#!./perl
-# $RCSfile: regexp.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:20 $
+# XXX known to leak scalars
+$ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3;
+
+# The tests are in a separate file 't/op/re_tests'.
+# Each line in that file is a separate test.
+# There are five columns, separated by tabs.
+#
+# Column 1 contains the pattern, optionally enclosed in C<''>.
+# Modifiers can be put after the closing C<'>.
+#
+# Column 2 contains the string to be matched.
+#
+# Column 3 contains the expected result:
+# y expect a match
+# n expect no match
+# c expect an error
+# B test exposes a known bug in Perl, should be skipped
+# b test exposes a known bug in Perl, should be skipped if noamp
+#
+# Columns 4 and 5 are used only if column 3 contains C<y> or C<c>.
+#
+# Column 4 contains a string, usually C<$&>.
+#
+# Column 5 contains the expected result of double-quote
+# interpolating that string after the match, or start of error message.
+#
+# \n in the tests are interpolated, as are variables of the form ${\w+}.
+#
+# If you want to add a regular expression test that can't be expressed
+# in this format, don't add it here: put it in op/pat.t instead.
+
+BEGIN {
+ chdir 't' if -d 't';
+ @INC = '../lib';
+}
+
+$iters = shift || 1; # Poor man performance suite, 10000 is OK.
+
+open(TESTS,'op/re_tests') || open(TESTS,'t/op/re_tests') ||
+ die "Can't open re_tests";
-open(TESTS,'op/re_tests') || open(TESTS,'t/op/re_tests')
- || die "Can't open re_tests";
while (<TESTS>) { }
$numtests = $.;
-close(TESTS);
+seek(TESTS,0,0);
+$. = 0;
+
+$bang = sprintf "\\%03o", ord "!"; # \41 would not be portable.
+$ffff = chr(0xff) x 2;
+$nulnul = "\0" x 2;
-print "1..$numtests\n";
-open(TESTS,'op/re_tests') || open(TESTS,'t/op/re_tests')
- || die "Can't open re_tests";
$| = 1;
+print "1..$numtests\n# $iters iterations\n";
+TEST:
while (<TESTS>) {
- ($pat, $subject, $result, $repl, $expect) = split(/[\t\n]/,$_);
+ chomp;
+ s/\\n/\n/g;
+ ($pat, $subject, $result, $repl, $expect) = split(/\t/,$_);
$input = join(':',$pat,$subject,$result,$repl,$expect);
- $pat = "'$pat'" unless $pat =~ /^'/;
- eval "\$match = (\$subject =~ m$pat); \$got = \"$repl\";";
- if ($result eq 'c') {
- if ($@ ne '') {print "ok $.\n";} else {print "not ok $.\n";}
- }
- elsif ($result eq 'n') {
- if (!$match) {print "ok $.\n";} else {print "not ok $. $input => $got\n";}
- }
- else {
- if ($match && $got eq $expect) {
- print "ok $.\n";
+ infty_subst(\$pat);
+ infty_subst(\$expect);
+ $pat = "'$pat'" unless $pat =~ /^[:']/;
+ $pat =~ s/(\$\{\w+\})/$1/eeg;
+ $pat =~ s/\\n/\n/g;
+ $subject =~ s/(\$\{\w+\})/$1/eeg;
+ $subject =~ s/\\n/\n/g;
+ $expect =~ s/(\$\{\w+\})/$1/eeg;
+ $expect =~ s/\\n/\n/g;
+ $expect = $repl = '-' if $skip_amp and $input =~ /\$[&\`\']/;
+ $skip = ($skip_amp ? ($result =~ s/B//i) : ($result =~ s/B//));
+ # Certain tests don't work with utf8 (the re_test should be in UTF8)
+ $skip = 1 if ($^H &= ~0x00000008) && $pat =~ /\[:\^(alnum|print|word):\]/;
+ $result =~ s/B//i unless $skip;
+ for $study ('', 'study \$subject') {
+ $c = $iters;
+ eval "$study; \$match = (\$subject =~ m$pat) while \$c--; \$got = \"$repl\";";
+ chomp( $err = $@ );
+ if ($result eq 'c') {
+ if ($err !~ m!^\Q$expect!) { print "not ok $. (compile) $input => `$err'\n"; next TEST }
+ last; # no need to study a syntax error
+ }
+ elsif ( $skip ) {
+ print "ok $. # skipped\n"; next TEST;
+ }
+ elsif ($@) {
+ print "not ok $. $input => error `$err'\n"; next TEST;
+ }
+ elsif ($result eq 'n') {
+ if ($match) { print "not ok $. ($study) $input => false positive\n"; next TEST }
}
else {
- print "not ok $. $input => $got\n";
+ if (!$match || $got ne $expect) {
+ print "not ok $. ($study) $input => `$got', match=$match\n";
+ next TEST;
+ }
}
}
+ print "ok $.\n";
}
+
close(TESTS);
+
+sub infty_subst # Special-case substitution
+{ # of $reg_infty and friends
+ my $tp = shift;
+ $$tp =~ s/,\$reg_infty_m}/,$reg_infty_m}/o;
+ $$tp =~ s/,\$reg_infty_p}/,$reg_infty_p}/o;
+ $$tp =~ s/,\$reg_infty}/,$reg_infty}/o;
+}