121 lines
3.1 KiB
PHP
121 lines
3.1 KiB
PHP
<?php
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/* Flatrr | https://gitlab.com/byjoby/flatrr | MIT License */
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namespace Flatrr;
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class SelfReferencingFlatArray extends FlatArray
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{
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public function get(string $name = null, bool $raw = false, $unescape = true)
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{
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$out = parent::get($name);
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if ($raw) {
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return $out;
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}
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$out = $this->filter($out);
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if ($unescape) {
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$out = $this->unescape($out);
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}
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return $out;
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}
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public function set(?string $name, $value)
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{
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return $this->filter(parent::set($name,$value));
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}
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public function push(?string $name, $value)
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{
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return $this->filter(parent::push($name,$value));
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}
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public function pop(?string $name)
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{
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return $this->filter(parent::pop($name));
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}
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public function unshift(?string $name, $value)
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{
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return $this->filter(parent::unshift($name,$value));
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}
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public function shift(?string $name)
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{
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return $this->filter(parent::shift($name));
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}
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public function rewind()
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{
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return $this->filter(parent::rewind());
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}
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public function next()
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{
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return $this->filter(parent::next());
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}
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public function current()
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{
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return $this->filter(parent::current());
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}
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protected function unescape($value)
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{
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//map this function onto array values
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if (is_array($value)) {
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return array_map(
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[$this, 'unescape'],
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$value
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);
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}
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//search/replace on string values
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if (is_string($value)) {
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//unescape references
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$value = preg_replace(
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'/\$\\\?\{([^\}\\\]+)\\\?\}/S',
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'\${$1}',
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$value
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);
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//return
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return $value;
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}
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//fall back to just returning value, it's some other datatype
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return $value;
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}
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/**
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* Recursively replace ${var/name} type strings in string values with
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*/
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protected function filter($value)
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{
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//map this function onto array values
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if (is_array($value)) {
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return array_map(
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[$this, 'filter'],
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$value
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);
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}
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//search/replace on string values
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if (is_string($value) && strpos($value, '${') !== false) {
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//search for valid replacements
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return preg_replace_callback(
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//search for things like ${var/name}, escape with \ before last brace
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'/\$\{([^\}]*[^\.\\\])\}/S',
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//replace match with value from $this if it exists
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[$this, 'filter_regex'],
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//applied to $value
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$value
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);
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}
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//fall back to just returning value, it's some other datatype
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return $value;
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}
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protected function filter_regex($matches)
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{
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if (null !== $value = $this->get($matches[1], false, false)) {
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if (!is_array($value)) {
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return $value;
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}
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}
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return $matches[0];
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}
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}
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