Validate input

# Parle\Parser::validate

(PECL parle >= 0.5.1)

Parle\Parser::validate — Validate input

### 説明

public Parle\Parser::validate ( string `$data` , Parle\Lexer `$lexer` ) : bool

Validate an input string. The string is parsed internally, thus this method is useful for the quick input validation.

### パラメータ

`data`

  String to be validated.

`lexer`

  A lexer object containing the lexing rules prepared for the particular grammar.

### 返り値

Returns boolean witnessing whether the input chimes or not with the defined rules.