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Displaying the Registered Trade Mark Symbol ®

$rmark character$$

See Also
dollar , cmark , newlinech

All subsequent occurrences of the first character in character are converted to the ® symbol. There can be no $ characters in character . In addition, leading an trailing white space in character is ignored.

The input
     $rmark !$$
     The O-Matrix! program
results in
The O-Matrix® program

Characters in the index and other commands are also converted. For example, given the rmark command above,
     $index !$$
is an index command corresponding to the ® symbol.

The rmark command has effect till the next such command is executed or the end of the current section (which ever comes first). The command
     $rmark $$
removes the effect of the current rmark command without providing a new character that is converted to the registered trade mark symbol.
Input File: rmark.omh