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example.t
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example.t
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use v6;
use Test;
plan 5;
=pod calling a rule a grammar with arguments
grammar G { rule rule($arg) { { $arg == 42 } } }
ok( G.parse('', :rule<rule>, :args(\(42)) ), 'call rule with positional argument' );
ok( G.parse('', :rule<rule>, :args(42,)), 'call rule with positional argument' );
grammar H { rule rule(:$arg) { { $arg == 42 } } }
ok( H.parse('', :rule<rule>, :args( \(:arg(42)))), 'call rule with named argument' );
ok( H.parse('', :rule<rule>, :args( :arg(42),)) , 'call rule with named argument' );
my rule schedule { <title> [ <talk> ]+ }
my token title { '<title>' <speaker> '</title>' }
my regex ws { .*? };
my token talk { '<small>' <speaker> '</small>' };
my token speaker { \w+ };
=begin pod
Use rules from a grammar.
=end pod
my $content = '
<tr>
<td align="center" width="8%">8:30</td>
<td align="center" width="23%"><a href="http://www.yapcchicago.org/the-schedule/monday/m-abstracts#am830">Conferences for Beginners</a><br><small>Jim Brandt, brian d foy</small></td>
<td colspan="3" align="center" bgcolor="#3f3f3f" width="69%">—</td>
</tr>
<tr>
<td align="center" width="8%">9:00</td>
<td align="center" width="23%"><a href="http://www.yapcchicago.org/the-schedule/monday/m-abstracts#am900">Opening Ceremonies</a><br><small>Josh McAdams</small></td>
<td colspan="3" align="center" bgcolor="#3f3f3f" width="69%">—</td>
</tr>
';
is(~($content ~~ m/<speaker>/), 'tr', 'read token from grammar namespace');
$content = '<title>Exactly</title> aosihdas
<small>A</small> aosidh
<small>B</small> aosidh
<small>C</small> aosidh
<small>D</small>';
#?rakudo skip 'Method "speaker" not found for invocant of class "Cursor" RT #124795'
is($content ~~ m/<title>/, '<title>Exactly</title>', 'match token');
# XXX this can't work this way
# 'schedule' is a rule (non-backtracking) so the implicit <.ws> will always
# match zero characters.
#?rakudo skip 'Method "speaker" not found for invocant of class "Cursor" RT #124795'
is($content ~~ m/<schedule>/, $content, 'match rule');
# vim: ft=perl6