160 lines
4.4 KiB
C
160 lines
4.4 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define ALLOW_FORBID_FUNC
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#define _DEFAULT_SOURCE
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#include "os.h"
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#ifndef DISALLOW_NCHAR_WITHOUT_ICONV
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#include "iconv.h"
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#endif
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extern int wcwidth(wchar_t c);
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extern int wcswidth(const wchar_t *s, size_t n);
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int64_t taosStr2int64(const char *str) {
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char *endptr = NULL;
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return strtoll(str, &endptr, 10);
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}
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int32_t tasoUcs4Compare(TdUcs4 *f1_ucs4, TdUcs4 *f2_ucs4, int32_t bytes) {
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for (int32_t i = 0; i < bytes; i += sizeof(TdUcs4)) {
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int32_t f1 = *(int32_t *)((char *)f1_ucs4 + i);
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int32_t f2 = *(int32_t *)((char *)f2_ucs4 + i);
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if ((f1 == 0 && f2 != 0) || (f1 != 0 && f2 == 0)) {
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return f1 - f2;
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} else if (f1 == 0 && f2 == 0) {
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return 0;
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}
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if (f1 != f2) {
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return f1 - f2;
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}
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}
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return 0;
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#if 0
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int32_t ucs4_max_len = bytes + 4;
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char *f1_mbs = taosMemoryCalloc(bytes, 1);
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char *f2_mbs = taosMemoryCalloc(bytes, 1);
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if (taosUcs4ToMbs(f1_ucs4, ucs4_max_len, f1_mbs) < 0) {
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return -1;
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}
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if (taosUcs4ToMbs(f2_ucs4, ucs4_max_len, f2_mbs) < 0) {
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return -1;
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}
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int32_t ret = strcmp(f1_mbs, f2_mbs);
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taosMemoryFree(f1_mbs);
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taosMemoryFree(f2_mbs);
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return ret;
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#endif
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}
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TdUcs4* tasoUcs4Copy(TdUcs4 *target_ucs4, TdUcs4 *source_ucs4, int32_t len_ucs4) {
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assert(taosMemorySize(target_ucs4)>=len_ucs4*sizeof(TdUcs4));
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return memcpy(target_ucs4, source_ucs4, len_ucs4*sizeof(TdUcs4));
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}
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int32_t taosUcs4ToMbs(TdUcs4 *ucs4, int32_t ucs4_max_len, char *mbs) {
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#ifdef DISALLOW_NCHAR_WITHOUT_ICONV
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printf("Nchar cannot be read and written without iconv, please install iconv library and recompile TDengine.\n");
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return -1;
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#else
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iconv_t cd = iconv_open(tsCharset, DEFAULT_UNICODE_ENCODEC);
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size_t ucs4_input_len = ucs4_max_len;
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size_t outLen = ucs4_max_len;
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if (iconv(cd, (char **)&ucs4, &ucs4_input_len, &mbs, &outLen) == -1) {
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iconv_close(cd);
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return -1;
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}
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iconv_close(cd);
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return (int32_t)(ucs4_max_len - outLen);
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#endif
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}
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bool taosMbsToUcs4(const char *mbs, size_t mbsLength, TdUcs4 *ucs4, int32_t ucs4_max_len, int32_t *len) {
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#ifdef DISALLOW_NCHAR_WITHOUT_ICONV
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printf("Nchar cannot be read and written without iconv, please install iconv library and recompile TDengine.\n");
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return -1;
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#else
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memset(ucs4, 0, ucs4_max_len);
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iconv_t cd = iconv_open(DEFAULT_UNICODE_ENCODEC, tsCharset);
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size_t ucs4_input_len = mbsLength;
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size_t outLeft = ucs4_max_len;
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if (iconv(cd, (char**)&mbs, &ucs4_input_len, (char**)&ucs4, &outLeft) == -1) {
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iconv_close(cd);
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return false;
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}
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iconv_close(cd);
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if (len != NULL) {
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*len = (int32_t)(ucs4_max_len - outLeft);
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if (*len < 0) {
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return false;
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}
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}
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return true;
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#endif
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}
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bool taosValidateEncodec(const char *encodec) {
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#ifdef DISALLOW_NCHAR_WITHOUT_ICONV
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printf("Nchar cannot be read and written without iconv, please install iconv library and recompile TDengine.\n");
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return true;
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#else
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iconv_t cd = iconv_open(encodec, DEFAULT_UNICODE_ENCODEC);
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if (cd == (iconv_t)(-1)) {
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return false;
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}
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iconv_close(cd);
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return true;
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#endif
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}
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int32_t taosUcs4len(TdUcs4 *ucs4) {
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TdUcs4 *wstr = (TdUcs4 *)ucs4;
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if (NULL == wstr) {
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return 0;
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}
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int32_t n = 0;
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while (1) {
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if (0 == *wstr++) {
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break;
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}
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n++;
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}
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return n;
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}
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int32_t taosWcharWidth(TdWchar wchar) { return wcwidth(wchar); }
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int32_t taosWcharsWidth(TdWchar *pWchar, int32_t size) { return wcswidth(pWchar, size); }
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int32_t taosMbToWchar(TdWchar *pWchar, const char *pStr, int32_t size) { return mbtowc(pWchar, pStr, size); }
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int32_t taosMbsToWchars(TdWchar *pWchars, const char *pStrs, int32_t size) { return mbstowcs(pWchars, pStrs, size); }
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int32_t taosWcharToMb(char *pStr, TdWchar wchar) { return wctomb(pStr, wchar); }
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int32_t taosWcharsToMbs(char *pStrs, TdWchar *pWchars, int32_t size) { return wcstombs(pStrs, pWchars, size); }
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