From 72d7c4b8ab652bb455bffdeab12ccc6e97ad663d Mon Sep 17 00:00:00 2001
From: sammyette <torchedsammy@gmail.com>
Date: Sat, 25 Mar 2023 17:37:34 -0400
Subject: [PATCH] feat: add method for deleting history

---
 history.go           | 16 ++++++++++++++++
 readline/history.go  | 11 +++++++++++
 readline/readline.go |  9 +++++++++
 3 files changed, 36 insertions(+)

diff --git a/history.go b/history.go
index 51ccf27..bd547cf 100644
--- a/history.go
+++ b/history.go
@@ -12,6 +12,14 @@ import (
 
 type luaHistory struct {}
 
+
+func (h *luaHistory) Delete(idx int) error {
+	histWrite := hshMod.Get(rt.StringValue("history")).AsTable().Get(rt.StringValue("delete"))
+	_, err := rt.Call1(l.MainThread(), histWrite, rt.IntValue(int64(idx)))
+
+	return err
+}
+
 func (h *luaHistory) Write(line string) (int, error) {
 	histWrite := hshMod.Get(rt.StringValue("history")).AsTable().Get(rt.StringValue("add"))
 	ln, err := rt.Call1(l.MainThread(), histWrite, rt.StringValue(line))
@@ -109,6 +117,14 @@ func (h *fileHistory) Write(line string) (int, error) {
 	return len(h.items), nil
 }
 
+func (h *fileHistory) Delete(idx int) error {
+	h.items[idx] = ""
+	h.f.WriteAt([]byte(strings.Join(h.items, "\n")), 0)
+	h.f.Sync()
+
+	return nil
+}
+
 func (h *fileHistory) GetLine(idx int) (string, error) {
 	if len(h.items) == 0 {
 		return "", nil
diff --git a/readline/history.go b/readline/history.go
index f772813..91dccb9 100644
--- a/readline/history.go
+++ b/readline/history.go
@@ -13,6 +13,9 @@ type History interface {
 	// Append takes the line and returns an updated number of lines or an error
 	Write(string) (int, error)
 
+	// Delete removes an entry from the history based on the index.
+	Delete(int) error
+
 	// GetLine takes the historic line number and returns the line or an error
 	GetLine(int) (string, error)
 
@@ -61,6 +64,10 @@ func (h *ExampleHistory) Write(s string) (int, error) {
 	return len(h.items), nil
 }
 
+func (h *ExampleHistory) Delete(idx int) error {
+	return nil
+}
+
 // GetLine returns a line from history
 func (h *ExampleHistory) GetLine(i int) (string, error) {
 	return h.items[i], nil
@@ -85,6 +92,10 @@ func (h *NullHistory) Write(s string) (int, error) {
 	return 0, nil
 }
 
+func (h *NullHistory) Delete(idx int) error {
+	return nil
+}
+
 // GetLine returns a line from history
 func (h *NullHistory) GetLine(i int) (string, error) {
 	return "", nil
diff --git a/readline/readline.go b/readline/readline.go
index f1d6c96..54713a6 100644
--- a/readline/readline.go
+++ b/readline/readline.go
@@ -837,6 +837,15 @@ func (rl *Instance) escapeSeq(r []rune) {
 		rl.updateHelpers()
 
 	case seqCtrlDelete, seqCtrlDelete2, seqAltD:
+		if rl.searchMode == HistoryFind {
+			fmt.Println("\nCURRENT COMP\n", string(rl.lineComp), "\n\n\n")
+			rl.resetVirtualComp(true)
+
+			rl.renderHelpers()
+			rl.viUndoSkipAppend = true
+			return
+		}
+
 		if rl.modeTabCompletion {
 			rl.resetVirtualComp(false)
 		}