Add more option support

cmd/micro/action/actions.go

@@ -471,7 +471,7 @@ func (h *BufPane) IndentSelection() bool {
 				h.Cursor.SetSelectionEnd(buffer.Loc{X: endX + indentsize + 1, Y: endY})
 			}
 		}
-		h.Cursor.Relocate()
+		h.Buf.RelocateCursors()
 
 		return true
 	}
@@ -490,7 +490,7 @@ func (h *BufPane) OutdentLine() bool {
 		}
 		h.Buf.Remove(buffer.Loc{X: 0, Y: h.Cursor.Y}, buffer.Loc{X: 1, Y: h.Cursor.Y})
 	}
-	h.Cursor.Relocate()
+	h.Buf.RelocateCursors()
 	return true
 }
 
@@ -515,7 +515,7 @@ func (h *BufPane) OutdentSelection() bool {
 				h.Buf.Remove(buffer.Loc{X: 0, Y: y}, buffer.Loc{X: 1, Y: y})
 			}
 		}
-		h.Cursor.Relocate()
+		h.Buf.RelocateCursors()
 
 		return true
 	}

cmd/micro/action/command.go

@@ -587,7 +587,7 @@ func (h *BufPane) ReplaceCmd(args []string) {
 			}
 			if !found || !inRange(locs[0]) || !inRange(locs[1]) {
 				h.Cursor.ResetSelection()
-				h.Cursor.Relocate()
+				h.Buf.RelocateCursors()
 				return
 			}
 
@@ -606,7 +606,7 @@ func (h *BufPane) ReplaceCmd(args []string) {
 					searchLoc.X += utf8.RuneCount(replace)
 				} else if canceled {
 					h.Cursor.ResetSelection()
-					h.Cursor.Relocate()
+					h.Buf.RelocateCursors()
 					return
 				}
 				if searching {
@@ -617,8 +617,7 @@ func (h *BufPane) ReplaceCmd(args []string) {
 		doReplacement()
 	}
 
-	// TODO: relocate all cursors?
-	h.Cursor.Relocate()
+	h.Buf.RelocateCursors()
 
 	if nreplaced > 1 {
 		InfoBar.Message("Replaced ", nreplaced, " occurrences of ", search)

cmd/micro/buffer/buffer.go

@@ -306,10 +306,14 @@ func (b *Buffer) ReOpen() error {
 
 	b.ModTime, err = GetModTime(b.Path)
 	b.isModified = false
+	b.RelocateCursors()
+	return err
+}
+
+func (b *Buffer) RelocateCursors() {
 	for _, c := range b.cursors {
 		c.Relocate()
 	}
-	return err
 }
 
 // RuneAt returns the rune at a given location in the buffer

cmd/micro/buffer/save.go

@@ -8,6 +8,8 @@ import (
 	"os/exec"
 	"os/signal"
 	"path/filepath"
+	"unicode"
+	"unicode/utf8"
 
 	"github.com/zyedidia/micro/cmd/micro/config"
 	. "github.com/zyedidia/micro/cmd/micro/util"
@@ -58,19 +60,17 @@ func (b *Buffer) SaveAs(filename string) error {
 		return errors.New("Cannot save scratch buffer")
 	}
 
-	// TODO: rmtrailingws and updaterules
 	b.UpdateRules()
-	// if b.Settings["rmtrailingws"].(bool) {
-	// 	for i, l := range b.lines {
-	// 		pos := len(bytes.TrimRightFunc(l.data, unicode.IsSpace))
-	//
-	// 		if pos < len(l.data) {
-	// 			b.deleteToEnd(Loc{pos, i})
-	// 		}
-	// 	}
-	//
-	// 	b.Cursor.Relocate()
-	// }
+	if b.Settings["rmtrailingws"].(bool) {
+		for i, l := range b.lines {
+			leftover := utf8.RuneCount(bytes.TrimRightFunc(l.data, unicode.IsSpace))
+
+			linelen := utf8.RuneCount(l.data)
+			b.Remove(Loc{leftover, i}, Loc{linelen, i})
+		}
+
+		b.RelocateCursors()
+	}
 
 	if b.Settings["eofnewline"].(bool) {
 		end := b.End()