t/lib/warnings/toke - metacpan.org

toke.c	AOK

    we seem to have lost a few ambiguous warnings!!

 
 		$a = <<;
 		Use of comma-less variable list is deprecated 
		(called 3 times via depcom)

     \1 better written as $1 
 	use warnings 'syntax' ;
 	s/(abc)/\1/;
 
     warn(warn_nosemi) 
     Semicolon seems to be missing
	$a = 1
	&time ;


     Reversed %c= operator 
	my $a =+ 2 ;
	$a =- 2 ;
	$a =* 2 ;
	$a =% 2 ;
	$a =& 2 ;
	$a =. 2 ;
	$a =^ 2 ;
	$a =| 2 ;
	$a =< 2 ;
	$a =/ 2 ;

     Multidimensional syntax %.*s not supported 
	my $a = $a[1,2] ;

     You need to quote \"%s\"" 
	sub fred {} ; $SIG{TERM} = fred;

     Can't use \\%c to mean $%c in expression 
	$_ = "ab" ; s/(ab)/\1/e;

     Unquoted string "abc" may clash with future reserved word at - line 3.
     warn(warn_reserved	
	$a = abc;

     Possible attempt to separate words with commas 
	@a = qw(a, b, c) ;

     Possible attempt to put comments in qw() list 
	@a = qw(a b # c) ;

     %s (...) interpreted as function 
	print ("")
	printf ("")
	sort ("")

     Ambiguous use of %c{%s%s} resolved to %c%s%s 
	$a = ${time[2]}
	$a = ${time{2}}


     Ambiguous use of %c{%s} resolved to %c%s
	$a = ${time}
	sub fred {} $a = ${fred}

     Misplaced _ in number 
	$a = 1_2;
	$a = 1_2345_6;

    Bareword \"%s\" refers to nonexistent package
	$a = FRED:: ;

    Ambiguous call resolved as CORE::%s(), qualify as such or use &
	sub time {} 
	my $a = time()

    Unrecognized escape \\%c passed through
        $a = "\m" ;

    Useless use of \\E.
        $a = "abcd\E" ;

    Postfix dereference is experimental

    %s number > %s non-portable
        my $a =  0b011111111111111111111111111111110 ;
        $a =  0b011111111111111111111111111111111 ;
        $a =  0b111111111111111111111111111111111 ;
        $a =  0x0fffffffe ;
        $a =  0x0ffffffff ;
        $a =  0x1ffffffff ;
        $a =  0037777777776 ;
        $a =  0037777777777 ;
        $a =  0047777777777 ;

    Integer overflow in binary number
        my $a =  0b011111111111111111111111111111110 ;
        $a =  0b011111111111111111111111111111111 ;
        $a =  0b111111111111111111111111111111111 ;
        $a =  0x0fffffffe ;
        $a =  0x0ffffffff ;
        $a =  0x1ffffffff ;
        $a =  0037777777776 ;
        $a =  0037777777777 ;
        $a =  0047777777777 ;

    dump() better written as CORE::dump()

    Use of /c modifier is meaningless without /g     

    Use of /c modifier is meaningless in s///

    Mandatory Warnings
    ------------------
    Use of "%s" without parentheses is ambiguous	[check_uni]
        rand + 4 

    Ambiguous use of -%s resolved as -&%s() 		[yylex]
        sub fred {} ; - fred ;

    Precedence problem: open %.*s should be open(%.*s)	[yylex]
    	open FOO || die;

    Operator or semicolon missing before %c%s		[yylex]
    Ambiguous use of %c resolved as operator %c
        *foo *foo

__END__
# toke.c 
format STDOUT =
@<<<  @|||  @>>>  @>>>
$a    $b    "abc" 'def'
.
no warnings 'deprecated' ;
format STDOUT =
@<<<  @|||  @>>>  @>>>
$a    $b    "abc" 'def'
.
EXPECT
Use of comma-less variable list is deprecated at - line 4.
Use of comma-less variable list is deprecated at - line 4.
Use of comma-less variable list is deprecated at - line 4.
########
# toke.c
$a = <<;

no warnings 'deprecated' ;
$a = <<;

EXPECT
Use of bare << to mean <<"" is deprecated at - line 2.
########
# toke.c
eval "\$\cT";
eval "\${\7LOBAL_PHASE}";
eval "\${\cT}";
eval "\${\n\cT}";
eval "\${\cT\n}";
my $ret = eval "\${\n\cT\n}";
print "ok\n" if $ret == $^T;

no warnings 'deprecated' ;
eval "\$\cT";
eval "\${\7LOBAL_PHASE}";
eval "\${\cT}";
eval "\${\n\cT}";
eval "\${\cT\n}";
eval "\${\n\cT\n}";

EXPECT
Use of literal control characters in variable names is deprecated at (eval 1) line 1.
Use of literal control characters in variable names is deprecated at (eval 2) line 1.
Use of literal control characters in variable names is deprecated at (eval 3) line 1.
Use of literal control characters in variable names is deprecated at (eval 4) line 2.
Use of literal control characters in variable names is deprecated at (eval 5) line 1.
Use of literal control characters in variable names is deprecated at (eval 6) line 2.
ok
########
# toke.c
$a =~ m/$foo/eq;
$a =~ s/$foo/fool/seq;

EXPECT
OPTION fatal
Unknown regexp modifier "/e" at - line 2, near "=~ "
Unknown regexp modifier "/q" at - line 2, near "=~ "
Unknown regexp modifier "/q" at - line 3, near "=~ "
Execution of - aborted due to compilation errors.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
$a =~ m/$foo/eネq;
$a =~ s/$foo/fool/seネq;

EXPECT
OPTION fatal
Unknown regexp modifier "/e" at - line 4, near "=~ "
Unknown regexp modifier "/ネ" at - line 4, near "=~ "
Unknown regexp modifier "/q" at - line 4, near "=~ "
Unknown regexp modifier "/ネ" at - line 5, near "=~ "
Unknown regexp modifier "/q" at - line 5, near "=~ "
Execution of - aborted due to compilation errors.
########
# toke.c
use warnings 'syntax' ;
s/(abc)/\1/;
no warnings 'syntax' ;
s/(abc)/\1/;
EXPECT
\1 better written as $1 at - line 3.
########
# toke.c
use warnings 'semicolon' ;
$a = 1
&time ;
no warnings 'semicolon' ;
$a = 1
&time ;
EXPECT
Semicolon seems to be missing at - line 3.
########
# toke.c
use warnings 'syntax' ;
my $a =+ 2 ;
$a =- 2 ;
$a =* 2 ;
$a =% 2 ;
$a =& 2 ;
$a =. 2 ;
$a =^ 2 ;
$a =| 2 ;
$a =< 2 ;
$a =/ 2 ;
EXPECT
Reversed += operator at - line 3.
Reversed -= operator at - line 4.
Reversed *= operator at - line 5.
Reversed %= operator at - line 6.
Reversed &= operator at - line 7.
Reversed .= operator at - line 8.
Reversed ^= operator at - line 9.
Reversed |= operator at - line 10.
Reversed <= operator at - line 11.
syntax error at - line 8, near "=."
syntax error at - line 9, near "=^"
syntax error at - line 10, near "=|"
Unterminated <> operator at - line 11.
########
# toke.c
no warnings 'syntax' ;
my $a =+ 2 ;
$a =- 2 ;
$a =* 2 ;
$a =% 2 ;
$a =& 2 ;
$a =. 2 ;
$a =^ 2 ;
$a =| 2 ;
$a =< 2 ;
$a =/ 2 ;
EXPECT
syntax error at - line 8, near "=."
syntax error at - line 9, near "=^"
syntax error at - line 10, near "=|"
Unterminated <> operator at - line 11.
########
# toke.c
use warnings 'syntax' ;
my $a = $a[1,2] ;
no warnings 'syntax' ;
my $a = $a[1,2] ;
EXPECT
Multidimensional syntax $a[1,2] not supported at - line 3.
########
# toke.c
use warnings 'syntax' ;
sub fred {} ; $SIG{TERM} = fred;
no warnings 'syntax' ;
$SIG{TERM} = fred;
EXPECT
You need to quote "fred" at - line 3.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings 'syntax' ;
sub frèd {} ; $SIG{TERM} = frèd;
no warnings 'syntax' ;
$SIG{TERM} = frèd;
EXPECT
You need to quote "frèd" at - line 5.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings 'syntax' ;
sub ふれど {} ; $SIG{TERM} = ふれど;
no warnings 'syntax' ;
$SIG{TERM} = ふれど;
EXPECT
You need to quote "ふれど" at - line 5.
########
# toke.c
use warnings 'syntax' ;
$_ = "ab" ; 
s/(ab)/\1/e;
s//\(2)/e; # should be exempt
s/${\2}//; # same here
()="${\2}"; # metoo
no warnings 'syntax' ;
$_ = "ab" ; 
s/(ab)/\1/e;
EXPECT
Can't use \1 to mean $1 in expression at - line 4.
########
# toke.c
use warnings 'reserved' ;
$a = abc;
$a = { def

=> 1 };
no warnings 'reserved' ;
$a = abc;
EXPECT
Unquoted string "abc" may clash with future reserved word at - line 3.
########
# toke.c
use warnings 'qw' ;
@a = qw(a, b, c) ;
no warnings 'qw' ;
@a = qw(a, b, c) ;
EXPECT
Possible attempt to separate words with commas at - line 3.
########
# toke.c
use warnings 'qw' ;
@a = qw(a b c # #) ;
no warnings 'qw' ;
@a = qw(a b c # #) ;
EXPECT
Possible attempt to put comments in qw() list at - line 3.
########
# toke.c
use warnings 'qw' ;
@a = qw(a, b, c # #) ;
no warnings 'qw' ;
@a = qw(a, b, c # #) ;
EXPECT
Possible attempt to separate words with commas at - line 3.
Possible attempt to put comments in qw() list at - line 3.
########
# toke.c
use warnings 'syntax' ;
print ("");
print ("") and $x = 1;
print ("") or die;
print ("") // die;
print (1+2) * 3 if 0; # only this one should warn
print (1+2) if 0;
EXPECT
print (...) interpreted as function at - line 7.
########
# toke.c
no warnings 'syntax' ;
print ("")
EXPECT

########
# toke.c
use warnings 'syntax' ;
printf ("");
printf ("") . '';
EXPECT
printf (...) interpreted as function at - line 4.
########
# toke.c
no warnings 'syntax' ;
printf ("")
EXPECT

########
# toke.c
use warnings 'syntax' ;
sort ("");
sort ("") . '';
EXPECT
sort (...) interpreted as function at - line 4.
########
# toke.c
no warnings 'syntax' ;
sort ("")
EXPECT

########
# toke.c
use warnings 'ambiguous' ;
$a = ${time[2]};
no warnings 'ambiguous' ;
$a = ${time[2]};
EXPECT
Ambiguous use of ${time[...]} resolved to $time[...] at - line 3.
########
# toke.c
use warnings 'ambiguous' ;
$a = ${time{2}};
EXPECT
Ambiguous use of ${time{...}} resolved to $time{...} at - line 3.
########
# toke.c
use warnings 'ambiguous' ;
$a = ${

    time
        {2}
};
warn "after";
EXPECT
Ambiguous use of ${time{...}} resolved to $time{...} at - line 5.
after at - line 8.
########
# toke.c
use warnings 'ambiguous' ;
$a = ${

time[2]

};
$a = ${

time    
   [2]

};
warn "after";
EXPECT
Ambiguous use of ${time[...]} resolved to $time[...] at - line 5.
Ambiguous use of ${time[...]} resolved to $time[...] at - line 10.
after at - line 14.
########
# toke.c
no warnings 'ambiguous' ;
$a = ${time{2}};
EXPECT

########
# toke.c
use warnings 'ambiguous' ;
$a = ${time} ;
$a = @{time} ;
$a = $#{time} ; # This one is special cased in toke.c
$a = %{time} ;
$a = *{time} ;
$a = defined &{time} ; # To avoid calling &::time
no warnings 'ambiguous' ;
$a = ${time} ;
$a = @{time} ;
$a = $#{time} ; # This one is special cased in toke.c
$a = %{time} ;
$a = *{time} ;
$a = defined &{time} ; # To avoid calling &::time
EXPECT
Ambiguous use of ${time} resolved to $time at - line 3.
Ambiguous use of @{time} resolved to @time at - line 4.
Ambiguous use of @{time} resolved to @time at - line 5.
Ambiguous use of %{time} resolved to %time at - line 6.
Ambiguous use of *{time} resolved to *time at - line 7.
Ambiguous use of &{time} resolved to &time at - line 8.
########
# toke.c
use warnings 'ambiguous' ;
$a = ${
time
} ;
$a = @{
time
} ;
$a = $#{
time
} ;
$a = %{
time
} ;
$a = *{
time
} ;
$a = defined &{
time


} ;
warn "last";
EXPECT
Ambiguous use of ${time} resolved to $time at - line 4.
Ambiguous use of @{time} resolved to @time at - line 7.
Ambiguous use of @{time} resolved to @time at - line 10.
Ambiguous use of %{time} resolved to %time at - line 13.
Ambiguous use of *{time} resolved to *time at - line 16.
Ambiguous use of &{time} resolved to &time at - line 19.
last at - line 23.
########
# toke.c
use warnings 'ambiguous' ;
sub fred {}
$a = ${fred} ;
no warnings 'ambiguous' ;
$a = ${fred} ;
EXPECT
Ambiguous use of ${fred} resolved to $fred at - line 4.
########
# toke.c
use warnings 'syntax' ;
$a = _123; print "$a\n";		#( 3	string)
$a = 1_23; print "$a\n";
$a = 12_3; print "$a\n";
$a = 123_; print "$a\n";		#  6
$a = _+123; print "$a\n";		#  7	string)
$a = +_123; print "$a\n";		#( 8	string)
$a = +1_23; print "$a\n";
$a = +12_3; print "$a\n";
$a = +123_; print "$a\n";		# 11
$a = _-123; print "$a\n";		#(12	string)
$a = -_123; print "$a\n";		#(13	string)
$a = -1_23; print "$a\n";
$a = -12_3; print "$a\n";
$a = -123_; print "$a\n";		# 16
$a = 123._456; print "$a\n";		# 17
$a = 123.4_56; print "$a\n";
$a = 123.45_6; print "$a\n";
$a = 123.456_; print "$a\n";		# 20
$a = +123._456; print "$a\n";		# 21
$a = +123.4_56; print "$a\n";	
$a = +123.45_6; print "$a\n";	
$a = +123.456_; print "$a\n";		# 24
$a = -123._456; print "$a\n";		# 25
$a = -123.4_56; print "$a\n";	
$a = -123.45_6; print "$a\n";
$a = -123.456_; print "$a\n";		# 28
$a = 123.456E_12; printf("%.0f\n", $a);	# 29
$a = 123.456E1_2; printf("%.0f\n", $a);
$a = 123.456E12_; printf("%.0f\n", $a);	# 31
$a = 123.456E_+12; printf("%.0f\n", $a);	# 32
$a = 123.456E+_12; printf("%.0f\n", $a);	# 33
$a = 123.456E+1_2; printf("%.0f\n", $a);
$a = 123.456E+12_; printf("%.0f\n", $a);	# 35
$a = 123.456E_-12; print "$a\n";	# 36
$a = 123.456E-_12; print "$a\n";	# 37
$a = 123.456E-1_2; print "$a\n";
$a = 123.456E-12_; print "$a\n";	# 39
$a = 1__23; print "$a\n";		# 40
$a = 12.3__4; print "$a\n";		# 41
$a = 12.34e1__2; printf("%.0f\n", $a);	# 42
no warnings 'syntax' ;
$a = _123; print "$a\n";
$a = 1_23; print "$a\n";
$a = 12_3; print "$a\n";
$a = 123_; print "$a\n";
$a = _+123; print "$a\n";
$a = +_123; print "$a\n";
$a = +1_23; print "$a\n";
$a = +12_3; print "$a\n";
$a = +123_; print "$a\n";
$a = _-123; print "$a\n";
$a = -_123; print "$a\n";
$a = -1_23; print "$a\n";
$a = -12_3; print "$a\n";
$a = -123_; print "$a\n";
$a = 123._456; print "$a\n";
$a = 123.4_56; print "$a\n";
$a = 123.45_6; print "$a\n";
$a = 123.456_; print "$a\n";
$a = +123._456; print "$a\n";
$a = +123.4_56; print "$a\n";
$a = +123.45_6; print "$a\n";
$a = +123.456_; print "$a\n";
$a = -123._456; print "$a\n";
$a = -123.4_56; print "$a\n";
$a = -123.45_6; print "$a\n";
$a = -123.456_; print "$a\n";
$a = 123.456E_12; printf("%.0f\n", $a);
$a = 123.456E1_2; printf("%.0f\n", $a);
$a = 123.456E12_; printf("%.0f\n", $a);
$a = 123.456E_+12; printf("%.0f\n", $a);
$a = 123.456E+_12; printf("%.0f\n", $a);
$a = 123.456E+1_2; printf("%.0f\n", $a);
$a = 123.456E+12_; printf("%.0f\n", $a);
$a = 123.456E_-12; print "$a\n";
$a = 123.456E-_12; print "$a\n";
$a = 123.456E-1_2; print "$a\n";
$a = 123.456E-12_; print "$a\n";
$a = 1__23; print "$a\n";
$a = 12.3__4; print "$a\n";
$a = 12.34e1__2; printf("%.0f\n", $a);
EXPECT
OPTIONS regex
Misplaced _ in number at - line 6.
Misplaced _ in number at - line 11.
Misplaced _ in number at - line 16.
Misplaced _ in number at - line 17.
Misplaced _ in number at - line 20.
Misplaced _ in number at - line 21.
Misplaced _ in number at - line 24.
Misplaced _ in number at - line 25.
Misplaced _ in number at - line 28.
Misplaced _ in number at - line 29.
Misplaced _ in number at - line 31.
Misplaced _ in number at - line 32.
Misplaced _ in number at - line 33.
Misplaced _ in number at - line 35.
Misplaced _ in number at - line 36.
Misplaced _ in number at - line 37.
Misplaced _ in number at - line 39.
Misplaced _ in number at - line 40.
Misplaced _ in number at - line 41.
Misplaced _ in number at - line 42.
_123
123
123
123
123
_123
123
123
123
-123
-_123
-123
-123
-123
123.456
123.456
123.456
123.456
123.456
123.456
123.456
123.456
-123.456
-123.456
-123.456
-123.456
123456000000000
123456000000000
123456000000000
123456000000000
123456000000000
123456000000000
123456000000000
1.23456e-0?10
1.23456e-0?10
1.23456e-0?10
1.23456e-0?10
123
12.34
12340000000000
_123
123
123
123
123
_123
123
123
123
-123
-_123
-123
-123
-123
123.456
123.456
123.456
123.456
123.456
123.456
123.456
123.456
-123.456
-123.456
-123.456
-123.456
123456000000000
123456000000000
123456000000000
123456000000000
123456000000000
123456000000000
123456000000000
1.23456e-0?10
1.23456e-0?10
1.23456e-0?10
1.23456e-0?10
123
12.34
12340000000000
########
# toke.c
use warnings 'bareword' ;
#line 25 "bar"
$a = FRED:: ;
no warnings 'bareword' ;
#line 25 "bar"
$a = FRED:: ;
EXPECT
Bareword "FRED::" refers to nonexistent package at bar line 25.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings 'bareword' ;
#line 25 "bar"
$a = FRÈD:: ;
no warnings 'bareword' ;
#line 25 "bar"
$a = FRÈD:: ;
EXPECT
Bareword "FRÈD::" refers to nonexistent package at bar line 25.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings 'bareword' ;
#line 25 "bar"
$a = ϞϞϞ:: ;
no warnings 'bareword' ;
#line 25 "bar"
$a = ϞϞϞ:: ;
EXPECT
Bareword "ϞϞϞ::" refers to nonexistent package at bar line 25.
########
# toke.c
use warnings 'ambiguous' ;
sub time {}
my $a = time() ;
no warnings 'ambiguous' ;
my $b = time() ;
EXPECT
Ambiguous call resolved as CORE::time(), qualify as such or use & at - line 4.
########
# toke.c
use warnings ;
eval <<'EOE';
#  line 30 "foo"
warn "yelp";
{
  $_ = " \x{123} " ;
}
EOE
EXPECT
yelp at foo line 30.
########
# toke.c
my $a = rand + 4 ;
$a = rand *^H ;
$a = rand $^H ;
EXPECT
Warning: Use of "rand" without parentheses is ambiguous at - line 2.
########
# toke.c
$^W = 0 ;
my $a = rand + 4 ;
{
    no warnings 'ambiguous' ;
    $a = rand + 4 ;
    use warnings 'ambiguous' ;
    $a = rand + 4 ;
}
$a = rand + 4 ;
EXPECT
Warning: Use of "rand" without parentheses is ambiguous at - line 3.
Warning: Use of "rand" without parentheses is ambiguous at - line 8.
Warning: Use of "rand" without parentheses is ambiguous at - line 10.
########
# [perl #97110]
sub myrand(;$) { }
sub whatever($) { }
my $a = myrand + 4 ;
my $b = whatever + 4 ;
EXPECT
Warning: Use of "myrand" without parentheses is ambiguous at - line 4.
########
# toke.c
use warnings "ambiguous";
print for keys %+; # should not warn
EXPECT
########
# toke.c
sub fred {};
-fred ;
sub hank : lvalue {$_}
--hank; # This should *not* warn [perl #77240]
EXPECT
Ambiguous use of -fred resolved as -&fred() at - line 3.
########
# toke.c
$^W = 0 ;
sub fred {} ;
-fred ;
{
    no warnings 'ambiguous' ;
    -fred ;
    use warnings 'ambiguous' ;
    -fred ;
}
-fred ;
EXPECT
Ambiguous use of -fred resolved as -&fred() at - line 4.
Ambiguous use of -fred resolved as -&fred() at - line 9.
Ambiguous use of -fred resolved as -&fred() at - line 11.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
sub frèd {};
-frèd ;
EXPECT
Ambiguous use of -frèd resolved as -&frèd() at - line 5.
########
# toke.c
$^W = 0 ;
use utf8;
use open qw( :utf8 :std );
sub frèd {} ;
-frèd ;
{
    no warnings 'ambiguous' ;
    -frèd ;
    use warnings 'ambiguous' ;
    -frèd ;
}
-frèd ;
EXPECT
Ambiguous use of -frèd resolved as -&frèd() at - line 6.
Ambiguous use of -frèd resolved as -&frèd() at - line 11.
Ambiguous use of -frèd resolved as -&frèd() at - line 13.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
sub ᒍᒘᒊ {};
-ᒍᒘᒊ ;
EXPECT
Ambiguous use of -ᒍᒘᒊ resolved as -&ᒍᒘᒊ() at - line 5.
########
# toke.c
$^W = 0 ;
use utf8;
use open qw( :utf8 :std );
sub ᒍᒘᒊ {} ;
-ᒍᒘᒊ ;
{
    no warnings 'ambiguous' ;
    -ᒍᒘᒊ ;
    use warnings 'ambiguous' ;
    -ᒍᒘᒊ ;
}
-ᒍᒘᒊ ;
EXPECT
Ambiguous use of -ᒍᒘᒊ resolved as -&ᒍᒘᒊ() at - line 6.
Ambiguous use of -ᒍᒘᒊ resolved as -&ᒍᒘᒊ() at - line 11.
Ambiguous use of -ᒍᒘᒊ resolved as -&ᒍᒘᒊ() at - line 13.
########
# toke.c
open FOO || time;
open local *FOO; # should be ok
EXPECT
Precedence problem: open FOO should be open(FOO) at - line 2.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
open FÒÒ || time;
EXPECT
Precedence problem: open FÒÒ should be open(FÒÒ) at - line 4.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
open ᒍOO || time;
EXPECT
Precedence problem: open ᒍOO should be open(ᒍOO) at - line 4.
########
# toke.c (and [perl #16184])
open FOO => "<&0"; close FOO;
EXPECT
########
# toke.c
$^W = 0 ;
open FOO || time;
{
    no warnings 'precedence' ;
    open FOO || time;
    use warnings 'precedence' ;
    open FOO || time;
}
open FOO || time;
open Foo::BAR; # this should not warn
EXPECT
Precedence problem: open FOO should be open(FOO) at - line 3.
Precedence problem: open FOO should be open(FOO) at - line 8.
Precedence problem: open FOO should be open(FOO) at - line 10.
########
# toke.c
$^W = 0 ;
use utf8;
use open qw( :utf8 :std );
open FÒÒ || time;
{
    no warnings 'precedence' ;
    open FÒÒ || time;
    use warnings 'precedence' ;
    open FÒÒ || time;
}
open FÒÒ || time;
EXPECT
Precedence problem: open FÒÒ should be open(FÒÒ) at - line 5.
Precedence problem: open FÒÒ should be open(FÒÒ) at - line 10.
Precedence problem: open FÒÒ should be open(FÒÒ) at - line 12.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
$^W = 0 ;
open ᒍÒÒ || time;
{
    no warnings 'precedence' ;
    open ᒍÒÒ || time;
    use warnings 'precedence' ;
    open ᒍÒÒ || time;
}
open ᒍÒÒ || time;
EXPECT
Precedence problem: open ᒍÒÒ should be open(ᒍÒÒ) at - line 5.
Precedence problem: open ᒍÒÒ should be open(ᒍÒÒ) at - line 10.
Precedence problem: open ᒍÒÒ should be open(ᒍÒÒ) at - line 12.
########
# toke.c
$^W = 0 ;
*foo *foo ;
{
    no warnings 'ambiguous' ;
    *foo *foo ;
    use warnings 'ambiguous' ;
    *foo *foo ;
}
*foo *foo ;
# These should not warn [perl #117535]:
foo**foo ;
no warnings 'deprecated';
sort $*foo ;
sort $ *foo ;
EXPECT
Operator or semicolon missing before *foo at - line 3.
Ambiguous use of * resolved as operator * at - line 3.
Operator or semicolon missing before *foo at - line 8.
Ambiguous use of * resolved as operator * at - line 8.
Operator or semicolon missing before *foo at - line 10.
Ambiguous use of * resolved as operator * at - line 10.
########
# toke.c
$^W = 0 ;
%foo %foo ;
{
    no warnings 'ambiguous' ;
    %foo %foo ;
    use warnings 'ambiguous' ;
    %foo %foo ;
}
%foo %foo ;
# This should not produce ambiguity warnings [perl #117535]:
sort $%foo ;
sort $ %foo ;
EXPECT
Operator or semicolon missing before %foo at - line 3.
Ambiguous use of % resolved as operator % at - line 3.
Operator or semicolon missing before %foo at - line 8.
Ambiguous use of % resolved as operator % at - line 8.
Operator or semicolon missing before %foo at - line 10.
Ambiguous use of % resolved as operator % at - line 10.
Bareword found where operator expected at - line 12, near "$%foo"
	(Missing operator before foo?)
Bareword found where operator expected at - line 13, near "$ %foo"
	(Missing operator before foo?)
Illegal modulus zero at - line 3.
########
# toke.c
$^W = 0 ;
&foo &foo ;
{
    no warnings 'ambiguous' ;
    &foo &foo ;
    use warnings 'ambiguous' ;
    &foo &foo ;
}
&foo &foo ;
# These should not warn produce ambiguity warnings [perl #76910]:
foo&&foo ;
sort $&foo ;
sort $ &foo ;
EXPECT
Operator or semicolon missing before &foo at - line 3.
Ambiguous use of & resolved as operator & at - line 3.
Operator or semicolon missing before &foo at - line 8.
Ambiguous use of & resolved as operator & at - line 8.
Operator or semicolon missing before &foo at - line 10.
Ambiguous use of & resolved as operator & at - line 10.
Bareword found where operator expected at - line 13, near "$&foo"
	(Missing operator before foo?)
Bareword found where operator expected at - line 14, near "$ &foo"
	(Missing operator before foo?)
Undefined subroutine &main::foo called at - line 3.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
$^W = 0 ;
*ｆｏｏ *ｆｏｏ ;
{
    no warnings 'ambiguous' ;
    *ｆｏｏ *ｆｏｏ ;
    use warnings 'ambiguous' ;
    *ｆｏｏ *ｆｏｏ ;
}
*ｆｏｏ *ｆｏｏ ;
EXPECT
Operator or semicolon missing before *ｆｏｏ at - line 5.
Ambiguous use of * resolved as operator * at - line 5.
Operator or semicolon missing before *ｆｏｏ at - line 10.
Ambiguous use of * resolved as operator * at - line 10.
Operator or semicolon missing before *ｆｏｏ at - line 12.
Ambiguous use of * resolved as operator * at - line 12.
########
# toke.c
use warnings 'misc' ;
my $a = "\m" ;
no warnings 'misc' ;
$a = "\m" ;
EXPECT
Unrecognized escape \m passed through at - line 3.
########
# toke.c
use warnings 'misc' ;
my $a = "abcd\E" ;
no warnings 'misc' ;
$a = "abcd\E" ;
EXPECT
Useless use of \E at - line 3.
########
# toke.c
use feature 'postderef', 'postderef_qq';
(\$_)->$*;
"$_->$*";
no warnings 'experimental::postderef';
(\$_)->$*;
"$_->$*";
EXPECT
Postfix dereference is experimental at - line 3.
Postfix dereference is experimental at - line 4.
########
# toke.c
use warnings 'portable' ;
my $a =  0b011111111111111111111111111111110 ;
   $a =  0b011111111111111111111111111111111 ;
   $a =  0b111111111111111111111111111111111 ;
   $a =  0x0fffffffe ;
   $a =  0x0ffffffff ;
   $a =  0x1ffffffff ;
   $a =  0037777777776 ;
   $a =  0037777777777 ;
   $a =  0047777777777 ;
no warnings 'portable' ;
   $a =  0b011111111111111111111111111111110 ;
   $a =  0b011111111111111111111111111111111 ;
   $a =  0b111111111111111111111111111111111 ;
   $a =  0x0fffffffe ;
   $a =  0x0ffffffff ;
   $a =  0x1ffffffff ;
   $a =  0037777777776 ;
   $a =  0037777777777 ;
   $a =  0047777777777 ;
EXPECT
Binary number > 0b11111111111111111111111111111111 non-portable at - line 5.
Hexadecimal number > 0xffffffff non-portable at - line 8.
Octal number > 037777777777 non-portable at - line 11.
########
# toke.c
use warnings 'overflow' ;
my $a =  0b011111111111111111111111111111110 ;
   $a =  0b011111111111111111111111111111111 ;
   $a =  0b10000000000000000000000000000000000000000000000000000000000000000 ;
   $a =  0x0fffffffe ;
   $a =  0x0ffffffff ;
   $a =  0x10000000000000000 ;
   $a =  0037777777776 ;
   $a =  0037777777777 ;
   $a =  002000000000000000000000;
no warnings 'overflow' ;
   $a =  0b011111111111111111111111111111110 ;
   $a =  0b011111111111111111111111111111111 ;
   $a =  0b10000000000000000000000000000000000000000000000000000000000000000 ;
   $a =  0x0fffffffe ;
   $a =  0x0ffffffff ;
   $a =  0x10000000000000000 ;
   $a =  0037777777776 ;
   $a =  0037777777777 ;
   $a =  002000000000000000000000;
EXPECT
Integer overflow in binary number at - line 5.
Integer overflow in hexadecimal number at - line 8.
Integer overflow in octal number at - line 11.
########
# toke.c
BEGIN { $^C = 1; }
use warnings 'misc';
dump;
CORE::dump;
EXPECT
dump() better written as CORE::dump() at - line 4.
- syntax OK
########
# toke.c
use warnings 'misc';
use subs qw/dump/;
sub dump { print "no warning for overridden dump\n"; }
dump;
EXPECT
no warning for overridden dump
########
# toke.c
use warnings 'ambiguous';
"@mjd_previously_unused_array";        
no warnings 'ambiguous';
"@mjd_previously_unused_array2";        
EXPECT
Possible unintended interpolation of @mjd_previously_unused_array in string at - line 3.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings 'ambiguous';
"@mjd_previously_unused_àrray";        
no warnings 'ambiguous';
"@mjd_previously_unused_àrray2";        
EXPECT
Possible unintended interpolation of @mjd_previously_unused_àrray in string at - line 5.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings 'ambiguous';
"@mjd_previously_unused_ぁrrぁy";        
no warnings 'ambiguous';
"@mjd_previously_unused_ぁrrぁy2";        
EXPECT
Possible unintended interpolation of @mjd_previously_unused_ぁrrぁy in string at - line 5.
########
# toke.c
# 20020328 mjd-perl-patch+@plover.com at behest of jfriedl@yahoo.com
use warnings 'regexp';
"foo" =~ /foo/c;
"foo" =~ /foo/cg;
no warnings 'regexp';
"foo" =~ /foo/c;
"foo" =~ /foo/cg;
EXPECT
Use of /c modifier is meaningless without /g at - line 4.
########
# toke.c
# 20020328 mjd-perl-patch+@plover.com at behest of jfriedl@yahoo.com
use warnings 'regexp';
$_ = "ab" ; 
s/ab/ab/c;
s/ab/ab/cg;
no warnings 'regexp';
s/ab/ab/c;
s/ab/ab/cg;
EXPECT
Use of /c modifier is meaningless in s/// at - line 5.
Use of /c modifier is meaningless in s/// at - line 6.
########
-wa
# toke.c
# 20020414 mjd-perl-patch+@plover.com # -a flag should suppress these warnings
print "@F\n";
EXPECT

########
-w
# toke.c
# 20020414 mjd-perl-patch+@plover.com # -a flag should suppress these warnings
print "@F\n";
EXPECT
Possible unintended interpolation of @F in string at - line 4.
Name "main::F" used only once: possible typo at - line 4.
########
-wa
# toke.c
# 20020414 mjd-perl-patch+@plover.com
EXPECT

########
# toke.c
# 20020414 mjd-perl-patch+@plover.com
# In 5.7.3, this emitted "Possible unintended interpolation" warnings
use warnings 'ambiguous';
$s = "(@-)(@+)";
EXPECT

########
# toke.c
# mandatory warning
eval q/if ($a) { } elseif ($b) { }/;
no warnings "syntax";
eval q/if ($a) { } elseif ($b) { }/;
EXPECT
elseif should be elsif at (eval 1) line 1.
########
# toke.c
# mandatory warning
eval q/5 6/;
no warnings "syntax";
eval q/5 6/;
EXPECT
Number found where operator expected at (eval 1) line 1, near "5 6"
	(Missing operator before  6?)
########
# toke.c
use warnings "syntax"; no warnings "deprecated";
$_ = $a = 1;
$a !=~  /1/;
$a !=~ m#1#;
$a !=~/1/;
$a !=~ ?/?;
$a !=~ y/1//;
$a !=~ tr/1//;
$a !=~ s/1//;
$a != ~/1/;
no warnings "syntax";
$a !=~  /1/;
$a !=~ m#1#;
$a !=~/1/;
$a !=~ ?/?;
$a !=~ y/1//;
$a !=~ tr/1//;
$a !=~ s/1//;
EXPECT
!=~ should be !~ at - line 4.
!=~ should be !~ at - line 5.
!=~ should be !~ at - line 6.
!=~ should be !~ at - line 7.
!=~ should be !~ at - line 8.
!=~ should be !~ at - line 9.
!=~ should be !~ at - line 10.
########
# toke.c
our $foo :unique;
sub pam :locked;
sub glipp :locked {
}
sub whack_eth ($) : locked {
}
no warnings 'deprecated';
our $bar :unique;
sub zapeth :locked;
sub ker_plop :locked {
}
sub swa_a_p ($) : locked {
}
EXPECT
Use of :unique is deprecated at - line 2.
Use of :locked is deprecated at - line 3.
Use of :locked is deprecated at - line 4.
Use of :locked is deprecated at - line 6.
########
# toke.c
use warnings "syntax"; use feature 'lexical_subs';
sub proto_after_array(@$);
sub proto_after_arref(\@$);
sub proto_after_arref2(\[@$]);
sub proto_after_arref3(\[@$]_);
sub proto_after_hash(%$);
sub proto_after_hashref(\%$);
sub proto_after_hashref2(\[%$]);
sub underscore_last_pos($_);
sub underscore2($_;$);
sub underscore_fail($_$);
sub underscore_after_at(@_);
our sub hour (@$);
my sub migh (@$);
use feature 'state';
state sub estate (@$);
package other;
sub hour (@$);
sub migh (@$);
sub estate (@$);
no warnings "syntax";
sub proto_after_array(@$);
sub proto_after_hash(%$);
sub underscore_fail($_$);
EXPECT
Prototype after '@' for main::proto_after_array : @$ at - line 3.
Prototype after '%' for main::proto_after_hash : %$ at - line 7.
Illegal character after '_' in prototype for main::underscore_fail : $_$ at - line 12.
Prototype after '@' for main::underscore_after_at : @_ at - line 13.
The lexical_subs feature is experimental at - line 14.
Prototype after '@' for hour : @$ at - line 14.
The lexical_subs feature is experimental at - line 15.
Prototype after '@' for migh : @$ at - line 15.
The lexical_subs feature is experimental at - line 17.
Prototype after '@' for estate : @$ at - line 17.
Prototype after '@' for hour : @$ at - line 19.
Prototype after '@' for migh : @$ at - line 20.
Prototype after '@' for estate : @$ at - line 21.
########
# toke.c
use warnings "ambiguous";
"foo\nn" =~ /^foo$\n/;
"foo\nn" =~ /^foo${\}n/;
my $foo = qr/^foo$\n/;
my $bar = qr/^foo${\}n/;
no warnings "ambiguous";
"foo\nn" =~ /^foo$\n/;
"foo\nn" =~ /^foo${\}n/;
my $foo = qr/^foo$\n/;
my $bar = qr/^foo${\}n/;
EXPECT
Possible unintended interpolation of $\ in regex at - line 3.
Possible unintended interpolation of $\ in regex at - line 5.
########
# toke.c
use warnings 'syntax' ;
my $a = "\o";
my $a = "\o{";
my $a = "\o{}";
no warnings 'syntax' ;
my $a = "\o";
my $a = "\o{";
my $a = "\o{}";
EXPECT
Missing braces on \o{} at - line 3, within string
Missing right brace on \o{ at - line 4, within string
Number with no digits at - line 5, within string
BEGIN not safe after errors--compilation aborted at - line 6.
########
# toke.c
use warnings 'digit' ;
my $a = "\o{1238456}";
no warnings 'digit' ;
my $a = "\o{1238456}";
EXPECT
Non-octal character '8'.  Resolved as "\o{123}" at - line 3.
########
# toke.c
use warnings;
my $a = "foo";
print $a =~ ?f? ? "yes\n" : "no\n" foreach 0..2;
EXPECT
Use of ?PATTERN? without explicit operator is deprecated at - line 4.
yes
no
no
########
# toke.c
use warnings;
$a = "\c,";
$a = "\c`";
no warnings 'syntax';
$a = "\c,";
$a = "\c`";
EXPECT
"\c," is more clearly written simply as "l" at - line 3.
"\c`" is more clearly written simply as "\ " at - line 4.
########
# toke.c
use warnings;
my $a = "\c{ack}";
EXPECT
OPTION fatal
Use ";" instead of "\c{" at - line 3.
########
# toke.c
my $a = "\câ";
EXPECT
OPTION fatal
Character following "\c" must be printable ASCII at - line 2.
########
# toke.c
use warnings 'syntax' ;
my $a = qr/foo/du;
$a = qr/foo/lai;
$a = qr/foo/lil;
$a = qr/foo/aia;
$a = qr/foo/aaia;
no warnings 'syntax' ;
my $a = qr/foo/du;
EXPECT
Regexp modifiers "/d" and "/u" are mutually exclusive at - line 3, near "= "
Regexp modifiers "/l" and "/a" are mutually exclusive at - line 4, near "= "
Regexp modifier "/l" may not appear twice at - line 5, near "= "
Regexp modifier "/a" may appear a maximum of twice at - line 7, near "= "
BEGIN not safe after errors--compilation aborted at - line 8.
########
# toke.c
# [perl #4362]
eval "print q\xabfoo";
print "ok\n" if
    $@ =~ /Can't find string terminator "\xab" anywhere before EOF/;
EXPECT
ok
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings 'ambiguous' ;
sub frèd {}
$a = ${frèd} ;
no warnings 'ambiguous' ;
$a = ${frèd} ;
EXPECT
Ambiguous use of ${frèd} resolved to $frèd at - line 6.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings 'ambiguous' ;
sub f렏 {}
$a = ${f렏} ;
no warnings 'ambiguous' ;
$a = ${f렏} ;
EXPECT
Ambiguous use of ${f렏} resolved to $f렏 at - line 6.
########
# toke.c
use utf8;
use open qw( :utf8 :std );
use warnings;
CORE::렏;
EXPECT
CORE::렏 is not a keyword at - line 5.
########
# toke.c
# [perl #16249]
print '';
eval this_method_is_fake ();
EXPECT
Undefined subroutine &main::this_method_is_fake called at - line 4.
########
# toke.c
# [perl #107002] Erroneous ambiguity warnings
sub { # do not actually call require
  require a::b . 1; # These used to produce erroneous
  require a::b + 1; # ambiguity warnings.
}
EXPECT
########
# toke.c
# [perl #113094], [perl #119101]
print "aa" =~ m{^a\{1,2\}$}, "\n";
print "aa" =~ m{^a\x\{61\}$}, "\n";
print "a\\x{6F}" =~ m{^a\\x\{6F\}$}, "\n";
print "a\\o" =~ m{^a\\\x\{6F\}$}, "\n";
print "a\\\\x{6F}" =~ m{^a\\\\x\{6F\}$}, "\n";
print "a\\\\o"     =~ m{^a\\\\\x\{6F\}$}, "\n";
print "aa" =~ m{^a{1,2}$}, "\n";
print "aq" =~ m[^a\[a-z\]$], "\n";
print "aq" =~ m(^a\(q\)$), "\n";
no warnings 'deprecated';
print "aa" =~ m{^a\{1,2\}$}, "\n";
print "aa" =~ m{^a\x\{61\}$}, "\n";
print "a\\x{6F}" =~ m{^a\\x\{6F\}$}, "\n";
print "a\\o" =~ m{^a\\\x\{6f\}$}, "\n";
print "aq" =~ m[^a\[a-z\]$], "\n";
print "aq" =~ m(^a\(q\)$), "\n";
EXPECT
Useless use of '\'; doesn't escape metacharacter '{' at - line 3.
Useless use of '\'; doesn't escape metacharacter '{' at - line 4.
Useless use of '\'; doesn't escape metacharacter '{' at - line 6.
Useless use of '\'; doesn't escape metacharacter '{' at - line 8.
Useless use of '\'; doesn't escape metacharacter '[' at - line 10.
Useless use of '\'; doesn't escape metacharacter '(' at - line 11.
1
1
1
1
1
1
1
1
q
1
1
1
1
1
q
########
# toke.c
#[perl #119123] disallow literal control character variables
eval "\$\cQ = 25";
eval "\${ \cX } = 24";
*{
    Foo
}; # shouldn't warn on {\n, even though \n is a control character
EXPECT
Use of literal control characters in variable names is deprecated at (eval 1) line 1.
Use of literal control characters in variable names is deprecated at (eval 2) line 1.
########
# toke.c
# [perl #120288] -X at start of line gave spurious warning, where X is not
# a filetest operator
-a;
;-a;
EXPECT
	Global
`s`	Focus search bar
`?`	Bring up this help dialog
	GitHub
`g` `p`	Go to pull requests
`g` `i`	go to github issues (only if github is preferred repository)
	POD
`g` `a`	Go to author
`g` `c`	Go to changes
`g` `i`	Go to issues
`g` `d`	Go to dist
`g` `r`	Go to repository/SCM
`g` `s`	Go to source
`g` `b`	Go to file browse
	Search terms
module: (e.g. module:Plugin)
distribution: (e.g. distribution:Dancer auth)
author: (e.g. author:SONGMU Redis)
version: (e.g. version:1.00)