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-rwxr-xr-xext/spl/spl.php288
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-<?php
-
-/** Standard PHP Library
- *
- * (c) Marcus Boerger, 2003
- */
-
-/** Abstract base interface that cannot be implemented alone. Instead it
- * must be implemented by either IteratorAggregate or Iterator.
- *
- * \note Internal classes that implement this interface can be used in a
- * foreach construct and do not need to implement IteratorAggregate or
- * Iterator.
- */
-interface Traversable {
-}
-
-/** Interface to create an external Iterator.
- */
-interface IteratorAggregate implements Traversable {
- /** Return an Iterator for the implementing object.
- */
- function getIterator();
-}
-
-/** Interface for external iterators or objects that can be iterated
- * themselves internally.
- */
-interface Iterator implements Traversable {
- /** Rewind the Iterator to the first element.
- */
- function rewind();
-
- /** Return the current element.
- */
- function current();
-
- /** Return the key of the current element.
- */
- function key();
-
- /** Move forward to next element.
- */
- function next();
-
- /** Check if there is a current element after calls to rewind() or next().
- */
- function hasMore();
-}
-
-/** Interface for recursive traversal to be used with
- * RecursiveIteratorIterator.
- */
-interface RecursiveIterator implements Iterator {
- /** \return whether current element can be iterated itself.
- */
- function hasChildren();
-
- /** \return an object that recursively iterates the current element.
- * This object must implement RecursiveIterator.
- */
- function getChildren();
-}
-
-/** Class for recursive traversal. The objects of this class are created by
- * instances of RecursiveIterator. Elements of those iterators may be
- * traversable themselves. If so these sub elements are recursed into.
- */
-class RecursiveIteratorIterator implements Iterator {
- /** Construct an instance form a RecursiveIterator.
- *
- * \param $iterator inner root iterator
- * \param $mode one of
- * - RIT_LEAVES_ONLY do not return elements that can be recursed.
- * - RIT_SELF_FIRST show elements before their sub elements.
- * - RIT_CHILD_FIRST show elements after their sub elements-
- *
- * \note If you want to see only those elements which have sub elements then
- * use a ParentIterator.
- */
- function __construct(RecursiveIterator $iterator, $mode);
-
- /** \return the level of recursion (>=0).
- */
- function getDepth();
-
- /** \param $level the level of the sub iterator to return.
- * \return the current inner sub iterator or the iterator at the
- * specified $level.
- */
- function getSubIterator([$level]);
-}
-
-/** \brief An Array wrapper
- *
- * This array wrapper allows to recursively iterate over Arrays and Objects.
- *
- * \see ArrayIterator
- */
-class ArrayObject implements IteratorAggregate {
-
- /** Construct a new array iterator from anything that has a hash table.
- * That is any Array or Object.
- *
- * \param $array the array to use.
- */
- function __construct($array);
-
- /** Get the iterator which is a ArrayIterator object connected to this
- * object.
- */
- function getIterator();
-}
-
-/** \brief An Array iterator
- *
- * This iterator allows to unset and modify values and keys while iterating
- * over Arrays and Objects.
- *
- * To use this class you must instanciate ArrayObject.
- */
-class ArrayIterator implements Iterator {
-
- /** Construct a new array iterator from anything that has a hash table.
- * That is any Array or Object.
- *
- * \param $array the array to use.
- */
- private function __construct($array);
-
- /** \copydoc Iterator::rewind
- */
- function rewind();
-
- /** \copydoc Iterator::current
- */
- function current();
-
- /** \copydoc Iterator::key
- */
- function key();
-
- /** \copydoc Iterator::next
- */
- function next();
-
- /** \copydoc Iterator::hasMore
- */
- function hasMore();
-}
-
-/** Iterator that wrapps around another iterator and only returns selected
- * elements of the inner iterator.
- */
-abstract class FilterIterator implements Iterator {
- /** Construct an instance form a Iterator.
- *
- * \param $iterator inner iterator
- */
- function __construct(Iterator $iterator);
-
- /** \return whether the current element of the inner iterator should be
- * used as a current element of this iterator or if it should be skipped.
- */
- abstract function accept();
-
- /** \copydoc Iterator::rewind
- */
- function rewind();
-
- /** \copydoc Iterator::current
- */
- function current();
-
- /** \copydoc Iterator::key
- */
- function key();
-
- /** \copydoc Iterator::next
- */
- function next();
-
- /** \copydoc Iterator::hasMore
- */
- function hasMore();
-}
-
-/** A recursive iterator that only returns elements that themselves can be
- * trversed.
- */
-class ParentIterator extends FilterIterator implements RecursiveIterator {
- /** Construct an instance form a RecursiveIterator.
- *
- * \param $iterator inner iterator
- */
- function __construct(RecursiveIterator $iterator);
-
- /** \copydoc RecursiveIterator::hasChildren
- */
- function hasChildren();
-
- /** \copydoc RecursiveIterator::getChildren
- */
- function getChildren();
-
- /** \copydoc Iterator::rewind
- */
- function rewind();
-
- /** \copydoc Iterator::current
- */
- function current();
-
- /** \copydoc Iterator::key
- */
- function key();
-
- /** \copydoc Iterator::next
- */
- function next();
-
- /** \copydoc Iterator::hasMore
- */
- function hasMore();
-}
-
-/** \brief Directory iterator
- */
-class DirectoryIterator implements Iterator {
-
- /** Construct a directory iterator from a path-string.
- *
- * \param $path directory to iterate.
- */
- function __construct($path);
-
- /** \copydoc Iterator::rewind
- */
- function rewind();
-
- /** \copydoc Iterator::current
- */
- function current();
-
- /** \copydoc Iterator::next
- */
- function next();
-
- /** \copydoc Iterator::hasMore
- */
- function hasMore();
-
- /** \return The opened path.
- */
- function getPath();
-
- /** \return The current file name.
- */
- function getFilename();
-
- /** \return The current entries path and file name.
- */
- function getPathname();
-
- /** \return Whether the current entry is a directory.
- */
- function isDir();
-
- /** \return Whether the current entry is either '.' or '..'.
- */
- function isDot();
-}
-
-/** \brief recursive directory iterator
- */
-class RecursiveDirectoryIterator extends DirectoryIterator implements RecursiveIterator {
-
- /** \return whether the current is a directory (not '.' or '..').
- */
- function hasChildren();
-
- /** \return a RecursiveDirectoryIterator for the current entry.
- */
- function getChildren();
-
-}
-
-?> \ No newline at end of file
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