src/Utils/MiscUI/SciEdit.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2009-2018 - TortoiseGit
   4 // Copyright (C) 2003-2008, 2012-2018 - TortoiseSVN
   5
   6 // This program is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU General Public License
   8 // as published by the Free Software Foundation; either version 2
   9 // of the License, or (at your option) any later version.
  10
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software Foundation,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 #include "stdafx.h"
  21 #include "LoglistCommonResource.h"
  22 #include "PathUtils.h"
  23 #include "UnicodeUtils.h"
  24 #include <string>
  25 #include "registry.h"
  26 #include "SciEdit.h"
  27 #include "SmartHandle.h"
  28 #include "../../TortoiseUDiff/UDiffColors.h"
  29
  30 void CSciEditContextMenuInterface::InsertMenuItems(CMenu&, int&) {return;}
  31 bool CSciEditContextMenuInterface::HandleMenuItemClick(int, CSciEdit *) {return false;}
  32 void CSciEditContextMenuInterface::HandleSnippet(int, const CString &, CSciEdit *) { return; }
  33
  34
  35 #define STYLE_ISSUEBOLD                 11
  36 #define STYLE_ISSUEBOLDITALIC   12
  37 #define STYLE_BOLD                              14
  38 #define STYLE_ITALIC                    15
  39 #define STYLE_UNDERLINED                16
  40 #define STYLE_URL                               17
  41 #define INDIC_MISSPELLED                18
  42
  43 #define STYLE_MASK 0x1f
  44
  45 #define SCI_ADDWORD                     2000
  46
  47 struct loc_map {
  48         const char * cp;
  49         const char * def_enc;
  50 };
  51
  52 struct loc_map enc2locale[] = {
  53         {"28591","ISO8859-1"},
  54         {"28592","ISO8859-2"},
  55         {"28593","ISO8859-3"},
  56         {"28594","ISO8859-4"},
  57         {"28595","ISO8859-5"},
  58         {"28596","ISO8859-6"},
  59         {"28597","ISO8859-7"},
  60         {"28598","ISO8859-8"},
  61         {"28599","ISO8859-9"},
  62         {"28605","ISO8859-15"},
  63         {"20866","KOI8-R"},
  64         {"21866","KOI8-U"},
  65         {"1251","microsoft-cp1251"},
  66         {"65001","UTF-8"},
  67         };
  68
  69
  70 IMPLEMENT_DYNAMIC(CSciEdit, CWnd)
  71
  72 CSciEdit::CSciEdit(void) : m_DirectFunction(NULL)
  73         , m_DirectPointer(NULL)
  74         , m_spellcodepage(0)
  75         , m_separator(0)
  76         , m_typeSeparator(1)
  77         , m_bDoStyle(false)
  78         , m_nAutoCompleteMinChars(3)
  79         , m_SpellingCache(2000)
  80         , m_blockModifiedHandler(false)
  81 {
  82         m_hModule = ::LoadLibrary(L"SciLexer_tgit.dll");
  83 }
  84
  85 CSciEdit::~CSciEdit(void)
  86 {
  87         m_personalDict.Save();
  88 }
  89
  90 static std::unique_ptr<UINT[]> Icon2Image(HICON hIcon)
  91 {
  92         if (hIcon == nullptr)
  93                 return nullptr;
  94
  95         ICONINFO iconInfo;
  96         if (!GetIconInfo(hIcon, &iconInfo))
  97                 return nullptr;
  98
  99         BITMAP bm;
 100         if (!GetObject(iconInfo.hbmColor, sizeof(BITMAP), &bm))
 101                 return nullptr;
 102
 103         int width = bm.bmWidth;
 104         int height = bm.bmHeight;
 105         int bytesPerScanLine = (width * 3 + 3) & 0xFFFFFFFC;
 106         int size = bytesPerScanLine * height;
 107         BITMAPINFO infoheader;
 108         infoheader.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
 109         infoheader.bmiHeader.biWidth = width;
 110         infoheader.bmiHeader.biHeight = height;
 111         infoheader.bmiHeader.biPlanes = 1;
 112         infoheader.bmiHeader.biBitCount = 24;
 113         infoheader.bmiHeader.biCompression = BI_RGB;
 114         infoheader.bmiHeader.biSizeImage = size;
 115
 116         auto ptrb = std::make_unique<BYTE[]>(size * 2 + height * width * 4);
 117         LPBYTE pixelsIconRGB = ptrb.get();
 118         LPBYTE alphaPixels = pixelsIconRGB + size;
 119         HDC hDC = CreateCompatibleDC(nullptr);
 120         SCOPE_EXIT { DeleteDC(hDC); };
 121         HBITMAP hBmpOld = (HBITMAP)SelectObject(hDC, (HGDIOBJ)iconInfo.hbmColor);
 122         if (!GetDIBits(hDC, iconInfo.hbmColor, 0, height, (LPVOID)pixelsIconRGB, &infoheader, DIB_RGB_COLORS))
 123                 return nullptr;
 124
 125         SelectObject(hDC, hBmpOld);
 126         if (!GetDIBits(hDC, iconInfo.hbmMask, 0,height, (LPVOID)alphaPixels, &infoheader, DIB_RGB_COLORS))
 127                 return nullptr;
 128
 129         auto imagePixels = std::make_unique<UINT[]>(height * width);
 130         int lsSrc = width * 3;
 131         int vsDest = height - 1;
 132         for (int y = 0; y < height; y++)
 133         {
 134                 int linePosSrc = (vsDest - y) * lsSrc;
 135                 int linePosDest = y * width;
 136                 for (int x = 0; x < width; x++)
 137                 {
 138                         int currentDestPos = linePosDest + x;
 139                         int currentSrcPos = linePosSrc + x * 3;
 140                         imagePixels[currentDestPos] = (((UINT)(
 141                                 (
 142                                         ((pixelsIconRGB[currentSrcPos + 2]  /*Red*/)
 143                                         | (pixelsIconRGB[currentSrcPos + 1] << 8 /*Green*/))
 144                                         | pixelsIconRGB[currentSrcPos] << 16 /*Blue*/
 145                                 )
 146                                 | ((alphaPixels[currentSrcPos] ? 0 : 0xff) << 24))) & 0xffffffff);
 147                 }
 148         }
 149         return imagePixels;
 150 }
 151
 152 void CSciEdit::SetColors(bool recolorize)
 153 {
 154         Call(SCI_STYLESETFORE, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT));
 155         Call(SCI_STYLESETBACK, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOW));
 156         Call(SCI_SETSELFORE, TRUE, ::GetSysColor(COLOR_HIGHLIGHTTEXT));
 157         Call(SCI_SETSELBACK, TRUE, ::GetSysColor(COLOR_HIGHLIGHT));
 158         Call(SCI_SETCARETFORE, ::GetSysColor(COLOR_WINDOWTEXT));
 159
 160         if (recolorize)
 161                 Call(SCI_COLOURISE, 0, -1);
 162 }
 163
 164 void CSciEdit::Init(LONG lLanguage)
 165 {
 166         //Setup the direct access data
 167         m_DirectFunction = SendMessage(SCI_GETDIRECTFUNCTION, 0, 0);
 168         m_DirectPointer = SendMessage(SCI_GETDIRECTPOINTER, 0, 0);
 169         Call(SCI_SETMARGINWIDTHN, 1, 0);
 170         Call(SCI_SETUSETABS, 0);                //pressing TAB inserts spaces
 171         Call(SCI_SETWRAPVISUALFLAGS, SC_WRAPVISUALFLAG_END);
 172         Call(SCI_AUTOCSETIGNORECASE, 1);
 173         Call(SCI_SETLEXER, SCLEX_CONTAINER);
 174         Call(SCI_SETCODEPAGE, SC_CP_UTF8);
 175         Call(SCI_AUTOCSETFILLUPS, 0, (LPARAM)"\t([");
 176         Call(SCI_AUTOCSETMAXWIDTH, 0);
 177         //Set the default windows colors for edit controls
 178         SetColors(false);
 179         Call(SCI_SETMODEVENTMASK, SC_MOD_INSERTTEXT | SC_MOD_DELETETEXT | SC_PERFORMED_UNDO | SC_PERFORMED_REDO);
 180         Call(SCI_INDICSETSTYLE, INDIC_MISSPELLED, INDIC_SQUIGGLE);
 181         Call(SCI_INDICSETFORE, INDIC_MISSPELLED, RGB(255,0,0));
 182         CStringA sWordChars;
 183         CStringA sWhiteSpace;
 184         for (int i=0; i<255; ++i)
 185         {
 186                 if (i == '\r' || i == '\n')
 187                         continue;
 188                 else if (i < 0x20 || i == ' ')
 189                         sWhiteSpace += (char)i;
 190                 else if (isalnum(i) || i == '\'' || i == '_' || i == '-')
 191                         sWordChars += (char)i;
 192         }
 193         Call(SCI_SETWORDCHARS, 0, (LPARAM)(LPCSTR)sWordChars);
 194         Call(SCI_SETWHITESPACECHARS, 0, (LPARAM)(LPCSTR)sWhiteSpace);
 195         m_bDoStyle = ((DWORD)CRegStdDWORD(L"Software\\TortoiseGit\\StyleCommitMessages", TRUE)) == TRUE;
 196         m_nAutoCompleteMinChars = (int)(DWORD)CRegStdDWORD(L"Software\\TortoiseGit\\AutoCompleteMinChars", 3);
 197         // look for dictionary files and use them if found
 198         if ((lLanguage >= 0) && (((DWORD)CRegStdDWORD(L"Software\\TortoiseGit\\Spellchecker", TRUE)) == TRUE))
 199         {
 200                 if (!lLanguage || (lLanguage && !LoadDictionaries(lLanguage)))
 201                 {
 202                         long langId = GetUserDefaultLCID();
 203                         do
 204                         {
 205                                 LoadDictionaries(langId);
 206                                 DWORD lid = SUBLANGID(langId);
 207                                 lid--;
 208                                 if (lid > 0)
 209                                         langId = MAKELANGID(PRIMARYLANGID(langId), lid);
 210                                 else if (langId == 1033)
 211                                         langId = 0;
 212                                 else
 213                                         langId = 1033;
 214                         } while (langId && (!pChecker || !pThesaur));
 215                 }
 216         }
 217
 218         Call(SCI_SETEDGEMODE, EDGE_NONE);
 219         Call(SCI_SETWRAPMODE, SC_WRAP_WORD);
 220         Call(SCI_ASSIGNCMDKEY, SCK_END, SCI_LINEENDWRAP);
 221         Call(SCI_ASSIGNCMDKEY, SCK_END + (SCMOD_SHIFT << 16), SCI_LINEENDWRAPEXTEND);
 222         Call(SCI_ASSIGNCMDKEY, SCK_HOME, SCI_HOMEWRAP);
 223         Call(SCI_ASSIGNCMDKEY, SCK_HOME + (SCMOD_SHIFT << 16), SCI_HOMEWRAPEXTEND);
 224         if (CRegStdDWORD(L"Software\\TortoiseGit\\ScintillaDirect2D", FALSE) != FALSE)
 225         {
 226                 // set font quality for the popup window, since that window does not use D2D
 227                 Call(SCI_SETFONTQUALITY, SC_EFF_QUALITY_LCD_OPTIMIZED);
 228                 // now enable D2D
 229                 Call(SCI_SETTECHNOLOGY, SC_TECHNOLOGY_DIRECTWRITERETAIN);
 230                 Call(SCI_SETBUFFEREDDRAW, 0);
 231         }
 232 }
 233
 234
 235 void CSciEdit::Init(const ProjectProperties& props)
 236 {
 237         Init(props.lProjectLanguage);
 238         m_sCommand = CUnicodeUtils::GetUTF8(props.GetCheckRe());
 239         m_sBugID = CUnicodeUtils::GetUTF8(props.GetBugIDRe());
 240         m_sUrl = CUnicodeUtils::GetUTF8(props.sUrl);
 241
 242         Call(SCI_SETMOUSEDWELLTIME, 333);
 243
 244         if (props.nLogWidthMarker)
 245         {
 246                 Call(SCI_SETWRAPMODE, SC_WRAP_NONE);
 247                 Call(SCI_SETEDGEMODE, EDGE_LINE);
 248                 Call(SCI_SETEDGECOLUMN, props.nLogWidthMarker);
 249                 Call(SCI_SETSCROLLWIDTHTRACKING, TRUE);
 250                 Call(SCI_SETSCROLLWIDTH, 1);
 251         }
 252         else
 253         {
 254                 Call(SCI_SETEDGEMODE, EDGE_NONE);
 255                 Call(SCI_SETWRAPMODE, SC_WRAP_WORD);
 256         }
 257 }
 258
 259 void CSciEdit::SetIcon(const std::map<int, UINT> &icons)
 260 {
 261         int iconWidth = GetSystemMetrics(SM_CXSMICON);
 262         int iconHeight = GetSystemMetrics(SM_CYSMICON);
 263         Call(SCI_RGBAIMAGESETWIDTH, iconWidth);
 264         Call(SCI_RGBAIMAGESETHEIGHT, iconHeight);
 265         for (auto icon : icons)
 266         {
 267                 auto hIcon = (HICON)::LoadImage(AfxGetInstanceHandle(), MAKEINTRESOURCE(icon.second), IMAGE_ICON, iconWidth, iconHeight, LR_DEFAULTCOLOR);
 268                 auto bytes = Icon2Image(hIcon);
 269                 DestroyIcon(hIcon);
 270                 Call(SCI_REGISTERRGBAIMAGE, icon.first, (LPARAM)bytes.get());
 271         }
 272 }
 273
 274 BOOL CSciEdit::LoadDictionaries(LONG lLanguageID)
 275 {
 276         //Setup the spell checker and thesaurus
 277         TCHAR buf[6] = { 0 };
 278         CString sFolderUp = CPathUtils::GetAppParentDirectory();
 279         CString sFolderAppData = CPathUtils::GetAppDataDirectory();
 280         CString sFile;
 281
 282         GetLocaleInfo(MAKELCID(lLanguageID, SORT_DEFAULT), LOCALE_SISO639LANGNAME, buf, _countof(buf));
 283         sFile = buf;
 284         if (lLanguageID == 2074)
 285                 sFile += L"-Latn";
 286         sFile += L'_';
 287         GetLocaleInfo(MAKELCID(lLanguageID, SORT_DEFAULT), LOCALE_SISO3166CTRYNAME, buf, _countof(buf));
 288         sFile += buf;
 289         if (!pChecker)
 290         {
 291                 if ((PathFileExists(sFolderAppData + L"dic\\" + sFile + L".aff")) &&
 292                         (PathFileExists(sFolderAppData + L"dic\\" + sFile + L".dic")))
 293                 {
 294                         pChecker = std::make_unique<Hunspell>(CStringA(sFolderAppData + L"dic\\" + sFile + L".aff"), CStringA(sFolderAppData + L"dic\\" + sFile + L".dic"));
 295                 }
 296                 else if ((PathFileExists(sFolderUp + L"Languages\\" + sFile + L".aff")) &&
 297                         (PathFileExists(sFolderUp + L"Languages\\" + sFile + L".dic")))
 298                 {
 299                         pChecker = std::make_unique<Hunspell>(CStringA(sFolderUp + L"Languages\\" + sFile + L".aff"), CStringA(sFolderUp + L"Languages\\" + sFile + L".dic"));
 300                 }
 301                 if (pChecker)
 302                 {
 303                         const char* encoding = pChecker->get_dic_encoding();
 304                         CTraceToOutputDebugString::Instance()(__FUNCTION__ ": %s\n", encoding);
 305                         m_spellcodepage = 0;
 306                         for (int i = 0; i < _countof(enc2locale); ++i)
 307                         {
 308                                 if (strcmp(encoding, enc2locale[i].def_enc) == 0)
 309                                         m_spellcodepage = atoi(enc2locale[i].cp);
 310                         }
 311                         m_personalDict.Init(lLanguageID);
 312                 }
 313         }
 314 #if THESAURUS
 315         if (!pThesaur)
 316         {
 317                 if ((PathFileExists(sFolderAppData + L"dic\\th_" + sFile + L"_v2.idx")) &&
 318                         (PathFileExists(sFolderAppData + L"dic\\th_" + sFile + L"_v2.dat")))
 319                 {
 320                         pThesaur = std::make_unique<MyThes>(CStringA(sFolderAppData + L"dic\\th_" + sFile + L"_v2.idx"), CStringA(sFolderAppData + L"dic\\th_" + sFile + L"_v2.dat"));
 321                 }
 322                 else if ((PathFileExists(sFolderUp + L"Languages\\th_" + sFile + L"_v2.idx")) &&
 323                         (PathFileExists(sFolderUp + L"Languages\\th_" + sFile + L"_v2.dat")))
 324                 {
 325                         pThesaur = std::make_unique<MyThes>(CStringA(sFolderUp + L"Languages\\th_" + sFile + L"_v2.idx"), CStringA(sFolderUp + L"Languages\\th_" + sFile + L"_v2.dat"));
 326                 }
 327         }
 328 #endif
 329         if ((pThesaur)||(pChecker))
 330                 return TRUE;
 331         return FALSE;
 332 }
 333
 334 LRESULT CSciEdit::Call(UINT message, WPARAM wParam, LPARAM lParam)
 335 {
 336         ASSERT(::IsWindow(m_hWnd)); //Window must be valid
 337         ASSERT(m_DirectFunction); //Direct function must be valid
 338         return ((SciFnDirect) m_DirectFunction)(m_DirectPointer, message, wParam, lParam);
 339 }
 340
 341 CString CSciEdit::StringFromControl(const CStringA& text)
 342 {
 343         CString sText;
 344 #ifdef UNICODE
 345         int codepage = (int)Call(SCI_GETCODEPAGE);
 346         int reslen = MultiByteToWideChar(codepage, 0, text, text.GetLength(), 0, 0);
 347         MultiByteToWideChar(codepage, 0, text, text.GetLength(), sText.GetBuffer(reslen+1), reslen+1);
 348         sText.ReleaseBuffer(reslen);
 349 #else
 350         sText = text;
 351 #endif
 352         return sText;
 353 }
 354
 355 CStringA CSciEdit::StringForControl(const CString& text)
 356 {
 357         CStringA sTextA;
 358 #ifdef UNICODE
 359         int codepage = (int)SendMessage(SCI_GETCODEPAGE);
 360         int reslen = WideCharToMultiByte(codepage, 0, text, text.GetLength(), 0, 0, 0, 0);
 361         WideCharToMultiByte(codepage, 0, text, text.GetLength(), sTextA.GetBuffer(reslen), reslen, 0, 0);
 362         sTextA.ReleaseBuffer(reslen);
 363 #else
 364         sTextA = text;
 365 #endif
 366         ATLTRACE("string length %d\n", sTextA.GetLength());
 367         return sTextA;
 368 }
 369
 370 void CSciEdit::SetText(const CString& sText)
 371 {
 372         CStringA sTextA = StringForControl(sText);
 373         Call(SCI_SETTEXT, 0, (LPARAM)(LPCSTR)sTextA);
 374
 375         if (Call(SCI_GETSCROLLWIDTHTRACKING) != 0)
 376                 Call(SCI_SETSCROLLWIDTH, 1);
 377
 378         // Scintilla seems to have problems with strings that
 379         // aren't terminated by a newline char. Once that char
 380         // is there, it can be removed without problems.
 381         // So we add here a newline, then remove it again.
 382         Call(SCI_DOCUMENTEND);
 383         Call(SCI_NEWLINE);
 384         Call(SCI_DELETEBACK);
 385 }
 386
 387 void CSciEdit::InsertText(const CString& sText, bool bNewLine)
 388 {
 389         CStringA sTextA = StringForControl(sText);
 390         Call(SCI_REPLACESEL, 0, (LPARAM)(LPCSTR)sTextA);
 391         if (bNewLine)
 392                 Call(SCI_REPLACESEL, 0, (LPARAM)(LPCSTR)"\n");
 393 }
 394
 395 CString CSciEdit::GetText()
 396 {
 397         auto len = (int)Call(SCI_GETTEXT, 0, 0);
 398         CStringA sTextA;
 399         Call(SCI_GETTEXT, (WPARAM)(len + 1), (LPARAM)(LPCSTR)CStrBufA(sTextA, len + 1));
 400         return StringFromControl(sTextA);
 401 }
 402
 403 CString CSciEdit::GetWordUnderCursor(bool bSelectWord, bool allchars)
 404 {
 405         Sci_TextRange textrange;
 406         auto pos = (Sci_Position)Call(SCI_GETCURRENTPOS);
 407         textrange.chrg.cpMin = (int)Call(SCI_WORDSTARTPOSITION, pos, TRUE);
 408         if ((pos == textrange.chrg.cpMin)||(textrange.chrg.cpMin < 0))
 409                 return CString();
 410         textrange.chrg.cpMax = (int)Call(SCI_WORDENDPOSITION, textrange.chrg.cpMin, TRUE);
 411
 412         auto textbuffer = std::make_unique<char[]>(textrange.chrg.cpMax - textrange.chrg.cpMin + 1);
 413         textrange.lpstrText = textbuffer.get();
 414         Call(SCI_GETTEXTRANGE, 0, (LPARAM)&textrange);
 415         CString sRet = StringFromControl(textbuffer.get());
 416         if (m_bDoStyle && !allchars)
 417         {
 418                 for (const auto styleindicator : { '*', '_', '^' })
 419                 {
 420                         if (sRet.IsEmpty())
 421                                 break;
 422                         if (sRet[sRet.GetLength() - 1] == styleindicator)
 423                         {
 424                                 --textrange.chrg.cpMax;
 425                                 sRet.Truncate(sRet.GetLength() - 1);
 426                         }
 427                         if (sRet.IsEmpty())
 428                                 break;
 429                         if (sRet[0] == styleindicator)
 430                         {
 431                                 ++textrange.chrg.cpMin;
 432                                 sRet = sRet.Right(sRet.GetLength() - 1);
 433                         }
 434                 }
 435         }
 436         if (bSelectWord)
 437                 Call(SCI_SETSEL, textrange.chrg.cpMin, textrange.chrg.cpMax);
 438         return sRet;
 439 }
 440
 441 void CSciEdit::SetFont(CString sFontName, int iFontSizeInPoints)
 442 {
 443         Call(SCI_STYLESETFONT, STYLE_DEFAULT, (LPARAM)(LPCSTR)CUnicodeUtils::GetUTF8(sFontName).GetBuffer());
 444         Call(SCI_STYLESETSIZE, STYLE_DEFAULT, iFontSizeInPoints);
 445         Call(SCI_STYLECLEARALL);
 446
 447         LPARAM color = (LPARAM)GetSysColor(COLOR_HOTLIGHT);
 448         // set the styles for the bug ID strings
 449         Call(SCI_STYLESETBOLD, STYLE_ISSUEBOLD, (LPARAM)TRUE);
 450         Call(SCI_STYLESETFORE, STYLE_ISSUEBOLD, color);
 451         Call(SCI_STYLESETBOLD, STYLE_ISSUEBOLDITALIC, (LPARAM)TRUE);
 452         Call(SCI_STYLESETITALIC, STYLE_ISSUEBOLDITALIC, (LPARAM)TRUE);
 453         Call(SCI_STYLESETFORE, STYLE_ISSUEBOLDITALIC, color);
 454         Call(SCI_STYLESETHOTSPOT, STYLE_ISSUEBOLDITALIC, (LPARAM)TRUE);
 455
 456         // set the formatted text styles
 457         Call(SCI_STYLESETBOLD, STYLE_BOLD, (LPARAM)TRUE);
 458         Call(SCI_STYLESETITALIC, STYLE_ITALIC, (LPARAM)TRUE);
 459         Call(SCI_STYLESETUNDERLINE, STYLE_UNDERLINED, (LPARAM)TRUE);
 460
 461         // set the style for URLs
 462         Call(SCI_STYLESETFORE, STYLE_URL, color);
 463         Call(SCI_STYLESETHOTSPOT, STYLE_URL, (LPARAM)TRUE);
 464
 465         Call(SCI_SETHOTSPOTACTIVEUNDERLINE, (LPARAM)TRUE);
 466 }
 467
 468 void CSciEdit::SetAutoCompletionList(std::map<CString, int>&& list, TCHAR separator, TCHAR typeSeparator)
 469 {
 470         //copy the auto completion list.
 471
 472         //SK: instead of creating a copy of that list, we could accept a pointer
 473         //to the list and use that instead. But then the caller would have to make
 474         //sure that the list persists over the lifetime of the control!
 475         m_autolist.clear();
 476         m_autolist = std::move(list);
 477         m_separator = separator;
 478         m_typeSeparator = typeSeparator;
 479 }
 480
 481 BOOL CSciEdit::IsMisspelled(const CString& sWord)
 482 {
 483         // convert the string from the control to the encoding of the spell checker module.
 484         CStringA sWordA = GetWordForSpellChecker(sWord);
 485
 486         // words starting with a digit are treated as correctly spelled
 487         if (_istdigit(sWord.GetAt(0)))
 488                 return FALSE;
 489         // words in the personal dictionary are correct too
 490         if (m_personalDict.FindWord(sWord))
 491                 return FALSE;
 492
 493         // Check spell checking cache first.
 494         const BOOL *cacheResult = m_SpellingCache.try_get(std::wstring(sWord, sWord.GetLength()));
 495         if (cacheResult)
 496                 return *cacheResult;
 497
 498         // now we actually check the spelling...
 499         BOOL misspelled = !pChecker->spell(sWordA);
 500         if (misspelled)
 501         {
 502                 // the word is marked as misspelled, we now check whether the word
 503                 // is maybe a composite identifier
 504                 // a composite identifier consists of multiple words, with each word
 505                 // separated by a change in lower to uppercase letters
 506                 misspelled = FALSE;
 507                 if (sWord.GetLength() > 1)
 508                 {
 509                         int wordstart = 0;
 510                         int wordend = 1;
 511                         while (wordend < sWord.GetLength())
 512                         {
 513                                 while ((wordend < sWord.GetLength())&&(!_istupper(sWord[wordend])))
 514                                         wordend++;
 515                                 if ((wordstart == 0)&&(wordend == sWord.GetLength()))
 516                                 {
 517                                         // words in the auto list are also assumed correctly spelled
 518                                         if (m_autolist.find(sWord) != m_autolist.end())
 519                                                 misspelled = FALSE;
 520                                         else
 521                                                 misspelled = TRUE;
 522                                         break;
 523                                 }
 524                                 sWordA = GetWordForSpellChecker(sWord.Mid(wordstart, wordend - wordstart));
 525                                 if ((sWordA.GetLength() > 2) && (!pChecker->spell(sWordA)))
 526                                 {
 527                                         misspelled = TRUE;
 528                                         break;
 529                                 }
 530                                 wordstart = wordend;
 531                                 wordend++;
 532                         }
 533                 }
 534         }
 535
 536         // Update cache.
 537         m_SpellingCache.insert_or_assign(std::wstring(sWord, sWord.GetLength()), misspelled);
 538         return misspelled;
 539 }
 540
 541 void CSciEdit::CheckSpelling(Sci_Position startpos, Sci_Position endpos)
 542 {
 543         if (!pChecker)
 544                 return;
 545
 546         Sci_TextRange textrange;
 547         textrange.chrg.cpMin = static_cast<Sci_PositionCR>(startpos);
 548         textrange.chrg.cpMax = textrange.chrg.cpMin;
 549         auto lastpos = endpos;
 550         if (lastpos < 0)
 551                 lastpos = (int)Call(SCI_GETLENGTH) - textrange.chrg.cpMin;
 552         Call(SCI_SETINDICATORCURRENT, INDIC_MISSPELLED);
 553         while (textrange.chrg.cpMax < lastpos)
 554         {
 555                 textrange.chrg.cpMin = (int)Call(SCI_WORDSTARTPOSITION, textrange.chrg.cpMax+1, TRUE);
 556                 if (textrange.chrg.cpMin < textrange.chrg.cpMax)
 557                         break;
 558                 textrange.chrg.cpMax = (int)Call(SCI_WORDENDPOSITION, textrange.chrg.cpMin, TRUE);
 559                 if (textrange.chrg.cpMin == textrange.chrg.cpMax)
 560                 {
 561                         textrange.chrg.cpMax++;
 562                         // since Scintilla squiggles to the end of the text even if told to stop one char before it,
 563                         // we have to clear here the squiggly lines to the end.
 564                         if (textrange.chrg.cpMin)
 565                                 Call(SCI_INDICATORCLEARRANGE, textrange.chrg.cpMin-1, textrange.chrg.cpMax - textrange.chrg.cpMin + 1);
 566                         continue;
 567                 }
 568                 ATLASSERT(textrange.chrg.cpMax >= textrange.chrg.cpMin);
 569                 auto textbuffer = std::make_unique<char[]>(textrange.chrg.cpMax - textrange.chrg.cpMin + 2);
 570                 SecureZeroMemory(textbuffer.get(), textrange.chrg.cpMax - textrange.chrg.cpMin + 2);
 571                 textrange.lpstrText = textbuffer.get();
 572                 textrange.chrg.cpMax++;
 573                 Call(SCI_GETTEXTRANGE, 0, (LPARAM)&textrange);
 574                 auto len = (int)strlen(textrange.lpstrText);
 575                 if (len == 0)
 576                 {
 577                         textrange.chrg.cpMax--;
 578                         Call(SCI_GETTEXTRANGE, 0, (LPARAM)&textrange);
 579                         len = (int)strlen(textrange.lpstrText);
 580                         textrange.chrg.cpMax++;
 581                         len++;
 582                 }
 583                 if (len && textrange.lpstrText[len - 1] == '.')
 584                 {
 585                         // Try to ignore file names from the auto list.
 586                         // Do do this, for each word ending with '.' we extract next word and check
 587                         // whether the combined string is present in auto list.
 588                         Sci_TextRange twoWords;
 589                         twoWords.chrg.cpMin = textrange.chrg.cpMin;
 590                         twoWords.chrg.cpMax = (int)Call(SCI_WORDENDPOSITION, textrange.chrg.cpMax + 1, TRUE);
 591                         auto twoWordsBuffer = std::make_unique<char[]>(twoWords.chrg.cpMax - twoWords.chrg.cpMin + 1);
 592                         twoWords.lpstrText = twoWordsBuffer.get();
 593                         SecureZeroMemory(twoWords.lpstrText, twoWords.chrg.cpMax - twoWords.chrg.cpMin + 1);
 594                         Call(SCI_GETTEXTRANGE, 0, (LPARAM)&twoWords);
 595                         CString sWord = StringFromControl(twoWords.lpstrText);
 596                         if (m_autolist.find(sWord) != m_autolist.end())
 597                         {
 598                                 //mark word as correct (remove the squiggle line)
 599                                 Call(SCI_INDICATORCLEARRANGE, twoWords.chrg.cpMin, twoWords.chrg.cpMax - twoWords.chrg.cpMin);
 600                                 textrange.chrg.cpMax = twoWords.chrg.cpMax;
 601                                 continue;
 602                         }
 603                 }
 604                 if (len)
 605                         textrange.lpstrText[len - 1] = '\0';
 606                 textrange.chrg.cpMax--;
 607                 if (textrange.lpstrText[0])
 608                 {
 609                         CString sWord = StringFromControl(textrange.lpstrText);
 610                         if ((GetStyleAt(textrange.chrg.cpMin) != STYLE_URL) && IsMisspelled(sWord))
 611                         {
 612                                 //mark word as misspelled
 613                                 Call(SCI_INDICATORFILLRANGE, textrange.chrg.cpMin, textrange.chrg.cpMax - textrange.chrg.cpMin);
 614                         }
 615                         else
 616                         {
 617                                 //mark word as correct (remove the squiggle line)
 618                                 Call(SCI_INDICATORCLEARRANGE, textrange.chrg.cpMin, textrange.chrg.cpMax - textrange.chrg.cpMin);
 619                                 Call(SCI_INDICATORCLEARRANGE, textrange.chrg.cpMin, textrange.chrg.cpMax - textrange.chrg.cpMin + 1);
 620                         }
 621                 }
 622         }
 623 }
 624
 625 void CSciEdit::SuggestSpellingAlternatives()
 626 {
 627         if (!pChecker)
 628                 return;
 629         CString word = GetWordUnderCursor(true);
 630         Call(SCI_SETCURRENTPOS, Call(SCI_WORDSTARTPOSITION, Call(SCI_GETCURRENTPOS), TRUE));
 631         if (word.IsEmpty())
 632                 return;
 633         char ** wlst = nullptr;
 634         int ns = pChecker->suggest(&wlst, GetWordForSpellChecker(word));
 635         if (ns > 0)
 636         {
 637                 CString suggestions;
 638                 for (int i=0; i < ns; i++)
 639                 {
 640                         suggestions.AppendFormat(L"%s%c%d%c", (LPCTSTR)GetWordFromSpellChecker(wlst[i]), m_typeSeparator, AUTOCOMPLETE_SPELLING, m_separator);
 641                         free(wlst[i]);
 642                 }
 643                 free(wlst);
 644                 suggestions.TrimRight(m_separator);
 645                 if (suggestions.IsEmpty())
 646                         return;
 647                 Call(SCI_AUTOCSETSEPARATOR, (WPARAM)CStringA(m_separator).GetAt(0));
 648                 Call(SCI_AUTOCSETTYPESEPARATOR, (WPARAM)m_typeSeparator);
 649                 Call(SCI_AUTOCSETDROPRESTOFWORD, 1);
 650                 Call(SCI_AUTOCSHOW, 0, (LPARAM)(LPCSTR)StringForControl(suggestions));
 651                 return;
 652         }
 653         free(wlst);
 654 }
 655
 656 void CSciEdit::DoAutoCompletion(Sci_Position nMinPrefixLength)
 657 {
 658         if (m_autolist.empty())
 659                 return;
 660         auto pos = (int)(Sci_Position)Call(SCI_GETCURRENTPOS);
 661         if (pos != (int)Call(SCI_WORDENDPOSITION, pos, TRUE))
 662                 return; // don't auto complete if we're not at the end of a word
 663         CString word = GetWordUnderCursor();
 664         if (word.GetLength() < nMinPrefixLength)
 665         {
 666                 word = GetWordUnderCursor(false, true);
 667                 if (word.GetLength() < nMinPrefixLength)
 668                         return;         // don't auto complete yet, word is too short
 669         }
 670         CString sAutoCompleteList;
 671
 672         for (int i = 0; i < 2; ++i)
 673         {
 674                 std::vector<CString> words;
 675
 676                 pos = word.Find('-');
 677
 678                 CString wordLower = word;
 679                 wordLower.MakeLower();
 680                 CString wordHigher = word;
 681                 wordHigher.MakeUpper();
 682
 683                 words.push_back(word);
 684                 words.push_back(wordLower);
 685                 words.push_back(wordHigher);
 686
 687                 if (pos >= 0)
 688                 {
 689                         CString s = wordLower.Left(pos);
 690                         if (s.GetLength() >= nMinPrefixLength)
 691                                 words.push_back(s);
 692                         s = wordLower.Mid(pos + 1);
 693                         if (s.GetLength() >= nMinPrefixLength)
 694                                 words.push_back(s);
 695                         s = wordHigher.Left(pos);
 696                         if (s.GetLength() >= nMinPrefixLength)
 697                                 words.push_back(wordHigher.Left(pos));
 698                         s = wordHigher.Mid(pos + 1);
 699                         if (s.GetLength() >= nMinPrefixLength)
 700                                 words.push_back(wordHigher.Mid(pos+1));
 701                 }
 702
 703                 // note: the m_autolist is case-sensitive because
 704                 // its contents are also used to mark words in it
 705                 // as correctly spelled. If it would be case-insensitive,
 706                 // case spelling mistakes would not show up as misspelled.
 707                 std::map<CString, int> wordset;
 708                 for (const auto& w : words)
 709                 {
 710                         for (auto lowerit = m_autolist.lower_bound(w);
 711                                  lowerit != m_autolist.end(); ++lowerit)
 712                         {
 713                                 int compare = w.CompareNoCase(lowerit->first.Left(w.GetLength()));
 714                                 if (compare > 0)
 715                                         continue;
 716                                 else if (compare == 0)
 717                                         wordset.emplace(lowerit->first, lowerit->second);
 718                                 else
 719                                         break;
 720                         }
 721                 }
 722
 723                 for (const auto& w : wordset)
 724                         sAutoCompleteList.AppendFormat(L"%s%c%d%c", (LPCTSTR)w.first, m_typeSeparator, w.second, m_separator);
 725
 726                 sAutoCompleteList.TrimRight(m_separator);
 727
 728                 if (i == 0)
 729                 {
 730                         if (sAutoCompleteList.IsEmpty())
 731                         {
 732                                 // retry with all chars
 733                                 word = GetWordUnderCursor(false, true);
 734                         }
 735                         else
 736                                 break;
 737                 }
 738                 if (i == 1)
 739                 {
 740                         if (sAutoCompleteList.IsEmpty())
 741                                 return;
 742                 }
 743         }
 744
 745         Call(SCI_AUTOCSETSEPARATOR, (WPARAM)CStringA(m_separator).GetAt(0));
 746         Call(SCI_AUTOCSETTYPESEPARATOR, (WPARAM)m_typeSeparator);
 747         auto sForControl = StringForControl(sAutoCompleteList);
 748         Call(SCI_AUTOCSHOW, StringForControl(word).GetLength(), (LPARAM)(LPCSTR)sForControl);
 749 }
 750
 751 BOOL CSciEdit::OnChildNotify(UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pLResult)
 752 {
 753         if (message != WM_NOTIFY)
 754                 return CWnd::OnChildNotify(message, wParam, lParam, pLResult);
 755
 756         LPNMHDR lpnmhdr = (LPNMHDR) lParam;
 757         SCNotification * lpSCN = (SCNotification *)lParam;
 758
 759         if(lpnmhdr->hwndFrom==m_hWnd)
 760         {
 761                 switch(lpnmhdr->code)
 762                 {
 763                 case SCN_CHARADDED:
 764                         {
 765                                 if ((lpSCN->ch < 32)&&(lpSCN->ch != 13)&&(lpSCN->ch != 10))
 766                                         Call(SCI_DELETEBACK);
 767                                 else
 768                                         DoAutoCompletion(m_nAutoCompleteMinChars);
 769                                 return TRUE;
 770                         }
 771                         break;
 772                 case SCN_AUTOCSELECTION:
 773                         {
 774                                 CString text = StringFromControl(lpSCN->text);
 775                                 if (m_autolist[text] == AUTOCOMPLETE_SNIPPET)
 776                                 {
 777                                         Call(SCI_AUTOCCANCEL);
 778                                         for (INT_PTR handlerindex = 0; handlerindex < m_arContextHandlers.GetCount(); ++handlerindex)
 779                                         {
 780                                                 CSciEditContextMenuInterface * pHandler = m_arContextHandlers.GetAt(handlerindex);
 781                                                 pHandler->HandleSnippet(m_autolist[text], text, this);
 782                                         }
 783                                 }
 784                                 return TRUE;
 785                         }
 786                 case SCN_STYLENEEDED:
 787                 {
 788                         auto startpos = (Sci_Position)Call(SCI_GETENDSTYLED);
 789                         auto endpos = ((SCNotification*)lpnmhdr)->position;
 790
 791                         auto startwordpos = (int)Call(SCI_WORDSTARTPOSITION, startpos, true);
 792                         auto endwordpos = (int)Call(SCI_WORDENDPOSITION, endpos, true);
 793
 794                         MarkEnteredBugID(startwordpos, endwordpos);
 795                         if (m_bDoStyle)
 796                                 StyleEnteredText(startwordpos, endwordpos);
 797
 798                         StyleURLs(startwordpos, endwordpos);
 799                         CheckSpelling(startwordpos, endwordpos);
 800
 801                         // Tell scintilla editor that we styled all requested range.
 802                         Call(SCI_STARTSTYLING, endwordpos);
 803                         Call(SCI_SETSTYLING, 0, 0);
 804                 }
 805                 break;
 806                 case SCN_MODIFIED:
 807                 {
 808                         if (!m_blockModifiedHandler && (lpSCN->modificationType & (SC_MOD_INSERTTEXT | SC_MOD_DELETETEXT)))
 809                         {
 810                                 auto firstline = (int)Call(SCI_GETFIRSTVISIBLELINE);
 811                                 auto lastline = firstline + (int)Call(SCI_LINESONSCREEN);
 812                                 auto firstpos = (Sci_Position)Call(SCI_POSITIONFROMLINE, firstline);
 813                                 auto lastpos = (Sci_Position)Call(SCI_GETLINEENDPOSITION, lastline);
 814                                 auto pos1 = lpSCN->position;
 815                                 auto pos2 = pos1 + lpSCN->length;
 816                                 // always use the bigger range
 817                                 firstpos = min(firstpos, pos1);
 818                                 lastpos = max(lastpos, pos2);
 819
 820                                 WrapLines(firstpos, lastpos);
 821                         }
 822                         break;
 823                 }
 824                 case SCN_DWELLSTART:
 825                 case SCN_HOTSPOTCLICK:
 826                         {
 827                                 Sci_TextRange textrange;
 828                                 textrange.chrg.cpMin = static_cast<Sci_PositionCR>(lpSCN->position);
 829                                 textrange.chrg.cpMax = static_cast<Sci_PositionCR>(lpSCN->position);
 830                                 auto style = GetStyleAt(lpSCN->position);
 831                                 if (style != STYLE_ISSUEBOLDITALIC && style != STYLE_URL)
 832                                         break;
 833                                 while (GetStyleAt(textrange.chrg.cpMin - 1) == style)
 834                                         --textrange.chrg.cpMin;
 835                                 while (GetStyleAt(textrange.chrg.cpMax + 1) == style)
 836                                         ++textrange.chrg.cpMax;
 837                                 ++textrange.chrg.cpMax;
 838                                 auto textbuffer = std::make_unique<char[]>(textrange.chrg.cpMax - textrange.chrg.cpMin + 1);
 839                                 textrange.lpstrText = textbuffer.get();
 840                                 Call(SCI_GETTEXTRANGE, 0, (LPARAM)&textrange);
 841                                 CString url;
 842                                 if (style == STYLE_URL)
 843                                 {
 844                                         url = StringFromControl(textbuffer.get());
 845                                         if (url.Find(L'@') > 0 && !PathIsURL(url))
 846                                                 url = L"mailto:" + url;
 847                                 }
 848                                 else
 849                                 {
 850                                         url = m_sUrl;
 851                                         url.Replace(L"%BUGID%", StringFromControl(textbuffer.get()));
 852                                 }
 853                                 if (!url.IsEmpty())
 854                                 {
 855                                         if (lpnmhdr->code == SCN_HOTSPOTCLICK)
 856                                                 ShellExecute(GetParent()->GetSafeHwnd(), L"open", url, nullptr, nullptr, SW_SHOWDEFAULT);
 857                                         else
 858                                         {
 859                                                 CStringA sTextA = StringForControl(url);
 860                                                 Call(SCI_CALLTIPSHOW, lpSCN->position + 3, (LPARAM)(LPCSTR)sTextA);
 861                                         }
 862                                 }
 863                         }
 864                         break;
 865                 case SCN_DWELLEND:
 866                         Call(SCI_CALLTIPCANCEL);
 867                         break;
 868                 }
 869         }
 870         return CWnd::OnChildNotify(message, wParam, lParam, pLResult);
 871 }
 872
 873 BEGIN_MESSAGE_MAP(CSciEdit, CWnd)
 874         ON_WM_KEYDOWN()
 875         ON_WM_CONTEXTMENU()
 876 END_MESSAGE_MAP()
 877
 878 void CSciEdit::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
 879 {
 880         switch (nChar)
 881         {
 882         case (VK_ESCAPE):
 883                 {
 884                         if ((Call(SCI_AUTOCACTIVE)==0)&&(Call(SCI_CALLTIPACTIVE)==0))
 885                                 ::SendMessage(GetParent()->GetSafeHwnd(), WM_CLOSE, 0, 0);
 886                 }
 887                 break;
 888         }
 889         CWnd::OnKeyDown(nChar, nRepCnt, nFlags);
 890 }
 891
 892 BOOL CSciEdit::PreTranslateMessage(MSG* pMsg)
 893 {
 894         if (pMsg->message == WM_KEYDOWN)
 895         {
 896                 switch (pMsg->wParam)
 897                 {
 898                 case VK_SPACE:
 899                         {
 900                                 if ((GetKeyState(VK_CONTROL) & 0x8000) && ((GetKeyState(VK_MENU) & 0x8000) == 0))
 901                                 {
 902                                         DoAutoCompletion(1);
 903                                         return TRUE;
 904                                 }
 905                         }
 906                         break;
 907                 case VK_TAB:
 908                         // The TAB cannot be handled in OnKeyDown because it is too late by then.
 909                         {
 910                                 if ((GetKeyState(VK_CONTROL) & 0x8000) && ((GetKeyState(VK_MENU) & 0x8000) == 0))
 911                                 {
 912                                         //Ctrl-Tab was pressed, this means we should provide the user with
 913                                         //a list of possible spell checking alternatives to the word under
 914                                         //the cursor
 915                                         SuggestSpellingAlternatives();
 916                                         return TRUE;
 917                                 }
 918                                 else if (!Call(SCI_AUTOCACTIVE))
 919                                 {
 920                                         ::PostMessage(GetParent()->GetSafeHwnd(), WM_NEXTDLGCTL, GetKeyState(VK_SHIFT)&0x8000, 0);
 921                                         return TRUE;
 922                                 }
 923                         }
 924                         break;
 925                 }
 926         }
 927         return CWnd::PreTranslateMessage(pMsg);
 928 }
 929
 930 void CSciEdit::OnContextMenu(CWnd* /*pWnd*/, CPoint point)
 931 {
 932         auto anchor = (Sci_Position)Call(SCI_GETANCHOR);
 933         auto currentpos = (Sci_Position)Call(SCI_GETCURRENTPOS);
 934         auto selstart = (int)(Sci_Position)Call(SCI_GETSELECTIONSTART);
 935         auto selend = (int)(Sci_Position)Call(SCI_GETSELECTIONEND);
 936         Sci_Position pointpos = 0;
 937         if ((point.x == -1) && (point.y == -1))
 938         {
 939                 CRect rect;
 940                 GetClientRect(&rect);
 941                 ClientToScreen(&rect);
 942                 point = rect.CenterPoint();
 943                 pointpos = (Sci_Position)Call(SCI_GETCURRENTPOS);
 944         }
 945         else
 946         {
 947                 // change the cursor position to the point where the user
 948                 // right-clicked.
 949                 CPoint clientpoint = point;
 950                 ScreenToClient(&clientpoint);
 951                 pointpos = (Sci_Position)Call(SCI_POSITIONFROMPOINT, clientpoint.x, clientpoint.y);
 952         }
 953         CString sMenuItemText;
 954         CMenu popup;
 955         bool bRestoreCursor = true;
 956         if (popup.CreatePopupMenu())
 957         {
 958                 bool bCanUndo = !!Call(SCI_CANUNDO);
 959                 bool bCanRedo = !!Call(SCI_CANREDO);
 960                 bool bHasSelection = (selend-selstart > 0);
 961                 bool bCanPaste = !!Call(SCI_CANPASTE);
 962                 bool bIsReadOnly = !!Call(SCI_GETREADONLY);
 963                 UINT uEnabledMenu = MF_STRING | MF_ENABLED;
 964                 UINT uDisabledMenu = MF_STRING | MF_GRAYED;
 965
 966                 // find the word under the cursor
 967                 CString sWord;
 968                 if (pointpos)
 969                 {
 970                         // setting the cursor clears the selection
 971                         Call(SCI_SETANCHOR, pointpos);
 972                         Call(SCI_SETCURRENTPOS, pointpos);
 973                         sWord = GetWordUnderCursor();
 974                         // restore the selection
 975                         Call(SCI_SETSELECTIONSTART, selstart);
 976                         Call(SCI_SETSELECTIONEND, selend);
 977                 }
 978                 else
 979                         sWord = GetWordUnderCursor();
 980                 CStringA worda = GetWordForSpellChecker(sWord);
 981
 982                 int nCorrections = 1;
 983                 bool bSpellAdded = false;
 984                 // check if the word under the cursor is spelled wrong
 985                 if ((pChecker)&&(!worda.IsEmpty()) && !bIsReadOnly)
 986                 {
 987                         char ** wlst = nullptr;
 988                         // get the spell suggestions
 989                         int ns = pChecker->suggest(&wlst,worda);
 990                         if (ns > 0)
 991                         {
 992                                 // add the suggestions to the context menu
 993                                 for (int i=0; i < ns; i++)
 994                                 {
 995                                         bSpellAdded = true;
 996                                         CString sug = GetWordFromSpellChecker(wlst[i]);
 997                                         popup.InsertMenu((UINT)-1, 0, nCorrections++, sug);
 998                                         free(wlst[i]);
 999                                 }
1000                                 free(wlst);
1001                         }
1002                         else
1003                                 free(wlst);
1004                 }
1005                 // only add a separator if spelling correction suggestions were added
1006                 if (bSpellAdded)
1007                         popup.AppendMenu(MF_SEPARATOR);
1008
1009                 // also allow the user to add the word to the custom dictionary so
1010                 // it won't show up as misspelled anymore
1011                 if ((sWord.GetLength()<PDICT_MAX_WORD_LENGTH)&&((pChecker)&&(m_autolist.find(sWord) == m_autolist.end())&&(!pChecker->spell(worda)))&&
1012                         (!_istdigit(sWord.GetAt(0)))&&(!m_personalDict.FindWord(sWord)) && !bIsReadOnly)
1013                 {
1014                         sMenuItemText.Format(IDS_SCIEDIT_ADDWORD, (LPCTSTR)sWord);
1015                         popup.AppendMenu(uEnabledMenu, SCI_ADDWORD, sMenuItemText);
1016                         // another separator
1017                         popup.AppendMenu(MF_SEPARATOR);
1018                 }
1019
1020                 // add the 'default' entries
1021                 sMenuItemText.LoadString(IDS_SCIEDIT_UNDO);
1022                 popup.AppendMenu(bCanUndo ? uEnabledMenu : uDisabledMenu, SCI_UNDO, sMenuItemText);
1023                 sMenuItemText.LoadString(IDS_SCIEDIT_REDO);
1024                 popup.AppendMenu(bCanRedo ? uEnabledMenu : uDisabledMenu, SCI_REDO, sMenuItemText);
1025
1026                 popup.AppendMenu(MF_SEPARATOR);
1027
1028                 sMenuItemText.LoadString(IDS_SCIEDIT_CUT);
1029                 popup.AppendMenu(!bIsReadOnly && bHasSelection ? uEnabledMenu : uDisabledMenu, SCI_CUT, sMenuItemText);
1030                 sMenuItemText.LoadString(IDS_SCIEDIT_COPY);
1031                 popup.AppendMenu(bHasSelection ? uEnabledMenu : uDisabledMenu, SCI_COPY, sMenuItemText);
1032                 sMenuItemText.LoadString(IDS_SCIEDIT_PASTE);
1033                 popup.AppendMenu(bCanPaste ? uEnabledMenu : uDisabledMenu, SCI_PASTE, sMenuItemText);
1034
1035                 popup.AppendMenu(MF_SEPARATOR);
1036
1037                 sMenuItemText.LoadString(IDS_SCIEDIT_SELECTALL);
1038                 popup.AppendMenu(uEnabledMenu, SCI_SELECTALL, sMenuItemText);
1039
1040                 if (!bIsReadOnly && Call(SCI_GETEDGECOLUMN))
1041                 {
1042                         popup.AppendMenu(MF_SEPARATOR);
1043
1044                         sMenuItemText.LoadString(IDS_SCIEDIT_SPLITLINES);
1045                         popup.AppendMenu(bHasSelection ? uEnabledMenu : uDisabledMenu, SCI_LINESSPLIT, sMenuItemText);
1046                 }
1047
1048                 if (m_arContextHandlers.GetCount() > 0)
1049                         popup.AppendMenu(MF_SEPARATOR);
1050
1051                 int nCustoms = nCorrections;
1052                 // now add any custom context menus
1053                 for (INT_PTR handlerindex = 0; handlerindex < m_arContextHandlers.GetCount(); ++handlerindex)
1054                 {
1055                         CSciEditContextMenuInterface * pHandler = m_arContextHandlers.GetAt(handlerindex);
1056                         pHandler->InsertMenuItems(popup, nCustoms);
1057                 }
1058 #if THESAURUS
1059                 // add found thesauri to sub menu's
1060                 CMenu thesaurs;
1061                 int nThesaurs = 0;
1062                 CPtrArray menuArray;
1063                 if (thesaurs.CreatePopupMenu())
1064                 {
1065                         if ((nCustoms > nCorrections || m_arContextHandlers.IsEmpty()) && !bIsReadOnly)
1066                                 popup.AppendMenu(MF_SEPARATOR);
1067                         if (pThesaur && !worda.IsEmpty() && !bIsReadOnly)
1068                         {
1069                                 mentry * pmean;
1070                                 worda.MakeLower();
1071                                 int count = pThesaur->Lookup(worda, worda.GetLength(),&pmean);
1072                                 if (count)
1073                                 {
1074                                         mentry * pm = pmean;
1075                                         for (int  i=0; i < count; i++)
1076                                         {
1077                                                 CMenu * submenu = new CMenu();
1078                                                 menuArray.Add(submenu);
1079                                                 submenu->CreateMenu();
1080                                                 for (int j=0; j < pm->count; j++)
1081                                                 {
1082                                                         CString sug = CString(pm->psyns[j]);
1083                                                         submenu->InsertMenu((UINT)-1, 0, nCorrections + nCustoms + (nThesaurs++), sug);
1084                                                 }
1085                                                 thesaurs.InsertMenu((UINT)-1, MF_POPUP, (UINT_PTR)(submenu->m_hMenu), CString(pm->defn));
1086                                                 pm++;
1087                                         }
1088                                 }
1089                                 if ((count > 0)&&(point.x >= 0))
1090                                 {
1091 #ifdef IDS_SPELLEDIT_THESAURUS
1092                                         sMenuItemText.LoadString(IDS_SPELLEDIT_THESAURUS);
1093                                         popup.InsertMenu((UINT)-1, MF_POPUP, (UINT_PTR)thesaurs.m_hMenu, sMenuItemText);
1094 #else
1095                                         popup.InsertMenu((UINT)-1, MF_POPUP, (UINT_PTR)thesaurs.m_hMenu, L"Thesaurus");
1096 #endif
1097                                         nThesaurs = nCustoms;
1098                                 }
1099                                 else
1100                                 {
1101                                         sMenuItemText.LoadString(IDS_SPELLEDIT_NOTHESAURUS);
1102                                         popup.AppendMenu(MF_DISABLED | MF_GRAYED | MF_STRING, 0, sMenuItemText);
1103                                 }
1104
1105                                 pThesaur->CleanUpAfterLookup(&pmean, count);
1106                         }
1107                         else if (!bIsReadOnly)
1108                         {
1109                                 sMenuItemText.LoadString(IDS_SPELLEDIT_NOTHESAURUS);
1110                                 popup.AppendMenu(MF_DISABLED | MF_GRAYED | MF_STRING, 0, sMenuItemText);
1111                         }
1112                 }
1113 #endif
1114                 int cmd = popup.TrackPopupMenu(TPM_RETURNCMD | TPM_LEFTALIGN | TPM_NONOTIFY, point.x, point.y, this);
1115                 switch (cmd)
1116                 {
1117                 case 0:
1118                         break;  // no command selected
1119                 case SCI_SELECTALL:
1120                         bRestoreCursor = false;
1121                         // fall through
1122                 case SCI_UNDO:
1123                 case SCI_REDO:
1124                 case SCI_CUT:
1125                 case SCI_COPY:
1126                 case SCI_PASTE:
1127                         Call(cmd);
1128                         break;
1129                 case SCI_ADDWORD:
1130                         m_personalDict.AddWord(sWord);
1131                         CheckSpelling((Sci_Position)Call(SCI_POSITIONFROMLINE, (int)Call(SCI_GETFIRSTVISIBLELINE)), (Sci_Position)Call(SCI_POSITIONFROMLINE, (int)Call(SCI_GETFIRSTVISIBLELINE) + (int)Call(SCI_LINESONSCREEN)));
1132                         break;
1133                 case SCI_LINESSPLIT:
1134                         {
1135                                 auto marker = (int)(Call(SCI_GETEDGECOLUMN) * (int)Call(SCI_TEXTWIDTH, 0, (LPARAM)" "));
1136                                 if (marker)
1137                                 {
1138                                         m_blockModifiedHandler = true;
1139                                         SCOPE_EXIT{ m_blockModifiedHandler = false; };
1140                                         Call(SCI_TARGETFROMSELECTION);
1141                                         Call(SCI_LINESJOIN);
1142                                         Call(SCI_LINESSPLIT, marker);
1143                                 }
1144                         }
1145                         break;
1146                 default:
1147                         if (cmd < nCorrections)
1148                         {
1149                                 Call(SCI_SETANCHOR, pointpos);
1150                                 Call(SCI_SETCURRENTPOS, pointpos);
1151                                 GetWordUnderCursor(true);
1152                                 CString temp;
1153                                 popup.GetMenuString(cmd, temp, 0);
1154                                 // setting the cursor clears the selection
1155                                 Call(SCI_REPLACESEL, 0, (LPARAM)(LPCSTR)StringForControl(temp));
1156                         }
1157                         else if (cmd < (nCorrections+nCustoms))
1158                         {
1159                                 for (INT_PTR handlerindex = 0; handlerindex < m_arContextHandlers.GetCount(); ++handlerindex)
1160                                 {
1161                                         CSciEditContextMenuInterface * pHandler = m_arContextHandlers.GetAt(handlerindex);
1162                                         if (pHandler->HandleMenuItemClick(cmd, this))
1163                                                 break;
1164                                 }
1165                         }
1166 #if THESAURUS
1167                         else if (cmd <= (nThesaurs+nCorrections+nCustoms))
1168                         {
1169                                 Call(SCI_SETANCHOR, pointpos);
1170                                 Call(SCI_SETCURRENTPOS, pointpos);
1171                                 GetWordUnderCursor(true);
1172                                 CString temp;
1173                                 thesaurs.GetMenuString(cmd, temp, 0);
1174                                 Call(SCI_REPLACESEL, 0, (LPARAM)(LPCSTR)StringForControl(temp));
1175                         }
1176 #endif
1177                 }
1178 #ifdef THESAURUS
1179                 for (INT_PTR index = 0; index < menuArray.GetCount(); ++index)
1180                 {
1181                         CMenu * pMenu = (CMenu*)menuArray[index];
1182                         delete pMenu;
1183                 }
1184 #endif
1185         }
1186         if (bRestoreCursor)
1187         {
1188                 // restore the anchor and cursor position
1189                 Call(SCI_SETCURRENTPOS, currentpos);
1190                 Call(SCI_SETANCHOR, anchor);
1191         }
1192 }
1193
1194 bool CSciEdit::StyleEnteredText(Sci_Position startstylepos, Sci_Position endstylepos)
1195 {
1196         bool bStyled = false;
1197         const auto line = (int)Call(SCI_LINEFROMPOSITION, startstylepos);
1198         const auto line_number_end = (int)Call(SCI_LINEFROMPOSITION, endstylepos);
1199         for (auto line_number = line; line_number <= line_number_end; ++line_number)
1200         {
1201                 auto offset = (Sci_Position)Call(SCI_POSITIONFROMLINE, line_number);
1202                 auto line_len = (int)Call(SCI_LINELENGTH, line_number);
1203                 auto linebuffer = std::make_unique<char[]>(line_len + 1);
1204                 Call(SCI_GETLINE, line_number, (LPARAM)linebuffer.get());
1205                 linebuffer[line_len] = '\0';
1206                 Sci_Position start = 0;
1207                 Sci_Position end = 0;
1208                 while (FindStyleChars(linebuffer.get(), '*', start, end))
1209                 {
1210                         Call(SCI_STARTSTYLING, start + offset, STYLE_BOLD);
1211                         Call(SCI_SETSTYLING, end-start, STYLE_BOLD);
1212                         bStyled = true;
1213                         start = end;
1214                 }
1215                 start = 0;
1216                 end = 0;
1217                 while (FindStyleChars(linebuffer.get(), '^', start, end))
1218                 {
1219                         Call(SCI_STARTSTYLING, start + offset, STYLE_ITALIC);
1220                         Call(SCI_SETSTYLING, end-start, STYLE_ITALIC);
1221                         bStyled = true;
1222                         start = end;
1223                 }
1224                 start = 0;
1225                 end = 0;
1226                 while (FindStyleChars(linebuffer.get(), '_', start, end))
1227                 {
1228                         Call(SCI_STARTSTYLING, start + offset, STYLE_UNDERLINED);
1229                         Call(SCI_SETSTYLING, end-start, STYLE_UNDERLINED);
1230                         bStyled = true;
1231                         start = end;
1232                 }
1233         }
1234         return bStyled;
1235 }
1236
1237 bool CSciEdit::WrapLines(Sci_Position startpos, Sci_Position endpos)
1238 {
1239         auto markerX = (Sci_Position)(Call(SCI_GETEDGECOLUMN) * (int)Call(SCI_TEXTWIDTH, 0, (LPARAM)" "));
1240         if (markerX)
1241         {
1242                 Call(SCI_SETTARGETSTART, startpos);
1243                 Call(SCI_SETTARGETEND, endpos);
1244                 Call(SCI_LINESSPLIT, markerX);
1245                 return true;
1246         }
1247         return false;
1248 }
1249
1250 void CSciEdit::AdvanceUTF8(const char * str, int& pos)
1251 {
1252         if ((str[pos] & 0xE0)==0xC0)
1253         {
1254                 // utf8 2-byte sequence
1255                 pos += 2;
1256         }
1257         else if ((str[pos] & 0xF0)==0xE0)
1258         {
1259                 // utf8 3-byte sequence
1260                 pos += 3;
1261         }
1262         else if ((str[pos] & 0xF8)==0xF0)
1263         {
1264                 // utf8 4-byte sequence
1265                 pos += 4;
1266         }
1267         else
1268                 pos++;
1269 }
1270
1271 bool CSciEdit::FindStyleChars(const char* line, char styler, Sci_Position& start, Sci_Position& end)
1272 {
1273         int i=0;
1274         int u=0;
1275         while (i < start)
1276         {
1277                 AdvanceUTF8(line, i);
1278                 u++;
1279         }
1280
1281         bool bFoundMarker = false;
1282         CString sULine = CUnicodeUtils::GetUnicode(line);
1283         // find a starting marker
1284         while (line[i] != 0)
1285         {
1286                 if (line[i] == styler)
1287                 {
1288                         if ((line[i+1]!=0)&&(IsCharAlphaNumeric(sULine[u+1]))&&
1289                                 (((u>0)&&(!IsCharAlphaNumeric(sULine[u-1]))) || (u==0)))
1290                         {
1291                                 start = i+1;
1292                                 AdvanceUTF8(line, i);
1293                                 u++;
1294                                 bFoundMarker = true;
1295                                 break;
1296                         }
1297                 }
1298                 AdvanceUTF8(line, i);
1299                 u++;
1300         }
1301         if (!bFoundMarker)
1302                 return false;
1303         // find ending marker
1304         bFoundMarker = false;
1305         while (line[i])
1306         {
1307                 if (line[i] == styler)
1308                 {
1309                         if ((IsCharAlphaNumeric(sULine[u-1]))&&
1310                                 ((((u+1)<sULine.GetLength())&&(!IsCharAlphaNumeric(sULine[u+1]))) || ((u+1) == sULine.GetLength()))
1311                                 )
1312                         {
1313                                 end = i;
1314                                 i++;
1315                                 bFoundMarker = true;
1316                                 break;
1317                         }
1318                 }
1319                 AdvanceUTF8(line, i);
1320                 u++;
1321         }
1322         return bFoundMarker;
1323 }
1324
1325 BOOL CSciEdit::MarkEnteredBugID(Sci_Position startstylepos, Sci_Position endstylepos)
1326 {
1327         if (m_sCommand.IsEmpty())
1328                 return FALSE;
1329         // get the text between the start and end position we have to style
1330         const auto line_number = (int)Call(SCI_LINEFROMPOSITION, startstylepos);
1331         auto start_pos = (Sci_Position)Call(SCI_POSITIONFROMLINE, (WPARAM)line_number);
1332         auto end_pos = endstylepos;
1333
1334         if (start_pos == end_pos)
1335                 return FALSE;
1336         if (start_pos > end_pos)
1337         {
1338                 auto switchtemp = start_pos;
1339                 start_pos = end_pos;
1340                 end_pos = switchtemp;
1341         }
1342
1343         auto textbuffer = std::make_unique<char[]>(end_pos - start_pos + 2);
1344         Sci_TextRange textrange;
1345         textrange.lpstrText = textbuffer.get();
1346         textrange.chrg.cpMin = static_cast<Sci_PositionCR>(start_pos);
1347         textrange.chrg.cpMax = static_cast<Sci_PositionCR>(end_pos);
1348         Call(SCI_GETTEXTRANGE, 0, (LPARAM)&textrange);
1349         CStringA msg = CStringA(textbuffer.get());
1350
1351         Call(SCI_STARTSTYLING, start_pos, STYLE_MASK);
1352
1353         try
1354         {
1355                 if (!m_sBugID.IsEmpty())
1356                 {
1357                         // match with two regex strings (without grouping!)
1358                         const std::regex regCheck(m_sCommand);
1359                         const std::regex regBugID(m_sBugID);
1360                         const std::sregex_iterator end;
1361                         std::string s = msg;
1362                         LONG pos = 0;
1363                         // note:
1364                         // if start_pos is 0, we're styling from the beginning and let the ^ char match the beginning of the line
1365                         // that way, the ^ matches the very beginning of the log message and not the beginning of further lines.
1366                         // problem is: this only works *while* entering log messages. If a log message is pasted in whole or
1367                         // multiple lines are pasted, start_pos can be 0 and styling goes over multiple lines. In that case, those
1368                         // additional line starts also match ^
1369                         for (std::sregex_iterator it(s.cbegin(), s.cend(), regCheck, start_pos != 0 ? std::regex_constants::match_not_bol : std::regex_constants::match_default); it != end; ++it)
1370                         {
1371                                 // clear the styles up to the match position
1372                                 Call(SCI_SETSTYLING, it->position(0)-pos, STYLE_DEFAULT);
1373
1374                                 // (*it)[0] is the matched string
1375                                 std::string matchedString = (*it)[0];
1376                                 LONG matchedpos = 0;
1377                                 for (std::sregex_iterator it2(matchedString.cbegin(), matchedString.cend(), regBugID); it2 != end; ++it2)
1378                                 {
1379                                         ATLTRACE("matched id : %s\n", std::string((*it2)[0]).c_str());
1380
1381                                         // bold style up to the id match
1382                                         ATLTRACE("position = %ld\n", it2->position(0));
1383                                         if (it2->position(0))
1384                                                 Call(SCI_SETSTYLING, it2->position(0) - matchedpos, STYLE_ISSUEBOLD);
1385                                         // bold and recursive style for the bug ID itself
1386                                         if ((*it2)[0].str().size())
1387                                                 Call(SCI_SETSTYLING, (*it2)[0].str().size(), STYLE_ISSUEBOLDITALIC);
1388                                         matchedpos = (LONG)(it2->position(0) + (*it2)[0].str().size());
1389                                 }
1390                                 if ((matchedpos)&&(matchedpos < (LONG)matchedString.size()))
1391                                 {
1392                                         Call(SCI_SETSTYLING, matchedString.size() - matchedpos, STYLE_ISSUEBOLD);
1393                                 }
1394                                 pos = (LONG)(it->position(0) + matchedString.size());
1395                         }
1396                         // bold style for the rest of the string which isn't matched
1397                         if (s.size()-pos)
1398                                 Call(SCI_SETSTYLING, s.size()-pos, STYLE_DEFAULT);
1399                 }
1400                 else
1401                 {
1402                         const std::regex regCheck(m_sCommand);
1403                         const std::sregex_iterator end;
1404                         std::string s = msg;
1405                         LONG pos = 0;
1406                         for (std::sregex_iterator it(s.cbegin(), s.cend(), regCheck); it != end; ++it)
1407                         {
1408                                 // clear the styles up to the match position
1409                                 if (it->position(0) - pos >= 0)
1410                                         Call(SCI_SETSTYLING, it->position(0) - pos, STYLE_DEFAULT);
1411                                 pos = (LONG)it->position(0);
1412
1413                                 const std::smatch match = *it;
1414                                 // we define group 1 as the whole issue text and
1415                                 // group 2 as the bug ID
1416                                 if (match.size() >= 2)
1417                                 {
1418                                         ATLTRACE("matched id : %s\n", std::string(match[1]).c_str());
1419                                         if (match[1].first - s.cbegin() - pos >= 0)
1420                                                 Call(SCI_SETSTYLING, match[1].first - s.cbegin() - pos, STYLE_ISSUEBOLD);
1421                                         Call(SCI_SETSTYLING, std::string(match[1]).size(), STYLE_ISSUEBOLDITALIC);
1422                                         pos = (LONG)(match[1].second - s.cbegin());
1423                                 }
1424                         }
1425                 }
1426         }
1427         catch (std::exception&) {}
1428
1429         return FALSE;
1430 }
1431
1432 //similar code in AppUtils.cpp
1433 bool CSciEdit::IsValidURLChar(unsigned char ch)
1434 {
1435         return isalnum(ch) ||
1436                 ch == '_' || ch == '/' || ch == ';' || ch == '?' || ch == '&' || ch == '=' ||
1437                 ch == '%' || ch == ':' || ch == '.' || ch == '#' || ch == '-' || ch == '+' ||
1438                 ch == '|' || ch == '>' || ch == '<' || ch == '!' || ch == '@' || ch == '~';
1439 }
1440
1441 //similar code in AppUtils.cpp
1442 void CSciEdit::StyleURLs(Sci_Position startstylepos, Sci_Position endstylepos)
1443 {
1444         const auto line_number = (int)Call(SCI_LINEFROMPOSITION, startstylepos);
1445         startstylepos = (Sci_Position)Call(SCI_POSITIONFROMLINE, (WPARAM)line_number);
1446
1447         auto len = endstylepos - startstylepos + 1;
1448         auto textbuffer = std::make_unique<char[]>(len + 1);
1449         Sci_TextRange textrange;
1450         textrange.lpstrText = textbuffer.get();
1451         textrange.chrg.cpMin = static_cast<Sci_PositionCR>(startstylepos);
1452         textrange.chrg.cpMax = static_cast<Sci_PositionCR>(endstylepos);
1453         Call(SCI_GETTEXTRANGE, 0, (LPARAM)&textrange);
1454         // we're dealing with utf8 encoded text here, which means one glyph is
1455         // not necessarily one byte/wchar_t
1456         // that's why we use CStringA to still get a correct char index
1457         CStringA msg = textbuffer.get();
1458
1459         int starturl = -1;
1460         for (int i = 0; i <= msg.GetLength(); AdvanceUTF8(msg, i))
1461         {
1462                 if ((i < len) && IsValidURLChar(msg[i]))
1463                 {
1464                         if (starturl < 0)
1465                                 starturl = i;
1466                 }
1467                 else
1468                 {
1469                         if (starturl >= 0)
1470                         {
1471                                 bool strip = true;
1472                                 if (msg[starturl] == '<' && i < len) // try to detect and do not strip URLs put within <>
1473                                 {
1474                                         while (starturl <= i && msg[starturl] == '<') // strip leading '<'
1475                                                 ++starturl;
1476                                         strip = false;
1477                                         i = starturl;
1478                                         while (i < len && msg[i] != '\r' && msg[i] != '\n' && msg[i] != '>') // find first '>' or new line after resetting i to start position
1479                                                 AdvanceUTF8(msg, i);
1480                                 }
1481
1482                                 int skipTrailing = 0;
1483                                 while (strip && i - skipTrailing - 1 > starturl && (msg[i - skipTrailing - 1] == '.' || msg[i - skipTrailing - 1] == '-' || msg[i - skipTrailing - 1] == '?' || msg[i - skipTrailing - 1] == ';' || msg[i - skipTrailing - 1] == ':' || msg[i - skipTrailing - 1] == '>' || msg[i - skipTrailing - 1] == '<' || msg[i - skipTrailing - 1] == '!'))
1484                                         ++skipTrailing;
1485
1486                                 if (!IsUrlOrEmail(msg.Mid(starturl, i - starturl - skipTrailing)))
1487                                 {
1488                                         starturl = -1;
1489                                         continue;
1490                                 }
1491
1492                                 ASSERT(startstylepos + i - skipTrailing <= endstylepos);
1493                                 Call(SCI_STARTSTYLING, startstylepos + starturl, STYLE_URL);
1494                                 Call(SCI_SETSTYLING, i - starturl - skipTrailing, STYLE_URL);
1495                         }
1496                         starturl = -1;
1497                 }
1498         }
1499 }
1500
1501 bool CSciEdit::IsUrlOrEmail(const CStringA& sText)
1502 {
1503         if (!PathIsURLA(sText))
1504         {
1505                 auto atpos = sText.Find('@');
1506                 if (atpos <= 0)
1507                         return false;
1508                 if (sText.Find('.', atpos) <= atpos + 1) // a dot must follow after the @, but not directly after it
1509                         return false;
1510                 if (sText.Find(':', atpos) < 0) // do not detect git@example.com:something as an email address
1511                         return true;
1512                 return false;
1513         }
1514         for (const CStringA& prefix : { "http://", "https://", "git://", "ftp://", "file://", "mailto:" })
1515         {
1516                 if (strncmp(sText, prefix, prefix.GetLength()) == 0 && sText.GetLength() != prefix.GetLength())
1517                         return true;
1518         }
1519         return false;
1520 }
1521
1522 CStringA CSciEdit::GetWordForSpellChecker(const CString& sWord)
1523 {
1524         // convert the string from the control to the encoding of the spell checker module.
1525         CStringA sWordA;
1526         if (m_spellcodepage)
1527         {
1528                 char * buf = sWordA.GetBuffer(sWord.GetLength() * 4 + 1);
1529                 int lengthIncTerminator = WideCharToMultiByte(m_spellcodepage, 0, sWord, -1, buf, sWord.GetLength() * 4, nullptr, nullptr);
1530                 if (lengthIncTerminator == 0)
1531                         return ""; // converting to the codepage failed
1532                 sWordA.ReleaseBuffer(lengthIncTerminator - 1);
1533         }
1534         else
1535                 sWordA = CStringA(sWord);
1536
1537         sWordA.Trim("\'\".,");
1538
1539         if (m_bDoStyle)
1540         {
1541                 for (const auto styleindicator : { '*', '_', '^' })
1542                 {
1543                         if (sWordA.IsEmpty())
1544                                 break;
1545                         if (sWordA[sWordA.GetLength() - 1] == styleindicator)
1546                                 sWordA.Truncate(sWordA.GetLength() - 1);
1547                         if (sWordA.IsEmpty())
1548                                 break;
1549                         if (sWordA[0] == styleindicator)
1550                                 sWordA = sWordA.Right(sWordA.GetLength() - 1);
1551                 }
1552         }
1553
1554         return sWordA;
1555 }
1556
1557 CString CSciEdit::GetWordFromSpellChecker(const CStringA& sWordA)
1558 {
1559         CString sWord;
1560         if (m_spellcodepage)
1561         {
1562                 wchar_t * buf = sWord.GetBuffer(sWordA.GetLength() * 2);
1563                 int lengthIncTerminator = MultiByteToWideChar(m_spellcodepage, 0, sWordA, -1, buf, sWordA.GetLength() * 2);
1564                 if (lengthIncTerminator == 0)
1565                         return L"";
1566                 sWord.ReleaseBuffer(lengthIncTerminator - 1);
1567         }
1568         else
1569                 sWord = CString(sWordA);
1570
1571         sWord.Trim(L"\'\".,");
1572
1573         return sWord;
1574 }
1575
1576 bool CSciEdit::IsUTF8(LPVOID pBuffer, size_t cb)
1577 {
1578         if (cb < 2)
1579                 return true;
1580         UINT16 * pVal = (UINT16 *)pBuffer;
1581         UINT8 * pVal2 = (UINT8 *)(pVal+1);
1582         // scan the whole buffer for a 0x0000 sequence
1583         // if found, we assume a binary file
1584         for (size_t i=0; i<(cb-2); i=i+2)
1585         {
1586                 if (0x0000 == *pVal++)
1587                         return false;
1588         }
1589         pVal = (UINT16 *)pBuffer;
1590         if (*pVal == 0xFEFF)
1591                 return false;
1592         if (cb < 3)
1593                 return false;
1594         if (*pVal == 0xBBEF)
1595         {
1596                 if (*pVal2 == 0xBF)
1597                         return true;
1598         }
1599         // check for illegal UTF8 chars
1600         pVal2 = (UINT8 *)pBuffer;
1601         for (size_t i=0; i<cb; ++i)
1602         {
1603                 if ((*pVal2 == 0xC0)||(*pVal2 == 0xC1)||(*pVal2 >= 0xF5))
1604                         return false;
1605                 pVal2++;
1606         }
1607         pVal2 = (UINT8 *)pBuffer;
1608         bool bUTF8 = false;
1609         for (size_t i=0; i<(cb-3); ++i)
1610         {
1611                 if ((*pVal2 & 0xE0)==0xC0)
1612                 {
1613                         pVal2++;i++;
1614                         if ((*pVal2 & 0xC0)!=0x80)
1615                                 return false;
1616                         bUTF8 = true;
1617                 }
1618                 if ((*pVal2 & 0xF0)==0xE0)
1619                 {
1620                         pVal2++;i++;
1621                         if ((*pVal2 & 0xC0)!=0x80)
1622                                 return false;
1623                         pVal2++;i++;
1624                         if ((*pVal2 & 0xC0)!=0x80)
1625                                 return false;
1626                         bUTF8 = true;
1627                 }
1628                 if ((*pVal2 & 0xF8)==0xF0)
1629                 {
1630                         pVal2++;i++;
1631                         if ((*pVal2 & 0xC0)!=0x80)
1632                                 return false;
1633                         pVal2++;i++;
1634                         if ((*pVal2 & 0xC0)!=0x80)
1635                                 return false;
1636                         pVal2++;i++;
1637                         if ((*pVal2 & 0xC0)!=0x80)
1638                                 return false;
1639                         bUTF8 = true;
1640                 }
1641                 pVal2++;
1642         }
1643         if (bUTF8)
1644                 return true;
1645         return false;
1646 }
1647
1648 void CSciEdit::SetAStyle(int style, COLORREF fore, COLORREF back, int size, const char *face)
1649 {
1650         Call(SCI_STYLESETFORE, style, fore);
1651         Call(SCI_STYLESETBACK, style, back);
1652         if (size >= 1)
1653                 Call(SCI_STYLESETSIZE, style, size);
1654         if (face)
1655                 Call(SCI_STYLESETFONT, style, reinterpret_cast<LPARAM>(face));
1656 }
1657
1658 void CSciEdit::SetUDiffStyle()
1659 {
1660         m_bDoStyle = false;
1661         SetAStyle(STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT), ::GetSysColor(COLOR_WINDOW),
1662                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffFontSize", 10),
1663                 CUnicodeUtils::StdGetUTF8(CRegStdString(L"Software\\TortoiseGit\\UDiffFontName", L"Consolas")).c_str());
1664         Call(SCI_SETTABWIDTH, CRegStdDWORD(L"Software\\TortoiseGit\\UDiffTabSize", 4));
1665
1666         Call(SCI_SETREADONLY, TRUE);
1667         //LRESULT pix = Call(SCI_TEXTWIDTH, STYLE_LINENUMBER, (LPARAM)"_99999");
1668         //Call(SCI_SETMARGINWIDTHN, 0, pix);
1669         //Call(SCI_SETMARGINWIDTHN, 1);
1670         //Call(SCI_SETMARGINWIDTHN, 2);
1671         //Set the default windows colors for edit controls
1672         SetColors(false);
1673
1674         //SendEditor(SCI_SETREADONLY, FALSE);
1675         Call(SCI_CLEARALL);
1676         Call(EM_EMPTYUNDOBUFFER);
1677         Call(SCI_SETSAVEPOINT);
1678         Call(SCI_CANCEL);
1679         Call(SCI_SETUNDOCOLLECTION, 0);
1680
1681         Call(SCI_SETUNDOCOLLECTION, 1);
1682         Call(SCI_SETWRAPMODE,SC_WRAP_NONE);
1683
1684         //::SetFocus(m_hWndEdit);
1685         Call(EM_EMPTYUNDOBUFFER);
1686         Call(SCI_SETSAVEPOINT);
1687         Call(SCI_GOTOPOS, 0);
1688
1689         Call(SCI_CLEARDOCUMENTSTYLE, 0, 0);
1690
1691         HIGHCONTRAST highContrast = { 0 };
1692         highContrast.cbSize = sizeof(HIGHCONTRAST);
1693         if (SystemParametersInfo(SPI_GETHIGHCONTRAST, 0, &highContrast, 0) == TRUE && (highContrast.dwFlags & HCF_HIGHCONTRASTON))
1694         {
1695                 Call(SCI_SETLEXER, SCLEX_NULL);
1696                 return;
1697         }
1698
1699         //SetAStyle(SCE_DIFF_DEFAULT, RGB(0, 0, 0));
1700         SetAStyle(SCE_DIFF_COMMAND,
1701                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffForeCommandColor", UDIFF_COLORFORECOMMAND),
1702                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffBackCommandColor", UDIFF_COLORBACKCOMMAND));
1703         SetAStyle(SCE_DIFF_POSITION,
1704                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffForePositionColor", UDIFF_COLORFOREPOSITION),
1705                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffBackPositionColor", UDIFF_COLORBACKPOSITION));
1706         SetAStyle(SCE_DIFF_HEADER,
1707                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffForeHeaderColor", UDIFF_COLORFOREHEADER),
1708                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffBackHeaderColor", UDIFF_COLORBACKHEADER));
1709         SetAStyle(SCE_DIFF_COMMENT,
1710                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffForeCommentColor", UDIFF_COLORFORECOMMENT),
1711                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffBackCommentColor", UDIFF_COLORBACKCOMMENT));
1712         Call(SCI_STYLESETBOLD, SCE_DIFF_COMMENT, TRUE);
1713         SetAStyle(SCE_DIFF_ADDED,
1714                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffForeAddedColor", UDIFF_COLORFOREADDED),
1715                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffBackAddedColor", UDIFF_COLORBACKADDED));
1716         SetAStyle(SCE_DIFF_DELETED,
1717                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffForeRemovedColor", UDIFF_COLORFOREREMOVED),
1718                 CRegStdDWORD(L"Software\\TortoiseGit\\UDiffBackRemovedColor", UDIFF_COLORBACKREMOVED));
1719
1720         Call(SCI_SETLEXER, SCLEX_DIFF);
1721         Call(SCI_SETKEYWORDS, 0, (LPARAM)"revision");
1722         Call(SCI_COLOURISE, 0, -1);
1723 }
1724
1725 int CSciEdit::LoadFromFile(CString &filename)
1726 {
1727         CAutoFILE fp = _wfsopen(filename, L"rb", _SH_DENYWR);
1728         if (!fp)
1729                 return -1;
1730
1731         char data[4096] = { 0 };
1732         size_t lenFile = fread(data, 1, sizeof(data), fp);
1733         bool bUTF8 = IsUTF8(data, lenFile);
1734         while (lenFile > 0)
1735         {
1736                 Call(SCI_ADDTEXT, lenFile, reinterpret_cast<LPARAM>(static_cast<char *>(data)));
1737                 lenFile = fread(data, 1, sizeof(data), fp);
1738         }
1739         Call(SCI_SETCODEPAGE, bUTF8 ? SC_CP_UTF8 : GetACP());
1740         return 0;
1741 }
1742
1743 void CSciEdit::RestyleBugIDs()
1744 {
1745         auto endstylepos = (int)Call(SCI_GETLENGTH);
1746         // clear all styles
1747         Call(SCI_STARTSTYLING, 0, STYLE_MASK);
1748         Call(SCI_SETSTYLING, endstylepos, STYLE_DEFAULT);
1749         // style the bug IDs
1750         MarkEnteredBugID(0, endstylepos);
1751 }
1752
1753 ULONG CSciEdit::GetGestureStatus(CPoint /*ptTouch*/)
1754 {
1755         return 0;
1756 }