Warn about false ranges like \d-\w (see the change #4355).

[p5sagit/p5-mst-13.2.git] / t / pragma / warn / regcomp

  regcomp.c	AOK

  Strange *+?{} on zero-length expression	[S_study_chunk]
	/(?=a)?/

  %.*s matches null string many times   	[S_regpiece]
	$a = "ABC123" ; $a =~ /(?=a)*/'

  /%.127s/: Unrecognized escape \\%c passed through"	[S_regatom] 
  	/\m/

  Character class syntax [. .] is reserved for future extensions [S_regpposixcc]

  Character class syntax [= =] is reserved for future extensions [S_checkposixcc]

  Character class syntax [%c %c] belongs inside character classes [S_checkposixcc] 
  
  /%.127s/: false [] range \"%*.*s\" in regexp [S_regclass]

  /%.127s/: false [] range \"%*.*s\" in regexp [S_regclassutf8]

__END__
# regcomp.c [S_regpiece]
use warnings 'unsafe' ;
my $a = "ABC123" ; 
$a =~ /(?=a)*/ ;
no warnings 'unsafe' ;
$a =~ /(?=a)*/ ;
EXPECT
(?=a)* matches null string many times at - line 4.
########
# regcomp.c [S_study_chunk]
use warnings 'unsafe' ;
$_ = "" ;
/(?=a)?/;
no warnings 'unsafe' ;
/(?=a)?/;
EXPECT
Strange *+?{} on zero-length expression at - line 4.
########
# regcomp.c [S_regatom]
use warnings 'unsafe' ;
$a =~ /\m/ ;
no warnings 'unsafe' ;
EXPECT
Unrecognized escape \m passed through at - line 3.
########
# regcomp.c [S_regpposixcc S_checkposixcc]
use warnings 'unsafe' ;
$_ = "" ;
/[:alpha:]/;
/[.bar.]/;
/[=zog=]/;
/[[:alpha:]]/;
/[[.foo.]]/;
/[[=bar=]]/;
/[:zog:]/;
no warnings 'unsafe' ;
/[:alpha:]/;
/[.foo.]/;
/[=bar=]/;
/[[:alpha:]]/;
/[[.foo.]]/;
/[[=bar=]]/;
/[:zog:]/;
/[[:zog:]]/;
EXPECT
Character class syntax [: :] belongs inside character classes at - line 4.
Character class syntax [. .] belongs inside character classes at - line 5.
Character class syntax [. .] is reserved for future extensions at - line 5.
Character class syntax [= =] belongs inside character classes at - line 6.
Character class syntax [= =] is reserved for future extensions at - line 6.
Character class syntax [. .] is reserved for future extensions at - line 8.
Character class syntax [= =] is reserved for future extensions at - line 9.
Character class syntax [: :] belongs inside character classes at - line 10.
Character class [:zog:] unknown at - line 19.
########
# regcomp.c [S_regclass]
$_ = "";
use warnings 'unsafe' ;
/[a-b]/;
/[a-\d]/;
/[\d-b]/;
/[\s-\d]/;
/[\d-\s]/;
/[a-[:digit:]]/;
/[[:digit:]-b]/;
/[[:alpha:]-[:digit:]]/;
/[[:digit:]-[:alpha:]]/;
no warnings 'unsafe' ;
/[a-b]/;
/[a-\d]/;
/[\d-b]/;
/[\s-\d]/;
/[\d-\s]/;
/[a-[:digit:]]/;
/[[:digit:]-b]/;
/[[:alpha:]-[:digit:]]/;
/[[:digit:]-[:alpha:]]/;
EXPECT
/[a-\d]/: false [] range "a-\d" in regexp at - line 5.
/[\d-b]/: false [] range "\d-" in regexp at - line 6.
/[\s-\d]/: false [] range "\s-" in regexp at - line 7.
/[\d-\s]/: false [] range "\d-" in regexp at - line 8.
/[a-[:digit:]]/: false [] range "a-[:digit:]" in regexp at - line 9.
/[[:digit:]-b]/: false [] range "[:digit:]-" in regexp at - line 10.
/[[:alpha:]-[:digit:]]/: false [] range "[:alpha:]-" in regexp at - line 11.
/[[:digit:]-[:alpha:]]/: false [] range "[:digit:]-" in regexp at - line 12.
########
# regcomp.c [S_regclassutf8]
use utf8;
$_ = "";
use warnings 'unsafe' ;
/[a-b]/;
/[a-\d]/;
/[\d-b]/;
/[\s-\d]/;
/[\d-\s]/;
/[a-[:digit:]]/;
/[[:digit:]-b]/;
/[[:alpha:]-[:digit:]]/;
/[[:digit:]-[:alpha:]]/;
no warnings 'unsafe' ;
/[a-b]/;
/[a-\d]/;
/[\d-b]/;
/[\s-\d]/;
/[\d-\s]/;
/[a-[:digit:]]/;
/[[:digit:]-b]/;
/[[:alpha:]-[:digit:]]/;
/[[:digit:]-[:alpha:]]/;
EXPECT
/[a-\d]/: false [] range "a-\d" in regexp at - line 6.
/[\d-b]/: false [] range "\d-" in regexp at - line 7.
/[\s-\d]/: false [] range "\s-" in regexp at - line 8.
/[\d-\s]/: false [] range "\d-" in regexp at - line 9.
/[a-[:digit:]]/: false [] range "a-[:digit:]" in regexp at - line 10.
/[[:digit:]-b]/: false [] range "[:digit:]-" in regexp at - line 11.
/[[:alpha:]-[:digit:]]/: false [] range "[:alpha:]-" in regexp at - line 12.
/[[:digit:]-[:alpha:]]/: false [] range "[:digit:]-" in regexp at - line 13.