104 lines
3.6 KiB
Groff
104 lines
3.6 KiB
Groff
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.\" Copyright (c) 1983, 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Asa Romberger and Jerry Berkman.
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)fsplit.1 8.1 (Berkeley) 6/6/93
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.\"
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.Dd June 6, 1993
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.Dt FSPLIT 1
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.Os BSD 4.2
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.Sh NAME
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.Nm fsplit
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.Nd split a multi-routine Fortran file into individual files
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.Sh SYNOPSIS
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.Nm fsplit
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.Op Fl e Ar efile
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\&...
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.Op Ar file
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.Sh DESCRIPTION
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.Nm Fsplit
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takes as input either a file or standard input containing Fortran source code.
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It attempts to split the input into separate routine files of the
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form
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.Ar name.f ,
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where
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.Ar name
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is the name of the program unit (e.g. function, subroutine, block data or
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program). The name for unnamed block data subprograms has the form
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.Ar blkdtaNNN.f
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where NNN is three digits and a file of this name does not already exist.
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For unnamed main programs the name has the form
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.Ar mainNNN.f .
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If there is an error in classifying a program unit, or if
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.Ar name.f
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already exists,
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the program unit will be put in a file of the form
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.Ar zzzNNN.f
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where
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.Ar zzzNNN.f
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does not already exist.
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.Pp
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.Bl -tag -width Fl
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.It Fl e Ar efile
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Normally each subprogram unit is split into a separate file. When the
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.Fl e
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option is used, only the specified subprogram units are split into separate
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files. E.g.:
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.Pp
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.Dl fsplit -e readit -e doit prog.f
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.Pp
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will split readit and doit into separate files.
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.El
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.Sh DIAGNOSTICS
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If names specified via the
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.Fl e
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option are not found, a diagnostic is written to
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standard error.
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.Sh HISTORY
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The
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.Nm fsplit
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command
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appeared in
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.Bx 4.2 .
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.Sh AUTHORS
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Asa Romberger and Jerry Berkman
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.Sh BUGS
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.Nm Fsplit
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assumes the subprogram name is on the first noncomment line of the subprogram
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unit. Nonstandard source formats may confuse
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.Nm fsplit .
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.Pp
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It is hard to use
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.Fl e
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for unnamed main programs and block data subprograms since you must
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predict the created file name.
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