The connection for writing to the navigation file.
Rcommand
The current R command in the script file.
listname
The name of the listing file.
Details
AddNav adds an entry to the navigation file, generates
a name tag for that entry and returns it to be inserted into the
listing file. If the R command is longer than 20 characters, it
is truncated to 18 characters and an ellipsis appended.
Value
The name tag to link the listing to the navigation entry.