fsplit man page on 4.4BSD

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FSPLIT(1)		  BSD General Commands Manual		     FSPLIT(1)

     fsplit — split a multi-routine Fortran file into individual files

     fsplit [-e efile] ...  [file]

     Fsplit takes as input either a file or standard input containing Fortran
     source code.  It attempts to split the input into separate routine files
     of the form name.f, where name is the name of the program unit (e.g.
     function, subroutine, block data or program).  The name for unnamed block
     data subprograms has the form blkdtaNNN.f where NNN is three digits and a
     file of this name does not already exist.	For unnamed main programs the
     name has the form mainNNN.f.  If there is an error in classifying a pro‐
     gram unit, or if name.f already exists, the program unit will be put in a
     file of the form zzzNNN.f where zzzNNN.f does not already exist.

     -e efile	 Normally each subprogram unit is split into a separate file.
		 When the -e option is used, only the specified subprogram
		 units are split into separate files.  E.g.:

		       fsplit -e readit -e doit prog.f

		 will split readit and doit into separate files.

     If names specified via the -e option are not found, a diagnostic is writ‐
     ten to standard error.

     The fsplit command appeared in 4.2BSD.

     Asa Romberger and Jerry Berkman

     Fsplit assumes the subprogram name is on the first noncomment line of the
     subprogram unit.  Nonstandard source formats may confuse fsplit.

     It is hard to use -e for unnamed main programs and block data subprograms
     since you must predict the created file name.

4.2 Berkeley Distribution	 June 6, 1993	     4.2 Berkeley Distribution

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