74      * @param string $value A YAML string
81     public function parse(string $value, int $flags = 0)  argument
83         if (false === preg_match('//u', $value)) {
97             $data = $this->doParse($value, $flags);
116     private function doParse(string $value, int $flags)  argument
120         $value = $this->cleanup($value);
121         $this->lines = explode("\n", $value);
270                             $value = $values['value'];
272                             $value = $this->getNextEmbedBlock();
274 …                    $parsed = $this->parseBlock($this->getRealCurrentLineNb() + 1, $value, $flags);
332 … $value = $this->parseBlock($this->getRealCurrentLineNb() + 1, $this->getNextEmbedBlock(), $flags);
334                             $this->refs[$refMatches['ref']] = $value;
336 …                          if (Yaml::PARSE_OBJECT_FOR_MAP & $flags && $value instanceof \stdClass) {
337                                 $value = (array) $value;
340                             $data += $value;
345                                 $data[$key] = new TaggedValue($subTag, $value);
347                                 $data[$key] = $value;
354                     $value = $this->parseValue(rtrim($values['value']), $flags, $context);
358                         $data[$key] = $value;
433                 if (\is_string($value) && $this->lines[0] === trim($value)) {
435                         $value = Inline::parse($this->lines[0], $flags, $this->refs);
443                     return $value;
450                     $value = '';
467                             $value .= "\n";
469                             $value .= ' ';
473                             $value .= ltrim(substr($line, 0, -1));
475                             $value .= $trimmedLine;
491                         return Inline::parse(trim($value));
508             foreach ($data as $key => $value) {
509                 $object->$key = $value;
713      * @param string $value   A YAML value
721     private function parseValue(string $value, int $flags, string $context)  argument
723         if (0 === strpos($value, '*')) {
724             if (false !== $pos = strpos($value, '#')) {
725                 $value = substr($value, 1, $pos - 2);
727                 $value = substr($value, 1);
730             if (!\array_key_exists($value, $this->refs)) {
731                 if (false !== $pos = array_search($value, $this->refsBeingParsed, true)) {
732 …ode(', ', array_merge(\array_slice($this->refsBeingParsed, $pos), [$value])), $value), $this->curr…
735 …throw new ParseException(sprintf('Reference "%s" does not exist.', $value), $this->currentLineNb +…
738             return $this->refs[$value];
741 …in_array($value[0], ['!', '|', '>'], true) && self::preg_match('/^(?:'.self::TAG_PATTERN.' +)?'.se…
758             if ('' !== $value && '{' === $value[0]) {
759                 $cursor = \strlen(rtrim($this->currentLine)) - \strlen(rtrim($value));
762             } elseif ('' !== $value && '[' === $value[0]) {
763                 $cursor = \strlen(rtrim($this->currentLine)) - \strlen(rtrim($value));
768             switch ($value[0] ?? '') {
771                     $cursor = \strlen(rtrim($this->currentLine)) - \strlen(rtrim($value));
795                             $value .= "\n";
798                             $value .= $lines[$i];
801                             $value .= ' '.$lines[$i];
808                     $parsedValue = Inline::parse($value, $flags, $this->refs);
810 …tring($parsedValue) && '"' !== $value[0] && "'" !== $value[0] && '[' !== $value[0] && '{' !== $val…
811 …e used in an unquoted mapping value.', $this->getRealCurrentLineNb() + 1, $value, $this->filename);
999      * @param string $value The input YAML string
1001     private function cleanup(string $value): string  argument
1003         $value = str_replace(["\r\n", "\r"], "\n", $value);
1007         $value = preg_replace('#^\%YAML[: ][\d\.]+.*\n#u', '', $value, -1, $count);
1011         $trimmedValue = preg_replace('#^(\#.*?\n)+#s', '', $value, -1, $count);
1014             $this->offset += substr_count($value, "\n") - substr_count($trimmedValue, "\n");
1015             $value = $trimmedValue;
1019         $trimmedValue = preg_replace('#^\-\-\-.*?\n#s', '', $value, -1, $count);
1022             $this->offset += substr_count($value, "\n") - substr_count($trimmedValue, "\n");
1023             $value = $trimmedValue;
1026             $value = preg_replace('#\.\.\.\s*$#', '', $value);
1029         return $value;
1117     private function trimTag(string $value): string  argument
1119         if ('!' === $value[0]) {
1120             return ltrim(substr($value, 1, strcspn($value, " \r\n", 1)), ' ');
1123         return $value;
1126     private function getLineTag(string $value, int $flags, bool $nextLineCheck = true): ?string  argument
1128 …if ('' === $value || '!' !== $value[0] || 1 !== self::preg_match('/^'.self::TAG_PATTERN.' *( +#.*)…
1140 …tag "!%s" is not implemented.', $tag), $this->getRealCurrentLineNb() + 1, $value, $this->filename);
1147 …TAGS" to use "%s".', $matches['tag']), $this->getRealCurrentLineNb() + 1, $value, $this->filename);
1153         $value = $quotation;
1166                 $value .= "\n";
1168                 $value .= ' ';
1175                             $value .= '\\';
1177                             $value .= '\\'.$this->currentLine[$cursor];
1185                             $value .= "''";
1189                         return $value.$quotation;
1191                         $value .= $this->currentLine[$cursor];
1238         $value = $this->currentLine[$cursor];
1248                         $value .= $this->lexInlineQuotedString($cursor);
1252                         $value .= $this->currentLine[$cursor];
1256                         $value .= $this->lexInlineMapping($cursor);
1259                         $value .= $this->lexInlineSequence($cursor);
1262                         $value .= $this->currentLine[$cursor];
1265                         return $value;
1269                         $value .= $this->lexUnquotedString($cursor);
1273                     $value .= ' ';