Newer
Older
/**
* @file
*/
/**
*
*/
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(
' ',
),
$string
);
}
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
function views_natural_sort_remove_symbols($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 $encode;
}
/**
* Simply convert days of the week over to numbers.
*
* This "should" be multilingual safe.
*/
function views_natural_sort_days_of_the_week_sort_days($string) {
global $language;
// Adding a configuration so that in the future an admin page can be made
// to switch which day is the first day of the week based on local.
$used_language = isset($language->language) ? $language->language : 'en';
$first_day = variable_get('views_natural_sort_days_of_the_week_first_day_' . $used_language, "Sunday");
$day_list = views_natural_sort_days_of_the_week_get_default_days();
$sorted_days = $day_list;
// Go through list and resort it and Translate it.
$start = array_search($first_day, $day_list);
for ($i = 0; $i < 7; $i++) {
$current_day = ($i + $start) % 7;
$abbreviations = views_natural_sort_days_of_the_week_get_acceptable_day_abbreviations($day_list[$current_day], $used_language);
$translated_day = t($day_list[$current_day]);
$string = preg_replace(
array(
'/\b' . $translated_day . '\b/i',
'/\b(' . implode(views_natural_sort_days_of_the_week_get_acceptable_day_abbreviations($day_list[$current_day]), '\.?|') . ')\b/i',
' ' . $i . ' ',
$string
);
}
return $string;
}
/**
*
*/
function views_natural_sort_days_of_the_week_get_default_days() {
"Sunday",
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
/**
*
*/
function views_natural_sort_days_of_the_week_get_acceptable_day_abbreviations($day, $lang = 'en') {
$default_days = views_natural_sort_days_of_the_week_get_default_days();
$index = array_search($day, $default_days);
$default_abbrev = views_natural_sort_days_of_the_week_get_default_day_abbreviations();
return variable_get(
'views_natural_sort_days_of_the_week_' . $lang . '_' . $day,
$default_abbrev[$index]
);
}
/**
*
*/
function views_natural_sort_days_of_the_week_get_default_day_abbreviations() {