Table cell still wrapping when using `methodology: "truncating"` in `$env.config.table.trim`

[zgibberish]

Bug report form

• I have done a basic search of the issue tracker to find any existing issues that are similar.
• I have checked that my version is at least the latest stable release available via my installation method.

Describe the bug

When using this config:

$env.config.table.trim = { methodology: "truncating", truncating_suffix: "..." }

I notice no difference compared to the default. Columns/cells that go over the screen width, always show ... (even with default config), BUT contents in the column right before it are wrapped.

This is noticeable with any wide table (e.g: ls -la) on a smaller res screen / large font size.

Additionally, with $env.config.table.header_on_separator = true, the header/footer text in the affected columns are still being truncated. Might be related to #17768 ?

Here's some screenshots ofls -la, along with the example table I gave in the "How to reproduce" section:

How to reproduce

1. Start Nushell with clean config (nu --no-config-file)
2. Increase terminal font size
3. Run ls -la. Or try printing this table

   [
   	{
   		"name": "whatever",
   		"type": "symlink",
   		"target": "/some/path",
   		"readonly": false,
   		"mode": "rwxrwxrwx",
   		"num_links": 1,
   		"inode": 12653657,
   		"user": "gibbert",
   		"group": "gibbert",
   		"size": 10,
   		"created": "2026-04-03T22:09:22.526691315+07:00",
   		"accessed": "2026-09-04T18:28:33.313157179+07:00",
   		"modified": "2026-04-03T22:09:22.526691315+07:00"
   	},
   ]

4. $env.config.table.trim = { methodology: "truncating", truncating_suffix: "..." }
5. Repeat step 3

Expected behavior

I expected that when using methodology: "truncating", no cell content would be wrapped, each row should span 1 line.

Configuration

key	value
version	0.115.1
major	0
minor	115
patch	1
branch
commit_hash
build_os	linux-x86_64
build_target	x86_64-unknown-linux-gnu
rust_version	rustc 1.97.1 (8bab26f4f 2026-07-14) (built from a source tarball)
cargo_version	cargo 1.97.0 (c980f4866 2026-06-30)
build_time	1980-01-01 00:00:00 +00:00
build_rust_channel	release
allocator	standard
features	default, helix, lsp, mcp, network, plugin, rustls-tls, sqlite, trash-support
installed_plugins
experimental_options	example=false, dc-glob=false, reorder-cell-paths=true, pipefail=true, enforce-runtime-annotations=true, native-clip=false, cell-path-types=false, background-completions=true

[fdncred]

I get this on the latest main.

[zgibberish]

I just tried table -w 100 and table, that does give the output I wanted.

$env.config.table.trim affects table's output, but not tables that are printed directly (without using | table), which still render weirdly.

Is this intended? I'm very confused.

[fdncred]

I agree that it's confusing. All tabular output runs through table whether you do | table or not. I'll see if I can figure out what is going on.

[webdevsamran]

Hi team, I would like to work on this table formatting bug.

When $env.config.table.trim methodology is set to 'truncating', table cells continue wrapping across lines under certain terminal widths rather than truncating with ellipsis. I can update cell measurement and trimming logic in crates/nu-table/ to ensure truncation methodology is respected, with test cases.

Could you please assign this to me? Thanks!

[fdncred]

I'm almost done with the change. I'll probably finish it up sometime tomorrow.

[fdncred]

Can you please try out #18979 when you get a chance?

[zgibberish]

Can you please try out #18979 when you get a chance?

@fdncred Seems to be working well for me now, thank you for taking a look at it! ❤️