catoptions – Preserving and recalling standard catcodes

The pack­age changes pack­age load­ing in­ter­nals so that all sub­se­quently loaded pack­ages can rely on nor­mal/stan­dard cat­codes of all ASCII char­ac­ters. The pack­age de­fines canon­i­cal con­trol se­quences to rep­re­sent all the vis­i­ble ASCII char­ac­ters. It also pro­vides ro­bust op­tion pars­ing mech­a­nisms (XDe­clareOp­tion, XEx­e­cuteOp­tions and XPro­cessOp­tions, which will be used by \doc­u­ment­class if the pack­age has al­ready been loaded). The pack­age also pro­vides a range of other TeX pro­gram­ming tools.