From c426cb580bf6de0c84224e03fdaae06d39e3d9eb Mon Sep 17 00:00:00 2001
From: IllusionMan1212 <hisham.abourgheba@gmail.com>
Date: Fri, 31 Dec 2021 17:33:55 +0200
Subject: [PATCH] fix textinput infinite loop and panic

fixes infinite loop when deleting input that only contains whitespace
using deleteWordLeft()
fixes index out of range panic when deleting input that only contains
whitespace using deleteWordRight()
---
 textinput/textinput.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/textinput/textinput.go b/textinput/textinput.go
index ba5c7721..6f3481ed 100644
--- a/textinput/textinput.go
+++ b/textinput/textinput.go
@@ -415,6 +415,9 @@ func (m *Model) deleteWordLeft() bool {
 	i := m.pos
 	blink := m.setCursor(m.pos - 1)
 	for unicode.IsSpace(m.value[m.pos]) {
+		if m.pos <= 0 {
+			break
+		}
 		// ignore series of whitespace before cursor
 		blink = m.setCursor(m.pos - 1)
 	}
@@ -457,6 +460,10 @@ func (m *Model) deleteWordRight() bool {
 	for unicode.IsSpace(m.value[m.pos]) {
 		// ignore series of whitespace after cursor
 		m.setCursor(m.pos + 1)
+
+		if m.pos >= len(m.value) {
+			break
+		}
 	}
 
 	for m.pos < len(m.value) {