345 lines
11 KiB
PHP
345 lines
11 KiB
PHP
<?php
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/**
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* @package h2o.filters
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*/
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class FilterCollection {};
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class CoreFilters extends FilterCollection {
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static function first($value) {
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return $value[0];
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}
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static function last($value) {
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return $value[count($value) - 1];
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}
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static function join($value, $delimiter = ', ') {
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return join($delimiter, $value);
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}
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static function urlencode($data) {
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if (is_array($data)) {
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$result;
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foreach ($data as $name => $value) {
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$result .= $name.'='.urlencode($value).'&'.$querystring;
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}
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$querystring = substr($result, 0, strlen($result)-1);
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return htmlspecialchars($result);
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} else {
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return urlencode($data);
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}
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}
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static function hyphenize ($string) {
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$rules = array('/[^\w\s-]+/'=>'','/\s+/'=>'-', '/-{2,}/'=>'-');
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$string = preg_replace(array_keys($rules), $rules, trim($string));
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return $string = trim(strtolower($string));
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}
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static function urlize($url, $truncate = false) {
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if (preg_match('/^(http|https|ftp:\/\/([^\s"\']+))/i', $url, $match))
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$url = "<a href='{$url}'>". ($truncate ? truncate($url,$truncate): $url).'</a>';
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return $url;
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}
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static function set_default($object, $default) {
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return !$object ? $default : $object;
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}
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}
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class StringFilters extends FilterCollection {
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static function humanize($string) {
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$string = preg_replace('/\s+/', ' ', trim(preg_replace('/[^A-Za-z0-9()!,?$]+/', ' ', $string)));
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return capfirst($string);
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}
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static function capitalize($string) {
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return ucwords(strtolower($string)) ;
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}
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static function titlize($string) {
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return self::capitalize($string);
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}
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static function capfirst($string) {
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$string = strtolower($string);
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return strtoupper($string{0}). substr($string, 1, strlen($string));
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}
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static function tighten_space($value) {
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return preg_replace("/\s{2,}/", ' ', $value);
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}
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static function escape($value, $attribute = false) {
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return htmlspecialchars($value, $attribute ? ENT_QUOTES : ENT_NOQUOTES);
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}
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static function force_escape($value, $attribute = false) {
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return self::escape($value, $attribute);
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}
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static function e($value, $attribute = false) {
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return self::escape($value, $attribute);
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}
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static function safe($value) {
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return $value;
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}
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static function truncate ($string, $max = 50, $ends = '...') {
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return (strlen($string) > $max ? substr($string, 0, $max).$ends : $string);
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}
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static function limitwords($text, $limit = 50, $ends = '...') {
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if (strlen($text) > $limit) {
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$words = str_word_count($text, 2);
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$pos = array_keys($words);
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if (isset($pos[$limit])) {
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$text = substr($text, 0, $pos[$limit]) . $ends;
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}
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}
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return $text;
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}
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}
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class NumberFilters extends FilterCollection {
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static function filesize ($bytes, $round = 1) {
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if ($bytes === 0)
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return '0 bytes';
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elseif ($bytes === 1)
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return '1 byte';
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$units = array(
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'bytes' => pow(2, 0), 'kB' => pow(2, 10),
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'BM' => pow(2, 20), 'GB' => pow(2, 30),
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'TB' => pow(2, 40), 'PB' => pow(2, 50),
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'EB' => pow(2, 60), 'ZB' => pow(2, 70)
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);
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$lastUnit = 'bytes';
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foreach ($units as $unitName => $unitFactor) {
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if ($bytes >= $unitFactor) {
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$lastUnit = $unitName;
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} else {
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$number = round( $bytes / $units[$lastUnit], $round );
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return number_format($number) . ' ' . $lastUnit;
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}
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}
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}
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static function currency($amount, $currency = 'USD', $precision = 2, $negateWithParentheses = false) {
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$definition = array(
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'EUR' => array('<27>','.',','), 'GBP' => '<27>', 'JPY' => '<27>',
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'USD'=>'$', 'AU' => '$', 'CAN' => '$'
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);
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$negative = false;
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$separator = ',';
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$decimals = '.';
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$currency = strtoupper($currency);
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// Is negative
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if (strpos('-', $amount) !== false) {
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$negative = true;
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$amount = str_replace("-","",$amount);
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}
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$amount = (float) $amount;
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if (!$negative) {
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$negative = $amount < 0;
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}
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if ($negateWithParentheses) {
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$amount = abs($amount);
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}
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// Get rid of negative zero
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$zero = round(0, $precision);
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if (round($amount, $precision) === $zero) {
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$amount = $zero;
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}
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if (isset($definition[$currency])) {
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$symbol = $definition[$currency];
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if (is_array($symbol))
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@list($symbol, $separator, $decimals) = $symbol;
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} else {
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$symbol = $currency;
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}
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$amount = number_format($amount, $precision, $decimals, $separator);
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return $negateWithParentheses ? "({$symbol}{$amount})" : "{$symbol}{$amount}";
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}
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}
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class HtmlFilters extends FilterCollection {
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static function base_url($url, $options = array()) {
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return $url;
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}
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static function asset_url($url, $options = array()) {
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return self::base_url($url, $options);
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}
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static function image_tag($url, $options = array()) {
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$attr = self::htmlAttribute(array('alt','width','height','border'), $options);
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return sprintf('<img src="%s" %s/>', $url, $attr);
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}
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static function css_tag($url, $options = array()) {
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$attr = self::htmlAttribute(array('media'), $options);
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return sprintf('<link rel="stylesheet" href="%s" type="text/css" %s />', $url, $attr);
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}
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static function script_tag($url, $options = array()) {
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return sprintf('<script src="%s" type="text/javascript"></script>', $url);
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}
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static function links_to($text, $url, $options = array()) {
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$attrs = self::htmlAttribute(array('ref'), $options);
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$url = self::base_url($url, $options);
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return sprintf('<a href="%s" %s>%s</a>', $url, $attrs, $text);
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}
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static function links_with ($url, $text, $options = array()) {
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return self::links_to($text, $url, $options);
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}
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static function strip_tags($text) {
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$text = preg_replace(array('/</', '/>/'), array(' <', '> '),$text);
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return strip_tags($text);
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}
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static function linebreaks($value, $format = 'p') {
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if ($format === 'br')
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return HtmlFilters::nl2br($value);
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return HtmlFilters::nl2pbr($value);
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}
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static function nl2br($value) {
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return str_replace("\n", "<br />\n", $value);
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}
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static function nl2pbr($value) {
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$result = array();
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$parts = preg_split('/(\r?\n){2,}/m', $value);
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foreach ($parts as $part) {
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array_push($result, '<p>' . HtmlFilters::nl2br($part) . '</p>');
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}
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return implode("\n", $result);
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}
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protected static function htmlAttribute($attrs = array(), $data = array()) {
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$attrs = self::extract(array_merge(array('id', 'class', 'title', "style"), $attrs), $data);
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$result = array();
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foreach ($attrs as $name => $value) {
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$result[] = "{$name}=\"{$value}\"";
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}
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return join(' ', $result);
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}
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protected static function extract($attrs = array(), $data=array()) {
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$result = array();
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if (empty($data)) return array();
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foreach($data as $k => $e) {
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if (in_array($k, $attrs)) $result[$k] = $e;
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}
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return $result;
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}
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}
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class DatetimeFilters extends FilterCollection {
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static function date($time, $format = 'jS F Y H:i') {
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if ($time instanceof DateTime)
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$time = (int) $time->format('U');
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if (!is_numeric($time))
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$time = strtotime($time);
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return date($format, $time);
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}
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static function relative_time($timestamp, $format = 'g:iA') {
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if ($timestamp instanceof DateTime)
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$timestamp = (int) $timestamp->format('U');
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$timestamp = is_numeric($timestamp) ? $timestamp: strtotime($timestamp);
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$time = mktime(0, 0, 0);
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$delta = time() - $timestamp;
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$string = '';
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if ($timestamp < $time - 86400) {
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return date("F j, Y, g:i a", $timestamp);
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}
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if ($delta > 86400 && $timestamp < $time) {
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return "Yesterday at " . date("g:i a", $timestamp);
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}
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if ($delta > 7200)
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$string .= floor($delta / 3600) . " hours, ";
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else if ($delta > 3660)
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$string .= "1 hour, ";
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else if ($delta >= 3600)
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$string .= "1 hour ";
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$delta %= 3600;
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if ($delta > 60)
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$string .= floor($delta / 60) . " minutes ";
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else
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$string .= $delta . " seconds ";
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return "$string ago";
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}
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static function relative_date($time) {
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if ($time instanceof DateTime)
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$time = (int) $time->format('U');
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$time = is_numeric($time) ? $time: strtotime($time);
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$today = strtotime(date('M j, Y'));
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$reldays = ($time - $today)/86400;
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if ($reldays >= 0 && $reldays < 1)
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return 'today';
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else if ($reldays >= 1 && $reldays < 2)
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return 'tomorrow';
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else if ($reldays >= -1 && $reldays < 0)
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return 'yesterday';
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if (abs($reldays) < 7) {
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if ($reldays > 0) {
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$reldays = floor($reldays);
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return 'in ' . $reldays . ' day' . ($reldays != 1 ? 's' : '');
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} else {
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$reldays = abs(floor($reldays));
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return $reldays . ' day' . ($reldays != 1 ? 's' : '') . ' ago';
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}
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}
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if (abs($reldays) < 182)
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return date('l, F j',$time ? $time : time());
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else
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return date('l, F j, Y',$time ? $time : time());
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}
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static function relative_datetime($time) {
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$date = self::relative_date($time);
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if ($date === 'today')
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return self::relative_time($time);
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return $date;
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}
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}
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/* Ultizie php funciton as Filters */
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h2o::addFilter(array('md5', 'sha1', 'numberformat'=>'number_format', 'wordwrap', 'trim', 'upper' => 'strtoupper', 'lower' => 'strtolower'));
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/* Add filter collections */
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h2o::addFilter(array('CoreFilters', 'StringFilters', 'NumberFilters', 'DatetimeFilters', 'HtmlFilters'));
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/* Alias default to set_default */
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h2o::addFilter('default', array('CoreFilters', 'set_default'));
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?>
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