From b95057c3f8501ace6272d50caa4acd1947b425d9 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 f355bbae..41187365 100644
--- a/textinput/textinput.go
+++ b/textinput/textinput.go
@@ -410,6 +410,9 @@ 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)
 	}
@@ -452,6 +455,10 @@ 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) {