Add shift-up and shift-down

For now, they are respectively bound to preview-up and preview-down
by default (TBD).

Not available on tcell build.

Close #1201

man/man1/fzf.1

@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "Dec 2017" "fzf 0.17.3" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Feb 2018" "fzf 0.17.4-devel" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -477,6 +477,8 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
     \fIend\fR
     \fIpgup\fR        (\fIpage-up\fR)
     \fIpgdn\fR        (\fIpage-down\fR)
+    \fIshift-up\fR
+    \fIshift-down\fR
     \fIshift-left\fR
     \fIshift-right\fR
     \fIleft-click\fR
@@ -520,8 +522,8 @@ triggered whenever the query string is changed.
     \fBpage-up\fR               \fIpgup\fR
     \fBhalf-page-down\fR
     \fBhalf-page-up\fR
-    \fBpreview-down\fR
+    \fBpreview-down\fR          \fIshift-down\fR
-    \fBpreview-up\fR
+    \fBpreview-up\fR            \fIshift-up\fR
     \fBpreview-page-down\fR
     \fBpreview-page-up\fR
     \fBprevious-history\fR      (\fIctrl-p\fR on \fB--history\fR)

src/options.go

@@ -426,6 +426,10 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = tui.PgUp
 		case "pgdn", "page-down":
 			chord = tui.PgDn
+		case "shift-up":
+			chord = tui.SUp
+		case "shift-down":
+			chord = tui.SDown
 		case "shift-left":
 			chord = tui.SLeft
 		case "shift-right":

src/terminal.go

@@ -277,6 +277,9 @@ func defaultKeymap() map[int][]action {
 	keymap[tui.PgUp] = toActions(actPageUp)
 	keymap[tui.PgDn] = toActions(actPageDown)
 
+	keymap[tui.SUp] = toActions(actPreviewUp)
+	keymap[tui.SDown] = toActions(actPreviewDown)
+
 	keymap[tui.Rune] = toActions(actRune)
 	keymap[tui.Mouse] = toActions(actMouse)
 	keymap[tui.DoubleClick] = toActions(actAccept)

src/tui/light.go

@@ -458,25 +458,22 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 						}
 					}
 					return Event{Invalid, 0, nil}
-				case 59:
+				case ';':
 					if len(r.buffer) != 6 {
 						return Event{Invalid, 0, nil}
 					}
 					*sz = 6
 					switch r.buffer[4] {
-					case 50:
+					case '2', '5':
 						switch r.buffer[5] {
-						case 68:
+						case 'A':
-							return Event{Home, 0, nil}
+							return Event{SUp, 0, nil}
-						case 67:
+						case 'B':
-							return Event{End, 0, nil}
+							return Event{SDown, 0, nil}
-						}
+						case 'C':
-					case 53:
-						switch r.buffer[5] {
-						case 68:
-							return Event{SLeft, 0, nil}
-						case 67:
 							return Event{SRight, 0, nil}
+						case 'D':
+							return Event{SLeft, 0, nil}
 						}
 					} // r.buffer[4]
 				} // r.buffer[3]

src/tui/tui.go

@@ -61,6 +61,8 @@ const (
 	Home
 	End
 
+	SUp
+	SDown
 	SLeft
 	SRight