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test.pl's runperl() can now optionally redirect STDIN from /dev/null
[perl5.git] / t / test.pl
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69026470 1#
f69d9fdf
KW
2# t/test.pl - most of Test::More functionality without the fuss, plus
3# has mappings native_to_latin1 and latin1_to_native so that fewer tests
4# on non ASCII-ish platforms need to be skipped
485f531e
DL
5
6
7# NOTE:
8#
9# Increment ($x++) has a certain amount of cleverness for things like
10#
11# $x = 'zz';
12# $x++; # $x eq 'aaa';
69026470 13#
485f531e
DL
14# stands more chance of breaking than just a simple
15#
16# $x = $x + 1
17#
18# In this file, we use the latter "Baby Perl" approach, and increment
19# will be worked over by t/op/inc.t
69026470 20
dcc7f481 21$Level = 1;
69026470
JH
22my $test = 1;
23my $planned;
6137113d 24my $noplan;
5fe9b82b 25my $Perl; # Safer version of $^X set by which_perl()
69026470 26
ef237063
NC
27# This defines ASCII/UTF-8 vs EBCDIC/UTF-EBCDIC
28$::IS_ASCII = ord 'A' == 65;
29$::IS_EBCDIC = ord 'A' == 193;
30
7d932aad 31$TODO = 0;
b6345914 32$NO_ENDING = 0;
02455492 33$Tests_Are_Passing = 1;
7d932aad 34
3d66076a
MS
35# Use this instead of print to avoid interference while testing globals.
36sub _print {
37 local($\, $", $,) = (undef, ' ', '');
38 print STDOUT @_;
39}
40
41sub _print_stderr {
42 local($\, $", $,) = (undef, ' ', '');
43 print STDERR @_;
44}
45
69026470
JH
46sub plan {
47 my $n;
48 if (@_ == 1) {
49 $n = shift;
6137113d
NC
50 if ($n eq 'no_plan') {
51 undef $n;
52 $noplan = 1;
53 }
69026470
JH
54 } else {
55 my %plan = @_;
8210c8d3 56 $n = $plan{tests};
69026470 57 }
3d66076a 58 _print "1..$n\n" unless $noplan;
69026470
JH
59 $planned = $n;
60}
61
c4ef7183
MS
62
63# Set the plan at the end. See Test::More::done_testing.
64sub done_testing {
65 my $n = $test - 1;
66 $n = shift if @_;
67
68 _print "1..$n\n";
69 $planned = $n;
70}
71
72
69026470
JH
73END {
74 my $ran = $test - 1;
6137113d
NC
75 if (!$NO_ENDING) {
76 if (defined $planned && $planned != $ran) {
3d66076a 77 _print_stderr
6137113d
NC
78 "# Looks like you planned $planned tests but ran $ran.\n";
79 } elsif ($noplan) {
3d66076a 80 _print "1..$ran\n";
6137113d 81 }
69026470
JH
82 }
83}
84
de522f7a 85sub _diag {
cf8feb78 86 return unless @_;
92c9394b 87 my @mess = _comment(@_);
44826442 88 $TODO ? _print(@mess) : _print_stderr(@mess);
de522f7a
MS
89}
90
93f09d7b 91# Use this instead of "print STDERR" when outputting failure diagnostic
92c9394b 92# messages
485f531e
DL
93sub diag {
94 _diag(@_);
95}
96
93f09d7b 97# Use this instead of "print" when outputting informational messages
92c9394b
MS
98sub note {
99 return unless @_;
100 _print( _comment(@_) );
101}
102
445876fa
KW
103sub is_miniperl {
104 return !defined &DynaLoader::boot_DynaLoader;
105}
106
92c9394b
MS
107sub _comment {
108 return map { /^#/ ? "$_\n" : "# $_\n" }
109 map { split /\n/ } @_;
110}
111
f12ade25
FC
112sub _have_dynamic_extension {
113 my $extension = shift;
114 unless (eval {require Config; 1}) {
115 warn "test.pl had problems loading Config: $@";
116 return 1;
117 }
118 $extension =~ s!::!/!g;
119 return 1 if ($Config::Config{extensions} =~ /\b$extension\b/);
120}
121
69026470
JH
122sub skip_all {
123 if (@_) {
7bb7fa38 124 _print "1..0 # Skip @_\n";
69026470 125 } else {
3d66076a 126 _print "1..0\n";
69026470
JH
127 }
128 exit(0);
129}
130
c82d0e1e 131sub skip_all_if_miniperl {
445876fa 132 skip_all(@_) if is_miniperl();
c82d0e1e
NC
133}
134
273be65c 135sub skip_all_without_dynamic_extension {
f12ade25 136 my ($extension) = @_;
273be65c 137 skip_all("no dynamic loading on miniperl, no $extension") if is_miniperl();
f12ade25 138 return if &_have_dynamic_extension;
7465bc32
NC
139 skip_all("$extension was not built");
140}
141
e05e9c3d
NC
142sub skip_all_without_perlio {
143 skip_all('no PerlIO') unless PerlIO::Layer->find('perlio');
144}
145
9c8416b2 146sub skip_all_without_config {
cb01154c 147 unless (eval {require Config; 1}) {
9c8416b2
NC
148 warn "test.pl had problems loading Config: $@";
149 return;
150 }
77ba2250
NC
151 foreach (@_) {
152 next if $Config::Config{$_};
153 my $key = $_; # Need to copy, before trying to modify.
9c8416b2
NC
154 $key =~ s/^use//;
155 $key =~ s/^d_//;
77ba2250 156 skip_all("no $key");
9c8416b2 157 }
9c8416b2
NC
158}
159
9c86860c 160sub find_git_or_skip {
fb7d5399 161 my ($source_dir, $reason);
962ff913 162 if (-d '.git') {
fb7d5399 163 $source_dir = '.';
962ff913 164 } elsif (-l 'MANIFEST' && -l 'AUTHORS') {
7eccb5a9
NC
165 my $where = readlink 'MANIFEST';
166 die "Can't readling MANIFEST: $!" unless defined $where;
167 die "Confusing symlink target for MANIFEST, '$where'"
168 unless $where =~ s!/MANIFEST\z!!;
169 if (-d "$where/.git") {
170 # Looks like we are in a symlink tree
fb7d5399
NC
171 if (exists $ENV{GIT_DIR}) {
172 diag("Found source tree at $where, but \$ENV{GIT_DIR} is $ENV{GIT_DIR}. Not changing it");
173 } else {
174 note("Found source tree at $where, setting \$ENV{GIT_DIR}");
175 $ENV{GIT_DIR} = "$where/.git";
176 }
177 $source_dir = $where;
7eccb5a9
NC
178 }
179 }
fb7d5399 180 if ($source_dir) {
962ff913
NC
181 my $version_string = `git --version`;
182 if (defined $version_string
183 && $version_string =~ /\Agit version (\d+\.\d+\.\d+)(.*)/) {
fb7d5399 184 return $source_dir if eval "v$1 ge v1.5.0";
962ff913
NC
185 # If you have earlier than 1.5.0 and it works, change this test
186 $reason = "in git checkout, but git version '$1$2' too old";
187 } else {
188 $reason = "in git checkout, but cannot run git";
189 }
190 } else {
191 $reason = 'not being run from a git checkout';
192 }
9c86860c
NC
193 skip_all($reason) if $_[0] && $_[0] eq 'all';
194 skip($reason, @_);
195}
196
779248a0
CK
197sub BAIL_OUT {
198 my ($reason) = @_;
199 _print("Bail out! $reason\n");
200 exit 255;
201}
202
69026470 203sub _ok {
7d932aad 204 my ($pass, $where, $name, @mess) = @_;
69026470
JH
205 # Do not try to microoptimize by factoring out the "not ".
206 # VMS will avenge.
7d932aad
MS
207 my $out;
208 if ($name) {
b734d6c9
MS
209 # escape out '#' or it will interfere with '# skip' and such
210 $name =~ s/#/\\#/g;
7d932aad 211 $out = $pass ? "ok $test - $name" : "not ok $test - $name";
69026470 212 } else {
7d932aad 213 $out = $pass ? "ok $test" : "not ok $test";
69026470 214 }
7d932aad 215
02455492
NC
216 if ($TODO) {
217 $out = $out . " # TODO $TODO";
218 } else {
219 $Tests_Are_Passing = 0 unless $pass;
220 }
221
3d66076a 222 _print "$out\n";
7d932aad 223
9b9ae264
DM
224 if ($pass) {
225 note @mess; # Ensure that the message is properly escaped.
226 }
227 else {
ffb73d65
CB
228 my $msg = "# Failed test $test - ";
229 $msg.= "$name " if $name;
230 $msg .= "$where\n";
231 _diag $msg;
9b9ae264 232 _diag @mess;
69026470 233 }
7d932aad 234
485f531e 235 $test = $test + 1; # don't use ++
1577bb16
MS
236
237 return $pass;
69026470
JH
238}
239
240sub _where {
dcc7f481 241 my @caller = caller($Level);
69026470
JH
242 return "at $caller[1] line $caller[2]";
243}
244
1d662fb6 245# DON'T use this for matches. Use like() instead.
c3029c66 246sub ok ($@) {
7d932aad
MS
247 my ($pass, $name, @mess) = @_;
248 _ok($pass, _where(), $name, @mess);
69026470
JH
249}
250
b3c72391
JH
251sub _q {
252 my $x = shift;
253 return 'undef' unless defined $x;
254 my $q = $x;
d279d8f8
NC
255 $q =~ s/\\/\\\\/g;
256 $q =~ s/'/\\'/g;
b3c72391
JH
257 return "'$q'";
258}
259
677fb045
NC
260sub _qq {
261 my $x = shift;
262 return defined $x ? '"' . display ($x) . '"' : 'undef';
263};
264
265# keys are the codes \n etc map to, values are 2 char strings such as \n
266my %backslash_escape;
267foreach my $x (split //, 'nrtfa\\\'"') {
268 $backslash_escape{ord eval "\"\\$x\""} = "\\$x";
269}
270# A way to display scalars containing control characters and Unicode.
271# Trying to avoid setting $_, or relying on local $_ to work.
272sub display {
273 my @result;
274 foreach my $x (@_) {
275 if (defined $x and not ref $x) {
276 my $y = '';
277 foreach my $c (unpack("U*", $x)) {
278 if ($c > 255) {
11ea18f2 279 $y = $y . sprintf "\\x{%x}", $c;
677fb045 280 } elsif ($backslash_escape{$c}) {
11ea18f2 281 $y = $y . $backslash_escape{$c};
677fb045
NC
282 } else {
283 my $z = chr $c; # Maybe we can get away with a literal...
1cfccccd
KW
284 if ($z =~ /[[:^print:]]/) {
285
286 # Use octal for characters traditionally expressed as
287 # such: the low controls
288 if ($c <= 037) {
289 $z = sprintf "\\%03o", $c;
290 } else {
291 $z = sprintf "\\x{%x}", $c;
292 }
293 }
11ea18f2 294 $y = $y . $z;
677fb045
NC
295 }
296 }
297 $x = $y;
298 }
299 return $x unless wantarray;
300 push @result, $x;
301 }
302 return @result;
303}
304
c3029c66 305sub is ($$@) {
7d932aad 306 my ($got, $expected, $name, @mess) = @_;
c831d34f
MS
307
308 my $pass;
309 if( !defined $got || !defined $expected ) {
310 # undef only matches undef
311 $pass = !defined $got && !defined $expected;
312 }
313 else {
314 $pass = $got eq $expected;
315 }
316
69026470 317 unless ($pass) {
d5f8084a
KW
318 unshift(@mess, "# got "._qq($got)."\n",
319 "# expected "._qq($expected)."\n");
69026470 320 }
7d932aad 321 _ok($pass, _where(), $name, @mess);
69026470
JH
322}
323
c3029c66 324sub isnt ($$@) {
3e90d5a3 325 my ($got, $isnt, $name, @mess) = @_;
c831d34f
MS
326
327 my $pass;
328 if( !defined $got || !defined $isnt ) {
329 # undef only matches undef
330 $pass = defined $got || defined $isnt;
331 }
332 else {
333 $pass = $got ne $isnt;
334 }
335
3e90d5a3 336 unless( $pass ) {
d5f8084a 337 unshift(@mess, "# it should not be "._qq($got)."\n",
3e90d5a3
MS
338 "# but it is.\n");
339 }
340 _ok($pass, _where(), $name, @mess);
341}
342
c3029c66 343sub cmp_ok ($$$@) {
58d76dfd
JH
344 my($got, $type, $expected, $name, @mess) = @_;
345
346 my $pass;
347 {
348 local $^W = 0;
349 local($@,$!); # don't interfere with $@
350 # eval() sometimes resets $!
351 $pass = eval "\$got $type \$expected";
352 }
353 unless ($pass) {
354 # It seems Irix long doubles can have 2147483648 and 2147483648
93f09d7b 355 # that stringify to the same thing but are actually numerically
58d76dfd
JH
356 # different. Display the numbers if $type isn't a string operator,
357 # and the numbers are stringwise the same.
358 # (all string operators have alphabetic names, so tr/a-z// is true)
93f09d7b
PAR
359 # This will also show numbers for some unneeded cases, but will
360 # definitely be helpful for things such as == and <= that fail
58d76dfd
JH
361 if ($got eq $expected and $type !~ tr/a-z//) {
362 unshift @mess, "# $got - $expected = " . ($got - $expected) . "\n";
363 }
d5f8084a
KW
364 unshift(@mess, "# got "._qq($got)."\n",
365 "# expected $type "._qq($expected)."\n");
58d76dfd
JH
366 }
367 _ok($pass, _where(), $name, @mess);
368}
369
370# Check that $got is within $range of $expected
371# if $range is 0, then check it's exact
372# else if $expected is 0, then $range is an absolute value
373# otherwise $range is a fractional error.
374# Here $range must be numeric, >= 0
375# Non numeric ranges might be a useful future extension. (eg %)
c3029c66 376sub within ($$$@) {
58d76dfd
JH
377 my ($got, $expected, $range, $name, @mess) = @_;
378 my $pass;
379 if (!defined $got or !defined $expected or !defined $range) {
380 # This is a fail, but doesn't need extra diagnostics
381 } elsif ($got !~ tr/0-9// or $expected !~ tr/0-9// or $range !~ tr/0-9//) {
382 # This is a fail
383 unshift @mess, "# got, expected and range must be numeric\n";
384 } elsif ($range < 0) {
385 # This is also a fail
386 unshift @mess, "# range must not be negative\n";
387 } elsif ($range == 0) {
388 # Within 0 is ==
389 $pass = $got == $expected;
390 } elsif ($expected == 0) {
391 # If expected is 0, treat range as absolute
392 $pass = ($got <= $range) && ($got >= - $range);
393 } else {
394 my $diff = $got - $expected;
395 $pass = abs ($diff / $expected) < $range;
396 }
397 unless ($pass) {
398 if ($got eq $expected) {
399 unshift @mess, "# $got - $expected = " . ($got - $expected) . "\n";
400 }
d5f8084a
KW
401 unshift@mess, "# got "._qq($got)."\n",
402 "# expected "._qq($expected)." (within "._qq($range).")\n";
58d76dfd
JH
403 }
404 _ok($pass, _where(), $name, @mess);
405}
406
69026470 407# Note: this isn't quite as fancy as Test::More::like().
724aa791
JC
408
409sub like ($$@) { like_yn (0,@_) }; # 0 for -
410sub unlike ($$@) { like_yn (1,@_) }; # 1 for un-
411
412sub like_yn ($$$@) {
0973e8e6 413 my ($flip, undef, $expected, $name, @mess) = @_;
69026470 414 my $pass;
0973e8e6
NC
415 $pass = $_[1] =~ /$expected/ if !$flip;
416 $pass = $_[1] !~ /$expected/ if $flip;
724aa791 417 unless ($pass) {
0973e8e6 418 unshift(@mess, "# got '$_[1]'\n",
5a4a8c8b
NC
419 $flip
420 ? "# expected !~ /$expected/\n" : "# expected /$expected/\n");
69026470 421 }
5693d826 422 local $Level = $Level + 1;
7d932aad 423 _ok($pass, _where(), $name, @mess);
69026470
JH
424}
425
426sub pass {
427 _ok(1, '', @_);
428}
429
430sub fail {
431 _ok(0, _where(), @_);
432}
433
ad20d923 434sub curr_test {
cf8feb78 435 $test = shift if @_;
ad20d923
MS
436 return $test;
437}
438
3e90d5a3 439sub next_test {
178eff92 440 my $retval = $test;
485f531e 441 $test = $test + 1; # don't use ++
178eff92 442 $retval;
3e90d5a3
MS
443}
444
69026470
JH
445# Note: can't pass multipart messages since we try to
446# be compatible with Test::More::skip().
447sub skip {
7d932aad 448 my $why = shift;
982b7cb7 449 my $n = @_ ? shift : 1;
69026470 450 for (1..$n) {
7bb7fa38 451 _print "ok $test # skip $why\n";
485f531e 452 $test = $test + 1;
69026470
JH
453 }
454 local $^W = 0;
455 last SKIP;
456}
457
8c49cd2e 458sub skip_if_miniperl {
445876fa 459 skip(@_) if is_miniperl();
8c49cd2e
NC
460}
461
f12ade25
FC
462sub skip_without_dynamic_extension {
463 my ($extension) = @_;
464 skip("no dynamic loading on miniperl, no $extension") if is_miniperl();
465 return if &_have_dynamic_extension;
688af3a7 466 skip("$extension was not built");
f12ade25
FC
467}
468
09f04786
MS
469sub todo_skip {
470 my $why = shift;
471 my $n = @_ ? shift : 1;
472
473 for (1..$n) {
7bb7fa38 474 _print "not ok $test # TODO & SKIP $why\n";
485f531e 475 $test = $test + 1;
09f04786
MS
476 }
477 local $^W = 0;
478 last TODO;
479}
480
69026470
JH
481sub eq_array {
482 my ($ra, $rb) = @_;
483 return 0 unless $#$ra == $#$rb;
484 for my $i (0..$#$ra) {
8210c8d3 485 next if !defined $ra->[$i] && !defined $rb->[$i];
135d199b
DM
486 return 0 if !defined $ra->[$i];
487 return 0 if !defined $rb->[$i];
69026470
JH
488 return 0 unless $ra->[$i] eq $rb->[$i];
489 }
490 return 1;
491}
492
677fb045
NC
493sub eq_hash {
494 my ($orig, $suspect) = @_;
495 my $fail;
496 while (my ($key, $value) = each %$suspect) {
497 # Force a hash recompute if this perl's internals can cache the hash key.
498 $key = "" . $key;
499 if (exists $orig->{$key}) {
fb75be7e
HS
500 if (
501 defined $orig->{$key} != defined $value
502 || (defined $value && $orig->{$key} ne $value)
503 ) {
3d66076a 504 _print "# key ", _qq($key), " was ", _qq($orig->{$key}),
de522f7a 505 " now ", _qq($value), "\n";
677fb045
NC
506 $fail = 1;
507 }
508 } else {
3d66076a 509 _print "# key ", _qq($key), " is ", _qq($value),
75385f53 510 ", not in original.\n";
677fb045
NC
511 $fail = 1;
512 }
513 }
514 foreach (keys %$orig) {
515 # Force a hash recompute if this perl's internals can cache the hash key.
516 $_ = "" . $_;
517 next if (exists $suspect->{$_});
3d66076a 518 _print "# key ", _qq($_), " was ", _qq($orig->{$_}), " now missing.\n";
677fb045
NC
519 $fail = 1;
520 }
521 !$fail;
522}
523
d47bdea7 524# We only provide a subset of the Test::More functionality.
c3029c66 525sub require_ok ($) {
69026470 526 my ($require) = @_;
d47bdea7
NC
527 if ($require =~ tr/[A-Za-z0-9:.]//c) {
528 fail("Invalid character in \"$require\", passed to require_ok");
529 } else {
530 eval <<REQUIRE_OK;
69026470
JH
531require $require;
532REQUIRE_OK
d47bdea7
NC
533 is($@, '', _where(), "require $require");
534 }
69026470
JH
535}
536
c3029c66 537sub use_ok ($) {
69026470 538 my ($use) = @_;
d47bdea7
NC
539 if ($use =~ tr/[A-Za-z0-9:.]//c) {
540 fail("Invalid character in \"$use\", passed to use");
541 } else {
542 eval <<USE_OK;
69026470
JH
543use $use;
544USE_OK
d47bdea7
NC
545 is($@, '', _where(), "use $use");
546 }
69026470
JH
547}
548
137352a2
RGS
549# runperl - Runs a separate perl interpreter.
550# Arguments :
551# switches => [ command-line switches ]
552# nolib => 1 # don't use -I../lib (included by default)
3d7a9343 553# non_portable => Don't warn if a one liner contains quotes
137352a2 554# prog => one-liner (avoid quotes)
d83945bc 555# progs => [ multi-liner (avoid quotes) ]
137352a2 556# progfile => perl script
53f2736e 557# stdin => string to feed the stdin (or undef to redirect from /dev/null)
137352a2
RGS
558# stderr => redirect stderr to stdout
559# args => [ command-line arguments to the perl program ]
cb9c5e20 560# verbose => print the command line
137352a2
RGS
561
562my $is_mswin = $^O eq 'MSWin32';
563my $is_netware = $^O eq 'NetWare';
137352a2 564my $is_vms = $^O eq 'VMS';
e67ed694 565my $is_cygwin = $^O eq 'cygwin';
137352a2 566
cb9c5e20
JH
567sub _quote_args {
568 my ($runperl, $args) = @_;
569
570 foreach (@$args) {
571 # In VMS protect with doublequotes because otherwise
572 # DCL will lowercase -- unless already doublequoted.
ea9ac5ad 573 $_ = q(").$_.q(") if $is_vms && !/^\"/ && length($_) > 0;
1cce9906 574 $runperl = $runperl . ' ' . $_;
cb9c5e20 575 }
1cce9906 576 return $runperl;
cb9c5e20
JH
577}
578
4cd2bd1f 579sub _create_runperl { # Create the string to qx in runperl().
137352a2 580 my %args = @_;
5fe9b82b
JH
581 my $runperl = which_perl();
582 if ($runperl =~ m/\s/) {
583 $runperl = qq{"$runperl"};
584 }
6cf707aa
RGS
585 #- this allows, for example, to set PERL_RUNPERL_DEBUG=/usr/bin/valgrind
586 if ($ENV{PERL_RUNPERL_DEBUG}) {
587 $runperl = "$ENV{PERL_RUNPERL_DEBUG} $runperl";
588 }
f93a5f07 589 unless ($args{nolib}) {
11ea18f2 590 $runperl = $runperl . ' "-I../lib"'; # doublequotes because of VMS
137352a2 591 }
d83945bc 592 if ($args{switches}) {
343d4a7b
JH
593 local $Level = 2;
594 die "test.pl:runperl(): 'switches' must be an ARRAYREF " . _where()
595 unless ref $args{switches} eq "ARRAY";
1cce9906 596 $runperl = _quote_args($runperl, $args{switches});
d83945bc 597 }
137352a2 598 if (defined $args{prog}) {
21820af6
JH
599 die "test.pl:runperl(): both 'prog' and 'progs' cannot be used " . _where()
600 if defined $args{progs};
d83945bc
A
601 $args{progs} = [$args{prog}]
602 }
603 if (defined $args{progs}) {
21820af6
JH
604 die "test.pl:runperl(): 'progs' must be an ARRAYREF " . _where()
605 unless ref $args{progs} eq "ARRAY";
d83945bc 606 foreach my $prog (@{$args{progs}}) {
3d7a9343
NC
607 if ($prog =~ tr/'"// && !$args{non_portable}) {
608 warn "quotes in prog >>$prog<< are not portable";
609 }
d83945bc 610 if ($is_mswin || $is_netware || $is_vms) {
11ea18f2 611 $runperl = $runperl . qq ( -e "$prog" );
d83945bc
A
612 }
613 else {
11ea18f2 614 $runperl = $runperl . qq ( -e '$prog' );
d83945bc
A
615 }
616 }
137352a2 617 } elsif (defined $args{progfile}) {
11ea18f2 618 $runperl = $runperl . qq( "$args{progfile}");
9a731dbd 619 } else {
93f09d7b 620 # You probably didn't want to be sucking in from the upstream stdin
9a731dbd
NC
621 die "test.pl:runperl(): none of prog, progs, progfile, args, "
622 . " switches or stdin specified"
623 unless defined $args{args} or defined $args{switches}
624 or defined $args{stdin};
137352a2
RGS
625 }
626 if (defined $args{stdin}) {
dc459aad
JH
627 # so we don't try to put literal newlines and crs onto the
628 # command line.
629 $args{stdin} =~ s/\n/\\n/g;
630 $args{stdin} =~ s/\r/\\r/g;
5ae09a77 631
137352a2 632 if ($is_mswin || $is_netware || $is_vms) {
5fe9b82b 633 $runperl = qq{$Perl -e "print qq(} .
137352a2
RGS
634 $args{stdin} . q{)" | } . $runperl;
635 }
636 else {
5fe9b82b 637 $runperl = qq{$Perl -e 'print qq(} .
137352a2
RGS
638 $args{stdin} . q{)' | } . $runperl;
639 }
53f2736e
NC
640 } elsif (exists $args{stdin}) {
641 # Using the pipe construction above can cause fun on systems which use
642 # ksh as /bin/sh, as ksh does pipes differently (with one less process)
643 # With sh, for the command line 'perl -e 'print qq()' | perl -e ...'
644 # the sh process forks two children, which use exec to start the two
645 # perl processes. The parent shell process persists for the duration of
646 # the pipeline, and the second perl process starts with no children.
647 # With ksh (and zsh), the shell saves a process by forking a child for
648 # just the first perl process, and execing itself to start the second.
649 # This means that the second perl process starts with one child which
650 # it didn't create. This causes "fun" when if the tests assume that
651 # wait (or waitpid) will only return information about processes
652 # started within the test.
653 # They also cause fun on VMS, where the pipe implementation returns
654 # the exit code of the process at the front of the pipeline, not the
655 # end. This messes up any test using OPTION FATAL.
656 # Hence it's useful to have a way to make STDIN be at eof without
657 # needing a pipeline, so that the fork tests have a sane environment
658 # without these surprises.
659
660 # /dev/null appears to be surprisingly portable.
661 $runperl = $runperl . ($is_mswin ? ' <nul' : ' </dev/null');
137352a2
RGS
662 }
663 if (defined $args{args}) {
1cce9906 664 $runperl = _quote_args($runperl, $args{args});
cb9c5e20 665 }
11ea18f2 666 $runperl = $runperl . ' 2>&1' if $args{stderr};
cb9c5e20
JH
667 if ($args{verbose}) {
668 my $runperldisplay = $runperl;
669 $runperldisplay =~ s/\n/\n\#/g;
3d66076a 670 _print_stderr "# $runperldisplay\n";
137352a2 671 }
4cd2bd1f
JH
672 return $runperl;
673}
674
675sub runperl {
9a731dbd
NC
676 die "test.pl:runperl() does not take a hashref"
677 if ref $_[0] and ref $_[0] eq 'HASH';
4cd2bd1f 678 my $runperl = &_create_runperl;
613de57f
NC
679 my $result;
680
8210c8d3
MB
681 my $tainted = ${^TAINT};
682 my %args = @_;
485f531e 683 exists $args{switches} && grep m/^-T$/, @{$args{switches}} and $tainted = $tainted + 1;
8210c8d3
MB
684
685 if ($tainted) {
613de57f
NC
686 # We will assume that if you're running under -T, you really mean to
687 # run a fresh perl, so we'll brute force launder everything for you
688 my $sep;
689
cb01154c 690 if (! eval {require Config; 1}) {
613de57f
NC
691 warn "test.pl had problems loading Config: $@";
692 $sep = ':';
693 } else {
afe79e7b 694 $sep = $Config::Config{path_sep};
a70a1627 695 }
613de57f
NC
696
697 my @keys = grep {exists $ENV{$_}} qw(CDPATH IFS ENV BASH_ENV);
698 local @ENV{@keys} = ();
699 # Untaint, plus take out . and empty string:
02bb3106 700 local $ENV{'DCL$PATH'} = $1 if $is_vms && exists($ENV{'DCL$PATH'}) && ($ENV{'DCL$PATH'} =~ /(.*)/s);
613de57f 701 $ENV{PATH} =~ /(.*)/s;
8210c8d3 702 local $ENV{PATH} =
3b6d8381 703 join $sep, grep { $_ ne "" and $_ ne "." and -d $_ and
326b5008 704 ($is_mswin or $is_vms or !(stat && (stat _)[2]&0022)) }
8210c8d3 705 split quotemeta ($sep), $1;
59aae9bd
JH
706 if ($is_cygwin) { # Must have /bin under Cygwin
707 if (length $ENV{PATH}) {
708 $ENV{PATH} = $ENV{PATH} . $sep;
709 }
710 $ENV{PATH} = $ENV{PATH} . '/bin';
711 }
613de57f
NC
712 $runperl =~ /(.*)/s;
713 $runperl = $1;
714
715 $result = `$runperl`;
716 } else {
717 $result = `$runperl`;
a70a1627 718 }
137352a2
RGS
719 $result =~ s/\n\n/\n/ if $is_vms; # XXX pipes sometimes double these
720 return $result;
721}
722
140f5369
MS
723# Nice alias
724*run_perl = *run_perl = \&runperl; # shut up "used only once" warning
8799135f 725
c4fbe247 726sub DIE {
3d66076a 727 _print_stderr "# @_\n";
c4fbe247 728 exit 1;
8799135f
MS
729}
730
b5fe401b 731# A somewhat safer version of the sometimes wrong $^X.
17a740d5
JH
732sub which_perl {
733 unless (defined $Perl) {
734 $Perl = $^X;
8210c8d3 735
73421c4a 736 # VMS should have 'perl' aliased properly
4b0f0df6 737 return $Perl if $is_vms;
73421c4a 738
17a740d5 739 my $exe;
cb01154c 740 if (! eval {require Config; 1}) {
17a740d5
JH
741 warn "test.pl had problems loading Config: $@";
742 $exe = '';
85363d30 743 } else {
afe79e7b 744 $exe = $Config::Config{_exe};
85363d30 745 }
da405c16 746 $exe = '' unless defined $exe;
8210c8d3 747
17a740d5
JH
748 # This doesn't absolutize the path: beware of future chdirs().
749 # We could do File::Spec->abs2rel() but that does getcwd()s,
750 # which is a bit heavyweight to do here.
8210c8d3 751
17a740d5 752 if ($Perl =~ /^perl\Q$exe\E$/i) {
8db06b02 753 my $perl = "perl$exe";
cb01154c 754 if (! eval {require File::Spec; 1}) {
17a740d5 755 warn "test.pl had problems loading File::Spec: $@";
8db06b02 756 $Perl = "./$perl";
17a740d5 757 } else {
8db06b02 758 $Perl = File::Spec->catfile(File::Spec->curdir(), $perl);
17a740d5
JH
759 }
760 }
196918b0
PG
761
762 # Build up the name of the executable file from the name of
763 # the command.
764
765 if ($Perl !~ /\Q$exe\E$/i) {
11ea18f2 766 $Perl = $Perl . $exe;
196918b0 767 }
c880be78 768
8db06b02 769 warn "which_perl: cannot find $Perl from $^X" unless -f $Perl;
8210c8d3 770
17a740d5
JH
771 # For subcommands to use.
772 $ENV{PERLEXE} = $Perl;
85363d30 773 }
17a740d5 774 return $Perl;
b5fe401b
MS
775}
776
435e7af6 777sub unlink_all {
55b0687d 778 my $count = 0;
435e7af6
NC
779 foreach my $file (@_) {
780 1 while unlink $file;
55b0687d
BG
781 if( -f $file ){
782 _print_stderr "# Couldn't unlink '$file': $!\n";
783 }else{
784 ++$count;
785 }
435e7af6 786 }
55b0687d 787 $count;
435e7af6 788}
eeabcb2d 789
f6e25e60
BG
790# _num_to_alpha - Returns a string of letters representing a positive integer.
791# Arguments :
792# number to convert
2c36667f 793# maximum number of letters
f6e25e60
BG
794
795# returns undef if the number is negative
2c36667f 796# returns undef if the number of letters is greater than the maximum wanted
f6e25e60
BG
797
798# _num_to_alpha( 0) eq 'A';
799# _num_to_alpha( 1) eq 'B';
800# _num_to_alpha(25) eq 'Z';
801# _num_to_alpha(26) eq 'AA';
802# _num_to_alpha(27) eq 'AB';
803
48e9c5d4
BG
804my @letters = qw(A B C D E F G H I J K L M N O P Q R S T U V W X Y Z);
805
f6e25e60
BG
806# Avoid ++ -- ranges split negative numbers
807sub _num_to_alpha{
2c36667f 808 my($num,$max_char) = @_;
f6e25e60
BG
809 return unless $num >= 0;
810 my $alpha = '';
2c36667f
BG
811 my $char_count = 0;
812 $max_char = 0 if $max_char < 0;
813
f6e25e60
BG
814 while( 1 ){
815 $alpha = $letters[ $num % 26 ] . $alpha;
816 $num = int( $num / 26 );
817 last if $num == 0;
818 $num = $num - 1;
2c36667f
BG
819
820 # char limit
821 next unless $max_char;
822 $char_count = $char_count + 1;
823 return if $char_count == $max_char;
f6e25e60
BG
824 }
825 return $alpha;
826}
827
748a4b20
NC
828my %tmpfiles;
829END { unlink_all keys %tmpfiles }
830
831# A regexp that matches the tempfile names
832$::tempfile_regexp = 'tmp\d+[A-Z][A-Z]?';
c1ddc35c 833
7a7e4936 834# Avoid ++, avoid ranges, avoid split //
7b29226f 835my $tempfile_count = 0;
7a7e4936 836sub tempfile {
7b29226f 837 while(1){
7a7e4936 838 my $try = "tmp$$";
7b29226f
BG
839 my $alpha = _num_to_alpha($tempfile_count,2);
840 last unless defined $alpha;
841 $try = $try . $alpha;
842 $tempfile_count = $tempfile_count + 1;
843
748a4b20
NC
844 # Need to note all the file names we allocated, as a second request may
845 # come before the first is created.
7b29226f 846 if (!$tmpfiles{$try} && !-e $try) {
c1ddc35c 847 # We have a winner
11ea18f2 848 $tmpfiles{$try} = 1;
c1ddc35c
NC
849 return $try;
850 }
7b29226f 851 }
9a8c1c8c 852 die "Can't find temporary file name starting \"tmp$$\"";
7a7e4936
NC
853}
854
c1ddc35c 855# This is the temporary file for _fresh_perl
7a7e4936 856my $tmpfile = tempfile();
eeabcb2d 857
f5cda331 858sub _fresh_perl {
55280a0d 859 my($prog, $action, $expect, $runperl_args, $name) = @_;
eeabcb2d 860
11ea18f2
NC
861 # Given the choice of the mis-parsable {}
862 # (we want an anon hash, but a borked lexer might think that it's a block)
863 # or relying on taking a reference to a lexical
864 # (\ might be mis-parsed, and the reference counting on the pad may go
865 # awry)
866 # it feels like the least-worse thing is to assume that auto-vivification
867 # works. At least, this is only going to be a run-time failure, so won't
868 # affect tests using this file but not this function.
c49688b0
MS
869 $runperl_args->{progfile} ||= $tmpfile;
870 $runperl_args->{stderr} = 1 unless exists $runperl_args->{stderr};
eeabcb2d
MS
871
872 open TEST, ">$tmpfile" or die "Cannot open $tmpfile: $!";
0d65d7d5 873 print TEST $prog;
eeabcb2d
MS
874 close TEST or die "Cannot close $tmpfile: $!";
875
876 my $results = runperl(%$runperl_args);
877 my $status = $?;
878
879 # Clean up the results into something a bit more predictable.
50f17f89 880 $results =~ s/\n+$//;
748a4b20
NC
881 $results =~ s/at\s+$::tempfile_regexp\s+line/at - line/g;
882 $results =~ s/of\s+$::tempfile_regexp\s+aborted/of - aborted/g;
eeabcb2d
MS
883
884 # bison says 'parse error' instead of 'syntax error',
885 # various yaccs may or may not capitalize 'syntax'.
886 $results =~ s/^(syntax|parse) error/syntax error/mig;
887
4b0f0df6 888 if ($is_vms) {
eeabcb2d
MS
889 # some tests will trigger VMS messages that won't be expected
890 $results =~ s/\n?%[A-Z]+-[SIWEF]-[A-Z]+,.*//;
891
892 # pipes double these sometimes
893 $results =~ s/\n\n/\n/g;
894 }
895
e2c38acd
JH
896 # Use the first line of the program as a name if none was given
897 unless( $name ) {
898 ($first_line, $name) = $prog =~ /^((.{1,50}).*)/;
11ea18f2 899 $name = $name . '...' if length $first_line > length $name;
e2c38acd 900 }
eeabcb2d 901
55280a0d
NC
902 # Historically this was implemented using a closure, but then that means
903 # that the tests for closures avoid using this code. Given that there
904 # are exactly two callers, doing exactly two things, the simpler approach
905 # feels like a better trade off.
906 my $pass;
907 if ($action eq 'eq') {
908 $pass = is($results, $expect, $name);
909 } elsif ($action eq '=~') {
910 $pass = like($results, $expect, $name);
911 } else {
912 die "_fresh_perl can't process action '$action'";
913 }
914
915 unless ($pass) {
916 _diag "# PROG: \n$prog\n";
917 _diag "# STATUS: $status\n";
918 }
919
920 return $pass;
f5cda331
JH
921}
922
923#
141f445b 924# fresh_perl_is
f5cda331
JH
925#
926# Combination of run_perl() and is().
927#
928
929sub fresh_perl_is {
930 my($prog, $expected, $runperl_args, $name) = @_;
50f17f89
MS
931
932 # _fresh_perl() is going to clip the trailing newlines off the result.
933 # This will make it so the test author doesn't have to know that.
934 $expected =~ s/\n+$//;
935
dcc7f481 936 local $Level = 2;
55280a0d 937 _fresh_perl($prog, 'eq', $expected, $runperl_args, $name);
f5cda331
JH
938}
939
940#
141f445b 941# fresh_perl_like
f5cda331
JH
942#
943# Combination of run_perl() and like().
944#
945
946sub fresh_perl_like {
947 my($prog, $expected, $runperl_args, $name) = @_;
dcc7f481 948 local $Level = 2;
55280a0d 949 _fresh_perl($prog, '=~', $expected, $runperl_args, $name);
eeabcb2d
MS
950}
951
ebf2da99
NC
952# Many tests use the same format in __DATA__ or external files to specify a
953# sequence of (fresh) tests to run, extra files they may temporarily need, and
954# what the expected output is. So have excatly one copy of the code to run that
a8775356
TC
955#
956# Each program is source code to run followed by an "EXPECT" line, followed
957# by the expected output.
958#
09b6b4fb
FC
959# The code to run may begin with a command line switch such as -w or -0777
960# (alphanumerics only), and may contain (note the '# ' on each):
a8775356
TC
961# # TODO reason for todo
962# # SKIP reason for skip
963# # SKIP ?code to test if this should be skipped
964# # NAME name of the test (as with ok($ok, $name))
965#
966# The expected output may contain:
967# OPTION list of options
968# OPTIONS list of options
a8775356
TC
969#
970# The possible options for OPTION may be:
971# regex - the expected output is a regular expression
972# random - all lines match but in any order
973# fatal - the code will fail fatally (croak, die)
974#
975# If the actual output contains a line "SKIPPED" the test will be
976# skipped.
977#
708e0e1d
KW
978# If the actual output contains a line "PREFIX", any output starting with that
979# line will be ignored when comparing with the expected output
980#
a8775356
TC
981# If the global variable $FATAL is true then OPTION fatal is the
982# default.
ebf2da99 983
9f5237ac
NC
984sub _setup_one_file {
985 my $fh = shift;
41732369
NC
986 # Store the filename as a program that started at line 0.
987 # Real files count lines starting at line 1.
988 my @these = (0, shift);
989 my ($lineno, $current);
990 while (<$fh>) {
991 if ($_ eq "########\n") {
992 if (defined $current) {
993 push @these, $lineno, $current;
994 }
995 undef $current;
996 } else {
997 if (!defined $current) {
998 $lineno = $.;
999 }
1000 $current .= $_;
1001 }
1002 }
1003 if (defined $current) {
1004 push @these, $lineno, $current;
1005 }
1006 ((scalar @these) / 2 - 1, @these);
9f5237ac
NC
1007}
1008
fdb35a63
NC
1009sub setup_multiple_progs {
1010 my ($tests, @prgs);
1011 foreach my $file (@_) {
1012 next if $file =~ /(?:~|\.orig|,v)$/;
1013 next if $file =~ /perlio$/ && !PerlIO::Layer->find('perlio');
1014 next if -d $file;
1015
1016 open my $fh, '<', $file or die "Cannot open $file: $!\n" ;
1017 my $found;
1018 while (<$fh>) {
1019 if (/^__END__/) {
1020 ++$found;
1021 last;
1022 }
1023 }
1024 # This is an internal error, and should never happen. All bar one of
1025 # the files had an __END__ marker to signal the end of their preamble,
1026 # although for some it wasn't technically necessary as they have no
1027 # tests. It might be possible to process files without an __END__ by
1028 # seeking back to the start and treating the whole file as tests, but
1029 # it's simpler and more reliable just to make the rule that all files
1030 # must have __END__ in. This should never fail - a file without an
1031 # __END__ should not have been checked in, because the regression tests
1032 # would not have passed.
1033 die "Could not find '__END__' in $file"
1034 unless $found;
1035
41732369 1036 my ($t, @p) = _setup_one_file($fh, $file);
9f5237ac 1037 $tests += $t;
41732369 1038 push @prgs, @p;
fdb35a63
NC
1039
1040 close $fh
1041 or die "Cannot close $file: $!\n";
1042 }
1043 return ($tests, @prgs);
1044}
1045
ebf2da99 1046sub run_multiple_progs {
5f7e0818
NC
1047 my $up = shift;
1048 my @prgs;
1049 if ($up) {
1050 # The tests in lib run in a temporary subdirectory of t, and always
1051 # pass in a list of "programs" to run
1052 @prgs = @_;
1053 } else {
41732369
NC
1054 # The tests below t run in t and pass in a file handle. In theory we
1055 # can pass (caller)[1] as the second argument to report errors with
1056 # the filename of our caller, as the handle is always DATA. However,
1057 # line numbers in DATA count from the __END__ token, so will be wrong.
1058 # Which is more confusing than not providing line numbers. So, for now,
1059 # don't provide line numbers. No obvious clean solution - one hack
1060 # would be to seek DATA back to the start and read to the __END__ token,
1061 # but that feels almost like we should just open $0 instead.
1062
9f5237ac
NC
1063 # Not going to rely on undef in list assignment.
1064 my $dummy;
1065 ($dummy, @prgs) = _setup_one_file(shift);
5f7e0818
NC
1066 }
1067
ebf2da99
NC
1068 my $tmpfile = tempfile();
1069
41732369 1070 my ($file, $line);
c0044231 1071 PROGRAM:
41732369
NC
1072 while (defined ($line = shift @prgs)) {
1073 $_ = shift @prgs;
1074 unless ($line) {
1075 $file = $_;
1076 if (defined $file) {
1077 print "# From $file\n";
1078 }
ebf2da99
NC
1079 next;
1080 }
1081 my $switch = "";
1082 my @temps ;
1083 my @temp_path;
1084 if (s/^(\s*-\w+)//) {
1085 $switch = $1;
1086 }
1087 my ($prog, $expected) = split(/\nEXPECT(?:\n|$)/, $_, 2);
1088
1089 my %reason;
1090 foreach my $what (qw(skip todo)) {
1091 $prog =~ s/^#\s*\U$what\E\s*(.*)\n//m and $reason{$what} = $1;
1092 # If the SKIP reason starts ? then it's taken as a code snippet to
1093 # evaluate. This provides the flexibility to have conditional SKIPs
1094 if ($reason{$what} && $reason{$what} =~ s/^\?//) {
1095 my $temp = eval $reason{$what};
1096 if ($@) {
1097 die "# In \U$what\E code reason:\n# $reason{$what}\n$@";
1098 }
1099 $reason{$what} = $temp;
1100 }
1101 }
c0044231 1102
59e38755
TC
1103 my $name = '';
1104 if ($prog =~ s/^#\s*NAME\s+(.+)\n//m) {
1105 $name = $1;
1106 }
ebf2da99 1107
c0044231
TC
1108 if ($reason{skip}) {
1109 SKIP:
1110 {
1111 skip($name ? "$name - $reason{skip}" : $reason{skip}, 1);
1112 }
1113 next PROGRAM;
1114 }
1115
ebf2da99 1116 if ($prog =~ /--FILE--/) {
e330f831 1117 my @files = split(/\n?--FILE--\s*([^\s\n]*)\s*\n/, $prog) ;
ebf2da99
NC
1118 shift @files ;
1119 die "Internal error: test $_ didn't split into pairs, got " .
1120 scalar(@files) . "[" . join("%%%%", @files) ."]\n"
1121 if @files % 2;
1122 while (@files > 2) {
1123 my $filename = shift @files;
1124 my $code = shift @files;
1125 push @temps, $filename;
1126 if ($filename =~ m#(.*)/# && $filename !~ m#^\.\./#) {
1127 require File::Path;
1128 File::Path::mkpath($1);
1129 push(@temp_path, $1);
1130 }
1131 open my $fh, '>', $filename or die "Cannot open $filename: $!\n";
1132 print $fh $code;
1133 close $fh or die "Cannot close $filename: $!\n";
1134 }
1135 shift @files;
1136 $prog = shift @files;
1137 }
1138
1139 open my $fh, '>', $tmpfile or die "Cannot open >$tmpfile: $!";
1140 print $fh q{
1141 BEGIN {
1142 open STDERR, '>&', STDOUT
1143 or die "Can't dup STDOUT->STDERR: $!;";
1144 }
1145 };
1146 print $fh "\n#line 1\n"; # So the line numbers don't get messed up.
1147 print $fh $prog,"\n";
1148 close $fh or die "Cannot close $tmpfile: $!";
684b0eca 1149 my $results = runperl( stderr => 1, progfile => $tmpfile,
53f2736e 1150 stdin => undef, $up
5f7e0818
NC
1151 ? (switches => ["-I$up/lib", $switch], nolib => 1)
1152 : (switches => [$switch])
1153 );
ebf2da99
NC
1154 my $status = $?;
1155 $results =~ s/\n+$//;
1156 # allow expected output to be written as if $prog is on STDIN
1157 $results =~ s/$::tempfile_regexp/-/g;
1158 if ($^O eq 'VMS') {
1159 # some tests will trigger VMS messages that won't be expected
1160 $results =~ s/\n?%[A-Z]+-[SIWEF]-[A-Z]+,.*//;
1161
1162 # pipes double these sometimes
1163 $results =~ s/\n\n/\n/g;
1164 }
1165 # bison says 'parse error' instead of 'syntax error',
1166 # various yaccs may or may not capitalize 'syntax'.
1167 $results =~ s/^(syntax|parse) error/syntax error/mig;
1168 # allow all tests to run when there are leaks
1169 $results =~ s/Scalars leaked: \d+\n//g;
1170
1171 $expected =~ s/\n+$//;
1172 my $prefix = ($results =~ s#^PREFIX(\n|$)##) ;
1173 # any special options? (OPTIONS foo bar zap)
1174 my $option_regex = 0;
1175 my $option_random = 0;
59e38755 1176 my $fatal = $FATAL;
ebf2da99
NC
1177 if ($expected =~ s/^OPTIONS? (.+)\n//) {
1178 foreach my $option (split(' ', $1)) {
1179 if ($option eq 'regex') { # allow regular expressions
1180 $option_regex = 1;
1181 }
1182 elsif ($option eq 'random') { # all lines match, but in any order
1183 $option_random = 1;
1184 }
59e38755
TC
1185 elsif ($option eq 'fatal') { # perl should fail
1186 $fatal = 1;
1187 }
ebf2da99
NC
1188 else {
1189 die "$0: Unknown OPTION '$option'\n";
1190 }
1191 }
1192 }
1193 die "$0: can't have OPTION regex and random\n"
1194 if $option_regex + $option_random > 1;
1195 my $ok = 0;
1196 if ($results =~ s/^SKIPPED\n//) {
1197 print "$results\n" ;
1198 $ok = 1;
1199 }
ebf2da99 1200 else {
59e38755
TC
1201 if ($option_random) {
1202 my @got = sort split "\n", $results;
1203 my @expected = sort split "\n", $expected;
1204
1205 $ok = "@got" eq "@expected";
1206 }
1207 elsif ($option_regex) {
1208 $ok = $results =~ /^$expected/;
1209 }
1210 elsif ($prefix) {
1211 $ok = $results =~ /^\Q$expected/;
1212 }
1213 else {
1214 $ok = $results eq $expected;
1215 }
1216
1217 if ($ok && $fatal && !($status >> 8)) {
1218 $ok = 0;
1219 }
ebf2da99
NC
1220 }
1221
1222 local $::TODO = $reason{todo};
1223
1224 unless ($ok) {
1225 my $err_line = "PROG: $switch\n$prog\n" .
59e38755
TC
1226 "EXPECTED:\n$expected\n";
1227 $err_line .= "EXIT STATUS: != 0\n" if $fatal;
1228 $err_line .= "GOT:\n$results\n";
1229 $err_line .= "EXIT STATUS: " . ($status >> 8) . "\n" if $fatal;
ebf2da99
NC
1230 if ($::TODO) {
1231 $err_line =~ s/^/# /mg;
1232 print $err_line; # Harness can't filter it out from STDERR.
1233 }
1234 else {
1235 print STDERR $err_line;
1236 }
1237 }
1238
41732369
NC
1239 if (defined $file) {
1240 _ok($ok, "at $file line $line", $name);
1241 } else {
1242 # We don't have file and line number data for the test, so report
1243 # errors as coming from our caller.
1244 local $Level = $Level + 1;
1245 ok($ok, $name);
1246 }
ebf2da99
NC
1247
1248 foreach (@temps) {
1249 unlink $_ if $_;
1250 }
1251 foreach (@temp_path) {
1252 File::Path::rmtree $_ if -d $_;
1253 }
1254 }
1255}
1256
35a60386
RGS
1257sub can_ok ($@) {
1258 my($proto, @methods) = @_;
1259 my $class = ref $proto || $proto;
1260
1261 unless( @methods ) {
1262 return _ok( 0, _where(), "$class->can(...)" );
1263 }
1264
1265 my @nok = ();
1266 foreach my $method (@methods) {
1267 local($!, $@); # don't interfere with caller's $@
1268 # eval sometimes resets $!
1269 eval { $proto->can($method) } || push @nok, $method;
1270 }
1271
1272 my $name;
8210c8d3 1273 $name = @methods == 1 ? "$class->can('$methods[0]')"
35a60386 1274 : "$class->can(...)";
8210c8d3 1275
35a60386
RGS
1276 _ok( !@nok, _where(), $name );
1277}
1278
ad4e703e 1279
bbce3ca6 1280# Call $class->new( @$args ); and run the result through object_ok.
ad4e703e
MS
1281# See Test::More::new_ok
1282sub new_ok {
1283 my($class, $args, $obj_name) = @_;
1284 $args ||= [];
1285 $object_name = "The object" unless defined $obj_name;
1286
1287 local $Level = $Level + 1;
1288
1289 my $obj;
1290 my $ok = eval { $obj = $class->new(@$args); 1 };
1291 my $error = $@;
1292
1293 if($ok) {
bbce3ca6 1294 object_ok($obj, $class, $object_name);
ad4e703e
MS
1295 }
1296 else {
1297 ok( 0, "new() died" );
1298 diag("Error was: $@");
1299 }
1300
1301 return $obj;
1302
1303}
1304
1305
35a60386
RGS
1306sub isa_ok ($$;$) {
1307 my($object, $class, $obj_name) = @_;
1308
1309 my $diag;
1310 $obj_name = 'The object' unless defined $obj_name;
1311 my $name = "$obj_name isa $class";
1312 if( !defined $object ) {
1313 $diag = "$obj_name isn't defined";
1314 }
35a60386 1315 else {
b8ab4b0c
MS
1316 my $whatami = ref $object ? 'object' : 'class';
1317
35a60386
RGS
1318 # We can't use UNIVERSAL::isa because we want to honor isa() overrides
1319 local($@, $!); # eval sometimes resets $!
1320 my $rslt = eval { $object->isa($class) };
b8ab4b0c
MS
1321 my $error = $@; # in case something else blows away $@
1322
1323 if( $error ) {
1324 if( $error =~ /^Can't call method "isa" on unblessed reference/ ) {
1325 # It's an unblessed reference
1326 $obj_name = 'The reference' unless defined $obj_name;
35a60386
RGS
1327 if( !UNIVERSAL::isa($object, $class) ) {
1328 my $ref = ref $object;
1329 $diag = "$obj_name isn't a '$class' it's a '$ref'";
1330 }
b8ab4b0c
MS
1331 }
1332 elsif( $error =~ /Can't call method "isa" without a package/ ) {
1333 # It's something that can't even be a class
1334 $obj_name = 'The thing' unless defined $obj_name;
1335 $diag = "$obj_name isn't a class or reference";
1336 }
1337 else {
35a60386
RGS
1338 die <<WHOA;
1339WHOA! I tried to call ->isa on your object and got some weird error.
1340This should never happen. Please contact the author immediately.
1341Here's the error.
1342$@
1343WHOA
1344 }
1345 }
1346 elsif( !$rslt ) {
b8ab4b0c 1347 $obj_name = "The $whatami" unless defined $obj_name;
35a60386
RGS
1348 my $ref = ref $object;
1349 $diag = "$obj_name isn't a '$class' it's a '$ref'";
1350 }
1351 }
1352
1353 _ok( !$diag, _where(), $name );
1354}
1355
bbce3ca6
MS
1356
1357sub class_ok {
1358 my($class, $isa, $class_name) = @_;
1359
1360 # Written so as to count as one test
1361 local $Level = $Level + 1;
1362 if( ref $class ) {
1363 ok( 0, "$class is a refrence, not a class name" );
1364 }
1365 else {
1366 isa_ok($class, $isa, $class_name);
1367 }
1368}
1369
1370
1371sub object_ok {
1372 my($obj, $isa, $obj_name) = @_;
1373
1374 local $Level = $Level + 1;
1375 if( !ref $obj ) {
1376 ok( 0, "$obj is not a reference" );
1377 }
1378 else {
1379 isa_ok($obj, $isa, $obj_name);
1380 }
1381}
1382
1383
9eb41b69
NC
1384# Purposefully avoiding a closure.
1385sub __capture {
1386 push @::__capture, join "", @_;
1387}
1388
3fbaac97
NC
1389sub capture_warnings {
1390 my $code = shift;
1391
9eb41b69
NC
1392 local @::__capture;
1393 local $SIG {__WARN__} = \&__capture;
3fbaac97 1394 &$code;
9eb41b69 1395 return @::__capture;
3fbaac97
NC
1396}
1397
1398# This will generate a variable number of tests.
1399# Use done_testing() instead of a fixed plan.
1400sub warnings_like {
1401 my ($code, $expect, $name) = @_;
f4554ed5
NC
1402 local $Level = $Level + 1;
1403
3fbaac97
NC
1404 my @w = capture_warnings($code);
1405
1406 cmp_ok(scalar @w, '==', scalar @$expect, $name);
1407 foreach my $e (@$expect) {
f4554ed5 1408 if (ref $e) {
3fbaac97 1409 like(shift @w, $e, $name);
4d18b353 1410 } else {
3fbaac97 1411 is(shift @w, $e, $name);
4d18b353 1412 }
96980024 1413 }
3fbaac97
NC
1414 if (@w) {
1415 diag("Saw these additional warnings:");
1416 diag($_) foreach @w;
1417 }
1418}
1419
1420sub _fail_excess_warnings {
1421 my($expect, $got, $name) = @_;
1422 local $Level = $Level + 1;
1423 # This will fail, and produce diagnostics
1424 is($expect, scalar @$got, $name);
1425 diag("Saw these warnings:");
1426 diag($_) foreach @$got;
c11a8df3
NC
1427}
1428
4d18b353
NC
1429sub warning_is {
1430 my ($code, $expect, $name) = @_;
1431 die sprintf "Expect must be a string or undef, not a %s reference", ref $expect
1432 if ref $expect;
f4554ed5 1433 local $Level = $Level + 1;
3fbaac97
NC
1434 my @w = capture_warnings($code);
1435 if (@w > 1) {
1436 _fail_excess_warnings(0 + defined $expect, \@w, $name);
1437 } else {
1438 is($w[0], $expect, $name);
1439 }
4d18b353
NC
1440}
1441
1442sub warning_like {
1443 my ($code, $expect, $name) = @_;
1444 die sprintf "Expect must be a regexp object"
1445 unless ref $expect eq 'Regexp';
f4554ed5 1446 local $Level = $Level + 1;
3fbaac97
NC
1447 my @w = capture_warnings($code);
1448 if (@w > 1) {
1449 _fail_excess_warnings(0 + defined $expect, \@w, $name);
1450 } else {
1451 like($w[0], $expect, $name);
1452 }
4d18b353
NC
1453}
1454
087986a7 1455# Set a watchdog to timeout the entire test file
5fe9b82b
JH
1456# NOTE: If the test file uses 'threads', then call the watchdog() function
1457# _AFTER_ the 'threads' module is loaded.
5732108f 1458sub watchdog ($;$)
087986a7
JH
1459{
1460 my $timeout = shift;
36436324 1461 my $method = shift || "";
087986a7
JH
1462 my $timeout_msg = 'Test process timed out - terminating';
1463
e07ce2e4
GG
1464 # Valgrind slows perl way down so give it more time before dying.
1465 $timeout *= 10 if $ENV{PERL_VALGRIND};
1466
087986a7
JH
1467 my $pid_to_kill = $$; # PID for this process
1468
5732108f
GG
1469 if ($method eq "alarm") {
1470 goto WATCHDOG_VIA_ALARM;
1471 }
1472
140f5369
MS
1473 # shut up use only once warning
1474 my $threads_on = $threads::threads && $threads::threads;
1475
5fe9b82b
JH
1476 # Don't use a watchdog process if 'threads' is loaded -
1477 # use a watchdog thread instead
78325d7a 1478 if (!$threads_on || $method eq "process") {
5fe9b82b
JH
1479
1480 # On Windows and VMS, try launching a watchdog process
1481 # using system(1, ...) (see perlport.pod)
4b0f0df6 1482 if ($is_mswin || $is_vms) {
5fe9b82b 1483 # On Windows, try to get the 'real' PID
4b0f0df6 1484 if ($is_mswin) {
5fe9b82b
JH
1485 eval { require Win32; };
1486 if (defined(&Win32::GetCurrentProcessId)) {
1487 $pid_to_kill = Win32::GetCurrentProcessId();
1488 }
087986a7 1489 }
087986a7 1490
5fe9b82b
JH
1491 # If we still have a fake PID, we can't use this method at all
1492 return if ($pid_to_kill <= 0);
1493
1494 # Launch watchdog process
1495 my $watchdog;
1496 eval {
1497 local $SIG{'__WARN__'} = sub {
1498 _diag("Watchdog warning: $_[0]");
1499 };
4b0f0df6 1500 my $sig = $is_vms ? 'TERM' : 'KILL';
9b7a5066
CB
1501 my $cmd = _create_runperl( prog => "sleep($timeout);" .
1502 "warn qq/# $timeout_msg" . '\n/;' .
c1c45e36 1503 "kill($sig, $pid_to_kill);");
9b7a5066 1504 $watchdog = system(1, $cmd);
5fe9b82b
JH
1505 };
1506 if ($@ || ($watchdog <= 0)) {
1507 _diag('Failed to start watchdog');
1508 _diag($@) if $@;
1509 undef($watchdog);
1510 return;
1511 }
087986a7 1512
5fe9b82b
JH
1513 # Add END block to parent to terminate and
1514 # clean up watchdog process
7e1027b9
JH
1515 eval "END { local \$! = 0; local \$? = 0;
1516 wait() if kill('KILL', $watchdog); };";
5fe9b82b 1517 return;
087986a7 1518 }
087986a7 1519
5fe9b82b
JH
1520 # Try using fork() to generate a watchdog process
1521 my $watchdog;
1522 eval { $watchdog = fork() };
1523 if (defined($watchdog)) {
1524 if ($watchdog) { # Parent process
1525 # Add END block to parent to terminate and
1526 # clean up watchdog process
7e1027b9
JH
1527 eval "END { local \$! = 0; local \$? = 0;
1528 wait() if kill('KILL', $watchdog); };";
5fe9b82b
JH
1529 return;
1530 }
1531
1532 ### Watchdog process code
087986a7 1533
5fe9b82b
JH
1534 # Load POSIX if available
1535 eval { require POSIX; };
087986a7 1536
5fe9b82b
JH
1537 # Execute the timeout
1538 sleep($timeout - 2) if ($timeout > 2); # Workaround for perlbug #49073
1539 sleep(2);
087986a7 1540
5fe9b82b
JH
1541 # Kill test process if still running
1542 if (kill(0, $pid_to_kill)) {
1543 _diag($timeout_msg);
1544 kill('KILL', $pid_to_kill);
1a34b28b
TC
1545 if ($is_cygwin) {
1546 # sometimes the above isn't enough on cygwin
1547 sleep 1; # wait a little, it might have worked after all
1548 system("/bin/kill -f $pid_to_kill");
1549 }
5fe9b82b 1550 }
087986a7 1551
5fe9b82b
JH
1552 # Don't execute END block (added at beginning of this file)
1553 $NO_ENDING = 1;
087986a7 1554
5fe9b82b
JH
1555 # Terminate ourself (i.e., the watchdog)
1556 POSIX::_exit(1) if (defined(&POSIX::_exit));
1557 exit(1);
087986a7
JH
1558 }
1559
5fe9b82b 1560 # fork() failed - fall through and try using a thread
087986a7
JH
1561 }
1562
5fe9b82b
JH
1563 # Use a watchdog thread because either 'threads' is loaded,
1564 # or fork() failed
cb01154c 1565 if (eval {require threads; 1}) {
b296285b 1566 'threads'->create(sub {
087986a7
JH
1567 # Load POSIX if available
1568 eval { require POSIX; };
1569
1570 # Execute the timeout
c1c45e36 1571 my $time_left = $timeout;
a6c9a815 1572 do {
11ea18f2 1573 $time_left = $time_left - sleep($time_left);
a6c9a815 1574 } while ($time_left > 0);
087986a7
JH
1575
1576 # Kill the parent (and ourself)
5fe9b82b 1577 select(STDERR); $| = 1;
087986a7
JH
1578 _diag($timeout_msg);
1579 POSIX::_exit(1) if (defined(&POSIX::_exit));
4b0f0df6 1580 my $sig = $is_vms ? 'TERM' : 'KILL';
c1c45e36 1581 kill($sig, $pid_to_kill);
087986a7
JH
1582 })->detach();
1583 return;
1584 }
1585
5fe9b82b 1586 # If everything above fails, then just use an alarm timeout
5732108f 1587WATCHDOG_VIA_ALARM:
087986a7
JH
1588 if (eval { alarm($timeout); 1; }) {
1589 # Load POSIX if available
1590 eval { require POSIX; };
1591
1592 # Alarm handler will do the actual 'killing'
1593 $SIG{'ALRM'} = sub {
5fe9b82b 1594 select(STDERR); $| = 1;
087986a7
JH
1595 _diag($timeout_msg);
1596 POSIX::_exit(1) if (defined(&POSIX::_exit));
4b0f0df6 1597 my $sig = $is_vms ? 'TERM' : 'KILL';
c1c45e36 1598 kill($sig, $pid_to_kill);
087986a7
JH
1599 };
1600 }
1601}
1602
f69d9fdf
KW
1603my $cp_0037 = # EBCDIC code page 0037
1604 '\x00\x01\x02\x03\x37\x2D\x2E\x2F\x16\x05\x25\x0B\x0C\x0D\x0E\x0F' .
1605 '\x10\x11\x12\x13\x3C\x3D\x32\x26\x18\x19\x3F\x27\x1C\x1D\x1E\x1F' .
1606 '\x40\x5A\x7F\x7B\x5B\x6C\x50\x7D\x4D\x5D\x5C\x4E\x6B\x60\x4B\x61' .
1607 '\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\x7A\x5E\x4C\x7E\x6E\x6F' .
1608 '\x7C\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xD1\xD2\xD3\xD4\xD5\xD6' .
1609 '\xD7\xD8\xD9\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xBA\xE0\xBB\xB0\x6D' .
1610 '\x79\x81\x82\x83\x84\x85\x86\x87\x88\x89\x91\x92\x93\x94\x95\x96' .
1611 '\x97\x98\x99\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xC0\x4F\xD0\xA1\x07' .
1612 '\x20\x21\x22\x23\x24\x15\x06\x17\x28\x29\x2A\x2B\x2C\x09\x0A\x1B' .
1613 '\x30\x31\x1A\x33\x34\x35\x36\x08\x38\x39\x3A\x3B\x04\x14\x3E\xFF' .
1614 '\x41\xAA\x4A\xB1\x9F\xB2\x6A\xB5\xBD\xB4\x9A\x8A\x5F\xCA\xAF\xBC' .
1615 '\x90\x8F\xEA\xFA\xBE\xA0\xB6\xB3\x9D\xDA\x9B\x8B\xB7\xB8\xB9\xAB' .
1616 '\x64\x65\x62\x66\x63\x67\x9E\x68\x74\x71\x72\x73\x78\x75\x76\x77' .
1617 '\xAC\x69\xED\xEE\xEB\xEF\xEC\xBF\x80\xFD\xFE\xFB\xFC\xAD\xAE\x59' .
1618 '\x44\x45\x42\x46\x43\x47\x9C\x48\x54\x51\x52\x53\x58\x55\x56\x57' .
1619 '\x8C\x49\xCD\xCE\xCB\xCF\xCC\xE1\x70\xDD\xDE\xDB\xDC\x8D\x8E\xDF';
1620
1621my $cp_1047 = # EBCDIC code page 1047
1622 '\x00\x01\x02\x03\x37\x2D\x2E\x2F\x16\x05\x15\x0B\x0C\x0D\x0E\x0F' .
1623 '\x10\x11\x12\x13\x3C\x3D\x32\x26\x18\x19\x3F\x27\x1C\x1D\x1E\x1F' .
1624 '\x40\x5A\x7F\x7B\x5B\x6C\x50\x7D\x4D\x5D\x5C\x4E\x6B\x60\x4B\x61' .
1625 '\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\x7A\x5E\x4C\x7E\x6E\x6F' .
1626 '\x7C\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xD1\xD2\xD3\xD4\xD5\xD6' .
1627 '\xD7\xD8\xD9\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xAD\xE0\xBD\x5F\x6D' .
1628 '\x79\x81\x82\x83\x84\x85\x86\x87\x88\x89\x91\x92\x93\x94\x95\x96' .
1629 '\x97\x98\x99\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xC0\x4F\xD0\xA1\x07' .
1630 '\x20\x21\x22\x23\x24\x25\x06\x17\x28\x29\x2A\x2B\x2C\x09\x0A\x1B' .
1631 '\x30\x31\x1A\x33\x34\x35\x36\x08\x38\x39\x3A\x3B\x04\x14\x3E\xFF' .
1632 '\x41\xAA\x4A\xB1\x9F\xB2\x6A\xB5\xBB\xB4\x9A\x8A\xB0\xCA\xAF\xBC' .
1633 '\x90\x8F\xEA\xFA\xBE\xA0\xB6\xB3\x9D\xDA\x9B\x8B\xB7\xB8\xB9\xAB' .
1634 '\x64\x65\x62\x66\x63\x67\x9E\x68\x74\x71\x72\x73\x78\x75\x76\x77' .
1635 '\xAC\x69\xED\xEE\xEB\xEF\xEC\xBF\x80\xFD\xFE\xFB\xFC\xBA\xAE\x59' .
1636 '\x44\x45\x42\x46\x43\x47\x9C\x48\x54\x51\x52\x53\x58\x55\x56\x57' .
1637 '\x8C\x49\xCD\xCE\xCB\xCF\xCC\xE1\x70\xDD\xDE\xDB\xDC\x8D\x8E\xDF';
1638
1639my $cp_bc = # EBCDIC code page POSiX-BC
1640 '\x00\x01\x02\x03\x37\x2D\x2E\x2F\x16\x05\x15\x0B\x0C\x0D\x0E\x0F' .
1641 '\x10\x11\x12\x13\x3C\x3D\x32\x26\x18\x19\x3F\x27\x1C\x1D\x1E\x1F' .
1642 '\x40\x5A\x7F\x7B\x5B\x6C\x50\x7D\x4D\x5D\x5C\x4E\x6B\x60\x4B\x61' .
1643 '\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\x7A\x5E\x4C\x7E\x6E\x6F' .
1644 '\x7C\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xD1\xD2\xD3\xD4\xD5\xD6' .
1645 '\xD7\xD8\xD9\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xBB\xBC\xBD\x6A\x6D' .
1646 '\x4A\x81\x82\x83\x84\x85\x86\x87\x88\x89\x91\x92\x93\x94\x95\x96' .
1647 '\x97\x98\x99\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xFB\x4F\xFD\xFF\x07' .
1648 '\x20\x21\x22\x23\x24\x25\x06\x17\x28\x29\x2A\x2B\x2C\x09\x0A\x1B' .
1649 '\x30\x31\x1A\x33\x34\x35\x36\x08\x38\x39\x3A\x3B\x04\x14\x3E\x5F' .
1650 '\x41\xAA\xB0\xB1\x9F\xB2\xD0\xB5\x79\xB4\x9A\x8A\xBA\xCA\xAF\xA1' .
1651 '\x90\x8F\xEA\xFA\xBE\xA0\xB6\xB3\x9D\xDA\x9B\x8B\xB7\xB8\xB9\xAB' .
1652 '\x64\x65\x62\x66\x63\x67\x9E\x68\x74\x71\x72\x73\x78\x75\x76\x77' .
1653 '\xAC\x69\xED\xEE\xEB\xEF\xEC\xBF\x80\xE0\xFE\xDD\xFC\xAD\xAE\x59' .
1654 '\x44\x45\x42\x46\x43\x47\x9C\x48\x54\x51\x52\x53\x58\x55\x56\x57' .
1655 '\x8C\x49\xCD\xCE\xCB\xCF\xCC\xE1\x70\xC0\xDE\xDB\xDC\x8D\x8E\xDF';
1656
1657my $straight = # Avoid ranges
1658 '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F' .
1659 '\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F' .
1660 '\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2A\x2B\x2C\x2D\x2E\x2F' .
1661 '\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3A\x3B\x3C\x3D\x3E\x3F' .
1662 '\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4A\x4B\x4C\x4D\x4E\x4F' .
1663 '\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5A\x5B\x5C\x5D\x5E\x5F' .
1664 '\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6A\x6B\x6C\x6D\x6E\x6F' .
1665 '\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7A\x7B\x7C\x7D\x7E\x7F' .
1666 '\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F' .
1667 '\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F' .
1668 '\xA0\xA1\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xAA\xAB\xAC\xAD\xAE\xAF' .
1669 '\xB0\xB1\xB2\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xBB\xBC\xBD\xBE\xBF' .
1670 '\xC0\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xCA\xCB\xCC\xCD\xCE\xCF' .
1671 '\xD0\xD1\xD2\xD3\xD4\xD5\xD6\xD7\xD8\xD9\xDA\xDB\xDC\xDD\xDE\xDF' .
1672 '\xE0\xE1\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xEA\xEB\xEC\xED\xEE\xEF' .
1673 '\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\xFA\xFB\xFC\xFD\xFE\xFF';
1674
1675# The following 2 functions allow tests to work on both EBCDIC and
1676# ASCII-ish platforms. They convert string scalars between the native
1677# character set and the set of 256 characters which is usually called
1678# Latin1.
1679#
1680# These routines don't work on UTF-EBCDIC and UTF-8.
1681
1682sub native_to_latin1($) {
1683 my $string = shift;
1684
1685 return $string if ord('^') == 94; # ASCII, Latin1
1686 my $cp;
1687 if (ord('^') == 95) { # EBCDIC 1047
1688 $cp = \$cp_1047;
1689 }
1690 elsif (ord('^') == 106) { # EBCDIC POSIX-BC
1691 $cp = \$cp_bc;
1692 }
1693 elsif (ord('^') == 176) { # EBCDIC 037 */
1694 $cp = \$cp_0037;
1695 }
1696 else {
1697 die "Unknown native character set";
1698 }
1699
1700 eval '$string =~ tr/' . $$cp . '/' . $straight . '/';
1701 return $string;
1702}
1703
1704sub latin1_to_native($) {
1705 my $string = shift;
1706
1707 return $string if ord('^') == 94; # ASCII, Latin1
1708 my $cp;
1709 if (ord('^') == 95) { # EBCDIC 1047
1710 $cp = \$cp_1047;
1711 }
1712 elsif (ord('^') == 106) { # EBCDIC POSIX-BC
1713 $cp = \$cp_bc;
1714 }
1715 elsif (ord('^') == 176) { # EBCDIC 037 */
1716 $cp = \$cp_0037;
1717 }
1718 else {
1719 die "Unknown native character set";
1720 }
1721
1722 eval '$string =~ tr/' . $straight . '/' . $$cp . '/';
1723 return $string;
1724}
1725
883cce4a 1726sub ord_latin1_to_native {
ec0363d9
KW
1727 # given an input code point, return the platform's native
1728 # equivalent value. Anything above latin1 is itself.
883cce4a 1729
ec0363d9
KW
1730 my $ord = shift;
1731 return $ord if $ord > 255;
1732 return ord latin1_to_native(chr $ord);
883cce4a
KW
1733}
1734
1735sub ord_native_to_latin1 {
ec0363d9
KW
1736 # given an input platform code point, return the latin1 equivalent value.
1737 # Anything above latin1 is itself.
883cce4a 1738
ec0363d9
KW
1739 my $ord = shift;
1740 return $ord if $ord > 255;
1741 return ord native_to_latin1(chr $ord);
883cce4a
KW
1742}
1743
69026470 17441;