Name

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

Syntax

fsplit [−e efile...] [file]

Description

The fsplit command 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 (for example, 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 program unit, or if name.f already exists, the program unit is put in a file of the form zzzNNN.f where zzzNNN.f does not already exist. 

Normally each subprogram unit is split into a separate file. 

Options

−e efileSplits only specified subprogram units into separate files. 

Examples

The following example splits readit and doit into separate files:

fsplit -e readit -e doit prog.f

Restrictions

The fsplit command 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. 

Diagnostics

If names specified using the −e option are not found, a diagnostic is written to standard error.