/**
* Displays a human readable HTML representation of the difference between two strings.
* similar to wp_text_diff, but tracks and returns could of lines added and removed
*
* @since 3.6.0
*
* @see wp_parse_args() Used to change defaults to user defined settings.
* @uses Text_Diff
* @uses WP_Text_Diff_Renderer_Table
*
* @param string $left_string "old" (left) version of string
* @param string $right_string "new" (right) version of string
* @param string|array $args Optional. Change 'title', 'title_left', and 'title_right' defaults.
* @return array contains html, linesadded & linesdeletd, empty string if strings are equivalent.
*/
function wp_text_diff_with_count($left_string, $right_string, $args = null)
{
$defaults = array('title' => '', 'title_left' => '', 'title_right' => '');
$args = wp_parse_args($args, $defaults);
if (!class_exists('WP_Text_Diff_Renderer_Table')) {
require ABSPATH . WPINC . '/wp-diff.php';
}
$left_string = normalize_whitespace($left_string);
$right_string = normalize_whitespace($right_string);
$left_lines = explode("\n", $left_string);
$right_lines = explode("\n", $right_string);
$text_diff = new Text_Diff($left_lines, $right_lines);
$lines_added = $text_diff->countAddedLines();
$lines_deleted = $text_diff->countDeletedLines();
$renderer = new WP_Text_Diff_Renderer_Table();
$diff = $renderer->render($text_diff);
if (!$diff) {
return '';
}
$r = "<table class='diff'>\n";
if (!empty($args['show_split_view'])) {
$r .= "<col class='content diffsplit left' /><col class='content diffsplit middle' /><col class='content diffsplit right' />";
} else {
$r .= "<col class='content' />";
}
if ($args['title'] || $args['title_left'] || $args['title_right']) {
$r .= "<thead>";
}
if ($args['title']) {
$r .= "<tr class='diff-title'><th colspan='4'>{$args['title']}</th></tr>\n";
}
if ($args['title_left'] || $args['title_right']) {
$r .= "<tr class='diff-sub-title'>\n";
$r .= "\t<td></td><th>{$args['title_left']}</th>\n";
$r .= "\t<td></td><th>{$args['title_right']}</th>\n";
$r .= "</tr>\n";
}
if ($args['title'] || $args['title_left'] || $args['title_right']) {
$r .= "</thead>\n";
}
$r .= "<tbody>\n{$diff}\n</tbody>\n";
$r .= "</table>";
return array('html' => $r, 'lines_added' => $lines_added, 'lines_deleted' => $lines_deleted);
}
function check_filterless_things()
{
// Var is string with length 113: /wp-admin/plugin-editor.php?file=my-plugin%2Fviews%2Fplugin-file.php
$referer = wp_get_referer();
// contains key "path" with value like "/wp-admin/plugin-editor.php"
$referer_info = parse_url($referer);
if ("/wp-admin/plugin-editor.php" === $referer_info["path"]) {
// We are in plugin editor
// Check for plugin edit saved
if (isset($_POST["newcontent"]) && isset($_POST["action"]) && "update" == $_POST["action"] && isset($_POST["file"]) && !empty($_POST["file"])) {
// A file was edited
$file = $_POST["file"];
// $plugins = get_plugins();
// http://codex.wordpress.org/Function_Reference/wp_text_diff
// Generate a diff of changes
if (!class_exists('WP_Text_Diff_Renderer_Table')) {
require_once ABSPATH . WPINC . '/wp-diff.php';
}
$original_file_contents = file_get_contents(WP_PLUGIN_DIR . "/" . $file);
$new_file_contents = wp_unslash($_POST["newcontent"]);
$left_lines = explode("\n", $original_file_contents);
$right_lines = explode("\n", $new_file_contents);
$text_diff = new Text_Diff($left_lines, $right_lines);
$num_added_lines = $text_diff->countAddedLines();
$num_removed_lines = $text_diff->countDeletedLines();
// Generate a diff in classic diff format
$renderer = new Text_Diff_Renderer();
$diff = $renderer->render($text_diff);
$this->infoMessage('plugin_file_edited', array("plugin_edited_file" => $file, "plugin_edit_diff" => $diff, "plugin_edit_num_added_lines" => $num_added_lines, "plugin_edit_num_removed_lines" => $num_removed_lines));
$did_log = true;
}
}
}
/**
* Get the difference between original text and a changed body of text
*
* @param string The old text
* @param string The changed text
* @return array
*/
public static function get_text_diff($old_content, $new_content)
{
$old_file = explode("\n", $old_content);
$new_file = explode("\n", $new_content);
$diff = new Text_Diff('auto', array($old_file, $new_file));
$added = $diff->countAddedLines();
$deleted = $diff->countDeletedLines();
if ($added == 0 && $deleted == 0) {
return false;
}
$net = $added - $deleted;
$result = array();
$result_added = 0;
$result_changed = 0;
$result_deleted = 0;
if ($net == 0) {
$result_changed = $added;
} elseif ($net > 0) {
$result_changed = $added - $net;
$result_added = $net;
} elseif ($net < 0) {
$result_changed = $deleted - abs($net);
$result_deleted = abs($net);
}
return array('added' => $result_added, 'deleted' => $result_deleted, 'changed' => $result_changed);
}
