fix: print err don't panic and in the case of regex compile failing on menu find

readline/comp-group.go

@@ -73,6 +73,7 @@ func (g *CompletionGroup) updateTabFind(rl *Instance) {
 
 	// We perform filter right here, so we create a new completion group, and populate it with our results.
 	for i := range g.Suggestions {
+		if rl.regexSearch == nil { continue }
 		if rl.regexSearch.MatchString(g.Suggestions[i]) {
 			suggs = append(suggs, g.Suggestions[i])
 		} else if g.DisplayType == TabDisplayList && rl.regexSearch.MatchString(g.Descriptions[g.Suggestions[i]]) {

readline/tabfind.go

@@ -33,6 +33,7 @@ func (rl *Instance) updateTabFind(r []rune) {
 	var err error
 	rl.regexSearch, err = regexp.Compile("(?i)" + string(rl.tfLine))
 	if err != nil {
+		rl.RefreshPromptLog(err.Error())
 		rl.infoText = []rune(Red("Failed to match search regexp"))
 	}