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134 lines
2.7 KiB
PHP
Executable File
134 lines
2.7 KiB
PHP
Executable File
<?php
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/**
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* @brief Subdirectory aware directory iterator.
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* @author Marcus Boerger
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* @version 1.0
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*
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* This directory iterator recursively returns all files and directories
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* within a given path.
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*/
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class sub_dir implements spl_sequence
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{
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protected $adir = array();
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protected $cnt = 0;
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protected $path = '';
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protected $curr = '';
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protected $nodots = true;
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/**
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* Construct a directory from a path.
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*
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* @param path The path to iterate.
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* @param nodots Whether or not to display the entries '.' and '..'.
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*/
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function __construct($path, $nodots = true, $graph = false) {
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$this->cnt = 0;
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$this->path = $path;
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$this->nodots = $nodots;
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$this->graph = $graph;
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}
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/**
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* Rewind the directory.
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*
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* @return void
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*/
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function rewind() {
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while($this->cnt) {
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unset($this->adir[$this->cnt--]);
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}
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$dir = new spl_dir($this->path);
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$dir->path = "";
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$this->adir[1] = $dir;
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$this->cnt = 1;
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if ($this->nodots) {
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while ($dir->hasMore()) {
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$ent = $dir->current();
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if ($ent != '.' && $ent != '..') {
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break;
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}
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$dir->next();
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}
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}
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}
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/**
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* Move to net dir or file entry.
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*
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* @return void
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*/
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function next() {
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if ($this->cnt) {
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$dir = $this->adir[$this->cnt];
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$ent = $dir->current();
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$path = $dir->getPath().'/'.$ent;
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if ($ent != '.' && $ent != '..' && is_dir($path)) {
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$new = new spl_dir($path);
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$new->path = $dir->path.$ent.'/';
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$new->cnt = $this->cnt++;
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$this->adir[$this->cnt] = $new;
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if ($this->nodots) {
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$dir->has_more = false;
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while ($new->hasMore()) {
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$ent = $new->current();
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if ($ent != '.' && $ent != '..') {
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$dir->has_more = true;
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break;
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}
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$new->next();
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}
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} else {
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$dir->has_more = $dir->hasMore();
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}
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}
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$dir->next();
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}
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}
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/**
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* @return Whether more dirs or files entries are available.
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*/
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function hasMore() {
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while ($this->cnt) {
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$dir = $this->adir[$this->cnt];
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if ($dir->hasMore()) {
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return true;
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}
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unset($this->adir[$this->cnt--]);
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}
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return false;
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}
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/**
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* @return The current dir or file entry.
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*/
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function current() {
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if ($this->cnt) {
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if ($this->graph) {
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$prefix = '';
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for ($i = 1; $i < $this->cnt; $i++) {
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$dir = $this->adir[$i];
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$prefix .= $dir->hasMore() ? '| ' : ' ';
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}
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$dir = $this->adir[$this->cnt];
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$ent = $dir->current();
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$prefix .= $dir->hasMore() ? '+-' : '\-';
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return $prefix . $ent;
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} else {
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$dir = $this->adir[$this->cnt];
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return $dir->path . $dir->current();
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}
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}
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throw new exception("No more elements available");
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}
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/**
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* Hidden __clone
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*/
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protected function __clone() {
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// disallow clone
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}
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}
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?>
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