public function testAnalyze()
{
$result = '';
$lexer = new LexicalAnalyzer(['\\+' => function () {
return 't_add';
}, '\\-' => function () {
return 't_minus';
}, '\\*' => function () {
return 't_multi';
}, '\\/' => function () {
return 't_divide';
}, '\\=' => function () {
return 't_equal';
}, '[1-9][0-9]*|0([0-7]+|(x|X)[0-9A-Fa-f]*)?' => function ($word) use(&$result) {
$result .= $word;
return "t_number";
}, '\\s' => null]);
$this->assertEquals(['t_number', 't_add', 't_number', 't_equal', 't_number'], $lexer->analyze('10 + 20 = 0'));
$this->assertEquals('10200', $result);
}
public function analyze($context)
{
// get lex tokens
$predefinedTokens = array_flip($this->tokens);
$lexTokens = array_map(function ($lexToken) use($predefinedTokens) {
if ($lexToken instanceof Token) {
return $lexToken;
}
if (isset($predefinedTokens[$lexToken])) {
return new Token($lexToken);
}
throw new UnknownTokenFromLexException($lexToken);
}, $this->lexer->analyze($context));
// get FIRST
// print_r($this->syntaxes);
// get FOLLOW
// get LOOKAHEAD
// with null
//
$parsingTables = [];
// [NO_STATES][NO_SYMBOLS + 1]
// print_r($lexTokens);
return '';
}