/**
* Parses the source expressions to the PHP code.
*
* @param string $expression The expression source
* @return array
*/
public function parse($expr)
{
$this->_unique = 0;
$this->_expression = $expr;
$lexer = new Opt_Expression_Standard_Lexer($expr);
$parser = new Opt_Expression_Standard_Parser($this);
while ($lexer->yylex()) {
if ($lexer->token != 'w') {
$parser->doParse($lexer->token, $lexer->value);
}
}
$parser->doParse(0, 0);
$exprType = Opt_Expression_Interface::COMPOUND;
if ($this->_assign == true) {
$exprType = Opt_Expression_Interface::ASSIGNMENT;
}
$this->_assign = false;
return array('bare' => $this->_compiled, 'expression' => $this->_compiled, 'format' => $this->_format, 'complexity' => $this->_complexity, 'type' => $exprType);
}
static function PrintTrace()
{
self::$yyTraceFILE = fopen('php://output', 'w');
self::$yyTracePrompt = '<br>';
}