NAME

Konstrukt::Plugin::diff - Print out an XHTML table with the difference between two texts

SYNOPSIS

Usage:

        <& diff &>
                <$ left $>
                1
                2
                3
                <$ / $>
                <$ right $>
                1
                3
                <$ / $>
        <& / &>

or

        <!-- set another amount of "context" lines -->
        <& diff context="2" &>
                ...
        <& / &>

or

        <!-- define a header for the columns -->
        <& diff left_header="text a" right_header="text b" &>
                ...
        <& / &>

Result:

A table showing the difference between the two texts.

DESCRIPTION

With this plugin you compare two texts and put out the difference as an XHTML table.

You may also use its Perl interface:

        my $diff = use_plugin 'diff';
        my $html = $diff->diff("1\n2\n3", "1\n3");

CONFIGURATION

You may configure the default behaviour of the diff plugin:

        #context: number of (equal) lines around a diff hunk
        diff/context 1048576

METHODS

init

Initialization.

prepare

We can do the work already in the prepare run if there is only static content inside the tag.

Parameters:

• $tag - Reference to the tag (and its children) that shall be handled.

execute

Now finally generate the result, if not already done in the prepare run.

Parameters:

• $tag - Reference to the tag (and its children) that shall be handled.

process

The real work is done here.

Parameters:

• $tag - Reference to the tag (and its children) that shall be handled.

diff

Generates the XHTML-Tables.

Parameters

• $left - The left text.
• $right - The right text.
• $left_header - The left column header. If undef, no header will be displayed.
• $right_header - The right column header. If undef, no header will be displayed.
• $context - Optional: The number of context lines around a diff hunk

file_header

Generates the header of the whole diff.

Will be called by Text::Diff.

hunk_header

Generates the header of each hunk.

Will be called by Text::Diff.

hunk

Generates the table rows for each hunk.

Will be called by Text::Diff.

hunk_footer

Generates the footer of each hunk.

Will be called by Text::Diff.

file_footer

Generates the footer of the whole diff.

Will be called by Text::Diff.

AUTHOR

Copyright 2006 Thomas Wittek (mail at gedankenkonstrukt dot de). All rights reserved.

This document is free software. It is distributed under the same terms as Perl itself.

SEE ALSO

Konstrukt::Plugin, Konstrukt