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ruby--ruby/enc/iso_8859_14.c
duerst 1edb021b5c * enc/iso_8859_14.c, test/ruby/enc/test_case_comprehensive.rb: 
Implement non-ASCII case conversion for ISO-8859-14, by Yutaro Tada.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-07-06 10:54:24 +00:00

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/**********************************************************************
iso8859_14.c - Oniguruma (regular expression library)
**********************************************************************/
/*-
* Copyright (c) 2002-2007 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "regenc.h"
#include "iso_8859.h"
#define ENC_ISO_8859_14_TO_LOWER_CASE(c) EncISO_8859_14_ToLowerCaseTable[c]
#define ENC_IS_ISO_8859_14_CTYPE(code,ctype) \
((EncISO_8859_14_CtypeTable[code] & CTYPE_TO_BIT(ctype)) != 0)
static const UChar EncISO_8859_14_ToLowerCaseTable[256] = {
'\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
'\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
'\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
'\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
'\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
'\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
'\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
'\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
'\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
'\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
'\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
'\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
'\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
'\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
'\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
'\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
'\240', '\242', '\242', '\243', '\245', '\245', '\253', '\247',
'\270', '\251', '\272', '\253', '\274', '\255', '\256', '\377',
'\261', '\261', '\263', '\263', '\265', '\265', '\266', '\271',
'\270', '\271', '\272', '\277', '\274', '\276', '\276', '\277',
'\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
'\370', '\371', '\372', '\373', '\374', '\375', '\376', '\337',
'\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
'\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377'
};
static const unsigned short EncISO_8859_14_CtypeTable[256] = {
0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
0x4008, 0x420c, 0x4209, 0x4208, 0x4208, 0x4208, 0x4008, 0x4008,
0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008, 0x4008,
0x4284, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0, 0x78b0,
0x78b0, 0x78b0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x41a0,
0x41a0, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x7ca2, 0x74a2,
0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2, 0x74a2,
0x74a2, 0x74a2, 0x74a2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x51a0,
0x41a0, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x78e2, 0x70e2,
0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2, 0x70e2,
0x70e2, 0x70e2, 0x70e2, 0x41a0, 0x41a0, 0x41a0, 0x41a0, 0x4008,
0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008, 0x0008,
0x0284, 0x34a2, 0x30e2, 0x00a0, 0x34a2, 0x30e2, 0x34a2, 0x00a0,
0x34a2, 0x00a0, 0x34a2, 0x30e2, 0x34a2, 0x01a0, 0x00a0, 0x34a2,
0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x00a0, 0x34a2,
0x30e2, 0x30e2, 0x30e2, 0x34a2, 0x30e2, 0x34a2, 0x30e2, 0x30e2,
0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2,
0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x34a2, 0x30e2,
0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2,
0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2, 0x30e2
};
static int
mbc_case_fold(OnigCaseFoldType flag,
const UChar** pp, const UChar* end ARG_UNUSED,
UChar* lower, OnigEncoding enc ARG_UNUSED)
{
const UChar* p = *pp;
if (*p == SHARP_s && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
*lower++ = 's';
*lower = 's';
(*pp)++;
return 2;
}
*lower = ENC_ISO_8859_14_TO_LOWER_CASE(*p);
(*pp)++;
return 1; /* return byte length of converted char to lower */
}
#if 0
static int
is_mbc_ambiguous(OnigCaseFoldType flag,
const UChar** pp, const UChar* end)
{
int v;
const UChar* p = *pp;
if (*p == SHARP_s && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
(*pp)++;
return TRUE;
}
(*pp)++;
v = (EncISO_8859_14_CtypeTable[*p] & (BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
if ((v | BIT_CTYPE_LOWER) != 0) {
return TRUE;
}
return (v != 0 ? TRUE : FALSE);
}
#endif
static int
is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSED)
{
if (code < 256)
return ENC_IS_ISO_8859_14_CTYPE(code, ctype);
else
return FALSE;
}
static const OnigPairCaseFoldCodes CaseFoldMap[] = {
{ 0xa1, 0xa2 },
{ 0xa4, 0xa5 },
{ 0xa6, 0xab },
{ 0xa8, 0xb8 },
{ 0xaa, 0xba },
{ 0xac, 0xbc },
{ 0xaf, 0xff },
{ 0xb0, 0xb1 },
{ 0xb2, 0xb3 },
{ 0xb4, 0xb5 },
{ 0xb7, 0xb9 },
{ 0xbb, 0xbf },
{ 0xbd, 0xbe },
{ 0xc0, 0xe0 },
{ 0xc1, 0xe1 },
{ 0xc2, 0xe2 },
{ 0xc3, 0xe3 },
{ 0xc4, 0xe4 },
{ 0xc5, 0xe5 },
{ 0xc6, 0xe6 },
{ 0xc7, 0xe7 },
{ 0xc8, 0xe8 },
{ 0xc9, 0xe9 },
{ 0xca, 0xea },
{ 0xcb, 0xeb },
{ 0xcc, 0xec },
{ 0xcd, 0xed },
{ 0xce, 0xee },
{ 0xcf, 0xef },
{ 0xd0, 0xf0 },
{ 0xd1, 0xf1 },
{ 0xd2, 0xf2 },
{ 0xd3, 0xf3 },
{ 0xd4, 0xf4 },
{ 0xd5, 0xf5 },
{ 0xd6, 0xf6 },
{ 0xd7, 0xf7 },
{ 0xd8, 0xf8 },
{ 0xd9, 0xf9 },
{ 0xda, 0xfa },
{ 0xdb, 0xfb },
{ 0xdc, 0xfc },
{ 0xdd, 0xfd },
{ 0xde, 0xfe }
};
static int
apply_all_case_fold(OnigCaseFoldType flag,
OnigApplyAllCaseFoldFunc f, void* arg,
OnigEncoding enc ARG_UNUSED)
{
return onigenc_apply_all_case_fold_with_map(
numberof(CaseFoldMap), CaseFoldMap, 1,
flag, f, arg);
}
static int
get_case_fold_codes_by_str(OnigCaseFoldType flag,
const OnigUChar* p, const OnigUChar* end,
OnigCaseFoldCodeItem items[],
OnigEncoding enc ARG_UNUSED)
{
return onigenc_get_case_fold_codes_by_str_with_map(
numberof(CaseFoldMap), CaseFoldMap, 1,
flag, p, end, items);
}
#ifdef ONIG_CASE_MAPPING
static int
case_map (OnigCaseFoldType* flagP, const OnigUChar** pp,
const OnigUChar* end, OnigUChar* to, OnigUChar* to_end,
const struct OnigEncodingTypeST* enc)
{
OnigCodePoint code;
OnigUChar *to_start = to;
OnigCaseFoldType flags = *flagP;
while (*pp<end && to<to_end) {
code = *(*pp)++;
if (code==SHARP_s) {
if (flags&ONIGENC_CASE_UPCASE) {
flags |= ONIGENC_CASE_MODIFIED;
*to++ = 'S';
code = (flags&ONIGENC_CASE_TITLECASE) ? 's' : 'S';
}
else if (flags&ONIGENC_CASE_FOLD) {
flags |= ONIGENC_CASE_MODIFIED;
*to++ = 's';
code = 's';
}
}
//else if (code==0xAA || code==0xBA) ;
else if ((EncISO_8859_14_CtypeTable[code] & BIT_CTYPE_UPPER)
&& (flags & (ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_FOLD))) {
flags |= ONIGENC_CASE_MODIFIED;
if (code == 0xA1 || code == 0xA4 || code == 0xB0 || code == 0xB2 || code == 0xB4 || code == 0xBD)
code += 0x1;
else if(code == 0xA6)
code += 0x5;
else if(code == 0xAF)
code += 0x50;
else if(code == 0xB7)
code += 0x2;
else if(code == 0xBB)
code += 0x4;
else if(code == 0xA8 || code == 0xAA || code == 0xAC)
code += 0x10;
else
code += 0x20;
}
else if ((EncISO_8859_14_CtypeTable[code]&BIT_CTYPE_LOWER)
&& (flags&ONIGENC_CASE_UPCASE)) {
flags |= ONIGENC_CASE_MODIFIED;
if(code == 0xA2 || code == 0xA5 || code == 0xB1 || code == 0xB3 || code == 0xB5 || code == 0xBE)
code -= 0x1;
else if(code == 0xAB)
code -= 0x5;
else if(code == 0xFF)
code -= 0x50;
else if(code == 0xB9)
code -= 0x2;
else if(code == 0xBF)
code -= 0x4;
else if(code == 0xB8 || code == 0xBA || code == 0xBC)
code -= 0x10;
else
code -= 0x20;
}
*to++ = code;
if (flags&ONIGENC_CASE_TITLECASE) /* switch from titlecase to lowercase for capitalize */
flags ^= (ONIGENC_CASE_UPCASE|ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_TITLECASE);
}
*flagP = flags;
return (int)(to-to_start);
}
#endif /* ONIG_CASE_MAPPING */
OnigEncodingDefine(iso_8859_14, ISO_8859_14) = {
onigenc_single_byte_mbc_enc_len,
"ISO-8859-14", /* name */
1, /* max enc length */
1, /* min enc length */
onigenc_is_mbc_newline_0x0a,
onigenc_single_byte_mbc_to_code,
onigenc_single_byte_code_to_mbclen,
onigenc_single_byte_code_to_mbc,
mbc_case_fold,
apply_all_case_fold,
get_case_fold_codes_by_str,
onigenc_minimum_property_name_to_ctype,
is_code_ctype,
onigenc_not_support_get_ctype_code_range,
onigenc_single_byte_left_adjust_char_head,
onigenc_always_true_is_allowed_reverse_match,
0,
ONIGENC_FLAG_NONE,
#ifdef ONIG_CASE_MAPPING
case_map,
#endif /* ONIG_CASE_MAPPING */
};
ENC_ALIAS("ISO8859-14", "ISO-8859-14")
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