/**
* Leafに対して渡したいもの：
* ZendTokenのインスタンス
* 開始行
* not-Leafに対して渡したいもの
* このノードの呼び名
* 子供のNodeたち
*/
function __construct($token = '', $children = null, $current_line = 0)
{
if ($children === null) {
// 木構造でいうleaf
$zend_token = $token;
$this->zendToken = $zend_token;
$this->endLine = $current_line;
$this->beginLine = $current_line - $this->zendToken->getNewLines();
$this->children = array();
$token_name = $zend_token->tokenValue;
} elseif (is_array($children)) {
// 木構造でいうleaf以外
if ($children !== array()) {
$first_child = $children[0];
$last_child = $children[sizeof($children) - 1];
$this->zendToken = null;
$this->beginLine = $first_child->beginLine;
$this->endLine = $first_child->endLine;
$this->children = $children;
}
$token_name = $token;
} else {
}
$this->tokenName = $token_name;
$ev = new sfEvent($this, $token_name);
EventDispatcherHolder::getDispatcher()->notify($ev);
$ev_all = new sfEvent($this, 'ALL_NODE');
EventDispatcherHolder::getDispatcher()->notify($ev_all);
}
static function getDispatcher()
{
if (!self::$dispatcher) {
self::$dispatcher = new sfEventDispatcher();
}
return self::$dispatcher;
}
#!/usr/bin/env php
<?php
require_once dirname(__FILE__) . '/../libs/PhpLexer.php';
require_once dirname(__FILE__) . '/../libs/PhpParser.php';
require_once dirname(__FILE__) . '/../libs/EventDispatcherHolder.php';
if ($_SERVER['argc'] <= 1) {
echo "usage: ./show-php-parse-tree.php [php program]\n";
exit(0);
}
$input_file = $_SERVER['argv'][1];
if (!file_exists($input_file)) {
echo "error: no such file\n";
exit(1);
}
EventDispatcherHolder::getDispatcher()->connect('start', 'output_dot_from_parser_tree');
$l = new PhpLexer();
$l->setPhpSource(file_get_contents($input_file));
$p = new PhpParser();
$p->yyparse($l);
function output_dot_from_parser_tree(sfEvent $ev)
{
$node = $ev->getSubject();
output_header();
output_node_info($node);
output_children($node);
output_footer();
}
function output_header()
{
echo 'digraph sample {
node [shape = record, style = filled,
