Bug #3283519. CountCharacters added to count the number of

characters between two positions. From Andrey Moskalyov.

3 files changed, 18 insertions, 0 deletions

diff --git a/src/Document.cxx b/src/Document.cxx
index 86d5c6077..c721c88ff 100644
--- a/src/Document.cxx
+++ b/src/Document.cxx
@@ -1094,6 +1094,20 @@ int Document::GetColumn(int pos) {
 	return column;
 }
 
+int Document::CountCharacters(int startPos, int endPos) {
+	startPos = MovePositionOutsideChar(startPos, 1, false);
+	endPos = MovePositionOutsideChar(endPos, -1, false);
+	int count = 0;
+	int i = startPos;
+	while (i < endPos) {
+		count++;
+		if (IsCrLf(i))
+			i++;
+		i = NextPosition(i, 1);
+	}
+	return count;
+}
+
 int Document::FindColumn(int line, int column) {
 	int position = LineStart(line);
 	if ((line >= 0) && (line < LinesTotal())) {
diff --git a/src/Document.h b/src/Document.h
index bd8a58274..ec41603eb 100644
--- a/src/Document.h
+++ b/src/Document.h
@@ -303,6 +303,7 @@ public:
 	void SetLineIndentation(int line, int indent);
 	int GetLineIndentPosition(int line) const;
 	int GetColumn(int position);
+	int CountCharacters(int startPos, int endPos);
 	int FindColumn(int line, int column);
 	void Indent(bool forwards, int lineBottom, int lineTop);
 	static char *TransformLineEnds(int *pLenOut, const char *s, size_t len, int eolModeWanted);
diff --git a/src/Editor.cxx b/src/Editor.cxx
index 4c647b61e..8c939fdb1 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -9259,6 +9259,9 @@ sptr_t Editor::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
 	case SCI_GETTECHNOLOGY:
 		return technology;
 
+	case SCI_COUNTCHARACTERS:
+		return pdoc->CountCharacters(wParam, lParam);
+
 	default:
 		return DefWndProc(iMessage, wParam, lParam);
 	}