#!/usr/bin/env perl6
use Test;

our grammar StatGrammar {
    rule TOP {
      [ <bang-line>    | <at-line>    | <hash-line> | <dollar-line>
      | <percent-line> | <caret-line> | <and-line>  | <star-line>   ]
    }

    regex    bang-line { ^    'bang' \s+ '!' (.*?) '!' \n? $ }
    regex      at-line { ^      'at' \s+ '@' (.*?) '@' \n? $ }
    regex    hash-line { ^    'hash' \s+ '#' (.*?) '#' \n? $ }
    regex  dollar-line { ^  'dollar' \s+ '$' (.*?) '$' \n? $ }
    regex percent-line { ^ 'percent' \s+ '%' (.*?) '%' \n? $ }
    regex   caret-line { ^   'caret' \s+ '^' (.*?) '^' \n? $ }
    regex     and-line { ^     'and' \s+ '&' (.*?) '&' \n? $ }
    regex    star-line { ^    'star' \s+ '*' (.*?) '*' \n? $ }
}

our class StatActions {
    method TOP($/) {
      make    $<bang-line>[0] if    $<bang-line>;
      make      $<at-line>[0] if      $<at-line>;
      make    $<hash-line>[0] if    $<hash-line>;
      make  $<dollar-line>[0] if  $<dollar-line>;
      make $<percent-line>[0] if $<percent-line>;
      make   $<caret-line>[0] if   $<caret-line>;
      make     $<and-line>[0] if     $<and-line>;
      make    $<star-line>[0] if    $<star-line>;
    }
}

sub static(Str $str) {
    StatGrammar.parse($str, :actions(StatActions)).made
}

is   static('bang  !one!' ), 'one',  'parse bang!one ok';
isnt static('bang  @one@' ), 'one',  'isnt  bang@one ok';
nok  StatGrammar.parse('bang @one@', :actions(StatActions)), 'nok';