More refactoring

[odashi]

Overview

• Support all constant literals.
• Digits are wrapped by { and } so that the subscript operator works: $x_42$ --> $x_{42}$
  • This would insert unnecessarily many braces at this point, need further refactoring.
• Separate parsing strategy from get_latex to parser.parse_function.
• Test utilities:
  • Make ast_equal stricter.
  • Add require_at_least/most decorator to run tests on only specific Python verisons.
• Other trivial refactoring.

Details

NA

References

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Blocked by

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