INDEX FORTRAN Cross Referencer and Flow Chart Generator

          INDEX is a FORTRAN source cross-referenceing  and  flow  charting
     utility  that  allows  the  user  to  look  at individual source files
     (optionally saveing the data for an overall SUPER INDEX) and determine
     what  variables  are  used  on  what  lines  and  how  they  are used.
     furthermore the user can select for display only variables  or  COMMON
     blocks with the characteristics that he is interested in-global/local,
     assigned value/not assigned value, used/unused, imported/exported, etc
     in  any  combination.   Also available is the optional ability to show
     the  variable  storage  information  (local,  in  COMMON,  passed   by
     argument,  etc)  and useage in FUNCTION/SUBROUTINE calls (routine used
     in and argument number)  in  both  the  basic  and  SUPER  INDEX.   If
     selected,  the  user may at the same time generate a flow chart of the
     source file currently being cross-referenced.

          In addition the user can also save the  selected  variable/COMMON
     block   names   (with   optional   user  specified  tags  for  further
     identification and/or variable storage location information ) or entry
     point  information  from multiple files and output the accumlated data
     as a super index (with a great deal of user control over the  form  of
     the  data  display)  or  as an entry point cross reference showing who
     calls who and is called by who (with optional graphical tree output).

          Before building, the system manager should read the last half  of 
     the  document  INDEX.DOC  generated  by  the  command  @DOCUMENT.