private function tree()
{
try {
$lexer = new Tokenizer($this->source);
$parser = new TokenReader($lexer);
$parser->arithmetic();
$parser->printExpressionTree();
} catch (Exception $e) {
echo $e->getMessage();
}
}
/**
* This method is called to load the sources from the reader
* into the buffer of the source.
*/
function load()
{
// Create new Reader
if ($this->classname === null) {
throw new BuildException("No Classname given to TokenSource.");
}
$classname = Phing::import($this->classname);
$this->reader = new $classname($this->project);
// Configure Reader
$this->configureTokenReader($this->reader);
// Load Tokens
try {
while ($token = $this->reader->readToken()) {
$this->tokens[] = $token;
}
} catch (BuildException $e) {
$this->log("Error reading TokenSource: " . $e->getMessage(), PROJECT_MSG_WARN);
} catch (IOException $e) {
$this->log("Error reading TokenSource: " . $e->getMessage(), PROJECT_MSG_WARN);
}
}
<?php
/**
* @author Elynton Fellipe Bazzo
* @author Andrei Siqueira
*/
require_once 'Lexer.php';
require_once 'Parser.php';
require_once 'Tokenizer.php';
require_once 'TokenReader.php';
require_once 'Token.php';
require_once 'LexerError.php';
require_once 'ParserError.php';
$source = <<<END
-(3) / -10;
END;
try {
// Instanciamos o lexer e o parser, fazemos a análise aritmética e
// imprimimos a árvore gerada
$lexer = new Tokenizer($source);
$parser = new TokenReader($lexer);
$parser->arithmetic();
$parser->printExpressionTree();
} catch (Exception $e) {
echo $e->getMessage();
}
$httpCode = 400;
} else {
$execurl = "{$target}?" . http_build_query($get);
$url = "http://" . $_SERVER["SERVER_NAME"] . "/{$execurl}";
if (($script_result = @get_contents($url, $_SERVER["REQUEST_METHOD"], $post)) === false) {
$errors[] = "HTTP request for file on server failed.";
} elseif (preg_match("/<b>Parse error<\\/b>: syntax error, (.*) in .* on line <b>(\\d+)<\\/b>/", $script_result["content"], $matches)) {
$errors[] = array("syntaxError" => array("reason" => $matches[1], "lineNumber" => $matches[2]));
$httpCode = 200;
// still made successful request
} elseif ($script_result["status"]["code"] == 200) {
if (($target_contents = @file_get_contents($targetfile)) === false) {
$errors[] = "Cannot open specified PHP file on server {$targetfile}.";
$httpCode = 404;
} else {
$tok = new TokenReader($target_contents);
$execurl = "{$target}?" . http_build_query($get);
$url = "http://" . $_SERVER["SERVER_NAME"] . "/{$execurl}";
$pdovar = null;
$queries = array();
$username = null;
$host = null;
$dbname = null;
while (!$tok->atEnd()) {
$result = $tok->findInputVars($_SERVER["REQUEST_METHOD"]);
if ($result !== null) {
$vars->addVar($result[0][0], $result[0][1], $result[0][2], $result[0][3]);
$tok->forward($result[1]);
} else {
$result = $tok->findPdoInfo();
if ($result !== null) {
