sgmldiff - Online in the Cloud

PROGRAM:

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

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