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[perl5.git] / t / op / utf8decode.t
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1#!./perl
2
3BEGIN {
4 chdir 't' if -d 't';
5 @INC = '../lib';
6}
7
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8no utf8; # this test contains raw 8-bit data on purpose; don't switch to \x{}
9
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10print "1..78\n";
11
12my $test = 1;
13
14# This table is based on Markus Kuhn's UTF-8 Decode Stress Tester,
15# http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt,
16# version dated 2000-09-02.
17
18# Note the \0 instead of a raw zero byte in 2.1.1: for example
19# GNU patch v2.1 has "issues" with raw zero bytes.
20
21my @MK = split(/\n/, <<__EOMK__);
221 Correct UTF-8
231.1.1 y "κόσμε" - 11 ce:ba:e1:bd:b9:cf:83:ce:bc:ce:b5 5
242 Boundary conditions
252.1 First possible sequence of certain length
262.1.1 y "\0" 0 1 00 1
272.1.2 y "\80" 80 2 c2:80 1
282.1.3 y "ࠀ" 800 3 e0:a0:80 1
292.1.4 y "𐀀" 10000 4 f0:90:80:80 1
302.1.5 y "" 200000 5 f8:88:80:80:80 1
312.1.6 y "" 4000000 6 fc:84:80:80:80:80 1
322.2 Last possible sequence of certain length
332.2.1 y "\7f" 7f 1 7f 1
342.2.2 y "߿" 7ff 2 df:bf 1
35# The ffff is illegal unless UTF8_ALLOW_FFFF
362.2.3 n "￿" ffff 3 ef:bf:bf 1 character 0xffff
372.2.4 y "" 1fffff 4 f7:bf:bf:bf 1
382.2.5 y "" 3ffffff 5 fb:bf:bf:bf:bf 1
392.2.6 y "" 7fffffff 6 fd:bf:bf:bf:bf:bf 1
402.3 Other boundary conditions
412.3.1 y "퟿" d7ff 3 ed:9f:bf 1
422.3.2 y "" e000 3 ee:80:80 1
432.3.3 y "�" fffd 3 ef:bf:bd 1
442.3.4 y "􏿿" 10ffff 4 f4:8f:bf:bf 1
452.3.5 y "" 110000 4 f4:90:80:80 1
463 Malformed sequences
473.1 Unexpected continuation bytes
483.1.1 n "\80" - 1 80 - unexpected continuation byte 0x80
493.1.2 n "¿" - 1 bf - unexpected continuation byte 0xbf
503.1.3 n "\80¿" - 2 80:bf - unexpected continuation byte 0x80
513.1.4 n "\80¿\80" - 3 80:bf:80 - unexpected continuation byte 0x80
523.1.5 n "\80¿\80¿" - 4 80:bf:80:bf - unexpected continuation byte 0x80
533.1.6 n "\80¿\80¿\80" - 5 80:bf:80:bf:80 - unexpected continuation byte 0x80
543.1.7 n "\80¿\80¿\80¿" - 6 80:bf:80:bf:80:bf - unexpected continuation byte 0x80
553.1.8 n "\80¿\80¿\80¿\80" - 7 80:bf:80:bf:80:bf:80 - unexpected continuation byte 0x80
563.1.9 n "\80\81\82\83\84\85\86\87\88\89\8a\8b\8c\8d\8e\8f\90\91\92\93\94\95\96\97\98\99\9a\9b\9c\9d\9e\9f ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿" - 64 80:81:82:83:84:85:86:87:88:89:8a:8b:8c:8d:8e:8f:90:91:92:93:94:95:96:97:98:99:9a:9b:9c:9d:9e:9f:a0:a1:a2:a3:a4:a5:a6:a7:a8:a9:aa:ab:ac:ad:ae:af:b0:b1:b2:b3:b4:b5:b6:b7:b8:b9:ba:bb:bc:bd:be:bf - unexpected continuation byte 0x80
573.2 Lonely start characters
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583.2.1 n "À Á Â Ã Ä Å Æ Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ô Õ Ö × Ø Ù Ú Û Ü Ý Þ ß " - 64 c0:20:c1:20:c2:20:c3:20:c4:20:c5:20:c6:20:c7:20:c8:20:c9:20:ca:20:cb:20:cc:20:cd:20:ce:20:cf:20:d0:20:d1:20:d2:20:d3:20:d4:20:d5:20:d6:20:d7:20:d8:20:d9:20:da:20:db:20:dc:20:dd:20:de:20:df:20 - unexpected non-continuation byte 0x20 after start byte 0xc0
593.2.2 n "à á â ã ä å æ ç è é ê ë ì í î ï " - 32 e0:20:e1:20:e2:20:e3:20:e4:20:e5:20:e6:20:e7:20:e8:20:e9:20:ea:20:eb:20:ec:20:ed:20:ee:20:ef:20 - unexpected non-continuation byte 0x20 after start byte 0xe0
603.2.3 n "ð ñ ò ó ô õ ö ÷ " - 16 f0:20:f1:20:f2:20:f3:20:f4:20:f5:20:f6:20:f7:20 - unexpected non-continuation byte 0x20 after start byte 0xf0
613.2.4 n "ø ù ú û " - 8 f8:20:f9:20:fa:20:fb:20 - unexpected non-continuation byte 0x20 after start byte 0xf8
623.2.5 n "ü ý " - 4 fc:20:fd:20 - unexpected non-continuation byte 0x20 after start byte 0xfc
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633.3 Sequences with last continuation byte missing
643.3.1 n "À" - 1 c0 - 1 byte, need 2
653.3.2 n "à\80" - 2 e0:80 - 2 bytes, need 3
663.3.3 n "ð\80\80" - 3 f0:80:80 - 3 bytes, need 4
673.3.4 n "ø\80\80\80" - 4 f8:80:80:80 - 4 bytes, need 5
683.3.5 n "ü\80\80\80\80" - 5 fc:80:80:80:80 - 5 bytes, need 6
693.3.6 n "ß" - 1 df - 1 byte, need 2
703.3.7 n "ï¿" - 2 ef:bf - 2 bytes, need 3
713.3.8 n "÷¿¿" - 3 f7:bf:bf - 3 bytes, need 4
723.3.9 n "û¿¿¿" - 4 fb:bf:bf:bf - 4 bytes, need 5
733.3.10 n "ý¿¿¿¿" - 5 fd:bf:bf:bf:bf - 5 bytes, need 6
743.4 Concatenation of incomplete sequences
421a8bf2 753.4.1 n "Àà\80ð\80\80ø\80\80\80ü\80\80\80\80ßï¿÷¿¿û¿¿¿ý¿¿¿¿" - 30 c0:e0:80:f0:80:80:f8:80:80:80:fc:80:80:80:80:df:ef:bf:f7:bf:bf:fb:bf:bf:bf:fd:bf:bf:bf:bf - unexpected non-continuation byte 0xe0 after start byte 0xc0
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763.5 Impossible bytes
773.5.1 n "þ" - 1 fe - byte 0xfe
783.5.2 n "ÿ" - 1 ff - byte 0xff
793.5.3 n "þþÿÿ" - 4 fe:fe:ff:ff - byte 0xfe
804 Overlong sequences
814.1 Examples of an overlong ASCII character
824.1.1 n "À¯" - 2 c0:af - 2 bytes, need 1
834.1.2 n "à\80¯" - 3 e0:80:af - 3 bytes, need 1
844.1.3 n "ð\80\80¯" - 4 f0:80:80:af - 4 bytes, need 1
854.1.4 n "ø\80\80\80¯" - 5 f8:80:80:80:af - 5 bytes, need 1
864.1.5 n "ü\80\80\80\80¯" - 6 fc:80:80:80:80:af - 6 bytes, need 1
874.2 Maximum overlong sequences
884.2.1 n "Á¿" - 2 c1:bf - 2 bytes, need 1
894.2.2 n "à\9f¿" - 3 e0:9f:bf - 3 bytes, need 2
904.2.3 n "ð\8f¿¿" - 4 f0:8f:bf:bf - 4 bytes, need 3
914.2.4 n "ø\87¿¿¿" - 5 f8:87:bf:bf:bf - 5 bytes, need 4
924.2.5 n "ü\83¿¿¿¿" - 6 fc:83:bf:bf:bf:bf - 6 bytes, need 5
934.3 Overlong representation of the NUL character
944.3.1 n "À\80" - 2 c0:80 - 2 bytes, need 1
954.3.2 n "à\80\80" - 3 e0:80:80 - 3 bytes, need 1
964.3.3 n "ð\80\80\80" - 4 f0:80:80:80 - 4 bytes, need 1
974.3.4 n "ø\80\80\80\80" - 5 f8:80:80:80:80 - 5 bytes, need 1
984.3.5 n "ü\80\80\80\80\80" - 6 fc:80:80:80:80:80 - 6 bytes, need 1
995 Illegal code positions
1005.1 Single UTF-16 surrogates
1015.1.1 n "" - 3 ed:a0:80 - UTF-16 surrogate 0xd800
1025.1.2 n "" - 3 ed:ad:bf - UTF-16 surrogate 0xdb7f
1035.1.3 n "" - 3 ed:ae:80 - UTF-16 surrogate 0xdb80
1045.1.4 n "" - 3 ed:af:bf - UTF-16 surrogate 0xdbff
1055.1.5 n "" - 3 ed:b0:80 - UTF-16 surrogate 0xdc00
1065.1.6 n "" - 3 ed:be:80 - UTF-16 surrogate 0xdf80
1075.1.7 n "" - 3 ed:bf:bf - UTF-16 surrogate 0xdfff
1085.2 Paired UTF-16 surrogates
1095.2.1 n "" - 6 ed:a0:80:ed:b0:80 - UTF-16 surrogate 0xd800
1105.2.2 n "" - 6 ed:a0:80:ed:bf:bf - UTF-16 surrogate 0xd800
1115.2.3 n "" - 6 ed:ad:bf:ed:b0:80 - UTF-16 surrogate 0xdb7f
1125.2.4 n "" - 6 ed:ad:bf:ed:bf:bf - UTF-16 surrogate 0xdb7f
1135.2.5 n "" - 6 ed:ae:80:ed:b0:80 - UTF-16 surrogate 0xdb80
1145.2.6 n "" - 6 ed:ae:80:ed:bf:bf - UTF-16 surrogate 0xdb80
1155.2.7 n "" - 6 ed:af:bf:ed:b0:80 - UTF-16 surrogate 0xdbff
1165.2.8 n "" - 6 ed:af:bf:ed:bf:bf - UTF-16 surrogate 0xdbff
1175.3 Other illegal code positions
1185.3.1 n "￾" - 3 ef:bf:be - byte order mark 0xfffe
119# The ffff is illegal unless UTF8_ALLOW_FFFF
1205.3.2 n "￿" - 3 ef:bf:bf - character 0xffff
121__EOMK__
122
123# 104..181
124{
125 my $WARNCNT;
126 my $id;
127
128 local $SIG{__WARN__} =
129 sub {
421a8bf2 130 print "# $id: @_";
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131 $WARNCNT++;
132 $WARNMSG = "@_";
133 };
134
135 sub moan {
136 print "$id: @_";
137 }
138
139 sub test_unpack_U {
140 $WARNCNT = 0;
141 $WARNMSG = "";
142 unpack('U*', $_[0]);
143 }
144
145 for (@MK) {
146 if (/^(?:\d+(?:\.\d+)?)\s/ || /^#/) {
147 # print "# $_\n";
148 } elsif (/^(\d+\.\d+\.\d+[bu]?)\s+([yn])\s+"(.+)"\s+([0-9a-f]{1,8}|-)\s+(\d+)\s+([0-9a-f]{2}(?::[0-9a-f]{2})*)(?:\s+((?:\d+|-)(?:\s+(.+))?))?$/) {
149 $id = $1;
150 my ($okay, $bytes, $Unicode, $byteslen, $hex, $charslen, $error) =
151 ($2, $3, $4, $5, $6, $7, $8);
152 my @hex = split(/:/, $hex);
153 unless (@hex == $byteslen) {
154 my $nhex = @hex;
155 moan "amount of hex ($nhex) not equal to byteslen ($byteslen)\n";
156 }
157 {
158 use bytes;
159 my $bytesbyteslen = length($bytes);
160 unless ($bytesbyteslen == $byteslen) {
161 moan "bytes length() ($bytesbyteslen) not equal to $byteslen\n";
162 }
163 }
164 if ($okay eq 'y') {
165 test_unpack_U($bytes);
166 if ($WARNCNT) {
167 moan "unpack('U*') false negative\n";
168 print "not ";
169 }
170 } elsif ($okay eq 'n') {
171 test_unpack_U($bytes);
172 if ($WARNCNT == 0 || ($error ne '' && $WARNMSG !~ /$error/)) {
173 moan "unpack('U*') false positive\n";
174 print "not ";
175 }
176 }
177 print "ok $test\n";
178 $test++;
179 } else {
180 moan "unknown format\n";
181 }
182 }
183}