Annotation of embedaddon/php/ext/spl/internal/recursivetreeiterator.inc, revision 1.1
1.1 ! misho 1: <?php
! 2:
! 3: /** @file recursivetreeiterator.inc
! 4: * @ingroup SPL
! 5: * @brief class RecursiveTreeIterator
! 6: * @author Marcus Boerger, Johannes Schlueter
! 7: * @date 2005 - 2009
! 8: *
! 9: * SPL - Standard PHP Library
! 10: */
! 11:
! 12:
! 13: /** @ingroup SPL
! 14: * @brief RecursiveIteratorIterator to generate ASCII graphic trees for the
! 15: * entries in a RecursiveIterator
! 16: * @author Marcus Boerger, Johannes Schlueter
! 17: * @version 1.1
! 18: * @since PHP 5.3
! 19: */
! 20: class RecursiveTreeIterator extends RecursiveIteratorIterator
! 21: {
! 22: const BYPASS_CURRENT = 0x00000004;
! 23: const BYPASS_KEY = 0x00000008;
! 24:
! 25: private $rit_flags;
! 26:
! 27: /**
! 28: * @param it iterator to use as inner iterator
! 29: * @param rit_flags flags passed to RecursiveIteratoIterator (parent)
! 30: * @param cit_flags flags passed to RecursiveCachingIterator (for hasNext)
! 31: * @param mode mode passed to RecursiveIteratoIterator (parent)
! 32: */
! 33: function __construct(RecursiveIterator $it, $rit_flags = self::BYPASS_KEY, $cit_flags = CachingIterator::CATCH_GET_CHILD, $mode = self::SELF_FIRST)
! 34: {
! 35: parent::__construct(new RecursiveCachingIterator($it, $cit_flags), $mode, $rit_flags);
! 36: $this->rit_flags = $rit_flags;
! 37: }
! 38:
! 39: private $prefix = array(0=>'', 1=>'| ', 2=>' ', 3=>'|-', 4=>'\-', 5=>'');
! 40:
! 41: /** Prefix used to start elements. */
! 42: const PREFIX_LEFT = 0;
! 43: /** Prefix used if $level < depth and hasNext($level) == true. */
! 44: const PREFIX_MID_HAS_NEXT = 1;
! 45: /** Prefix used if $level < depth and hasNext($level) == false. */
! 46: const PREFIX_MID_LAST = 2;
! 47: /** Prefix used if $level == depth and hasNext($level) == true. */
! 48: const PREFIX_END_HAS_NEXT = 3;
! 49: /** Prefix used if $level == depth and hasNext($level) == false. */
! 50: const PREFIX_END_LAST = 4;
! 51: /** Prefix used right in front of the current element. */
! 52: const PREFIX_RIGHT = 5;
! 53:
! 54: /**
! 55: * Set prefix part as used in getPrefix() and stored in $prefix.
! 56: * @param $part any PREFIX_* const.
! 57: * @param $value new prefix string for specified part.
! 58: * @throws OutOfRangeException if 0 > $part or $part > 5.
! 59: */
! 60: function setPrefixPart($part, $value)
! 61: {
! 62: if (0 > $part || $part > 5) {
! 63: throw new OutOfRangeException();
! 64: }
! 65: $this->prefix[$part] = (string)$value;
! 66: }
! 67:
! 68: /** @return string to place in front of current element
! 69: */
! 70: function getPrefix()
! 71: {
! 72: $tree = '';
! 73: for ($level = 0; $level < $this->getDepth(); $level++)
! 74: {
! 75: $tree .= $this->getSubIterator($level)->hasNext() ? $this->prefix[1] : $this->prefix[2];
! 76: }
! 77: $tree .= $this->getSubIterator($level)->hasNext() ? $this->prefix[3] : $this->prefix[4];
! 78:
! 79: return $this->prefix[0] . $tree . $this->prefix[5];
! 80: }
! 81:
! 82: /** @return string presentation build for current element
! 83: */
! 84: function getEntry()
! 85: {
! 86: return @(string)parent::current();
! 87: }
! 88:
! 89: /** @return string to place after the current element
! 90: */
! 91: function getPostfix()
! 92: {
! 93: return '';
! 94: }
! 95:
! 96: /** @return the current element prefixed and postfixed
! 97: */
! 98: function current()
! 99: {
! 100: if ($this->rit_flags & self::BYPASS_CURRENT)
! 101: {
! 102: return parent::current();
! 103: }
! 104: else
! 105: {
! 106: return $this->getPrefix() . $this->getEntry() . $this->getPostfix();
! 107: }
! 108: }
! 109:
! 110: /** @return the current key prefixed and postfixed
! 111: */
! 112: function key()
! 113: {
! 114: if ($this->rit_flags & self::BYPASS_KEY)
! 115: {
! 116: return parent::key();
! 117: }
! 118: else
! 119: {
! 120: return $this->getPrefix() . parent::key() . $this->getPostfix();
! 121: }
! 122: }
! 123:
! 124: /** Aggregates the inner iterator
! 125: */
! 126: function __call($func, $params)
! 127: {
! 128: return call_user_func_array(array($this->getSubIterator(), $func), $params);
! 129: }
! 130: }
! 131:
! 132: ?>
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