Vít Starý Novotný submitted an update to the

expltools

package.

Version: 2025-11-24 License: lppl1.3c gpl2+

Summary description: Development tools for expl3 programmers

Announcement text: ----------------------------------------------------------------------

## expltools 2025-11-24

### explcheck v0.16.0

#### Development

This version of explcheck has implemented the following new features:

- Support specifying cut-off dates for deprecations from the file `l3obsolete.txt` and prefixes from the file `l3prefixes.csv`. (suggested by @YDX-2147483647 in #147 and #149, added in #150)

For example, here is how your config file `.explcheckrc` might look if you would like to only take into account the deprecations and prefixes from TeX Live 2024 and earlier:

``` toml [defaults] l3obsolete_max_deprecated_date = "2024-03-30" l3prefixes_max_first_registered_date = "2024-11-18" ```

You may get these dates by running the script `generate-explcheck-latex3.lua` with files `l3obsolete.txt` and `l3prefixes.csv` from TeX Live 2024 placed in the current working directory or other locations indexed by the KPathSea library. Here is the output of the script:

``` LPEG parsers and other information extracted from LaTeX3 data files. Generated on 2025-11-06 from the following files: - "l3obsolete.txt" with the latest obsolete entry from 2024-03-30 - "l3prefixes.csv" with the latest registered prefix from 2024-11-18 ```

You may also just use the dates of the last update to TeX Live 2024 (2025-03-09) for both options, see https://tug.org/historic, directory `systems/texlive/2024/tlnet-final`.

#### Fixes

This version of explcheck has fixed the following bugs:

- Fix an attempt to index a nil value in function `count_segments()` from the file `explcheck-evaluation.lua`. (#150)

This bug would surface when printing results for files whose processing stopped before the syntactic analysis step.

#### Continuous integration

This version of explcheck has made the following changes to our continuous integration:

- Use historic files "l3obsolete.txt" and "l3prefixes.csv" in CI. (#150)

- Include example files from the `doc` subtree in regression tests. (#150)

This has reduced code coverage from ca 24% to 21% of all expl3 tokens on TeX Live 2024 and from ca 22% to 20% on current TeX Live 2025 (2025-11-06).

- Check if the configuration is minimal even for expl3 files without any issues. (#150)

This is necessary to prevent incorrect recommendations to remove unnecessary default settings from the file `.explcheckrc` in the script `prune-explcheck-config.lua`.

- Bump actions/checkout from 5 to 6. (contributed by @dependabot in #151)

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The package’s Catalogue entry can be viewed at https://ctan.org/pkg/expltools

The package’s files themselves can be inspected at https://mirrors.ctan.org/support/expltools/

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Thanks for the upload.

For the CTAN Team Petra Rübe-Pugliese

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