mirror of
https://github.com/s1lentq/ReGameDLL_CS.git
synced 2024-12-27 23:25:41 +03:00
591 lines
16 KiB
C++
591 lines
16 KiB
C++
/*
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* In addition, as a special exception, the author gives permission to
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* link the code of this program with the Half-Life Game Engine ("HL
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* Engine") and Modified Game Libraries ("MODs") developed by Valve,
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* L.L.C ("Valve"). You must obey the GNU General Public License in all
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* respects for all of the code used other than the HL Engine and MODs
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* from Valve. If you modify this file, you may extend this exception
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* to your version of the file, but you are not obligated to do so. If
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* you do not wish to do so, delete this exception statement from your
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* version.
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*
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*/
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#include "precompiled.h"
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// Purpose: determine if a uchar32 represents a valid Unicode code point
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/* <f2fc1> ../engine/unicode_strtools.cpp:23 */
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bool Q_IsValidUChar32(uchar32 uVal)
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{
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// Values > 0x10FFFF are explicitly invalid; ditto for UTF-16 surrogate halves,
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// values ending in FFFE or FFFF, or values in the 0x00FDD0-0x00FDEF reserved range
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return (uVal < 0x110000u) && ((uVal - 0x00D800u) > 0x7FFu) && ((uVal & 0xFFFFu) < 0xFFFEu) && ((uVal - 0x00FDD0u) > 0x1Fu);
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}
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/* <f38f8> ../engine/unicode_strtools.cpp:50 */
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int Q_UTF32ToUChar32(const uchar32 *pUTF32, uchar32 &uVal, bool &bErr)
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{
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if (Q_IsValidUChar32(pUTF32[0]))
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{
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uVal = pUTF32[0];
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bErr = false;
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return 1;
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}
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else if (pUTF32[0] - 55296 >= 0x400 || (pUTF32[1] - 56320) >= 0x400)
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{
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uVal = 63;
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bErr = true;
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return 1;
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}
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else
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{
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uVal = pUTF32[1] + ((uchar32)(pUTF32[0] - 55287) << 10);
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if (Q_IsValidUChar32(uVal))
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{
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bErr = false;
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}
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else
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{
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uVal = 63;
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bErr = true;
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}
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return 2;
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}
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}
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/* <f2fab> ../engine/unicode_strtools.cpp:57 */
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int Q_UChar32ToUTF32Len(uchar32 uVal)
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{
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return (uVal > 0xFFFF) ? 2 : 1;
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}
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/* <f330f> ../engine/unicode_strtools.cpp:62 */
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int Q_UChar32ToUTF32(uchar32 uVal, uchar32 *pUTF32)
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{
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if (uVal <= 0xFFFF)
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{
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pUTF32[0] = uVal;
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return 1;
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}
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else
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{
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pUTF32[1] = uVal & 0x3FF | 0xDC00;
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pUTF32[0] = ((uVal - 0x10000) >> 10) | 0xD800;
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return 2;
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}
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}
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/* <f4344> ../engine/unicode_strtools.cpp:70 */
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template<
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typename T_IN,
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typename T_OUT,
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bool UNK,
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qboolean(*IN_TO_UCHAR32)(const T_IN *pUTF8, uchar32 &uValueOut, bool &bErrorOut),
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int(UCHAR32_TO_OUT_LEN)(uchar32 uVal),
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int(UCHAR32_TO_OUT)(uchar32 uVal, T_OUT *pUTF8Out)
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>
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int Q_UnicodeConvertT(const T_IN *pIn, T_OUT *pOut, int nOutBytes, enum EStringConvertErrorPolicy ePolicy)
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{
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int nOut = 0;
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if (pOut)
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{
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int nMaxOut = nOutBytes / sizeof(T_OUT) - 1;
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if (nMaxOut <= 0)
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return 0;
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while (*pIn)
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{
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bool bErr;
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uchar32 uVal;
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pIn += IN_TO_UCHAR32(pIn, uVal, bErr);
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int nOutElems = UCHAR32_TO_OUT_LEN(uVal);
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if (nOutElems + nOut > nMaxOut)
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break;
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nOut += UCHAR32_TO_OUT(uVal, &pOut[nOut]);
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if (bErr)
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{
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if (ePolicy & STRINGCONVERT_SKIP)
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{
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nOut -= nOutElems;
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}
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else if (ePolicy & STRINGCONVERT_FAIL)
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{
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pOut[0] = 0;
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return 0;
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}
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}
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};
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pOut[nOut] = 0;
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}
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else
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{
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while (*pIn)
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{
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bool bErr;
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uchar32 uVal;
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pIn += IN_TO_UCHAR32(pIn, uVal, bErr);
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int nOutElems = UCHAR32_TO_OUT_LEN(uVal);
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if (bErr)
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{
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if (ePolicy & STRINGCONVERT_SKIP)
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{
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nOut -= nOutElems;
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}
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else if (ePolicy & STRINGCONVERT_FAIL)
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{
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#ifndef REGAMEDLL_FIXES
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pOut[0] = 0; //FIXME: pOut is always null there
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//TODO: V522 Dereferencing of the null pointer 'pOut' might take place.
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#endif // REGAMEDLL_FIXES
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return 0;
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}
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}
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}
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}
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return (nOut + 1) * sizeof(T_OUT);
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}
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/* <f2fe5> ../engine/unicode_strtools.cpp:137 */
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int Q_UChar32ToUTF8Len(uchar32 uVal)
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{
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if (uVal <= 0x7F)
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return 1;
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if (uVal > 0x7FF)
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return (uVal > 0xFFFF) + 3;
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else
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return 2;
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}
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/* <f3030> ../engine/unicode_strtools.cpp:152 */
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int Q_UChar32ToUTF16Len(uchar32 uVal)
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{
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return (uVal > 0xFFFF) ? 2 : 1;
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}
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/* <f3002> ../engine/unicode_strtools.cpp:163 */
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int Q_UChar32ToUTF16(uchar32 uVal, uchar16 *pUTF16Out)
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{
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if (uVal <= 0xFFFF)
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{
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pUTF16Out[0] = uVal;
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return 1;
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}
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else
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{
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pUTF16Out[1] = uVal & 0x3FF | 0xDC00;
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pUTF16Out[0] = ((uVal - 0x10000) >> 10) | 0xD800;
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return 2;
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}
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}
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/* <f3192> ../engine/unicode_strtools.cpp:180 */
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int Q_UChar32ToUTF8(uchar32 uVal, char *pUTF8Out)
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{
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if (uVal <= 0x7F)
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{
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*pUTF8Out = uVal;
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return 1;
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}
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else if (uVal <= 0x7FF)
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{
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*pUTF8Out = (uVal >> 6) | 0xC0;
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pUTF8Out[1] = uVal & 0x3F | 0x80;
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return 2;
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}
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else if (uVal <= 0xFFFF)
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{
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*pUTF8Out = (uVal >> 12) | 0xE0;
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pUTF8Out[2] = uVal & 0x3F | 0x80;
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pUTF8Out[1] = (uVal >> 6) & 0x3F | 0x80;
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return 3;
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}
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else
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{
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*pUTF8Out = (uVal >> 18) & 7 | 0xF0;
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pUTF8Out[1] = (uVal >> 12) & 0x3F | 0x80;
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pUTF8Out[3] = uVal & 0x3F | 0x80;
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pUTF8Out[2] = (uVal >> 6) & 0x3F | 0x80;
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return 4;
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}
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}
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/* <f32b4> ../engine/unicode_strtools.cpp:209 */
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int Q_UTF16ToUChar32(const uchar16 *pUTF16, uchar32 &uValueOut, bool &bErrorOut)
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{
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if (Q_IsValidUChar32(pUTF16[0]))
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{
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uValueOut = pUTF16[0];
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bErrorOut = false;
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return 1;
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}
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else if (pUTF16[0] - 55296 >= 0x400 || (pUTF16[1] - 56320) >= 0x400)
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{
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uValueOut = 63;
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bErrorOut = true;
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return 1;
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}
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else
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{
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uValueOut = pUTF16[1] + ((uchar32)(pUTF16[0] - 55287) << 10);
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if (Q_IsValidUChar32(uValueOut))
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{
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bErrorOut = false;
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}
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else
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{
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uValueOut = 63;
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bErrorOut = true;
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}
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return 2;
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}
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}
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/* <f4468> ../engine/unicode_strtools.cpp:246 */
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int Q_UTF8ToUTF16(const char *pUTF8, uchar16 *pUTF16, int cubDestSizeInBytes, EStringConvertErrorPolicy ePolicy)
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{
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return Q_UnicodeConvertT<char, uchar16, true, Q_UTF8ToUChar32, Q_UChar32ToUTF16Len, Q_UChar32ToUTF16>(pUTF8, pUTF16, cubDestSizeInBytes, ePolicy);
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}
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/* <f3822> ../engine/unicode_strtools.cpp:254 */
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int Q_UTF8ToUTF32(const char *pUTF8, uchar32 *pUTF32, int cubDestSizeInBytes, EStringConvertErrorPolicy ePolicy)
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{
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return Q_UnicodeConvertT<char, uchar32, true, Q_UTF8ToUChar32, Q_UChar32ToUTF32Len, Q_UChar32ToUTF32>(pUTF8, pUTF32, cubDestSizeInBytes, ePolicy);
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}
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/* <f3d09> ../engine/unicode_strtools.cpp:262 */
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int Q_UTF16ToUTF8(const uchar16 *pUTF16, char *pUTF8, int cubDestSizeInBytes, EStringConvertErrorPolicy ePolicy)
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{
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return Q_UnicodeConvertT<uchar16, char, true, Q_UTF16ToUChar32, Q_UChar32ToUTF8Len, Q_UChar32ToUTF8>(pUTF16, pUTF8, cubDestSizeInBytes, ePolicy);
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}
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/* <f3f0d> ../engine/unicode_strtools.cpp:270 */
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NOXREF int Q_UTF16ToUTF32(const uchar16 *pUTF16, uchar32 *pUTF32, int cubDestSizeInBytes, EStringConvertErrorPolicy ePolicy)
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{
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return Q_UnicodeConvertT<uchar16, uchar32, true, Q_UTF16ToUChar32, Q_UChar32ToUTF32Len, Q_UChar32ToUTF32>(pUTF16, pUTF32, cubDestSizeInBytes, ePolicy);
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}
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/* <f38aa> ../engine/unicode_strtools.cpp:278 */
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int Q_UTF32ToUTF8(const uchar32 *pUTF32, char *pUTF8, int cubDestSizeInBytes, EStringConvertErrorPolicy ePolicy)
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{
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return Q_UnicodeConvertT<uchar32, char, true, Q_UTF32ToUChar32, Q_UChar32ToUTF8Len, Q_UChar32ToUTF8>(pUTF32, pUTF8, cubDestSizeInBytes, ePolicy);
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}
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/* <f404a> ../engine/unicode_strtools.cpp:286 */
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NOXREF int Q_UTF32ToUTF16(const uchar32 *pUTF32, uchar16 *pUTF16, int cubDestSizeInBytes, EStringConvertErrorPolicy ePolicy)
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{
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return Q_UnicodeConvertT<uchar32, uchar16, true, Q_UTF32ToUChar32, Q_UChar32ToUTF16Len, Q_UChar32ToUTF16>(pUTF32, pUTF16, cubDestSizeInBytes, ePolicy);
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}
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// Decode one character from a UTF-8 encoded string. Treats 6-byte CESU-8 sequences
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// as a single character, as if they were a correctly-encoded 4-byte UTF-8 sequence.
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/* <f4251> ../engine/unicode_strtools.cpp:346 */
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int Q_UTF8ToUChar32(const char *pUTF8_, uchar32 &uValueOut, bool &bErrorOut)
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{
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const uint8_t *pUTF8 = (const uint8_t *)pUTF8_;
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int nBytes = 1;
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uint32_t uValue = pUTF8[0];
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uint32_t uMinValue = 0;
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// 0....... single byte
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if (uValue < 0x80)
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goto decodeFinishedNoCheck;
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// Expecting at least a two-byte sequence with 0xC0 <= first <= 0xF7 (110...... and 11110...)
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if ((uValue - 0xC0u) > 0x37u || (pUTF8[1] & 0xC0) != 0x80)
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goto decodeError;
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uValue = (uValue << 6) - (0xC0 << 6) + pUTF8[1] - 0x80;
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nBytes = 2;
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uMinValue = 0x80;
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// 110..... two-byte lead byte
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if (!(uValue & (0x20 << 6)))
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goto decodeFinished;
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// Expecting at least a three-byte sequence
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if ((pUTF8[2] & 0xC0) != 0x80)
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goto decodeError;
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uValue = (uValue << 6) - (0x20 << 12) + pUTF8[2] - 0x80;
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nBytes = 3;
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uMinValue = 0x800;
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// 1110.... three-byte lead byte
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if (!(uValue & (0x10 << 12)))
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goto decodeFinishedMaybeCESU8;
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// Expecting a four-byte sequence, longest permissible in UTF-8
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if ((pUTF8[3] & 0xC0) != 0x80)
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goto decodeError;
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uValue = (uValue << 6) - (0x10 << 18) + pUTF8[3] - 0x80;
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nBytes = 4;
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uMinValue = 0x10000;
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// 11110... four-byte lead byte. fall through to finished.
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decodeFinished:
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if (uValue >= uMinValue && Q_IsValidUChar32(uValue))
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{
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decodeFinishedNoCheck:
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uValueOut = uValue;
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bErrorOut = false;
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return nBytes;
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}
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decodeError:
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uValueOut = '?';
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bErrorOut = true;
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return nBytes;
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decodeFinishedMaybeCESU8:
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// Do we have a full UTF-16 surrogate pair that's been UTF-8 encoded afterwards?
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// That is, do we have 0xD800-0xDBFF followed by 0xDC00-0xDFFF? If so, decode it all.
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if ((uValue - 0xD800u) < 0x400u && pUTF8[3] == 0xED && (uint8_t)(pUTF8[4] - 0xB0) < 0x10 && (pUTF8[5] & 0xC0) == 0x80)
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{
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uValue = 0x10000 + ((uValue - 0xD800u) << 10) + ((uint8_t)(pUTF8[4] - 0xB0) << 6) + pUTF8[5] - 0x80;
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nBytes = 6;
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uMinValue = 0x10000;
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}
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goto decodeFinished;
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}
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// Purpose: Returns false if UTF-8 string contains invalid sequences.
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/* <f45fd> ../engine/unicode_strtools.cpp:423 */
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qboolean Q_UnicodeValidate(const char *pUTF8)
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{
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bool bError = false;
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while (*pUTF8)
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{
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uchar32 uVal;
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// Our UTF-8 decoder silently fixes up 6-byte CESU-8 (improperly re-encoded UTF-16) sequences.
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// However, these are technically not valid UTF-8. So if we eat 6 bytes at once, it's an error.
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int nCharSize = Q_UTF8ToUChar32(pUTF8, uVal, bError);
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if (bError || nCharSize == 6)
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return false;
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pUTF8 += nCharSize;
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}
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return true;
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}
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/* <f4665> ../engine/unicode_strtools.cpp:442 */
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NOXREF int Q_UnicodeLength(const char *pUTF8)
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{
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int nChars = 0;
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while (*pUTF8)
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{
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bool bError;
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uchar32 uVal;
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pUTF8 += Q_UTF8ToUChar32(pUTF8, uVal, bError);
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++nChars;
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}
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return nChars;
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}
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/* <f46d1> ../engine/unicode_strtools.cpp:459 */
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NOXREF char *Q_UnicodeAdvance(char *pUTF8, int nChars)
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{
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uchar32 uVal = 0;
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bool bError = false;
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while (nChars > 0 && *pUTF8)
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{
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pUTF8 += Q_UTF8ToUChar32(pUTF8, uVal, bError);
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--nChars;
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}
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return pUTF8;
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}
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// Purpose: returns true if a wide character is a "mean" space; that is,
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// if it is technically a space or punctuation, but causes disruptive
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// behavior when used in names, web pages, chat windows, etc.
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//
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// characters in this set are removed from the beginning and/or end of strings
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// by Q_AggressiveStripPrecedingAndTrailingWhitespaceW()
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/* <f4737> ../engine/unicode_strtools.cpp:479 */
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qboolean Q_IsMeanSpaceW(uchar16 wch)
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{
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bool bIsMean = false;
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switch (wch)
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{
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case 0x0082: // BREAK PERMITTED HERE
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case 0x0083: // NO BREAK PERMITTED HERE
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case 0x00A0: // NO-BREAK SPACE
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case 0x034F: // COMBINING GRAPHEME JOINER
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case 0x2000: // EN QUAD
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case 0x2001: // EM QUAD
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case 0x2002: // EN SPACE
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case 0x2003: // EM SPACE
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case 0x2004: // THICK SPACE
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case 0x2005: // MID SPACE
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case 0x2006: // SIX SPACE
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case 0x2007: // figure space
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case 0x2008: // PUNCTUATION SPACE
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case 0x2009: // THIN SPACE
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case 0x200A: // HAIR SPACE
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case 0x200B: // ZERO-WIDTH SPACE
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case 0x200C: // ZERO-WIDTH NON-JOINER
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case 0x200D: // ZERO WIDTH JOINER
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case 0x2028: // LINE SEPARATOR
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case 0x2029: // PARAGRAPH SEPARATOR
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case 0x202F: // NARROW NO-BREAK SPACE
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case 0x2060: // word joiner
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case 0xFEFF: // ZERO-WIDTH NO BREAK SPACE
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case 0xFFFC: // OBJECT REPLACEMENT CHARACTER
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bIsMean = true;
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break;
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}
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return bIsMean;
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}
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/* <f37f5> ../engine/unicode_strtools.cpp:566 */
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qboolean Q_IsDeprecatedW(uchar16 wch)
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|
{
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qboolean bIsDeprecated = FALSE;
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|
|
switch (wch)
|
|
{
|
|
case 0x202A:
|
|
case 0x202B:
|
|
case 0x202C:
|
|
case 0x202D:
|
|
case 0x202E:
|
|
case 0x206A:
|
|
case 0x206B:
|
|
case 0x206C:
|
|
case 0x206D:
|
|
case 0x206E:
|
|
case 0x206F:
|
|
bIsDeprecated = TRUE;
|
|
break;
|
|
}
|
|
|
|
return bIsDeprecated;
|
|
}
|
|
|
|
// Purpose: strips trailing whitespace; returns pointer inside string just past
|
|
// any leading whitespace.
|
|
//
|
|
// bAggresive = true causes this function to also check for "mean" spaces,
|
|
// which we don't want in persona names or chat strings as they're disruptive
|
|
// to the user experience.
|
|
|
|
/* <f47bc> ../engine/unicode_strtools.cpp:600 */
|
|
static uchar16 *StripWhitespaceWorker(uchar16 *pwch, int cchLength, bool *pbStrippedWhitespace)
|
|
{
|
|
// walk backwards from the end of the string, killing any whitespace
|
|
*pbStrippedWhitespace = false;
|
|
|
|
uchar16 *pwchEnd = pwch + cchLength;
|
|
while (--pwchEnd >= pwch)
|
|
{
|
|
if (!iswspace(*pwchEnd) && !Q_IsMeanSpaceW(*pwchEnd))
|
|
break;
|
|
|
|
*pwchEnd = 0;
|
|
*pbStrippedWhitespace = true;
|
|
}
|
|
|
|
// walk forward in the string
|
|
while (pwch < pwchEnd)
|
|
{
|
|
if (!iswspace(*pwch))
|
|
break;
|
|
|
|
*pbStrippedWhitespace = true;
|
|
pwch++;
|
|
}
|
|
|
|
return pwch;
|
|
}
|
|
|
|
/* <f3860> ../engine/unicode_strtools.cpp:653 */
|
|
uchar16 *StripUnprintableWorker(uchar16 *pwch, bool *pbStrippedAny)
|
|
{
|
|
uchar16 *pwchSource = pwch;
|
|
uchar16 *pwchDest = pwch;
|
|
*pbStrippedAny = 0;
|
|
|
|
while (*pwchSource)
|
|
{
|
|
uchar16 cc = *pwchSource;
|
|
if (*pwchSource >= 0x20u && !Q_IsDeprecatedW(cc) && cc != 0x2026)
|
|
{
|
|
*pwchDest = cc;
|
|
++pwchDest;
|
|
}
|
|
++pwchSource;
|
|
}
|
|
|
|
*pwchDest = 0;
|
|
*pbStrippedAny = pwchSource != pwchDest;
|
|
return pwch;
|
|
}
|
|
|
|
/* <f4800> ../engine/unicode_strtools.cpp:691 */
|
|
qboolean Q_StripUnprintableAndSpace(char *pch)
|
|
{
|
|
bool bStrippedAny;
|
|
bool bStrippedWhitespace;
|
|
|
|
int cch = Q_strlen(pch);
|
|
int cubDest = (cch + 1) * sizeof(uchar16);
|
|
uchar16 *pwch_alloced = (uchar16*)malloc(cubDest);
|
|
bStrippedAny = false;
|
|
bStrippedWhitespace = false;
|
|
|
|
// TODO: here is used Q_UTF8ToUTF32, and not this Q_UTF8ToUTF16
|
|
int cwch = (unsigned int)Q_UTF8ToUTF16(pch, (uchar16 *)pwch_alloced, cubDest, _STRINGCONVERTFLAG_ASSERT) >> 1;
|
|
uchar16 * pwch = StripUnprintableWorker(pwch_alloced, &bStrippedAny);
|
|
pwch = StripWhitespaceWorker(pwch, cwch - 1, &bStrippedWhitespace);
|
|
if (bStrippedWhitespace || bStrippedAny)
|
|
{
|
|
// TODO:: here is used Q_UTF32ToUTF8
|
|
Q_UTF16ToUTF8(pwch, pch, cch, STRINGCONVERT_ASSERT_REPLACE);
|
|
}
|
|
|
|
free(pwch_alloced);
|
|
return bStrippedAny;
|
|
}
|
|
|
|
/* <f4a0d> ../engine/unicode_strtools.cpp:717 */
|
|
NOXREF qboolean V_UTF8ToUChar32(const char *pUTF8_, uchar32 *uValueOut)
|
|
{
|
|
bool bError = false;
|
|
Q_UTF8ToUChar32(pUTF8_, *uValueOut, bError);
|
|
return bError;
|
|
}
|
|
|
|
/* <f4a63> ../engine/unicode_strtools.cpp:724 */
|
|
NOXREF int Q_UnicodeRepair(char *pUTF8)
|
|
{
|
|
return Q_UnicodeConvertT<char, char, true, Q_UTF8ToUChar32, Q_UChar32ToUTF8Len, Q_UChar32ToUTF8>(pUTF8, pUTF8, 65535, STRINGCONVERT_SKIP);
|
|
}
|