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/* Align/Truncate a string in a given screen width
Copyright (C) 2009-2022 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <stddef.h>
#include <stdlib.h>
typedef enum { MBS_ALIGN_LEFT, MBS_ALIGN_RIGHT, MBS_ALIGN_CENTER } mbs_align_t;
enum {
/* Use unibyte mode for invalid multibyte strings
or when heap memory is exhausted. */
MBA_UNIBYTE_FALLBACK = 0x0001,
/* As an optimization, don't do multibyte processing
when we know no multibyte characters are present. */
MBA_UNIBYTE_ONLY = 0x0002,
/* Don't add leading padding. */
MBA_NO_LEFT_PAD = 0x0004,
/* Don't add trailing padding. */
MBA_NO_RIGHT_PAD = 0x0008
#if 0 /* Other possible options. */
/* Skip invalid multibyte chars rather than failing. */
MBA_IGNORE_INVALID
/* Align multibyte strings using "figure space" (\u2007). */
MBA_USE_FIGURE_SPACE
/* Don't truncate. */
MBA_NO_TRUNCATE
/* Ensure no leading whitespace. */
MBA_LSTRIP
/* Ensure no trailing whitespace. */
MBA_RSTRIP
#endif
};
size_t
mbsalign (char const *src, char *dest, size_t dest_size,
size_t *width, mbs_align_t align, int flags)
_GL_ATTRIBUTE_NONNULL ();
char *
ambsalign (char const *src, size_t *width, mbs_align_t align, int flags)
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE
_GL_ATTRIBUTE_NONNULL ();
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