fsplit man page on SunOS

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FSPLIT(1)							     FSPLIT(1)

NAME
       fsplit  -  split	 a multi-routine  FORTRAN 90 or FORTRAN 77 source file
       into individual files.

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

DESCRIPTION
       fsplit takes as input a file containing FORTRAN 77 or FORTRAN 90 source
       code.   It  attempts  to split the input into separate routine files of
       the form <name>.<syf>, where <name> is the name	of  the	 program  unit
       (function,  subroutine,	module,	 block	data  or program) and <syf> is
       extension of name; it corresponds to  the  source  language  of	source
       code.

       Block  data  subprograms	 with  no  names  get  names of the form blkd‐
       taNNN.<syf>, where NNN are three digits and a file of  this  name  does
       not already exist.

       Main programs with no names get names of the form mainNNN.<syf>

       If  there is a trouble in classifying a program	unit, or if name.<syf>
       already exists, the  program  unit  is  put  in	a  file	 of  the  form
       zzzNNN.<syf>, where the file zzzNNN.<syf> does not already exist.

OPTIONS
       -e efile
	      Normally,	 each  subprogram  unit is split into a separate file.
	      But if e-option is used, then only  subprograms  named in the e-
	      option are split off.
	      Example
	       The command fsplit -e sub1 -e sub2 prog.f
	       isolates sub1 and sub2 in the files sub1.f and sub2.f only.

       -u     Default all unit names are converted to lower case.  When the u-
	      option is used all units save their own original names.
	      Example Let the file main.f77 contain:
		  subroutine SUB1
		  ...
		  end
		  subroutine SUB2
		  ...
		  end

	      Then the command
		   fsplit  main.f77
	       will build files named "sub1.f77" and "sub2.f77"

	      And the command
		  fsplit  -u main.f77
	       will build files named "SUB1.f77" and "SUB2.f77"

       naming-options
	      As it was noted above fsplit program takes source files contain‐
	      ing  FORTRAN-77  and FORTRAN-90 code.  If naming options are not
	      set (see below), fsplit is guided by the following rules:
		- If <syf> is '.f90' or '.F90' then input file	is  considered
	      as FORTRAN-90 text in a free form.
		-  If <syf> is '.f77' or '.F' then input file is considered as
	      FORTRAN-77 text.
		- If <syf> is other then above-mentioned (for example '.f'  or
	      '.for'), then input file is also considered as FORTRAN-77 text.

       There are some options for the definition of source language and source
       form

       -f90   fsplit will treat source file as FORTRAN-90.

       -fixed fsplit will treat source file as fixed form.  (This  option  has
	      meaning for fortran-90 text only).

EXAMPLES
       1.     fsplit -f90 -fixed main1.f

   main1.f file will be considered as
       a file containing FORTRAN-90 text in a fixed form.

       2.     fsplit -f90  main2.f

   main2.f file will be considered as
       a file containing FORTRAN-90 text in a free form.

       3.     fsplit -f90  main3.f77

   main3.f77 file will be considered as
       a file containing FORTRAN-90 text in a free form.

DIAGNOSTICS
       If  names  specified  via  the -e option are not found, a diagnostic is
       written to standard error.

BUGS
       Nonstandard source formats may confuse fsplit.

       If source code is  not  syntactically  right  program  it  may  confuse
       fsplit.

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

				  March 2004			     FSPLIT(1)
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