Number the lines of the article by default

[roytsmart]

Problem

The AAS pre-submission checklist requires that manuscripts include line numbers, so reviewers can refer to specific lines. Nothing in this library did that, and it is the kind of requirement noticed only after the manuscript has been uploaded.

Changes

Document now passes the linenumbers class option by default:

\documentclass[twocolumn,linenumbers]{aastex701}

and takes a linenumbers argument to turn it off, for a version meant to be read rather than reviewed:

aastex.Document(linenumbers=False)

The option is appended to whatever document_options were supplied, accepting either a string or a list, and is not duplicated if it was already present.

Testing

Tests cover the default, the disabled case, and each form of document_options, asserting the option appears exactly once alongside the options given. Also compiled two real documents and confirmed line numbers appear in the text layer of the default one and are absent with linenumbers=False. Suite: 119 passing.

🤖 Generated with Claude Code

https://claude.ai/code/session_01BYjDL98znSud1yFh9chnkP

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (d493b15) to head (d6d545c).

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #14   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            4         4           
  Lines          642       657   +15     
=========================================
+ Hits           642       657   +15     

Flag	Coverage Δ
unittests	100.00% <100.00%> (ø)

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