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- MFH Update example

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This commit is contained in:
Marcus Boerger 2005-10-03 13:36:18 +00:00
parent 48d9adc3f0
commit 31f8d7dc20
1 changed files with 48 additions and 4 deletions
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52
ext/spl/examples/recursivetreeiterator.inc
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@ -26,17 +26,61 @@ class RecursiveTreeIterator extends RecursiveIteratorIterator
$this->callToString = (bool)($cit_flags & CachingIterator::CALL_TOSTRING);
}
/** @return prefix used if $level < depth and hasNext($level) == true
*/
function getPrefix1()
{
return '| ';
}
/** @return prefix used if $level < depth and hasNext($level) == false
*/
function getPrefix2()
{
return ' ';
}
/** @return prefix used if $level == depth and hasNext($level) == true
*/
function getPrefix3()
{
return '|-';
}
/** @return prefix used if $level == depth and hasNext($level) == false
*/
function getPrefix4()
{
return '\-';
}
function getPrefix($level)
{
if ($level < 0 || $level > $this->getDepth())
{
throw new OutOfBoundsException('Parameter $level must be >= 0 and <= depth');
}
if ($level < $this->getDepth())
{
return $this->getSubIterator($level)->hasNext() ? $this->getPrefix1() : $this->getPrefix2();
}
else
{
return $this->getSubIterator($level)->hasNext() ? $this->getPrefix3() : $this->getPrefix4();
}
}
/** @return the current element prefixed with ASCII graphics
*/
function current()
{
$tree = '';
for ($l=0; $l < $this->getDepth(); $l++) {
$tree .= $this->getSubIterator($l)->hasNext() ? '| ' : ' ';
for ($l=0; $l <= $this->getDepth(); $l++)
{
$tree .= $this->getPrefix($l);
}
return $tree . ($this->getSubIterator($l)->hasNext() ? '|-' : '\-')
. ($this->callToString ? $this->getSubIterator($l)->__toString() : $this->getSubIterator($l)->current());
return $tree . ($this->callToString ? $this->__toString() : parent::current());
}
/** Aggregates the inner iterator