This procedure will print out the IDL documentation header for the input
routine(s). The location of the IDL routines are determined using a table
lookup algorithm so that subsequent calls are very fast. For routines
located within the Yohkoh tree, FASTDOC is an efficient substitute
for DOC_LIBRARY, which must search for routines on every call.
The /summ switch may be used to print only the procedure or function
definition line. The /multi switch will print all online versions of
the input routines. When called without parameters, an interactive version
is invoked. Currently only works on Unix machines.
IDL> fastdoc, 'fastdoc'
IDL> fastdoc, 'fastdoc', /multi, /summ
IDL> fastdoc, '*anytim*'