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f010267a7c
6b69971dfc [NodeTypeCorrector] Directly use StringType on Intersection of strings on AccessoryNonEmptyStringTypeCorrector (#5933)
1063 lines
49 KiB
PHP
1063 lines
49 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace RectorPrefix202406\Symfony\Component\Yaml;
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use RectorPrefix202406\Symfony\Component\Yaml\Exception\ParseException;
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use RectorPrefix202406\Symfony\Component\Yaml\Tag\TaggedValue;
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/**
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* Parser parses YAML strings to convert them to PHP arrays.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*
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* @final
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*/
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class Parser
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{
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public const TAG_PATTERN = '(?P<tag>![\\w!.\\/:-]+)';
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public const BLOCK_SCALAR_HEADER_PATTERN = '(?P<separator>\\||>)(?P<modifiers>\\+|\\-|\\d+|\\+\\d+|\\-\\d+|\\d+\\+|\\d+\\-)?(?P<comments> +#.*)?';
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public const REFERENCE_PATTERN = '#^&(?P<ref>[^ ]++) *+(?P<value>.*)#u';
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/**
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* @var string|null
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*/
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private $filename;
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/**
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* @var int
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*/
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private $offset = 0;
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/**
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* @var int
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*/
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private $numberOfParsedLines = 0;
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/**
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* @var int|null
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*/
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private $totalNumberOfLines;
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/**
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* @var mixed[]
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*/
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private $lines = [];
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/**
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* @var int
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*/
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private $currentLineNb = -1;
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/**
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* @var string
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*/
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private $currentLine = '';
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/**
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* @var mixed[]
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*/
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private $refs = [];
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/**
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* @var mixed[]
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*/
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private $skippedLineNumbers = [];
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/**
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* @var mixed[]
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*/
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private $locallySkippedLineNumbers = [];
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/**
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* @var mixed[]
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*/
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private $refsBeingParsed = [];
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/**
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* Parses a YAML file into a PHP value.
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*
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* @param string $filename The path to the YAML file to be parsed
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* @param int $flags A bit field of Yaml::PARSE_* constants to customize the YAML parser behavior
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*
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* @throws ParseException If the file could not be read or the YAML is not valid
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* @return mixed
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*/
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public function parseFile(string $filename, int $flags = 0)
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{
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if (!\is_file($filename)) {
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throw new ParseException(\sprintf('File "%s" does not exist.', $filename));
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}
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if (!\is_readable($filename)) {
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throw new ParseException(\sprintf('File "%s" cannot be read.', $filename));
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}
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$this->filename = $filename;
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try {
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return $this->parse(\file_get_contents($filename), $flags);
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} finally {
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$this->filename = null;
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}
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}
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/**
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* Parses a YAML string to a PHP value.
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*
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* @param string $value A YAML string
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* @param int $flags A bit field of Yaml::PARSE_* constants to customize the YAML parser behavior
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*
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* @throws ParseException If the YAML is not valid
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* @return mixed
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*/
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public function parse(string $value, int $flags = 0)
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{
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if (\false === \preg_match('//u', $value)) {
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throw new ParseException('The YAML value does not appear to be valid UTF-8.', -1, null, $this->filename);
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}
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$this->refs = [];
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try {
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$data = $this->doParse($value, $flags);
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} finally {
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$this->refsBeingParsed = [];
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$this->offset = 0;
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$this->lines = [];
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$this->currentLine = '';
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$this->numberOfParsedLines = 0;
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$this->refs = [];
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$this->skippedLineNumbers = [];
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$this->locallySkippedLineNumbers = [];
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$this->totalNumberOfLines = null;
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}
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return $data;
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}
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/**
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* @return mixed
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*/
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private function doParse(string $value, int $flags)
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{
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$this->currentLineNb = -1;
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$this->currentLine = '';
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$value = $this->cleanup($value);
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$this->lines = \explode("\n", $value);
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$this->numberOfParsedLines = \count($this->lines);
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$this->locallySkippedLineNumbers = [];
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$this->totalNumberOfLines = $this->totalNumberOfLines ?? $this->numberOfParsedLines;
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if (!$this->moveToNextLine()) {
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return null;
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}
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$data = [];
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$context = null;
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$allowOverwrite = \false;
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while ($this->isCurrentLineEmpty()) {
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if (!$this->moveToNextLine()) {
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return null;
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}
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}
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// Resolves the tag and returns if end of the document
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if (null !== ($tag = $this->getLineTag($this->currentLine, $flags, \false)) && !$this->moveToNextLine()) {
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return new TaggedValue($tag, '');
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}
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do {
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if ($this->isCurrentLineEmpty()) {
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continue;
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}
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// tab?
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if ("\t" === $this->currentLine[0]) {
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throw new ParseException('A YAML file cannot contain tabs as indentation.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
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Inline::initialize($flags, $this->getRealCurrentLineNb(), $this->filename);
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$isRef = $mergeNode = \false;
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if ('-' === $this->currentLine[0] && self::preg_match('#^\\-((?P<leadspaces>\\s+)(?P<value>.+))?$#u', \rtrim($this->currentLine), $values)) {
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if ($context && 'mapping' == $context) {
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throw new ParseException('You cannot define a sequence item when in a mapping.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
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$context = 'sequence';
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if (isset($values['value']) && '&' === $values['value'][0] && self::preg_match(self::REFERENCE_PATTERN, $values['value'], $matches)) {
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$isRef = $matches['ref'];
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$this->refsBeingParsed[] = $isRef;
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$values['value'] = $matches['value'];
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}
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if (isset($values['value'][1]) && '?' === $values['value'][0] && ' ' === $values['value'][1]) {
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throw new ParseException('Complex mappings are not supported.', $this->getRealCurrentLineNb() + 1, $this->currentLine);
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}
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// array
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if (isset($values['value']) && \strncmp(\ltrim($values['value'], ' '), '-', \strlen('-')) === 0) {
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// Inline first child
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$currentLineNumber = $this->getRealCurrentLineNb();
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$sequenceIndentation = \strlen($values['leadspaces']) + 1;
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$sequenceYaml = \substr($this->currentLine, $sequenceIndentation);
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$sequenceYaml .= "\n" . $this->getNextEmbedBlock($sequenceIndentation, \true);
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$data[] = $this->parseBlock($currentLineNumber, \rtrim($sequenceYaml), $flags);
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} elseif (!isset($values['value']) || '' == \trim($values['value'], ' ') || \strncmp(\ltrim($values['value'], ' '), '#', \strlen('#')) === 0) {
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$data[] = $this->parseBlock($this->getRealCurrentLineNb() + 1, $this->getNextEmbedBlock(null, \true) ?? '', $flags);
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} elseif (null !== ($subTag = $this->getLineTag(\ltrim($values['value'], ' '), $flags))) {
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$data[] = new TaggedValue($subTag, $this->parseBlock($this->getRealCurrentLineNb() + 1, $this->getNextEmbedBlock(null, \true), $flags));
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} else {
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if (isset($values['leadspaces']) && ('!' === $values['value'][0] || self::preg_match('#^(?P<key>' . Inline::REGEX_QUOTED_STRING . '|[^ \'"\\{\\[].*?) *\\:(\\s+(?P<value>.+?))?\\s*$#u', $this->trimTag($values['value']), $matches))) {
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$block = $values['value'];
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if ($this->isNextLineIndented() || isset($matches['value']) && '>-' === $matches['value']) {
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$block .= "\n" . $this->getNextEmbedBlock($this->getCurrentLineIndentation() + \strlen($values['leadspaces']) + 1);
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}
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$data[] = $this->parseBlock($this->getRealCurrentLineNb(), $block, $flags);
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} else {
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$data[] = $this->parseValue($values['value'], $flags, $context);
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}
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}
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if ($isRef) {
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$this->refs[$isRef] = \end($data);
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\array_pop($this->refsBeingParsed);
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}
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} elseif (self::preg_match('#^(?P<key>(?:![^\\s]++\\s++)?(?:' . Inline::REGEX_QUOTED_STRING . '|(?:!?!php/const:)?[^ \'"\\[\\{!].*?)) *\\:(( |\\t)++(?P<value>.+))?$#u', \rtrim($this->currentLine), $values) && (\strpos($values['key'], ' #') === \false || \in_array($values['key'][0], ['"', "'"]))) {
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if (\strncmp($values['key'], '!php/const:', \strlen('!php/const:')) === 0) {
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trigger_deprecation('symfony/yaml', '6.2', 'YAML syntax for key "%s" is deprecated and replaced by "!php/const %s".', $values['key'], \substr($values['key'], 11));
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}
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if ($context && 'sequence' == $context) {
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throw new ParseException('You cannot define a mapping item when in a sequence.', $this->currentLineNb + 1, $this->currentLine, $this->filename);
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}
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$context = 'mapping';
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try {
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$key = Inline::parseScalar($values['key']);
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} catch (ParseException $e) {
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$e->setParsedLine($this->getRealCurrentLineNb() + 1);
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$e->setSnippet($this->currentLine);
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throw $e;
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}
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if (!\is_string($key) && !\is_int($key)) {
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throw new ParseException((\is_numeric($key) ? 'Numeric' : 'Non-string') . ' keys are not supported. Quote your evaluable mapping keys instead.', $this->getRealCurrentLineNb() + 1, $this->currentLine);
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}
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// Convert float keys to strings, to avoid being converted to integers by PHP
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if (\is_float($key)) {
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$key = (string) $key;
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}
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if ('<<' === $key && (!isset($values['value']) || '&' !== $values['value'][0] || !self::preg_match('#^&(?P<ref>[^ ]+)#u', $values['value'], $refMatches))) {
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$mergeNode = \true;
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$allowOverwrite = \true;
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if (isset($values['value'][0]) && '*' === $values['value'][0]) {
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$refName = \substr(\rtrim($values['value']), 1);
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if (!\array_key_exists($refName, $this->refs)) {
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if (\false !== ($pos = \array_search($refName, $this->refsBeingParsed, \true))) {
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throw new ParseException(\sprintf('Circular reference [%s] detected for reference "%s".', \implode(', ', \array_merge(\array_slice($this->refsBeingParsed, $pos), [$refName])), $refName), $this->currentLineNb + 1, $this->currentLine, $this->filename);
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}
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throw new ParseException(\sprintf('Reference "%s" does not exist.', $refName), $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
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$refValue = $this->refs[$refName];
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if (Yaml::PARSE_OBJECT_FOR_MAP & $flags && $refValue instanceof \stdClass) {
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$refValue = (array) $refValue;
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}
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if (!\is_array($refValue)) {
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throw new ParseException('YAML merge keys used with a scalar value instead of an array.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
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$data += $refValue;
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// array union
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} else {
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if (isset($values['value']) && '' !== $values['value']) {
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$value = $values['value'];
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} else {
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$value = $this->getNextEmbedBlock();
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}
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$parsed = $this->parseBlock($this->getRealCurrentLineNb() + 1, $value, $flags);
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if (Yaml::PARSE_OBJECT_FOR_MAP & $flags && $parsed instanceof \stdClass) {
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$parsed = (array) $parsed;
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}
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if (!\is_array($parsed)) {
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throw new ParseException('YAML merge keys used with a scalar value instead of an array.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
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if (isset($parsed[0])) {
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// If the value associated with the merge key is a sequence, then this sequence is expected to contain mapping nodes
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// and each of these nodes is merged in turn according to its order in the sequence. Keys in mapping nodes earlier
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// in the sequence override keys specified in later mapping nodes.
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foreach ($parsed as $parsedItem) {
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if (Yaml::PARSE_OBJECT_FOR_MAP & $flags && $parsedItem instanceof \stdClass) {
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$parsedItem = (array) $parsedItem;
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}
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if (!\is_array($parsedItem)) {
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throw new ParseException('Merge items must be arrays.', $this->getRealCurrentLineNb() + 1, $parsedItem, $this->filename);
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}
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$data += $parsedItem;
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// array union
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}
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} else {
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// If the value associated with the key is a single mapping node, each of its key/value pairs is inserted into the
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// current mapping, unless the key already exists in it.
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$data += $parsed;
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// array union
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}
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}
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} elseif ('<<' !== $key && isset($values['value']) && '&' === $values['value'][0] && self::preg_match(self::REFERENCE_PATTERN, $values['value'], $matches)) {
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$isRef = $matches['ref'];
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$this->refsBeingParsed[] = $isRef;
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$values['value'] = $matches['value'];
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}
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$subTag = null;
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if ($mergeNode) {
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// Merge keys
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} elseif (!isset($values['value']) || '' === $values['value'] || \strncmp($values['value'], '#', \strlen('#')) === 0 || null !== ($subTag = $this->getLineTag($values['value'], $flags)) || '<<' === $key) {
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// hash
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// if next line is less indented or equal, then it means that the current value is null
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if (!$this->isNextLineIndented() && !$this->isNextLineUnIndentedCollection()) {
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// Spec: Keys MUST be unique; first one wins.
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// But overwriting is allowed when a merge node is used in current block.
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if ($allowOverwrite || !isset($data[$key])) {
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if (null !== $subTag) {
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$data[$key] = new TaggedValue($subTag, '');
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} else {
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$data[$key] = null;
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}
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} else {
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throw new ParseException(\sprintf('Duplicate key "%s" detected.', $key), $this->getRealCurrentLineNb() + 1, $this->currentLine);
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}
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} else {
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// remember the parsed line number here in case we need it to provide some contexts in error messages below
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$realCurrentLineNbKey = $this->getRealCurrentLineNb();
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$value = $this->parseBlock($this->getRealCurrentLineNb() + 1, $this->getNextEmbedBlock(), $flags);
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if ('<<' === $key) {
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$this->refs[$refMatches['ref']] = $value;
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if (Yaml::PARSE_OBJECT_FOR_MAP & $flags && $value instanceof \stdClass) {
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$value = (array) $value;
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}
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$data += $value;
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} elseif ($allowOverwrite || !isset($data[$key])) {
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// Spec: Keys MUST be unique; first one wins.
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// But overwriting is allowed when a merge node is used in current block.
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if (null !== $subTag) {
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$data[$key] = new TaggedValue($subTag, $value);
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} else {
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$data[$key] = $value;
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}
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} else {
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throw new ParseException(\sprintf('Duplicate key "%s" detected.', $key), $realCurrentLineNbKey + 1, $this->currentLine);
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}
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}
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} else {
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$value = $this->parseValue(\rtrim($values['value']), $flags, $context);
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// Spec: Keys MUST be unique; first one wins.
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// But overwriting is allowed when a merge node is used in current block.
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if ($allowOverwrite || !isset($data[$key])) {
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$data[$key] = $value;
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} else {
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throw new ParseException(\sprintf('Duplicate key "%s" detected.', $key), $this->getRealCurrentLineNb() + 1, $this->currentLine);
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}
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}
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if ($isRef) {
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$this->refs[$isRef] = $data[$key];
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\array_pop($this->refsBeingParsed);
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}
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} elseif ('"' === $this->currentLine[0] || "'" === $this->currentLine[0]) {
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if (null !== $context) {
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throw new ParseException('Unable to parse.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
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try {
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return Inline::parse($this->lexInlineQuotedString(), $flags, $this->refs);
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} catch (ParseException $e) {
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$e->setParsedLine($this->getRealCurrentLineNb() + 1);
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$e->setSnippet($this->currentLine);
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throw $e;
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}
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} elseif ('{' === $this->currentLine[0]) {
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if (null !== $context) {
|
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throw new ParseException('Unable to parse.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
|
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try {
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$parsedMapping = Inline::parse($this->lexInlineMapping(), $flags, $this->refs);
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while ($this->moveToNextLine()) {
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if (!$this->isCurrentLineEmpty()) {
|
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throw new ParseException('Unable to parse.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
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}
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return $parsedMapping;
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} catch (ParseException $e) {
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$e->setParsedLine($this->getRealCurrentLineNb() + 1);
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$e->setSnippet($this->currentLine);
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throw $e;
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}
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} elseif ('[' === $this->currentLine[0]) {
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if (null !== $context) {
|
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throw new ParseException('Unable to parse.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
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}
|
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try {
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$parsedSequence = Inline::parse($this->lexInlineSequence(), $flags, $this->refs);
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while ($this->moveToNextLine()) {
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if (!$this->isCurrentLineEmpty()) {
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throw new ParseException('Unable to parse.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
|
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}
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}
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return $parsedSequence;
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} catch (ParseException $e) {
|
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$e->setParsedLine($this->getRealCurrentLineNb() + 1);
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$e->setSnippet($this->currentLine);
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throw $e;
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}
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} else {
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// multiple documents are not supported
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if ('---' === $this->currentLine) {
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throw new ParseException('Multiple documents are not supported.', $this->currentLineNb + 1, $this->currentLine, $this->filename);
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}
|
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if ($deprecatedUsage = isset($this->currentLine[1]) && '?' === $this->currentLine[0] && ' ' === $this->currentLine[1]) {
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throw new ParseException('Complex mappings are not supported.', $this->getRealCurrentLineNb() + 1, $this->currentLine);
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}
|
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// 1-liner optionally followed by newline(s)
|
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if (\is_string($value) && $this->lines[0] === \trim($value)) {
|
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try {
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$value = Inline::parse($this->lines[0], $flags, $this->refs);
|
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} catch (ParseException $e) {
|
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$e->setParsedLine($this->getRealCurrentLineNb() + 1);
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$e->setSnippet($this->currentLine);
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throw $e;
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}
|
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return $value;
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}
|
|
// try to parse the value as a multi-line string as a last resort
|
|
if (0 === $this->currentLineNb) {
|
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$previousLineWasNewline = \false;
|
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$previousLineWasTerminatedWithBackslash = \false;
|
|
$value = '';
|
|
foreach ($this->lines as $line) {
|
|
$trimmedLine = \trim($line);
|
|
if ('#' === ($trimmedLine[0] ?? '')) {
|
|
continue;
|
|
}
|
|
// If the indentation is not consistent at offset 0, it is to be considered as a ParseError
|
|
if (0 === $this->offset && !$deprecatedUsage && isset($line[0]) && ' ' === $line[0]) {
|
|
throw new ParseException('Unable to parse.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
|
|
}
|
|
if (\strpos($line, ': ') !== \false) {
|
|
throw new ParseException('Mapping values are not allowed in multi-line blocks.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
|
|
}
|
|
if ('' === $trimmedLine) {
|
|
$value .= "\n";
|
|
} elseif (!$previousLineWasNewline && !$previousLineWasTerminatedWithBackslash) {
|
|
$value .= ' ';
|
|
}
|
|
if ('' !== $trimmedLine && \substr_compare($line, '\\', -\strlen('\\')) === 0) {
|
|
$value .= \ltrim(\substr($line, 0, -1));
|
|
} elseif ('' !== $trimmedLine) {
|
|
$value .= $trimmedLine;
|
|
}
|
|
if ('' === $trimmedLine) {
|
|
$previousLineWasNewline = \true;
|
|
$previousLineWasTerminatedWithBackslash = \false;
|
|
} elseif (\substr_compare($line, '\\', -\strlen('\\')) === 0) {
|
|
$previousLineWasNewline = \false;
|
|
$previousLineWasTerminatedWithBackslash = \true;
|
|
} else {
|
|
$previousLineWasNewline = \false;
|
|
$previousLineWasTerminatedWithBackslash = \false;
|
|
}
|
|
}
|
|
try {
|
|
return Inline::parse(\trim($value));
|
|
} catch (ParseException $exception) {
|
|
// fall-through to the ParseException thrown below
|
|
}
|
|
}
|
|
throw new ParseException('Unable to parse.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
|
|
}
|
|
} while ($this->moveToNextLine());
|
|
if (null !== $tag) {
|
|
$data = new TaggedValue($tag, $data);
|
|
}
|
|
if (Yaml::PARSE_OBJECT_FOR_MAP & $flags && 'mapping' === $context && !\is_object($data)) {
|
|
$object = new \stdClass();
|
|
foreach ($data as $key => $value) {
|
|
$object->{$key} = $value;
|
|
}
|
|
$data = $object;
|
|
}
|
|
return empty($data) ? null : $data;
|
|
}
|
|
/**
|
|
* @return mixed
|
|
*/
|
|
private function parseBlock(int $offset, string $yaml, int $flags)
|
|
{
|
|
$skippedLineNumbers = $this->skippedLineNumbers;
|
|
foreach ($this->locallySkippedLineNumbers as $lineNumber) {
|
|
if ($lineNumber < $offset) {
|
|
continue;
|
|
}
|
|
$skippedLineNumbers[] = $lineNumber;
|
|
}
|
|
$parser = new self();
|
|
$parser->offset = $offset;
|
|
$parser->totalNumberOfLines = $this->totalNumberOfLines;
|
|
$parser->skippedLineNumbers = $skippedLineNumbers;
|
|
$parser->refs =& $this->refs;
|
|
$parser->refsBeingParsed = $this->refsBeingParsed;
|
|
return $parser->doParse($yaml, $flags);
|
|
}
|
|
/**
|
|
* Returns the current line number (takes the offset into account).
|
|
*
|
|
* @internal
|
|
*/
|
|
public function getRealCurrentLineNb() : int
|
|
{
|
|
$realCurrentLineNumber = $this->currentLineNb + $this->offset;
|
|
foreach ($this->skippedLineNumbers as $skippedLineNumber) {
|
|
if ($skippedLineNumber > $realCurrentLineNumber) {
|
|
break;
|
|
}
|
|
++$realCurrentLineNumber;
|
|
}
|
|
return $realCurrentLineNumber;
|
|
}
|
|
private function getCurrentLineIndentation() : int
|
|
{
|
|
if (' ' !== ($this->currentLine[0] ?? '')) {
|
|
return 0;
|
|
}
|
|
return \strlen($this->currentLine) - \strlen(\ltrim($this->currentLine, ' '));
|
|
}
|
|
/**
|
|
* Returns the next embed block of YAML.
|
|
*
|
|
* @param int|null $indentation The indent level at which the block is to be read, or null for default
|
|
* @param bool $inSequence True if the enclosing data structure is a sequence
|
|
*
|
|
* @throws ParseException When indentation problem are detected
|
|
*/
|
|
private function getNextEmbedBlock(?int $indentation = null, bool $inSequence = \false) : string
|
|
{
|
|
$oldLineIndentation = $this->getCurrentLineIndentation();
|
|
if (!$this->moveToNextLine()) {
|
|
return '';
|
|
}
|
|
if (null === $indentation) {
|
|
$newIndent = null;
|
|
$movements = 0;
|
|
do {
|
|
$EOF = \false;
|
|
// empty and comment-like lines do not influence the indentation depth
|
|
if ($this->isCurrentLineEmpty() || $this->isCurrentLineComment()) {
|
|
$EOF = !$this->moveToNextLine();
|
|
if (!$EOF) {
|
|
++$movements;
|
|
}
|
|
} else {
|
|
$newIndent = $this->getCurrentLineIndentation();
|
|
}
|
|
} while (!$EOF && null === $newIndent);
|
|
for ($i = 0; $i < $movements; ++$i) {
|
|
$this->moveToPreviousLine();
|
|
}
|
|
$unindentedEmbedBlock = $this->isStringUnIndentedCollectionItem();
|
|
if (!$this->isCurrentLineEmpty() && 0 === $newIndent && !$unindentedEmbedBlock) {
|
|
throw new ParseException('Indentation problem.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
|
|
}
|
|
} else {
|
|
$newIndent = $indentation;
|
|
}
|
|
$data = [];
|
|
if ($this->getCurrentLineIndentation() >= $newIndent) {
|
|
$data[] = \substr($this->currentLine, $newIndent ?? 0);
|
|
} elseif ($this->isCurrentLineEmpty() || $this->isCurrentLineComment()) {
|
|
$data[] = $this->currentLine;
|
|
} else {
|
|
$this->moveToPreviousLine();
|
|
return '';
|
|
}
|
|
if ($inSequence && $oldLineIndentation === $newIndent && isset($data[0][0]) && '-' === $data[0][0]) {
|
|
// the previous line contained a dash but no item content, this line is a sequence item with the same indentation
|
|
// and therefore no nested list or mapping
|
|
$this->moveToPreviousLine();
|
|
return '';
|
|
}
|
|
$isItUnindentedCollection = $this->isStringUnIndentedCollectionItem();
|
|
$isItComment = $this->isCurrentLineComment();
|
|
while ($this->moveToNextLine()) {
|
|
if ($isItComment && !$isItUnindentedCollection) {
|
|
$isItUnindentedCollection = $this->isStringUnIndentedCollectionItem();
|
|
$isItComment = $this->isCurrentLineComment();
|
|
}
|
|
$indent = $this->getCurrentLineIndentation();
|
|
if ($isItUnindentedCollection && !$this->isCurrentLineEmpty() && !$this->isStringUnIndentedCollectionItem() && $newIndent === $indent) {
|
|
$this->moveToPreviousLine();
|
|
break;
|
|
}
|
|
if ($this->isCurrentLineBlank()) {
|
|
$data[] = \substr($this->currentLine, $newIndent ?? 0);
|
|
continue;
|
|
}
|
|
if ($indent >= $newIndent) {
|
|
$data[] = \substr($this->currentLine, $newIndent ?? 0);
|
|
} elseif ($this->isCurrentLineComment()) {
|
|
$data[] = $this->currentLine;
|
|
} elseif (0 == $indent) {
|
|
$this->moveToPreviousLine();
|
|
break;
|
|
} else {
|
|
throw new ParseException('Indentation problem.', $this->getRealCurrentLineNb() + 1, $this->currentLine, $this->filename);
|
|
}
|
|
}
|
|
return \implode("\n", $data);
|
|
}
|
|
private function hasMoreLines() : bool
|
|
{
|
|
return \count($this->lines) - 1 > $this->currentLineNb;
|
|
}
|
|
/**
|
|
* Moves the parser to the next line.
|
|
*/
|
|
private function moveToNextLine() : bool
|
|
{
|
|
if ($this->currentLineNb >= $this->numberOfParsedLines - 1) {
|
|
return \false;
|
|
}
|
|
$this->currentLine = $this->lines[++$this->currentLineNb];
|
|
return \true;
|
|
}
|
|
/**
|
|
* Moves the parser to the previous line.
|
|
*/
|
|
private function moveToPreviousLine() : bool
|
|
{
|
|
if ($this->currentLineNb < 1) {
|
|
return \false;
|
|
}
|
|
$this->currentLine = $this->lines[--$this->currentLineNb];
|
|
return \true;
|
|
}
|
|
/**
|
|
* Parses a YAML value.
|
|
*
|
|
* @param string $value A YAML value
|
|
* @param int $flags A bit field of Yaml::PARSE_* constants to customize the YAML parser behavior
|
|
* @param string $context The parser context (either sequence or mapping)
|
|
*
|
|
* @throws ParseException When reference does not exist
|
|
* @return mixed
|
|
*/
|
|
private function parseValue(string $value, int $flags, string $context)
|
|
{
|
|
if (\strncmp($value, '*', \strlen('*')) === 0) {
|
|
if (\false !== ($pos = \strpos($value, '#'))) {
|
|
$value = \substr($value, 1, $pos - 2);
|
|
} else {
|
|
$value = \substr($value, 1);
|
|
}
|
|
if (!\array_key_exists($value, $this->refs)) {
|
|
if (\false !== ($pos = \array_search($value, $this->refsBeingParsed, \true))) {
|
|
throw new ParseException(\sprintf('Circular reference [%s] detected for reference "%s".', \implode(', ', \array_merge(\array_slice($this->refsBeingParsed, $pos), [$value])), $value), $this->currentLineNb + 1, $this->currentLine, $this->filename);
|
|
}
|
|
throw new ParseException(\sprintf('Reference "%s" does not exist.', $value), $this->currentLineNb + 1, $this->currentLine, $this->filename);
|
|
}
|
|
return $this->refs[$value];
|
|
}
|
|
if (\in_array($value[0], ['!', '|', '>'], \true) && self::preg_match('/^(?:' . self::TAG_PATTERN . ' +)?' . self::BLOCK_SCALAR_HEADER_PATTERN . '$/', $value, $matches)) {
|
|
$modifiers = $matches['modifiers'] ?? '';
|
|
$data = $this->parseBlockScalar($matches['separator'], \preg_replace('#\\d+#', '', $modifiers), \abs((int) $modifiers));
|
|
if ('' !== $matches['tag'] && '!' !== $matches['tag']) {
|
|
if ('!!binary' === $matches['tag']) {
|
|
return Inline::evaluateBinaryScalar($data);
|
|
}
|
|
return new TaggedValue(\substr($matches['tag'], 1), $data);
|
|
}
|
|
return $data;
|
|
}
|
|
try {
|
|
if ('' !== $value && '{' === $value[0]) {
|
|
$cursor = \strlen(\rtrim($this->currentLine)) - \strlen(\rtrim($value));
|
|
return Inline::parse($this->lexInlineMapping($cursor), $flags, $this->refs);
|
|
} elseif ('' !== $value && '[' === $value[0]) {
|
|
$cursor = \strlen(\rtrim($this->currentLine)) - \strlen(\rtrim($value));
|
|
return Inline::parse($this->lexInlineSequence($cursor), $flags, $this->refs);
|
|
}
|
|
switch ($value[0] ?? '') {
|
|
case '"':
|
|
case "'":
|
|
$cursor = \strlen(\rtrim($this->currentLine)) - \strlen(\rtrim($value));
|
|
$parsedValue = Inline::parse($this->lexInlineQuotedString($cursor), $flags, $this->refs);
|
|
if (isset($this->currentLine[$cursor]) && \preg_replace('/\\s*(#.*)?$/A', '', \substr($this->currentLine, $cursor))) {
|
|
throw new ParseException(\sprintf('Unexpected characters near "%s".', \substr($this->currentLine, $cursor)));
|
|
}
|
|
return $parsedValue;
|
|
default:
|
|
$lines = [];
|
|
while ($this->moveToNextLine()) {
|
|
// unquoted strings end before the first unindented line
|
|
if (0 === $this->getCurrentLineIndentation()) {
|
|
$this->moveToPreviousLine();
|
|
break;
|
|
}
|
|
$lines[] = \trim($this->currentLine);
|
|
}
|
|
for ($i = 0, $linesCount = \count($lines), $previousLineBlank = \false; $i < $linesCount; ++$i) {
|
|
if ('' === $lines[$i]) {
|
|
$value .= "\n";
|
|
$previousLineBlank = \true;
|
|
} elseif ($previousLineBlank) {
|
|
$value .= $lines[$i];
|
|
$previousLineBlank = \false;
|
|
} else {
|
|
$value .= ' ' . $lines[$i];
|
|
$previousLineBlank = \false;
|
|
}
|
|
}
|
|
Inline::$parsedLineNumber = $this->getRealCurrentLineNb();
|
|
$parsedValue = Inline::parse($value, $flags, $this->refs);
|
|
if ('mapping' === $context && \is_string($parsedValue) && '"' !== $value[0] && "'" !== $value[0] && '[' !== $value[0] && '{' !== $value[0] && '!' !== $value[0] && \strpos($parsedValue, ': ') !== \false) {
|
|
throw new ParseException('A colon cannot be used in an unquoted mapping value.', $this->getRealCurrentLineNb() + 1, $value, $this->filename);
|
|
}
|
|
return $parsedValue;
|
|
}
|
|
} catch (ParseException $e) {
|
|
$e->setParsedLine($this->getRealCurrentLineNb() + 1);
|
|
$e->setSnippet($this->currentLine);
|
|
throw $e;
|
|
}
|
|
}
|
|
/**
|
|
* Parses a block scalar.
|
|
*
|
|
* @param string $style The style indicator that was used to begin this block scalar (| or >)
|
|
* @param string $chomping The chomping indicator that was used to begin this block scalar (+ or -)
|
|
* @param int $indentation The indentation indicator that was used to begin this block scalar
|
|
*/
|
|
private function parseBlockScalar(string $style, string $chomping = '', int $indentation = 0) : string
|
|
{
|
|
$notEOF = $this->moveToNextLine();
|
|
if (!$notEOF) {
|
|
return '';
|
|
}
|
|
$isCurrentLineBlank = $this->isCurrentLineBlank();
|
|
$blockLines = [];
|
|
// leading blank lines are consumed before determining indentation
|
|
while ($notEOF && $isCurrentLineBlank) {
|
|
// newline only if not EOF
|
|
if ($notEOF = $this->moveToNextLine()) {
|
|
$blockLines[] = '';
|
|
$isCurrentLineBlank = $this->isCurrentLineBlank();
|
|
}
|
|
}
|
|
// determine indentation if not specified
|
|
if (0 === $indentation) {
|
|
$currentLineLength = \strlen($this->currentLine);
|
|
for ($i = 0; $i < $currentLineLength && ' ' === $this->currentLine[$i]; ++$i) {
|
|
++$indentation;
|
|
}
|
|
}
|
|
if ($indentation > 0) {
|
|
$pattern = \sprintf('/^ {%d}(.*)$/', $indentation);
|
|
while ($notEOF && ($isCurrentLineBlank || self::preg_match($pattern, $this->currentLine, $matches))) {
|
|
if ($isCurrentLineBlank && \strlen($this->currentLine) > $indentation) {
|
|
$blockLines[] = \substr($this->currentLine, $indentation);
|
|
} elseif ($isCurrentLineBlank) {
|
|
$blockLines[] = '';
|
|
} else {
|
|
$blockLines[] = $matches[1];
|
|
}
|
|
// newline only if not EOF
|
|
if ($notEOF = $this->moveToNextLine()) {
|
|
$isCurrentLineBlank = $this->isCurrentLineBlank();
|
|
}
|
|
}
|
|
} elseif ($notEOF) {
|
|
$blockLines[] = '';
|
|
}
|
|
if ($notEOF) {
|
|
$blockLines[] = '';
|
|
$this->moveToPreviousLine();
|
|
} elseif (!$notEOF && !$this->isCurrentLineLastLineInDocument()) {
|
|
$blockLines[] = '';
|
|
}
|
|
// folded style
|
|
if ('>' === $style) {
|
|
$text = '';
|
|
$previousLineIndented = \false;
|
|
$previousLineBlank = \false;
|
|
for ($i = 0, $blockLinesCount = \count($blockLines); $i < $blockLinesCount; ++$i) {
|
|
if ('' === $blockLines[$i]) {
|
|
$text .= "\n";
|
|
$previousLineIndented = \false;
|
|
$previousLineBlank = \true;
|
|
} elseif (' ' === $blockLines[$i][0]) {
|
|
$text .= "\n" . $blockLines[$i];
|
|
$previousLineIndented = \true;
|
|
$previousLineBlank = \false;
|
|
} elseif ($previousLineIndented) {
|
|
$text .= "\n" . $blockLines[$i];
|
|
$previousLineIndented = \false;
|
|
$previousLineBlank = \false;
|
|
} elseif ($previousLineBlank || 0 === $i) {
|
|
$text .= $blockLines[$i];
|
|
$previousLineIndented = \false;
|
|
$previousLineBlank = \false;
|
|
} else {
|
|
$text .= ' ' . $blockLines[$i];
|
|
$previousLineIndented = \false;
|
|
$previousLineBlank = \false;
|
|
}
|
|
}
|
|
} else {
|
|
$text = \implode("\n", $blockLines);
|
|
}
|
|
// deal with trailing newlines
|
|
if ('' === $chomping) {
|
|
$text = \preg_replace('/\\n+$/', "\n", $text);
|
|
} elseif ('-' === $chomping) {
|
|
$text = \preg_replace('/\\n+$/', '', $text);
|
|
}
|
|
return $text;
|
|
}
|
|
/**
|
|
* Returns true if the next line is indented.
|
|
*/
|
|
private function isNextLineIndented() : bool
|
|
{
|
|
$currentIndentation = $this->getCurrentLineIndentation();
|
|
$movements = 0;
|
|
do {
|
|
$EOF = !$this->moveToNextLine();
|
|
if (!$EOF) {
|
|
++$movements;
|
|
}
|
|
} while (!$EOF && ($this->isCurrentLineEmpty() || $this->isCurrentLineComment()));
|
|
if ($EOF) {
|
|
for ($i = 0; $i < $movements; ++$i) {
|
|
$this->moveToPreviousLine();
|
|
}
|
|
return \false;
|
|
}
|
|
$ret = $this->getCurrentLineIndentation() > $currentIndentation;
|
|
for ($i = 0; $i < $movements; ++$i) {
|
|
$this->moveToPreviousLine();
|
|
}
|
|
return $ret;
|
|
}
|
|
private function isCurrentLineEmpty() : bool
|
|
{
|
|
return $this->isCurrentLineBlank() || $this->isCurrentLineComment();
|
|
}
|
|
private function isCurrentLineBlank() : bool
|
|
{
|
|
return '' === $this->currentLine || '' === \trim($this->currentLine, ' ');
|
|
}
|
|
private function isCurrentLineComment() : bool
|
|
{
|
|
// checking explicitly the first char of the trim is faster than loops or strpos
|
|
$ltrimmedLine = '' !== $this->currentLine && ' ' === $this->currentLine[0] ? \ltrim($this->currentLine, ' ') : $this->currentLine;
|
|
return '' !== $ltrimmedLine && '#' === $ltrimmedLine[0];
|
|
}
|
|
private function isCurrentLineLastLineInDocument() : bool
|
|
{
|
|
return $this->offset + $this->currentLineNb >= $this->totalNumberOfLines - 1;
|
|
}
|
|
private function cleanup(string $value) : string
|
|
{
|
|
$value = \str_replace(["\r\n", "\r"], "\n", $value);
|
|
// strip YAML header
|
|
$count = 0;
|
|
$value = \preg_replace('#^\\%YAML[: ][\\d\\.]+.*\\n#u', '', $value, -1, $count);
|
|
$this->offset += $count;
|
|
// remove leading comments
|
|
$trimmedValue = \preg_replace('#^(\\#.*?\\n)+#s', '', $value, -1, $count);
|
|
if (1 === $count) {
|
|
// items have been removed, update the offset
|
|
$this->offset += \substr_count($value, "\n") - \substr_count($trimmedValue, "\n");
|
|
$value = $trimmedValue;
|
|
}
|
|
// remove start of the document marker (---)
|
|
$trimmedValue = \preg_replace('#^\\-\\-\\-.*?\\n#s', '', $value, -1, $count);
|
|
if (1 === $count) {
|
|
// items have been removed, update the offset
|
|
$this->offset += \substr_count($value, "\n") - \substr_count($trimmedValue, "\n");
|
|
$value = $trimmedValue;
|
|
// remove end of the document marker (...)
|
|
$value = \preg_replace('#\\.\\.\\.\\s*$#', '', $value);
|
|
}
|
|
return $value;
|
|
}
|
|
private function isNextLineUnIndentedCollection() : bool
|
|
{
|
|
$currentIndentation = $this->getCurrentLineIndentation();
|
|
$movements = 0;
|
|
do {
|
|
$EOF = !$this->moveToNextLine();
|
|
if (!$EOF) {
|
|
++$movements;
|
|
}
|
|
} while (!$EOF && ($this->isCurrentLineEmpty() || $this->isCurrentLineComment()));
|
|
if ($EOF) {
|
|
return \false;
|
|
}
|
|
$ret = $this->getCurrentLineIndentation() === $currentIndentation && $this->isStringUnIndentedCollectionItem();
|
|
for ($i = 0; $i < $movements; ++$i) {
|
|
$this->moveToPreviousLine();
|
|
}
|
|
return $ret;
|
|
}
|
|
private function isStringUnIndentedCollectionItem() : bool
|
|
{
|
|
return '-' === \rtrim($this->currentLine) || \strncmp($this->currentLine, '- ', \strlen('- ')) === 0;
|
|
}
|
|
/**
|
|
* A local wrapper for "preg_match" which will throw a ParseException if there
|
|
* is an internal error in the PCRE engine.
|
|
*
|
|
* This avoids us needing to check for "false" every time PCRE is used
|
|
* in the YAML engine
|
|
*
|
|
* @throws ParseException on a PCRE internal error
|
|
*
|
|
* @internal
|
|
*/
|
|
public static function preg_match(string $pattern, string $subject, ?array &$matches = null, int $flags = 0, int $offset = 0) : int
|
|
{
|
|
if (\false === ($ret = \preg_match($pattern, $subject, $matches, $flags, $offset))) {
|
|
throw new ParseException(\preg_last_error_msg());
|
|
}
|
|
return $ret;
|
|
}
|
|
/**
|
|
* Trim the tag on top of the value.
|
|
*
|
|
* Prevent values such as "!foo {quz: bar}" to be considered as
|
|
* a mapping block.
|
|
*/
|
|
private function trimTag(string $value) : string
|
|
{
|
|
if ('!' === $value[0]) {
|
|
return \ltrim(\substr($value, 1, \strcspn($value, " \r\n", 1)), ' ');
|
|
}
|
|
return $value;
|
|
}
|
|
private function getLineTag(string $value, int $flags, bool $nextLineCheck = \true) : ?string
|
|
{
|
|
if ('' === $value || '!' !== $value[0] || 1 !== self::preg_match('/^' . self::TAG_PATTERN . ' *( +#.*)?$/', $value, $matches)) {
|
|
return null;
|
|
}
|
|
if ($nextLineCheck && !$this->isNextLineIndented()) {
|
|
return null;
|
|
}
|
|
$tag = \substr($matches['tag'], 1);
|
|
// Built-in tags
|
|
if ($tag && '!' === $tag[0]) {
|
|
throw new ParseException(\sprintf('The built-in tag "!%s" is not implemented.', $tag), $this->getRealCurrentLineNb() + 1, $value, $this->filename);
|
|
}
|
|
if (Yaml::PARSE_CUSTOM_TAGS & $flags) {
|
|
return $tag;
|
|
}
|
|
throw new ParseException(\sprintf('Tags support is not enabled. You must use the flag "Yaml::PARSE_CUSTOM_TAGS" to use "%s".', $matches['tag']), $this->getRealCurrentLineNb() + 1, $value, $this->filename);
|
|
}
|
|
private function lexInlineQuotedString(int &$cursor = 0) : string
|
|
{
|
|
$quotation = $this->currentLine[$cursor];
|
|
$value = $quotation;
|
|
++$cursor;
|
|
$previousLineWasNewline = \true;
|
|
$previousLineWasTerminatedWithBackslash = \false;
|
|
$lineNumber = 0;
|
|
do {
|
|
if (++$lineNumber > 1) {
|
|
$cursor += \strspn($this->currentLine, ' ', $cursor);
|
|
}
|
|
if ($this->isCurrentLineBlank()) {
|
|
$value .= "\n";
|
|
} elseif (!$previousLineWasNewline && !$previousLineWasTerminatedWithBackslash) {
|
|
$value .= ' ';
|
|
}
|
|
for (; \strlen($this->currentLine) > $cursor; ++$cursor) {
|
|
switch ($this->currentLine[$cursor]) {
|
|
case '\\':
|
|
if ("'" === $quotation) {
|
|
$value .= '\\';
|
|
} elseif (isset($this->currentLine[++$cursor])) {
|
|
$value .= '\\' . $this->currentLine[$cursor];
|
|
}
|
|
break;
|
|
case $quotation:
|
|
++$cursor;
|
|
if ("'" === $quotation && isset($this->currentLine[$cursor]) && "'" === $this->currentLine[$cursor]) {
|
|
$value .= "''";
|
|
break;
|
|
}
|
|
return $value . $quotation;
|
|
default:
|
|
$value .= $this->currentLine[$cursor];
|
|
}
|
|
}
|
|
if ($this->isCurrentLineBlank()) {
|
|
$previousLineWasNewline = \true;
|
|
$previousLineWasTerminatedWithBackslash = \false;
|
|
} elseif ('\\' === $this->currentLine[-1]) {
|
|
$previousLineWasNewline = \false;
|
|
$previousLineWasTerminatedWithBackslash = \true;
|
|
} else {
|
|
$previousLineWasNewline = \false;
|
|
$previousLineWasTerminatedWithBackslash = \false;
|
|
}
|
|
if ($this->hasMoreLines()) {
|
|
$cursor = 0;
|
|
}
|
|
} while ($this->moveToNextLine());
|
|
throw new ParseException('Malformed inline YAML string.');
|
|
}
|
|
private function lexUnquotedString(int &$cursor) : string
|
|
{
|
|
$offset = $cursor;
|
|
$cursor += \strcspn($this->currentLine, '[]{},: ', $cursor);
|
|
if ($cursor === $offset) {
|
|
throw new ParseException('Malformed unquoted YAML string.');
|
|
}
|
|
return \substr($this->currentLine, $offset, $cursor - $offset);
|
|
}
|
|
private function lexInlineMapping(int &$cursor = 0) : string
|
|
{
|
|
return $this->lexInlineStructure($cursor, '}');
|
|
}
|
|
private function lexInlineSequence(int &$cursor = 0) : string
|
|
{
|
|
return $this->lexInlineStructure($cursor, ']');
|
|
}
|
|
private function lexInlineStructure(int &$cursor, string $closingTag) : string
|
|
{
|
|
$value = $this->currentLine[$cursor];
|
|
++$cursor;
|
|
do {
|
|
$this->consumeWhitespaces($cursor);
|
|
while (isset($this->currentLine[$cursor])) {
|
|
switch ($this->currentLine[$cursor]) {
|
|
case '"':
|
|
case "'":
|
|
$value .= $this->lexInlineQuotedString($cursor);
|
|
break;
|
|
case ':':
|
|
case ',':
|
|
$value .= $this->currentLine[$cursor];
|
|
++$cursor;
|
|
break;
|
|
case '{':
|
|
$value .= $this->lexInlineMapping($cursor);
|
|
break;
|
|
case '[':
|
|
$value .= $this->lexInlineSequence($cursor);
|
|
break;
|
|
case $closingTag:
|
|
$value .= $this->currentLine[$cursor];
|
|
++$cursor;
|
|
return $value;
|
|
case '#':
|
|
break 2;
|
|
default:
|
|
$value .= $this->lexUnquotedString($cursor);
|
|
}
|
|
if ($this->consumeWhitespaces($cursor)) {
|
|
$value .= ' ';
|
|
}
|
|
}
|
|
if ($this->hasMoreLines()) {
|
|
$cursor = 0;
|
|
}
|
|
} while ($this->moveToNextLine());
|
|
throw new ParseException('Malformed inline YAML string.');
|
|
}
|
|
private function consumeWhitespaces(int &$cursor) : bool
|
|
{
|
|
$whitespacesConsumed = 0;
|
|
do {
|
|
$whitespaceOnlyTokenLength = \strspn($this->currentLine, ' ', $cursor);
|
|
$whitespacesConsumed += $whitespaceOnlyTokenLength;
|
|
$cursor += $whitespaceOnlyTokenLength;
|
|
if (isset($this->currentLine[$cursor])) {
|
|
return 0 < $whitespacesConsumed;
|
|
}
|
|
if ($this->hasMoreLines()) {
|
|
$cursor = 0;
|
|
}
|
|
} while ($this->moveToNextLine());
|
|
return 0 < $whitespacesConsumed;
|
|
}
|
|
}
|