%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* This file is part of the Nette Framework (https://nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare (strict_types=1);
namespace RectorPrefix20211231\Nette\Neon;
/** @internal */
final class Parser
{
/** @var TokenStream */
private $tokens;
public function parse(\RectorPrefix20211231\Nette\Neon\TokenStream $tokens) : \RectorPrefix20211231\Nette\Neon\Node
{
$this->tokens = $tokens;
while ($this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
}
$node = $this->parseBlock($this->tokens->getIndentation());
while ($this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
}
if ($this->tokens->isNext()) {
$this->tokens->error();
}
return $node;
}
private function parseBlock(string $indent, bool $onlyBullets = \false) : \RectorPrefix20211231\Nette\Neon\Node
{
$res = new \RectorPrefix20211231\Nette\Neon\Node\BlockArrayNode($indent, $this->tokens->getPos());
$keyCheck = [];
loop:
$item = new \RectorPrefix20211231\Nette\Neon\Node\ArrayItemNode($this->tokens->getPos());
if ($this->tokens->consume('-')) {
// continue
} elseif (!$this->tokens->isNext() || $onlyBullets) {
return $res->items ? $res : new \RectorPrefix20211231\Nette\Neon\Node\LiteralNode(null, $this->tokens->getPos());
} else {
$value = $this->parseValue();
if ($this->tokens->consume(':', '=')) {
$this->checkArrayKey($value, $keyCheck);
$item->key = $value;
} else {
if ($res->items) {
$this->tokens->error();
}
return $value;
}
}
$res->items[] = $item;
$item->value = new \RectorPrefix20211231\Nette\Neon\Node\LiteralNode(null, $this->tokens->getPos());
if ($this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
while ($this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
}
$nextIndent = $this->tokens->getIndentation();
if (\strncmp($nextIndent, $indent, \min(\strlen($nextIndent), \strlen($indent)))) {
$this->tokens->error('Invalid combination of tabs and spaces');
} elseif (\strlen($nextIndent) > \strlen($indent)) {
// open new block
$item->value = $this->parseBlock($nextIndent);
} elseif (\strlen($nextIndent) < \strlen($indent)) {
// close block
return $res;
} elseif ($item->key !== null && $this->tokens->isNext('-')) {
// special dash subblock
$item->value = $this->parseBlock($indent, \true);
}
} elseif ($item->key === null) {
$item->value = $this->parseBlock($indent . ' ');
// open new block after dash
} elseif ($this->tokens->isNext()) {
$item->value = $this->parseValue();
if ($this->tokens->isNext() && !$this->tokens->isNext(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
$this->tokens->error();
}
}
if ($item->value instanceof \RectorPrefix20211231\Nette\Neon\Node\BlockArrayNode) {
$item->value->indentation = \substr($item->value->indentation, \strlen($indent));
}
$res->endPos = $item->endPos = $item->value->endPos;
while ($this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
}
if (!$this->tokens->isNext()) {
return $res;
}
$nextIndent = $this->tokens->getIndentation();
if (\strncmp($nextIndent, $indent, \min(\strlen($nextIndent), \strlen($indent)))) {
$this->tokens->error('Invalid combination of tabs and spaces');
} elseif (\strlen($nextIndent) > \strlen($indent)) {
$this->tokens->error('Bad indentation');
} elseif (\strlen($nextIndent) < \strlen($indent)) {
// close block
return $res;
}
goto loop;
}
private function parseValue() : \RectorPrefix20211231\Nette\Neon\Node
{
if ($token = $this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::STRING)) {
try {
$node = new \RectorPrefix20211231\Nette\Neon\Node\StringNode(\RectorPrefix20211231\Nette\Neon\Node\StringNode::parse($token->value), $this->tokens->getPos() - 1);
} catch (\RectorPrefix20211231\Nette\Neon\Exception $e) {
$this->tokens->error($e->getMessage(), $this->tokens->getPos() - 1);
}
} elseif ($token = $this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::LITERAL)) {
$pos = $this->tokens->getPos() - 1;
$node = new \RectorPrefix20211231\Nette\Neon\Node\LiteralNode(\RectorPrefix20211231\Nette\Neon\Node\LiteralNode::parse($token->value, $this->tokens->isNext(':', '=')), $pos);
} elseif ($this->tokens->isNext('[', '(', '{')) {
$node = $this->parseBraces();
} else {
$this->tokens->error();
}
return $this->parseEntity($node);
}
private function parseEntity(\RectorPrefix20211231\Nette\Neon\Node $node) : \RectorPrefix20211231\Nette\Neon\Node
{
if (!$this->tokens->isNext('(')) {
return $node;
}
$attributes = $this->parseBraces();
$entities[] = new \RectorPrefix20211231\Nette\Neon\Node\EntityNode($node, $attributes->items, $node->startPos, $attributes->endPos);
while ($token = $this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::LITERAL)) {
$valueNode = new \RectorPrefix20211231\Nette\Neon\Node\LiteralNode(\RectorPrefix20211231\Nette\Neon\Node\LiteralNode::parse($token->value), $this->tokens->getPos() - 1);
if ($this->tokens->isNext('(')) {
$attributes = $this->parseBraces();
$entities[] = new \RectorPrefix20211231\Nette\Neon\Node\EntityNode($valueNode, $attributes->items, $valueNode->startPos, $attributes->endPos);
} else {
$entities[] = new \RectorPrefix20211231\Nette\Neon\Node\EntityNode($valueNode, [], $valueNode->startPos);
break;
}
}
return \count($entities) === 1 ? $entities[0] : new \RectorPrefix20211231\Nette\Neon\Node\EntityChainNode($entities, $node->startPos, \end($entities)->endPos);
}
private function parseBraces() : \RectorPrefix20211231\Nette\Neon\Node\InlineArrayNode
{
$token = $this->tokens->consume();
$endBrace = ['[' => ']', '{' => '}', '(' => ')'][$token->value];
$res = new \RectorPrefix20211231\Nette\Neon\Node\InlineArrayNode($token->value, $this->tokens->getPos() - 1);
$keyCheck = [];
loop:
while ($this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
}
if ($this->tokens->consume($endBrace)) {
$res->endPos = $this->tokens->getPos() - 1;
return $res;
}
$res->items[] = $item = new \RectorPrefix20211231\Nette\Neon\Node\ArrayItemNode($this->tokens->getPos());
$value = $this->parseValue();
if ($this->tokens->consume(':', '=')) {
$this->checkArrayKey($value, $keyCheck);
$item->key = $value;
$item->value = $this->tokens->isNext(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE, ',', $endBrace) ? new \RectorPrefix20211231\Nette\Neon\Node\LiteralNode(null, $this->tokens->getPos()) : $this->parseValue();
} else {
$item->value = $value;
}
$item->endPos = $item->value->endPos;
if ($this->tokens->consume(',', \RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
goto loop;
}
while ($this->tokens->consume(\RectorPrefix20211231\Nette\Neon\Token::NEWLINE)) {
}
if (!$this->tokens->isNext($endBrace)) {
$this->tokens->error();
}
goto loop;
}
private function checkArrayKey(\RectorPrefix20211231\Nette\Neon\Node $key, array &$arr) : void
{
if (!$key instanceof \RectorPrefix20211231\Nette\Neon\Node\StringNode && !$key instanceof \RectorPrefix20211231\Nette\Neon\Node\LiteralNode || !\is_scalar($key->value)) {
$this->tokens->error('Unacceptable key', $key->startPos);
}
$k = (string) $key->value;
if (\array_key_exists($k, $arr)) {
$this->tokens->error("Duplicated key '{$k}'", $key->startPos);
}
$arr[$k] = \true;
}
}
Zerion Mini Shell 1.0