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Fix infinite loop in textarea wordLeft navigation #987

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Fix infinite loop in textarea wordLeft navigation #987

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713b218
Fix infinite loop in textarea wordLeft navigation
May 22, 2026
a80ec51
Add regression test for textarea wordLeft infinite loop
May 22, 2026
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3 changes: 3 additions & 0 deletions textarea/textarea.go
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Original file line number Diff line number Diff line change
Expand Up @@ -959,6 +959,9 @@ func (m *Model) wordLeft() {
if m.col < len(m.value[m.row]) && !unicode.IsSpace(m.value[m.row][m.col]) {
break
}
if m.col == 0 && m.row == 0 {
break
}
}

for m.col > 0 {
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22 changes: 22 additions & 0 deletions textarea/textarea_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import (
"fmt"
"strings"
"testing"
"time"
"unicode"

tea "charm.land/bubbletea/v2"
Expand Down Expand Up @@ -2429,3 +2430,24 @@ func stripString(str string) string {

return strings.Join(lines, "\n")
}

func TestWordLeftInfiniteLoopRepro(t *testing.T) {
m := New()
m.SetValue(" hello")
m.col = 0
m.row = 0

done := make(chan struct{})
go func() {
m.wordLeft()
close(done)
}()

select {
case <-done:
t.Log("wordLeft finished")
case <-time.After(2 * time.Second):
t.Fatal("wordLeft timed out (likely infinite loop)")
}
}