protected function value()
    {
        if (   !(list($value) = $this->str())
            && !(list($value) = $this->number())
            && !(list($value) = $this->match(CssParser::IDENTIFIER))
        ) {
            return false;
        }
        return array($value);
    }
protected function value()
    {
        if (   !(list($value) = $this->str())
            && !(list($value) = $this->number())
            && !(list($value) = $this->match(CssParser::IDENTIFIER))
        ) {
            return false;
        }
        return array($value);
    }
protected function value ( ) { if ( ! ( list ( $ value ) = $ this -> str ( ) ) && ! ( list ( $ value ) = $ this -> number ( ) ) && ! ( list ( $ value ) = $ this -> match ( CssParser :: IDENTIFIER ) ) ) { return false ; } return array ( $ value ) ; }
Is the next thing a value?

The following examples are values:
```
'hello'
"hello\"man"
'hello\'man'
0015blah
_blah_
```

@return false|array of a single string
Is the next thing a value?