SGMLDIFF(1)                                                        SGMLDIFF(1)

       sgmldiff - Find differences in the markup of two SGML files

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

       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

       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

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

              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.

              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.

              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 '>".

       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 differ-
              ence 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  dismin-

              The allowed values for the --context option are:

                     Take into account the attribute names. The attribute val-
                     ues are controlled by the attributes option.

                     Take into account the nesting level of all  the  compared

                     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

                 Frederik Fouvry
              Developer of sgmldiff.

              conversion from a SGML file to other file formats

              a base component of OpenJade DSSSL engine

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

                                05 August 2016                     SGMLDIFF(1)
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