# Description
This pr addresses the comment:
https://github.com/nushell/nushell/issues/11791#issuecomment-2308384155
It's caused by if the last row have a very different format to the first
row, the value of `end_char` will exceed the `line_char_boundaries`.
Adding a guard for it should avoid such panic.
# User-Facing Changes
The following code should no longer panic:
```shell
"nu_plugin_highlight = '1.2.2+0.97.1' # A nushell plugin for syntax highlighting
trace_nu_plugin = '0.3.1' # A wrapper to trace Nu plugins
nu_plugin_bash_env = '0.13.0' # Nu plugin bash-env
nu_plugin_from_sse = '0.4.0' # Nushell plugin to convert a HTTP server sent event stream to structured data
... and 90 crates more (use --limit N to see more)" | detect columns -n --guess
```
# Tests + Formatting
Added 1 test.
c150af4279