Closes #244 #251 reduces cyclomatic complexity and cleanup of .lintr

[averissimo]

Changes Description

• Reduces complexity of xportr_length and xportr_format to below linter default threshold
• Reinstates linter rules:
  • object_name_linter: snake_case with exception of _xportr.attr_name_ attributes and ADaM uppercase variables (ADSL).

Task List

• The spirit of xportr is met in your Pull Request
• Place Closes #<insert_issue_number> into the beginning of your Pull Request Title (Use Edit button in top-right if you need to update)
• Summary of changes filled out in the above Changes Description. Can be removed or left blank if changes are minor/self-explanatory.
• Code is formatted according to the tidyverse style guide. Use styler package and functions to style files accordingly.
• New functions or arguments follow established convention found in the Wiki.
• Updated relevant unit tests or have written new unit tests. See our Wiki for conventions used in this package.
• Creation/updated relevant roxygen headers and examples. See our Wiki for conventions used in this package.
• Run devtools::document() so all .Rd files in the man folder and the NAMESPACE file in the project root are updated appropriately
• Run pkgdown::build_site() and check that all affected examples are displayed correctly and that all new/updated functions occur on the "Reference" page.
• Update NEWS.md if the changes pertain to a user-facing function (i.e. it has an @export tag) or documentation aimed at users (rather than developers)
• The NEWS.md entry should go under the # xportr development version section. Don't worry about updating the version because it will be auto-updated using the vbump.yaml CI.
• Address any updates needed for vignettes and/or templates.
• Link the issue Development Panel so that it closes after successful merging.
• The developer is responsible for fixing merge conflicts not the Reviewer.
• Pat yourself on the back for a job well done! Much love to your accomplishment!

[github-actions]

Package	Line Rate	Health
xportr	100%	✔
Summary	100% (785 / 785)	✔

[cpiraux]

Thank you for implementing this! I've reviewed the changes made to format.R and length.R, and everything looks good to me

[bms63]

Thank you @averissimo for helping clean up our code!! Looks very nice!