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|
$^W=0;
# Before `make install' is performed this script should be runnable with
# `make test'. After `make install' it should work as `perl test.pl'
######################### We start with some black magic to print on failure.
# Change 1..1 below to 1..last_test_to_print .
# (It may become useful if the test is moved to ./t subdirectory.)
BEGIN { $| = 1; print "1..15\n"; }
END {print "not ok 1\n" unless $loaded;}
use Parse::Yapp;
$loaded = 1;
print "ok 1\n";
######################### End of black magic.
# Insert your test code below (better if it prints "ok 13"
# (correspondingly "not ok 13") depending on the success of chunk 13
# of the test code):
use Parse::Yapp;
my($testnum)=2;
my($parser,$grammar);
my($yapptxt);
#Test 2
eval {
$grammar=join('',<DATA>);
$parser=new Parse::Yapp(input => $grammar);
};
$@
and do {
print "not ok $testnum\n";
print "Object not created. Cannot continue test suite: aborting\n";
exit(1);
};
print "ok $testnum\n";
++$testnum;
#Test 3
eval {
$yapptxt=$parser->Output(classname => 'Calc');
};
$@
and do {
print "not ok $testnum\n";
print "Parser not generated. Cannot continue test suite: aborting\n";
exit(1);
};
print "ok $testnum\n";
++$testnum;
#Test 4
eval $yapptxt;
$@
and do {
print "not ok $testnum\n";
print "Parser not loaded. Cannot continue test suite: aborting\n";
exit(1);
};
print "ok $testnum\n";
++$testnum;
#Test 5
my($calc);
eval {
$calc=new Calc();
};
$@
and do {
print "not ok $testnum\n";
print "Parser not found. Cannot continue test suite: aborting\n";
exit(1);
};
print "ok $testnum\n";
++$testnum;
#Test 6
eval {
$calc->YYData->{INPUT}="13*2\n-(13*2)+3\n5^3+2\n";
@outcheck=((13*2),(-(13*2)+3),(5**3+2));
$output=$calc->YYParse(yylex => \&Calc::Lexer);
};
print $@ ? "not ok $testnum\n" : "ok $testnum\n";
++$testnum;
#Test 7
print join(',',@$output) ne join(',',@outcheck)
? "not ok $testnum\n"
: "ok $testnum\n";
++$testnum;
#Test 8
eval {
delete($calc->YYData->{LINE});
$calc->YYData->{INPUT}="5+8\n-(13*2)+3--\n3*8\n**7-3(12*55)\n12*(5-2)\n";
@outcheck=((5+8), undef, (3*8), undef, (12*(5-2)));
@errcheck=( 2, 4);
$nberr=2;
$output=$calc->YYParse(yylex => \&Calc::Lexer, yyerror => \&Calc::Error);
};
print $@ ? "not ok $testnum\n" : "ok $testnum\n";
++$testnum;
#Test 9
print join(',',@$output) ne join(',',@outcheck)
? "not ok $testnum\n"
: "ok $testnum\n";
++$testnum;
#Test 10
print join(',',@{$calc->YYData->{ERRLINES}}) ne join(',',@errcheck)
? "not ok $testnum\n"
: "ok $testnum\n";
++$testnum;
#Test 11
print $calc->YYNberr != $nberr
? "not ok $testnum\n"
: "ok $testnum\n";
++$testnum;
#Test 12
eval {
$calc->YYData->{INPUT}="a=-(13*2)+3\nb=12*(5-2)\na*b\n";
@outcheck=((-(13*2)+3), (12*(5-2)), ((-(13*2)+3)*(12*(5-2))));
$output=$calc->YYParse(yylex => \&Calc::Lexer, yyerror => \&Calc::Error);
};
print $@ ? "not ok $testnum\n" : "ok $testnum\n";
++$testnum;
#Test 13
print join(',',@$output) ne join(',',@outcheck)
? "not ok $testnum\n"
: "ok $testnum\n";
++$testnum;
#Test 14
eval {
local *STDERR;
close(STDERR); #Supress debug output
$calc->YYData->{INPUT}="a=-(13*2)+3\n-*12\nb=12*(5-2)\na*b\n";
@outcheck=((-(13*2)+3), undef, (12*(5-2)), ((-(13*2)+3)*(12*(5-2))));
$output=$calc->YYParse(yylex => \&Calc::Lexer,
yyerror => \&Calc::Error,
yydebug => 0xFF );
};
print $@ ? "not ok $testnum\n" : "ok $testnum\n";
++$testnum;
#Test 15
print join(',',@$output) ne join(',',@outcheck)
? "not ok $testnum\n"
: "ok $testnum\n";
++$testnum;
__DATA__
%right '='
%left '-' '+'
%left '*' '/'
%left NEG
%right '^'
%%
input: #empty
| input line { push(@{$_[1]},$_[2]); $_[1] }
;
line: '\n' { ++$_[0]->YYData->{LINE}; $_[1] }
| exp '\n' { ++$_[0]->YYData->{LINE}; $_[1] }
| error '\n' { ++$_[0]->YYData->{LINE}; $_[0]->YYErrok }
;
exp: NUM
| VAR { $_[0]->YYData->{VARS}{$_[1]} }
| VAR '=' exp { $_[0]->YYData->{VARS}{$_[1]}=$_[3] }
| exp '+' exp { $_[1] + $_[3] }
| exp '-' exp { $_[1] - $_[3] }
| exp '*' exp { $_[1] * $_[3] }
| exp '/' exp { $_[1] / $_[3] }
| '-' exp %prec NEG { -$_[2] }
| exp '^' exp { $_[1] ** $_[3] }
| '(' exp ')' { $_[2] }
;
%%
sub Error {
my($parser)=shift;
push(@{$parser->YYData->{ERRLINES}}, $parser->YYData->{LINE});
}
sub Lexer {
my($parser)=shift;
exists($parser->YYData->{LINE})
or $parser->YYData->{LINE}=1;
$parser->YYData->{INPUT}
or return('',undef);
$parser->YYData->{INPUT}=~s/^[ \t]//;
for ($parser->YYData->{INPUT}) {
s/^([0-9]+(?:\.[0-9]+)?)//
and return('NUM',$1);
s/^([A-Za-z][A-Za-z0-9_]*)//
and return('VAR',$1);
s/^(.)//s
and return($1,$1);
}
}
|
