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4.1.5 \DeclareTextCommandDefault & \ProvideTextCommandDefault





Give a default definition for \cmd, for when that command is not defined in the encoding currently in force. This default should only use encodings known to be available.

This makes \copyright available.


It uses only an encoding (OMS) that is always available.

The \DeclareTextCommandDefault should not occur in the encoding definition files since those files should declare only commands for use when you select that encoding. It should instead be in a package.

As with the related non-default commands, the \ProvideTextCommandDefault has exactly the same behavior as \DeclareTextCommandDefault except that it does nothing if \cmd is already defined (see \DeclareTextCommand & \ProvideTextCommand). So, packages can use it to provide fallbacks that other packages can improve upon.

Unofficial LaTeX2e reference manual