mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-15 04:20:28 +08:00
66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
/* Iterator for grouping a number while scanning it forward.
|
|
Copyright (C) 2022-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
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
|
|
Lesser General Public License for more details.
|
|
|
|
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/>. */
|
|
|
|
#ifndef GROUPING_ITERATOR_H
|
|
#define GROUPING_ITERATOR_H
|
|
|
|
#include <locale.h>
|
|
#include <stdbool.h>
|
|
|
|
struct grouping_iterator
|
|
{
|
|
/* Number of characters in the current group. If this reaches zero,
|
|
a thousands separator needs to be emittted. */
|
|
unsigned int remaining_in_current_group;
|
|
|
|
/* Number of characters remaining in the number. This is used to
|
|
detect the start of the non-repeating groups. */
|
|
unsigned int remaining;
|
|
|
|
/* Points to the current grouping descriptor. */
|
|
const char *groupings;
|
|
|
|
/* Total number of characters in the non-repeating groups. */
|
|
unsigned int non_repeating_groups;
|
|
|
|
/* Number of separators that will be inserted if the whole number is
|
|
processed. (Does not change during iteration.) */
|
|
unsigned int separators;
|
|
};
|
|
|
|
struct __locale_data;
|
|
|
|
/* Initializes *IT with the data from LOCDATA (which must be for
|
|
LC_MONETARY or LC_NUMERIC). DIGITS is the length of the number.
|
|
Returns true if grouping is active, false if not. */
|
|
bool __grouping_iterator_init (struct grouping_iterator *it,
|
|
int category, locale_t loc,
|
|
unsigned int digits) attribute_hidden;
|
|
|
|
/* Initializes *IT with no grouping information for a string of length
|
|
DIGITS, and return false to indicate no grouping. */
|
|
bool __grouping_iterator_init_none (struct grouping_iterator *it,
|
|
unsigned int digits)
|
|
attribute_hidden;
|
|
|
|
/* Advances to the next character and returns true if a thousands
|
|
separator should be inserted before emitting it. */
|
|
bool __grouping_iterator_next (struct grouping_iterator *it);
|
|
|
|
#endif /* GROUPING_ITERATOR_H */
|