diff options
Diffstat (limited to 'winsup/cygwin/libc/strfmon.c')
| -rw-r--r-- | winsup/cygwin/libc/strfmon.c | 622 |
1 files changed, 0 insertions, 622 deletions
diff --git a/winsup/cygwin/libc/strfmon.c b/winsup/cygwin/libc/strfmon.c deleted file mode 100644 index 79f8ab461..000000000 --- a/winsup/cygwin/libc/strfmon.c +++ /dev/null @@ -1,622 +0,0 @@ -/*- - * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - -#include <sys/cdefs.h> -#if 0 -__FBSDID("$FreeBSD: src/lib/libc/stdlib/strfmon.c,v 1.19 2008/04/24 07:49:00 ru Exp $"); -#endif - -#include "winsup.h" -#include <sys/types.h> -#include <ctype.h> -#include <errno.h> -#include <limits.h> -#include <locale.h> -#include <monetary.h> -#include <stdarg.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -/* internal flags */ -#define NEED_GROUPING 0x01 /* print digits grouped (default) */ -#define SIGN_POSN_USED 0x02 /* '+' or '(' usage flag */ -#define LOCALE_POSN 0x04 /* use locale defined +/- (default) */ -#define PARENTH_POSN 0x08 /* enclose negative amount in () */ -#define SUPRESS_CURR_SYMBOL 0x10 /* supress the currency from output */ -#define LEFT_JUSTIFY 0x20 /* left justify */ -#define USE_INTL_CURRENCY 0x40 /* use international currency symbol */ -#define IS_NEGATIVE 0x80 /* is argument value negative ? */ - -/* internal macros */ -#define PRINT(CH) do { \ - if (dst >= s + maxsize) \ - goto e2big_error; \ - *dst++ = CH; \ -} while (0) - -#define PRINTS(STR) do { \ - char *tmps = STR; \ - while (*tmps != '\0') \ - PRINT(*tmps++); \ -} while (0) - -#define GET_NUMBER(VAR) do { \ - VAR = 0; \ - while (isdigit((unsigned char)*fmt)) { \ - if (VAR > INT_MAX / 10) \ - goto e2big_error; \ - VAR *= 10; \ - VAR += *fmt - '0'; \ - if (VAR < 0) \ - goto e2big_error; \ - fmt++; \ - } \ -} while (0) - -#define GRPCPY(howmany) do { \ - int i = howmany; \ - while (i-- > 0) { \ - avalue_size--; \ - *--bufend = *(avalue+avalue_size+padded); \ - } \ -} while (0) - -#define GRPSEP do { \ - *--bufend = thousands_sep; \ - groups++; \ -} while (0) - -static void __setup_vars(int, char *, char *, char *, char **); -static int __calc_left_pad(int, char *); -static char *__format_grouped_double(double, int *, int, int, int); - -ssize_t -strfmon(char * __restrict s, size_t maxsize, const char * __restrict format, - ...) -{ - va_list ap; - char *dst; /* output destination pointer */ - const char *fmt; /* current format poistion pointer */ - struct lconv *lc; /* pointer to lconv structure */ - char *asciivalue; /* formatted double pointer */ - - int flags; /* formatting options */ - int pad_char; /* padding character */ - int pad_size; /* pad size */ - int width; /* field width */ - int left_prec; /* left precision */ - int right_prec; /* right precision */ - double value; /* just value */ - char space_char = ' '; /* space after currency */ - - char cs_precedes, /* values gathered from struct lconv */ - sep_by_space, - sign_posn, - *signstr, - *currency_symbol; - - char *tmpptr; /* temporary vars */ - int sverrno; - - va_start(ap, format); - - lc = localeconv(); - dst = s; - fmt = format; - asciivalue = NULL; - currency_symbol = NULL; - pad_size = 0; - - while (*fmt) { - /* pass nonformating characters AS IS */ - if (*fmt != '%') - goto literal; - - /* '%' found ! */ - - /* "%%" mean just '%' */ - if (*(fmt+1) == '%') { - fmt++; - literal: - PRINT(*fmt++); - continue; - } - - /* set up initial values */ - flags = (NEED_GROUPING|LOCALE_POSN); - pad_char = ' '; /* padding character is "space" */ - left_prec = -1; /* no left precision specified */ - right_prec = -1; /* no right precision specified */ - width = -1; /* no width specified */ - value = 0; /* we have no value to print now */ - - /* Flags */ - while (1) { - switch (*++fmt) { - case '=': /* fill character */ - pad_char = *++fmt; - if (pad_char == '\0') - goto format_error; - continue; - case '^': /* not group currency */ - flags &= ~(NEED_GROUPING); - continue; - case '+': /* use locale defined signs */ - if (flags & SIGN_POSN_USED) - goto format_error; - flags |= (SIGN_POSN_USED|LOCALE_POSN); - continue; - case '(': /* enclose negatives with () */ - if (flags & SIGN_POSN_USED) - goto format_error; - flags |= (SIGN_POSN_USED|PARENTH_POSN); - continue; - case '!': /* suppress currency symbol */ - flags |= SUPRESS_CURR_SYMBOL; - continue; - case '-': /* alignment (left) */ - flags |= LEFT_JUSTIFY; - continue; - default: - break; - } - break; - } - - /* field Width */ - if (isdigit((unsigned char)*fmt)) { - GET_NUMBER(width); - /* Do we have enough space to put number with - * required width ? - */ - if ((unsigned int)width >= maxsize - (dst - s)) - goto e2big_error; - } - - /* Left precision */ - if (*fmt == '#') { - if (!isdigit((unsigned char)*++fmt)) - goto format_error; - GET_NUMBER(left_prec); - if ((unsigned int)left_prec >= maxsize - (dst - s)) - goto e2big_error; - } - - /* Right precision */ - if (*fmt == '.') { - if (!isdigit((unsigned char)*++fmt)) - goto format_error; - GET_NUMBER(right_prec); - if ((unsigned int)right_prec >= maxsize - (dst - s) - - left_prec) - goto e2big_error; - } - - /* Conversion Characters */ - switch (*fmt++) { - case 'i': /* use internaltion currency format */ - flags |= USE_INTL_CURRENCY; - break; - case 'n': /* use national currency format */ - flags &= ~(USE_INTL_CURRENCY); - break; - default: /* required character is missing or - premature EOS */ - goto format_error; - } - - if (currency_symbol != NULL) - free(currency_symbol); - if (flags & USE_INTL_CURRENCY) { - currency_symbol = strdup(lc->int_curr_symbol); - if (currency_symbol != NULL) { - space_char = *(currency_symbol+3); - *(currency_symbol+3) = '\0'; - } - } else - currency_symbol = strdup(lc->currency_symbol); - - if (currency_symbol == NULL) - goto end_error; /* ENOMEM. */ - - /* value itself */ - value = va_arg(ap, double); - - /* detect sign */ - if (value < 0) { - flags |= IS_NEGATIVE; - value = -value; - } - - /* fill left_prec with amount of padding chars */ - if (left_prec >= 0) { - pad_size = __calc_left_pad((flags ^ IS_NEGATIVE), - currency_symbol) - - __calc_left_pad(flags, currency_symbol); - if (pad_size < 0) - pad_size = 0; - } - - if (asciivalue != NULL) - free(asciivalue); - asciivalue = __format_grouped_double(value, &flags, - left_prec, right_prec, pad_char); - if (asciivalue == NULL) - goto end_error; /* errno already set */ - /* to ENOMEM by malloc() */ - - /* set some variables for later use */ - __setup_vars(flags, &cs_precedes, &sep_by_space, - &sign_posn, &signstr); - - /* - * Description of some LC_MONETARY's values: - * - * p_cs_precedes & n_cs_precedes - * - * = 1 - $currency_symbol precedes the value - * for a monetary quantity with a non-negative value - * = 0 - symbol succeeds the value - * - * p_sep_by_space & n_sep_by_space - * - * = 0 - no space separates $currency_symbol - * from the value for a monetary quantity with a - * non-negative value - * = 1 - space separates the symbol from the value - * = 2 - space separates the symbol and the sign string, - * if adjacent. - * - * p_sign_posn & n_sign_posn - * - * = 0 - parentheses enclose the quantity and the - * $currency_symbol - * = 1 - the sign string precedes the quantity and the - * $currency_symbol - * = 2 - the sign string succeeds the quantity and the - * $currency_symbol - * = 3 - the sign string precedes the $currency_symbol - * = 4 - the sign string succeeds the $currency_symbol - * - */ - - tmpptr = dst; - - while (pad_size-- > 0) - PRINT(' '); - - if (sign_posn == 0 && (flags & IS_NEGATIVE)) - PRINT('('); - - if (cs_precedes == 1) { - if (sign_posn == 1 || sign_posn == 3) { - PRINTS(signstr); - if (sep_by_space == 2) /* XXX: ? */ - PRINT(' '); - } - - if (!(flags & SUPRESS_CURR_SYMBOL)) { - PRINTS(currency_symbol); - - if (sign_posn == 4) { - if (sep_by_space == 2) - PRINT(space_char); - PRINTS(signstr); - if (sep_by_space == 1) - PRINT(' '); - } else if (sep_by_space == 1) - PRINT(space_char); - } - } else if (sign_posn == 1) - PRINTS(signstr); - - PRINTS(asciivalue); - - if (cs_precedes == 0) { - if (sign_posn == 3) { - if (sep_by_space == 1) - PRINT(' '); - PRINTS(signstr); - } - - if (!(flags & SUPRESS_CURR_SYMBOL)) { - if ((sign_posn == 3 && sep_by_space == 2) - || (sep_by_space == 1 - && (sign_posn == 0 - || sign_posn == 1 - || sign_posn == 2 - || sign_posn == 4))) - PRINT(space_char); - PRINTS(currency_symbol); /* XXX: len */ - if (sign_posn == 4) { - if (sep_by_space == 2) - PRINT(' '); - PRINTS(signstr); - } - } - } - - if (sign_posn == 2) { - if (sep_by_space == 2) - PRINT(' '); - PRINTS(signstr); - } - - if (sign_posn == 0 && (flags & IS_NEGATIVE)) - PRINT(')'); - - if (dst - tmpptr < width) { - if (flags & LEFT_JUSTIFY) { - while (dst - tmpptr < width) - PRINT(' '); - } else { - pad_size = dst-tmpptr; - memmove(tmpptr + width-pad_size, tmpptr, - pad_size); - memset(tmpptr, ' ', width-pad_size); - dst += width-pad_size; - } - } - } - - PRINT('\0'); - va_end(ap); - free(asciivalue); - free(currency_symbol); - return (dst - s - 1); /* return size of put data except trailing '\0' */ - -e2big_error: - errno = E2BIG; - goto end_error; - -format_error: - errno = EINVAL; - -end_error: - sverrno = errno; - if (asciivalue != NULL) - free(asciivalue); - if (currency_symbol != NULL) - free(currency_symbol); - errno = sverrno; - va_end(ap); - return (-1); -} - -static void -__setup_vars(int flags, char *cs_precedes, char *sep_by_space, - char *sign_posn, char **signstr) { - - struct lconv *lc = localeconv(); - static char negative[] = "-"; - - if ((flags & IS_NEGATIVE) && (flags & USE_INTL_CURRENCY)) { - *cs_precedes = lc->int_n_cs_precedes; - *sep_by_space = lc->int_n_sep_by_space; - *sign_posn = (flags & PARENTH_POSN) ? 0 : lc->int_n_sign_posn; - *signstr = (*lc->negative_sign == '\0') ? negative - : lc->negative_sign; - } else if (flags & USE_INTL_CURRENCY) { - *cs_precedes = lc->int_p_cs_precedes; - *sep_by_space = lc->int_p_sep_by_space; - *sign_posn = (flags & PARENTH_POSN) ? 0 : lc->int_p_sign_posn; - *signstr = lc->positive_sign; - } else if (flags & IS_NEGATIVE) { - *cs_precedes = lc->n_cs_precedes; - *sep_by_space = lc->n_sep_by_space; - *sign_posn = (flags & PARENTH_POSN) ? 0 : lc->n_sign_posn; - *signstr = (*lc->negative_sign == '\0') ? negative - : lc->negative_sign; - } else { - *cs_precedes = lc->p_cs_precedes; - *sep_by_space = lc->p_sep_by_space; - *sign_posn = (flags & PARENTH_POSN) ? 0 : lc->p_sign_posn; - *signstr = lc->positive_sign; - } - - /* Set defult values for unspecified information. */ - if (*cs_precedes != 0) - *cs_precedes = 1; - if (*sep_by_space == CHAR_MAX) - *sep_by_space = 0; - if (*sign_posn == CHAR_MAX) - *sign_posn = 0; -} - -static int -__calc_left_pad(int flags, char *cur_symb) { - - char cs_precedes, sep_by_space, sign_posn, *signstr; - int left_chars = 0; - - __setup_vars(flags, &cs_precedes, &sep_by_space, &sign_posn, &signstr); - - if (cs_precedes != 0) { - left_chars += strlen(cur_symb); - if (sep_by_space != 0) - left_chars++; - } - - switch (sign_posn) { - case 1: - 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 = calloc(1, bufsize); - if (rslt == NULL) { - free(avalue); - return (NULL); - } - 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, - 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, 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, padded); - } - - bufsize = bufsize - (bufend - rslt) + 1; - memmove(rslt, bufend, bufsize); - free(avalue); - return (rslt); -} |