5 files changed, 23 insertions, 23 deletions

diff --git a/src/CellBuffer.cxx b/src/CellBuffer.cxx
index 15db9a72a..157c91bdc 100644
--- a/src/CellBuffer.cxx
+++ b/src/CellBuffer.cxx
@@ -563,7 +563,7 @@ CellBuffer::CellBuffer() {
 CellBuffer::~CellBuffer() {
 }
 
-char CellBuffer::CharAt(int position) {
+char CellBuffer::CharAt(int position) const {
 	return substance.ValueAt(position);
 }
 
@@ -653,7 +653,7 @@ const char *CellBuffer::DeleteChars(int position, int deleteLength, bool &startS
 	return data;
 }
 
-int CellBuffer::Length() {
+int CellBuffer::Length() const {
 	return substance.Length();
 }
 
@@ -662,11 +662,11 @@ void CellBuffer::Allocate(int newSize) {
 	style.ReAllocate(newSize);
 }
 
-int CellBuffer::Lines() {
+int CellBuffer::Lines() const {
 	return lv.Lines();
 }
 
-int CellBuffer::LineStart(int line) {
+int CellBuffer::LineStart(int line) const {
 	if (line < 0)
 		return 0;
 	else if (line >= Lines())
diff --git a/src/CellBuffer.h b/src/CellBuffer.h
index e790a8196..c51eab78d 100644
--- a/src/CellBuffer.h
+++ b/src/CellBuffer.h
@@ -67,11 +67,11 @@ public:
 	void InsertLine(int line, int position);
 	void SetLineStart(int line, int position);
 	void RemoveLine(int line);
-	int Lines() {
+	int Lines() const {
 		return starts.Partitions();
 	}
 	int LineFromPosition(int pos);
-	int LineStart(int line) {
+	int LineStart(int line) const {
 		return starts.PositionFromPartition(line);
 	}
 
@@ -168,14 +168,14 @@ public:
 	~CellBuffer();
 
 	/// Retrieving positions outside the range of the buffer works and returns 0
-	char CharAt(int position);
+	char CharAt(int position) const;
 	void GetCharRange(char *buffer, int position, int lengthRetrieve);
 	char StyleAt(int position);
 
-	int Length();
+	int Length() const;
 	void Allocate(int newSize);
-	int Lines();
-	int LineStart(int line);
+	int Lines() const;
+	int LineStart(int line) const;
 	int LineFromPosition(int pos) { return lv.LineFromPosition(pos); }
 	const char *InsertString(int position, const char *s, int insertLength, bool &startSequence);
 
diff --git a/src/Document.cxx b/src/Document.cxx
index 4461e0e72..686758d92 100644
--- a/src/Document.cxx
+++ b/src/Document.cxx
@@ -149,11 +149,11 @@ void Document::DeleteAllMarks(int markerNum) {
 	NotifyModified(mh);
 }
 
-int Document::LineStart(int line) {
+int Document::LineStart(int line) const {
 	return cb.LineStart(line);
 }
 
-int Document::LineEnd(int line) {
+int Document::LineEnd(int line) const {
 	if (line == LinesTotal() - 1) {
 		return LineStart(line + 1);
 	} else {
@@ -652,7 +652,7 @@ void Document::SetLineIndentation(int line, int indent) {
 	}
 }
 
-int Document::GetLineIndentPosition(int line) {
+int Document::GetLineIndentPosition(int line) const {
 	if (line < 0)
 		return 0;
 	int pos = LineStart(line);
@@ -793,7 +793,7 @@ void Document::ConvertLineEnds(int eolModeSet) {
 	EndUndoAction();
 }
 
-bool Document::IsWhiteLine(int line) {
+bool Document::IsWhiteLine(int line) const {
 	int currentChar = LineStart(line);
 	int endLine = LineEnd(line);
 	while (currentChar < endLine) {
@@ -1238,7 +1238,7 @@ const char *Document::SubstituteByPosition(const char *text, int *length) {
 	return substituted;
 }
 
-int Document::LinesTotal() {
+int Document::LinesTotal() const {
 	return cb.Lines();
 }
 
diff --git a/src/Document.h b/src/Document.h
index b9774efe0..4b13da060 100644
--- a/src/Document.h
+++ b/src/Document.h
@@ -160,7 +160,7 @@ public:
 
 	int GetLineIndentation(int line);
 	void SetLineIndentation(int line, int indent);
-	int GetLineIndentPosition(int line);
+	int GetLineIndentPosition(int line) const;
 	int GetColumn(int position);
 	int FindColumn(int line, int column);
 	void Indent(bool forwards, int lineBottom, int lineTop);
@@ -187,8 +187,8 @@ public:
 	void DeleteMarkFromHandle(int markerHandle);
 	void DeleteAllMarks(int markerNum);
 	int LineFromHandle(int markerHandle) { return cb.LineFromHandle(markerHandle); }
-	int LineStart(int line);
-	int LineEnd(int line);
+	int LineStart(int line) const;
+	int LineEnd(int line) const;
 	int LineEndPosition(int position);
 	int VCHomePosition(int position);
 
@@ -202,13 +202,13 @@ public:
 	int ExtendWordSelect(int pos, int delta, bool onlyWordCharacters=false);
 	int NextWordStart(int pos, int delta);
 	int NextWordEnd(int pos, int delta);
-	int Length() { return cb.Length(); }
+	int Length() const { return cb.Length(); }
 	void Allocate(int newSize) { cb.Allocate(newSize); }
 	long FindText(int minPos, int maxPos, const char *s,
 		bool caseSensitive, bool word, bool wordStart, bool regExp, bool posix, int *length);
 	long FindText(int iMessage, unsigned long wParam, long lParam);
 	const char *SubstituteByPosition(const char *text, int *length);
-	int LinesTotal();
+	int LinesTotal() const;
 
 	void ChangeCase(Range r, bool makeUpperCase);
 
@@ -237,7 +237,7 @@ public:
 	int WordPartLeft(int pos);
 	int WordPartRight(int pos);
 	int ExtendStyleRange(int pos, int delta, bool singleLine = false);
-	bool IsWhiteLine(int line);
+	bool IsWhiteLine(int line) const;
 	int ParaUp(int pos);
 	int ParaDown(int pos);
 	int IndentSize() { return actualIndentInChars; }
diff --git a/src/Partitioning.h b/src/Partitioning.h
index 175eba7b5..752e69614 100644
--- a/src/Partitioning.h
+++ b/src/Partitioning.h
@@ -89,7 +89,7 @@ public:
 		body = 0;
 	}
 
-	int Partitions() {
+	int Partitions() const {
 		return body->Length()-1;
 	}
 
@@ -141,7 +141,7 @@ public:
 		body->Delete(partition);
 	}
 
-	int PositionFromPartition(int partition) {
+	int PositionFromPartition(int partition) const {
 		PLATFORM_ASSERT(partition >= 0);
 		PLATFORM_ASSERT(partition < body->Length());
 		if ((partition < 0) || (partition >= body->Length())) {