godbout /
alpinejs-dash-docset
| Total Complexity | 202 |
| Total Lines | 767 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Inline often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Inline, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 25 | class Inline |
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| 26 | { |
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| 27 | const REGEX_QUOTED_STRING = '(?:"([^"\\\\]*+(?:\\\\.[^"\\\\]*+)*+)"|\'([^\']*+(?:\'\'[^\']*+)*+)\')'; |
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| 28 | |||
| 29 | public static $parsedLineNumber = -1; |
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| 30 | public static $parsedFilename; |
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| 31 | |||
| 32 | private static $exceptionOnInvalidType = false; |
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| 33 | private static $objectSupport = false; |
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| 34 | private static $objectForMap = false; |
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| 35 | private static $constantSupport = false; |
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| 36 | |||
| 37 | public static function initialize(int $flags, int $parsedLineNumber = null, string $parsedFilename = null) |
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| 38 | { |
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| 39 | self::$exceptionOnInvalidType = (bool) (Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE & $flags); |
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| 40 | self::$objectSupport = (bool) (Yaml::PARSE_OBJECT & $flags); |
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| 41 | self::$objectForMap = (bool) (Yaml::PARSE_OBJECT_FOR_MAP & $flags); |
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| 42 | self::$constantSupport = (bool) (Yaml::PARSE_CONSTANT & $flags); |
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| 43 | self::$parsedFilename = $parsedFilename; |
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| 44 | |||
| 45 | if (null !== $parsedLineNumber) { |
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| 46 | self::$parsedLineNumber = $parsedLineNumber; |
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| 47 | } |
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| 48 | } |
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| 49 | |||
| 50 | /** |
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| 51 | * Converts a YAML string to a PHP value. |
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| 52 | * |
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| 53 | * @param string $value A YAML string |
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| 54 | * @param int $flags A bit field of PARSE_* constants to customize the YAML parser behavior |
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| 55 | * @param array $references Mapping of variable names to values |
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| 56 | * |
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| 57 | * @return mixed A PHP value |
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| 58 | * |
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| 59 | * @throws ParseException |
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| 60 | */ |
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| 61 | public static function parse(string $value = null, int $flags = 0, array $references = []) |
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| 62 | { |
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| 63 | self::initialize($flags); |
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| 64 | |||
| 65 | $value = trim($value); |
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| 66 | |||
| 67 | if ('' === $value) { |
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| 68 | return ''; |
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| 69 | } |
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| 70 | |||
| 71 | if (2 /* MB_OVERLOAD_STRING */ & (int) ini_get('mbstring.func_overload')) { |
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| 72 | $mbEncoding = mb_internal_encoding(); |
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| 73 | mb_internal_encoding('ASCII'); |
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| 74 | } |
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| 75 | |||
| 76 | try { |
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| 77 | $i = 0; |
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| 78 | $tag = self::parseTag($value, $i, $flags); |
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| 79 | switch ($value[$i]) { |
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| 80 | case '[': |
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| 81 | $result = self::parseSequence($value, $flags, $i, $references); |
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| 82 | ++$i; |
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| 83 | break; |
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| 84 | case '{': |
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| 85 | $result = self::parseMapping($value, $flags, $i, $references); |
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| 86 | ++$i; |
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| 87 | break; |
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| 88 | default: |
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| 89 | $result = self::parseScalar($value, $flags, null, $i, null === $tag, $references); |
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| 90 | } |
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| 91 | |||
| 92 | // some comments are allowed at the end |
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| 93 | if (preg_replace('/\s+#.*$/A', '', substr($value, $i))) { |
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| 94 | throw new ParseException(sprintf('Unexpected characters near "%s".', substr($value, $i)), self::$parsedLineNumber + 1, $value, self::$parsedFilename); |
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| 95 | } |
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| 96 | |||
| 97 | if (null !== $tag && '' !== $tag) { |
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| 98 | return new TaggedValue($tag, $result); |
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| 99 | } |
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| 100 | |||
| 101 | return $result; |
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| 102 | } finally { |
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| 103 | if (isset($mbEncoding)) { |
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| 104 | mb_internal_encoding($mbEncoding); |
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| 105 | } |
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| 106 | } |
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| 107 | } |
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| 108 | |||
| 109 | /** |
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| 110 | * Dumps a given PHP variable to a YAML string. |
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| 111 | * |
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| 112 | * @param mixed $value The PHP variable to convert |
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| 113 | * @param int $flags A bit field of Yaml::DUMP_* constants to customize the dumped YAML string |
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| 114 | * |
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| 115 | * @return string The YAML string representing the PHP value |
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| 116 | * |
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| 117 | * @throws DumpException When trying to dump PHP resource |
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| 118 | */ |
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| 119 | public static function dump($value, int $flags = 0): string |
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| 120 | { |
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| 121 | switch (true) { |
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| 122 | case \is_resource($value): |
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| 123 | if (Yaml::DUMP_EXCEPTION_ON_INVALID_TYPE & $flags) { |
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| 124 | throw new DumpException(sprintf('Unable to dump PHP resources in a YAML file ("%s").', get_resource_type($value))); |
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| 125 | } |
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| 126 | |||
| 127 | return self::dumpNull($flags); |
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| 128 | case $value instanceof \DateTimeInterface: |
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| 129 | return $value->format('c'); |
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| 130 | case \is_object($value): |
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| 131 | if ($value instanceof TaggedValue) { |
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| 132 | return '!'.$value->getTag().' '.self::dump($value->getValue(), $flags); |
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| 133 | } |
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| 134 | |||
| 135 | if (Yaml::DUMP_OBJECT & $flags) { |
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| 136 | return '!php/object '.self::dump(serialize($value)); |
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| 137 | } |
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| 138 | |||
| 139 | if (Yaml::DUMP_OBJECT_AS_MAP & $flags && ($value instanceof \stdClass || $value instanceof \ArrayObject)) { |
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| 140 | $output = []; |
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| 141 | |||
| 142 | foreach ($value as $key => $val) { |
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| 143 | $output[] = sprintf('%s: %s', self::dump($key, $flags), self::dump($val, $flags)); |
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| 144 | } |
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| 145 | |||
| 146 | return sprintf('{ %s }', implode(', ', $output)); |
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| 147 | } |
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| 148 | |||
| 149 | if (Yaml::DUMP_EXCEPTION_ON_INVALID_TYPE & $flags) { |
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| 150 | throw new DumpException('Object support when dumping a YAML file has been disabled.'); |
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| 151 | } |
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| 152 | |||
| 153 | return self::dumpNull($flags); |
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| 154 | case \is_array($value): |
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| 155 | return self::dumpArray($value, $flags); |
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| 156 | case null === $value: |
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| 157 | return self::dumpNull($flags); |
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| 158 | case true === $value: |
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| 159 | return 'true'; |
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| 160 | case false === $value: |
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| 161 | return 'false'; |
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| 162 | case ctype_digit($value): |
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| 163 | return \is_string($value) ? "'$value'" : (int) $value; |
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| 164 | case is_numeric($value): |
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| 165 | $locale = setlocale(LC_NUMERIC, 0); |
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| 166 | if (false !== $locale) { |
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| 167 | setlocale(LC_NUMERIC, 'C'); |
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| 168 | } |
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| 169 | if (\is_float($value)) { |
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| 170 | $repr = (string) $value; |
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| 171 | if (is_infinite($value)) { |
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| 172 | $repr = str_ireplace('INF', '.Inf', $repr); |
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| 173 | } elseif (floor($value) == $value && $repr == $value) { |
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| 174 | // Preserve float data type since storing a whole number will result in integer value. |
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| 175 | $repr = '!!float '.$repr; |
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| 176 | } |
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| 177 | } else { |
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| 178 | $repr = \is_string($value) ? "'$value'" : (string) $value; |
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| 179 | } |
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| 180 | if (false !== $locale) { |
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| 181 | setlocale(LC_NUMERIC, $locale); |
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| 182 | } |
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| 183 | |||
| 184 | return $repr; |
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| 185 | case '' == $value: |
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| 186 | return "''"; |
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| 187 | case self::isBinaryString($value): |
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| 188 | return '!!binary '.base64_encode($value); |
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| 189 | case Escaper::requiresDoubleQuoting($value): |
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| 190 | return Escaper::escapeWithDoubleQuotes($value); |
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| 191 | case Escaper::requiresSingleQuoting($value): |
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| 192 | case Parser::preg_match('{^[0-9]+[_0-9]*$}', $value): |
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| 193 | case Parser::preg_match(self::getHexRegex(), $value): |
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| 194 | case Parser::preg_match(self::getTimestampRegex(), $value): |
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| 195 | return Escaper::escapeWithSingleQuotes($value); |
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| 196 | default: |
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| 197 | return $value; |
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| 198 | } |
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| 199 | } |
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| 200 | |||
| 201 | /** |
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| 202 | * Check if given array is hash or just normal indexed array. |
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| 203 | * |
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| 204 | * @param array|\ArrayObject|\stdClass $value The PHP array or array-like object to check |
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| 205 | * |
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| 206 | * @return bool true if value is hash array, false otherwise |
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| 207 | */ |
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| 208 | public static function isHash($value): bool |
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| 209 | { |
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| 210 | if ($value instanceof \stdClass || $value instanceof \ArrayObject) { |
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| 211 | return true; |
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| 212 | } |
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| 213 | |||
| 214 | $expectedKey = 0; |
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| 215 | |||
| 216 | foreach ($value as $key => $val) { |
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| 217 | if ($key !== $expectedKey++) { |
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| 218 | return true; |
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| 219 | } |
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| 220 | } |
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| 221 | |||
| 222 | return false; |
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| 223 | } |
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| 224 | |||
| 225 | /** |
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| 226 | * Dumps a PHP array to a YAML string. |
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| 227 | * |
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| 228 | * @param array $value The PHP array to dump |
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| 229 | * @param int $flags A bit field of Yaml::DUMP_* constants to customize the dumped YAML string |
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| 230 | * |
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| 231 | * @return string The YAML string representing the PHP array |
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| 232 | */ |
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| 233 | private static function dumpArray(array $value, int $flags): string |
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| 234 | { |
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| 235 | // array |
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| 236 | if (($value || Yaml::DUMP_EMPTY_ARRAY_AS_SEQUENCE & $flags) && !self::isHash($value)) { |
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| 237 | $output = []; |
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| 238 | foreach ($value as $val) { |
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| 239 | $output[] = self::dump($val, $flags); |
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| 240 | } |
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| 241 | |||
| 242 | return sprintf('[%s]', implode(', ', $output)); |
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| 243 | } |
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| 244 | |||
| 245 | // hash |
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| 246 | $output = []; |
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| 247 | foreach ($value as $key => $val) { |
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| 248 | $output[] = sprintf('%s: %s', self::dump($key, $flags), self::dump($val, $flags)); |
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| 249 | } |
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| 250 | |||
| 251 | return sprintf('{ %s }', implode(', ', $output)); |
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| 252 | } |
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| 253 | |||
| 254 | private static function dumpNull(int $flags): string |
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| 255 | { |
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| 256 | if (Yaml::DUMP_NULL_AS_TILDE & $flags) { |
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| 257 | return '~'; |
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| 258 | } |
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| 259 | |||
| 260 | return 'null'; |
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| 261 | } |
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| 262 | |||
| 263 | /** |
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| 264 | * Parses a YAML scalar. |
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| 265 | * |
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| 266 | * @return mixed |
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| 267 | * |
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| 268 | * @throws ParseException When malformed inline YAML string is parsed |
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| 269 | */ |
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| 270 | public static function parseScalar(string $scalar, int $flags = 0, array $delimiters = null, int &$i = 0, bool $evaluate = true, array $references = []) |
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| 271 | { |
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| 272 | if (\in_array($scalar[$i], ['"', "'"], true)) { |
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| 273 | // quoted scalar |
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| 274 | $output = self::parseQuotedScalar($scalar, $i); |
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| 275 | |||
| 276 | if (null !== $delimiters) { |
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| 277 | $tmp = ltrim(substr($scalar, $i), " \n"); |
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| 278 | if ('' === $tmp) { |
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| 279 | throw new ParseException(sprintf('Unexpected end of line, expected one of "%s".', implode('', $delimiters)), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename); |
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| 280 | } |
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| 281 | if (!\in_array($tmp[0], $delimiters)) { |
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| 282 | throw new ParseException(sprintf('Unexpected characters (%s).', substr($scalar, $i)), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename); |
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| 283 | } |
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| 284 | } |
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| 285 | } else { |
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| 286 | // "normal" string |
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| 287 | if (!$delimiters) { |
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| 288 | $output = substr($scalar, $i); |
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| 289 | $i += \strlen($output); |
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| 290 | |||
| 291 | // remove comments |
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| 292 | if (Parser::preg_match('/[ \t]+#/', $output, $match, PREG_OFFSET_CAPTURE)) { |
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| 293 | $output = substr($output, 0, $match[0][1]); |
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| 294 | } |
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| 295 | } elseif (Parser::preg_match('/^(.*?)('.implode('|', $delimiters).')/', substr($scalar, $i), $match)) { |
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| 296 | $output = $match[1]; |
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| 297 | $i += \strlen($output); |
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| 298 | $output = trim($output); |
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| 299 | } else { |
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| 300 | throw new ParseException(sprintf('Malformed inline YAML string: "%s".', $scalar), self::$parsedLineNumber + 1, null, self::$parsedFilename); |
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| 301 | } |
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| 302 | |||
| 303 | // a non-quoted string cannot start with @ or ` (reserved) nor with a scalar indicator (| or >) |
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| 304 | if ($output && ('@' === $output[0] || '`' === $output[0] || '|' === $output[0] || '>' === $output[0] || '%' === $output[0])) { |
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| 305 | throw new ParseException(sprintf('The reserved indicator "%s" cannot start a plain scalar; you need to quote the scalar.', $output[0]), self::$parsedLineNumber + 1, $output, self::$parsedFilename); |
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| 306 | } |
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| 307 | |||
| 308 | if ($evaluate) { |
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| 309 | $output = self::evaluateScalar($output, $flags, $references); |
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| 310 | } |
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| 311 | } |
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| 312 | |||
| 313 | return $output; |
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| 314 | } |
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| 315 | |||
| 316 | /** |
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| 317 | * Parses a YAML quoted scalar. |
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| 318 | * |
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| 319 | * @throws ParseException When malformed inline YAML string is parsed |
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| 320 | */ |
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| 321 | private static function parseQuotedScalar(string $scalar, int &$i): string |
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| 322 | { |
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| 323 | if (!Parser::preg_match('/'.self::REGEX_QUOTED_STRING.'/Au', substr($scalar, $i), $match)) { |
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| 324 | throw new ParseException(sprintf('Malformed inline YAML string: "%s".', substr($scalar, $i)), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename); |
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| 325 | } |
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| 326 | |||
| 327 | $output = substr($match[0], 1, -1); |
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| 328 | |||
| 329 | $unescaper = new Unescaper(); |
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| 330 | if ('"' == $scalar[$i]) { |
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| 331 | $output = $unescaper->unescapeDoubleQuotedString($output); |
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| 332 | } else { |
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| 333 | $output = $unescaper->unescapeSingleQuotedString($output); |
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| 334 | } |
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| 335 | |||
| 336 | $i += \strlen($match[0]); |
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| 337 | |||
| 338 | return $output; |
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| 339 | } |
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| 340 | |||
| 341 | /** |
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| 342 | * Parses a YAML sequence. |
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| 343 | * |
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| 344 | * @throws ParseException When malformed inline YAML string is parsed |
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| 345 | */ |
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| 346 | private static function parseSequence(string $sequence, int $flags, int &$i = 0, array $references = []): array |
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| 347 | { |
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| 348 | $output = []; |
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| 349 | $len = \strlen($sequence); |
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| 350 | ++$i; |
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| 351 | |||
| 352 | // [foo, bar, ...] |
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| 353 | while ($i < $len) { |
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| 354 | if (']' === $sequence[$i]) { |
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| 355 | return $output; |
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| 356 | } |
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| 357 | if (',' === $sequence[$i] || ' ' === $sequence[$i]) { |
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| 358 | ++$i; |
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| 359 | |||
| 360 | continue; |
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| 361 | } |
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| 362 | |||
| 363 | $tag = self::parseTag($sequence, $i, $flags); |
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| 364 | switch ($sequence[$i]) { |
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| 365 | case '[': |
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| 366 | // nested sequence |
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| 367 | $value = self::parseSequence($sequence, $flags, $i, $references); |
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| 368 | break; |
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| 369 | case '{': |
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| 370 | // nested mapping |
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| 371 | $value = self::parseMapping($sequence, $flags, $i, $references); |
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| 372 | break; |
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| 373 | default: |
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| 374 | $isQuoted = \in_array($sequence[$i], ['"', "'"], true); |
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| 375 | $value = self::parseScalar($sequence, $flags, [',', ']'], $i, null === $tag, $references); |
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| 376 | |||
| 377 | // the value can be an array if a reference has been resolved to an array var |
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| 378 | if (\is_string($value) && !$isQuoted && false !== strpos($value, ': ')) { |
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| 379 | // embedded mapping? |
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| 380 | try { |
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| 381 | $pos = 0; |
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| 382 | $value = self::parseMapping('{'.$value.'}', $flags, $pos, $references); |
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| 383 | } catch (\InvalidArgumentException $e) { |
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| 384 | // no, it's not |
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| 385 | } |
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| 386 | } |
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| 387 | |||
| 388 | --$i; |
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| 389 | } |
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| 390 | |||
| 391 | if (null !== $tag && '' !== $tag) { |
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| 392 | $value = new TaggedValue($tag, $value); |
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| 393 | } |
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| 394 | |||
| 395 | $output[] = $value; |
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| 396 | |||
| 397 | ++$i; |
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| 398 | } |
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| 399 | |||
| 400 | throw new ParseException(sprintf('Malformed inline YAML string: "%s".', $sequence), self::$parsedLineNumber + 1, null, self::$parsedFilename); |
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| 401 | } |
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| 402 | |||
| 403 | /** |
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| 404 | * Parses a YAML mapping. |
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| 405 | * |
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| 406 | * @return array|\stdClass |
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| 407 | * |
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| 408 | * @throws ParseException When malformed inline YAML string is parsed |
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| 409 | */ |
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| 410 | private static function parseMapping(string $mapping, int $flags, int &$i = 0, array $references = []) |
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| 411 | { |
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| 412 | $output = []; |
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| 413 | $len = \strlen($mapping); |
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| 414 | ++$i; |
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| 415 | $allowOverwrite = false; |
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| 416 | |||
| 417 | // {foo: bar, bar:foo, ...} |
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| 418 | while ($i < $len) { |
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| 419 | switch ($mapping[$i]) { |
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| 420 | case ' ': |
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| 421 | case ',': |
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| 422 | case "\n": |
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| 423 | ++$i; |
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| 424 | continue 2; |
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| 425 | case '}': |
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| 426 | if (self::$objectForMap) { |
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| 427 | return (object) $output; |
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| 428 | } |
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| 429 | |||
| 430 | return $output; |
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| 431 | } |
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| 432 | |||
| 433 | // key |
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| 434 | $offsetBeforeKeyParsing = $i; |
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| 435 | $isKeyQuoted = \in_array($mapping[$i], ['"', "'"], true); |
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| 436 | $key = self::parseScalar($mapping, $flags, [':', ' '], $i, false, []); |
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| 437 | |||
| 438 | if ($offsetBeforeKeyParsing === $i) { |
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| 439 | throw new ParseException('Missing mapping key.', self::$parsedLineNumber + 1, $mapping); |
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| 440 | } |
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| 441 | |||
| 442 | if ('!php/const' === $key) { |
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| 443 | $key .= ' '.self::parseScalar($mapping, $flags, [':'], $i, false, []); |
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| 444 | $key = self::evaluateScalar($key, $flags); |
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| 445 | } |
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| 446 | |||
| 447 | if (false === $i = strpos($mapping, ':', $i)) { |
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| 448 | break; |
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| 449 | } |
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| 450 | |||
| 451 | if (!$isKeyQuoted) { |
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| 452 | $evaluatedKey = self::evaluateScalar($key, $flags, $references); |
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| 453 | |||
| 454 | if ('' !== $key && $evaluatedKey !== $key && !\is_string($evaluatedKey) && !\is_int($evaluatedKey)) { |
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| 455 | throw new ParseException('Implicit casting of incompatible mapping keys to strings is not supported. Quote your evaluable mapping keys instead.', self::$parsedLineNumber + 1, $mapping); |
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| 456 | } |
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| 457 | } |
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| 458 | |||
| 459 | if (!$isKeyQuoted && (!isset($mapping[$i + 1]) || !\in_array($mapping[$i + 1], [' ', ',', '[', ']', '{', '}', "\n"], true))) { |
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| 460 | throw new ParseException('Colons must be followed by a space or an indication character (i.e. " ", ",", "[", "]", "{", "}").', self::$parsedLineNumber + 1, $mapping); |
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| 461 | } |
||
| 462 | |||
| 463 | if ('<<' === $key) { |
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| 464 | $allowOverwrite = true; |
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| 465 | } |
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| 466 | |||
| 467 | while ($i < $len) { |
||
| 468 | if (':' === $mapping[$i] || ' ' === $mapping[$i] || "\n" === $mapping[$i]) { |
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| 469 | ++$i; |
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| 470 | |||
| 471 | continue; |
||
| 472 | } |
||
| 473 | |||
| 474 | $tag = self::parseTag($mapping, $i, $flags); |
||
| 475 | switch ($mapping[$i]) { |
||
| 476 | case '[': |
||
| 477 | // nested sequence |
||
| 478 | $value = self::parseSequence($mapping, $flags, $i, $references); |
||
| 479 | // Spec: Keys MUST be unique; first one wins. |
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| 480 | // Parser cannot abort this mapping earlier, since lines |
||
| 481 | // are processed sequentially. |
||
| 482 | // But overwriting is allowed when a merge node is used in current block. |
||
| 483 | if ('<<' === $key) { |
||
| 484 | foreach ($value as $parsedValue) { |
||
| 485 | $output += $parsedValue; |
||
| 486 | } |
||
| 487 | } elseif ($allowOverwrite || !isset($output[$key])) { |
||
| 488 | if (null !== $tag) { |
||
| 489 | $output[$key] = new TaggedValue($tag, $value); |
||
| 490 | } else { |
||
| 491 | $output[$key] = $value; |
||
| 492 | } |
||
| 493 | } elseif (isset($output[$key])) { |
||
| 494 | throw new ParseException(sprintf('Duplicate key "%s" detected.', $key), self::$parsedLineNumber + 1, $mapping); |
||
| 495 | } |
||
| 496 | break; |
||
| 497 | case '{': |
||
| 498 | // nested mapping |
||
| 499 | $value = self::parseMapping($mapping, $flags, $i, $references); |
||
| 500 | // Spec: Keys MUST be unique; first one wins. |
||
| 501 | // Parser cannot abort this mapping earlier, since lines |
||
| 502 | // are processed sequentially. |
||
| 503 | // But overwriting is allowed when a merge node is used in current block. |
||
| 504 | if ('<<' === $key) { |
||
| 505 | $output += $value; |
||
| 506 | } elseif ($allowOverwrite || !isset($output[$key])) { |
||
| 507 | if (null !== $tag) { |
||
| 508 | $output[$key] = new TaggedValue($tag, $value); |
||
| 509 | } else { |
||
| 510 | $output[$key] = $value; |
||
| 511 | } |
||
| 512 | } elseif (isset($output[$key])) { |
||
| 513 | throw new ParseException(sprintf('Duplicate key "%s" detected.', $key), self::$parsedLineNumber + 1, $mapping); |
||
| 514 | } |
||
| 515 | break; |
||
| 516 | default: |
||
| 517 | $value = self::parseScalar($mapping, $flags, [',', '}', "\n"], $i, null === $tag, $references); |
||
| 518 | // Spec: Keys MUST be unique; first one wins. |
||
| 519 | // Parser cannot abort this mapping earlier, since lines |
||
| 520 | // are processed sequentially. |
||
| 521 | // But overwriting is allowed when a merge node is used in current block. |
||
| 522 | if ('<<' === $key) { |
||
| 523 | $output += $value; |
||
| 524 | } elseif ($allowOverwrite || !isset($output[$key])) { |
||
| 525 | if (null !== $tag) { |
||
| 526 | $output[$key] = new TaggedValue($tag, $value); |
||
| 527 | } else { |
||
| 528 | $output[$key] = $value; |
||
| 529 | } |
||
| 530 | } elseif (isset($output[$key])) { |
||
| 531 | throw new ParseException(sprintf('Duplicate key "%s" detected.', $key), self::$parsedLineNumber + 1, $mapping); |
||
| 532 | } |
||
| 533 | --$i; |
||
| 534 | } |
||
| 535 | ++$i; |
||
| 536 | |||
| 537 | continue 2; |
||
| 538 | } |
||
| 539 | } |
||
| 540 | |||
| 541 | throw new ParseException(sprintf('Malformed inline YAML string: "%s".', $mapping), self::$parsedLineNumber + 1, null, self::$parsedFilename); |
||
| 542 | } |
||
| 543 | |||
| 544 | /** |
||
| 545 | * Evaluates scalars and replaces magic values. |
||
| 546 | * |
||
| 547 | * @return mixed The evaluated YAML string |
||
| 548 | * |
||
| 549 | * @throws ParseException when object parsing support was disabled and the parser detected a PHP object or when a reference could not be resolved |
||
| 550 | */ |
||
| 551 | private static function evaluateScalar(string $scalar, int $flags, array $references = []) |
||
| 552 | { |
||
| 553 | $scalar = trim($scalar); |
||
| 554 | |||
| 555 | if ('*' === ($scalar[0] ?? '')) { |
||
| 556 | if (false !== $pos = strpos($scalar, '#')) { |
||
| 557 | $value = substr($scalar, 1, $pos - 2); |
||
| 558 | } else { |
||
| 559 | $value = substr($scalar, 1); |
||
| 560 | } |
||
| 561 | |||
| 562 | // an unquoted * |
||
| 563 | if (false === $value || '' === $value) { |
||
| 564 | throw new ParseException('A reference must contain at least one character.', self::$parsedLineNumber + 1, $value, self::$parsedFilename); |
||
| 565 | } |
||
| 566 | |||
| 567 | if (!\array_key_exists($value, $references)) { |
||
| 568 | throw new ParseException(sprintf('Reference "%s" does not exist.', $value), self::$parsedLineNumber + 1, $value, self::$parsedFilename); |
||
| 569 | } |
||
| 570 | |||
| 571 | return $references[$value]; |
||
| 572 | } |
||
| 573 | |||
| 574 | $scalarLower = strtolower($scalar); |
||
| 575 | |||
| 576 | switch (true) { |
||
| 577 | case 'null' === $scalarLower: |
||
| 578 | case '' === $scalar: |
||
| 579 | case '~' === $scalar: |
||
| 580 | return null; |
||
| 581 | case 'true' === $scalarLower: |
||
| 582 | return true; |
||
| 583 | case 'false' === $scalarLower: |
||
| 584 | return false; |
||
| 585 | case '!' === $scalar[0]: |
||
| 586 | switch (true) { |
||
| 587 | case 0 === strncmp($scalar, '!!str ', 6): |
||
| 588 | return (string) substr($scalar, 6); |
||
| 589 | case 0 === strncmp($scalar, '! ', 2): |
||
| 590 | return substr($scalar, 2); |
||
| 591 | case 0 === strncmp($scalar, '!php/object', 11): |
||
| 592 | if (self::$objectSupport) { |
||
| 593 | if (!isset($scalar[12])) { |
||
| 594 | trigger_deprecation('symfony/yaml', '5.1', 'Using the !php/object tag without a value is deprecated.'); |
||
| 595 | |||
| 596 | return false; |
||
| 597 | } |
||
| 598 | |||
| 599 | return unserialize(self::parseScalar(substr($scalar, 12))); |
||
| 600 | } |
||
| 601 | |||
| 602 | if (self::$exceptionOnInvalidType) { |
||
| 603 | throw new ParseException('Object support when parsing a YAML file has been disabled.', self::$parsedLineNumber + 1, $scalar, self::$parsedFilename); |
||
| 604 | } |
||
| 605 | |||
| 606 | return null; |
||
| 607 | case 0 === strncmp($scalar, '!php/const', 10): |
||
| 608 | if (self::$constantSupport) { |
||
| 609 | if (!isset($scalar[11])) { |
||
| 610 | trigger_deprecation('symfony/yaml', '5.1', 'Using the !php/const tag without a value is deprecated.'); |
||
| 611 | |||
| 612 | return ''; |
||
| 613 | } |
||
| 614 | |||
| 615 | $i = 0; |
||
| 616 | if (\defined($const = self::parseScalar(substr($scalar, 11), 0, null, $i, false))) { |
||
| 617 | return \constant($const); |
||
| 618 | } |
||
| 619 | |||
| 620 | throw new ParseException(sprintf('The constant "%s" is not defined.', $const), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename); |
||
| 621 | } |
||
| 622 | if (self::$exceptionOnInvalidType) { |
||
| 623 | throw new ParseException(sprintf('The string "%s" could not be parsed as a constant. Did you forget to pass the "Yaml::PARSE_CONSTANT" flag to the parser?', $scalar), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename); |
||
| 624 | } |
||
| 625 | |||
| 626 | return null; |
||
| 627 | case 0 === strncmp($scalar, '!!float ', 8): |
||
| 628 | return (float) substr($scalar, 8); |
||
| 629 | case 0 === strncmp($scalar, '!!binary ', 9): |
||
| 630 | return self::evaluateBinaryScalar(substr($scalar, 9)); |
||
| 631 | default: |
||
| 632 | throw new ParseException(sprintf('The string "%s" could not be parsed as it uses an unsupported built-in tag.', $scalar), self::$parsedLineNumber, $scalar, self::$parsedFilename); |
||
| 633 | } |
||
| 634 | case preg_match('/^(?:\+|-)?0o(?P<value>[0-7_]++)$/', $scalar, $matches): |
||
| 635 | $value = str_replace('_', '', $matches['value']); |
||
| 636 | |||
| 637 | if ('-' === $scalar[0]) { |
||
| 638 | return -octdec($value); |
||
| 639 | } else { |
||
| 640 | return octdec($value); |
||
| 641 | } |
||
| 642 | |||
| 643 | // Optimize for returning strings. |
||
| 644 | // no break |
||
| 645 | case \in_array($scalar[0], ['+', '-', '.'], true) || is_numeric($scalar[0]): |
||
| 646 | if (Parser::preg_match('{^[+-]?[0-9][0-9_]*$}', $scalar)) { |
||
| 647 | $scalar = str_replace('_', '', (string) $scalar); |
||
| 648 | } |
||
| 649 | |||
| 650 | switch (true) { |
||
| 651 | case ctype_digit($scalar): |
||
| 652 | if ('0' === $scalar[0] && '0' !== $scalar) { |
||
| 653 | trigger_deprecation('symfony/yaml', '5.1', 'Support for parsing numbers prefixed with 0 as octal numbers. They will be parsed as strings as of 6.0.'); |
||
| 654 | |||
| 655 | return octdec(preg_replace('/[^0-7]/', '', $scalar)); |
||
| 656 | } |
||
| 657 | |||
| 658 | $cast = (int) $scalar; |
||
| 659 | |||
| 660 | return ($scalar === (string) $cast) ? $cast : $scalar; |
||
| 661 | case '-' === $scalar[0] && ctype_digit(substr($scalar, 1)): |
||
| 662 | if ('0' === $scalar[1] && '-0' !== $scalar) { |
||
| 663 | trigger_deprecation('symfony/yaml', '5.1', 'Support for parsing numbers prefixed with 0 as octal numbers. They will be parsed as strings as of 6.0.'); |
||
| 664 | |||
| 665 | return -octdec(preg_replace('/[^0-7]/', '', substr($scalar, 1))); |
||
| 666 | } |
||
| 667 | |||
| 668 | $cast = (int) $scalar; |
||
| 669 | |||
| 670 | return ($scalar === (string) $cast) ? $cast : $scalar; |
||
| 671 | case is_numeric($scalar): |
||
| 672 | case Parser::preg_match(self::getHexRegex(), $scalar): |
||
| 673 | $scalar = str_replace('_', '', $scalar); |
||
| 674 | |||
| 675 | return '0x' === $scalar[0].$scalar[1] ? hexdec($scalar) : (float) $scalar; |
||
| 676 | case '.inf' === $scalarLower: |
||
| 677 | case '.nan' === $scalarLower: |
||
| 678 | return -log(0); |
||
| 679 | case '-.inf' === $scalarLower: |
||
| 680 | return log(0); |
||
| 681 | case Parser::preg_match('/^(-|\+)?[0-9][0-9_]*(\.[0-9_]+)?$/', $scalar): |
||
| 682 | return (float) str_replace('_', '', $scalar); |
||
| 683 | case Parser::preg_match(self::getTimestampRegex(), $scalar): |
||
| 684 | if (Yaml::PARSE_DATETIME & $flags) { |
||
| 685 | // When no timezone is provided in the parsed date, YAML spec says we must assume UTC. |
||
| 686 | return new \DateTime($scalar, new \DateTimeZone('UTC')); |
||
| 687 | } |
||
| 688 | |||
| 689 | $timeZone = date_default_timezone_get(); |
||
| 690 | date_default_timezone_set('UTC'); |
||
| 691 | $time = strtotime($scalar); |
||
| 692 | date_default_timezone_set($timeZone); |
||
| 693 | |||
| 694 | return $time; |
||
| 695 | } |
||
| 696 | } |
||
| 697 | |||
| 698 | return (string) $scalar; |
||
| 699 | } |
||
| 700 | |||
| 701 | private static function parseTag(string $value, int &$i, int $flags): ?string |
||
| 702 | { |
||
| 703 | if ('!' !== $value[$i]) { |
||
| 704 | return null; |
||
| 705 | } |
||
| 706 | |||
| 707 | $tagLength = strcspn($value, " \t\n[]{},", $i + 1); |
||
| 708 | $tag = substr($value, $i + 1, $tagLength); |
||
| 709 | |||
| 710 | $nextOffset = $i + $tagLength + 1; |
||
| 711 | $nextOffset += strspn($value, ' ', $nextOffset); |
||
| 712 | |||
| 713 | if ('' === $tag && (!isset($value[$nextOffset]) || \in_array($value[$nextOffset], [']', '}', ','], true))) { |
||
| 714 | throw new ParseException(sprintf('Using the unquoted scalar value "!" is not supported. You must quote it.', $value), self::$parsedLineNumber + 1, $value, self::$parsedFilename); |
||
| 715 | } |
||
| 716 | |||
| 717 | // Is followed by a scalar and is a built-in tag |
||
| 718 | if ('' !== $tag && (!isset($value[$nextOffset]) || !\in_array($value[$nextOffset], ['[', '{'], true)) && ('!' === $tag[0] || 'str' === $tag || 'php/const' === $tag || 'php/object' === $tag)) { |
||
| 719 | // Manage in {@link self::evaluateScalar()} |
||
| 720 | return null; |
||
| 721 | } |
||
| 722 | |||
| 723 | $i = $nextOffset; |
||
| 724 | |||
| 725 | // Built-in tags |
||
| 726 | if ('' !== $tag && '!' === $tag[0]) { |
||
| 727 | throw new ParseException(sprintf('The built-in tag "!%s" is not implemented.', $tag), self::$parsedLineNumber + 1, $value, self::$parsedFilename); |
||
| 728 | } |
||
| 729 | |||
| 730 | if ('' !== $tag && !isset($value[$i])) { |
||
| 731 | throw new ParseException(sprintf('Missing value for tag "%s".', $tag), self::$parsedLineNumber + 1, $value, self::$parsedFilename); |
||
| 732 | } |
||
| 733 | |||
| 734 | if ('' === $tag || Yaml::PARSE_CUSTOM_TAGS & $flags) { |
||
| 735 | return $tag; |
||
| 736 | } |
||
| 737 | |||
| 738 | throw new ParseException(sprintf('Tags support is not enabled. Enable the "Yaml::PARSE_CUSTOM_TAGS" flag to use "!%s".', $tag), self::$parsedLineNumber + 1, $value, self::$parsedFilename); |
||
| 739 | } |
||
| 740 | |||
| 741 | public static function evaluateBinaryScalar(string $scalar): string |
||
| 742 | { |
||
| 743 | $parsedBinaryData = self::parseScalar(preg_replace('/\s/', '', $scalar)); |
||
| 744 | |||
| 745 | if (0 !== (\strlen($parsedBinaryData) % 4)) { |
||
| 746 | throw new ParseException(sprintf('The normalized base64 encoded data (data without whitespace characters) length must be a multiple of four (%d bytes given).', \strlen($parsedBinaryData)), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename); |
||
| 747 | } |
||
| 748 | |||
| 749 | if (!Parser::preg_match('#^[A-Z0-9+/]+={0,2}$#i', $parsedBinaryData)) { |
||
| 750 | throw new ParseException(sprintf('The base64 encoded data (%s) contains invalid characters.', $parsedBinaryData), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename); |
||
| 751 | } |
||
| 752 | |||
| 753 | return base64_decode($parsedBinaryData, true); |
||
| 754 | } |
||
| 755 | |||
| 756 | private static function isBinaryString(string $value): bool |
||
| 757 | { |
||
| 758 | return !preg_match('//u', $value) || preg_match('/[^\x00\x07-\x0d\x1B\x20-\xff]/', $value); |
||
| 759 | } |
||
| 760 | |||
| 761 | /** |
||
| 762 | * Gets a regex that matches a YAML date. |
||
| 763 | * |
||
| 764 | * @return string The regular expression |
||
| 765 | * |
||
| 766 | * @see http://www.yaml.org/spec/1.2/spec.html#id2761573 |
||
| 767 | */ |
||
| 768 | private static function getTimestampRegex(): string |
||
| 769 | { |
||
| 770 | return <<<EOF |
||
| 771 | ~^ |
||
| 772 | (?P<year>[0-9][0-9][0-9][0-9]) |
||
| 773 | -(?P<month>[0-9][0-9]?) |
||
| 774 | -(?P<day>[0-9][0-9]?) |
||
| 775 | (?:(?:[Tt]|[ \t]+) |
||
| 776 | (?P<hour>[0-9][0-9]?) |
||
| 777 | :(?P<minute>[0-9][0-9]) |
||
| 778 | :(?P<second>[0-9][0-9]) |
||
| 779 | (?:\.(?P<fraction>[0-9]*))? |
||
| 780 | (?:[ \t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?) |
||
| 781 | (?::(?P<tz_minute>[0-9][0-9]))?))?)? |
||
| 782 | $~x |
||
| 783 | EOF; |
||
| 784 | } |
||
| 785 | |||
| 786 | /** |
||
| 787 | * Gets a regex that matches a YAML number in hexadecimal notation. |
||
| 788 | */ |
||
| 789 | private static function getHexRegex(): string |
||
| 790 | { |
||
| 791 | return '~^0x[0-9a-f_]++$~i'; |
||
| 792 | } |
||
| 794 |
