/**
* Výsledný textový výstup
*
* @param string
* @return string
*/
protected function compile($input)
{
$locale = setlocale(LC_NUMERIC, 0);
setlocale(LC_NUMERIC, "C");
$tree = $this->parser->parse($input);
$reduced = $this->analyzer->analyze($tree, $this->variables);
$output = $this->generator->generate($reduced, $this->defaultUnit);
setlocale(LC_NUMERIC, $locale);
return $output;
}
/**
* Vyhodnocení binární operace
*
* @param string
* @param array
* @param array
* @return array
*/
protected function evaluateBinaryOperation($operator, $value1, $value2)
{
if (in_array($operator, array('&&', '||', '^^', '=', '!='))) {
switch ($operator) {
case '&&':
$answer[] = 'bool';
$answer[] = $value1[1] && $value2[1];
break;
case '||':
$answer[] = 'bool';
$answer[] = $value1[1] || $value2[1];
break;
case '^^':
$answer[] = 'bool';
$answer[] = $value1[1] xor $value2[1];
break;
case '=':
$answer[] = 'bool';
$answer[] = $value1[1] == $value2[1];
break;
case '!=':
$answer[] = 'bool';
$answer[] = $value1[1] != $value2[1];
break;
}
return $answer;
} elseif ($operator == '.' && $value1[0] == 'string' && $value2[0] == 'raw') {
return array('string', '\'' . substr($value1[1], 1, -1) . substr(Compiler::stringEncode($value2[1]), 1));
} elseif ($operator == '.' && $value1[0] == 'raw' && $value2[0] == 'string') {
return array('string', substr(Compiler::stringEncode($value1[1]), 0, -1) . substr($value2[1], 1, -1) . '\'');
} elseif ($operator == '.' && $value1[0] == 'string' && $value2[0] == 'unit') {
return array('string', '\'' . substr($value1[1], 1, -1) . $value2[1] . $this->generator->compileUnit($value2) . '\'');
} elseif ($operator == '.' && $value1[0] == 'unit' && $value2[0] == 'string') {
return array('string', '\'' . $value1[1] . $this->generator->compileUnit($value1) . substr($value2[1], 1, -1) . '\'');
} elseif ($operator == '.' && $value1[0] == 'string' && $value2[0] == 'string') {
return array('string', '\'' . substr($value1[1], 1, -1) . substr($value2[1], 1, -1) . '\'');
} elseif (array_key_exists($operator, Compiler::$binaryOperators) && $value1[0] == 'unit' && $value2[0] == 'unit') {
$answer = array();
switch ($operator) {
case '*':
$answer[] = 'unit';
$answer[] = $value1[1] * $value2[1];
$answer[] = $this->getUnit($value1, $value2);
break;
case '/':
if ($value2[1] == 0) {
throw new CompileException("Dělení nulou");
}
$answer[] = 'unit';
$answer[] = $value1[1] / $value2[1];
$answer[] = $this->getUnit($value1, $value2);
break;
case '%':
$answer[] = 'unit';
$answer[] = $value1[1] % $value2[1];
$answer[] = $this->getUnit($value1, $value2);
break;
case '+':
$answer[] = 'unit';
$answer[] = $value1[1] + $value2[1];
$answer[] = $this->getUnit($value1, $value2);
break;
case '-':
$answer[] = 'unit';
$answer[] = $value1[1] - $value2[1];
$answer[] = $this->getUnit($value1, $value2);
break;
case '.':
$answer[] = 'string';
$answer[] = '\'' . $value1[1] . $this->generator->compileUnit($value1) . $value2[1] . $this->generator->compileUnit($value2) . '\'';
break;
case '>':
$answer[] = 'bool';
$answer[] = $value1[1] > $value2[1];
break;
case '<':
$answer[] = 'bool';
$answer[] = $value1[1] < $value2[1];
break;
case '>=':
$answer[] = 'bool';
$answer[] = $value1[1] >= $value2[1];
break;
case '<=':
$answer[] = 'bool';
$answer[] = $value1[1] <= $value2[1];
break;
case '<>':
$answer[] = 'bool';
$answer[] = $value1[1] != $value2[1];
break;
default:
throw new CompileException("Neznámý operátor");
break;
}
return $answer;
}
throw new CompileException("Nepovolená operace ({$value1['0']} {$operator} {$value2['0']})");
}
