function test_diff_words()
{
$lines1 = ouwiki_diff_html_to_lines($this->html1);
$lines2 = ouwiki_diff_html_to_lines($this->html2);
list($deleted, $added) = ouwiki_diff_words($lines1, $lines2);
$delarray = array();
foreach ($deleted as $word) {
$delarray[] = $word->word;
}
sort($delarray);
$addarray = array();
foreach ($added as $word) {
$addarray[] = $word->word;
}
sort($addarray);
$this->assertEqual($delarray, array('With', 'items', 'list', 'multiple', 'paragraph.'));
$this->assertEqual($addarray, array('I', 'added', 'have', 'paragraph', 'some', 'text', 'to.', 'which'));
/*
$result1=ouwiki_diff_add_markers($this->html1,$deleted,'ouw_deleted');
$result2=ouwiki_diff_add_markers($this->html2,$added,'ouw_added');
print '<div style="float:left;width:48%"><h1>Before</h1>';
// print_object($deleted);
print $result1;
print '</div><div style="float:right;width:48%"><h1>After</h1>';
// print_object($added);
print $result2;
print '</div>';
exit;*/
}
public function test_diff_words()
{
$lines1 = ouwiki_diff_html_to_lines($this->html1);
$lines2 = ouwiki_diff_html_to_lines($this->html2);
list($deleted, $added) = ouwiki_diff_words($lines1, $lines2);
$delarray = array();
foreach ($deleted as $word) {
$delarray[] = $word->word;
}
sort($delarray);
$addarray = array();
foreach ($added as $word) {
$addarray[] = $word->word;
}
sort($addarray);
$this->assertEquals(array('With', 'items', 'list', 'multiple', 'paragraph.'), $delarray);
$this->assertEquals(array('I', 'added', 'have', 'paragraph', 'some', 'text', 'to.', 'which'), $addarray);
}
/**
* Compares two HTML files. (This is the main function that everything else supports.)
* @param string $html1 XHTML for file 1
* @param string $html2 XHTML for file 2
* @return array ($result1,$result2,$changes); result1 and result2 are XHTML
* to be displayed indicating the differences, while $changes is the total
* number of changed (added or deleted) words. May be 0 if there are no
* differences or if differences are only to HTML
*/
function ouwiki_diff_html($html1, $html2)
{
$lines1 = ouwiki_diff_html_to_lines($html1);
$lines2 = ouwiki_diff_html_to_lines($html2);
list($deleted, $added) = ouwiki_diff_words($lines1, $lines2);
$changes = count($deleted) + count($added);
$result1 = ouwiki_diff_add_markers($html1, $deleted, 'ouw_deleted', '<img src="diff_deleted_begins.gif" alt="' . get_string('deletedbegins', 'ouwiki') . '" />', '<img src="diff_added_ends.gif" alt="' . get_string('deletedends', 'ouwiki') . '" />');
$result2 = ouwiki_diff_add_markers($html2, $added, 'ouw_added', '<img src="diff_added_begins.gif" alt="' . get_string('addedbegins', 'ouwiki') . '" />', '<img src="diff_added_ends.gif" alt="' . get_string('addedends', 'ouwiki') . '" />');
return array($result1, $result2, $changes);
}
/**
* Compares two HTML files. (This is the main function that everything else supports.)
* @param string $html1 XHTML for file 1
* @param string $html2 XHTML for file 2
* @return array ($result1,$result2) to be displayed indicating the differences
*/
function ouwiki_diff_html($html1, $html2)
{
$lines1 = ouwiki_diff_html_to_lines($html1);
$lines2 = ouwiki_diff_html_to_lines($html2);
list($deleted, $added) = ouwiki_diff_words($lines1, $lines2);
$result1 = ouwiki_diff_add_markers($html1, $deleted, 'ouw_deleted', '<strong class="accesshide">' . get_string('deletedbegins', 'wiki') . '</strong>', '<strong class="accesshide">' . get_string('deletedends', 'wiki') . '</strong>');
$result2 = ouwiki_diff_add_markers($html2, $added, 'ouw_added', '<strong class="accesshide">' . get_string('addedbegins', 'wiki') . '</strong>', '<strong class="accesshide">' . get_string('addedends', 'wiki') . '</strong>');
return array($result1, $result2);
}
