nl_tokens: Behaviour : https : // github . com / php / php - src / blob / master / Zend / zend_language_scanner . l#L1927
pl_tokens: function ( ) { let ch = this . input ( ) ; let token = this . tok . T_COMMENT ; if ( ch === "*" ) { // started with '/*' , check is next is '*' ch = this . input ( ) ; if ( this . is_WHITESPACE ( ) ) { // check if next is WHITESPACE token = this . tok . T_DOC_COMMENT ; } if ( ch === "/" ) { return token ; } else { this . unput ( 1 ) ; // reset } } while ( this . offset < this . <mask> ) { ch = this . input ( ) ; if ( ch === "*" && this . _input [ this . offset ] === "/" ) { this . input ( ) ; break ; } } return token ; }