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.

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