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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 trans‐
       lation 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 169 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 resyn‐
       chronize	 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] ]

       iPrint 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

       Developper 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://sourceware.cygnus.com/docbook-tools/	   <URL:http://source‐
       ware.cygnus.com/docbook-tools/>

       the home page of the DocBook tools, a compendium of all tools necessary
       to process DocBook files, including the DocBookr-utils

				 27 April 2001			   SGMLDIFF(1)

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