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/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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; version 2 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/>. */
#ifndef _CHARMAP_H
#define _CHARMAP_H
#include <obstack.h>
#include <stdbool.h>
#include <stdint.h>
#include "repertoire.h"
#include "simple-hash.h"
struct width_rule
{
struct charseq *from;
struct charseq *to;
unsigned int width;
};
struct charmap_t
{
const char *code_set_name;
const char *repertoiremap;
int mb_cur_min;
int mb_cur_max;
struct width_rule *width_rules;
size_t nwidth_rules;
size_t nwidth_rules_max;
unsigned int width_default;
struct obstack mem_pool;
hash_table char_table;
hash_table byte_table;
hash_table ucs4_table;
};
/* This is the structure used for entries in the hash table. It represents
the sequence of bytes used for the coded character. */
struct charseq
{
const char *name;
uint32_t ucs4;
int nbytes;
unsigned char bytes[];
};
/* True if the encoding is not ASCII compatible. */
extern bool enc_not_ascii_compatible;
/* Prototypes for charmap handling functions. */
extern struct charmap_t *charmap_read (const char *filename, int verbose,
int error_not_found, int be_quiet,
int use_default);
/* Return the value stored under the given key in the hashing table. */
extern struct charseq *charmap_find_value (const struct charmap_t *charmap,
const char *name, size_t len);
/* Return symbol for given multibyte sequence. */
extern struct charseq *charmap_find_symbol (const struct charmap_t *charmap,
const char *name, size_t len);
#endif /* charmap.h */
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