Add the BSD-licensed Citrus iconv to the base system with default off
setting. It can be built by setting the WITH_ICONV knob. While this
knob is unset, the library part, the binaries, the header file and
the metadata files will not be built or installed so it makes no impact
on the system if left turned off.
This work is based on the iconv implementation in NetBSD but a great
number of improvements and feature additions have been included:
- Some utilities have been added. There is a conversion table generator,
which can compare conversion tables to reference data generated by
GNU libiconv. This helps ensuring conversion compatibility.
- UTF-16 surrogate support and some endianness issues have been fixed.
- The rather chaotic Makefiles to build metadata have been refactored
and cleaned up, now it is easy to read and it is also easier to add
support for new encodings.
- A bunch of new encodings and encoding aliases have been added.
- Support for 1->2, 1->3 and 1->4 mappings, which is needed for
transliterating with flying accents as GNU does, like "u.
- Lots of warnings have been fixed, the major part of the code is
now WARNS=6 clean.
- New section 1 and section 5 manual pages have been added.
- Some GNU-specific calls have been implemented:
iconvlist(), iconvctl(), iconv_canonicalize(), iconv_open_into()
- Support for GNU's //IGNORE suffix has been added.
- The "-" argument for stdin is now recognized in iconv(1) as per POSIX.
- The Big5 conversion module has been fixed.
- The iconv.h header files is supposed to be compatible with the
GNU version, i.e. sources should build with base iconv.h and
GNU libiconv. It also includes a macro magic to deal with the
char ** and const char ** incompatibility.
- GNU compatibility: "" or "char" means the current local
encoding in use
- Various cleanups and style(9) fixes.
Approved by: delphij (mentor)
Obtained from: The NetBSD Project
Sponsored by: Google Summer of Code 2009
2011-02-25 00:04:39 +00:00
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/* $FreeBSD$ */
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/* $NetBSD: citrus_mapper_serial.c,v 1.2 2003/07/12 15:39:20 tshiozak Exp $ */
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/*-
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2017-11-26 02:00:33 +00:00
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* SPDX-License-Identifier: BSD-2-Clause
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*
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Add the BSD-licensed Citrus iconv to the base system with default off
setting. It can be built by setting the WITH_ICONV knob. While this
knob is unset, the library part, the binaries, the header file and
the metadata files will not be built or installed so it makes no impact
on the system if left turned off.
This work is based on the iconv implementation in NetBSD but a great
number of improvements and feature additions have been included:
- Some utilities have been added. There is a conversion table generator,
which can compare conversion tables to reference data generated by
GNU libiconv. This helps ensuring conversion compatibility.
- UTF-16 surrogate support and some endianness issues have been fixed.
- The rather chaotic Makefiles to build metadata have been refactored
and cleaned up, now it is easy to read and it is also easier to add
support for new encodings.
- A bunch of new encodings and encoding aliases have been added.
- Support for 1->2, 1->3 and 1->4 mappings, which is needed for
transliterating with flying accents as GNU does, like "u.
- Lots of warnings have been fixed, the major part of the code is
now WARNS=6 clean.
- New section 1 and section 5 manual pages have been added.
- Some GNU-specific calls have been implemented:
iconvlist(), iconvctl(), iconv_canonicalize(), iconv_open_into()
- Support for GNU's //IGNORE suffix has been added.
- The "-" argument for stdin is now recognized in iconv(1) as per POSIX.
- The Big5 conversion module has been fixed.
- The iconv.h header files is supposed to be compatible with the
GNU version, i.e. sources should build with base iconv.h and
GNU libiconv. It also includes a macro magic to deal with the
char ** and const char ** incompatibility.
- GNU compatibility: "" or "char" means the current local
encoding in use
- Various cleanups and style(9) fixes.
Approved by: delphij (mentor)
Obtained from: The NetBSD Project
Sponsored by: Google Summer of Code 2009
2011-02-25 00:04:39 +00:00
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* Copyright (c)2003 Citrus Project,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#include <sys/queue.h>
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#include <assert.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "citrus_namespace.h"
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#include "citrus_types.h"
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#include "citrus_bcs.h"
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#include "citrus_module.h"
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#include "citrus_region.h"
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#include "citrus_memstream.h"
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#include "citrus_mmap.h"
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#include "citrus_hash.h"
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#include "citrus_mapper.h"
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#include "citrus_mapper_serial.h"
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/* ---------------------------------------------------------------------- */
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_CITRUS_MAPPER_DECLS(mapper_serial);
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_CITRUS_MAPPER_DEF_OPS(mapper_serial);
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#define _citrus_mapper_parallel_mapper_init \
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_citrus_mapper_serial_mapper_init
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#define _citrus_mapper_parallel_mapper_uninit \
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_citrus_mapper_serial_mapper_uninit
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#define _citrus_mapper_parallel_mapper_init_state \
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_citrus_mapper_serial_mapper_init_state
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static int _citrus_mapper_parallel_mapper_convert(
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struct _citrus_mapper * __restrict, _index_t * __restrict,
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_index_t, void * __restrict);
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_CITRUS_MAPPER_DEF_OPS(mapper_parallel);
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#undef _citrus_mapper_parallel_mapper_init
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#undef _citrus_mapper_parallel_mapper_uninit
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#undef _citrus_mapper_parallel_mapper_init_state
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/* ---------------------------------------------------------------------- */
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struct maplink {
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STAILQ_ENTRY(maplink) ml_entry;
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struct _mapper *ml_mapper;
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};
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STAILQ_HEAD(maplist, maplink);
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struct _citrus_mapper_serial {
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struct maplist sr_mappers;
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};
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int
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_citrus_mapper_serial_mapper_getops(struct _citrus_mapper_ops *ops)
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{
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memcpy(ops, &_citrus_mapper_serial_mapper_ops,
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sizeof(_citrus_mapper_serial_mapper_ops));
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return (0);
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}
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int
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_citrus_mapper_parallel_mapper_getops(struct _citrus_mapper_ops *ops)
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{
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memcpy(ops, &_citrus_mapper_parallel_mapper_ops,
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sizeof(_citrus_mapper_parallel_mapper_ops));
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return (0);
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}
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static void
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uninit(struct _citrus_mapper_serial *sr)
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{
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struct maplink *ml;
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while ((ml = STAILQ_FIRST(&sr->sr_mappers)) != NULL) {
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STAILQ_REMOVE_HEAD(&sr->sr_mappers, ml_entry);
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_mapper_close(ml->ml_mapper);
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free(ml);
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}
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}
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static int
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parse_var(struct _citrus_mapper_area *__restrict ma,
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struct _citrus_mapper_serial *sr, struct _memstream *ms)
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{
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struct _region r;
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struct maplink *ml;
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char mapname[PATH_MAX];
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int ret;
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STAILQ_INIT(&sr->sr_mappers);
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while (1) {
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/* remove beginning white spaces */
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_memstream_skip_ws(ms);
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if (_memstream_iseof(ms))
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break;
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/* cut down a mapper name */
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_memstream_chr(ms, &r, ',');
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snprintf(mapname, sizeof(mapname), "%.*s",
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(int)_region_size(&r), (char *)_region_head(&r));
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/* remove trailing white spaces */
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mapname[_bcs_skip_nonws(mapname)-mapname] = '\0';
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/* create a new mapper record */
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ml = malloc(sizeof(*ml));
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if (ml == NULL)
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return (errno);
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ret = _mapper_open(ma, &ml->ml_mapper, mapname);
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if (ret) {
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free(ml);
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return (ret);
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}
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/* support only 1:1 and stateless converter */
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if (_mapper_get_src_max(ml->ml_mapper) != 1 ||
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_mapper_get_dst_max(ml->ml_mapper) != 1 ||
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_mapper_get_state_size(ml->ml_mapper) != 0) {
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free(ml);
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return (EINVAL);
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}
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STAILQ_INSERT_TAIL(&sr->sr_mappers, ml, ml_entry);
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}
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return (0);
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}
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static int
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/*ARGSUSED*/
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_citrus_mapper_serial_mapper_init(struct _citrus_mapper_area *__restrict ma __unused,
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struct _citrus_mapper * __restrict cm, const char * __restrict dir __unused,
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const void * __restrict var, size_t lenvar,
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struct _citrus_mapper_traits * __restrict mt, size_t lenmt)
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{
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struct _citrus_mapper_serial *sr;
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struct _memstream ms;
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struct _region r;
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if (lenmt < sizeof(*mt))
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return (EINVAL);
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sr = malloc(sizeof(*sr));
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if (sr == NULL)
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return (errno);
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_region_init(&r, __DECONST(void *, var), lenvar);
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_memstream_bind(&ms, &r);
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if (parse_var(ma, sr, &ms)) {
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uninit(sr);
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free(sr);
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return (EINVAL);
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}
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cm->cm_closure = sr;
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mt->mt_src_max = mt->mt_dst_max = 1; /* 1:1 converter */
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mt->mt_state_size = 0; /* stateless */
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return (0);
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}
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static void
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/*ARGSUSED*/
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_citrus_mapper_serial_mapper_uninit(struct _citrus_mapper *cm)
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{
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if (cm && cm->cm_closure) {
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uninit(cm->cm_closure);
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free(cm->cm_closure);
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}
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}
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static int
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/*ARGSUSED*/
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_citrus_mapper_serial_mapper_convert(struct _citrus_mapper * __restrict cm,
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_index_t * __restrict dst, _index_t src, void * __restrict ps __unused)
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{
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struct _citrus_mapper_serial *sr;
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struct maplink *ml;
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int ret;
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sr = cm->cm_closure;
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STAILQ_FOREACH(ml, &sr->sr_mappers, ml_entry) {
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ret = _mapper_convert(ml->ml_mapper, &src, src, NULL);
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if (ret != _MAPPER_CONVERT_SUCCESS)
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return (ret);
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}
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*dst = src;
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return (_MAPPER_CONVERT_SUCCESS);
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}
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static int
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/*ARGSUSED*/
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_citrus_mapper_parallel_mapper_convert(struct _citrus_mapper * __restrict cm,
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_index_t * __restrict dst, _index_t src, void * __restrict ps __unused)
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{
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struct _citrus_mapper_serial *sr;
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struct maplink *ml;
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_index_t tmp;
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int ret;
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sr = cm->cm_closure;
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STAILQ_FOREACH(ml, &sr->sr_mappers, ml_entry) {
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ret = _mapper_convert(ml->ml_mapper, &tmp, src, NULL);
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if (ret == _MAPPER_CONVERT_SUCCESS) {
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*dst = tmp;
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return (_MAPPER_CONVERT_SUCCESS);
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} else if (ret == _MAPPER_CONVERT_ILSEQ)
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return (_MAPPER_CONVERT_ILSEQ);
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}
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return (_MAPPER_CONVERT_NONIDENTICAL);
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}
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static void
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/*ARGSUSED*/
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_citrus_mapper_serial_mapper_init_state(void)
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{
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}
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