FCASPLIT(1)						      General Commands Manual						       FCASPLIT(1)

NAME

       fcasplit - tool to split source code into separate per-routine files

SYNOPSIS

       fcasplit [ -f  nmft ] [ -c  nmcc ] [ -a	nmas ] [-noh] [-log]
		[ +fo incf ] [ +co incc ] [ +ao incs ]
		[ -fo optf ] [ -co optc ] [ -ao opts ] file.ext

       fcasplit file.ext [ fca_n ] [ optf [ optc [ opts
				   [ nmft [ nmcc [ nmas ]]]]]]

DESCRIPTION

       fcasplit,  used	with  a command line of either form shown above, splits file file.ext having a mixture of FORTRAN / C / assembler routines
       into separate files n.f or n.c or n.s, "n" being the name of each routine, creating at the same time a shell script file.shfca and  a  Make
       file  file.mkfca   either of which can be used to compile all routines individually.  All new files are generated in the current directory,
       even if the original file.ext is in a different location.

       NOTE that the program does not work on source code written without having it in mind, since fcasplit looks for special identifying lines in
       comments of the source code in the original file, as noted below.  It is able to operate, for instance, on source code output by nypatchy.

       Defaults  are  defined in fcasplit for the names by which the compilers are called in the generated shell script and Makefile; with the -f,
       -c, -a options they could be changed.  In Debian GNU/Linux, these defaults are gcc for the C compiler, gfortran for the	FORTRAN  compiler,
       and as for the assembler.

       Defaults  are also defined for the options with which they are called; with the -fo, -co, -ao options they can be re-defined; with the +fo,
       +co, +ao options they can be incremented.  In Debian GNU/Linux, these defaults are "-c -g -O2" for the C compiler, "-c  -g  -O2	-fno-auto-
       matic" for the FORTRAN compiler, and "" (i.e., no flags) for the assembler.

       To  be  backward  compatible these options can also be specified by the positional parameters after the file-name (as in the second form of
       the command shown above).

       If the  -noh  option is given (or if the first parameter after the file-name is "fca_n") the identifying header line of each routine is not
       written out. If the -log option is given the name of each routine is printed on standard output.

FILE FORMAT

       Each routine in the original file file.ext must start with an identifying line:
	 "CDECK  ID>, "      in cols.  1-12  for FORTRAN
	 "/*DECK ID>, "      in cols.  1-12  for C
	 ";DECK  ID>, "      in cols.  1-12  for assembler
	  "DECK  ID>, "      in cols.  2-12  or
	   "DECK ID>, "      in cols.  3-12  for anything else
		     "name"  in cols. 13-40  gives the name

       In  the last two cases, or if "name" contains an extension,  the file created will be "name" without extension .f, .c or .s added to it and
       without an entry into the script.

       A trailing blank terminates the name, symbol . followed by blank also terminates, symbols  ; < # !   all terminate, symbol   */	      also
       terminates.

SEE ALSO

       nycheck(1), nydiff(1), nyindex(1), nylist(1), nymerge(1), nypatchy(1), nyshell(1), nysynopt(1), nytidy(1), yexpand(1)

       The reference manual for the Nypatchy suite of programs is available in compressed PostScript format at the following URL:
       http://wwwasdoc.web.cern.ch/wwwasdoc/psdir/p5refman.ps.gz

AUTHOR

       This  manual  page was written by Kevin McCarty <kmccarty@debian.org> for the Debian GNU/Linux system (but may be used by others), based on
       the help information printed by the fcasplit program when called with no arguments.  Both fcasplit and this man page are licensed under the
       GNU General Public License, version 2 or later (at your choice).

COPYRIGHT

       Copyright (C) CERN, 1996, 1999 and Kevin B. McCarty, 2008.

								   Mar 12, 2008 						       FCASPLIT(1)