| 1 | <?php |
| 2 | /** |
| 3 | * The Simple PHP YAML Class. |
| 4 | * |
| 5 | * This class can be used to read a YAML file and convert its contents |
| 6 | * into a PHP array. It currently supports a very limited subsection of |
| 7 | * the YAML spec. |
| 8 | * |
| 9 | * Usage: |
| 10 | * <code> |
| 11 | * $parser = new Doctrine_Parser_Spyc; |
| 12 | * $array = $parser->load($file); |
| 13 | * </code> |
| 14 | * @package Doctrine |
| 15 | * @subpackage Spyc |
| 16 | */ |
| 17 | class Doctrine_Parser_Spyc { |
| 18 | |
| 19 | /** |
| 20 | * Load YAML into a PHP array statically |
| 21 | * |
| 22 | * The load method, when supplied with a YAML stream (string or file), |
| 23 | * will do its best to convert YAML in a file into a PHP array. Pretty |
| 24 | * simple. |
| 25 | * Usage: |
| 26 | * <code> |
| 27 | * $array = Doctrine_Parser_Spyc::YAMLLoad('lucky.yaml'); |
| 28 | * print_r($array); |
| 29 | * </code> |
| 30 | * @access public |
| 31 | * @return array |
| 32 | * @param string $input Path of YAML file or string containing YAML |
| 33 | */ |
| 34 | function YAMLLoad($input) { |
| 35 | $spyc = new Doctrine_Parser_Spyc; |
| 36 | return $spyc->load($input); |
| 37 | } |
| 38 | |
| 39 | /** |
| 40 | * Dump YAML from PHP array statically |
| 41 | * |
| 42 | * The dump method, when supplied with an array, will do its best |
| 43 | * to convert the array into friendly YAML. Pretty simple. Feel free to |
| 44 | * save the returned string as nothing.yaml and pass it around. |
| 45 | * |
| 46 | * Oh, and you can decide how big the indent is and what the wordwrap |
| 47 | * for folding is. Pretty cool -- just pass in 'false' for either if |
| 48 | * you want to use the default. |
| 49 | * |
| 50 | * Indent's default is 2 spaces, wordwrap's default is 40 characters. And |
| 51 | * you can turn off wordwrap by passing in 0. |
| 52 | * |
| 53 | * @access public |
| 54 | * @return string |
| 55 | * @param array $array PHP array |
| 56 | * @param int $indent Pass in false to use the default, which is 2 |
| 57 | * @param int $wordwrap Pass in 0 for no wordwrap, false for default (40) |
| 58 | */ |
| 59 | function YAMLDump($array,$indent = false,$wordwrap = false) { |
| 60 | $spyc = new Doctrine_Parser_Spyc; |
| 61 | return $spyc->dump($array,$indent,$wordwrap); |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * Load YAML into a PHP array from an instantiated object |
| 66 | * |
| 67 | * The load method, when supplied with a YAML stream (string or file path), |
| 68 | * will do its best to convert the YAML into a PHP array. Pretty simple. |
| 69 | * Usage: |
| 70 | * <code> |
| 71 | * $parser = new Doctrine_Parser_Spyc; |
| 72 | * $array = $parser->load('lucky.yaml'); |
| 73 | * print_r($array); |
| 74 | * </code> |
| 75 | * @access public |
| 76 | * @return array |
| 77 | * @param string $input Path of YAML file or string containing YAML |
| 78 | */ |
| 79 | function load($input) { |
| 80 | // See what type of input we're talking about |
| 81 | // If it's not a file, assume it's a string |
| 82 | if ( ! empty($input) && (strpos($input, "\n") === false) |
| 83 | && file_exists($input)) { |
| 84 | $yaml = file($input); |
| 85 | } else { |
| 86 | $yaml = explode("\n",$input); |
| 87 | } |
| 88 | // Initiate some objects and values |
| 89 | $base = new Doctrine_Parser_Spyc_YamlNode (1); |
| 90 | $base->indent = 0; |
| 91 | $this->_lastIndent = 0; |
| 92 | $this->_lastNode = $base->id; |
| 93 | $this->_inBlock = false; |
| 94 | $this->_isInline = false; |
| 95 | $this->_nodeId = 2; |
| 96 | |
| 97 | foreach ($yaml as $linenum => $line) { |
| 98 | $ifchk = trim($line); |
| 99 | |
| 100 | // If the line starts with a tab (instead of a space), throw a fit. |
| 101 | if (preg_match('/^(\t)+(\w+)/', $line)) { |
| 102 | $err = 'ERROR: Line '. ($linenum + 1) .' in your input YAML begins'. |
| 103 | ' with a tab. YAML only recognizes spaces. Please reformat.'; |
| 104 | die($err); |
| 105 | } |
| 106 | |
| 107 | if ($this->_inBlock === false && empty($ifchk)) { |
| 108 | continue; |
| 109 | } elseif ($this->_inBlock == true && empty($ifchk)) { |
| 110 | $last =& $this->_allNodes[$this->_lastNode]; |
| 111 | $last->data[key($last->data)] .= "\n"; |
| 112 | } elseif ($ifchk{0} != '#' && substr($ifchk,0,3) != '---') { |
| 113 | // Create a new node and get its indent |
| 114 | $node = new Doctrine_Parser_Spyc_YamlNode ($this->_nodeId); |
| 115 | $this->_nodeId++; |
| 116 | |
| 117 | $node->indent = $this->_getIndent($line); |
| 118 | |
| 119 | // Check where the node lies in the hierarchy |
| 120 | if ($this->_lastIndent == $node->indent) { |
| 121 | // If we're in a block, add the text to the parent's data |
| 122 | if ($this->_inBlock === true) { |
| 123 | $parent =& $this->_allNodes[$this->_lastNode]; |
| 124 | $parent->data[key($parent->data)] .= trim($line).$this->_blockEnd; |
| 125 | } else { |
| 126 | // The current node's parent is the same as the previous node's |
| 127 | if (isset($this->_allNodes[$this->_lastNode])) { |
| 128 | $node->parent = $this->_allNodes[$this->_lastNode]->parent; |
| 129 | } |
| 130 | } |
| 131 | } elseif ($this->_lastIndent < $node->indent) { |
| 132 | if ($this->_inBlock === true) { |
| 133 | $parent =& $this->_allNodes[$this->_lastNode]; |
| 134 | $parent->data[key($parent->data)] .= trim($line).$this->_blockEnd; |
| 135 | } elseif ($this->_inBlock === false) { |
| 136 | // The current node's parent is the previous node |
| 137 | $node->parent = $this->_lastNode; |
| 138 | |
| 139 | // If the value of the last node's data was > or | we need to |
| 140 | // start blocking i.e. taking in all lines as a text value until |
| 141 | // we drop our indent. |
| 142 | $parent =& $this->_allNodes[$node->parent]; |
| 143 | $this->_allNodes[$node->parent]->children = true; |
| 144 | if (is_array($parent->data)) { |
| 145 | $chk = ''; |
| 146 | if (isset ($parent->data[key($parent->data)])) |
| 147 | $chk = $parent->data[key($parent->data)]; |
| 148 | if ($chk === '>') { |
| 149 | $this->_inBlock = true; |
| 150 | $this->_blockEnd = ' '; |
| 151 | $parent->data[key($parent->data)] = |
| 152 | str_replace('>','',$parent->data[key($parent->data)]); |
| 153 | $parent->data[key($parent->data)] .= trim($line).' '; |
| 154 | $this->_allNodes[$node->parent]->children = false; |
| 155 | $this->_lastIndent = $node->indent; |
| 156 | } elseif ($chk === '|') { |
| 157 | $this->_inBlock = true; |
| 158 | $this->_blockEnd = "\n"; |
| 159 | $parent->data[key($parent->data)] = |
| 160 | str_replace('|','',$parent->data[key($parent->data)]); |
| 161 | $parent->data[key($parent->data)] .= trim($line)."\n"; |
| 162 | $this->_allNodes[$node->parent]->children = false; |
| 163 | $this->_lastIndent = $node->indent; |
| 164 | } |
| 165 | } |
| 166 | } |
| 167 | } elseif ($this->_lastIndent > $node->indent) { |
| 168 | // Any block we had going is dead now |
| 169 | if ($this->_inBlock === true) { |
| 170 | $this->_inBlock = false; |
| 171 | if ($this->_blockEnd = "\n") { |
| 172 | $last =& $this->_allNodes[$this->_lastNode]; |
| 173 | $last->data[key($last->data)] = |
| 174 | trim($last->data[key($last->data)]); |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | // We don't know the parent of the node so we have to find it |
| 179 | // foreach ($this->_allNodes as $n) { |
| 180 | foreach ($this->_indentSort[$node->indent] as $n) { |
| 181 | if ($n->indent == $node->indent) { |
| 182 | $node->parent = $n->parent; |
| 183 | } |
| 184 | } |
| 185 | } |
| 186 | |
| 187 | if ($this->_inBlock === false) { |
| 188 | // Set these properties with information from our current node |
| 189 | $this->_lastIndent = $node->indent; |
| 190 | // Set the last node |
| 191 | $this->_lastNode = $node->id; |
| 192 | // Parse the YAML line and return its data |
| 193 | $node->data = $this->_parseLine($line); |
| 194 | // Add the node to the master list |
| 195 | $this->_allNodes[$node->id] = $node; |
| 196 | // Add a reference to the parent list |
| 197 | $this->_allParent[intval($node->parent)][] = $node->id; |
| 198 | // Add a reference to the node in an indent array |
| 199 | $this->_indentSort[$node->indent][] =& $this->_allNodes[$node->id]; |
| 200 | // Add a reference to the node in a References array if this node |
| 201 | // has a YAML reference in it. |
| 202 | if ( |
| 203 | ( (is_array($node->data)) && |
| 204 | isset($node->data[key($node->data)]) && |
| 205 | ( ! is_array($node->data[key($node->data)])) ) |
| 206 | && |
| 207 | ( (preg_match('/^&([^ ]+)/',$node->data[key($node->data)])) |
| 208 | || |
| 209 | (preg_match('/^\*([^ ]+)/',$node->data[key($node->data)])) ) |
| 210 | ) { |
| 211 | $this->_haveRefs[] =& $this->_allNodes[$node->id]; |
| 212 | } elseif ( |
| 213 | ( (is_array($node->data)) && |
| 214 | isset($node->data[key($node->data)]) && |
| 215 | (is_array($node->data[key($node->data)])) ) |
| 216 | ) { |
| 217 | // Incomplete reference making code. Ugly, needs cleaned up. |
| 218 | foreach ($node->data[key($node->data)] as $d) { |
| 219 | if ( !is_array($d) && |
| 220 | ( (preg_match('/^&([^ ]+)/',$d)) |
| 221 | || |
| 222 | (preg_match('/^\*([^ ]+)/',$d)) ) |
| 223 | ) { |
| 224 | $this->_haveRefs[] =& $this->_allNodes[$node->id]; |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | unset($node); |
| 232 | |
| 233 | // Here we travel through node-space and pick out references (& and *) |
| 234 | $this->_linkReferences(); |
| 235 | |
| 236 | // Build the PHP array out of node-space |
| 237 | $trunk = $this->_buildArray(); |
| 238 | return $trunk; |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * Dump PHP array to YAML |
| 243 | * |
| 244 | * The dump method, when supplied with an array, will do its best |
| 245 | * to convert the array into friendly YAML. Pretty simple. Feel free to |
| 246 | * save the returned string as tasteful.yaml and pass it around. |
| 247 | * |
| 248 | * Oh, and you can decide how big the indent is and what the wordwrap |
| 249 | * for folding is. Pretty cool -- just pass in 'false' for either if |
| 250 | * you want to use the default. |
| 251 | * |
| 252 | * Indent's default is 2 spaces, wordwrap's default is 40 characters. And |
| 253 | * you can turn off wordwrap by passing in 0. |
| 254 | * |
| 255 | * @access public |
| 256 | * @return string |
| 257 | * @param array $array PHP array |
| 258 | * @param int $indent Pass in false to use the default, which is 2 |
| 259 | * @param int $wordwrap Pass in 0 for no wordwrap, false for default (40) |
| 260 | */ |
| 261 | function dump($array,$indent = false,$wordwrap = false) { |
| 262 | // Dumps to some very clean YAML. We'll have to add some more features |
| 263 | // and options soon. And better support for folding. |
| 264 | |
| 265 | // New features and options. |
| 266 | if ($indent === false or !is_numeric($indent)) { |
| 267 | $this->_dumpIndent = 2; |
| 268 | } else { |
| 269 | $this->_dumpIndent = $indent; |
| 270 | } |
| 271 | |
| 272 | if ($wordwrap === false or !is_numeric($wordwrap)) { |
| 273 | $this->_dumpWordWrap = 40; |
| 274 | } else { |
| 275 | $this->_dumpWordWrap = $wordwrap; |
| 276 | } |
| 277 | |
| 278 | // New YAML document |
| 279 | $string = "---\n"; |
| 280 | |
| 281 | // Start at the base of the array and move through it. |
| 282 | foreach ($array as $key => $value) { |
| 283 | $string .= $this->_yamlize($key,$value,0); |
| 284 | } |
| 285 | return $string; |
| 286 | } |
| 287 | |
| 288 | /**** Private Properties ****/ |
| 289 | |
| 290 | /**#@+ |
| 291 | * @access private |
| 292 | * @var mixed |
| 293 | */ |
| 294 | var $_haveRefs; |
| 295 | var $_allNodes; |
| 296 | var $_allParent; |
| 297 | var $_lastIndent; |
| 298 | var $_lastNode; |
| 299 | var $_inBlock; |
| 300 | var $_isInline; |
| 301 | var $_dumpIndent; |
| 302 | var $_dumpWordWrap; |
| 303 | |
| 304 | /**#@+*/ |
| 305 | |
| 306 | /**** Public Properties ****/ |
| 307 | |
| 308 | /**#@+ |
| 309 | * @access public |
| 310 | * @var mixed |
| 311 | */ |
| 312 | var $_nodeId; |
| 313 | |
| 314 | /**#@+*/ |
| 315 | |
| 316 | /**** Private Methods ****/ |
| 317 | |
| 318 | /** |
| 319 | * Attempts to convert a key / value array item to YAML |
| 320 | * @access private |
| 321 | * @return string |
| 322 | * @param $key The name of the key |
| 323 | * @param $value The value of the item |
| 324 | * @param $indent The indent of the current node |
| 325 | */ |
| 326 | function _yamlize($key,$value,$indent) { |
| 327 | if (is_array($value)) { |
| 328 | // It has children. What to do? |
| 329 | // Make it the right kind of item |
| 330 | $string = $this->_dumpNode($key,NULL,$indent); |
| 331 | // Add the indent |
| 332 | $indent += $this->_dumpIndent; |
| 333 | // Yamlize the array |
| 334 | $string .= $this->_yamlizeArray($value,$indent); |
| 335 | } elseif ( ! is_array($value)) { |
| 336 | // It doesn't have children. Yip. |
| 337 | $string = $this->_dumpNode($key,$value,$indent); |
| 338 | } |
| 339 | return $string; |
| 340 | } |
| 341 | |
| 342 | /** |
| 343 | * Attempts to convert an array to YAML |
| 344 | * @access private |
| 345 | * @return string |
| 346 | * @param $array The array you want to convert |
| 347 | * @param $indent The indent of the current level |
| 348 | */ |
| 349 | function _yamlizeArray($array,$indent) { |
| 350 | if (is_array($array)) { |
| 351 | $string = ''; |
| 352 | foreach ($array as $key => $value) { |
| 353 | $string .= $this->_yamlize($key,$value,$indent); |
| 354 | } |
| 355 | return $string; |
| 356 | } else { |
| 357 | return false; |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * Returns YAML from a key and a value |
| 363 | * @access private |
| 364 | * @return string |
| 365 | * @param $key The name of the key |
| 366 | * @param $value The value of the item |
| 367 | * @param $indent The indent of the current node |
| 368 | */ |
| 369 | function _dumpNode($key,$value,$indent) { |
| 370 | // do some folding here, for blocks |
| 371 | if (strpos($value,"\n") !== false || strpos($value,": ") !== false || strpos($value,"- ") !== false) { |
| 372 | $value = $this->_doLiteralBlock($value,$indent); |
| 373 | } else { |
| 374 | $value = $this->_doFolding($value,$indent); |
| 375 | } |
| 376 | |
| 377 | if (is_bool($value)) { |
| 378 | $value = ($value) ? "true" : "false"; |
| 379 | } |
| 380 | |
| 381 | $spaces = str_repeat(' ',$indent); |
| 382 | |
| 383 | if (is_int($key)) { |
| 384 | // It's a sequence |
| 385 | $string = $spaces.'- '.$value."\n"; |
| 386 | } else { |
| 387 | // It's mapped |
| 388 | $string = $spaces.$key.': '.$value."\n"; |
| 389 | } |
| 390 | return $string; |
| 391 | } |
| 392 | |
| 393 | /** |
| 394 | * Creates a literal block for dumping |
| 395 | * @access private |
| 396 | * @return string |
| 397 | * @param $value |
| 398 | * @param $indent int The value of the indent |
| 399 | */ |
| 400 | function _doLiteralBlock($value,$indent) { |
| 401 | $exploded = explode("\n",$value); |
| 402 | $newValue = '|'; |
| 403 | $indent += $this->_dumpIndent; |
| 404 | $spaces = str_repeat(' ',$indent); |
| 405 | foreach ($exploded as $line) { |
| 406 | $newValue .= "\n" . $spaces . trim($line); |
| 407 | } |
| 408 | return $newValue; |
| 409 | } |
| 410 | |
| 411 | /** |
| 412 | * Folds a string of text, if necessary |
| 413 | * @access private |
| 414 | * @return string |
| 415 | * @param $value The string you wish to fold |
| 416 | */ |
| 417 | function _doFolding($value,$indent) { |
| 418 | // Don't do anything if wordwrap is set to 0 |
| 419 | if ($this->_dumpWordWrap === 0) { |
| 420 | return $value; |
| 421 | } |
| 422 | |
| 423 | if (strlen($value) > $this->_dumpWordWrap) { |
| 424 | $indent += $this->_dumpIndent; |
| 425 | $indent = str_repeat(' ',$indent); |
| 426 | $wrapped = wordwrap($value,$this->_dumpWordWrap,"\n$indent"); |
| 427 | $value = ">\n".$indent.$wrapped; |
| 428 | } |
| 429 | return $value; |
| 430 | } |
| 431 | |
| 432 | /* Methods used in loading */ |
| 433 | |
| 434 | /** |
| 435 | * Finds and returns the indentation of a YAML line |
| 436 | * @access private |
| 437 | * @return int |
| 438 | * @param string $line A line from the YAML file |
| 439 | */ |
| 440 | function _getIndent($line) { |
| 441 | preg_match('/^\s{1,}/',$line,$match); |
| 442 | if ( ! empty($match[0])) { |
| 443 | $indent = substr_count($match[0],' '); |
| 444 | } else { |
| 445 | $indent = 0; |
| 446 | } |
| 447 | return $indent; |
| 448 | } |
| 449 | |
| 450 | /** |
| 451 | * Parses YAML code and returns an array for a node |
| 452 | * @access private |
| 453 | * @return array |
| 454 | * @param string $line A line from the YAML file |
| 455 | */ |
| 456 | function _parseLine($line) { |
| 457 | $line = trim($line); |
| 458 | |
| 459 | if(!preg_match("/\\\#/", $line)) { |
| 460 | $line = trim(preg_replace('/#.*$/', '', $line)); |
| 461 | } |
| 462 | |
| 463 | $array = array(); |
| 464 | |
| 465 | if (preg_match('/^-(.*):$/',$line)) { |
| 466 | // It's a mapped sequence |
| 467 | $key = trim(substr(substr($line,1),0,-1)); |
| 468 | $array[$key] = ''; |
| 469 | } elseif ($line[0] == '-' && substr($line,0,3) != '---') { |
| 470 | // It's a list item but not a new stream |
| 471 | if (strlen($line) > 1) { |
| 472 | $value = trim(substr($line,1)); |
| 473 | // Set the type of the value. Int, string, etc |
| 474 | $value = $this->_toType($value); |
| 475 | $array[] = $value; |
| 476 | } else { |
| 477 | $array[] = array(); |
| 478 | } |
| 479 | } elseif (preg_match('/^(.+):/',$line,$key)) { |
| 480 | // It's a key/value pair most likely |
| 481 | // If the key is in double quotes pull it out |
| 482 | if (preg_match('/^(["\'](.*)["\'](\s)*:)/',$line,$matches)) { |
| 483 | $value = trim(str_replace($matches[1],'',$line)); |
| 484 | $key = $matches[2]; |
| 485 | } else { |
| 486 | // Do some guesswork as to the key and the value |
| 487 | $explode = explode(':',$line); |
| 488 | $key = trim($explode[0]); |
| 489 | array_shift($explode); |
| 490 | $value = trim(implode(':',$explode)); |
| 491 | } |
| 492 | |
| 493 | // Set the type of the value. Int, string, etc |
| 494 | $value = $this->_toType($value); |
| 495 | if (empty($key)) { |
| 496 | $array[] = $value; |
| 497 | } else { |
| 498 | $array[$key] = $value; |
| 499 | } |
| 500 | } |
| 501 | return $array; |
| 502 | } |
| 503 | |
| 504 | /** |
| 505 | * Finds the type of the passed value, returns the value as the new type. |
| 506 | * @access private |
| 507 | * @param string $value |
| 508 | * @return mixed |
| 509 | */ |
| 510 | function _toType($value) { |
| 511 | if (preg_match('/^("(.*)"|\'(.*)\')/',$value,$matches)) { |
| 512 | $value = (string)preg_replace('/(\'\'|\\\\\')/',"'",end($matches)); |
| 513 | $value = preg_replace('/\\\\"/','"',$value); |
| 514 | } elseif (preg_match('/^\\[(.+)\\]$/',$value,$matches)) { |
| 515 | // Inline Sequence |
| 516 | |
| 517 | // Take out strings sequences and mappings |
| 518 | $explode = $this->_inlineEscape($matches[1]); |
| 519 | |
| 520 | // Propogate value array |
| 521 | $value = array(); |
| 522 | foreach ($explode as $v) { |
| 523 | $value[] = $this->_toType($v); |
| 524 | } |
| 525 | } elseif (strpos($value,': ')!==false && !preg_match('/^{(.+)/',$value)) { |
| 526 | // It's a map |
| 527 | $array = explode(': ',$value); |
| 528 | $key = trim($array[0]); |
| 529 | array_shift($array); |
| 530 | $value = trim(implode(': ',$array)); |
| 531 | $value = $this->_toType($value); |
| 532 | $value = array($key => $value); |
| 533 | } elseif (preg_match("/{(.+)}$/",$value,$matches)) { |
| 534 | // Inline Mapping |
| 535 | |
| 536 | // Take out strings sequences and mappings |
| 537 | $explode = $this->_inlineEscape($matches[1]); |
| 538 | |
| 539 | // Propogate value array |
| 540 | $array = array(); |
| 541 | foreach ($explode as $v) { |
| 542 | $array = $array + $this->_toType($v); |
| 543 | } |
| 544 | $value = $array; |
| 545 | } elseif (strtolower($value) == 'null' or $value == '' or $value == '~') { |
| 546 | $value = NULL; |
| 547 | } elseif (preg_match ('/^[0-9]+$/', $value)) { |
| 548 | // Cheeky change for compartibility with PHP < 4.2.0 |
| 549 | $value = (int)$value; |
| 550 | } elseif (in_array(strtolower($value), |
| 551 | array('true', 'on', '+', 'yes', 'y'))) { |
| 552 | $value = true; |
| 553 | } elseif (in_array(strtolower($value), |
| 554 | array('false', 'off', '-', 'no', 'n'))) { |
| 555 | $value = false; |
| 556 | } elseif (is_numeric($value)) { |
| 557 | $value = (float)$value; |
| 558 | } else { |
| 559 | // Just a normal string, right? |
| 560 | $value = trim(preg_replace('/#(.+)$/','',$value)); |
| 561 | } |
| 562 | |
| 563 | return $value; |
| 564 | } |
| 565 | |
| 566 | /** |
| 567 | * Used in inlines to check for more inlines or quoted strings |
| 568 | * @access private |
| 569 | * @return array |
| 570 | */ |
| 571 | function _inlineEscape($inline) { |
| 572 | // There's gotta be a cleaner way to do this... |
| 573 | // While pure sequences seem to be nesting just fine, |
| 574 | // pure mappings and mappings with sequences inside can't go very |
| 575 | // deep. This needs to be fixed. |
| 576 | |
| 577 | $saved_strings = array(); |
| 578 | |
| 579 | // Check for strings |
| 580 | $regex = '/(?:(")|(?:\'))((?(1)[^"]+|[^\']+))(?(1)"|\')/'; |
| 581 | if (preg_match_all($regex,$inline,$strings)) { |
| 582 | $saved_strings = $strings[0]; |
| 583 | $inline = preg_replace($regex,'YAMLString',$inline); |
| 584 | } |
| 585 | unset($regex); |
| 586 | |
| 587 | // Check for sequences |
| 588 | if (preg_match_all('/\[(.+)\]/U',$inline,$seqs)) { |
| 589 | $inline = preg_replace('/\[(.+)\]/U','YAMLSeq',$inline); |
| 590 | $seqs = $seqs[0]; |
| 591 | } |
| 592 | |
| 593 | // Check for mappings |
| 594 | if (preg_match_all('/{(.+)}/U',$inline,$maps)) { |
| 595 | $inline = preg_replace('/{(.+)}/U','YAMLMap',$inline); |
| 596 | $maps = $maps[0]; |
| 597 | } |
| 598 | |
| 599 | $explode = explode(', ',$inline); |
| 600 | |
| 601 | |
| 602 | // Re-add the sequences |
| 603 | if ( ! empty($seqs)) { |
| 604 | $i = 0; |
| 605 | foreach ($explode as $key => $value) { |
| 606 | if (strpos($value,'YAMLSeq') !== false) { |
| 607 | $explode[$key] = str_replace('YAMLSeq',$seqs[$i],$value); |
| 608 | ++$i; |
| 609 | } |
| 610 | } |
| 611 | } |
| 612 | |
| 613 | // Re-add the mappings |
| 614 | if ( ! empty($maps)) { |
| 615 | $i = 0; |
| 616 | foreach ($explode as $key => $value) { |
| 617 | if (strpos($value,'YAMLMap') !== false) { |
| 618 | $explode[$key] = str_replace('YAMLMap',$maps[$i],$value); |
| 619 | ++$i; |
| 620 | } |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | // Re-add the strings |
| 625 | if ( ! empty($saved_strings)) { |
| 626 | $i = 0; |
| 627 | foreach ($explode as $key => $value) { |
| 628 | while (strpos($value,'YAMLString') !== false) { |
| 629 | $explode[$key] = preg_replace('/YAMLString/',$saved_strings[$i],$value, 1); |
| 630 | ++$i; |
| 631 | $value = $explode[$key]; |
| 632 | } |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | return $explode; |
| 637 | } |
| 638 | |
| 639 | /** |
| 640 | * Builds the PHP array from all the YAML nodes we've gathered |
| 641 | * @access private |
| 642 | * @return array |
| 643 | */ |
| 644 | function _buildArray() { |
| 645 | $trunk = array(); |
| 646 | |
| 647 | if ( ! isset($this->_indentSort[0])) { |
| 648 | return $trunk; |
| 649 | } |
| 650 | |
| 651 | foreach ($this->_indentSort[0] as $n) { |
| 652 | if (empty($n->parent)) { |
| 653 | $this->_nodeArrayizeData($n); |
| 654 | // Check for references and copy the needed data to complete them. |
| 655 | $this->_makeReferences($n); |
| 656 | // Merge our data with the big array we're building |
| 657 | $trunk = $this->_array_kmerge($trunk,$n->data); |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | return $trunk; |
| 662 | } |
| 663 | |
| 664 | /** |
| 665 | * Traverses node-space and sets references (& and *) accordingly |
| 666 | * @access private |
| 667 | * @return bool |
| 668 | */ |
| 669 | function _linkReferences() { |
| 670 | if (is_array($this->_haveRefs)) { |
| 671 | foreach ($this->_haveRefs as $node) { |
| 672 | if ( ! empty($node->data)) { |
| 673 | $key = key($node->data); |
| 674 | // If it's an array, don't check. |
| 675 | if (is_array($node->data[$key])) { |
| 676 | foreach ($node->data[$key] as $k => $v) { |
| 677 | $this->_linkRef($node,$key,$k,$v); |
| 678 | } |
| 679 | } else { |
| 680 | $this->_linkRef($node,$key); |
| 681 | } |
| 682 | } |
| 683 | } |
| 684 | } |
| 685 | return true; |
| 686 | } |
| 687 | |
| 688 | function _linkRef(&$n,$key,$k = NULL,$v = NULL) { |
| 689 | if (empty($k) && empty($v)) { |
| 690 | // Look for &refs |
| 691 | if (preg_match('/^&([^ ]+)/',$n->data[$key],$matches)) { |
| 692 | // Flag the node so we know it's a reference |
| 693 | $this->_allNodes[$n->id]->ref = substr($matches[0],1); |
| 694 | $this->_allNodes[$n->id]->data[$key] = |
| 695 | substr($n->data[$key],strlen($matches[0])+1); |
| 696 | // Look for *refs |
| 697 | } elseif (preg_match('/^\*([^ ]+)/',$n->data[$key],$matches)) { |
| 698 | $ref = substr($matches[0],1); |
| 699 | // Flag the node as having a reference |
| 700 | $this->_allNodes[$n->id]->refKey = $ref; |
| 701 | } |
| 702 | } elseif ( ! empty($k) && !empty($v)) { |
| 703 | if (preg_match('/^&([^ ]+)/',$v,$matches)) { |
| 704 | // Flag the node so we know it's a reference |
| 705 | $this->_allNodes[$n->id]->ref = substr($matches[0],1); |
| 706 | $this->_allNodes[$n->id]->data[$key][$k] = |
| 707 | substr($v,strlen($matches[0])+1); |
| 708 | // Look for *refs |
| 709 | } elseif (preg_match('/^\*([^ ]+)/',$v,$matches)) { |
| 710 | $ref = substr($matches[0],1); |
| 711 | // Flag the node as having a reference |
| 712 | $this->_allNodes[$n->id]->refKey = $ref; |
| 713 | } |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | /** |
| 718 | * Finds the children of a node and aids in the building of the PHP array |
| 719 | * @access private |
| 720 | * @param int $nid The id of the node whose children we're gathering |
| 721 | * @return array |
| 722 | */ |
| 723 | function _gatherChildren($nid) { |
| 724 | $return = array(); |
| 725 | $node =& $this->_allNodes[$nid]; |
| 726 | if (is_array ($this->_allParent[$node->id])) { |
| 727 | foreach ($this->_allParent[$node->id] as $nodeZ) { |
| 728 | $z =& $this->_allNodes[$nodeZ]; |
| 729 | // We found a child |
| 730 | $this->_nodeArrayizeData($z); |
| 731 | // Check for references |
| 732 | $this->_makeReferences($z); |
| 733 | // Merge with the big array we're returning |
| 734 | // The big array being all the data of the children of our parent node |
| 735 | $return = $this->_array_kmerge($return,$z->data); |
| 736 | } |
| 737 | } |
| 738 | return $return; |
| 739 | } |
| 740 | |
| 741 | /** |
| 742 | * Turns a node's data and its children's data into a PHP array |
| 743 | * |
| 744 | * @access private |
| 745 | * @param array $node The node which you want to arrayize |
| 746 | * @return boolean |
| 747 | */ |
| 748 | function _nodeArrayizeData(&$node) { |
| 749 | if (is_array($node->data) && $node->children == true) { |
| 750 | // This node has children, so we need to find them |
| 751 | $childs = $this->_gatherChildren($node->id); |
| 752 | // We've gathered all our children's data and are ready to use it |
| 753 | $key = key($node->data); |
| 754 | $key = empty($key) ? 0 : $key; |
| 755 | // If it's an array, add to it of course |
| 756 | if (isset ($node->data[$key])) { |
| 757 | if (is_array($node->data[$key])) { |
| 758 | $node->data[$key] = $this->_array_kmerge($node->data[$key],$childs); |
| 759 | } else { |
| 760 | $node->data[$key] = $childs; |
| 761 | } |
| 762 | } else { |
| 763 | $node->data[$key] = $childs; |
| 764 | } |
| 765 | } elseif ( ! is_array($node->data) && $node->children == true) { |
| 766 | // Same as above, find the children of this node |
| 767 | $childs = $this->_gatherChildren($node->id); |
| 768 | $node->data = array(); |
| 769 | $node->data[] = $childs; |
| 770 | } |
| 771 | |
| 772 | // We edited $node by reference, so just return true |
| 773 | return true; |
| 774 | } |
| 775 | |
| 776 | /** |
| 777 | * Traverses node-space and copies references to / from this object. |
| 778 | * @access private |
| 779 | * @param object $z A node whose references we wish to make real |
| 780 | * @return bool |
| 781 | */ |
| 782 | function _makeReferences(&$z) { |
| 783 | // It is a reference |
| 784 | if (isset($z->ref)) { |
| 785 | $key = key($z->data); |
| 786 | // Copy the data to this object for easy retrieval later |
| 787 | $this->ref[$z->ref] =& $z->data[$key]; |
| 788 | // It has a reference |
| 789 | } elseif (isset($z->refKey)) { |
| 790 | if (isset($this->ref[$z->refKey])) { |
| 791 | $key = key($z->data); |
| 792 | // Copy the data from this object to make the node a real reference |
| 793 | $z->data[$key] =& $this->ref[$z->refKey]; |
| 794 | } |
| 795 | } |
| 796 | return true; |
| 797 | } |
| 798 | |
| 799 | |
| 800 | /** |
| 801 | * Merges arrays and maintains numeric keys. |
| 802 | * |
| 803 | * An ever-so-slightly modified version of the array_kmerge() function posted |
| 804 | * to php.net by mail at nospam dot iaindooley dot com on 2004-04-08. |
| 805 | * |
| 806 | * http://us3.php.net/manual/en/function.array-merge.php#41394 |
| 807 | * |
| 808 | * @access private |
| 809 | * @param array $arr1 |
| 810 | * @param array $arr2 |
| 811 | * @return array |
| 812 | */ |
| 813 | function _array_kmerge($arr1,$arr2) { |
| 814 | if( ! is_array($arr1)) $arr1 = array(); |
| 815 | if( ! is_array($arr2)) $arr2 = array(); |
| 816 | |
| 817 | $keys = array_merge(array_keys($arr1),array_keys($arr2)); |
| 818 | $vals = array_merge(array_values($arr1),array_values($arr2)); |
| 819 | $ret = array(); |
| 820 | foreach($keys as $key) { |
| 821 | list($unused,$val) = each($vals); |
| 822 | if (isset($ret[$key]) and is_int($key)) $ret[] = $val; else $ret[$key] = $val; |
| 823 | } |
| 824 | return $ret; |
| 825 | } |
| 826 | } |
| 827 | ?> |