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-rwxr-xr-xsrc/Document.cpp1577
1 files changed, 1577 insertions, 0 deletions
diff --git a/src/Document.cpp b/src/Document.cpp
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index 0000000..92be926
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+++ b/src/Document.cpp
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+// Scintilla source code edit control
+/** @file Document.cxx
+ ** Text document that handles notifications, DBCS, styling, words and end of line.
+ **/
+// Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#include "Platform.h"
+
+#include "Scintilla.h"
+#include "SVector.h"
+#include "CellBuffer.h"
+#include "CharClassify.h"
+#include "Document.h"
+#include "RESearch.h"
+
+// This is ASCII specific but is safe with chars >= 0x80
+static inline bool isspacechar(unsigned char ch) {
+ return (ch == ' ') || ((ch >= 0x09) && (ch <= 0x0d));
+}
+
+static inline bool IsPunctuation(char ch) {
+ return isascii(ch) && ispunct(ch);
+}
+
+static inline bool IsADigit(char ch) {
+ return isascii(ch) && isdigit(ch);
+}
+
+static inline bool IsLowerCase(char ch) {
+ return isascii(ch) && islower(ch);
+}
+
+static inline bool IsUpperCase(char ch) {
+ return isascii(ch) && isupper(ch);
+}
+
+Document::Document() {
+ refCount = 0;
+#ifdef unix
+ eolMode = SC_EOL_LF;
+#else
+ eolMode = SC_EOL_CRLF;
+#endif
+ dbcsCodePage = 0;
+ stylingBits = 5;
+ stylingBitsMask = 0x1F;
+ stylingMask = 0;
+ endStyled = 0;
+ styleClock = 0;
+ enteredCount = 0;
+ enteredReadOnlyCount = 0;
+ tabInChars = 8;
+ indentInChars = 0;
+ actualIndentInChars = 8;
+ useTabs = true;
+ tabIndents = true;
+ backspaceUnindents = false;
+ watchers = 0;
+ lenWatchers = 0;
+
+ matchesValid = false;
+ pre = 0;
+ substituted = 0;
+}
+
+Document::~Document() {
+ for (int i = 0; i < lenWatchers; i++) {
+ watchers[i].watcher->NotifyDeleted(this, watchers[i].userData);
+ }
+ delete []watchers;
+ watchers = 0;
+ lenWatchers = 0;
+ delete pre;
+ pre = 0;
+ delete []substituted;
+ substituted = 0;
+}
+
+// Increase reference count and return its previous value.
+int Document::AddRef() {
+ return refCount++;
+}
+
+// Decrease reference count and return its previous value.
+// Delete the document if reference count reaches zero.
+int Document::Release() {
+ int curRefCount = --refCount;
+ if (curRefCount == 0)
+ delete this;
+ return curRefCount;
+}
+
+void Document::SetSavePoint() {
+ cb.SetSavePoint();
+ NotifySavePoint(true);
+}
+
+int Document::AddMark(int line, int markerNum) {
+ int prev = cb.AddMark(line, markerNum);
+ DocModification mh(SC_MOD_CHANGEMARKER, LineStart(line), 0, 0, 0, line);
+ mh.line = line;
+ NotifyModified(mh);
+ return prev;
+}
+
+void Document::AddMarkSet(int line, int valueSet) {
+ unsigned int m = valueSet;
+ for (int i = 0; m; i++, m >>= 1)
+ if (m & 1)
+ cb.AddMark(line, i);
+ DocModification mh(SC_MOD_CHANGEMARKER, LineStart(line), 0, 0, 0, line);
+ mh.line = line;
+ NotifyModified(mh);
+}
+
+void Document::DeleteMark(int line, int markerNum) {
+ cb.DeleteMark(line, markerNum);
+ DocModification mh(SC_MOD_CHANGEMARKER, LineStart(line), 0, 0, 0, line);
+ mh.line = line;
+ NotifyModified(mh);
+}
+
+void Document::DeleteMarkFromHandle(int markerHandle) {
+ cb.DeleteMarkFromHandle(markerHandle);
+ DocModification mh(SC_MOD_CHANGEMARKER, 0, 0, 0, 0);
+ mh.line = -1;
+ NotifyModified(mh);
+}
+
+void Document::DeleteAllMarks(int markerNum) {
+ cb.DeleteAllMarks(markerNum);
+ DocModification mh(SC_MOD_CHANGEMARKER, 0, 0, 0, 0);
+ mh.line = -1;
+ NotifyModified(mh);
+}
+
+int Document::LineStart(int line) {
+ return cb.LineStart(line);
+}
+
+int Document::LineEnd(int line) {
+ if (line == LinesTotal() - 1) {
+ return LineStart(line + 1);
+ } else {
+ int position = LineStart(line + 1) - 1;
+ // When line terminator is CR+LF, may need to go back one more
+ if ((position > LineStart(line)) && (cb.CharAt(position - 1) == '\r')) {
+ position--;
+ }
+ return position;
+ }
+}
+
+int Document::LineFromPosition(int pos) {
+ return cb.LineFromPosition(pos);
+}
+
+int Document::LineEndPosition(int position) {
+ return LineEnd(LineFromPosition(position));
+}
+
+int Document::VCHomePosition(int position) {
+ int line = LineFromPosition(position);
+ int startPosition = LineStart(line);
+ int endLine = LineStart(line + 1) - 1;
+ int startText = startPosition;
+ while (startText < endLine && (cb.CharAt(startText) == ' ' || cb.CharAt(startText) == '\t' ) )
+ startText++;
+ if (position == startText)
+ return startPosition;
+ else
+ return startText;
+}
+
+int Document::SetLevel(int line, int level) {
+ int prev = cb.SetLevel(line, level);
+ if (prev != level) {
+ DocModification mh(SC_MOD_CHANGEFOLD | SC_MOD_CHANGEMARKER,
+ LineStart(line), 0, 0, 0);
+ mh.line = line;
+ mh.foldLevelNow = level;
+ mh.foldLevelPrev = prev;
+ NotifyModified(mh);
+ }
+ return prev;
+}
+
+static bool IsSubordinate(int levelStart, int levelTry) {
+ if (levelTry & SC_FOLDLEVELWHITEFLAG)
+ return true;
+ else
+ return (levelStart & SC_FOLDLEVELNUMBERMASK) < (levelTry & SC_FOLDLEVELNUMBERMASK);
+}
+
+int Document::GetLastChild(int lineParent, int level) {
+ if (level == -1)
+ level = GetLevel(lineParent) & SC_FOLDLEVELNUMBERMASK;
+ int maxLine = LinesTotal();
+ int lineMaxSubord = lineParent;
+ while (lineMaxSubord < maxLine - 1) {
+ EnsureStyledTo(LineStart(lineMaxSubord + 2));
+ if (!IsSubordinate(level, GetLevel(lineMaxSubord + 1)))
+ break;
+ lineMaxSubord++;
+ }
+ if (lineMaxSubord > lineParent) {
+ if (level > (GetLevel(lineMaxSubord + 1) & SC_FOLDLEVELNUMBERMASK)) {
+ // Have chewed up some whitespace that belongs to a parent so seek back
+ if (GetLevel(lineMaxSubord) & SC_FOLDLEVELWHITEFLAG) {
+ lineMaxSubord--;
+ }
+ }
+ }
+ return lineMaxSubord;
+}
+
+int Document::GetFoldParent(int line) {
+ int level = GetLevel(line) & SC_FOLDLEVELNUMBERMASK;
+ int lineLook = line - 1;
+ while ((lineLook > 0) && (
+ (!(GetLevel(lineLook) & SC_FOLDLEVELHEADERFLAG)) ||
+ ((GetLevel(lineLook) & SC_FOLDLEVELNUMBERMASK) >= level))
+ ) {
+ lineLook--;
+ }
+ if ((GetLevel(lineLook) & SC_FOLDLEVELHEADERFLAG) &&
+ ((GetLevel(lineLook) & SC_FOLDLEVELNUMBERMASK) < level)) {
+ return lineLook;
+ } else {
+ return -1;
+ }
+}
+
+int Document::ClampPositionIntoDocument(int pos) {
+ return Platform::Clamp(pos, 0, Length());
+}
+
+bool Document::IsCrLf(int pos) {
+ if (pos < 0)
+ return false;
+ if (pos >= (Length() - 1))
+ return false;
+ return (cb.CharAt(pos) == '\r') && (cb.CharAt(pos + 1) == '\n');
+}
+
+static const int maxBytesInDBCSCharacter=5;
+
+int Document::LenChar(int pos) {
+ if (pos < 0) {
+ return 1;
+ } else if (IsCrLf(pos)) {
+ return 2;
+ } else if (SC_CP_UTF8 == dbcsCodePage) {
+ unsigned char ch = static_cast<unsigned char>(cb.CharAt(pos));
+ if (ch < 0x80)
+ return 1;
+ int len = 2;
+ if (ch >= (0x80 + 0x40 + 0x20))
+ len = 3;
+ int lengthDoc = Length();
+ if ((pos + len) > lengthDoc)
+ return lengthDoc -pos;
+ else
+ return len;
+ } else if (dbcsCodePage) {
+ char mbstr[maxBytesInDBCSCharacter+1];
+ int i;
+ for (i=0; i<Platform::DBCSCharMaxLength(); i++) {
+ mbstr[i] = cb.CharAt(pos+i);
+ }
+ mbstr[i] = '\0';
+ return Platform::DBCSCharLength(dbcsCodePage, mbstr);
+ } else {
+ return 1;
+ }
+}
+
+// Normalise a position so that it is not halfway through a two byte character.
+// This can occur in two situations -
+// When lines are terminated with \r\n pairs which should be treated as one character.
+// When displaying DBCS text such as Japanese.
+// If moving, move the position in the indicated direction.
+int Document::MovePositionOutsideChar(int pos, int moveDir, bool checkLineEnd) {
+ //Platform::DebugPrintf("NoCRLF %d %d\n", pos, moveDir);
+ // If out of range, just return minimum/maximum value.
+ if (pos <= 0)
+ return 0;
+ if (pos >= Length())
+ return Length();
+
+ // PLATFORM_ASSERT(pos > 0 && pos < Length());
+ if (checkLineEnd && IsCrLf(pos - 1)) {
+ if (moveDir > 0)
+ return pos + 1;
+ else
+ return pos - 1;
+ }
+
+ // Not between CR and LF
+
+ if (dbcsCodePage) {
+ if (SC_CP_UTF8 == dbcsCodePage) {
+ unsigned char ch = static_cast<unsigned char>(cb.CharAt(pos));
+ while ((pos > 0) && (pos < Length()) && (ch >= 0x80) && (ch < (0x80 + 0x40))) {
+ // ch is a trail byte
+ if (moveDir > 0)
+ pos++;
+ else
+ pos--;
+ ch = static_cast<unsigned char>(cb.CharAt(pos));
+ }
+ } else {
+ // Anchor DBCS calculations at start of line because start of line can
+ // not be a DBCS trail byte.
+ int posCheck = LineStart(LineFromPosition(pos));
+ while (posCheck < pos) {
+ char mbstr[maxBytesInDBCSCharacter+1];
+ int i;
+ for(i=0;i<Platform::DBCSCharMaxLength();i++) {
+ mbstr[i] = cb.CharAt(posCheck+i);
+ }
+ mbstr[i] = '\0';
+
+ int mbsize = Platform::DBCSCharLength(dbcsCodePage, mbstr);
+ if (posCheck + mbsize == pos) {
+ return pos;
+ } else if (posCheck + mbsize > pos) {
+ if (moveDir > 0) {
+ return posCheck + mbsize;
+ } else {
+ return posCheck;
+ }
+ }
+ posCheck += mbsize;
+ }
+ }
+ }
+
+ return pos;
+}
+
+void Document::ModifiedAt(int pos) {
+ if (endStyled > pos)
+ endStyled = pos;
+}
+
+void Document::CheckReadOnly() {
+ if (cb.IsReadOnly() && enteredReadOnlyCount == 0) {
+ enteredReadOnlyCount++;
+ NotifyModifyAttempt();
+ enteredReadOnlyCount--;
+ }
+}
+
+// Document only modified by gateways DeleteChars, InsertStyledString, Undo, Redo, and SetStyleAt.
+// SetStyleAt does not change the persistent state of a document
+
+// Unlike Undo, Redo, and InsertStyledString, the pos argument is a cell number not a char number
+bool Document::DeleteChars(int pos, int len) {
+ if (len == 0)
+ return false;
+ if ((pos + len) > Length())
+ return false;
+ CheckReadOnly();
+ if (enteredCount != 0) {
+ return false;
+ } else {
+ enteredCount++;
+ if (!cb.IsReadOnly()) {
+ NotifyModified(
+ DocModification(
+ SC_MOD_BEFOREDELETE | SC_PERFORMED_USER,
+ pos, len,
+ 0, 0));
+ int prevLinesTotal = LinesTotal();
+ bool startSavePoint = cb.IsSavePoint();
+ const char *text = cb.DeleteChars(pos * 2, len * 2);
+ if (startSavePoint && cb.IsCollectingUndo())
+ NotifySavePoint(!startSavePoint);
+ if ((pos < Length()) || (pos == 0))
+ ModifiedAt(pos);
+ else
+ ModifiedAt(pos-1);
+ NotifyModified(
+ DocModification(
+ SC_MOD_DELETETEXT | SC_PERFORMED_USER,
+ pos, len,
+ LinesTotal() - prevLinesTotal, text));
+ }
+ enteredCount--;
+ }
+ return !cb.IsReadOnly();
+}
+
+/**
+ * Insert a styled string (char/style pairs) with a length.
+ */
+bool Document::InsertStyledString(int position, char *s, int insertLength) {
+ CheckReadOnly();
+ if (enteredCount != 0) {
+ return false;
+ } else {
+ enteredCount++;
+ if (!cb.IsReadOnly()) {
+ NotifyModified(
+ DocModification(
+ SC_MOD_BEFOREINSERT | SC_PERFORMED_USER,
+ position / 2, insertLength / 2,
+ 0, s));
+ int prevLinesTotal = LinesTotal();
+ bool startSavePoint = cb.IsSavePoint();
+ const char *text = cb.InsertString(position, s, insertLength);
+ if (startSavePoint && cb.IsCollectingUndo())
+ NotifySavePoint(!startSavePoint);
+ ModifiedAt(position / 2);
+ NotifyModified(
+ DocModification(
+ SC_MOD_INSERTTEXT | SC_PERFORMED_USER,
+ position / 2, insertLength / 2,
+ LinesTotal() - prevLinesTotal, text));
+ }
+ enteredCount--;
+ }
+ return !cb.IsReadOnly();
+}
+
+int Document::Undo() {
+ int newPos = -1;
+ CheckReadOnly();
+ if (enteredCount == 0) {
+ enteredCount++;
+ if (!cb.IsReadOnly()) {
+ bool startSavePoint = cb.IsSavePoint();
+ bool multiLine = false;
+ int steps = cb.StartUndo();
+ //Platform::DebugPrintf("Steps=%d\n", steps);
+ for (int step = 0; step < steps; step++) {
+ const int prevLinesTotal = LinesTotal();
+ const Action &action = cb.GetUndoStep();
+ if (action.at == removeAction) {
+ NotifyModified(DocModification(
+ SC_MOD_BEFOREINSERT | SC_PERFORMED_UNDO, action));
+ } else {
+ NotifyModified(DocModification(
+ SC_MOD_BEFOREDELETE | SC_PERFORMED_UNDO, action));
+ }
+ cb.PerformUndoStep();
+ int cellPosition = action.position;
+ ModifiedAt(cellPosition);
+ newPos = cellPosition;
+
+ int modFlags = SC_PERFORMED_UNDO;
+ // With undo, an insertion action becomes a deletion notification
+ if (action.at == removeAction) {
+ newPos += action.lenData;
+ modFlags |= SC_MOD_INSERTTEXT;
+ } else {
+ modFlags |= SC_MOD_DELETETEXT;
+ }
+ if (steps > 1)
+ modFlags |= SC_MULTISTEPUNDOREDO;
+ const int linesAdded = LinesTotal() - prevLinesTotal;
+ if (linesAdded != 0)
+ multiLine = true;
+ if (step == steps - 1) {
+ modFlags |= SC_LASTSTEPINUNDOREDO;
+ if (multiLine)
+ modFlags |= SC_MULTILINEUNDOREDO;
+ }
+ NotifyModified(DocModification(modFlags, cellPosition, action.lenData,
+ linesAdded, action.data));
+ }
+
+ bool endSavePoint = cb.IsSavePoint();
+ if (startSavePoint != endSavePoint)
+ NotifySavePoint(endSavePoint);
+ }
+ enteredCount--;
+ }
+ return newPos;
+}
+
+int Document::Redo() {
+ int newPos = -1;
+ CheckReadOnly();
+ if (enteredCount == 0) {
+ enteredCount++;
+ if (!cb.IsReadOnly()) {
+ bool startSavePoint = cb.IsSavePoint();
+ bool multiLine = false;
+ int steps = cb.StartRedo();
+ for (int step = 0; step < steps; step++) {
+ const int prevLinesTotal = LinesTotal();
+ const Action &action = cb.GetRedoStep();
+ if (action.at == insertAction) {
+ NotifyModified(DocModification(
+ SC_MOD_BEFOREINSERT | SC_PERFORMED_REDO, action));
+ } else {
+ NotifyModified(DocModification(
+ SC_MOD_BEFOREDELETE | SC_PERFORMED_REDO, action));
+ }
+ cb.PerformRedoStep();
+ ModifiedAt(action.position);
+ newPos = action.position;
+
+ int modFlags = SC_PERFORMED_REDO;
+ if (action.at == insertAction) {
+ newPos += action.lenData;
+ modFlags |= SC_MOD_INSERTTEXT;
+ } else {
+ modFlags |= SC_MOD_DELETETEXT;
+ }
+ if (steps > 1)
+ modFlags |= SC_MULTISTEPUNDOREDO;
+ const int linesAdded = LinesTotal() - prevLinesTotal;
+ if (linesAdded != 0)
+ multiLine = true;
+ if (step == steps - 1) {
+ modFlags |= SC_LASTSTEPINUNDOREDO;
+ if (multiLine)
+ modFlags |= SC_MULTILINEUNDOREDO;
+ }
+ NotifyModified(
+ DocModification(modFlags, action.position, action.lenData,
+ linesAdded, action.data));
+ }
+
+ bool endSavePoint = cb.IsSavePoint();
+ if (startSavePoint != endSavePoint)
+ NotifySavePoint(endSavePoint);
+ }
+ enteredCount--;
+ }
+ return newPos;
+}
+
+/**
+ * Insert a single character.
+ */
+bool Document::InsertChar(int pos, char ch) {
+ char chs[2];
+ chs[0] = ch;
+ chs[1] = 0;
+ return InsertStyledString(pos*2, chs, 2);
+}
+
+/**
+ * Insert a null terminated string.
+ */
+bool Document::InsertString(int position, const char *s) {
+ return InsertString(position, s, strlen(s));
+}
+
+/**
+ * Insert a string with a length.
+ */
+bool Document::InsertString(int position, const char *s, size_t insertLength) {
+ bool changed = false;
+ if (insertLength > 0) {
+ char *sWithStyle = new char[insertLength * 2];
+ if (sWithStyle) {
+ for (size_t i = 0; i < insertLength; i++) {
+ sWithStyle[i*2] = s[i];
+ sWithStyle[i*2 + 1] = 0;
+ }
+ changed = InsertStyledString(position*2, sWithStyle,
+ static_cast<int>(insertLength*2));
+ delete []sWithStyle;
+ }
+ }
+ return changed;
+}
+
+void Document::ChangeChar(int pos, char ch) {
+ DeleteChars(pos, 1);
+ InsertChar(pos, ch);
+}
+
+void Document::DelChar(int pos) {
+ DeleteChars(pos, LenChar(pos));
+}
+
+void Document::DelCharBack(int pos) {
+ if (pos <= 0) {
+ return;
+ } else if (IsCrLf(pos - 2)) {
+ DeleteChars(pos - 2, 2);
+ } else if (dbcsCodePage) {
+ int startChar = MovePositionOutsideChar(pos - 1, -1, false);
+ DeleteChars(startChar, pos - startChar);
+ } else {
+ DeleteChars(pos - 1, 1);
+ }
+}
+
+static bool isindentchar(char ch) {
+ return (ch == ' ') || (ch == '\t');
+}
+
+static int NextTab(int pos, int tabSize) {
+ return ((pos / tabSize) + 1) * tabSize;
+}
+
+static void CreateIndentation(char *linebuf, int length, int indent, int tabSize, bool insertSpaces) {
+ length--; // ensure space for \0
+ if (!insertSpaces) {
+ while ((indent >= tabSize) && (length > 0)) {
+ *linebuf++ = '\t';
+ indent -= tabSize;
+ length--;
+ }
+ }
+ while ((indent > 0) && (length > 0)) {
+ *linebuf++ = ' ';
+ indent--;
+ length--;
+ }
+ *linebuf = '\0';
+}
+
+int Document::GetLineIndentation(int line) {
+ int indent = 0;
+ if ((line >= 0) && (line < LinesTotal())) {
+ int lineStart = LineStart(line);
+ int length = Length();
+ for (int i = lineStart;i < length;i++) {
+ char ch = cb.CharAt(i);
+ if (ch == ' ')
+ indent++;
+ else if (ch == '\t')
+ indent = NextTab(indent, tabInChars);
+ else
+ return indent;
+ }
+ }
+ return indent;
+}
+
+void Document::SetLineIndentation(int line, int indent) {
+ int indentOfLine = GetLineIndentation(line);
+ if (indent < 0)
+ indent = 0;
+ if (indent != indentOfLine) {
+ char linebuf[1000];
+ CreateIndentation(linebuf, sizeof(linebuf), indent, tabInChars, !useTabs);
+ int thisLineStart = LineStart(line);
+ int indentPos = GetLineIndentPosition(line);
+ BeginUndoAction();
+ DeleteChars(thisLineStart, indentPos - thisLineStart);
+ InsertString(thisLineStart, linebuf);
+ EndUndoAction();
+ }
+}
+
+int Document::GetLineIndentPosition(int line) {
+ if (line < 0)
+ return 0;
+ int pos = LineStart(line);
+ int length = Length();
+ while ((pos < length) && isindentchar(cb.CharAt(pos))) {
+ pos++;
+ }
+ return pos;
+}
+
+int Document::GetColumn(int pos) {
+ int column = 0;
+ int line = LineFromPosition(pos);
+ if ((line >= 0) && (line < LinesTotal())) {
+ for (int i = LineStart(line);i < pos;) {
+ char ch = cb.CharAt(i);
+ if (ch == '\t') {
+ column = NextTab(column, tabInChars);
+ i++;
+ } else if (ch == '\r') {
+ return column;
+ } else if (ch == '\n') {
+ return column;
+ } else {
+ column++;
+ i = MovePositionOutsideChar(i + 1, 1);
+ }
+ }
+ }
+ return column;
+}
+
+int Document::FindColumn(int line, int column) {
+ int position = LineStart(line);
+ int columnCurrent = 0;
+ if ((line >= 0) && (line < LinesTotal())) {
+ while ((columnCurrent < column) && (position < Length())) {
+ char ch = cb.CharAt(position);
+ if (ch == '\t') {
+ columnCurrent = NextTab(columnCurrent, tabInChars);
+ position++;
+ } else if (ch == '\r') {
+ return position;
+ } else if (ch == '\n') {
+ return position;
+ } else {
+ columnCurrent++;
+ position = MovePositionOutsideChar(position + 1, 1);
+ }
+ }
+ }
+ return position;
+}
+
+void Document::Indent(bool forwards, int lineBottom, int lineTop) {
+ // Dedent - suck white space off the front of the line to dedent by equivalent of a tab
+ for (int line = lineBottom; line >= lineTop; line--) {
+ int indentOfLine = GetLineIndentation(line);
+ if (forwards) {
+ if (LineStart(line) < LineEnd(line)) {
+ SetLineIndentation(line, indentOfLine + IndentSize());
+ }
+ } else {
+ SetLineIndentation(line, indentOfLine - IndentSize());
+ }
+ }
+}
+
+// Convert line endings for a piece of text to a particular mode.
+// Stop at len or when a NUL is found.
+// Caller must delete the returned pointer.
+char *Document::TransformLineEnds(int *pLenOut, const char *s, size_t len, int eolMode) {
+ char *dest = new char[2 * len + 1];
+ const char *sptr = s;
+ char *dptr = dest;
+ for (size_t i = 0; (i < len) && (*sptr != '\0'); i++) {
+ if (*sptr == '\n' || *sptr == '\r') {
+ if (eolMode == SC_EOL_CR) {
+ *dptr++ = '\r';
+ } else if (eolMode == SC_EOL_LF) {
+ *dptr++ = '\n';
+ } else { // eolMode == SC_EOL_CRLF
+ *dptr++ = '\r';
+ *dptr++ = '\n';
+ }
+ if ((*sptr == '\r') && (i+1 < len) && (*(sptr+1) == '\n')) {
+ i++;
+ sptr++;
+ }
+ sptr++;
+ } else {
+ *dptr++ = *sptr++;
+ }
+ }
+ *dptr++ = '\0';
+ *pLenOut = (dptr - dest) - 1;
+ return dest;
+}
+
+void Document::ConvertLineEnds(int eolModeSet) {
+ BeginUndoAction();
+
+ for (int pos = 0; pos < Length(); pos++) {
+ if (cb.CharAt(pos) == '\r') {
+ if (cb.CharAt(pos + 1) == '\n') {
+ // CRLF
+ if (eolModeSet == SC_EOL_CR) {
+ DeleteChars(pos + 1, 1); // Delete the LF
+ } else if (eolModeSet == SC_EOL_LF) {
+ DeleteChars(pos, 1); // Delete the CR
+ } else {
+ pos++;
+ }
+ } else {
+ // CR
+ if (eolModeSet == SC_EOL_CRLF) {
+ InsertString(pos + 1, "\n", 1); // Insert LF
+ pos++;
+ } else if (eolModeSet == SC_EOL_LF) {
+ InsertString(pos, "\n", 1); // Insert LF
+ DeleteChars(pos + 1, 1); // Delete CR
+ }
+ }
+ } else if (cb.CharAt(pos) == '\n') {
+ // LF
+ if (eolModeSet == SC_EOL_CRLF) {
+ InsertString(pos, "\r", 1); // Insert CR
+ pos++;
+ } else if (eolModeSet == SC_EOL_CR) {
+ InsertString(pos, "\r", 1); // Insert CR
+ DeleteChars(pos + 1, 1); // Delete LF
+ }
+ }
+ }
+
+ EndUndoAction();
+}
+
+bool Document::IsWhiteLine(int line) {
+ int currentChar = LineStart(line);
+ int endLine = LineEnd(line);
+ while (currentChar < endLine) {
+ if (cb.CharAt(currentChar) != ' ' && cb.CharAt(currentChar) != '\t') {
+ return false;
+ }
+ ++currentChar;
+ }
+ return true;
+}
+
+int Document::ParaUp(int pos) {
+ int line = LineFromPosition(pos);
+ line--;
+ while (line >= 0 && IsWhiteLine(line)) { // skip empty lines
+ line--;
+ }
+ while (line >= 0 && !IsWhiteLine(line)) { // skip non-empty lines
+ line--;
+ }
+ line++;
+ return LineStart(line);
+}
+
+int Document::ParaDown(int pos) {
+ int line = LineFromPosition(pos);
+ while (line < LinesTotal() && !IsWhiteLine(line)) { // skip non-empty lines
+ line++;
+ }
+ while (line < LinesTotal() && IsWhiteLine(line)) { // skip empty lines
+ line++;
+ }
+ if (line < LinesTotal())
+ return LineStart(line);
+ else // end of a document
+ return LineEnd(line-1);
+}
+
+CharClassify::cc Document::WordCharClass(unsigned char ch) {
+ if ((SC_CP_UTF8 == dbcsCodePage) && (ch >= 0x80))
+ return CharClassify::ccWord;
+ return charClass.GetClass(ch);
+}
+
+/**
+ * Used by commmands that want to select whole words.
+ * Finds the start of word at pos when delta < 0 or the end of the word when delta >= 0.
+ */
+int Document::ExtendWordSelect(int pos, int delta, bool onlyWordCharacters) {
+ CharClassify::cc ccStart = CharClassify::ccWord;
+ if (delta < 0) {
+ if (!onlyWordCharacters)
+ ccStart = WordCharClass(cb.CharAt(pos-1));
+ while (pos > 0 && (WordCharClass(cb.CharAt(pos - 1)) == ccStart))
+ pos--;
+ } else {
+ if (!onlyWordCharacters)
+ ccStart = WordCharClass(cb.CharAt(pos));
+ while (pos < (Length()) && (WordCharClass(cb.CharAt(pos)) == ccStart))
+ pos++;
+ }
+ return MovePositionOutsideChar(pos, delta);
+}
+
+/**
+ * Find the start of the next word in either a forward (delta >= 0) or backwards direction
+ * (delta < 0).
+ * This is looking for a transition between character classes although there is also some
+ * additional movement to transit white space.
+ * Used by cursor movement by word commands.
+ */
+int Document::NextWordStart(int pos, int delta) {
+ if (delta < 0) {
+ while (pos > 0 && (WordCharClass(cb.CharAt(pos - 1)) == CharClassify::ccSpace))
+ pos--;
+ if (pos > 0) {
+ CharClassify::cc ccStart = WordCharClass(cb.CharAt(pos-1));
+ while (pos > 0 && (WordCharClass(cb.CharAt(pos - 1)) == ccStart)) {
+ pos--;
+ }
+ }
+ } else {
+ CharClassify::cc ccStart = WordCharClass(cb.CharAt(pos));
+ while (pos < (Length()) && (WordCharClass(cb.CharAt(pos)) == ccStart))
+ pos++;
+ while (pos < (Length()) && (WordCharClass(cb.CharAt(pos)) == CharClassify::ccSpace))
+ pos++;
+ }
+ return pos;
+}
+
+/**
+ * Find the end of the next word in either a forward (delta >= 0) or backwards direction
+ * (delta < 0).
+ * This is looking for a transition between character classes although there is also some
+ * additional movement to transit white space.
+ * Used by cursor movement by word commands.
+ */
+int Document::NextWordEnd(int pos, int delta) {
+ if (delta < 0) {
+ if (pos > 0) {
+ CharClassify::cc ccStart = WordCharClass(cb.CharAt(pos-1));
+ if (ccStart != CharClassify::ccSpace) {
+ while (pos > 0 && WordCharClass(cb.CharAt(pos - 1)) == ccStart) {
+ pos--;
+ }
+ }
+ while (pos > 0 && WordCharClass(cb.CharAt(pos - 1)) == CharClassify::ccSpace) {
+ pos--;
+ }
+ }
+ } else {
+ while (pos < Length() && WordCharClass(cb.CharAt(pos)) == CharClassify::ccSpace) {
+ pos++;
+ }
+ if (pos < Length()) {
+ CharClassify::cc ccStart = WordCharClass(cb.CharAt(pos));
+ while (pos < Length() && WordCharClass(cb.CharAt(pos)) == ccStart) {
+ pos++;
+ }
+ }
+ }
+ return pos;
+}
+
+/**
+ * Check that the character at the given position is a word or punctuation character and that
+ * the previous character is of a different character class.
+ */
+bool Document::IsWordStartAt(int pos) {
+ if (pos > 0) {
+ CharClassify::cc ccPos = WordCharClass(CharAt(pos));
+ return (ccPos == CharClassify::ccWord || ccPos == CharClassify::ccPunctuation) &&
+ (ccPos != WordCharClass(CharAt(pos - 1)));
+ }
+ return true;
+}
+
+/**
+ * Check that the character at the given position is a word or punctuation character and that
+ * the next character is of a different character class.
+ */
+bool Document::IsWordEndAt(int pos) {
+ if (pos < Length()) {
+ CharClassify::cc ccPrev = WordCharClass(CharAt(pos-1));
+ return (ccPrev == CharClassify::ccWord || ccPrev == CharClassify::ccPunctuation) &&
+ (ccPrev != WordCharClass(CharAt(pos)));
+ }
+ return true;
+}
+
+/**
+ * Check that the given range is has transitions between character classes at both
+ * ends and where the characters on the inside are word or punctuation characters.
+ */
+bool Document::IsWordAt(int start, int end) {
+ return IsWordStartAt(start) && IsWordEndAt(end);
+}
+
+// The comparison and case changing functions here assume ASCII
+// or extended ASCII such as the normal Windows code page.
+
+static inline char MakeUpperCase(char ch) {
+ if (ch < 'a' || ch > 'z')
+ return ch;
+ else
+ return static_cast<char>(ch - 'a' + 'A');
+}
+
+static inline char MakeLowerCase(char ch) {
+ if (ch < 'A' || ch > 'Z')
+ return ch;
+ else
+ return static_cast<char>(ch - 'A' + 'a');
+}
+
+// Define a way for the Regular Expression code to access the document
+class DocumentIndexer : public CharacterIndexer {
+ Document *pdoc;
+ int end;
+public:
+ DocumentIndexer(Document *pdoc_, int end_) :
+ pdoc(pdoc_), end(end_) {
+ }
+
+ virtual ~DocumentIndexer() {
+ }
+
+ virtual char CharAt(int index) {
+ if (index < 0 || index >= end)
+ return 0;
+ else
+ return pdoc->CharAt(index);
+ }
+};
+
+/**
+ * Find text in document, supporting both forward and backward
+ * searches (just pass minPos > maxPos to do a backward search)
+ * Has not been tested with backwards DBCS searches yet.
+ */
+long Document::FindText(int minPos, int maxPos, const char *s,
+ bool caseSensitive, bool word, bool wordStart, bool regExp, bool posix,
+ int *length) {
+ if (regExp) {
+ if (!pre)
+ pre = new RESearch(&charClass);
+ if (!pre)
+ return -1;
+
+ int increment = (minPos <= maxPos) ? 1 : -1;
+
+ int startPos = minPos;
+ int endPos = maxPos;
+
+ // Range endpoints should not be inside DBCS characters, but just in case, move them.
+ startPos = MovePositionOutsideChar(startPos, 1, false);
+ endPos = MovePositionOutsideChar(endPos, 1, false);
+
+ const char *errmsg = pre->Compile(s, *length, caseSensitive, posix);
+ if (errmsg) {
+ return -1;
+ }
+ // Find a variable in a property file: \$(\([A-Za-z0-9_.]+\))
+ // Replace first '.' with '-' in each property file variable reference:
+ // Search: \$(\([A-Za-z0-9_-]+\)\.\([A-Za-z0-9_.]+\))
+ // Replace: $(\1-\2)
+ int lineRangeStart = LineFromPosition(startPos);
+ int lineRangeEnd = LineFromPosition(endPos);
+ if ((increment == 1) &&
+ (startPos >= LineEnd(lineRangeStart)) &&
+ (lineRangeStart < lineRangeEnd)) {
+ // the start position is at end of line or between line end characters.
+ lineRangeStart++;
+ startPos = LineStart(lineRangeStart);
+ }
+ int pos = -1;
+ int lenRet = 0;
+ char searchEnd = s[*length - 1];
+ int lineRangeBreak = lineRangeEnd + increment;
+ for (int line = lineRangeStart; line != lineRangeBreak; line += increment) {
+ int startOfLine = LineStart(line);
+ int endOfLine = LineEnd(line);
+ if (increment == 1) {
+ if (line == lineRangeStart) {
+ if ((startPos != startOfLine) && (s[0] == '^'))
+ continue; // Can't match start of line if start position after start of line
+ startOfLine = startPos;
+ }
+ if (line == lineRangeEnd) {
+ if ((endPos != endOfLine) && (searchEnd == '$'))
+ continue; // Can't match end of line if end position before end of line
+ endOfLine = endPos;
+ }
+ } else {
+ if (line == lineRangeEnd) {
+ if ((endPos != startOfLine) && (s[0] == '^'))
+ continue; // Can't match start of line if end position after start of line
+ startOfLine = endPos;
+ }
+ if (line == lineRangeStart) {
+ if ((startPos != endOfLine) && (searchEnd == '$'))
+ continue; // Can't match end of line if start position before end of line
+ endOfLine = startPos;
+ }
+ }
+
+ DocumentIndexer di(this, endOfLine);
+ int success = pre->Execute(di, startOfLine, endOfLine);
+ if (success) {
+ pos = pre->bopat[0];
+ lenRet = pre->eopat[0] - pre->bopat[0];
+ if (increment == -1) {
+ // Check for the last match on this line.
+ int repetitions = 1000; // Break out of infinite loop
+ while (success && (pre->eopat[0] <= endOfLine) && (repetitions--)) {
+ success = pre->Execute(di, pos+1, endOfLine);
+ if (success) {
+ if (pre->eopat[0] <= minPos) {
+ pos = pre->bopat[0];
+ lenRet = pre->eopat[0] - pre->bopat[0];
+ } else {
+ success = 0;
+ }
+ }
+ }
+ }
+ break;
+ }
+ }
+ *length = lenRet;
+ return pos;
+
+ } else {
+
+ bool forward = minPos <= maxPos;
+ int increment = forward ? 1 : -1;
+
+ // Range endpoints should not be inside DBCS characters, but just in case, move them.
+ int startPos = MovePositionOutsideChar(minPos, increment, false);
+ int endPos = MovePositionOutsideChar(maxPos, increment, false);
+
+ // Compute actual search ranges needed
+ int lengthFind = *length;
+ if (lengthFind == -1)
+ lengthFind = static_cast<int>(strlen(s));
+ int endSearch = endPos;
+ if (startPos <= endPos) {
+ endSearch = endPos - lengthFind + 1;
+ }
+ //Platform::DebugPrintf("Find %d %d %s %d\n", startPos, endPos, ft->lpstrText, lengthFind);
+ char firstChar = s[0];
+ if (!caseSensitive)
+ firstChar = static_cast<char>(MakeUpperCase(firstChar));
+ int pos = forward ? startPos : (startPos - 1);
+ while (forward ? (pos < endSearch) : (pos >= endSearch)) {
+ char ch = CharAt(pos);
+ if (caseSensitive) {
+ if (ch == firstChar) {
+ bool found = true;
+ if (pos + lengthFind > Platform::Maximum(startPos, endPos)) found = false;
+ for (int posMatch = 1; posMatch < lengthFind && found; posMatch++) {
+ ch = CharAt(pos + posMatch);
+ if (ch != s[posMatch])
+ found = false;
+ }
+ if (found) {
+ if ((!word && !wordStart) ||
+ word && IsWordAt(pos, pos + lengthFind) ||
+ wordStart && IsWordStartAt(pos))
+ return pos;
+ }
+ }
+ } else {
+ if (MakeUpperCase(ch) == firstChar) {
+ bool found = true;
+ if (pos + lengthFind > Platform::Maximum(startPos, endPos)) found = false;
+ for (int posMatch = 1; posMatch < lengthFind && found; posMatch++) {
+ ch = CharAt(pos + posMatch);
+ if (MakeUpperCase(ch) != MakeUpperCase(s[posMatch]))
+ found = false;
+ }
+ if (found) {
+ if ((!word && !wordStart) ||
+ word && IsWordAt(pos, pos + lengthFind) ||
+ wordStart && IsWordStartAt(pos))
+ return pos;
+ }
+ }
+ }
+ pos += increment;
+ if (dbcsCodePage && (pos >= 0)) {
+ // Ensure trying to match from start of character
+ pos = MovePositionOutsideChar(pos, increment, false);
+ }
+ }
+ }
+ //Platform::DebugPrintf("Not found\n");
+ return -1;
+}
+
+const char *Document::SubstituteByPosition(const char *text, int *length) {
+ if (!pre)
+ return 0;
+ delete []substituted;
+ substituted = 0;
+ DocumentIndexer di(this, Length());
+ if (!pre->GrabMatches(di))
+ return 0;
+ unsigned int lenResult = 0;
+ for (int i = 0; i < *length; i++) {
+ if (text[i] == '\\') {
+ if (text[i + 1] >= '1' && text[i + 1] <= '9') {
+ unsigned int patNum = text[i + 1] - '0';
+ lenResult += pre->eopat[patNum] - pre->bopat[patNum];
+ i++;
+ } else {
+ switch (text[i + 1]) {
+ case 'a':
+ case 'b':
+ case 'f':
+ case 'n':
+ case 'r':
+ case 't':
+ case 'v':
+ i++;
+ }
+ lenResult++;
+ }
+ } else {
+ lenResult++;
+ }
+ }
+ substituted = new char[lenResult + 1];
+ if (!substituted)
+ return 0;
+ char *o = substituted;
+ for (int j = 0; j < *length; j++) {
+ if (text[j] == '\\') {
+ if (text[j + 1] >= '1' && text[j + 1] <= '9') {
+ unsigned int patNum = text[j + 1] - '0';
+ unsigned int len = pre->eopat[patNum] - pre->bopat[patNum];
+ if (pre->pat[patNum]) // Will be null if try for a match that did not occur
+ memcpy(o, pre->pat[patNum], len);
+ o += len;
+ j++;
+ } else {
+ j++;
+ switch (text[j]) {
+ case 'a':
+ *o++ = '\a';
+ break;
+ case 'b':
+ *o++ = '\b';
+ break;
+ case 'f':
+ *o++ = '\f';
+ break;
+ case 'n':
+ *o++ = '\n';
+ break;
+ case 'r':
+ *o++ = '\r';
+ break;
+ case 't':
+ *o++ = '\t';
+ break;
+ case 'v':
+ *o++ = '\v';
+ break;
+ default:
+ *o++ = '\\';
+ j--;
+ }
+ }
+ } else {
+ *o++ = text[j];
+ }
+ }
+ *o = '\0';
+ *length = lenResult;
+ return substituted;
+}
+
+int Document::LinesTotal() {
+ return cb.Lines();
+}
+
+void Document::ChangeCase(Range r, bool makeUpperCase) {
+ for (int pos = r.start; pos < r.end;) {
+ int len = LenChar(pos);
+ if (len == 1) {
+ char ch = CharAt(pos);
+ if (makeUpperCase) {
+ if (IsLowerCase(ch)) {
+ ChangeChar(pos, static_cast<char>(MakeUpperCase(ch)));
+ }
+ } else {
+ if (IsUpperCase(ch)) {
+ ChangeChar(pos, static_cast<char>(MakeLowerCase(ch)));
+ }
+ }
+ }
+ pos += len;
+ }
+}
+
+void Document::SetDefaultCharClasses(bool includeWordClass) {
+ charClass.SetDefaultCharClasses(includeWordClass);
+}
+
+void Document::SetCharClasses(const unsigned char *chars, CharClassify::cc newCharClass) {
+ charClass.SetCharClasses(chars, newCharClass);
+}
+
+void Document::SetStylingBits(int bits) {
+ stylingBits = bits;
+ stylingBitsMask = 0;
+ for (int bit = 0; bit < stylingBits; bit++) {
+ stylingBitsMask <<= 1;
+ stylingBitsMask |= 1;
+ }
+}
+
+void Document::StartStyling(int position, char mask) {
+ stylingMask = mask;
+ endStyled = position;
+}
+
+bool Document::SetStyleFor(int length, char style) {
+ if (enteredCount != 0) {
+ return false;
+ } else {
+ enteredCount++;
+ style &= stylingMask;
+ int prevEndStyled = endStyled;
+ if (cb.SetStyleFor(endStyled, length, style, stylingMask)) {
+ DocModification mh(SC_MOD_CHANGESTYLE | SC_PERFORMED_USER,
+ prevEndStyled, length);
+ NotifyModified(mh);
+ }
+ endStyled += length;
+ enteredCount--;
+ return true;
+ }
+}
+
+bool Document::SetStyles(int length, char *styles) {
+ if (enteredCount != 0) {
+ return false;
+ } else {
+ enteredCount++;
+ bool didChange = false;
+ int startMod = 0;
+ int endMod = 0;
+ for (int iPos = 0; iPos < length; iPos++, endStyled++) {
+ PLATFORM_ASSERT(endStyled < Length());
+ if (cb.SetStyleAt(endStyled, styles[iPos], stylingMask)) {
+ if (!didChange) {
+ startMod = endStyled;
+ }
+ didChange = true;
+ endMod = endStyled;
+ }
+ }
+ if (didChange) {
+ DocModification mh(SC_MOD_CHANGESTYLE | SC_PERFORMED_USER,
+ startMod, endMod - startMod + 1);
+ NotifyModified(mh);
+ }
+ enteredCount--;
+ return true;
+ }
+}
+
+bool Document::EnsureStyledTo(int pos) {
+ if (pos > GetEndStyled()) {
+ IncrementStyleClock();
+ // Ask the watchers to style, and stop as soon as one responds.
+ for (int i = 0; pos > GetEndStyled() && i < lenWatchers; i++) {
+ watchers[i].watcher->NotifyStyleNeeded(this, watchers[i].userData, pos);
+ }
+ }
+ return pos <= GetEndStyled();
+}
+
+void Document::IncrementStyleClock() {
+ styleClock++;
+ if (styleClock > 0x100000) {
+ styleClock = 0;
+ }
+}
+
+bool Document::AddWatcher(DocWatcher *watcher, void *userData) {
+ for (int i = 0; i < lenWatchers; i++) {
+ if ((watchers[i].watcher == watcher) &&
+ (watchers[i].userData == userData))
+ return false;
+ }
+ WatcherWithUserData *pwNew = new WatcherWithUserData[lenWatchers + 1];
+ if (!pwNew)
+ return false;
+ for (int j = 0; j < lenWatchers; j++)
+ pwNew[j] = watchers[j];
+ pwNew[lenWatchers].watcher = watcher;
+ pwNew[lenWatchers].userData = userData;
+ delete []watchers;
+ watchers = pwNew;
+ lenWatchers++;
+ return true;
+}
+
+bool Document::RemoveWatcher(DocWatcher *watcher, void *userData) {
+ for (int i = 0; i < lenWatchers; i++) {
+ if ((watchers[i].watcher == watcher) &&
+ (watchers[i].userData == userData)) {
+ if (lenWatchers == 1) {
+ delete []watchers;
+ watchers = 0;
+ lenWatchers = 0;
+ } else {
+ WatcherWithUserData *pwNew = new WatcherWithUserData[lenWatchers];
+ if (!pwNew)
+ return false;
+ for (int j = 0; j < lenWatchers - 1; j++) {
+ pwNew[j] = (j < i) ? watchers[j] : watchers[j + 1];
+ }
+ delete []watchers;
+ watchers = pwNew;
+ lenWatchers--;
+ }
+ return true;
+ }
+ }
+ return false;
+}
+
+void Document::NotifyModifyAttempt() {
+ for (int i = 0; i < lenWatchers; i++) {
+ watchers[i].watcher->NotifyModifyAttempt(this, watchers[i].userData);
+ }
+}
+
+void Document::NotifySavePoint(bool atSavePoint) {
+ for (int i = 0; i < lenWatchers; i++) {
+ watchers[i].watcher->NotifySavePoint(this, watchers[i].userData, atSavePoint);
+ }
+}
+
+void Document::NotifyModified(DocModification mh) {
+ for (int i = 0; i < lenWatchers; i++) {
+ watchers[i].watcher->NotifyModified(this, mh, watchers[i].userData);
+ }
+}
+
+bool Document::IsWordPartSeparator(char ch) {
+ return (WordCharClass(ch) == CharClassify::ccWord) && IsPunctuation(ch);
+}
+
+int Document::WordPartLeft(int pos) {
+ if (pos > 0) {
+ --pos;
+ char startChar = cb.CharAt(pos);
+ if (IsWordPartSeparator(startChar)) {
+ while (pos > 0 && IsWordPartSeparator(cb.CharAt(pos))) {
+ --pos;
+ }
+ }
+ if (pos > 0) {
+ startChar = cb.CharAt(pos);
+ --pos;
+ if (IsLowerCase(startChar)) {
+ while (pos > 0 && IsLowerCase(cb.CharAt(pos)))
+ --pos;
+ if (!IsUpperCase(cb.CharAt(pos)) && !IsLowerCase(cb.CharAt(pos)))
+ ++pos;
+ } else if (IsUpperCase(startChar)) {
+ while (pos > 0 && IsUpperCase(cb.CharAt(pos)))
+ --pos;
+ if (!IsUpperCase(cb.CharAt(pos)))
+ ++pos;
+ } else if (IsADigit(startChar)) {
+ while (pos > 0 && IsADigit(cb.CharAt(pos)))
+ --pos;
+ if (!IsADigit(cb.CharAt(pos)))
+ ++pos;
+ } else if (IsPunctuation(startChar)) {
+ while (pos > 0 && IsPunctuation(cb.CharAt(pos)))
+ --pos;
+ if (!IsPunctuation(cb.CharAt(pos)))
+ ++pos;
+ } else if (isspacechar(startChar)) {
+ while (pos > 0 && isspacechar(cb.CharAt(pos)))
+ --pos;
+ if (!isspacechar(cb.CharAt(pos)))
+ ++pos;
+ } else if (!isascii(startChar)) {
+ while (pos > 0 && !isascii(cb.CharAt(pos)))
+ --pos;
+ if (isascii(cb.CharAt(pos)))
+ ++pos;
+ } else {
+ ++pos;
+ }
+ }
+ }
+ return pos;
+}
+
+int Document::WordPartRight(int pos) {
+ char startChar = cb.CharAt(pos);
+ int length = Length();
+ if (IsWordPartSeparator(startChar)) {
+ while (pos < length && IsWordPartSeparator(cb.CharAt(pos)))
+ ++pos;
+ startChar = cb.CharAt(pos);
+ }
+ if (!isascii(startChar)) {
+ while (pos < length && !isascii(cb.CharAt(pos)))
+ ++pos;
+ } else if (IsLowerCase(startChar)) {
+ while (pos < length && IsLowerCase(cb.CharAt(pos)))
+ ++pos;
+ } else if (IsUpperCase(startChar)) {
+ if (IsLowerCase(cb.CharAt(pos + 1))) {
+ ++pos;
+ while (pos < length && IsLowerCase(cb.CharAt(pos)))
+ ++pos;
+ } else {
+ while (pos < length && IsUpperCase(cb.CharAt(pos)))
+ ++pos;
+ }
+ if (IsLowerCase(cb.CharAt(pos)) && IsUpperCase(cb.CharAt(pos - 1)))
+ --pos;
+ } else if (IsADigit(startChar)) {
+ while (pos < length && IsADigit(cb.CharAt(pos)))
+ ++pos;
+ } else if (IsPunctuation(startChar)) {
+ while (pos < length && IsPunctuation(cb.CharAt(pos)))
+ ++pos;
+ } else if (isspacechar(startChar)) {
+ while (pos < length && isspacechar(cb.CharAt(pos)))
+ ++pos;
+ } else {
+ ++pos;
+ }
+ return pos;
+}
+
+bool IsLineEndChar(char c) {
+ return (c == '\n' || c == '\r');
+}
+
+int Document::ExtendStyleRange(int pos, int delta, bool singleLine) {
+ int sStart = cb.StyleAt(pos);
+ if (delta < 0) {
+ while (pos > 0 && (cb.StyleAt(pos) == sStart) && (!singleLine || !IsLineEndChar(cb.CharAt(pos))) )
+ pos--;
+ pos++;
+ } else {
+ while (pos < (Length()) && (cb.StyleAt(pos) == sStart) && (!singleLine || !IsLineEndChar(cb.CharAt(pos))) )
+ pos++;
+ }
+ return pos;
+}
+
+static char BraceOpposite(char ch) {
+ switch (ch) {
+ case '(':
+ return ')';
+ case ')':
+ return '(';
+ case '[':
+ return ']';
+ case ']':
+ return '[';
+ case '{':
+ return '}';
+ case '}':
+ return '{';
+ case '<':
+ return '>';
+ case '>':
+ return '<';
+ default:
+ return '\0';
+ }
+}
+
+// TODO: should be able to extend styled region to find matching brace
+int Document::BraceMatch(int position, int /*maxReStyle*/) {
+ char chBrace = CharAt(position);
+ char chSeek = BraceOpposite(chBrace);
+ if (chSeek == '\0')
+ return - 1;
+ char styBrace = static_cast<char>(StyleAt(position) & stylingBitsMask);
+ int direction = -1;
+ if (chBrace == '(' || chBrace == '[' || chBrace == '{' || chBrace == '<')
+ direction = 1;
+ int depth = 1;
+ position = position + direction;
+ while ((position >= 0) && (position < Length())) {
+ position = MovePositionOutsideChar(position, direction);
+ char chAtPos = CharAt(position);
+ char styAtPos = static_cast<char>(StyleAt(position) & stylingBitsMask);
+ if ((position > GetEndStyled()) || (styAtPos == styBrace)) {
+ if (chAtPos == chBrace)
+ depth++;
+ if (chAtPos == chSeek)
+ depth--;
+ if (depth == 0)
+ return position;
+ }
+ position = position + direction;
+ }
+ return - 1;
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-22 20:07:17 +0000