lc->mon_decimal_point;
|
|
if (decimal_point == '\0')
|
|
decimal_point = *lc->decimal_point;
|
|
thousands_sep = *lc->mon_thousands_sep;
|
|
if (thousands_sep == '\0')
|
|
thousands_sep = *lc->thousands_sep;
|
|
|
|
/* fill left_prec with default value */
|
|
if (left_prec == -1)
|
|
left_prec = 0;
|
|
|
|
/* fill right_prec with default value */
|
|
if (right_prec == -1) {
|
|
if (*flags & USE_INTL_CURRENCY)
|
|
right_prec = lc->int_frac_digits;
|
|
else
|
|
right_prec = lc->frac_digits;
|
|
|
|
if (right_prec == CHAR_MAX) /* POSIX locale ? */
|
|
right_prec = 2;
|
|
}
|
|
|
|
if (*flags & NEED_GROUPING)
|
|
left_prec += get_groups(left_prec, grouping);
|
|
|
|
/* convert to string */
|
|
snprintf(fmt, sizeof(fmt), "%%%d.%df", left_prec + right_prec + 1,
|
|
right_prec);
|
|
avalue_size = asprintf(&avalue, fmt, value);
|
|
if (avalue_size < 0)
|
|
return (NULL);
|
|
|
|
/* make sure that we've enough space for result string */
|
|
bufsize = strlen(avalue)*2+1;
|
|
rslt = malloc(bufsize);
|
|
if (rslt == NULL) {
|
|
free(avalue);
|
|
return (NULL);
|
|
}
|
|
memset(rslt, 0, bufsize);
|
|
bufend = rslt + bufsize - 1; /* reserve space for trailing '\0' */
|
|
|
|
/* skip spaces at beggining */
|
|
padded = 0;
|
|
while (avalue[padded] == ' ') {
|
|
padded++;
|
|
avalue_size--;
|
|
}
|
|
|
|
if (right_prec > 0) {
|
|
bufend -= right_prec;
|
|
memcpy(bufend, avalue + avalue_size+padded-right_prec,
|
|
(size_t) right_prec);
|
|
*--bufend = decimal_point;
|
|
avalue_size -= (right_prec + 1);
|
|
}
|
|
|
|
if ((*flags & NEED_GROUPING) &&
|
|
thousands_sep != '\0' && /* XXX: need investigation */
|
|
*grouping != CHAR_MAX &&
|
|
*grouping > 0) {
|
|
while (avalue_size > (int)*grouping) {
|
|
GRPCPY(*grouping);
|
|
GRPSEP;
|
|
grouping++;
|
|
|
|
/* no more grouping ? */
|
|
if (*grouping == CHAR_MAX)
|
|
break;
|
|
|
|
/* rest grouping with same value ? */
|
|
if (*grouping == 0) {
|
|
grouping--;
|
|
while (avalue_size > *grouping) {
|
|
GRPCPY(*grouping);
|
|
GRPSEP;
|
|
}
|
|
}
|
|
}
|
|
if (avalue_size != 0)
|
|
GRPCPY(avalue_size);
|
|
padded -= groups;
|
|
|
|
} else {
|
|
bufend -= avalue_size;
|
|
memcpy(bufend, avalue+padded, (size_t) avalue_size);
|
|
if (right_prec == 0)
|
|
padded--; /* decrease assumed $decimal_point */
|
|
}
|
|
|
|
/* do padding with pad_char */
|
|
if (padded > 0) {
|
|
bufend -= padded;
|
|
memset(bufend, pad_char, (size_t) padded);
|
|
}
|
|
|
|
bufsize = bufsize - (bufend - rslt) + 1;
|
|
memmove(rslt, bufend, bufsize);
|
|
free(avalue);
|
|
return (rslt);
|
|
}
|