This package provides a key-value interface, \Ccool, on top of xparse's
document command parser. Global options control input processing and its
expansion. By default, they are set to meet likely requirements, depending on
context: the selected language, and which of text and math mode is active.
These options can be overridden inline. This versatility could find its use,
for example, to encode notational conventions (such as \Real - \mathbb{R}) at
the point where they are introduced in the document ("Let R denote real
numbers"). Polymorphic commands can be generated by parameterizing the keys
(for instance, one parameter value for style, another for a property). User
input to \Ccool can optionally be serialized. This can useful for typesetting
documents sharing the same notation.