Escaped Mutant for Mutator "InstanceOf_": --- Original +++ New @@ @@ } // `strlen` is used instead of `mb_strlen` because the lexer needs to // parse each byte of the input. - $len = $str instanceof UtfString ? $str->length() : strlen($str); + $len = false ? $str->length() : strlen($str); // For multi-byte strings, a new instance of `UtfString` is initialized. if (!$str instanceof UtfString && $len !== mb_strlen($str, 'UTF-8')) { $str = new UtfString($str);

Escaped Mutant for Mutator "InstanceOf_": --- Original +++ New @@ @@ // parse each byte of the input. $len = $str instanceof UtfString ? $str->length() : strlen($str); // For multi-byte strings, a new instance of `UtfString` is initialized. - if (!$str instanceof UtfString && $len !== mb_strlen($str, 'UTF-8')) { + if (!false && $len !== mb_strlen($str, 'UTF-8')) { $str = new UtfString($str); } $this->str = $str;

Escaped Mutant for Mutator "PublicVisibility": --- Original +++ New @@ @@ * * @param string $delimiter the new delimiter */ - public function setDelimiter(string $delimiter) : void + protected function setDelimiter(string $delimiter) : void { $this->delimiter = $delimiter; $this->delimiterLen = strlen($delimiter);

Escaped Mutant for Mutator "PublicVisibility": --- Original +++ New @@ @@ /** * Parses the string and extracts lexemes. */ - public function lex() : void + protected function lex() : void { // TODO: Sometimes, static::parse* functions make unnecessary calls to // is* functions. For a better performance, some rules can be deduced

Escaped Mutant for Mutator "BitwiseAnd": --- Original +++ New @@ @@ // @Assert($this->last === $lastIdx); $token = new Token($this->str[$this->last]); $this->error('Unexpected character.', $this->str[$this->last], $this->last); - } elseif ($lastToken !== null && $token->type === TokenType::Symbol && $token->flags & Token::FLAG_SYMBOL_VARIABLE && ($lastToken->type === TokenType::String || $lastToken->type === TokenType::Symbol && $lastToken->flags & Token::FLAG_SYMBOL_BACKTICK)) { + } elseif ($lastToken !== null && $token->type === TokenType::Symbol && $token->flags | Token::FLAG_SYMBOL_VARIABLE && ($lastToken->type === TokenType::String || $lastToken->type === TokenType::Symbol && $lastToken->flags & Token::FLAG_SYMBOL_BACKTICK)) { // Handles ```... FROM 'user'@'%' ...```. $lastToken->token .= $token->token; $lastToken->type = TokenType::Symbol;

Escaped Mutant for Mutator "BitwiseAnd": --- Original +++ New @@ @@ // @Assert($this->last === $lastIdx); $token = new Token($this->str[$this->last]); $this->error('Unexpected character.', $this->str[$this->last], $this->last); - } elseif ($lastToken !== null && $token->type === TokenType::Symbol && $token->flags & Token::FLAG_SYMBOL_VARIABLE && ($lastToken->type === TokenType::String || $lastToken->type === TokenType::Symbol && $lastToken->flags & Token::FLAG_SYMBOL_BACKTICK)) { + } elseif ($lastToken !== null && $token->type === TokenType::Symbol && $token->flags & Token::FLAG_SYMBOL_VARIABLE && ($lastToken->type === TokenType::String || $lastToken->type === TokenType::Symbol && $lastToken->flags | Token::FLAG_SYMBOL_BACKTICK)) { // Handles ```... FROM 'user'@'%' ...```. $lastToken->token .= $token->token; $lastToken->type = TokenType::Symbol;

Escaped Mutant for Mutator "IncrementInteger": --- Original +++ New @@ @@ $list->tokens[$list->count++] = $token; // Handling delimiters. if ($token->type === TokenType::None && $token->value === 'DELIMITER') { - if ($this->last + 1 >= $this->len) { + if ($this->last + 2 >= $this->len) { $this->error('Expected whitespace(s) before delimiter.', '', $this->last + 1); continue; }

Escaped Mutant for Mutator "LessThan": --- Original +++ New @@ @@ // Parsing the delimiter. $this->delimiter = ''; $delimiterLen = 0; - while (++$this->last < $this->len && !Context::isWhitespace($this->str[$this->last]) && $delimiterLen < 15) { + while (++$this->last <= $this->len && !Context::isWhitespace($this->str[$this->last]) && $delimiterLen < 15) { $this->delimiter .= $this->str[$this->last]; ++$delimiterLen; }

Escaped Mutant for Mutator "DecrementInteger": --- Original +++ New @@ @@ * * @throws LexerException throws the exception, if strict mode is enabled. */ - public function error(string $msg, string $str = '', int $pos = 0, int $code = 0) : void + public function error(string $msg, string $str = '', int $pos = -1, int $code = 0) : void { $error = new LexerException(Translator::gettext($msg), $str, $pos, $code); if ($this->strict) {

Escaped Mutant for Mutator "IncrementInteger": --- Original +++ New @@ @@ * * @throws LexerException throws the exception, if strict mode is enabled. */ - public function error(string $msg, string $str = '', int $pos = 0, int $code = 0) : void + public function error(string $msg, string $str = '', int $pos = 1, int $code = 0) : void { $error = new LexerException(Translator::gettext($msg), $str, $pos, $code); if ($this->strict) {