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unitdiff(1)		   FPC unit difference viewer		     unitdiff(1)

NAME
     unitdiff - Describe differences in the interface of a FPC unit.

SYNOPSIS
     unitdiff [ --disable-arguments] [ --disable-private] [ --disable-protected]
     [	--help]  [  --lang=language]  [ --list] [ --output=filename] [ --sparse]
     file1 file2

Description
     unitdiff scans one or two Free Pascal unit source files  and  either  lists
     all  available identifiers, or describes the differences in identifiers be-
     tween the two units.

Usage
     You can invoke unitdiff with as the only required argument  a  input  file-
     name. It will then simply list all available identifiers.

     The regular use is to invoke unitdiff with input1 input2 arguments. It will
     then  show  the  difference in interface between the two units, or list the
     available identifiers in both units. The output  of  unitdiff  will  go  to
     standard output by default.

Options
     unitdiff  has some options, most of them optional, defaults will be used in
     most cases.

     --disable-arguments
	    If this option is specified, unitdiff will not check  the  arguments
	    of functions and procedures. By default, these are checked as well.

     --disable-private
	    By	default,  private methods of classes are checked. if this option
	    is specified, private fields or methods are not checked.

     --disable-protected
	    By default, protected  methods of classes are checked. if  this  op-
	    tion  is  specified, protected and private fields or methods are not
	    checked.

     --help
	    Emit a short help text and exit.

     --lang=language
	    Sets the language for the output file.  This  will	mainly	set  the
	    strings  used  for the headers in various parts of the documentation
	    files (by default they're in english). Currently, valid options are

	    de	   German.

	    fr	   French.

	    nl	   Dutch.

     --list
	    If this option is specified, only the list of available  identifiers
	    will  be  specified  for the unit or units. If only 1 unit is speci-
	    fied, this option is automatically assumed.

     --output=filename
	    This option tells unitdiff where the output should go. If  this  op-
	    tion  is  not  specified, the output is sent to standard output (the
	    screen).

     --sparse
	    Turns on sparse mode. In this mode, the output will not contain  the
	    types  of  the  identifiers.  Only	the names of the identifiers are
	    written to the output. By default, also type descriptions are  writ-
	    ten.

SEE ALSO
	    ppc386(1) fpdoc(1)

Free Pascal			14 November 2004		     unitdiff(1)

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