public static ViMotionResult Right (ViMotionContext context)
{
ViMotionResult result = new ViMotionResult(context);
DocumentLine currentLine = context.Data.Document.GetLine (context.Data.Caret.Line);
if (currentLine.EndOffsetIncludingDelimiter-1 > context.Data.Caret.Offset) {
result.Column += (context.Count ?? 1);
if (result.Column > currentLine.Length)
result.Column = currentLine.Length;
result = ViEditMode.RetreatFromLineEnd (context, result);
}
return result;
}
public static void MoveToPreviousEmptyLine (ViMotionContext context)
{
if (context.Data.Caret.Line == DocumentLocation.MinLine) {
context.Data.Caret.Offset = 0;
return;
}
int line = context.Data.Caret.Line - 1;
DocumentLine currentLine = context.Data.Document.GetLine (line);
while (line > DocumentLocation.MinLine) {
line--;
DocumentLine previousLine = context.Data.Document.GetLine (line);
if (currentLine.Length != 0 && previousLine.Length == 0) {
context.Data.Caret.Offset = previousLine.Offset;
return;
}
currentLine = previousLine;
}
context.Data.Caret.Offset = currentLine.Offset;
}
public static void MoveToNextEmptyLine (ViMotionContext context)
{
if (context.Data.Caret.Line == context.Data.Document.LineCount) {
context.Data.Caret.Offset = context.Data.Document.TextLength;
return;
}
int line = context.Data.Caret.Line + 1;
DocumentLine currentLine = context.Data.Document.GetLine (line);
while (line <= context.Data.Document.LineCount) {
line++;
DocumentLine nextLine = context.Data.Document.GetLine (line);
if (currentLine.Length != 0 && nextLine.Length == 0) {
context.Data.Caret.Offset = nextLine.Offset;
return;
}
currentLine = nextLine;
}
context.Data.Caret.Offset = currentLine.Offset;
}
public static ViMotionResult Left (ViMotionContext context)
{
ViMotionResult result = new ViMotionResult(context);
result.Column -= (context.Count ?? 1);
if (result.Column < 1)
result.Column = 1;
return result;
}
public static void LineEnd (ViMotionContext context)
{
int desiredColumn = System.Math.Max (context.Data.Caret.Column, context.Data.Caret.DesiredColumn);
CaretMoveActions.LineEnd (context.Data);
ViEditMode.RetreatFromLineEnd (context.Data);
context.Data.Caret.DesiredColumn = desiredColumn;
}
public static ViMotionResult WordStart (ViMotionContext context)
{
var result = new ViMotionResult(context);
TextDocument doc = context.Data.Document;
for (int i=0; i < context.Count; i++)
{
int offset = doc.LocationToOffset(result.Line, result.Column);
offset = context.Data.FindCurrentWordStart (offset);
DocumentLocation loc = doc.OffsetToLocation(offset);
result.Line = loc.Line;
result.Column = loc.Column;
}
return result;
}
public static ViMotionResult Up (ViMotionContext context)
{
var result = new ViMotionResult(context);
var data = context.Data;
PersistColumn = System.Math.Max(PersistColumn, result.Column);
result.Line -= (context.Count ?? 1);
if (result.Line < 1)
result.Line = 1;
ViEditMode.RetreatFromLineEnd (context, result);
DocumentLine line = data.Document.GetLine (result.Line);
if ((PersistColumn != result.Column) && (PersistColumn <= line.Length))
{
result.Column = PersistColumn;
PersistColumn = 0;
}
return result;
}
public ViMotionResult(ViMotionContext context)
{
this.Line = context.Data.Caret.Line;
this.Column = context.Data.Caret.Column;
}