mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
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310 lines
8.5 KiB
C
310 lines
8.5 KiB
C
/**********************************************************************
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utf16_le.c - Oniguruma (regular expression library)
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**********************************************************************/
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/*-
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* Copyright (c) 2002-2019 K.Kosako <sndgk393 AT ybb DOT ne DOT jp>
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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 "regint.h" /* for USE_CALLOUT */
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static int
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init(void)
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{
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#ifdef USE_CALLOUT
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int id;
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OnigEncoding enc;
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char* name;
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unsigned int args[4];
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OnigValue opts[4];
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enc = ONIG_ENCODING_UTF16_LE;
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name = "F\000A\000I\000L\000\000\000"; BC0_P(name, fail);
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name = "M\000I\000S\000M\000A\000T\000C\000H\000\000\000"; BC0_P(name, mismatch);
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name = "M\000A\000X\000\000\000";
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args[0] = ONIG_TYPE_TAG | ONIG_TYPE_LONG;
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args[1] = ONIG_TYPE_CHAR;
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opts[0].c = 'X';
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BC_B_O(name, max, 2, args, 1, opts);
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name = "E\000R\000R\000O\000R\000\000\000";
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args[0] = ONIG_TYPE_LONG; opts[0].l = ONIG_ABORT;
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BC_P_O(name, error, 1, args, 1, opts);
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name = "C\000O\000U\000N\000T\000\000\000";
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args[0] = ONIG_TYPE_CHAR; opts[0].c = '>';
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BC_B_O(name, count, 1, args, 1, opts);
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name = "T\000O\000T\000A\000L\000_\000C\000O\000U\000N\000T\000\000\000";
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args[0] = ONIG_TYPE_CHAR; opts[0].c = '>';
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BC_B_O(name, total_count, 1, args, 1, opts);
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name = "C\000M\000P\000\000\000";
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args[0] = ONIG_TYPE_TAG | ONIG_TYPE_LONG;
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args[1] = ONIG_TYPE_STRING;
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args[2] = ONIG_TYPE_TAG | ONIG_TYPE_LONG;
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BC_P(name, cmp, 3, args);
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#endif /* USE_CALLOUT */
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return ONIG_NORMAL;
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}
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static const int EncLen_UTF16[] = {
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 4, 4, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
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};
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static int
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utf16le_code_to_mbclen(OnigCodePoint code)
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{
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if (code > 0xffff) {
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if (code > 0x10ffff)
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return ONIGERR_INVALID_CODE_POINT_VALUE;
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else
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return 4;
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}
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else {
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return 2;
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}
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}
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static int
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utf16le_mbc_enc_len(const UChar* p)
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{
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return EncLen_UTF16[*(p+1)];
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}
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static int
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is_valid_mbc_string(const UChar* p, const UChar* end)
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{
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const UChar* end1 = end - 1;
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while (p < end1) {
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int len = utf16le_mbc_enc_len(p);
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if (len == 4) {
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if (p + 3 < end && ! UTF16_IS_SURROGATE_SECOND(*(p + 3)))
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return FALSE;
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}
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else
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if (UTF16_IS_SURROGATE_SECOND(*(p + 1)))
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return FALSE;
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p += len;
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}
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if (p != end)
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return FALSE;
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else
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return TRUE;
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}
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static int
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utf16le_is_mbc_newline(const UChar* p, const UChar* end)
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{
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if (p + 1 < end) {
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if (*p == 0x0a && *(p+1) == 0x00)
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return 1;
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#ifdef USE_UNICODE_ALL_LINE_TERMINATORS
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if ((
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#ifndef USE_CRNL_AS_LINE_TERMINATOR
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*p == 0x0d ||
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#endif
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*p == 0x85) && *(p+1) == 0x00)
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return 1;
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if (*(p+1) == 0x20 && (*p == 0x29 || *p == 0x28))
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return 1;
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#endif
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}
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return 0;
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}
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static OnigCodePoint
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utf16le_mbc_to_code(const UChar* p, const UChar* end ARG_UNUSED)
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{
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OnigCodePoint code;
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UChar c0 = *p;
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UChar c1 = *(p+1);
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if (UTF16_IS_SURROGATE_FIRST(c1)) {
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code = ((((c1 - 0xd8) << 2) + ((c0 & 0xc0) >> 6) + 1) << 16)
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+ ((((c0 & 0x3f) << 2) + (p[3] - 0xdc)) << 8)
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+ p[2];
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}
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else {
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code = c1 * 256 + p[0];
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}
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return code;
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}
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static int
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utf16le_code_to_mbc(OnigCodePoint code, UChar *buf)
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{
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UChar* p = buf;
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if (code > 0xffff) {
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unsigned int plane, high;
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plane = (code >> 16) - 1;
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high = (code & 0xff00) >> 8;
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*p++ = ((plane & 0x03) << 6) + (high >> 2);
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*p++ = (plane >> 2) + 0xd8;
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*p++ = (UChar )(code & 0xff);
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*p = (high & 0x03) + 0xdc;
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return 4;
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}
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else {
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*p++ = (UChar )(code & 0xff);
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*p++ = (UChar )((code & 0xff00) >> 8);
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return 2;
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}
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}
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static int
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utf16le_mbc_case_fold(OnigCaseFoldType flag,
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const UChar** pp, const UChar* end, UChar* fold)
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{
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const UChar* p = *pp;
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if (ONIGENC_IS_ASCII_CODE(*p) && *(p+1) == 0) {
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#ifdef USE_UNICODE_CASE_FOLD_TURKISH_AZERI
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if ((flag & ONIGENC_CASE_FOLD_TURKISH_AZERI) != 0) {
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if (*p == 0x49) {
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*fold++ = 0x31;
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*fold = 0x01;
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(*pp) += 2;
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return 2;
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}
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}
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#endif
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*fold++ = ONIGENC_ASCII_CODE_TO_LOWER_CASE(*p);
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*fold = 0;
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*pp += 2;
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return 2;
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}
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else
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return onigenc_unicode_mbc_case_fold(ONIG_ENCODING_UTF16_LE, flag, pp, end,
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fold);
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}
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#if 0
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static int
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utf16le_is_mbc_ambiguous(OnigCaseFoldType flag, const UChar** pp,
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const UChar* end)
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{
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const UChar* p = *pp;
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(*pp) += EncLen_UTF16[*(p+1)];
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if (*(p+1) == 0) {
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int c, v;
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if (*p == 0xdf && (flag & INTERNAL_ONIGENC_CASE_FOLD_MULTI_CHAR) != 0) {
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return TRUE;
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}
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c = *p;
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v = ONIGENC_IS_UNICODE_ISO_8859_1_BIT_CTYPE(c,
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(BIT_CTYPE_UPPER | BIT_CTYPE_LOWER));
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if ((v | BIT_CTYPE_LOWER) != 0) {
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/* 0xaa, 0xb5, 0xba are lower case letter, but can't convert. */
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if (c >= 0xaa && c <= 0xba)
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return FALSE;
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else
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return TRUE;
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}
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return (v != 0 ? TRUE : FALSE);
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}
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return FALSE;
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}
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#endif
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static UChar*
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utf16le_left_adjust_char_head(const UChar* start, const UChar* s)
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{
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if (s <= start) return (UChar* )s;
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if ((s - start) % 2 == 1) {
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s--;
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}
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if (UTF16_IS_SURROGATE_SECOND(*(s+1)) && s > start + 1 &&
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UTF16_IS_SURROGATE_FIRST(*(s-1)))
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s -= 2;
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return (UChar* )s;
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}
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static int
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utf16le_get_case_fold_codes_by_str(OnigCaseFoldType flag,
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const OnigUChar* p, const OnigUChar* end, OnigCaseFoldCodeItem items[])
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{
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return onigenc_unicode_get_case_fold_codes_by_str(ONIG_ENCODING_UTF16_LE,
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flag, p, end, items);
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}
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OnigEncodingType OnigEncodingUTF16_LE = {
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utf16le_mbc_enc_len,
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"UTF-16LE", /* name */
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4, /* max enc length */
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2, /* min enc length */
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utf16le_is_mbc_newline,
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utf16le_mbc_to_code,
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utf16le_code_to_mbclen,
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utf16le_code_to_mbc,
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utf16le_mbc_case_fold,
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onigenc_unicode_apply_all_case_fold,
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utf16le_get_case_fold_codes_by_str,
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onigenc_unicode_property_name_to_ctype,
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onigenc_unicode_is_code_ctype,
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onigenc_utf16_32_get_ctype_code_range,
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utf16le_left_adjust_char_head,
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onigenc_always_false_is_allowed_reverse_match,
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init,
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0, /* is_initialized */
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is_valid_mbc_string,
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ENC_FLAG_UNICODE|ENC_FLAG_SKIP_OFFSET_1,
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0, 0
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};
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