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2964 need POSIX 2008 locale object support
Reviewed by: Robert Mustacchi <rm@joyent.com>
@@ -1,6 +1,7 @@
/*
+ * Copyright 2013 Garrett D'Amore <garrett@damore.org>
* Copyright 2010 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -39,10 +40,13 @@
#include <monetary.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include "localeimpl.h"
+#include "lmonetary.h"
+#include "lnumeric.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) */
@@ -58,11 +62,11 @@
goto e2big_error; \
*dst++ = CH; \
}
#define PRINTS(STR) { \
- char *tmps = STR; \
+ const char *tmps = STR; \
while (*tmps != '\0') \
PRINT(*tmps++); \
}
#define GET_NUMBER(VAR) { \
@@ -85,26 +89,27 @@
*--bufend = *(avalue+avalue_size+padded); \
} \
}
#define GRPSEP { \
- *--bufend = thousands_sep; \
+ bufend -= thousands_len; \
+ (void) memcpy(bufend, thousands_sep, thousands_len); \
groups++; \
}
-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);
+static void setup_vars(const struct lc_monetary *, int, char *, char *, char *,
+ const char **);
+static int calc_left_pad(const struct lc_monetary *, int, const char *);
+static char *format_grouped_double(const struct lc_monetary *,
+ const struct lc_numeric *, double, int *, int, int, int);
ssize_t
-strfmon(char *_RESTRICT_KYWD s, size_t maxsize,
- const char *_RESTRICT_KYWD format, ...)
+strfmon_impl(char *_RESTRICT_KYWD s, size_t maxsize, locale_t loc,
+ const char *_RESTRICT_KYWD format, va_list ap)
{
- 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 */
@@ -112,22 +117,24 @@
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 */
+ char cs_precedes; /* values from struct lc_monetary */
char sep_by_space;
char sign_posn;
- char *signstr;
- char *currency_symbol;
+ const char *signstr;
+ const char *currency_symbol;
char *tmpptr; /* temporary vars */
int sverrno;
+ const struct lc_monetary *lmon; /* monetary structure */
+ const struct lc_numeric *lnum; /* numeric structure */
- va_start(ap, format);
+ lmon = loc->monetary;
+ lnum = loc->numeric;
- lc = localeconv();
dst = s;
fmt = format;
asciivalue = NULL;
currency_symbol = NULL;
pad_size = 0;
@@ -229,22 +236,18 @@
default:
/* required char 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);
+ currency_symbol = lmon->int_curr_symbol;
+ /* by definition three letters followed by a space */
if (currency_symbol != NULL)
- space_char = *(currency_symbol+3);
+ space_char = currency_symbol[3];
} else
- currency_symbol = strdup(lc->currency_symbol);
+ currency_symbol = lmon->currency_symbol;
- if (currency_symbol == NULL)
- goto end_error; /* ENOMEM. */
-
/* value itself */
value = va_arg(ap, double);
/* detect sign */
if (value < 0) {
@@ -252,28 +255,28 @@
value = -value;
}
/* fill left_prec with amount of padding chars */
if (left_prec >= 0) {
- pad_size = __calc_left_pad((flags ^ IS_NEGATIVE),
+ pad_size = calc_left_pad(lmon, (flags ^ IS_NEGATIVE),
currency_symbol) -
- __calc_left_pad(flags, currency_symbol);
+ calc_left_pad(lmon, flags, currency_symbol);
if (pad_size < 0)
pad_size = 0;
}
if (asciivalue != NULL)
free(asciivalue);
- asciivalue = __format_grouped_double(value, &flags,
+ asciivalue = format_grouped_double(lmon, lnum, 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);
+ setup_vars(lmon, flags, &cs_precedes, &sep_by_space,
+ &sign_posn, &signstr);
/*
* Description of some LC_MONETARY's values:
*
* p_cs_precedes & n_cs_precedes
@@ -313,11 +316,11 @@
PRINT('(');
if (cs_precedes == 1) {
if (sign_posn == 1 || sign_posn == 3) {
PRINTS(signstr);
- if (sep_by_space == 2) /* XXX: ? */
+ if (sep_by_space == 2)
PRINT(' ');
}
if (!(flags & SUPRESS_CURR_SYMBOL)) {
PRINTS(currency_symbol);
@@ -380,13 +383,11 @@
}
}
}
PRINT('\0');
- va_end(ap);
free(asciivalue);
- free(currency_symbol);
return (dst - s - 1); /* size of put data except trailing '\0' */
e2big_error:
errno = E2BIG;
goto end_error;
@@ -396,65 +397,87 @@
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)
+ssize_t
+strfmon(char *_RESTRICT_KYWD s, size_t maxsize,
+ const char *_RESTRICT_KYWD format, ...)
{
+ va_list ap;
+ ssize_t ret;
- struct lconv *lc = localeconv();
+ va_start(ap, format);
+ ret = strfmon_impl(s, maxsize, uselocale(NULL), format, ap);
+ va_end(ap);
+ return (ret);
+}
+ssize_t
+strfmon_l(char *_RESTRICT_KYWD s, size_t maxsize, locale_t loc,
+ const char *_RESTRICT_KYWD format, ...)
+{
+ ssize_t ret;
+ va_list ap;
+ va_start(ap, format);
+ ret = strfmon_impl(s, maxsize, loc, format, ap);
+ va_end(ap);
+ return (ret);
+}
+
+static void
+setup_vars(const struct lc_monetary *lmon, int flags, char *cs_precedes,
+ char *sep_by_space, char *sign_posn, const char **signstr)
+{
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] == '\0') ? "-"
- : lc->negative_sign;
+ *cs_precedes = lmon->int_n_cs_precedes[0];
+ *sep_by_space = lmon->int_n_sep_by_space[0];
+ *sign_posn = (flags & PARENTH_POSN) ? 0 :
+ lmon->int_n_sign_posn[0];
+ *signstr = (lmon->negative_sign[0] == '\0') ? "-" :
+ lmon->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;
+ *cs_precedes = lmon->int_p_cs_precedes[0];
+ *sep_by_space = lmon->int_p_sep_by_space[0];
+ *sign_posn = (flags & PARENTH_POSN) ? 0 :
+ lmon->int_p_sign_posn[0];
+ *signstr = lmon->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] == '\0') ? "-"
- : lc->negative_sign;
+ *cs_precedes = lmon->n_cs_precedes[0];
+ *sep_by_space = lmon->n_sep_by_space[0];
+ *sign_posn = (flags & PARENTH_POSN) ? 0 : lmon->n_sign_posn[0];
+ *signstr = (lmon->negative_sign[0] == '\0') ? "-" :
+ lmon->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;
+ *cs_precedes = lmon->p_cs_precedes[0];
+ *sep_by_space = lmon->p_sep_by_space[0];
+ *sign_posn = (flags & PARENTH_POSN) ? 0 : lmon->p_sign_posn[0];
+ *signstr = lmon->positive_sign;
}
- /* Set defult values for unspecified information. */
+ /* Set default 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)
+calc_left_pad(const struct lc_monetary *lmon, int flags, const char *cur_symb)
{
-
- char cs_precedes, sep_by_space, sign_posn, *signstr;
+ char cs_precedes, sep_by_space, sign_posn;
+ const char *signstr;
int left_chars = 0;
- __setup_vars(flags, &cs_precedes, &sep_by_space, &sign_posn, &signstr);
+ setup_vars(lmon, 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++;
@@ -471,11 +494,11 @@
}
return (left_chars);
}
static int
-get_groups(int size, char *grouping)
+get_groups(int size, const char *grouping)
{
int chars = 0;
if (*grouping == CHAR_MAX || *grouping <= 0) /* no grouping ? */
@@ -496,12 +519,13 @@
return (chars);
}
/* convert double to ASCII */
static char *
-__format_grouped_double(double value, int *flags,
- int left_prec, int right_prec, int pad_char)
+format_grouped_double(const struct lc_monetary *lmon,
+ const struct lc_numeric *lnum,
+ double value, int *flags, int left_prec, int right_prec, int pad_char)
{
char *rslt;
char *avalue;
int avalue_size;
@@ -510,35 +534,39 @@
size_t bufsize;
char *bufend;
int padded;
- struct lconv *lc = localeconv();
- char *grouping;
- char decimal_point;
- char thousands_sep;
+ const char *grouping;
+ const char *decimal_point;
+ const char *thousands_sep;
+ int decimal_len;
+ int thousands_len;
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;
+ grouping = lmon->mon_grouping;
+ decimal_point = lmon->mon_decimal_point;
+ if (*decimal_point == '\0')
+ decimal_point = lnum->decimal_point;
+ thousands_sep = lmon->mon_thousands_sep;
+ if (*thousands_sep == '\0')
+ thousands_sep = lnum->thousands_sep;
+ decimal_len = strlen(decimal_point); /* usually 1 */
+ thousands_len = strlen(thousands_sep); /* 0 or 1 usually */
+
/* 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;
+ right_prec = lmon->int_frac_digits[0];
else
- right_prec = lc->frac_digits;
+ right_prec = lmon->frac_digits[0];
if (right_prec == CHAR_MAX) /* POSIX locale ? */
right_prec = 2;
}
@@ -550,20 +578,28 @@
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 */
+ /*
+ * Make sure that we've enough space for result string.
+ * This assumes that digits take up at least much space as
+ * grouping and radix characters. The worst case currently known
+ * is for Arabic, where two-byte UTF-8 sequences are used for both
+ * decimal and thousands seperators, and groups can be a small as two
+ * decimal digits. This will do no worse than doubling the storage
+ * requirement.
+ */
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 */
+ /* skip spaces at beginning */
padded = 0;
while (avalue[padded] == ' ') {
padded++;
avalue_size--;
}
@@ -570,16 +606,17 @@
if (right_prec > 0) {
bufend -= right_prec;
(void) memcpy(bufend, avalue + avalue_size+padded-right_prec,
right_prec);
- *--bufend = decimal_point;
- avalue_size -= (right_prec + 1);
+ bufend -= decimal_len;
+ (void) memcpy(bufend, decimal_point, decimal_len);
+ avalue_size -= (right_prec + decimal_len);
}
if ((*flags & NEED_GROUPING) &&
- thousands_sep != '\0' && /* XXX: need investigation */
+ thousands_len != 0 &&
*grouping != CHAR_MAX &&
*grouping > 0) {
while (avalue_size > (int)*grouping) {
GRPCPY(*grouping);
GRPSEP;