fix(readline): hide cursor when updating helpers

readline/codes.go

@@ -76,6 +76,8 @@ const (
 	seqCursorTopLeft    = "\x1b[H"  // Clears screen and places cursor on top-left
 
 	seqGetCursorPos = "\x1b6n" // response: "\x1b{Line};{Column}R"
+	seqHideCursor = "\x1b[?25l"
+	seqUnhideCursor = "\x1b[?25h"
 
 	seqCtrlLeftArrow  = "\x1b[1;5D"
 	seqCtrlRightArrow = "\x1b[1;5C"

readline/update.go

@@ -10,7 +10,7 @@ import (
 // it should coordinate reprinting the input line, any Infos and completions
 // and manage to get back to the current (computed) cursor coordinates
 func (rl *Instance) updateHelpers() {
-
+	print(seqHideCursor)
 	// Load all Infos & completions before anything.
 	// Thus overwrites anything having been dirtily added/forced/modified, like rl.SetInfoText()
 	rl.getInfoText()
@@ -27,6 +27,7 @@ func (rl *Instance) updateHelpers() {
 	// We are at the prompt line (with the latter
 	// not printed yet), then reprint everything
 	rl.renderHelpers()
+	print(seqUnhideCursor)
 }
 
 const tabWidth = 4