LibGUI: Fix crash on deleting word forward

<Ctrl-Del> will crash when deleting at the end of line
where the next line contains only punctuation and seperator characters,
because TextDocument::first_word_break_after will return a wrong index
of the next word break (+1 bigger than the correct index),
thus RemoveTextCommand will try to remove a out-of-bound text range
causing a crash.

1 files changed, 1 insertions, 1 deletions

diff --git a/Userland/Libraries/LibGUI/TextDocument.cpp b/Userland/Libraries/LibGUI/TextDocument.cpp
index f3e225d025..0770cd41d6 100644
--- a/Userland/Libraries/LibGUI/TextDocument.cpp
+++ b/Userland/Libraries/LibGUI/TextDocument.cpp
@@ -791,7 +791,7 @@ TextPosition TextDocument::first_word_break_after(TextPosition const& position)
             auto view_between_target_and_index = line.view().substring_view(target.column(), *index - target.column());
 
             if (should_continue_beyond_word(view_between_target_and_index)) {
-                target.set_column(*index + 1);
+                target.set_column(min(*index + 1, line.length()));
                 continue;
             }