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1#!./perl
2
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3BEGIN {
4 chdir 't' if -d 't';
5 @INC = '../lib';
6108250c 6 require './test.pl';
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7}
8
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9use strict; # Amazed that this hackery can be made strict ...
10
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11# read in a file
12sub cat {
13 my $file = shift;
14 local $/;
15 open my $fh, $file or die "can't open '$file': $!";
16 my $data = <$fh>;
17 close $fh;
18 $data;
19}
20
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21#-- testing numeric fields in all variants (WL)
22
23sub swrite {
24 my $format = shift;
25 local $^A = ""; # don't litter, use a local bin
26 formline( $format, @_ );
27 return $^A;
28}
29
30my @NumTests = (
d1f6232e 31 # [ format, value1, expected1, value2, expected2, .... ]
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32 [ '@###', 0, ' 0', 1, ' 1', 9999.6, '####',
33 9999.4999, '9999', -999.6, '####', 1e+100, '####' ],
d1f6232e 34
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35 [ '@0##', 0, '0000', 1, '0001', 9999.6, '####',
36 -999.4999, '-999', -999.6, '####', 1e+100, '####' ],
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37
38 [ '^###', 0, ' 0', undef, ' ' ],
39
40 [ '^0##', 0, '0000', undef, ' ' ],
41
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42 [ '@###.', 0, ' 0.', 1, ' 1.', 9999.6, '#####',
43 9999.4999, '9999.', -999.6, '#####' ],
d1f6232e 44
9acd3e2c 45 [ '@##.##', 0, ' 0.00', 1, ' 1.00', 999.996, '######',
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46 999.99499, '999.99', -100, '######' ],
47
48 [ '@0#.##', 0, '000.00', 1, '001.00', 10, '010.00',
8975a8c2 49 -0.0001, qr/^[\-0]00\.00$/ ],
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50
51);
52
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53
54my $num_tests = 0;
55for my $tref ( @NumTests ){
d1f6232e 56 $num_tests += (@$tref - 1)/2;
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57}
58#---------------------------------------------------------
59
60# number of tests in section 1
61my $bas_tests = 20;
62
63# number of tests in section 3
76912796 64my $bug_tests = 4 + 3 * 3 * 5 * 2 * 3 + 2 + 66 + 4 + 2 + 1 + 1;
a1b95068 65
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66# number of tests in section 4
67my $hmb_tests = 35;
68
69my $tests = $bas_tests + $num_tests + $bug_tests + $hmb_tests;
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70
71plan $tests;
a687059c 72
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73############
74## Section 1
75############
76
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77use vars qw($fox $multiline $foo $good);
78
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79format OUT =
80the quick brown @<<
81$fox
82jumped
83@*
84$multiline
85^<<<<<<<<<
86$foo
87^<<<<<<<<<
88$foo
89^<<<<<<...
90$foo
91now @<<the@>>>> for all@|||||men to come @<<<<
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92{
93 'i' . 's', "time\n", $good, 'to'
94}
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95.
96
a0d0e21e 97open(OUT, '>Op_write.tmp') || die "Can't create Op_write.tmp";
951af6b5 98END { unlink_all 'Op_write.tmp' }
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99
100$fox = 'foxiness';
101$good = 'good';
102$multiline = "forescore\nand\nseven years\n";
103$foo = 'when in the course of human events it becomes necessary';
104write(OUT);
d1e4d418 105close OUT or die "Could not close: $!";
a687059c 106
90f67b00 107my $right =
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108"the quick brown fox
109jumped
110forescore
111and
112seven years
113when in
114the course
115of huma...
116now is the time for all good men to come to\n";
117
951af6b5 118is cat('Op_write.tmp'), $right and unlink_all 'Op_write.tmp';
a687059c 119
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120$fox = 'wolfishness';
121my $fox = 'foxiness'; # Test a lexical variable.
122
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123format OUT2 =
124the quick brown @<<
125$fox
126jumped
127@*
128$multiline
129^<<<<<<<<< ~~
130$foo
131now @<<the@>>>> for all@|||||men to come @<<<<
132'i' . 's', "time\n", $good, 'to'
133.
134
a0d0e21e 135open OUT2, '>Op_write.tmp' or die "Can't create Op_write.tmp";
a687059c 136
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137$good = 'good';
138$multiline = "forescore\nand\nseven years\n";
139$foo = 'when in the course of human events it becomes necessary';
140write(OUT2);
d1e4d418 141close OUT2 or die "Could not close: $!";
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142
143$right =
144"the quick brown fox
145jumped
146forescore
147and
148seven years
149when in
150the course
151of human
152events it
153becomes
154necessary
155now is the time for all good men to come to\n";
156
951af6b5 157is cat('Op_write.tmp'), $right and unlink_all 'Op_write.tmp';
a687059c 158
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159eval <<'EOFORMAT';
160format OUT2 =
161the brown quick @<<
162$fox
163jumped
164@*
165$multiline
a0d0e21e 166and
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167^<<<<<<<<< ~~
168$foo
169now @<<the@>>>> for all@|||||men to come @<<<<
170'i' . 's', "time\n", $good, 'to'
171.
172EOFORMAT
173
a0d0e21e 174open(OUT2, '>Op_write.tmp') || die "Can't create Op_write.tmp";
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175
176$fox = 'foxiness';
177$good = 'good';
178$multiline = "forescore\nand\nseven years\n";
179$foo = 'when in the course of human events it becomes necessary';
180write(OUT2);
d1e4d418 181close OUT2 or die "Could not close: $!";
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182
183$right =
184"the brown quick fox
185jumped
186forescore
187and
188seven years
a0d0e21e 189and
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190when in
191the course
192of human
193events it
194becomes
195necessary
196now is the time for all good men to come to\n";
197
951af6b5 198is cat('Op_write.tmp'), $right and unlink_all 'Op_write.tmp';
0f85fab0 199
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200# formline tests
201
90f67b00 202$right = <<EOT;
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203@ a
204@> ab
205@>> abc
206@>>> abc
207@>>>> abc
208@>>>>> abc
209@>>>>>> abc
210@>>>>>>> abc
211@>>>>>>>> abc
212@>>>>>>>>> abc
213@>>>>>>>>>> abc
214EOT
215
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216my $was1 = my $was2 = '';
217use vars '$format2';
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218for (0..10) {
219 # lexical picture
220 $^A = '';
221 my $format1 = '@' . '>' x $_;
222 formline $format1, 'abc';
223 $was1 .= "$format1 $^A\n";
224 # global
225 $^A = '';
226 local $format2 = '@' . '>' x $_;
227 formline $format2, 'abc';
228 $was2 .= "$format2 $^A\n";
229}
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230is $was1, $right;
231is $was2, $right;
55497cff 232
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233$^A = '';
234
235# more test
236
237format OUT3 =
238^<<<<<<...
239$foo
240.
241
242open(OUT3, '>Op_write.tmp') || die "Can't create Op_write.tmp";
243
244$foo = 'fit ';
245write(OUT3);
d1e4d418 246close OUT3 or die "Could not close: $!";
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247
248$right =
249"fit\n";
250
951af6b5 251is cat('Op_write.tmp'), $right and unlink_all 'Op_write.tmp';
2027357e 252
7056ecde 253
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254# test lexicals and globals
255{
2027357e 256 my $test = curr_test();
445b3f51 257 my $this = "ok";
2027357e 258 our $that = $test;
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259 format LEX =
260@<<@|
261$this,$that
262.
263 open(LEX, ">&STDOUT") or die;
264 write LEX;
2027357e 265 $that = ++$test;
445b3f51 266 write LEX;
d1e4d418 267 close LEX or die "Could not close: $!";
2027357e 268 curr_test($test + 1);
445b3f51 269}
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270# LEX_INTERPNORMAL test
271my %e = ( a => 1 );
272format OUT4 =
273@<<<<<<
274"$e{a}"
275.
276open OUT4, ">Op_write.tmp" or die "Can't create Op_write.tmp";
277write (OUT4);
d1e4d418 278close OUT4 or die "Could not close: $!";
951af6b5 279is cat('Op_write.tmp'), "1\n" and unlink_all "Op_write.tmp";
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280
281eval <<'EOFORMAT';
282format OUT10 =
283@####.## @0###.##
284$test1, $test1
285.
286EOFORMAT
287
288open(OUT10, '>Op_write.tmp') || die "Can't create Op_write.tmp";
289
90f67b00 290use vars '$test1';
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291$test1 = 12.95;
292write(OUT10);
d1e4d418 293close OUT10 or die "Could not close: $!";
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294
295$right = " 12.95 00012.95\n";
951af6b5 296is cat('Op_write.tmp'), $right and unlink_all 'Op_write.tmp';
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297
298eval <<'EOFORMAT';
299format OUT11 =
300@0###.##
301$test1
302@ 0#
303$test1
304@0 #
305$test1
306.
307EOFORMAT
308
309open(OUT11, '>Op_write.tmp') || die "Can't create Op_write.tmp";
310
311$test1 = 12.95;
312write(OUT11);
d1e4d418 313close OUT11 or die "Could not close: $!";
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314
315$right =
316"00012.95
3171 0#
31810 #\n";
951af6b5 319is cat('Op_write.tmp'), $right and unlink_all 'Op_write.tmp';
9ccde9ea 320
31869a79 321{
2027357e 322 my $test = curr_test();
71f882da 323 my $el;
a1b95068 324 format OUT12 =
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325ok ^<<<<<<<<<<<<<<~~ # sv_chop() naze
326$el
327.
2027357e 328 my %hash = ($test => 3);
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329 open(OUT12, '>Op_write.tmp') || die "Can't create Op_write.tmp";
330
31869a79 331 for $el (keys %hash) {
a1b95068 332 write(OUT12);
31869a79 333 }
a1b95068 334 close OUT12 or die "Could not close: $!";
a344b90b 335 print cat('Op_write.tmp');
2027357e 336 curr_test($test + 1);
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337}
338
ea42cebc 339{
2027357e 340 my $test = curr_test();
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341 # Bug report and testcase by Alexey Tourbin
342 use Tie::Scalar;
343 my $v;
344 tie $v, 'Tie::StdScalar';
2027357e 345 $v = $test;
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346 format OUT13 =
347ok ^<<<<<<<<< ~~
348$v
349.
350 open(OUT13, '>Op_write.tmp') || die "Can't create Op_write.tmp";
351 write(OUT13);
352 close OUT13 or die "Could not close: $!";
a344b90b 353 print cat('Op_write.tmp');
2027357e 354 curr_test($test + 1);
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355}
356
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357{ # test 14
358 # Bug #24774 format without trailing \n failed assertion, but this
359 # must fail since we have a trailing ; in the eval'ed string (WL)
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360 my @v = ('k');
361 eval "format OUT14 = \n@\n\@v";
2027357e 362 like $@, qr/Format not terminated/;
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363}
364
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365{ # test 15
366 # text lost in ^<<< field with \r in value (WL)
367 my $txt = "line 1\rline 2";
368 format OUT15 =
369^<<<<<<<<<<<<<<<<<<
370$txt
371^<<<<<<<<<<<<<<<<<<
372$txt
373.
374 open(OUT15, '>Op_write.tmp') || die "Can't create Op_write.tmp";
375 write(OUT15);
376 close OUT15 or die "Could not close: $!";
a344b90b 377 my $res = cat('Op_write.tmp');
2027357e 378 is $res, "line 1\nline 2\n";
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379}
380
381{ # test 16: multiple use of a variable in same line with ^<
382 my $txt = "this_is_block_1 this_is_block_2 this_is_block_3 this_is_block_4";
383 format OUT16 =
384^<<<<<<<<<<<<<<<< ^<<<<<<<<<<<<<<<<
385$txt, $txt
386^<<<<<<<<<<<<<<<< ^<<<<<<<<<<<<<<<<
387$txt, $txt
388.
389 open(OUT16, '>Op_write.tmp') || die "Can't create Op_write.tmp";
390 write(OUT16);
391 close OUT16 or die "Could not close: $!";
a344b90b 392 my $res = cat('Op_write.tmp');
2027357e 393 is $res, <<EOD;
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394this_is_block_1 this_is_block_2
395this_is_block_3 this_is_block_4
396EOD
397}
398
399{ # test 17: @* "should be on a line of its own", but it should work
400 # cleanly with literals before and after. (WL)
401
402 my $txt = "This is line 1.\nThis is the second line.\nThird and last.\n";
403 format OUT17 =
404Here we go: @* That's all, folks!
405 $txt
406.
407 open(OUT17, '>Op_write.tmp') || die "Can't create Op_write.tmp";
408 write(OUT17);
409 close OUT17 or die "Could not close: $!";
a344b90b 410 my $res = cat('Op_write.tmp');
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411 chomp( $txt );
412 my $exp = <<EOD;
413Here we go: $txt That's all, folks!
414EOD
2027357e 415 is $res, $exp;
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416}
417
418{ # test 18: @# and ~~ would cause runaway format, but we now
419 # catch this while compiling (WL)
420
421 format OUT18 =
422@######## ~~
42310
424.
425 open(OUT18, '>Op_write.tmp') || die "Can't create Op_write.tmp";
426 eval { write(OUT18); };
2027357e 427 like $@, qr/Repeated format line will never terminate/;
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428 close OUT18 or die "Could not close: $!";
429}
430
431{ # test 19: \0 in an evel'ed format, doesn't cause empty lines (WL)
432 my $v = 'gaga';
433 eval "format OUT19 = \n" .
434 '@<<<' . "\0\n" .
435 '$v' . "\n" .
436 '@<<<' . "\0\n" .
437 '$v' . "\n.\n";
438 open(OUT19, '>Op_write.tmp') || die "Can't create Op_write.tmp";
439 write(OUT19);
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440 close OUT19 or die "Could not close: $!";
441 my $res = cat('Op_write.tmp');
2027357e 442 is $res, <<EOD;
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443gaga\0
444gaga\0
445EOD
446}
447
448{ # test 20: hash accesses; single '}' must not terminate format '}' (WL)
449 my %h = ( xkey => 'xval', ykey => 'yval' );
450 format OUT20 =
451@>>>> @<<<< ~~
452each %h
453@>>>> @<<<<
454$h{xkey}, $h{ykey}
455@>>>> @<<<<
456{ $h{xkey}, $h{ykey}
457}
458}
459.
460 my $exp = '';
461 while( my( $k, $v ) = each( %h ) ){
462 $exp .= sprintf( "%5s %s\n", $k, $v );
463 }
464 $exp .= sprintf( "%5s %s\n", $h{xkey}, $h{ykey} );
465 $exp .= sprintf( "%5s %s\n", $h{xkey}, $h{ykey} );
466 $exp .= "}\n";
467 open(OUT20, '>Op_write.tmp') || die "Can't create Op_write.tmp";
468 write(OUT20);
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469 close OUT20 or die "Could not close: $!";
470 my $res = cat('Op_write.tmp');
2027357e 471 is $res, $exp;
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472}
473
474
475#####################
476## Section 2
477## numeric formatting
478#####################
479
2027357e
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480curr_test($bas_tests + 1);
481
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482for my $tref ( @NumTests ){
483 my $writefmt = shift( @$tref );
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484 while (@$tref) {
485 my $val = shift @$tref;
486 my $expected = shift @$tref;
a1b95068 487 my $writeres = swrite( $writefmt, $val );
2027357e
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488 if (ref $expected) {
489 like $writeres, $expected, $writefmt;
490 } else {
491 is $writeres, $expected, $writefmt;
492 }
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493 }
494}
495
496
497#####################################
498## Section 3
f5b75c1c 499## Easiest to add new tests just here
2027357e 500#####################################
9ccde9ea 501
30a1e583
DM
502# DAPM. Exercise a couple of error codepaths
503
504{
505 local $~ = '';
506 eval { write };
6108250c 507 like $@, qr/Not a format reference/, 'format reference';
30a1e583
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508
509 $~ = "NOSUCHFORMAT";
510 eval { write };
6108250c 511 like $@, qr/Undefined format/, 'no such format';
30a1e583
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512}
513
f3f2f1a3 514{
e8e72d41
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515 package Count;
516
517 sub TIESCALAR {
518 my $class = shift;
519 bless [shift, 0, 0], $class;
520 }
521
522 sub FETCH {
523 my $self = shift;
524 ++$self->[1];
525 $self->[0];
526 }
527
528 sub STORE {
529 my $self = shift;
530 ++$self->[2];
531 $self->[0] = shift;
532 }
533}
534
535{
536 my ($pound_utf8, $pm_utf8) = map { my $a = "$_\x{100}"; chop $a; $a}
f3f2f1a3
NC
537 my ($pound, $pm) = ("\xA3", "\xB1");
538
539 foreach my $first ('N', $pound, $pound_utf8) {
540 foreach my $base ('N', $pm, $pm_utf8) {
003d2c64
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541 foreach my $second ($base, "$base\n", "$base\nMoo!", "$base\nMoo!\n",
542 "$base\nMoo!\n",) {
543 foreach (['^*', qr/(.+)/], ['@*', qr/(.*?)$/s]) {
544 my ($format, $re) = @$_;
b57b1734 545 $format = "1^*2 3${format}4";
e8e72d41 546 foreach my $class ('', 'Count') {
b57b1734 547 my $name = qq{swrite("$format", "$first", "$second") class="$class"};
e8e72d41 548 $name =~ s/\n/\\n/g;
b57b1734
DM
549 $name =~ s{(.)}{
550 ord($1) > 126 ? sprintf("\\x{%x}",ord($1)) : $1
551 }ge;
e8e72d41
NC
552
553 $first =~ /(.+)/ or die $first;
554 my $expect = "1${1}2";
555 $second =~ $re or die $second;
556 $expect .= " 3${1}4";
557
558 if ($class) {
559 my $copy1 = $first;
560 my $copy2;
561 tie $copy2, $class, $second;
b57b1734 562 is swrite("$format", $copy1, $copy2), $expect, $name;
e8e72d41
NC
563 my $obj = tied $copy2;
564 is $obj->[1], 1, 'value read exactly once';
565 } else {
566 my ($copy1, $copy2) = ($first, $second);
b57b1734 567 is swrite("$format", $copy1, $copy2), $expect, $name;
e8e72d41
NC
568 }
569 }
003d2c64 570 }
f3f2f1a3
NC
571 }
572 }
573 }
574}
9ccde9ea 575
35c6393c
NC
576{
577 # This will fail an assertion in 5.10.0 built with -DDEBUGGING (because
578 # pp_formline attempts to set SvCUR() on an SVt_RV). I suspect that it will
579 # be doing something similarly out of bounds on everything from 5.000
580 my $ref = [];
581 is swrite('>^*<', $ref), ">$ref<";
582 is swrite('>@*<', $ref), ">$ref<";
583}
584
d57f9278
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585format EMPTY =
586.
587
f5b75c1c 588my $test = curr_test();
6108250c 589
d57f9278
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590format Comment =
591ok @<<<<<
592$test
593.
594
d57f9278
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595
596# [ID 20020227.005] format bug with undefined _TOP
0bd0581c
DM
597
598open STDOUT_DUP, ">&STDOUT";
599my $oldfh = select STDOUT_DUP;
600$= = 10;
6108250c
NC
601{
602 local $~ = "Comment";
603 write;
604 curr_test($test + 1);
605 {
606 local $::TODO = '[ID 20020227.005] format bug with undefined _TOP';
607 is $-, 9;
608 }
609 is $^, "STDOUT_DUP_TOP";
0bd0581c
DM
610}
611select $oldfh;
68ba3c2c 612close STDOUT_DUP;
d57f9278 613
ef595a33
MB
614*CmT = *{$::{Comment}}{FORMAT};
615ok defined *{$::{CmT}}{FORMAT}, "glob assign";
616
3808a683
DM
617
618# RT #91032: Check that "non-real" strings like tie and overload work,
619# especially that they re-compile the pattern on each FETCH, and that
620# they don't overrun the buffer
621
622
623{
624 package RT91032;
625
626 sub TIESCALAR { bless [] }
627 my $i = 0;
628 sub FETCH { $i++; "A$i @> Z\n" }
629
630 use overload '""' => \&FETCH;
631
632 tie my $f, 'RT91032';
633
634 formline $f, "a";
635 formline $f, "bc";
636 ::is $^A, "A1 a Z\nA2 bc Z\n", "RT 91032: tied";
637 $^A = '';
638
639 my $g = bless []; # has overloaded stringify
640 formline $g, "de";
641 formline $g, "f";
642 ::is $^A, "A3 de Z\nA4 f Z\n", "RT 91032: overloaded";
643 $^A = '';
644
645 my $h = [];
646 formline $h, "junk1";
647 formline $h, "junk2";
648 ::is ref($h), 'ARRAY', "RT 91032: array ref still a ref";
649 ::like "$h", qr/^ARRAY\(0x[0-9a-f]+\)$/, "RT 91032: array stringifies ok";
650 ::is $^A, "$h$h","RT 91032: stringified array";
651 $^A = '';
652
653 # used to overwrite the ~~ in the *original SV with spaces. Naughty!
654
655 my $orig = my $format = "^<<<<< ~~\n";
656 my $abc = "abc";
657 formline $format, $abc;
658 $^A ='';
659 ::is $format, $orig, "RT91032: don't overwrite orig format string";
660
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661 # check that ~ and ~~ are displayed correctly as whitespace,
662 # under the influence of various different types of border
663
664 for my $n (1,2) {
665 for my $lhs (' ', 'Y', '^<<<', '^|||', '^>>>') {
666 for my $rhs ('', ' ', 'Z', '^<<<', '^|||', '^>>>') {
667 my $fmt = "^<B$lhs" . ('~' x $n) . "$rhs\n";
668 my $sfmt = ($fmt =~ s/~/ /gr);
669 my ($a, $bc, $stop);
670 ($a, $bc, $stop) = ('a', 'bc', 's');
671 # $stop is to stop '~~' deleting the whole line
672 formline $sfmt, $stop, $a, $bc;
673 my $exp = $^A;
674 $^A = '';
675 ($a, $bc, $stop) = ('a', 'bc', 's');
676 formline $fmt, $stop, $a, $bc;
677 my $got = $^A;
678 $^A = '';
679 $fmt =~ s/\n/\\n/;
680 ::is($got, $exp, "chop munging: [$fmt]");
681 }
682 }
683 }
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684}
685
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686# check that '~ (delete current line if empty) works when
687# the target gets upgraded to uft8 (and re-allocated) midstream.
688
689{
690 my $format = "\x{100}@~\n"; # format is utf8
691 # this target is not utf8, but will expand (and get reallocated)
692 # when upgraded to utf8.
693 my $orig = "\x80\x81\x82";
694 local $^A = $orig;
695 my $empty = "";
696 formline $format, $empty;
697 is $^A , $orig, "~ and realloc";
698
699 # check similarly that trailing blank removal works ok
700
701 $format = "@<\n\x{100}"; # format is utf8
702 chop $format;
703 $orig = " ";
704 $^A = $orig;
705 formline $format, " ";
706 is $^A, "$orig\n", "end-of-line blanks and realloc";
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707
708 # and check this doesn't overflow the buffer
709
710 local $^A = '';
711 $format = "@* @####\n";
712 $orig = "x" x 100 . "\n";
713 formline $format, $orig, 12345;
714 is $^A, ("x" x 100) . " 12345\n", "\@* doesn't overflow";
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715
716 # make sure it can cope with formats > 64k
717
718 $format = 'x' x 65537;
719 $^A = '';
720 formline $format;
721 # don't use 'is' here, as the diag output will be too long!
722 ok $^A eq $format, ">64K";
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723}
724
3808a683 725
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726SKIP: {
727 skip_if_miniperl('miniperl does not support scalario');
60fe2d11 728 my $buf = "";
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729 open my $fh, ">", \$buf;
730 my $old_fh = select $fh;
731 local $~ = "CmT";
732 write;
733 select $old_fh;
734 close $fh;
735 is $buf, "ok $test\n", "write to duplicated format";
736}
737
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738fresh_perl_like(<<'EOP', qr/^Format STDOUT redefined at/, {stderr => 1}, '#64562 - Segmentation fault with redefined formats and warnings');
739#!./perl
740
741use strict;
742use warnings; # crashes!
743
744format =
745.
746
747write;
748
749format =
750.
751
752write;
753EOP
754
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755fresh_perl_is(<<'EOP', ">ARRAY<\ncrunch_eth\n", {stderr => 1}, '#79532 - formline coerces its arguments');
756use strict;
757use warnings;
758my $zamm = ['crunch_eth'];
759formline $zamm;
760printf ">%s<\n", ref $zamm;
761print "$zamm->[0]\n";
762EOP
763
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764#############################
765## Section 4
766## Add new tests *above* here
767#############################
768
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769# scary format testing from H.Merijn Brand
770
771# Just a complete test for format, including top-, left- and bottom marging
772# and format detection through glob entries
773
7b903762 774if ($^O eq 'VMS' || $^O eq 'MSWin32' || $^O eq 'dos' ||
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775 ($^O eq 'os2' and not eval '$OS2::can_fork')) {
776 $test = curr_test();
777 SKIP: {
778 skip "'|-' and '-|' not supported", $tests - $test + 1;
779 }
780 exit(0);
781}
782
783
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784$^ = "STDOUT_TOP";
785$= = 7; # Page length
786$- = 0; # Lines left
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787my $ps = $^L; $^L = ""; # Catch the page separator
788my $tm = 1; # Top margin (empty lines before first output)
789my $bm = 2; # Bottom marging (empty lines between last text and footer)
790my $lm = 4; # Left margin (indent in spaces)
791
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792# -----------------------------------------------------------------------
793#
794# execute the rest of the script in a child process. The parent reads the
795# output from the child and compares it with <DATA>.
796
797my @data = <DATA>;
798
799select ((select (STDOUT), $| = 1)[0]); # flush STDOUT
800
801my $opened = open FROM_CHILD, "-|";
802unless (defined $opened) {
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803 fail "open gave $!";
804 exit 0;
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805}
806
807if ($opened) {
808 # in parent here
809
6108250c 810 pass 'open';
9ccde9ea 811 my $s = " " x $lm;
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812 while (<FROM_CHILD>) {
813 unless (@data) {
6108250c 814 fail 'too much output';
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815 exit;
816 }
9ccde9ea 817 s/^/$s/;
68ba3c2c 818 my $exp = shift @data;
6108250c 819 is $_, $exp;
9ccde9ea 820 }
68ba3c2c 821 close FROM_CHILD;
6108250c 822 is "@data", "", "correct length of output";
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823 exit;
824}
825
826# in child here
6108250c 827$::NO_ENDING = 1;
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828
829 select ((select (STDOUT), $| = 1)[0]);
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830$tm = "\n" x $tm;
831$= -= $bm + 1; # count one for the trailing "----"
832my $lastmin = 0;
833
834my @E;
835
836sub wryte
837{
838 $lastmin = $-;
839 write;
840 } # wryte;
841
842sub footer
843{
844 $% == 1 and return "";
845
846 $lastmin < $= and print "\n" x $lastmin;
847 print "\n" x $bm, "----\n", $ps;
848 $lastmin = $-;
849 "";
850 } # footer
851
852# Yes, this is sick ;-)
853format TOP =
854@* ~
855@{[footer]}
856@* ~
857$tm
858.
859
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860format ENTRY =
861@ @<<<<~~
862@{(shift @E)||["",""]}
863.
864
865format EOR =
866- -----
867.
868
869sub has_format ($)
870{
871 my $fmt = shift;
872 exists $::{$fmt} or return 0;
873 $^O eq "MSWin32" or return defined *{$::{$fmt}}{FORMAT};
874 open my $null, "> /dev/null" or die;
875 my $fh = select $null;
876 local $~ = $fmt;
877 eval "write";
878 select $fh;
879 $@?0:1;
880 } # has_format
881
d57f9278 882$^ = has_format ("TOP") ? "TOP" : "EMPTY";
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883has_format ("ENTRY") or die "No format defined for ENTRY";
884foreach my $e ( [ map { [ $_, "Test$_" ] } 1 .. 7 ],
885 [ map { [ $_, "${_}tseT" ] } 1 .. 5 ]) {
886 @E = @$e;
887 local $~ = "ENTRY";
888 wryte;
889 has_format ("EOR") or next;
890 local $~ = "EOR";
891 wryte;
892 }
893if (has_format ("EOF")) {
894 local $~ = "EOF";
895 wryte;
896 }
897
898close STDOUT;
899
ea42cebc 900# That was test 48.
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901
902__END__
903
904 1 Test1
905 2 Test2
906 3 Test3
907
908
909 ----
910 \f
911 4 Test4
912 5 Test5
913 6 Test6
914
915
916 ----
917 \f
918 7 Test7
919 - -----
920
921
922
923 ----
924 \f
925 1 1tseT
926 2 2tseT
927 3 3tseT
928
929
930 ----
931 \f
932 4 4tseT
933 5 5tseT
934 - -----