| 375 | } |
| 376 | |
| 377 | bool IsConsoleDoubleCellCP() |
| 378 | { |
| 379 | static bool bDBCS = false, bDBCS_Checked = false; |
| 380 | if (!bDBCS_Checked) |
| 381 | { |
| 382 | bDBCS = IsWinDBCS(); |
| 383 | bDBCS_Checked = true; |
| 384 | // gh-945: Perhaps it will be fixed in future Win10 builds? |
| 385 | if (!bDBCS && IsWin10()) |
| 386 | { |
| 387 | OSVERSIONINFOEXW osVersion = MakeOsVersionEx(10, 0); |
| 388 | osVersion.dwBuildNumber = 14959; |
| 389 | DWORDLONG const dwlConditionMask = VerSetConditionMask(VerSetConditionMask(VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL), VER_MINORVERSION, VER_GREATER_EQUAL), VER_BUILDNUMBER, VER_GREATER_EQUAL); |
| 390 | const BOOL ibIsWinOrHigher = _VerifyVersionInfo(&osVersion, VER_MAJORVERSION | VER_MINORVERSION | VER_BUILDNUMBER, dwlConditionMask); |
| 391 | if (ibIsWinOrHigher) |
| 392 | { |
| 393 | bDBCS = true; |
| 394 | } |
| 395 | } |
| 396 | } |
| 397 | |
| 398 | static bool bDBCS_CP = false; |
| 399 | static DWORD nLastCP = 0; |
| 400 | UINT MaxCharSize = 0; |
| 401 | DWORD nCP; |
| 402 | #ifdef _DEBUG |
| 403 | DWORD nCP1; |
| 404 | //DWORD nMode; |
| 405 | #endif |
| 406 | |
| 407 | if (bDBCS) |
| 408 | { |
| 409 | nCP = GetConsoleOutputCP(); |
| 410 | #ifdef _DEBUG |
| 411 | nCP1 = GetConsoleCP(); |
| 412 | // May occur in some case due race |
| 413 | // Under pwsh.exe we have GetConsoleOutputCP=65001 and GetConsoleCP=437 |
| 414 | //_ASSERTE(nCP1==nCP); |
| 415 | //GetConsoleMode(hOut, &nMode); |
| 416 | #endif |
| 417 | |
| 418 | if (!nLastCP || (nLastCP != nCP)) |
| 419 | { |
| 420 | bool bNewVal = true; |
| 421 | if (!AreCpInfoLeads(nCP, &MaxCharSize) || MaxCharSize < 2) |
| 422 | { |
| 423 | // gh-879: Windows 10 (since 14931) has changed behavior for double-cell glyphs |
| 424 | // Now they are doubled (COMMON_LVB_LEADING_BYTE/COMMON_LVB_TRAILING_BYTE) even for UTF-8 codepage |
| 425 | if (!IsWin10()) |
| 426 | bNewVal = false; |
| 427 | } |
| 428 | bDBCS_CP = bNewVal; |
| 429 | nLastCP = nCP; |
| 430 | } |
| 431 | } |
| 432 | |
| 433 | return bDBCS_CP; |
| 434 | } |