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/*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* Align/Truncate a string in a given screen width
* Copyright (C) 2009-2010 Free Software Foundation, Inc.
* Copyright (C) 2010-2013 Karel Zak <kzak@redhat.com>
*
* This program 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.
*/
#ifndef UTIL_LINUX_MBSALIGN_H
# define UTIL_LINUX_MBSALIGN_H
# include <stddef.h>
typedef enum { MBS_ALIGN_LEFT, MBS_ALIGN_RIGHT, MBS_ALIGN_CENTER } mbs_align_t;
enum {
/* Use unibyte mode for invalid multibyte strings or
or when heap memory is exhausted. */
MBA_UNIBYTE_FALLBACK = 0x0001,
#if 0 /* Other possible options. */
/* Skip invalid multibyte chars rather than failing */
MBA_IGNORE_INVALID = 0x0002,
/* Align multibyte strings using "figure space" (\u2007) */
MBA_USE_FIGURE_SPACE = 0x0004,
/* Don't add any padding */
MBA_TRUNCATE_ONLY = 0x0008,
/* Don't truncate */
MBA_PAD_ONLY = 0x0010,
#endif
};
extern size_t mbs_truncate(char *str, size_t *width);
extern size_t mbsalign (const char *src, char *dest,
size_t dest_size, size_t *width,
mbs_align_t align, int flags);
extern size_t mbsalign_with_padding (const char *src, char *dest, size_t dest_size,
size_t *width, mbs_align_t align, int flags,
int padchar);
extern size_t mbs_safe_nwidth(const char *buf, size_t bufsz, size_t *sz);
extern size_t mbs_safe_width(const char *s);
extern size_t mbs_nwidth(const char *buf, size_t bufsz);
extern size_t mbs_width(const char *s);
extern char *mbs_safe_encode(const char *s, size_t *width);
extern char *mbs_safe_encode_to_buffer(const char *s, size_t *width, char *buf, const char *safechars);
extern size_t mbs_safe_encode_size(size_t bytes);
extern size_t mbs_safe_decode_size(const char *s);
extern char *mbs_invalid_encode(const char *s, size_t *width);
extern char *mbs_invalid_encode_to_buffer(const char *s, size_t *width, char *buf);
#endif /* UTIL_LINUX_MBSALIGN_H */
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