| Current File : /home/tsgmexic/.trash/www17/library/misc.php |
<?php
function theme_strlen($str) {
if (function_exists('mb_strlen')) {
return mb_strlen($str);
}
return strlen($str);
}
function theme_strpos($source, $target) {
if (function_exists('mb_strpos')) {
return mb_strpos($source, $target);
}
return strpos($source, $target);
}
function theme_get_array_value($arr = array(), $key = null, $def = false) {
if (is_array($arr) && @isset($arr[$key])) {
return $arr[$key];
}
return $def;
}
function theme_is_empty_html($str) {
return (!is_string($str) || theme_strlen(str_replace(array(' ', ' ', "\n", "\r", "\t"), '', $str)) == 0);
}
function theme_is_vmenu_widget($id) {
return (strpos($id, 'vmenu') !== false);
}
function theme_trim_long_str($str, $len = 50, $sep = ' ') {
$words = explode($sep, $str);
$wcount = count($words);
while ($wcount > 0 && theme_strlen(join($sep, array_slice($words, 0, $wcount))) > $len)
$wcount--;
if ($wcount != count($words)) {
$str = join($sep, array_slice($words, 0, $wcount)) . '…';
}
return $str;
}
function theme_get_current_url() {
$pageURL = 'http';
if (is_ssl()) {
$pageURL .= 's';
}
$pageURL .= '://' . $_SERVER['SERVER_NAME'];
if ($_SERVER['SERVER_PORT'] != '80') {
$pageURL .= ':' . $_SERVER["SERVER_PORT"];
}
$pageURL .= $_SERVER["REQUEST_URI"];
return $pageURL;
}
function theme_remove_last_slash($url) {
$len = theme_strlen($url);
if ($len > 0 && $url[$len - 1] == '/') {
$url = substr($url, 0, -1);
}
return $url;
}
function theme_is_current_url($url) {
// remove # anchor
if (strpos($url, '#')) {
$url = substr($url, 0, strpos($url, '#'));
}
$url = theme_remove_last_slash($url);
$cur = theme_remove_last_slash(theme_get_current_url());
// compare
return ($cur == $url);
}
function theme_prepare_attr($attr = array()) {
$attr = wp_parse_args($attr);
if (count($attr) == 0)
return '';
$result = '';
foreach ($attr as $name => $value) {
if (empty($name) || empty($value))
continue;
$result .= ' ' . strtolower($name) . '="' . esc_attr($value) . '"';
}
return $result;
}
function theme_highlight_excerpt($search_query, $text) {
$text = strip_tags($text);
$keys = explode(' ', $search_query);
foreach ($keys as $i => $key) {
$keys[$i] = preg_quote($keys[$i], '/');
}
$workkeys = $keys;
// Extract a fragment per keyword for at most 4 keywords. First we
// collect ranges of text around each keyword, starting/ending at
// spaces. If the sum of all fragments is too short, we look for
// second occurrences.
$ranges = array();
$included = array();
$length = 0;
while ($length < 256 && count($workkeys)) {
foreach ($workkeys as $k => $key) {
if (strlen($key) == 0) {
unset($workkeys[$k]);
continue;
}
if ($length >= 256) {
break;
}
// Remember occurrence of key so we can skip over it if more
// occurrences are desired.
if (!isset($included[$key])) {
$included[$key] = 0;
}
// NOTE: extra parameter for preg_match requires PHP 4.3.3
if (preg_match('/' . $key . '/iu', $text, $match, PREG_OFFSET_CAPTURE, $included[$key])) {
$p = $match[0][1];
$success = 0;
if (($q = strpos($text, ' ', max(0, $p - 60))) !== false &&
$q < $p) {
$end = substr($text, $p, 80);
if (($s = strrpos($end, ' ')) !== false && $s > 0) {
$ranges[$q] = $p + $s;
$length += $p + $s - $q;
$included[$key] = $p + 1;
$success = 1;
}
}
if (!$success) {
// for the case of asian text without whitespace
$q = _theme_text_find_1stbyte($text, max(0, $p - 60));
$q = _theme_text_find_delimiter($text, $q);
$s = _theme_text_find_1stbyte_reverse($text, $p + 80, $p);
$s = _theme_text_find_delimiter($text, $s);
if (($s >= $p) && ($q <= $p)) {
$ranges[$q] = $s;
$length += $s - $q;
$included[$key] = $p + 1;
} else {
unset($workkeys[$k]);
}
}
} else {
unset($workkeys[$k]);
}
}
}
// If we didn't find anything, return the beginning.
if (sizeof($ranges) == 0)
return '<p>' . _theme_text_truncate($text, 256) . ' ...</p>';
// Sort the text ranges by starting position.
ksort($ranges);
// Now we collapse overlapping text ranges into one. The sorting makes
// it O(n).
$newranges = array();
foreach ($ranges as $from2 => $to2) {
if (!isset($from1)) {
$from1 = $from2;
$to1 = $to2;
continue;
}
if ($from2 <= $to1) {
$to1 = max($to1, $to2);
} else {
$newranges[$from1] = $to1;
$from1 = $from2;
$to1 = $to2;
}
}
$newranges[$from1] = $to1;
// Fetch text
$out = array();
foreach ($newranges as $from => $to)
$out[] = substr($text, $from, $to - $from);
$text = (isset($newranges[0]) ? '' : '... ') .
implode(' ... ', $out) . ' ...';
$text = preg_replace('/(' . implode('|', $keys) . ')/iu', '<strong class="search-excerpt">\0</strong>', $text);
return "<p>$text</p>";
}
// The number of bytes used when WordPress looking around to find delimiters
// (either a whitespace or a point where ASCII and other character switched).
// This also represents the number of bytes of few characters.
define('_THEME_LEN_SEARCH', 15);
function _theme_text_find_1stbyte($string, $pos = 0, $stop = -1) {
$len = strlen($string);
if ($stop < 0 || $stop > $len) {
$stop = $len;
}
for (; $pos < $stop; $pos++) {
if ((ord($string[$pos]) < 0x80) || (ord($string[$pos]) >= 0xC0)) {
break; // find 1st byte of multi-byte characters.
}
}
return $pos;
}
function _theme_text_find_1stbyte_reverse($string, $pos = -1, $stop = 0) {
$len = strlen($string);
if ($pos < 0 || $pos >= $len) {
$pos = $len - 1;
}
for (; $pos >= $stop; $pos--) {
if ((ord($string[$pos]) < 0x80) || (ord($string[$pos]) >= 0xC0)) {
break; // find 1st byte of multi-byte characters.
}
}
return $pos;
}
function _theme_text_find_delimiter($string, $pos = 0, $min = -1, $max = -1) {
$len = strlen($string);
if ($pos == 0 || $pos < 0 || $pos >= $len) {
return $pos;
}
if ($min < 0) {
$min = max(0, $pos - _THEME_LEN_SEARCH);
}
if ($max < 0 || $max >= $len) {
$max = min($len - 1, $pos + _THEME_LEN_SEARCH);
}
if (ord($string[$pos]) < 0x80) {
// Found ASCII character at the trimming point. So, trying
// to find new trimming point around $pos. New trimming point
// should be on a whitespace or the transition from ASCII to
// other character.
$pos3 = -1;
for ($pos2 = $pos; $pos2 <= $max; $pos2++) {
if ($string[$pos2] == ' ') {
break;
} else if ($pos3 < 0 && ord($string[$pos2]) >= 0x80) {
$pos3 = $pos2;
}
}
if ($pos2 > $max && $pos3 >= 0) {
$pos2 = $pos3;
}
if ($pos2 > $max) {
$pos3 = -1;
for ($pos2 = $pos; $pos2 >= $min; $pos2--) {
if ($string[$pos2] == ' ') {
break;
} else if ($pos3 < 0 && ord($string[$pos2]) >= 0x80) {
$pos3 = $pos2 + 1;
}
}
if ($pos2 < $min && $pos3 >= 0) {
$pos2 = $pos3;
}
}
if ($pos2 <= $max && $pos2 >= $min) {
$pos = $pos2;
}
} else if ((ord($string[$pos]) >= 0x80) || (ord($string[$pos]) < 0xC0)) {
$pos = _theme_text_find_1stbyte($string, $pos, $max);
}
return $pos;
}
function _theme_text_truncate($string, $byte) {
$len = strlen($string);
if ($len <= $byte)
return $string;
$byte = _theme_text_find_1stbyte_reverse($string, $byte);
return substr($string, 0, $byte);
}