Commit bd86d42e authored by generalredneck's avatar generalredneck

Big reorganization of code and documenation.

parent e6b477d9
<?php
function views_natural_sort_remove_beginning_words($string) {
$beginning_words = variable_get('views_natural_sort_beginning_words_remove', array());
if (empty($beginning_words)) {
return $string;
}
array_walk($beginning_words, 'preg_quote');
return preg_replace(
'/^(' . implode('|', $beginning_words) . ')\s+/i',
'',
$string
);
}
function views_natural_sort_remove_words($string) {
$words = variable_get('views_natural_sort_words_remove', array());
if (empty($words)) {
return $string;
}
array_walk($words, 'preg_quote');
return preg_replace(
array(
'/\s(' . implode('|', $words) . ')\s+/i',
'/^(' . implode('|', $words) . ')\s+/i',
),
array(
' ',
''
),
$string
);
}
function views_natural_sort_remove_symbols($string) {
$symbols = variable_get('views_natural_sort_symbols_remove', '');
if (strlen($symbols) == 0) {
return $string;
}
return preg_replace(
'/[' . preg_quote($symbols) . ']/',
'',
$string
);
}
/**
* Transform numbers in a string into a natural sortable string.
*
* Rules are as follows:
* - Embeded numbers will sort in numerical order. The following possibilities
* are supported
* - A leading dash indicates a negative number, unless it is preceded by a
* non-whitespace character, which case it is considered just a dash.
* - Leading zeros are properly ignored so as to not influence sort order
* - Decimal numbers are supported using a period as the decimal character
* - Thousands separates are ignored, using the comma as the thous. character
* - Numbers may be up to 99 digits before the decimal, up to the precision
* of the processor.
*/
function views_natural_sort_numbers($string) {
// Find an optional leading dash (either preceded by whitespace or the first
// character) followed by either:
// - an optional series of digits (with optional embedded commas), then a
// period, then an optional series of digits
// - a series of digits (with optional embedded commas)
return preg_replace_callback(
'/(\s-|^-)?(?:(\d[\d,]*)?\.(\d+)|(\d[\d,]*))/',
'_views_natural_sort_number_transform_match_callback',
$string
);
}
/**
* Encodes a string representing numbers into a special format that can be sorted alphanumerically.
*
* @param array $match
* array of matches passed from preg_replace_callback
* $match[0] is the entire matching string
* $match[1] if present, is the optional dash, preceded by optional whitespace
* $match[2] if present, is whole number portion of the decimal number
* $match[3] if present, is the fractional portion of the decimal number
* $match[4] if present, is the integer (when no fraction is matched)
*
* @return string
* String representing a numerical value that will sort numerically in an
* alphanumeric search.
*/
function _views_natural_sort_number_transform_match_callback($match) {
// Remove commas and leading zeros from whole number
$whole = (string)(int)str_replace(',', '', (isset($match[4]) && strlen($match[4]) > 0) ? $match[4] : $match[2]);
// Remove traililng 0's from fraction, then add the decimal and one trailing 0
$fraction = trim('.' . $match[3], '0') . '0';
$encode = sprintf('%02u', strlen($whole)) . $whole . $fraction;
if (strlen($match[1])) {
// Negative number. Make 10's complement. Put back any leading white space and the dash
// Requires intermediate to avoid double-replacing the same digit. str_replace seems to
// work by copying the source to the result, then successively replacing within it,
// rather than replacing from the source to the result.
$digits = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9');
$intermediate = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j');
$rev_digits = array('9', '8', '7', '6', '5', '4', '3', '2', '1', '0');
$encode = $match[1] . str_replace($intermediate, $rev_digits, str_replace($digits, $intermediate, $encode));
}
return $encode;
}
This diff is collapsed.
<?php
/**
* @file
*
* Node specific views_natural_sort code.
*/
/**
* Helper function for writing node data to our sort index.
*
* @param $node
* A drupal node object containing at least a nid and title.
*/
function _views_natural_sort_store_node($node) {
views_natural_sort_store(_views_natural_sort_node_to_vns($node));
}
/**
* Helper function for getting an index_entry from a node object.
*
* @param stdClass $node
* Node Entity
*
* @return array
* index_entry array
*/
function _views_natural_sort_node_to_vns($node) {
return array(
'eid' => $node->nid,
'entity_type' => 'node',
'field' => 'title',
'delta' => 0,
'content' => $node->title,
);
}
/**
* Helper function for removing node data from our sort index.
*
* @param $node
* A drupal node object containing at least a nid.
*
* @return int
* The number of rows deleted.
*/
function _views_natural_sort_remove_node($node) {
return views_natural_sort_remove(array(
'eid' => $node->nid,
'entity_type' => 'node',
'field' => 'title',
'delta' => 0,
));
}
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment