SGMLDIFF(1)															       SGMLDIFF(1)

NAME

       sgmldiff - Find differences in the markup of two SGML files

SYNOPSIS

       sgmldiff [ options  ... ] file1 file2 [ -a | --attributes
	   | -c  [ attributes | nesting | textpos ] | --context  [ attributes | nesting | textpos ]
	   | -s | --statistics
	   | -h | --help
	   | -v | --version ]

DESCRIPTION

       This  perl  script  allows  to determine the structural differences between two SGML files. It compares the files, regardless of what is in
       between the tags, to only focus on the markup. Its output is similar to diff(1).

       The typical use of sgmldiff is to compare an SGML file with its translation into another language. If the  translation  was  done  cleanly,
       sgmldiff returns without finding any difference in the markup.

       An example of a typical call to sgmldiff is:

	     sgmldiff english.sgml italiano.sgml

       If  there  are  differences in markup between both files, sgmldiff will output a series of differences reports summarized with lines of the
       form:

       169a164
	      At line 169 of the first file, line 164 of the second file has been added.

       8a12,15
	      At line 8 of the first file, lines 12 to 15 of the second file have been added.

       41d28  Line 41 of the first file has been destroyed, to obtain line 28 of the second file.

       63,66d61
	      Lines 63 to 66 of the first file have been destroyed. to obtain line 61 of the second file.

       52c51  Line 52 of the first file has been changed into line 51 of the second file.

       5,7c8,10
	      Lines 5 to 7 of the first file have been changed into lines 8 to 10 of the second line.  In addition to those summaries,	the  lines
	      of the first file are shown preceeded by '<' and the lines of the second file are shown preceeded by '>".

OPTIONS

       Here is the list of actions that can be requested to sgmldiff:

		    [ -a | --attributes ]
	      Include  the attribute values in the difference tests.  Don't set this value if the attributes are likely to be translated. Set this
	      value if the attributes value shouldn't change between both files. Default is to don't include  the  attributes  in  the	difference
	      tests.

		    [ -c  [ attributes | nesting | textpos ] | --context  [ attributes | nesting | textpos ] ]
	      Add  more context to the difference. Since every test between the tags is removed before testing the differences, sgmldiff is likely
	      to resynchronize itself at the wrong place, by thinking the location in both files correspond, while it's not true. By  adding  more
	      context to the compared area, such risk is disminished.

	      The allowed values for the --context option are:

	      attributes
		     Take into account the attribute names. The attribute values are controlled by the attributes option.

	      nesting
		     Take into account the nesting level of all the compared tags.

	      textpos
		     Take into account the position in the text.

		    [ -s | --statistics ]
	      Print some SGML information at the end.

		    [ -h | --help ]
	      Print a short help message and exit

		    [ -v | --version ]
	      Print the version identifier and exit

FILES

AUTHORS

		 Frederik Fouvry
	      Developer of sgmldiff.

SEE ALSO

		 jw(1)
	      conversion from a SGML file to other file formats

	  nsgmls(1)
	      a base component of Jade DSSSL engine

	  http://sources.redhat.com/docbook-tools/ <URL:http://sources.redhat.com/docbook-tools/>
	      the home page of the DocBook tools, a compendium of all tools necessary to process DocBook files, including the DocBook-utils

								 11 February 2004						       SGMLDIFF(1)