function mb_eaw_wrap($string, $width = 75, $break = "\n", $table = null, $encoding = null)
{
if (func_num_args() < 5) {
$encoding = mb_internal_encoding();
}
$len = mb_strlen($string, $encoding);
if ($len === false) {
return false;
}
$line = '';
$lineLen = 0;
$retval = '';
for ($start = 0; $start < $len; ++$start) {
$char = mb_substr($string, $start, 1, $encoding);
$charwidth = mb_eaw_strwidth($char, $table, $encoding);
if ($lineLen + $charwidth <= $width) {
$line .= $char;
$lineLen += $charwidth;
} else {
$retval .= $line . $break;
$line = $char;
$lineLen = $charwidth;
}
}
if ($line !== '') {
return $retval . $line . $break;
}
return $retval;
}
function mb_eaw_strimwidth($str, $start, $width, $trimmarker = '', array $table = null, $encoding = null)
{
if ($width < 0) {
trigger_error('Width is negative value', E_USER_WARNING);
return false;
}
if (func_num_args() < 6) {
$encoding = mb_internal_encoding();
}
$strLen = mb_strlen($str, $encoding);
if ($strLen === false) {
return false;
}
if ($start < 0 || $start > $strLen) {
trigger_error('Start position is out of range', E_USER_WARNING);
return false;
}
$str = mb_substr($str, $start, $strLen, $encoding);
if ($str === false) {
return false;
}
$strLen -= $start;
$eawa = mb_eaw_strwidth_array($str, $table, $encoding);
if ($eawa === false) {
return false;
}
if (array_sum($eawa) <= $width) {
return $str;
}
$eawa_marker = mb_eaw_strwidth($trimmarker, $table, $encoding);
if ($eawa_marker === false) {
return false;
}
if ($eawa_marker > $width) {
trigger_error('Trimmarker is out of range', E_USER_WARNING);
return false;
}
$width -= $eawa_marker;
$charLen = 0;
for ($start = 0; $start < $strLen; ++$start) {
if ($width - $eawa[$start] < 0) {
break;
}
++$charLen;
$width -= $eawa[$start];
}
return mb_substr($str, 0, $charLen, $encoding) . $trimmarker;
}
function mb_eaw_str_pad($mbstring, $pad_length, $pad_sbstring = ' ', $pad_type = STR_PAD_RIGHT, array $table = null, $encoding = null)
{
$eaw = func_num_args() < 6 ? mb_eaw_strwidth($mbstring, $table) : mb_eaw_strwidth($mbstring, $table, $encoding);
return str_pad($mbstring, $pad_length + (strlen(bin2hex($mbstring)) / 2 - $eaw), $pad_sbstring, $pad_type);
}
