72      * @param string $value A YAML string
79     public function parse(string $value, int $flags = 0)  argument
81         if (false === preg_match('//u', $value)) {
96             $data = $this->doParse($value, $flags);
121     private function doParse(string $value, int $flags)  argument
125         $value = $this->cleanup($value);
126         $this->lines = explode("\n", $value);
261                             $value = $values['value'];
263                             $value = $this->getNextEmbedBlock();
265 …                    $parsed = $this->parseBlock($this->getRealCurrentLineNb() + 1, $value, $flags);
323 … $value = $this->parseBlock($this->getRealCurrentLineNb() + 1, $this->getNextEmbedBlock(), $flags);
325                             $this->refs[$refMatches['ref']] = $value;
327 …                          if (Yaml::PARSE_OBJECT_FOR_MAP & $flags && $value instanceof \stdClass) {
328                                 $value = (array) $value;
331                             $data += $value;
336                                 $data[$key] = new TaggedValue($subTag, $value);
338                                 $data[$key] = $value;
345                     $value = $this->parseValue(rtrim($values['value']), $flags, $context);
349                         $data[$key] = $value;
369                 if (\is_string($value) && $this->lines[0] === trim($value)) {
371                         $value = Inline::parse($this->lines[0], $flags, $this->refs);
379                     return $value;
386                     $value = '';
394                             $value .= "\n";
396                             $value .= ' ';
400                             $value .= ltrim(substr($line, 0, -1));
402                             $value .= trim($line);
418                         return Inline::parse(trim($value));
435             foreach ($data as $key => $value) {
436                 $object->$key = $value;
634      * @param string $value   A YAML value
642     private function parseValue(string $value, int $flags, string $context)  argument
644         if (0 === strpos($value, '*')) {
645             if (false !== $pos = strpos($value, '#')) {
646                 $value = substr($value, 1, $pos - 2);
648                 $value = substr($value, 1);
651             if (!\array_key_exists($value, $this->refs)) {
652                 if (false !== $pos = array_search($value, $this->refsBeingParsed, true)) {
653 …e "%s".', implode(', ', \array_slice($this->refsBeingParsed, $pos)), $value, $value), $this->curre…
656 …throw new ParseException(sprintf('Reference "%s" does not exist.', $value), $this->currentLineNb +…
659             return $this->refs[$value];
662 …in_array($value[0], ['!', '|', '>'], true) && self::preg_match('/^(?:'.self::TAG_PATTERN.' +)?'.se…
679 …         $quotation = '' !== $value && ('"' === $value[0] || "'" === $value[0]) ? $value[0] : null;
682 … (null !== $quotation && self::preg_match('/^'.$quotation.'.*'.$quotation.'(\s*#.*)?$/', $value)) {
683                 return Inline::parse($value, $flags, $this->refs);
706                     $value .= "\n";
709                     $value .= $lines[$i];
712                     $value .= ' '.$lines[$i];
719             $parsedValue = Inline::parse($value, $flags, $this->refs);
721 …tring($parsedValue) && '"' !== $value[0] && "'" !== $value[0] && '[' !== $value[0] && '{' !== $val…
722 …e used in an unquoted mapping value.', $this->getRealCurrentLineNb() + 1, $value, $this->filename);
919      * @param string $value The input YAML string
923     private function cleanup(string $value): string  argument
925         $value = str_replace(["\r\n", "\r"], "\n", $value);
929         $value = preg_replace('#^\%YAML[: ][\d\.]+.*\n#u', '', $value, -1, $count);
933         $trimmedValue = preg_replace('#^(\#.*?\n)+#s', '', $value, -1, $count);
936             $this->offset += substr_count($value, "\n") - substr_count($trimmedValue, "\n");
937             $value = $trimmedValue;
941         $trimmedValue = preg_replace('#^\-\-\-.*?\n#s', '', $value, -1, $count);
944             $this->offset += substr_count($value, "\n") - substr_count($trimmedValue, "\n");
945             $value = $trimmedValue;
948             $value = preg_replace('#\.\.\.\s*$#', '', $value);
951         return $value;
1043     private function trimTag(string $value): string  argument
1045         if ('!' === $value[0]) {
1046             return ltrim(substr($value, 1, strcspn($value, " \r\n", 1)), ' ');
1049         return $value;
1052     private function getLineTag(string $value, int $flags, bool $nextLineCheck = true): ?string  argument
1054 …if ('' === $value || '!' !== $value[0] || 1 !== self::preg_match('/^'.self::TAG_PATTERN.' *( +#.*)…
1066 …tag "!%s" is not implemented.', $tag), $this->getRealCurrentLineNb() + 1, $value, $this->filename);
1073 …TAGS" to use "%s".', $matches['tag']), $this->getRealCurrentLineNb() + 1, $value, $this->filename);