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test.pl: Add native to uni ord fcns
[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 $^X set by which_perl()
69026470 26
7d932aad 27$TODO = 0;
b6345914 28$NO_ENDING = 0;
7d932aad 29
3d66076a
MS
30# Use this instead of print to avoid interference while testing globals.
31sub _print {
32 local($\, $", $,) = (undef, ' ', '');
33 print STDOUT @_;
34}
35
36sub _print_stderr {
37 local($\, $", $,) = (undef, ' ', '');
38 print STDERR @_;
39}
40
69026470
JH
41sub plan {
42 my $n;
43 if (@_ == 1) {
44 $n = shift;
6137113d
NC
45 if ($n eq 'no_plan') {
46 undef $n;
47 $noplan = 1;
48 }
69026470
JH
49 } else {
50 my %plan = @_;
8210c8d3 51 $n = $plan{tests};
69026470 52 }
3d66076a 53 _print "1..$n\n" unless $noplan;
69026470
JH
54 $planned = $n;
55}
56
c4ef7183
MS
57
58# Set the plan at the end. See Test::More::done_testing.
59sub done_testing {
60 my $n = $test - 1;
61 $n = shift if @_;
62
63 _print "1..$n\n";
64 $planned = $n;
65}
66
67
69026470
JH
68END {
69 my $ran = $test - 1;
6137113d
NC
70 if (!$NO_ENDING) {
71 if (defined $planned && $planned != $ran) {
3d66076a 72 _print_stderr
6137113d
NC
73 "# Looks like you planned $planned tests but ran $ran.\n";
74 } elsif ($noplan) {
3d66076a 75 _print "1..$ran\n";
6137113d 76 }
69026470
JH
77 }
78}
79
de522f7a 80sub _diag {
cf8feb78 81 return unless @_;
92c9394b 82 my @mess = _comment(@_);
44826442 83 $TODO ? _print(@mess) : _print_stderr(@mess);
de522f7a
MS
84}
85
92c9394b
MS
86# Use this instead of "print STDERR" when outputing failure diagnostic
87# messages
485f531e
DL
88sub diag {
89 _diag(@_);
90}
91
92c9394b
MS
92# Use this instead of "print" when outputing informational messages
93sub note {
94 return unless @_;
95 _print( _comment(@_) );
96}
97
98sub _comment {
99 return map { /^#/ ? "$_\n" : "# $_\n" }
100 map { split /\n/ } @_;
101}
102
69026470
JH
103sub skip_all {
104 if (@_) {
7bb7fa38 105 _print "1..0 # Skip @_\n";
69026470 106 } else {
3d66076a 107 _print "1..0\n";
69026470
JH
108 }
109 exit(0);
110}
111
112sub _ok {
7d932aad 113 my ($pass, $where, $name, @mess) = @_;
69026470
JH
114 # Do not try to microoptimize by factoring out the "not ".
115 # VMS will avenge.
7d932aad
MS
116 my $out;
117 if ($name) {
b734d6c9
MS
118 # escape out '#' or it will interfere with '# skip' and such
119 $name =~ s/#/\\#/g;
7d932aad 120 $out = $pass ? "ok $test - $name" : "not ok $test - $name";
69026470 121 } else {
7d932aad 122 $out = $pass ? "ok $test" : "not ok $test";
69026470 123 }
7d932aad 124
11ea18f2 125 $out = $out . " # TODO $TODO" if $TODO;
3d66076a 126 _print "$out\n";
7d932aad 127
69026470 128 unless ($pass) {
de522f7a 129 _diag "# Failed $where\n";
69026470 130 }
7d932aad
MS
131
132 # Ensure that the message is properly escaped.
cf8feb78 133 _diag @mess;
7d932aad 134
485f531e 135 $test = $test + 1; # don't use ++
1577bb16
MS
136
137 return $pass;
69026470
JH
138}
139
140sub _where {
dcc7f481 141 my @caller = caller($Level);
69026470
JH
142 return "at $caller[1] line $caller[2]";
143}
144
1d662fb6 145# DON'T use this for matches. Use like() instead.
c3029c66 146sub ok ($@) {
7d932aad
MS
147 my ($pass, $name, @mess) = @_;
148 _ok($pass, _where(), $name, @mess);
69026470
JH
149}
150
b3c72391
JH
151sub _q {
152 my $x = shift;
153 return 'undef' unless defined $x;
154 my $q = $x;
d279d8f8
NC
155 $q =~ s/\\/\\\\/g;
156 $q =~ s/'/\\'/g;
b3c72391
JH
157 return "'$q'";
158}
159
677fb045
NC
160sub _qq {
161 my $x = shift;
162 return defined $x ? '"' . display ($x) . '"' : 'undef';
163};
164
165# keys are the codes \n etc map to, values are 2 char strings such as \n
166my %backslash_escape;
167foreach my $x (split //, 'nrtfa\\\'"') {
168 $backslash_escape{ord eval "\"\\$x\""} = "\\$x";
169}
170# A way to display scalars containing control characters and Unicode.
171# Trying to avoid setting $_, or relying on local $_ to work.
172sub display {
173 my @result;
174 foreach my $x (@_) {
175 if (defined $x and not ref $x) {
176 my $y = '';
177 foreach my $c (unpack("U*", $x)) {
178 if ($c > 255) {
11ea18f2 179 $y = $y . sprintf "\\x{%x}", $c;
677fb045 180 } elsif ($backslash_escape{$c}) {
11ea18f2 181 $y = $y . $backslash_escape{$c};
677fb045
NC
182 } else {
183 my $z = chr $c; # Maybe we can get away with a literal...
1cfccccd
KW
184 if ($z =~ /[[:^print:]]/) {
185
186 # Use octal for characters traditionally expressed as
187 # such: the low controls
188 if ($c <= 037) {
189 $z = sprintf "\\%03o", $c;
190 } else {
191 $z = sprintf "\\x{%x}", $c;
192 }
193 }
11ea18f2 194 $y = $y . $z;
677fb045
NC
195 }
196 }
197 $x = $y;
198 }
199 return $x unless wantarray;
200 push @result, $x;
201 }
202 return @result;
203}
204
c3029c66 205sub is ($$@) {
7d932aad 206 my ($got, $expected, $name, @mess) = @_;
c831d34f
MS
207
208 my $pass;
209 if( !defined $got || !defined $expected ) {
210 # undef only matches undef
211 $pass = !defined $got && !defined $expected;
212 }
213 else {
214 $pass = $got eq $expected;
215 }
216
69026470 217 unless ($pass) {
d5f8084a
KW
218 unshift(@mess, "# got "._qq($got)."\n",
219 "# expected "._qq($expected)."\n");
69026470 220 }
7d932aad 221 _ok($pass, _where(), $name, @mess);
69026470
JH
222}
223
c3029c66 224sub isnt ($$@) {
3e90d5a3 225 my ($got, $isnt, $name, @mess) = @_;
c831d34f
MS
226
227 my $pass;
228 if( !defined $got || !defined $isnt ) {
229 # undef only matches undef
230 $pass = defined $got || defined $isnt;
231 }
232 else {
233 $pass = $got ne $isnt;
234 }
235
3e90d5a3 236 unless( $pass ) {
d5f8084a 237 unshift(@mess, "# it should not be "._qq($got)."\n",
3e90d5a3
MS
238 "# but it is.\n");
239 }
240 _ok($pass, _where(), $name, @mess);
241}
242
c3029c66 243sub cmp_ok ($$$@) {
58d76dfd
JH
244 my($got, $type, $expected, $name, @mess) = @_;
245
246 my $pass;
247 {
248 local $^W = 0;
249 local($@,$!); # don't interfere with $@
250 # eval() sometimes resets $!
251 $pass = eval "\$got $type \$expected";
252 }
253 unless ($pass) {
254 # It seems Irix long doubles can have 2147483648 and 2147483648
255 # that stringify to the same thing but are acutally numerically
256 # different. Display the numbers if $type isn't a string operator,
257 # and the numbers are stringwise the same.
258 # (all string operators have alphabetic names, so tr/a-z// is true)
259 # This will also show numbers for some uneeded cases, but will
260 # definately be helpful for things such as == and <= that fail
261 if ($got eq $expected and $type !~ tr/a-z//) {
262 unshift @mess, "# $got - $expected = " . ($got - $expected) . "\n";
263 }
d5f8084a
KW
264 unshift(@mess, "# got "._qq($got)."\n",
265 "# expected $type "._qq($expected)."\n");
58d76dfd
JH
266 }
267 _ok($pass, _where(), $name, @mess);
268}
269
270# Check that $got is within $range of $expected
271# if $range is 0, then check it's exact
272# else if $expected is 0, then $range is an absolute value
273# otherwise $range is a fractional error.
274# Here $range must be numeric, >= 0
275# Non numeric ranges might be a useful future extension. (eg %)
c3029c66 276sub within ($$$@) {
58d76dfd
JH
277 my ($got, $expected, $range, $name, @mess) = @_;
278 my $pass;
279 if (!defined $got or !defined $expected or !defined $range) {
280 # This is a fail, but doesn't need extra diagnostics
281 } elsif ($got !~ tr/0-9// or $expected !~ tr/0-9// or $range !~ tr/0-9//) {
282 # This is a fail
283 unshift @mess, "# got, expected and range must be numeric\n";
284 } elsif ($range < 0) {
285 # This is also a fail
286 unshift @mess, "# range must not be negative\n";
287 } elsif ($range == 0) {
288 # Within 0 is ==
289 $pass = $got == $expected;
290 } elsif ($expected == 0) {
291 # If expected is 0, treat range as absolute
292 $pass = ($got <= $range) && ($got >= - $range);
293 } else {
294 my $diff = $got - $expected;
295 $pass = abs ($diff / $expected) < $range;
296 }
297 unless ($pass) {
298 if ($got eq $expected) {
299 unshift @mess, "# $got - $expected = " . ($got - $expected) . "\n";
300 }
d5f8084a
KW
301 unshift@mess, "# got "._qq($got)."\n",
302 "# expected "._qq($expected)." (within "._qq($range).")\n";
58d76dfd
JH
303 }
304 _ok($pass, _where(), $name, @mess);
305}
306
69026470 307# Note: this isn't quite as fancy as Test::More::like().
724aa791
JC
308
309sub like ($$@) { like_yn (0,@_) }; # 0 for -
310sub unlike ($$@) { like_yn (1,@_) }; # 1 for un-
311
312sub like_yn ($$$@) {
313 my ($flip, $got, $expected, $name, @mess) = @_;
69026470 314 my $pass;
724aa791
JC
315 $pass = $got =~ /$expected/ if !$flip;
316 $pass = $got !~ /$expected/ if $flip;
317 unless ($pass) {
318 unshift(@mess, "# got '$got'\n",
5a4a8c8b
NC
319 $flip
320 ? "# expected !~ /$expected/\n" : "# expected /$expected/\n");
69026470 321 }
5693d826 322 local $Level = $Level + 1;
7d932aad 323 _ok($pass, _where(), $name, @mess);
69026470
JH
324}
325
326sub pass {
327 _ok(1, '', @_);
328}
329
330sub fail {
331 _ok(0, _where(), @_);
332}
333
ad20d923 334sub curr_test {
cf8feb78 335 $test = shift if @_;
ad20d923
MS
336 return $test;
337}
338
3e90d5a3 339sub next_test {
178eff92 340 my $retval = $test;
485f531e 341 $test = $test + 1; # don't use ++
178eff92 342 $retval;
3e90d5a3
MS
343}
344
69026470
JH
345# Note: can't pass multipart messages since we try to
346# be compatible with Test::More::skip().
347sub skip {
7d932aad 348 my $why = shift;
982b7cb7 349 my $n = @_ ? shift : 1;
69026470 350 for (1..$n) {
7bb7fa38 351 _print "ok $test # skip $why\n";
485f531e 352 $test = $test + 1;
69026470
JH
353 }
354 local $^W = 0;
355 last SKIP;
356}
357
09f04786
MS
358sub todo_skip {
359 my $why = shift;
360 my $n = @_ ? shift : 1;
361
362 for (1..$n) {
7bb7fa38 363 _print "not ok $test # TODO & SKIP $why\n";
485f531e 364 $test = $test + 1;
09f04786
MS
365 }
366 local $^W = 0;
367 last TODO;
368}
369
69026470
JH
370sub eq_array {
371 my ($ra, $rb) = @_;
372 return 0 unless $#$ra == $#$rb;
373 for my $i (0..$#$ra) {
8210c8d3 374 next if !defined $ra->[$i] && !defined $rb->[$i];
135d199b
DM
375 return 0 if !defined $ra->[$i];
376 return 0 if !defined $rb->[$i];
69026470
JH
377 return 0 unless $ra->[$i] eq $rb->[$i];
378 }
379 return 1;
380}
381
677fb045
NC
382sub eq_hash {
383 my ($orig, $suspect) = @_;
384 my $fail;
385 while (my ($key, $value) = each %$suspect) {
386 # Force a hash recompute if this perl's internals can cache the hash key.
387 $key = "" . $key;
388 if (exists $orig->{$key}) {
389 if ($orig->{$key} ne $value) {
3d66076a 390 _print "# key ", _qq($key), " was ", _qq($orig->{$key}),
de522f7a 391 " now ", _qq($value), "\n";
677fb045
NC
392 $fail = 1;
393 }
394 } else {
3d66076a 395 _print "# key ", _qq($key), " is ", _qq($value),
75385f53 396 ", not in original.\n";
677fb045
NC
397 $fail = 1;
398 }
399 }
400 foreach (keys %$orig) {
401 # Force a hash recompute if this perl's internals can cache the hash key.
402 $_ = "" . $_;
403 next if (exists $suspect->{$_});
3d66076a 404 _print "# key ", _qq($_), " was ", _qq($orig->{$_}), " now missing.\n";
677fb045
NC
405 $fail = 1;
406 }
407 !$fail;
408}
409
c3029c66 410sub require_ok ($) {
69026470
JH
411 my ($require) = @_;
412 eval <<REQUIRE_OK;
413require $require;
414REQUIRE_OK
1577bb16 415 _ok(!$@, _where(), "require $require");
69026470
JH
416}
417
c3029c66 418sub use_ok ($) {
69026470
JH
419 my ($use) = @_;
420 eval <<USE_OK;
421use $use;
422USE_OK
1577bb16 423 _ok(!$@, _where(), "use $use");
69026470
JH
424}
425
137352a2
RGS
426# runperl - Runs a separate perl interpreter.
427# Arguments :
428# switches => [ command-line switches ]
429# nolib => 1 # don't use -I../lib (included by default)
3d7a9343 430# non_portable => Don't warn if a one liner contains quotes
137352a2 431# prog => one-liner (avoid quotes)
d83945bc 432# progs => [ multi-liner (avoid quotes) ]
137352a2
RGS
433# progfile => perl script
434# stdin => string to feed the stdin
435# stderr => redirect stderr to stdout
436# args => [ command-line arguments to the perl program ]
cb9c5e20 437# verbose => print the command line
137352a2
RGS
438
439my $is_mswin = $^O eq 'MSWin32';
440my $is_netware = $^O eq 'NetWare';
137352a2 441my $is_vms = $^O eq 'VMS';
e67ed694 442my $is_cygwin = $^O eq 'cygwin';
137352a2 443
cb9c5e20
JH
444sub _quote_args {
445 my ($runperl, $args) = @_;
446
447 foreach (@$args) {
448 # In VMS protect with doublequotes because otherwise
449 # DCL will lowercase -- unless already doublequoted.
ea9ac5ad 450 $_ = q(").$_.q(") if $is_vms && !/^\"/ && length($_) > 0;
1cce9906 451 $runperl = $runperl . ' ' . $_;
cb9c5e20 452 }
1cce9906 453 return $runperl;
cb9c5e20
JH
454}
455
4cd2bd1f 456sub _create_runperl { # Create the string to qx in runperl().
137352a2 457 my %args = @_;
5fe9b82b
JH
458 my $runperl = which_perl();
459 if ($runperl =~ m/\s/) {
460 $runperl = qq{"$runperl"};
461 }
6cf707aa
RGS
462 #- this allows, for example, to set PERL_RUNPERL_DEBUG=/usr/bin/valgrind
463 if ($ENV{PERL_RUNPERL_DEBUG}) {
464 $runperl = "$ENV{PERL_RUNPERL_DEBUG} $runperl";
465 }
f93a5f07 466 unless ($args{nolib}) {
11ea18f2 467 $runperl = $runperl . ' "-I../lib"'; # doublequotes because of VMS
137352a2 468 }
d83945bc 469 if ($args{switches}) {
343d4a7b
JH
470 local $Level = 2;
471 die "test.pl:runperl(): 'switches' must be an ARRAYREF " . _where()
472 unless ref $args{switches} eq "ARRAY";
1cce9906 473 $runperl = _quote_args($runperl, $args{switches});
d83945bc 474 }
137352a2 475 if (defined $args{prog}) {
21820af6
JH
476 die "test.pl:runperl(): both 'prog' and 'progs' cannot be used " . _where()
477 if defined $args{progs};
d83945bc
A
478 $args{progs} = [$args{prog}]
479 }
480 if (defined $args{progs}) {
21820af6
JH
481 die "test.pl:runperl(): 'progs' must be an ARRAYREF " . _where()
482 unless ref $args{progs} eq "ARRAY";
d83945bc 483 foreach my $prog (@{$args{progs}}) {
3d7a9343
NC
484 if ($prog =~ tr/'"// && !$args{non_portable}) {
485 warn "quotes in prog >>$prog<< are not portable";
486 }
d83945bc 487 if ($is_mswin || $is_netware || $is_vms) {
11ea18f2 488 $runperl = $runperl . qq ( -e "$prog" );
d83945bc
A
489 }
490 else {
11ea18f2 491 $runperl = $runperl . qq ( -e '$prog' );
d83945bc
A
492 }
493 }
137352a2 494 } elsif (defined $args{progfile}) {
11ea18f2 495 $runperl = $runperl . qq( "$args{progfile}");
9a731dbd
NC
496 } else {
497 # You probaby didn't want to be sucking in from the upstream stdin
498 die "test.pl:runperl(): none of prog, progs, progfile, args, "
499 . " switches or stdin specified"
500 unless defined $args{args} or defined $args{switches}
501 or defined $args{stdin};
137352a2
RGS
502 }
503 if (defined $args{stdin}) {
dc459aad
JH
504 # so we don't try to put literal newlines and crs onto the
505 # command line.
506 $args{stdin} =~ s/\n/\\n/g;
507 $args{stdin} =~ s/\r/\\r/g;
5ae09a77 508
137352a2 509 if ($is_mswin || $is_netware || $is_vms) {
5fe9b82b 510 $runperl = qq{$Perl -e "print qq(} .
137352a2
RGS
511 $args{stdin} . q{)" | } . $runperl;
512 }
513 else {
5fe9b82b 514 $runperl = qq{$Perl -e 'print qq(} .
137352a2
RGS
515 $args{stdin} . q{)' | } . $runperl;
516 }
517 }
518 if (defined $args{args}) {
1cce9906 519 $runperl = _quote_args($runperl, $args{args});
cb9c5e20 520 }
11ea18f2 521 $runperl = $runperl . ' 2>&1' if $args{stderr};
cb9c5e20
JH
522 if ($args{verbose}) {
523 my $runperldisplay = $runperl;
524 $runperldisplay =~ s/\n/\n\#/g;
3d66076a 525 _print_stderr "# $runperldisplay\n";
137352a2 526 }
4cd2bd1f
JH
527 return $runperl;
528}
529
530sub runperl {
9a731dbd
NC
531 die "test.pl:runperl() does not take a hashref"
532 if ref $_[0] and ref $_[0] eq 'HASH';
4cd2bd1f 533 my $runperl = &_create_runperl;
613de57f
NC
534 my $result;
535
8210c8d3
MB
536 my $tainted = ${^TAINT};
537 my %args = @_;
485f531e 538 exists $args{switches} && grep m/^-T$/, @{$args{switches}} and $tainted = $tainted + 1;
8210c8d3
MB
539
540 if ($tainted) {
613de57f
NC
541 # We will assume that if you're running under -T, you really mean to
542 # run a fresh perl, so we'll brute force launder everything for you
543 my $sep;
544
afe79e7b 545 if (! eval 'require Config; 1') {
613de57f
NC
546 warn "test.pl had problems loading Config: $@";
547 $sep = ':';
548 } else {
afe79e7b 549 $sep = $Config::Config{path_sep};
a70a1627 550 }
613de57f
NC
551
552 my @keys = grep {exists $ENV{$_}} qw(CDPATH IFS ENV BASH_ENV);
553 local @ENV{@keys} = ();
554 # Untaint, plus take out . and empty string:
02bb3106 555 local $ENV{'DCL$PATH'} = $1 if $is_vms && exists($ENV{'DCL$PATH'}) && ($ENV{'DCL$PATH'} =~ /(.*)/s);
613de57f 556 $ENV{PATH} =~ /(.*)/s;
8210c8d3 557 local $ENV{PATH} =
3b6d8381 558 join $sep, grep { $_ ne "" and $_ ne "." and -d $_ and
326b5008 559 ($is_mswin or $is_vms or !(stat && (stat _)[2]&0022)) }
8210c8d3 560 split quotemeta ($sep), $1;
59aae9bd
JH
561 if ($is_cygwin) { # Must have /bin under Cygwin
562 if (length $ENV{PATH}) {
563 $ENV{PATH} = $ENV{PATH} . $sep;
564 }
565 $ENV{PATH} = $ENV{PATH} . '/bin';
566 }
613de57f
NC
567 $runperl =~ /(.*)/s;
568 $runperl = $1;
569
570 $result = `$runperl`;
571 } else {
572 $result = `$runperl`;
a70a1627 573 }
137352a2
RGS
574 $result =~ s/\n\n/\n/ if $is_vms; # XXX pipes sometimes double these
575 return $result;
576}
577
140f5369
MS
578# Nice alias
579*run_perl = *run_perl = \&runperl; # shut up "used only once" warning
8799135f 580
c4fbe247 581sub DIE {
3d66076a 582 _print_stderr "# @_\n";
c4fbe247 583 exit 1;
8799135f
MS
584}
585
b5fe401b 586# A somewhat safer version of the sometimes wrong $^X.
17a740d5
JH
587sub which_perl {
588 unless (defined $Perl) {
589 $Perl = $^X;
8210c8d3 590
73421c4a
CB
591 # VMS should have 'perl' aliased properly
592 return $Perl if $^O eq 'VMS';
593
17a740d5 594 my $exe;
afe79e7b 595 if (! eval 'require Config; 1') {
17a740d5
JH
596 warn "test.pl had problems loading Config: $@";
597 $exe = '';
85363d30 598 } else {
afe79e7b 599 $exe = $Config::Config{_exe};
85363d30 600 }
da405c16 601 $exe = '' unless defined $exe;
8210c8d3 602
17a740d5
JH
603 # This doesn't absolutize the path: beware of future chdirs().
604 # We could do File::Spec->abs2rel() but that does getcwd()s,
605 # which is a bit heavyweight to do here.
8210c8d3 606
17a740d5 607 if ($Perl =~ /^perl\Q$exe\E$/i) {
8db06b02 608 my $perl = "perl$exe";
afe79e7b 609 if (! eval 'require File::Spec; 1') {
17a740d5 610 warn "test.pl had problems loading File::Spec: $@";
8db06b02 611 $Perl = "./$perl";
17a740d5 612 } else {
8db06b02 613 $Perl = File::Spec->catfile(File::Spec->curdir(), $perl);
17a740d5
JH
614 }
615 }
196918b0
PG
616
617 # Build up the name of the executable file from the name of
618 # the command.
619
620 if ($Perl !~ /\Q$exe\E$/i) {
11ea18f2 621 $Perl = $Perl . $exe;
196918b0 622 }
c880be78 623
8db06b02 624 warn "which_perl: cannot find $Perl from $^X" unless -f $Perl;
8210c8d3 625
17a740d5
JH
626 # For subcommands to use.
627 $ENV{PERLEXE} = $Perl;
85363d30 628 }
17a740d5 629 return $Perl;
b5fe401b
MS
630}
631
435e7af6
NC
632sub unlink_all {
633 foreach my $file (@_) {
634 1 while unlink $file;
3d66076a 635 _print_stderr "# Couldn't unlink '$file': $!\n" if -f $file;
435e7af6
NC
636 }
637}
eeabcb2d 638
748a4b20
NC
639my %tmpfiles;
640END { unlink_all keys %tmpfiles }
641
642# A regexp that matches the tempfile names
643$::tempfile_regexp = 'tmp\d+[A-Z][A-Z]?';
c1ddc35c 644
7a7e4936
NC
645# Avoid ++, avoid ranges, avoid split //
646my @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);
647sub tempfile {
648 my $count = 0;
649 do {
650 my $temp = $count;
651 my $try = "tmp$$";
652 do {
11ea18f2 653 $try = $try . $letters[$temp % 26];
748a4b20 654 $temp = int ($temp / 26);
7a7e4936 655 } while $temp;
748a4b20
NC
656 # Need to note all the file names we allocated, as a second request may
657 # come before the first is created.
658 if (!-e $try && !$tmpfiles{$try}) {
c1ddc35c 659 # We have a winner
11ea18f2 660 $tmpfiles{$try} = 1;
c1ddc35c
NC
661 return $try;
662 }
7a7e4936
NC
663 $count = $count + 1;
664 } while $count < 26 * 26;
665 die "Can't find temporary file name starting 'tmp$$'";
666}
667
c1ddc35c 668# This is the temporary file for _fresh_perl
7a7e4936 669my $tmpfile = tempfile();
eeabcb2d 670
f5cda331
JH
671#
672# _fresh_perl
673#
674# The $resolve must be a subref that tests the first argument
675# for success, or returns the definition of success (e.g. the
676# expected scalar) if given no arguments.
677#
678
679sub _fresh_perl {
680 my($prog, $resolve, $runperl_args, $name) = @_;
eeabcb2d 681
11ea18f2
NC
682 # Given the choice of the mis-parsable {}
683 # (we want an anon hash, but a borked lexer might think that it's a block)
684 # or relying on taking a reference to a lexical
685 # (\ might be mis-parsed, and the reference counting on the pad may go
686 # awry)
687 # it feels like the least-worse thing is to assume that auto-vivification
688 # works. At least, this is only going to be a run-time failure, so won't
689 # affect tests using this file but not this function.
eeabcb2d
MS
690 $runperl_args->{progfile} = $tmpfile;
691 $runperl_args->{stderr} = 1;
692
693 open TEST, ">$tmpfile" or die "Cannot open $tmpfile: $!";
694
695 # VMS adjustments
696 if( $^O eq 'VMS' ) {
697 $prog =~ s#/dev/null#NL:#;
698
8210c8d3 699 # VMS file locking
eeabcb2d
MS
700 $prog =~ s{if \(-e _ and -f _ and -r _\)}
701 {if (-e _ and -f _)}
702 }
703
0d65d7d5 704 print TEST $prog;
eeabcb2d
MS
705 close TEST or die "Cannot close $tmpfile: $!";
706
707 my $results = runperl(%$runperl_args);
708 my $status = $?;
709
710 # Clean up the results into something a bit more predictable.
50f17f89 711 $results =~ s/\n+$//;
748a4b20
NC
712 $results =~ s/at\s+$::tempfile_regexp\s+line/at - line/g;
713 $results =~ s/of\s+$::tempfile_regexp\s+aborted/of - aborted/g;
eeabcb2d
MS
714
715 # bison says 'parse error' instead of 'syntax error',
716 # various yaccs may or may not capitalize 'syntax'.
717 $results =~ s/^(syntax|parse) error/syntax error/mig;
718
719 if ($^O eq 'VMS') {
720 # some tests will trigger VMS messages that won't be expected
721 $results =~ s/\n?%[A-Z]+-[SIWEF]-[A-Z]+,.*//;
722
723 # pipes double these sometimes
724 $results =~ s/\n\n/\n/g;
725 }
726
f5cda331 727 my $pass = $resolve->($results);
eeabcb2d 728 unless ($pass) {
cf8feb78
MJD
729 _diag "# PROG: \n$prog\n";
730 _diag "# EXPECTED:\n", $resolve->(), "\n";
731 _diag "# GOT:\n$results\n";
732 _diag "# STATUS: $status\n";
eeabcb2d
MS
733 }
734
e2c38acd
JH
735 # Use the first line of the program as a name if none was given
736 unless( $name ) {
737 ($first_line, $name) = $prog =~ /^((.{1,50}).*)/;
11ea18f2 738 $name = $name . '...' if length $first_line > length $name;
e2c38acd 739 }
eeabcb2d 740
f5cda331
JH
741 _ok($pass, _where(), "fresh_perl - $name");
742}
743
744#
141f445b 745# fresh_perl_is
f5cda331
JH
746#
747# Combination of run_perl() and is().
748#
749
750sub fresh_perl_is {
751 my($prog, $expected, $runperl_args, $name) = @_;
50f17f89
MS
752
753 # _fresh_perl() is going to clip the trailing newlines off the result.
754 # This will make it so the test author doesn't have to know that.
755 $expected =~ s/\n+$//;
756
dcc7f481 757 local $Level = 2;
f5cda331
JH
758 _fresh_perl($prog,
759 sub { @_ ? $_[0] eq $expected : $expected },
760 $runperl_args, $name);
761}
762
763#
141f445b 764# fresh_perl_like
f5cda331
JH
765#
766# Combination of run_perl() and like().
767#
768
769sub fresh_perl_like {
770 my($prog, $expected, $runperl_args, $name) = @_;
dcc7f481 771 local $Level = 2;
f5cda331 772 _fresh_perl($prog,
077f8342 773 sub { @_ ? $_[0] =~ $expected : $expected },
f5cda331 774 $runperl_args, $name);
eeabcb2d
MS
775}
776
35a60386
RGS
777sub can_ok ($@) {
778 my($proto, @methods) = @_;
779 my $class = ref $proto || $proto;
780
781 unless( @methods ) {
782 return _ok( 0, _where(), "$class->can(...)" );
783 }
784
785 my @nok = ();
786 foreach my $method (@methods) {
787 local($!, $@); # don't interfere with caller's $@
788 # eval sometimes resets $!
789 eval { $proto->can($method) } || push @nok, $method;
790 }
791
792 my $name;
8210c8d3 793 $name = @methods == 1 ? "$class->can('$methods[0]')"
35a60386 794 : "$class->can(...)";
8210c8d3 795
35a60386
RGS
796 _ok( !@nok, _where(), $name );
797}
798
ad4e703e
MS
799
800# Call $class->new( @$args ); and run the result through isa_ok.
801# See Test::More::new_ok
802sub new_ok {
803 my($class, $args, $obj_name) = @_;
804 $args ||= [];
805 $object_name = "The object" unless defined $obj_name;
806
807 local $Level = $Level + 1;
808
809 my $obj;
810 my $ok = eval { $obj = $class->new(@$args); 1 };
811 my $error = $@;
812
813 if($ok) {
814 isa_ok($obj, $class, $object_name);
815 }
816 else {
817 ok( 0, "new() died" );
818 diag("Error was: $@");
819 }
820
821 return $obj;
822
823}
824
825
35a60386
RGS
826sub isa_ok ($$;$) {
827 my($object, $class, $obj_name) = @_;
828
829 my $diag;
830 $obj_name = 'The object' unless defined $obj_name;
831 my $name = "$obj_name isa $class";
832 if( !defined $object ) {
833 $diag = "$obj_name isn't defined";
834 }
835 elsif( !ref $object ) {
836 $diag = "$obj_name isn't a reference";
837 }
838 else {
839 # We can't use UNIVERSAL::isa because we want to honor isa() overrides
840 local($@, $!); # eval sometimes resets $!
841 my $rslt = eval { $object->isa($class) };
842 if( $@ ) {
843 if( $@ =~ /^Can't call method "isa" on unblessed reference/ ) {
844 if( !UNIVERSAL::isa($object, $class) ) {
845 my $ref = ref $object;
846 $diag = "$obj_name isn't a '$class' it's a '$ref'";
847 }
848 } else {
849 die <<WHOA;
850WHOA! I tried to call ->isa on your object and got some weird error.
851This should never happen. Please contact the author immediately.
852Here's the error.
853$@
854WHOA
855 }
856 }
857 elsif( !$rslt ) {
858 my $ref = ref $object;
859 $diag = "$obj_name isn't a '$class' it's a '$ref'";
860 }
861 }
862
863 _ok( !$diag, _where(), $name );
864}
865
087986a7 866# Set a watchdog to timeout the entire test file
5fe9b82b
JH
867# NOTE: If the test file uses 'threads', then call the watchdog() function
868# _AFTER_ the 'threads' module is loaded.
5732108f 869sub watchdog ($;$)
087986a7
JH
870{
871 my $timeout = shift;
36436324 872 my $method = shift || "";
087986a7
JH
873 my $timeout_msg = 'Test process timed out - terminating';
874
e07ce2e4
GG
875 # Valgrind slows perl way down so give it more time before dying.
876 $timeout *= 10 if $ENV{PERL_VALGRIND};
877
087986a7
JH
878 my $pid_to_kill = $$; # PID for this process
879
5732108f
GG
880 if ($method eq "alarm") {
881 goto WATCHDOG_VIA_ALARM;
882 }
883
140f5369
MS
884 # shut up use only once warning
885 my $threads_on = $threads::threads && $threads::threads;
886
5fe9b82b
JH
887 # Don't use a watchdog process if 'threads' is loaded -
888 # use a watchdog thread instead
140f5369 889 if (!$threads_on) {
5fe9b82b
JH
890
891 # On Windows and VMS, try launching a watchdog process
892 # using system(1, ...) (see perlport.pod)
893 if (($^O eq 'MSWin32') || ($^O eq 'VMS')) {
894 # On Windows, try to get the 'real' PID
895 if ($^O eq 'MSWin32') {
896 eval { require Win32; };
897 if (defined(&Win32::GetCurrentProcessId)) {
898 $pid_to_kill = Win32::GetCurrentProcessId();
899 }
087986a7 900 }
087986a7 901
5fe9b82b
JH
902 # If we still have a fake PID, we can't use this method at all
903 return if ($pid_to_kill <= 0);
904
905 # Launch watchdog process
906 my $watchdog;
907 eval {
908 local $SIG{'__WARN__'} = sub {
909 _diag("Watchdog warning: $_[0]");
910 };
c1c45e36 911 my $sig = $^O eq 'VMS' ? 'TERM' : 'KILL';
9b7a5066
CB
912 my $cmd = _create_runperl( prog => "sleep($timeout);" .
913 "warn qq/# $timeout_msg" . '\n/;' .
c1c45e36 914 "kill($sig, $pid_to_kill);");
9b7a5066 915 $watchdog = system(1, $cmd);
5fe9b82b
JH
916 };
917 if ($@ || ($watchdog <= 0)) {
918 _diag('Failed to start watchdog');
919 _diag($@) if $@;
920 undef($watchdog);
921 return;
922 }
087986a7 923
5fe9b82b
JH
924 # Add END block to parent to terminate and
925 # clean up watchdog process
7e1027b9
JH
926 eval "END { local \$! = 0; local \$? = 0;
927 wait() if kill('KILL', $watchdog); };";
5fe9b82b 928 return;
087986a7 929 }
087986a7 930
5fe9b82b
JH
931 # Try using fork() to generate a watchdog process
932 my $watchdog;
933 eval { $watchdog = fork() };
934 if (defined($watchdog)) {
935 if ($watchdog) { # Parent process
936 # Add END block to parent to terminate and
937 # clean up watchdog process
7e1027b9
JH
938 eval "END { local \$! = 0; local \$? = 0;
939 wait() if kill('KILL', $watchdog); };";
5fe9b82b
JH
940 return;
941 }
942
943 ### Watchdog process code
087986a7 944
5fe9b82b
JH
945 # Load POSIX if available
946 eval { require POSIX; };
087986a7 947
5fe9b82b
JH
948 # Execute the timeout
949 sleep($timeout - 2) if ($timeout > 2); # Workaround for perlbug #49073
950 sleep(2);
087986a7 951
5fe9b82b
JH
952 # Kill test process if still running
953 if (kill(0, $pid_to_kill)) {
954 _diag($timeout_msg);
955 kill('KILL', $pid_to_kill);
956 }
087986a7 957
5fe9b82b
JH
958 # Don't execute END block (added at beginning of this file)
959 $NO_ENDING = 1;
087986a7 960
5fe9b82b
JH
961 # Terminate ourself (i.e., the watchdog)
962 POSIX::_exit(1) if (defined(&POSIX::_exit));
963 exit(1);
087986a7
JH
964 }
965
5fe9b82b 966 # fork() failed - fall through and try using a thread
087986a7
JH
967 }
968
5fe9b82b
JH
969 # Use a watchdog thread because either 'threads' is loaded,
970 # or fork() failed
afe79e7b 971 if (eval 'require threads; 1') {
087986a7
JH
972 threads->create(sub {
973 # Load POSIX if available
974 eval { require POSIX; };
975
976 # Execute the timeout
c1c45e36 977 my $time_left = $timeout;
a6c9a815 978 do {
11ea18f2 979 $time_left = $time_left - sleep($time_left);
a6c9a815 980 } while ($time_left > 0);
087986a7
JH
981
982 # Kill the parent (and ourself)
5fe9b82b 983 select(STDERR); $| = 1;
087986a7
JH
984 _diag($timeout_msg);
985 POSIX::_exit(1) if (defined(&POSIX::_exit));
c1c45e36
CB
986 my $sig = $^O eq 'VMS' ? 'TERM' : 'KILL';
987 kill($sig, $pid_to_kill);
087986a7
JH
988 })->detach();
989 return;
990 }
991
5fe9b82b 992 # If everything above fails, then just use an alarm timeout
5732108f 993WATCHDOG_VIA_ALARM:
087986a7
JH
994 if (eval { alarm($timeout); 1; }) {
995 # Load POSIX if available
996 eval { require POSIX; };
997
998 # Alarm handler will do the actual 'killing'
999 $SIG{'ALRM'} = sub {
5fe9b82b 1000 select(STDERR); $| = 1;
087986a7
JH
1001 _diag($timeout_msg);
1002 POSIX::_exit(1) if (defined(&POSIX::_exit));
c1c45e36
CB
1003 my $sig = $^O eq 'VMS' ? 'TERM' : 'KILL';
1004 kill($sig, $pid_to_kill);
087986a7
JH
1005 };
1006 }
1007}
1008
f69d9fdf
KW
1009my $cp_0037 = # EBCDIC code page 0037
1010 '\x00\x01\x02\x03\x37\x2D\x2E\x2F\x16\x05\x25\x0B\x0C\x0D\x0E\x0F' .
1011 '\x10\x11\x12\x13\x3C\x3D\x32\x26\x18\x19\x3F\x27\x1C\x1D\x1E\x1F' .
1012 '\x40\x5A\x7F\x7B\x5B\x6C\x50\x7D\x4D\x5D\x5C\x4E\x6B\x60\x4B\x61' .
1013 '\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\x7A\x5E\x4C\x7E\x6E\x6F' .
1014 '\x7C\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xD1\xD2\xD3\xD4\xD5\xD6' .
1015 '\xD7\xD8\xD9\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xBA\xE0\xBB\xB0\x6D' .
1016 '\x79\x81\x82\x83\x84\x85\x86\x87\x88\x89\x91\x92\x93\x94\x95\x96' .
1017 '\x97\x98\x99\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xC0\x4F\xD0\xA1\x07' .
1018 '\x20\x21\x22\x23\x24\x15\x06\x17\x28\x29\x2A\x2B\x2C\x09\x0A\x1B' .
1019 '\x30\x31\x1A\x33\x34\x35\x36\x08\x38\x39\x3A\x3B\x04\x14\x3E\xFF' .
1020 '\x41\xAA\x4A\xB1\x9F\xB2\x6A\xB5\xBD\xB4\x9A\x8A\x5F\xCA\xAF\xBC' .
1021 '\x90\x8F\xEA\xFA\xBE\xA0\xB6\xB3\x9D\xDA\x9B\x8B\xB7\xB8\xB9\xAB' .
1022 '\x64\x65\x62\x66\x63\x67\x9E\x68\x74\x71\x72\x73\x78\x75\x76\x77' .
1023 '\xAC\x69\xED\xEE\xEB\xEF\xEC\xBF\x80\xFD\xFE\xFB\xFC\xAD\xAE\x59' .
1024 '\x44\x45\x42\x46\x43\x47\x9C\x48\x54\x51\x52\x53\x58\x55\x56\x57' .
1025 '\x8C\x49\xCD\xCE\xCB\xCF\xCC\xE1\x70\xDD\xDE\xDB\xDC\x8D\x8E\xDF';
1026
1027my $cp_1047 = # EBCDIC code page 1047
1028 '\x00\x01\x02\x03\x37\x2D\x2E\x2F\x16\x05\x15\x0B\x0C\x0D\x0E\x0F' .
1029 '\x10\x11\x12\x13\x3C\x3D\x32\x26\x18\x19\x3F\x27\x1C\x1D\x1E\x1F' .
1030 '\x40\x5A\x7F\x7B\x5B\x6C\x50\x7D\x4D\x5D\x5C\x4E\x6B\x60\x4B\x61' .
1031 '\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\x7A\x5E\x4C\x7E\x6E\x6F' .
1032 '\x7C\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xD1\xD2\xD3\xD4\xD5\xD6' .
1033 '\xD7\xD8\xD9\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xAD\xE0\xBD\x5F\x6D' .
1034 '\x79\x81\x82\x83\x84\x85\x86\x87\x88\x89\x91\x92\x93\x94\x95\x96' .
1035 '\x97\x98\x99\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xC0\x4F\xD0\xA1\x07' .
1036 '\x20\x21\x22\x23\x24\x25\x06\x17\x28\x29\x2A\x2B\x2C\x09\x0A\x1B' .
1037 '\x30\x31\x1A\x33\x34\x35\x36\x08\x38\x39\x3A\x3B\x04\x14\x3E\xFF' .
1038 '\x41\xAA\x4A\xB1\x9F\xB2\x6A\xB5\xBB\xB4\x9A\x8A\xB0\xCA\xAF\xBC' .
1039 '\x90\x8F\xEA\xFA\xBE\xA0\xB6\xB3\x9D\xDA\x9B\x8B\xB7\xB8\xB9\xAB' .
1040 '\x64\x65\x62\x66\x63\x67\x9E\x68\x74\x71\x72\x73\x78\x75\x76\x77' .
1041 '\xAC\x69\xED\xEE\xEB\xEF\xEC\xBF\x80\xFD\xFE\xFB\xFC\xBA\xAE\x59' .
1042 '\x44\x45\x42\x46\x43\x47\x9C\x48\x54\x51\x52\x53\x58\x55\x56\x57' .
1043 '\x8C\x49\xCD\xCE\xCB\xCF\xCC\xE1\x70\xDD\xDE\xDB\xDC\x8D\x8E\xDF';
1044
1045my $cp_bc = # EBCDIC code page POSiX-BC
1046 '\x00\x01\x02\x03\x37\x2D\x2E\x2F\x16\x05\x15\x0B\x0C\x0D\x0E\x0F' .
1047 '\x10\x11\x12\x13\x3C\x3D\x32\x26\x18\x19\x3F\x27\x1C\x1D\x1E\x1F' .
1048 '\x40\x5A\x7F\x7B\x5B\x6C\x50\x7D\x4D\x5D\x5C\x4E\x6B\x60\x4B\x61' .
1049 '\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\x7A\x5E\x4C\x7E\x6E\x6F' .
1050 '\x7C\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xD1\xD2\xD3\xD4\xD5\xD6' .
1051 '\xD7\xD8\xD9\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xBB\xBC\xBD\x6A\x6D' .
1052 '\x4A\x81\x82\x83\x84\x85\x86\x87\x88\x89\x91\x92\x93\x94\x95\x96' .
1053 '\x97\x98\x99\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xFB\x4F\xFD\xFF\x07' .
1054 '\x20\x21\x22\x23\x24\x25\x06\x17\x28\x29\x2A\x2B\x2C\x09\x0A\x1B' .
1055 '\x30\x31\x1A\x33\x34\x35\x36\x08\x38\x39\x3A\x3B\x04\x14\x3E\x5F' .
1056 '\x41\xAA\xB0\xB1\x9F\xB2\xD0\xB5\x79\xB4\x9A\x8A\xBA\xCA\xAF\xA1' .
1057 '\x90\x8F\xEA\xFA\xBE\xA0\xB6\xB3\x9D\xDA\x9B\x8B\xB7\xB8\xB9\xAB' .
1058 '\x64\x65\x62\x66\x63\x67\x9E\x68\x74\x71\x72\x73\x78\x75\x76\x77' .
1059 '\xAC\x69\xED\xEE\xEB\xEF\xEC\xBF\x80\xE0\xFE\xDD\xFC\xAD\xAE\x59' .
1060 '\x44\x45\x42\x46\x43\x47\x9C\x48\x54\x51\x52\x53\x58\x55\x56\x57' .
1061 '\x8C\x49\xCD\xCE\xCB\xCF\xCC\xE1\x70\xC0\xDE\xDB\xDC\x8D\x8E\xDF';
1062
1063my $straight = # Avoid ranges
1064 '\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B\x0C\x0D\x0E\x0F' .
1065 '\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F' .
1066 '\x20\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2A\x2B\x2C\x2D\x2E\x2F' .
1067 '\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3A\x3B\x3C\x3D\x3E\x3F' .
1068 '\x40\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4A\x4B\x4C\x4D\x4E\x4F' .
1069 '\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5A\x5B\x5C\x5D\x5E\x5F' .
1070 '\x60\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6A\x6B\x6C\x6D\x6E\x6F' .
1071 '\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7A\x7B\x7C\x7D\x7E\x7F' .
1072 '\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F' .
1073 '\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F' .
1074 '\xA0\xA1\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xAA\xAB\xAC\xAD\xAE\xAF' .
1075 '\xB0\xB1\xB2\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xBB\xBC\xBD\xBE\xBF' .
1076 '\xC0\xC1\xC2\xC3\xC4\xC5\xC6\xC7\xC8\xC9\xCA\xCB\xCC\xCD\xCE\xCF' .
1077 '\xD0\xD1\xD2\xD3\xD4\xD5\xD6\xD7\xD8\xD9\xDA\xDB\xDC\xDD\xDE\xDF' .
1078 '\xE0\xE1\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xEA\xEB\xEC\xED\xEE\xEF' .
1079 '\xF0\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\xFA\xFB\xFC\xFD\xFE\xFF';
1080
1081# The following 2 functions allow tests to work on both EBCDIC and
1082# ASCII-ish platforms. They convert string scalars between the native
1083# character set and the set of 256 characters which is usually called
1084# Latin1.
1085#
1086# These routines don't work on UTF-EBCDIC and UTF-8.
1087
1088sub native_to_latin1($) {
1089 my $string = shift;
1090
1091 return $string if ord('^') == 94; # ASCII, Latin1
1092 my $cp;
1093 if (ord('^') == 95) { # EBCDIC 1047
1094 $cp = \$cp_1047;
1095 }
1096 elsif (ord('^') == 106) { # EBCDIC POSIX-BC
1097 $cp = \$cp_bc;
1098 }
1099 elsif (ord('^') == 176) { # EBCDIC 037 */
1100 $cp = \$cp_0037;
1101 }
1102 else {
1103 die "Unknown native character set";
1104 }
1105
1106 eval '$string =~ tr/' . $$cp . '/' . $straight . '/';
1107 return $string;
1108}
1109
1110sub latin1_to_native($) {
1111 my $string = shift;
1112
1113 return $string if ord('^') == 94; # ASCII, Latin1
1114 my $cp;
1115 if (ord('^') == 95) { # EBCDIC 1047
1116 $cp = \$cp_1047;
1117 }
1118 elsif (ord('^') == 106) { # EBCDIC POSIX-BC
1119 $cp = \$cp_bc;
1120 }
1121 elsif (ord('^') == 176) { # EBCDIC 037 */
1122 $cp = \$cp_0037;
1123 }
1124 else {
1125 die "Unknown native character set";
1126 }
1127
1128 eval '$string =~ tr/' . $straight . '/' . $$cp . '/';
1129 return $string;
1130}
1131
883cce4a
KW
1132sub ord_latin1_to_native {
1133 # given an input latin1 code point, return the platform's native
1134 # equivalent value
1135
1136 return ord latin1_to_native(chr $_[0]);
1137}
1138
1139sub ord_native_to_latin1 {
1140 # given an input platform code point, return the latin1 equivalent value
1141
1142 return ord native_to_latin1(chr $_[0]);
1143}
1144
69026470 11451;