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<?php
namespace kch42\ste;
class STEStandardLibrary {
static public function _register_lib($ste) {
foreach(get_class_methods(__CLASS__) as $method) {
if($method[0] != "_") {
$ste->register_tag($method, array(__CLASS__, $method));
}
}
}
static public function escape($ste, $params, $sub) {
if($ste->evalbool(@$params["lines"])) {
return nl2br(htmlspecialchars(str_replace("\r\n", "\n", $sub($ste))));
} else {
return htmlspecialchars($sub($ste));
}
}
static public function strlen($ste, $params, $sub) {
return strlen($sub($ste));
}
static public function arraylen($ste, $params, $sub) {
if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:arraylen>.");
}
$a = $ste->get_var_by_name($params["array"], false);
return (is_array($a)) ? count($a) : "";
}
static public function inc($ste, $params, $sub) {
if(empty($params["var"])) {
throw new RuntimeError("Missing var parameter in <ste:inc>.");
}
$ref = &$ste->get_var_reference($params["var"], true);
$ref++;
}
static public function dec($ste, $params, $sub) {
if(empty($params["var"])) {
throw new RuntimeError("Missing var parameter in <ste:dec>.");
}
$ref = &$ste->get_var_reference($params["var"], true);
$ref--;
}
static public function date($ste, $params, $sub) {
return @strftime($sub($ste), empty($params["timestamp"]) ? @time() : (int) $params["timestamp"]);
}
static public function in_array($ste, $params, $sub) {
if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:in_array>.");
}
$ar = &$ste->get_var_reference($params["array"], false);
if(!is_array($ar)) {
return "";
}
return in_array($sub($ste), $ar) ? "y" : "";
}
static public function join($ste, $params, $sub) {
if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:join>.");
}
return implode($sub($ste), $ste->get_var_by_name($params["array"]));
}
static public function split($ste, $params, $sub) {
if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:split>.");
}
if(empty($params["delim"])) {
throw new RuntimeError("Missing delim parameter in <ste:split>.");
}
$ste->set_var_by_name($params["array"], explode($params["delim"], $sub($ste)));
}
static public function array_add($ste, $params, $sub) {
if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:array_add>.");
}
$ar = &$ste->get_var_reference($params["array"], true);
if(empty($params["key"])) {
$ar[] = $sub($ste);
} else {
$ar[$params["key"]] = $sub($ste);
}
}
static public function array_filter($ste, $params, $sub)
{
if(empty($params["array"])) {
throw new RuntimeError("Missing array parameter in <ste:array_filter>.");
}
$ar = $ste->get_var_by_name($params["array"]);
if(!is_array($ar)) {
throw new RuntimeError("Variable at 'array' is not an array.");
}
$keys = array_keys($ar);
if(!empty($params["keep_by_keys"])) {
$keep_by_keys = &$ste->get_var_reference($params["keep_by_keys"], false);
if(!is_array($keep_by_keys)) {
throw new RuntimeError("Variable at 'keep_by_keys' is not an array.");
}
$delkeys = array_filter($keys, function($k) use ($keep_by_keys) { return !in_array($k, $keep_by_keys); });
foreach($delkeys as $dk) {
unset($ar[$dk]);
}
$keys = array_keys($ar);
}
if(!empty($params["keep_by_values"])) {
$keep_by_values = &$ste->get_var_reference($params["keep_by_values"], false);
if(!is_array($keep_by_values)) {
throw new RuntimeError("Variable at 'keep_by_values' is not an array.");
}
$ar = array_filter($ar, function($v) use ($keep_by_values) { return in_array($v, $keep_by_values); });
$keys = array_keys($ar);
}
if(!empty($params["delete_by_keys"])) {
$delete_by_keys = &$ste->get_var_reference($params["delete_by_keys"], false);
if(!is_array($delete_by_keys)) {
throw new RuntimeError("Variable at 'delete_by_keys' is not an array.");
}
$delkeys = array_filter($keys, function($k) use ($delete_by_keys) { return in_array($k, $delete_by_keys); });
foreach($delkeys as $dk) {
unset($ar[$dk]);
}
$keys = array_keys($ar);
}
if(!empty($params["delete_by_values"])) {
$delete_by_values = &$ste->get_var_reference($params["delete_by_values"], false);
if(!is_array($delete_by_values)) {
throw new RuntimeError("Variable at 'delete_by_values' is not an array.");
}
$ar = array_filter($ar, function($v) use ($delete_by_values) { return !in_array($v, $delete_by_values); });
$keys = array_keys($ar);
}
$ste->set_var_by_name($params["array"], $ar);
}
}
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