#!/usr/bin/perl -w
use strict;
#use Test::More qw(no_plan);
use Test::More tests => 3;
#use Test::Exception;
our $test_exception_installed;
BEGIN {
$test_exception_installed = 1;
eval { require Test::Exception };
$test_exception_installed = 0 if $@;
}
use_ok qw(Parse::Eyapp) or exit;
#use Data::Dumper;
use_ok qw(Parse::Eyapp::Treeregexp);
my $grammar = q{
%semantic token 'a' 'b' 'c'
%tree
%%
S: %name ABC
A B C
| %name BC
B C
;
A: %name A
'a'
;
B: %name B
'b'
;
C: %name C
'c'
;
%%
sub _Error {
die "Syntax error.\n";
}
my $in;
sub _Lexer {
my($parser)=shift;
{
$in or return('',undef);
$in =~ s/^\s+//;
$in =~ s/^([AaBbCc])// and return($1,$1);
$in =~ s/^(.)//s and print "<$1>\n";
redo;
}
}
sub Run {
my($self)=shift;
$in = shift;
#$in = <>;
$self->YYParse( yylex => \&_Lexer, yyerror => \&_Error, );
}
}; # end grammar
#$Data::Dumper::Indent = 1;
Parse::Eyapp->new_grammar(input=>$grammar, classname=>'AB', firstline => 9); #, outputfile => 'AB.pm');
my $parser = AB->new();
my $t = $parser->Run("abc");
#print "\n***** Before ******\n";
#print Dumper($t);
SKIP: {
skip "Test::Exception not installed", 1 unless $test_exception_installed;
my $expected_result
= qr{Parse::Eyapp::Treeregexp::new Error!: unknown argument OUTFILE. Valid arguments are:};
Test::Exception::throws_ok {
my $p = Parse::Eyapp::Treeregexp->new( STRING => q{
delete_b_in_abc : /ABC|BC/(@a, B, @c)
=> { @{$_[0]->{children}} = (@a, @c) }
},
SEVERITY => 0,
OUTFILE => 'main.pm', # This is a deliberated error
);
}
$expected_result,
"invalid argument in Parse::Eyapp::Treeregexp->new";
} # end SKIP