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wmdeit_kaform/Spyc.php

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<?php
/**
* Spyc -- A Simple PHP YAML Class
* @version 0.6.2
* @author Vlad Andersen <vlad.andersen@gmail.com>
* @author Chris Wanstrath <chris@ozmm.org>
* @link https://github.com/mustangostang/spyc/
* @copyright Copyright 2005-2006 Chris Wanstrath, 2006-2011 Vlad Andersen
* @license http://www.opensource.org/licenses/mit-license.php MIT License
* @package Spyc
*/
if (!function_exists('spyc_load')) {
/**
* Parses YAML to array.
* @param string $string YAML string.
* @return array
*/
function spyc_load ($string) {
return Spyc::YAMLLoadString($string);
}
}
if (!function_exists('spyc_load_file')) {
/**
* Parses YAML to array.
* @param string $file Path to YAML file.
* @return array
*/
function spyc_load_file ($file) {
return Spyc::YAMLLoad($file);
}
}
if (!function_exists('spyc_dump')) {
/**
* Dumps array to YAML.
* @param array $data Array.
* @return string
*/
function spyc_dump ($data) {
return Spyc::YAMLDump($data, false, false, true);
}
}
if (!class_exists('Spyc')) {
/**
* The Simple PHP YAML Class.
*
* This class can be used to read a YAML file and convert its contents
* into a PHP array. It currently supports a very limited subsection of
* the YAML spec.
*
* Usage:
* <code>
* $Spyc = new Spyc;
* $array = $Spyc->load($file);
* </code>
* or:
* <code>
* $array = Spyc::YAMLLoad($file);
* </code>
* or:
* <code>
* $array = spyc_load_file($file);
* </code>
* @package Spyc
*/
class Spyc {
// SETTINGS
const REMPTY = "\0\0\0\0\0";
/**
* Setting this to true will force YAMLDump to enclose any string value in
* quotes. False by default.
*
* @var bool
*/
public $setting_dump_force_quotes = false;
/**
* Setting this to true will forse YAMLLoad to use syck_load function when
* possible. False by default.
* @var bool
*/
public $setting_use_syck_is_possible = false;
/**
* Setting this to true will forse YAMLLoad to use syck_load function when
* possible. False by default.
* @var bool
*/
public $setting_empty_hash_as_object = false;
/**#@+
* @access private
* @var mixed
*/
private $_dumpIndent;
private $_dumpWordWrap;
private $_containsGroupAnchor = false;
private $_containsGroupAlias = false;
private $path;
private $result;
private $LiteralPlaceHolder = '___YAML_Literal_Block___';
private $SavedGroups = array();
private $indent;
/**
* Path modifier that should be applied after adding current element.
* @var array
*/
private $delayedPath = array();
/**#@+
* @access public
* @var mixed
*/
public $_nodeId;
/**
* Load a valid YAML string to Spyc.
* @param string $input
* @return array
*/
public function load ($input) {
return $this->_loadString($input);
}
/**
* Load a valid YAML file to Spyc.
* @param string $file
* @return array
*/
public function loadFile ($file) {
return $this->_load($file);
}
/**
* Load YAML into a PHP array statically
*
* The load method, when supplied with a YAML stream (string or file),
* will do its best to convert YAML in a file into a PHP array. Pretty
* simple.
* Usage:
* <code>
* $array = Spyc::YAMLLoad('lucky.yaml');
* print_r($array);
* </code>
* @access public
* @return array
* @param string $input Path of YAML file or string containing YAML
* @param array set options
*/
public static function YAMLLoad($input, $options = []) {
$Spyc = new Spyc;
foreach ($options as $key => $value) {
if (property_exists($Spyc, $key)) {
$Spyc->$key = $value;
}
}
return $Spyc->_load($input);
}
/**
* Load a string of YAML into a PHP array statically
*
* The load method, when supplied with a YAML string, will do its best
* to convert YAML in a string into a PHP array. Pretty simple.
*
* Note: use this function if you don't want files from the file system
* loaded and processed as YAML. This is of interest to people concerned
* about security whose input is from a string.
*
* Usage:
* <code>
* $array = Spyc::YAMLLoadString("---\n0: hello world\n");
* print_r($array);
* </code>
* @access public
* @return array
* @param string $input String containing YAML
* @param array set options
*/
public static function YAMLLoadString($input, $options = []) {
$Spyc = new Spyc;
foreach ($options as $key => $value) {
if (property_exists($Spyc, $key)) {
$Spyc->$key = $value;
}
}
return $Spyc->_loadString($input);
}
/**
* Dump YAML from PHP array statically
*
* The dump method, when supplied with an array, will do its best
* to convert the array into friendly YAML. Pretty simple. Feel free to
* save the returned string as nothing.yaml and pass it around.
*
* Oh, and you can decide how big the indent is and what the wordwrap
* for folding is. Pretty cool -- just pass in 'false' for either if
* you want to use the default.
*
* Indent's default is 2 spaces, wordwrap's default is 40 characters. And
* you can turn off wordwrap by passing in 0.
*
* @access public
* @return string
* @param array|\stdClass $array PHP array
* @param int $indent Pass in false to use the default, which is 2
* @param int $wordwrap Pass in 0 for no wordwrap, false for default (40)
* @param bool $no_opening_dashes Do not start YAML file with "---\n"
*/
public static function YAMLDump($array, $indent = false, $wordwrap = false, $no_opening_dashes = false) {
$spyc = new Spyc;
return $spyc->dump($array, $indent, $wordwrap, $no_opening_dashes);
}
/**
* Dump PHP array to YAML
*
* The dump method, when supplied with an array, will do its best
* to convert the array into friendly YAML. Pretty simple. Feel free to
* save the returned string as tasteful.yaml and pass it around.
*
* Oh, and you can decide how big the indent is and what the wordwrap
* for folding is. Pretty cool -- just pass in 'false' for either if
* you want to use the default.
*
* Indent's default is 2 spaces, wordwrap's default is 40 characters. And
* you can turn off wordwrap by passing in 0.
*
* @access public
* @return string
* @param array $array PHP array
* @param int $indent Pass in false to use the default, which is 2
* @param int $wordwrap Pass in 0 for no wordwrap, false for default (40)
*/
public function dump($array,$indent = false,$wordwrap = false, $no_opening_dashes = false) {
// Dumps to some very clean YAML. We'll have to add some more features
// and options soon. And better support for folding.
// New features and options.
if ($indent === false or !is_numeric($indent)) {
$this->_dumpIndent = 2;
} else {
$this->_dumpIndent = $indent;
}
if ($wordwrap === false or !is_numeric($wordwrap)) {
$this->_dumpWordWrap = 40;
} else {
$this->_dumpWordWrap = $wordwrap;
}
// New YAML document
$string = "";
if (!$no_opening_dashes) $string = "---\n";
// Start at the base of the array and move through it.
if ($array) {
$array = (array)$array;
$previous_key = -1;
foreach ($array as $key => $value) {
if (!isset($first_key)) $first_key = $key;
$string .= $this->_yamlize($key,$value,0,$previous_key, $first_key, $array);
$previous_key = $key;
}
}
return $string;
}
/**
* Attempts to convert a key / value array item to YAML
* @access private
* @return string
* @param $key The name of the key
* @param $value The value of the item
* @param $indent The indent of the current node
*/
private function _yamlize($key,$value,$indent, $previous_key = -1, $first_key = 0, $source_array = null) {
if(is_object($value)) $value = (array)$value;
if (is_array($value)) {
if (empty ($value))
return $this->_dumpNode($key, array(), $indent, $previous_key, $first_key, $source_array);
// It has children. What to do?
// Make it the right kind of item
$string = $this->_dumpNode($key, self::REMPTY, $indent, $previous_key, $first_key, $source_array);
// Add the indent
$indent += $this->_dumpIndent;
// Yamlize the array
$string .= $this->_yamlizeArray($value,$indent);
} elseif (!is_array($value)) {
// It doesn't have children. Yip.
$string = $this->_dumpNode($key, $value, $indent, $previous_key, $first_key, $source_array);
}
return $string;
}
/**
* Attempts to convert an array to YAML
* @access private
* @return string
* @param $array The array you want to convert
* @param $indent The indent of the current level
*/
private function _yamlizeArray($array,$indent) {
if (is_array($array)) {
$string = '';
$previous_key = -1;
foreach ($array as $key => $value) {
if (!isset($first_key)) $first_key = $key;
$string .= $this->_yamlize($key, $value, $indent, $previous_key, $first_key, $array);
$previous_key = $key;
}
return $string;
} else {
return false;
}
}
/**
* Returns YAML from a key and a value
* @access private
* @return string
* @param $key The name of the key
* @param $value The value of the item
* @param $indent The indent of the current node
*/
private function _dumpNode($key, $value, $indent, $previous_key = -1, $first_key = 0, $source_array = null) {
// do some folding here, for blocks
if (is_string ($value) && ((strpos($value,"\n") !== false || strpos($value,": ") !== false || strpos($value,"- ") !== false ||
strpos($value,"*") !== false || strpos($value,"#") !== false || strpos($value,"<") !== false || strpos($value,">") !== false || strpos ($value, '%') !== false || strpos ($value, ' ') !== false ||
strpos($value,"[") !== false || strpos($value,"]") !== false || strpos($value,"{") !== false || strpos($value,"}") !== false) || strpos($value,"&") !== false || strpos($value, "'") !== false || strpos($value, "!") === 0 ||
substr ($value, -1, 1) == ':')
) {
$value = $this->_doLiteralBlock($value,$indent);
} else {
$value = $this->_doFolding($value,$indent);
}
if ($value === array()) $value = '[ ]';
if ($value === "") $value = '""';
if (self::isTranslationWord($value)) {
$value = $this->_doLiteralBlock($value, $indent);
}
if (trim ($value) != $value)
$value = $this->_doLiteralBlock($value,$indent);
if (is_bool($value)) {
$value = $value ? "true" : "false";
}
if ($value === null) $value = 'null';
if ($value === "'" . self::REMPTY . "'") $value = null;
$spaces = str_repeat(' ',$indent);
//if (is_int($key) && $key - 1 == $previous_key && $first_key===0) {
if (is_array ($source_array) && array_keys($source_array) === range(0, count($source_array) - 1)) {
// It's a sequence
$string = $spaces.'- '.$value."\n";
} else {
// if ($first_key===0) throw new Exception('Keys are all screwy. The first one was zero, now it\'s "'. $key .'"');
// It's mapped
if (strpos($key, ":") !== false || strpos($key, "#") !== false) { $key = '"' . $key . '"'; }
$string = rtrim ($spaces.$key.': '.$value)."\n";
}
return $string;
}
/**
* Creates a literal block for dumping
* @access private
* @return string
* @param $value
* @param $indent int The value of the indent
*/
private function _doLiteralBlock($value,$indent) {
if ($value === "\n") return '\n';
if (strpos($value, "\n") === false && strpos($value, "'") === false) {
return sprintf ("'%s'", $value);
}
if (strpos($value, "\n") === false && strpos($value, '"') === false) {
return sprintf ('"%s"', $value);
}
$exploded = explode("\n",$value);
$newValue = '|';
if (isset($exploded[0]) && ($exploded[0] == "|" || $exploded[0] == "|-" || $exploded[0] == ">")) {
$newValue = $exploded[0];
unset($exploded[0]);
}
$indent += $this->_dumpIndent;
$spaces = str_repeat(' ',$indent);
foreach ($exploded as $line) {
$line = trim($line);
if (strpos($line, '"') === 0 && strrpos($line, '"') == (strlen($line)-1) || strpos($line, "'") === 0 && strrpos($line, "'") == (strlen($line)-1)) {
$line = substr($line, 1, -1);
}
$newValue .= "\n" . $spaces . ($line);
}
return $newValue;
}
/**
* Folds a string of text, if necessary
* @access private
* @return string
* @param $value The string you wish to fold
*/
private function _doFolding($value,$indent) {
// Don't do anything if wordwrap is set to 0
if ($this->_dumpWordWrap !== 0 && is_string ($value) && strlen($value) > $this->_dumpWordWrap) {
$indent += $this->_dumpIndent;
$indent = str_repeat(' ',$indent);
$wrapped = wordwrap($value,$this->_dumpWordWrap,"\n$indent");
$value = ">\n".$indent.$wrapped;
} else {
if ($this->setting_dump_force_quotes && is_string ($value) && $value !== self::REMPTY)
$value = '"' . $value . '"';
if (is_numeric($value) && is_string($value))
$value = '"' . $value . '"';
}
return $value;
}
private function isTrueWord($value) {
$words = self::getTranslations(array('true', 'on', 'yes', 'y'));
return in_array($value, $words, true);
}
private function isFalseWord($value) {
$words = self::getTranslations(array('false', 'off', 'no', 'n'));
return in_array($value, $words, true);
}
private function isNullWord($value) {
$words = self::getTranslations(array('null', '~'));
return in_array($value, $words, true);
}
private function isTranslationWord($value) {
return (
self::isTrueWord($value) ||
self::isFalseWord($value) ||
self::isNullWord($value)
);
}
/**
* Coerce a string into a native type
* Reference: http://yaml.org/type/bool.html
* TODO: Use only words from the YAML spec.
* @access private
* @param $value The value to coerce
*/
private function coerceValue(&$value) {
if (self::isTrueWord($value)) {
$value = true;
} else if (self::isFalseWord($value)) {
$value = false;
} else if (self::isNullWord($value)) {
$value = null;
}
}
/**
* Given a set of words, perform the appropriate translations on them to
* match the YAML 1.1 specification for type coercing.
* @param $words The words to translate
* @access private
*/
private static function getTranslations(array $words) {
$result = array();
foreach ($words as $i) {
$result = array_merge($result, array(ucfirst($i), strtoupper($i), strtolower($i)));
}
return $result;
}
// LOADING FUNCTIONS
private function _load($input) {
$Source = $this->loadFromSource($input);
return $this->loadWithSource($Source);
}
private function _loadString($input) {
$Source = $this->loadFromString($input);
return $this->loadWithSource($Source);
}
private function loadWithSource($Source) {
if (empty ($Source)) return array();
if ($this->setting_use_syck_is_possible && function_exists ('syck_load')) {
$array = syck_load (implode ("\n", $Source));
return is_array($array) ? $array : array();
}
$this->path = array();
$this->result = array();
$cnt = count($Source);
for ($i = 0; $i < $cnt; $i++) {
$line = $Source[$i];
$this->indent = strlen($line) - strlen(ltrim($line));
$tempPath = $this->getParentPathByIndent($this->indent);
$line = self::stripIndent($line, $this->indent);
if (self::isComment($line)) continue;
if (self::isEmpty($line)) continue;
$this->path = $tempPath;
$literalBlockStyle = self::startsLiteralBlock($line);
if ($literalBlockStyle) {
$line = rtrim ($line, $literalBlockStyle . " \n");
$literalBlock = '';
$line .= ' '.$this->LiteralPlaceHolder;
$literal_block_indent = strlen($Source[$i+1]) - strlen(ltrim($Source[$i+1]));
while (++$i < $cnt && $this->literalBlockContinues($Source[$i], $this->indent)) {
$literalBlock = $this->addLiteralLine($literalBlock, $Source[$i], $literalBlockStyle, $literal_block_indent);
}
$i--;
}
// Strip out comments
if (strpos ($line, '#')) {
$line = preg_replace('/\s*#([^"\']+)$/','',$line);
}
while (++$i < $cnt && self::greedilyNeedNextLine($line)) {
$line = rtrim ($line, " \n\t\r") . ' ' . ltrim ($Source[$i], " \t");
}
$i--;
$lineArray = $this->_parseLine($line);
if ($literalBlockStyle)
$lineArray = $this->revertLiteralPlaceHolder ($lineArray, $literalBlock);
$this->addArray($lineArray, $this->indent);
foreach ($this->delayedPath as $indent => $delayedPath)
$this->path[$indent] = $delayedPath;
$this->delayedPath = array();
}
return $this->result;
}
private function loadFromSource ($input) {
if (!empty($input) && strpos($input, "\n") === false && file_exists($input))
$input = file_get_contents($input);
return $this->loadFromString($input);
}
private function loadFromString ($input) {
$lines = explode("\n",$input);
foreach ($lines as $k => $_) {
$lines[$k] = rtrim ($_, "\r");
}
return $lines;
}
/**
* Parses YAML code and returns an array for a node
* @access private
* @return array
* @param string $line A line from the YAML file
*/
private function _parseLine($line) {
if (!$line) return array();
$line = trim($line);
if (!$line) return array();
$array = array();
$group = $this->nodeContainsGroup($line);
if ($group) {
$this->addGroup($line, $group);
$line = $this->stripGroup ($line, $group);
}
if ($this->startsMappedSequence($line)) {
return $this->returnMappedSequence($line);
}
if ($this->startsMappedValue($line)) {
return $this->returnMappedValue($line);
}
if ($this->isArrayElement($line))
return $this->returnArrayElement($line);
if ($this->isPlainArray($line))
return $this->returnPlainArray($line);
return $this->returnKeyValuePair($line);
}
/**
* Finds the type of the passed value, returns the value as the new type.
* @access private
* @param string $value
* @return mixed
*/
private function _toType($value) {
if ($value === '') return "";
if ($this->setting_empty_hash_as_object && $value === '{}') {
return new stdClass();
}
$first_character = $value[0];
$last_character = substr($value, -1, 1);
$is_quoted = false;
do {
if (!$value) break;
if ($first_character != '"' && $first_character != "'") break;
if ($last_character != '"' && $last_character != "'") break;
$is_quoted = true;
} while (0);
if ($is_quoted) {
$value = str_replace('\n', "\n", $value);
if ($first_character == "'")
return strtr(substr ($value, 1, -1), array ('\'\'' => '\'', '\\\''=> '\''));
return strtr(substr ($value, 1, -1), array ('\\"' => '"', '\\\''=> '\''));
}
if (strpos($value, ' #') !== false && !$is_quoted)
$value = preg_replace('/\s+#(.+)$/','',$value);
if ($first_character == '[' && $last_character == ']') {
// Take out strings sequences and mappings
$innerValue = trim(substr ($value, 1, -1));
if ($innerValue === '') return array();
$explode = $this->_inlineEscape($innerValue);
// Propagate value array
$value = array();
foreach ($explode as $v) {
$value[] = $this->_toType($v);
}
return $value;
}
if (strpos($value,': ')!==false && $first_character != '{') {
$array = explode(': ',$value);
$key = trim($array[0]);
array_shift($array);
$value = trim(implode(': ',$array));
$value = $this->_toType($value);
return array($key => $value);
}
if ($first_character == '{' && $last_character == '}') {
$innerValue = trim(substr ($value, 1, -1));
if ($innerValue === '') return array();
// Inline Mapping
// Take out strings sequences and mappings
$explode = $this->_inlineEscape($innerValue);
// Propagate value array
$array = array();
foreach ($explode as $v) {
$SubArr = $this->_toType($v);
if (empty($SubArr)) continue;
if (is_array ($SubArr)) {
$array[key($SubArr)] = $SubArr[key($SubArr)]; continue;
}
$array[] = $SubArr;
}
return $array;
}
if ($value == 'null' || $value == 'NULL' || $value == 'Null' || $value == '' || $value == '~') {
return null;
}
if ( is_numeric($value) && preg_match ('/^(-|)[1-9]+[0-9]*$/', $value) ){
$intvalue = (int)$value;
if ($intvalue != PHP_INT_MAX && $intvalue != ~PHP_INT_MAX)
$value = $intvalue;
return $value;
}
if ( is_string($value) && preg_match('/^0[xX][0-9a-fA-F]+$/', $value)) {
// Hexadecimal value.
return hexdec($value);
}
$this->coerceValue($value);
if (is_numeric($value)) {
if ($value === '0') return 0;
if (rtrim ($value, 0) === $value)
$value = (float)$value;
return $value;
}
return $value;
}
/**
* Used in inlines to check for more inlines or quoted strings
* @access private
* @return array
*/
private function _inlineEscape($inline) {
// There's gotta be a cleaner way to do this...
// While pure sequences seem to be nesting just fine,
// pure mappings and mappings with sequences inside can't go very
// deep. This needs to be fixed.
$seqs = array();
$maps = array();
$saved_strings = array();
$saved_empties = array();
// Check for empty strings
$regex = '/("")|(\'\')/';
if (preg_match_all($regex,$inline,$strings)) {
$saved_empties = $strings[0];
$inline = preg_replace($regex,'YAMLEmpty',$inline);
}
unset($regex);
// Check for strings
$regex = '/(?:(")|(?:\'))((?(1)[^"]+|[^\']+))(?(1)"|\')/';
if (preg_match_all($regex,$inline,$strings)) {
$saved_strings = $strings[0];
$inline = preg_replace($regex,'YAMLString',$inline);
}
unset($regex);
// echo $inline;
$i = 0;
do {
// Check for sequences
while (preg_match('/\[([^{}\[\]]+)\]/U',$inline,$matchseqs)) {
$seqs[] = $matchseqs[0];
$inline = preg_replace('/\[([^{}\[\]]+)\]/U', ('YAMLSeq' . (count($seqs) - 1) . 's'), $inline, 1);
}
// Check for mappings
while (preg_match('/{([^\[\]{}]+)}/U',$inline,$matchmaps)) {
$maps[] = $matchmaps[0];
$inline = preg_replace('/{([^\[\]{}]+)}/U', ('YAMLMap' . (count($maps) - 1) . 's'), $inline, 1);
}
if ($i++ >= 10) break;
} while (strpos ($inline, '[') !== false || strpos ($inline, '{') !== false);
$explode = explode(',',$inline);
$explode = array_map('trim', $explode);
$stringi = 0; $i = 0;
while (1) {
// Re-add the sequences
if (!empty($seqs)) {
foreach ($explode as $key => $value) {
if (strpos($value,'YAMLSeq') !== false) {
foreach ($seqs as $seqk => $seq) {
$explode[$key] = str_replace(('YAMLSeq'.$seqk.'s'),$seq,$value);
$value = $explode[$key];
}
}
}
}
// Re-add the mappings
if (!empty($maps)) {
foreach ($explode as $key => $value) {
if (strpos($value,'YAMLMap') !== false) {
foreach ($maps as $mapk => $map) {
$explode[$key] = str_replace(('YAMLMap'.$mapk.'s'), $map, $value);
$value = $explode[$key];
}
}
}
}
// Re-add the strings
if (!empty($saved_strings)) {
foreach ($explode as $key => $value) {
while (strpos($value,'YAMLString') !== false) {
$explode[$key] = preg_replace('/YAMLString/',$saved_strings[$stringi],$value, 1);
unset($saved_strings[$stringi]);
++$stringi;
$value = $explode[$key];
}
}
}
// Re-add the empties
if (!empty($saved_empties)) {
foreach ($explode as $key => $value) {
while (strpos($value,'YAMLEmpty') !== false) {
$explode[$key] = preg_replace('/YAMLEmpty/', '', $value, 1);
$value = $explode[$key];
}
}
}
$finished = true;
foreach ($explode as $key => $value) {
if (strpos($value,'YAMLSeq') !== false) {
$finished = false; break;
}
if (strpos($value,'YAMLMap') !== false) {
$finished = false; break;
}
if (strpos($value,'YAMLString') !== false) {
$finished = false; break;
}
if (strpos($value,'YAMLEmpty') !== false) {
$finished = false; break;
}
}
if ($finished) break;
$i++;
if ($i > 10)
break; // Prevent infinite loops.
}
return $explode;
}
private function literalBlockContinues ($line, $lineIndent) {
if (!trim($line)) return true;
if (strlen($line) - strlen(ltrim($line)) > $lineIndent) return true;
return false;
}
private function referenceContentsByAlias ($alias) {
do {
if (!isset($this->SavedGroups[$alias])) { echo "Bad group name: $alias."; break; }
$groupPath = $this->SavedGroups[$alias];
$value = $this->result;
foreach ($groupPath as $k) {
$value = $value[$k];
}
} while (false);
return $value;
}
private function addArrayInline ($array, $indent) {
$CommonGroupPath = $this->path;
if (empty ($array)) return false;
foreach ($array as $k => $_) {
$this->addArray(array($k => $_), $indent);
$this->path = $CommonGroupPath;
}
return true;
}
private function addArray ($incoming_data, $incoming_indent) {
// print_r ($incoming_data);
if (count ($incoming_data) > 1)
return $this->addArrayInline ($incoming_data, $incoming_indent);
$key = key ($incoming_data);
$value = isset($incoming_data[$key]) ? $incoming_data[$key] : null;
if ($key === '__!YAMLZero') $key = '0';
if ($incoming_indent == 0 && !$this->_containsGroupAlias && !$this->_containsGroupAnchor) { // Shortcut for root-level values.
if ($key || $key === '' || $key === '0') {
$this->result[$key] = $value;
} else {
$this->result[] = $value; end ($this->result); $key = key ($this->result);
}
$this->path[$incoming_indent] = $key;
return;
}
$history = array();
// Unfolding inner array tree.
$history[] = $_arr = $this->result;
foreach ($this->path as $k) {
$history[] = $_arr = $_arr[$k];
}
if ($this->_containsGroupAlias) {
$value = $this->referenceContentsByAlias($this->_containsGroupAlias);
$this->_containsGroupAlias = false;
}
// Adding string or numeric key to the innermost level or $this->arr.
if (is_string($key) && $key == '<<') {
if (!is_array ($_arr)) { $_arr = array (); }
$_arr = array_merge ($_arr, $value);
} else if ($key || $key === '' || $key === '0') {
if (!is_array ($_arr))
$_arr = array ($key=>$value);
else
$_arr[$key] = $value;
} else {
if (!is_array ($_arr)) { $_arr = array ($value); $key = 0; }
else { $_arr[] = $value; end ($_arr); $key = key ($_arr); }
}
$reverse_path = array_reverse($this->path);
$reverse_history = array_reverse ($history);
$reverse_history[0] = $_arr;
$cnt = count($reverse_history) - 1;
for ($i = 0; $i < $cnt; $i++) {
$reverse_history[$i+1][$reverse_path[$i]] = $reverse_history[$i];
}
$this->result = $reverse_history[$cnt];
$this->path[$incoming_indent] = $key;
if ($this->_containsGroupAnchor) {
$this->SavedGroups[$this->_containsGroupAnchor] = $this->path;
if (is_array ($value)) {
$k = key ($value);
if (!is_int ($k)) {
$this->SavedGroups[$this->_containsGroupAnchor][$incoming_indent + 2] = $k;
}
}
$this->_containsGroupAnchor = false;
}
}
private static function startsLiteralBlock ($line) {
$lastChar = substr (trim($line), -1);
if ($lastChar != '>' && $lastChar != '|') return false;
if ($lastChar == '|') return $lastChar;
// HTML tags should not be counted as literal blocks.
if (preg_match ('#<.*?>$#', $line)) return false;
return $lastChar;
}
private static function greedilyNeedNextLine($line) {
$line = trim ($line);
if (!strlen($line)) return false;
if (substr ($line, -1, 1) == ']') return false;
if ($line[0] == '[') return true;
if (preg_match ('#^[^:]+?:\s*\[#', $line)) return true;
return false;
}
private function addLiteralLine ($literalBlock, $line, $literalBlockStyle, $indent = -1) {
$line = self::stripIndent($line, $indent);
if ($literalBlockStyle !== '|') {
$line = self::stripIndent($line);
}
$line = rtrim ($line, "\r\n\t ") . "\n";
if ($literalBlockStyle == '|') {
return $literalBlock . $line;
}
if (strlen($line) == 0)
return rtrim($literalBlock, ' ') . "\n";
if ($line == "\n" && $literalBlockStyle == '>') {
return rtrim ($literalBlock, " \t") . "\n";
}
if ($line != "\n")
$line = trim ($line, "\r\n ") . " ";
return $literalBlock . $line;
}
function revertLiteralPlaceHolder ($lineArray, $literalBlock) {
foreach ($lineArray as $k => $_) {
if (is_array($_))
$lineArray[$k] = $this->revertLiteralPlaceHolder ($_, $literalBlock);
else if (substr($_, -1 * strlen ($this->LiteralPlaceHolder)) == $this->LiteralPlaceHolder)
$lineArray[$k] = rtrim ($literalBlock, " \r\n");
}
return $lineArray;
}
private static function stripIndent ($line, $indent = -1) {
if ($indent == -1) $indent = strlen($line) - strlen(ltrim($line));
return substr ($line, $indent);
}
private function getParentPathByIndent ($indent) {
if ($indent == 0) return array();
$linePath = $this->path;
do {
end($linePath); $lastIndentInParentPath = key($linePath);
if ($indent <= $lastIndentInParentPath) array_pop ($linePath);
} while ($indent <= $lastIndentInParentPath);
return $linePath;
}
private function clearBiggerPathValues ($indent) {
if ($indent == 0) $this->path = array();
if (empty ($this->path)) return true;
foreach ($this->path as $k => $_) {
if ($k > $indent) unset ($this->path[$k]);
}
return true;
}
private static function isComment ($line) {
if (!$line) return false;
if ($line[0] == '#') return true;
if (trim($line, " \r\n\t") == '---') return true;
return false;
}
private static function isEmpty ($line) {
return (trim ($line) === '');
}
private function isArrayElement ($line) {
if (!$line || !is_scalar($line)) return false;
if (substr($line, 0, 2) != '- ') return false;
if (strlen ($line) > 3)
if (substr($line,0,3) == '---') return false;
return true;
}
private function isHashElement ($line) {
return strpos($line, ':');
}
private function isLiteral ($line) {
if ($this->isArrayElement($line)) return false;
if ($this->isHashElement($line)) return false;
return true;
}
private static function unquote ($value) {
if (!$value) return $value;
if (!is_string($value)) return $value;
if ($value[0] == '\'') return trim ($value, '\'');
if ($value[0] == '"') return trim ($value, '"');
return $value;
}
private function startsMappedSequence ($line) {
return (substr($line, 0, 2) == '- ' && substr ($line, -1, 1) == ':');
}
private function returnMappedSequence ($line) {
$array = array();
$key = self::unquote(trim(substr($line,1,-1)));
$array[$key] = array();
$this->delayedPath = array(strpos ($line, $key) + $this->indent => $key);
return array($array);
}
private function checkKeysInValue($value) {
if (strchr('[{"\'', $value[0]) === false) {
if (strchr($value, ': ') !== false) {
throw new Exception('Too many keys: '.$value);
}
}
}
private function returnMappedValue ($line) {
$this->checkKeysInValue($line);
$array = array();
$key = self::unquote (trim(substr($line,0,-1)));
$array[$key] = '';
return $array;
}
private function startsMappedValue ($line) {
return (substr ($line, -1, 1) == ':');
}
private function isPlainArray ($line) {
return ($line[0] == '[' && substr ($line, -1, 1) == ']');
}
private function returnPlainArray ($line) {
return $this->_toType($line);
}
private function returnKeyValuePair ($line) {
$array = array();
$key = '';
if (strpos ($line, ': ')) {
// It's a key/value pair most likely
// If the key is in double quotes pull it out
if (($line[0] == '"' || $line[0] == "'") && preg_match('/^(["\'](.*)["\'](\s)*:)/',$line,$matches)) {
$value = trim(str_replace($matches[1],'',$line));
$key = $matches[2];
} else {
// Do some guesswork as to the key and the value
$explode = explode(': ', $line);
$key = trim(array_shift($explode));
$value = trim(implode(': ', $explode));
$this->checkKeysInValue($value);
}
// Set the type of the value. Int, string, etc
$value = $this->_toType($value);
if ($key === '0') $key = '__!YAMLZero';
$array[$key] = $value;
} else {
$array = array ($line);
}
return $array;
}
private function returnArrayElement ($line) {
if (strlen($line) <= 1) return array(array()); // Weird %)
$array = array();
$value = trim(substr($line,1));
$value = $this->_toType($value);
if ($this->isArrayElement($value)) {
$value = $this->returnArrayElement($value);
}
$array[] = $value;
return $array;
}
private function nodeContainsGroup ($line) {
$symbolsForReference = 'A-z0-9_\-';
if (strpos($line, '&') === false && strpos($line, '*') === false) return false; // Please die fast ;-)
if ($line[0] == '&' && preg_match('/^(&['.$symbolsForReference.']+)/', $line, $matches)) return $matches[1];
if ($line[0] == '*' && preg_match('/^(\*['.$symbolsForReference.']+)/', $line, $matches)) return $matches[1];
if (preg_match('/(&['.$symbolsForReference.']+)$/', $line, $matches)) return $matches[1];
if (preg_match('/(\*['.$symbolsForReference.']+$)/', $line, $matches)) return $matches[1];
if (preg_match ('#^\s*<<\s*:\s*(\*[^\s]+).*$#', $line, $matches)) return $matches[1];
return false;
}
private function addGroup ($line, $group) {
if ($group[0] == '&') $this->_containsGroupAnchor = substr ($group, 1);
if ($group[0] == '*') $this->_containsGroupAlias = substr ($group, 1);
//print_r ($this->path);
}
private function stripGroup ($line, $group) {
$line = trim(str_replace($group, '', $line));
return $line;
}
}
}
// Enable use of Spyc from command line
// The syntax is the following: php Spyc.php spyc.yaml
do {
if (PHP_SAPI != 'cli') break;
if (empty ($_SERVER['argc']) || $_SERVER['argc'] < 2) break;
if (empty ($_SERVER['PHP_SELF']) || FALSE === strpos ($_SERVER['PHP_SELF'], 'Spyc.php') ) break;
$file = $argv[1];
echo json_encode (spyc_load_file ($file));
} while (0);
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