/**
* Returns matcher closure by $pattern
*
* @param array $pattern
*
* @return \Closure
*
* @see https://github.com/ptrofimov/matchmaker - ultra-fresh PHP matching functions
* @author Petr Trofimov <*****@*****.**>
*/
function key_catcher(array $pattern, $context)
{
$keys = [];
foreach ($pattern as $k => $v) {
$chars = ['?' => [0, 1], '*' => [0, PHP_INT_MAX], '!' => [1, 1]];
if (isset($chars[$last = substr($k, -1)])) {
$keys[$k = substr($k, 0, -1)] = $chars[$last];
} elseif ($last == '}') {
list($k, $range) = explode('{', $k);
$range = explode(',', rtrim($range, '}'));
$keys[$k] = count($range) == 1 ? [$range[0], $range[0]] : [$range[0] === '' ? 0 : $range[0], $range[1] === '' ? PHP_INT_MAX : $range[1]];
} else {
$keys[$k] = $chars[$k[0] == ':' ? '*' : '!'];
}
array_push($keys[$k], $v, 0);
}
return function ($key = null, $value = null) use(&$keys, $context) {
if (is_null($key)) {
foreach ($keys as $count) {
if ($count[3] < $count[0] || $count[3] > $count[1]) {
return false;
}
}
} else {
foreach ($keys as $k => &$count) {
if (catcher($key, $k)) {
if (!catches($value, $count[2], $context . '.' . $key)) {
return false;
}
$count[3]++;
}
}
}
return true;
};
}
function catches($value, $pattern, $context = '')
{
require_once 'key_catcher.php';
if (is_array($pattern)) {
if (!is_array($value) && !$value instanceof \Traversable) {
return false;
}
$keyCatcher = key_catcher($pattern, $context);
foreach ($value as $key => $item) {
if (!$keyCatcher($key, $item)) {
throw new \Exception("validation error: invalid key '" . $context . '.' . $key . "'");
}
if ($keyCatcher($key)) {
throw new \Exception("validation error: key '" . $context . '.' . $key . "' not found in schema");
}
}
if (!$keyCatcher()) {
return false;
}
} elseif (!catcher($value, $pattern)) {
return false;
}
return true;
}
<?php
def_printfer('p', "%s\n");
p(1);
catcher('warning', function () {
echo "warning!\n";
});
noise('warning');
p(2);
catcher('warning', function () {
echo "error!\n";
});
noise('warning');
p(3);
?>
---
1
warning!
2
error!
3
<?php
def_printfer('p', "%s\n");
p(1);
noise('warning');
p(2);
catcher('warning', function () {
echo "warning!\n";
});
noise('warning');
p(3);
?>
---
1
2
warning!
3
<?php
catcher('warning', function ($one, $two, $three) {
echo $one . $two . $three;
});
noise('warning', 1, 2, 3);
?>
---
123
