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This code is derived from software contributed to Berkeley by
Asa Romberger and Jerry Berkman.
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from: @(#)fsplit.1 8.1 (Berkeley) 6/6/93
.Dd June 6, 1993 .Dt FSPLIT 1 .Os .Sh NAME .Nm fsplit .Nd split a multi-routine Fortran file into individual files .Sh SYNOPSIS .Nm .Op Fl e Ar efile ... .Op Ar file .Sh DESCRIPTION .Nm 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 .Ar name.f , where .Ar 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 .Ar 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 .Ar mainNNN.f . If there is an error in classifying a program unit, or if .Ar name.f already exists, the program unit will be put in a file of the form .Ar zzzNNN.f where .Ar zzzNNN.f does not already exist.
p l -tag -width Fl t Fl e Ar efile Normally each subprogram unit is split into a separate file. When the .Fl e option is used, only the specified subprogram units are split into separate files. E.g.:
p .Dl fsplit -e readit -e doit prog.f
p will split readit and doit into separate files. .El .Sh DIAGNOSTICS If names specified via the .Fl e option are not found, a diagnostic is written to standard error. .Sh HISTORY The .Nm command appeared in x 4.2 . .Sh AUTHORS Asa Romberger and Jerry Berkman .Sh BUGS .Nm assumes the subprogram name is on the first noncomment line of the subprogram unit. Nonstandard source formats may confuse .Nm .
p It is hard to use .Fl e for unnamed main programs and block data subprograms since you must predict the created file name.