Text::WordDiff::HTMLTwoLines(3)

Name
Text::WordDiff::HTMLTwoLines - XHTML formatting for Text::WordDiff with content on two lines

Synopsis
    use Text::WordDiff;

    my $diff = word_diff 'file1.txt', 'file2.txt';  { STYLE => 'HTMLTwoLines' };
    my $diff = word_diff \$string1,   \$string2,    { STYLE => 'HTMLTwoLines' };
    my $diff = word_diff \*FH1,       \*FH2,        { STYLE => 'HTMLTwoLines' };
    my $diff = word_diff \&reader1,   \&reader2,    { STYLE => 'HTMLTwoLines' };
    my $diff = word_diff \@records1,  \@records2,   { STYLE => 'HTMLTwoLines' };

    # May also mix input types:
    my $diff = word_diff \@records1,  'file_B.txt', { STYLE => 'HTMLTwoLines' };

Description
This class subclasses Text::WordDiff::Base to provide a XHTML formatting for Text::WordDiff. See Term::WordDiff for usage details. This class should never be used directly.

Text::WordDiff::HTMLTwoLines formats word diffs for viewing in a Web browser. The output is similar to that produced by Term::WordDiff::HTML but the two lines (or files, records, etc.) are shown separately, with deleted items highlighted in the first line and inserted items highlighted in the second. HTMLTwoLines puts a span tag around each word or set of words in the diff.

The diff content is highlighted as follows:

•   "<div class="file">"

    The inputs to "word_diff()" are each contained in a div element of class "file". All the following results are subsumed by these elements.

    •   "<span class="fileheader">"

        The header section for the files being "diff"ed, usually something like:

          --- in.txt    Thu Sep  1 12:51:03 2005

        for the first file, and

          +++ out.txt   Thu Sep  1 12:52:12 2005

        for the second.

        This element immediately follows the opening "file" "<div>" element, but will not be present if Text::WordDiff cannot determine the file names for both files being compared.

    •   "<span class="hunk">"

        This element contains a single diff "hunk". Each hunk may contain the following elements:

        •   "<ins>"

            Inserted content.

        •   "<del>"

            Deleted content.

You may do whatever you like with these elements and classes; I highly recommend that you style them using CSS. You'll find an example CSS file in the eg directory in the Text-WordDiff distribution.

See Also

Text::WordDiff
Text::WordDiff::ANSIColor
Text::WordDiff::ANSIColor

Author
Amelia Ireland <join(".", $firstname, $lastname) . "@gmail.com">

Currently maintained by the developers of The Perl Shop <tps@cpan.org>.

Copyright and License
Copyright (c) 2011 Amelia Ireland. Some Rights Reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.