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<?php
$plugin = array(
'form' => 'feeds_tamper_keyword_filter_form',
'callback' => 'feeds_tamper_keyword_filter_callback',
'validate' => 'feeds_tamper_keyword_filter_validate',
'name' => 'Keyword filter',
'multi' => 'direct',
'category' => 'Filter',
);
function feeds_tamper_keyword_filter_form($importer, $element_key, $settings) {
$form = array();
$form['words'] = array(
'#type' => 'textarea',
'#title' => t('Words or phrases to filter on'),
'#default_value' => isset($settings['words']) ? $settings['words'] : '',
'#description' => t('A list of words/phrases that need to appear in the text. Enter one value per line.'),
);
$form['word_boundaries'] = array(
'#type' => 'checkbox',
'#title' => t('Respect word boundaries'),
'#default_value' => isset($settings['word_boundaries']) ? $settings['word_boundaries'] : FALSE,
'#description' => t('If checked, then "book" will match "book" but not "bookcase".'),
);
$form['exact'] = array(
'#type' => 'checkbox',
'#title' => t('Exact'),
'#default_value' => isset($settings['exact']) ? $settings['exact'] : FALSE,
'#description' => t('If checked, then "book" will only match "book". This will override the "Respect word boundaries" setting above.'),
);
$form['case_sensitive'] = array(
'#type' => 'checkbox',
'#title' => t('Case sensitive'),
'#default_value' => isset($settings['case_sensitive']) ? $settings['case_sensitive'] : FALSE,
'#description' => t('If checked, then "book" will match "book" but not "Book" or "BOOK".'),
);
$form['invert'] = array(
'#type' => 'checkbox',
'#title' => t('Invert filter'),
'#default_value' => isset($settings['invert']) ? $settings['invert'] : FALSE,
'#description' => t('Inverting the filter will %remove items with the specified text.', array(
'%remove' => 'remove',
)),
);
return $form;
}
function feeds_tamper_keyword_filter_validate(&$settings) {
global $multibyte;
$is_multibyte = $multibyte == UNICODE_MULTIBYTE ? TRUE : FALSE;
$settings['words'] = str_replace("\r", '', $settings['words']);
$settings['word_list'] = explode("\n", $settings['words']);
$settings['word_list'] = array_map('trim', $settings['word_list']);
$settings['regex'] = FALSE;
if (!empty($settings['exact']) || $settings['word_boundaries']) {
foreach ($settings['word_list'] as &$word) {
if (!empty($settings['exact'])) {
$word = '/^' . preg_quote($word, '/') . '$/u';
}
elseif ($settings['word_boundaries']) {
if (!preg_match('/^\\w(.*\\w)?$/u', $word)) {
form_set_error('settings][words', t('Search text must begin and end with a letter, number, or underscore to use the %option option.', array(
'%option' => t('Respect word boundaries'),
)));
}
$word = '/\\b' . preg_quote($word, '/') . '\\b/u';
}
if (!$settings['case_sensitive']) {
$word .= 'i';
}
}
$settings['regex'] = TRUE;
}
elseif (!$settings['word_boundaries'] && $settings['case_sensitive']) {
$settings['func'] = $is_multibyte ? 'mb_strpos' : 'strpos';
}
elseif (!$settings['word_boundaries'] && !$settings['case_sensitive']) {
$settings['func'] = $is_multibyte ? 'mb_stripos' : 'stripos';
}
}
function feeds_tamper_keyword_filter_callback($result, $item_key, $element_key, &$field, array $settings) {
$match_func = '_feeds_tamper_keyword_filter_match_regex';
if (empty($settings['regex'])) {
$match_func = $settings['func'];
}
$match = FALSE;
if (is_array($field)) {
foreach ($field as $value) {
if (_feeds_tamper_keyword_filter_match($match_func, $value, $settings['word_list'])) {
$match = TRUE;
break;
}
}
reset($field);
}
else {
$match = _feeds_tamper_keyword_filter_match($match_func, $field, $settings['word_list']);
}
if (!$match && empty($settings['invert'])) {
unset($result->items[$item_key]);
return;
}
if ($match && !empty($settings['invert'])) {
unset($result->items[$item_key]);
return;
}
}
function _feeds_tamper_keyword_filter_match($match_func, $field, array $word_list) {
foreach ($word_list as $word) {
if ($match_func($field, $word) !== FALSE) {
return TRUE;
}
}
return FALSE;
}
function _feeds_tamper_keyword_filter_match_regex($field, $word) {
return preg_match($word, $field) > 0;
}
