mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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233 lines
5.7 KiB
Perl
233 lines
5.7 KiB
Perl
#!/usr/local/bin/perl
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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use strict;
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require "genverifier.pm";
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use genverifier;
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my(@utf8_cls);
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my(@utf8_st);
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my($utf8_ver);
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#
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#
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# UTF8 encode the UCS4 into 1 to 6 bytes
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#
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# 1 byte 00 00 00 00 00 00 00 7f
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# 2 bytes 00 00 00 80 00 00 07 ff
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# 3 bytes 00 00 08 00 00 00 ff ff
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# 4 bytes 00 01 00 00 00 1f ff ff
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# 5 bytes 00 20 00 00 03 ff ff ff
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# 6 bytes 04 00 00 00 7f ff ff ff
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#
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# Howerver, since Surrogate area should not be encoded into UTF8 as
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# a Surrogate pair, we can remove the surrogate area from UTF8
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#
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# 1 byte 00 00 00 00 00 00 00 7f
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# 2 bytes 00 00 00 80 00 00 07 ff
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# 3 bytes 00 00 08 00 00 00 d7 ff
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# 00 00 e0 00 00 00 ff ff
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# 4 bytes 00 01 00 00 00 1f ff ff
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# 5 bytes 00 20 00 00 03 ff ff ff
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# 6 bytes 04 00 00 00 7f ff ff ff
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#
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# Now we break them into 6 bits group for 2-6 bytes UTF8
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#
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# 1 byte 00 7f
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# 2 bytes 02 00 1f 3f
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# 3 bytes 00 20 00 0d 1f 3f
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# 0e 00 00 0f 3f 3f
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# 4 bytes 00 20 00 00 07 3f 3f 3f
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# 5 bytes 00 08 00 00 00 03 3f 3f 3f 3f
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# 6 bytes 00 04 00 00 00 00 01 3f 3f 3f 3f 3f
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#
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# Break down more
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#
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# 1 byte 00 7f
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# 2 bytes 02 00 1f 3f
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# 3 bytes 00 20 00 00 3f 3f
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# 01 00 00 0c 3f 3f
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# 0d 00 00 0d 1f 3f
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# 0e 00 00 0f 3f 3f
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# 4 bytes 00 20 00 00 00 3f 3f 3f
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# 01 00 00 00 07 3f 3f 3f
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# 5 bytes 00 08 00 00 00 00 3f 3f 3f 3f
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# 01 00 00 00 00 03 3f 3f 3f 3f
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# 6 bytes 00 04 00 00 00 00 00 3f 3f 3f 3f 3f
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# 01 00 00 00 00 00 01 3f 3f 3f 3f 3f
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#
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# Now, add
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# c0 to the lead byte of 2 bytes UTF8
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# e0 to the lead byte of 3 bytes UTF8
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# f0 to the lead byte of 4 bytes UTF8
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# f8 to the lead byte of 5 bytes UTF8
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# fc to the lead byte of 6 bytes UTF8
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# 80 to the trail bytes of 2 - 6 bytes UTF8
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#
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# 1 byte 00 7f
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# 2 bytes c2 80 df bf
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# 3 bytes e0 a0 80 e0 bf bf
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# e1 80 80 ec bf bf
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# ed 80 80 ed 9f bf
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# ee 80 80 ef bf bf
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# 4 bytes f0 a0 80 80 f0 bf bf bf
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# f1 80 80 80 f7 bf bf bf
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# 5 bytes f8 88 80 80 80 f8 bf bf bf bf
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# f9 80 80 80 80 fb bf bf bf bf
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# 6 bytes fc 84 80 80 80 80 fc bf bf bf bf bf
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# fd 80 80 80 80 80 fd bf bf bf bf bf
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#
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#
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# Now we can construct our state diagram
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#
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# 0:0x00,0x0e,0x0f,0x1b->Error
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# 0:[0-0x7f]->0
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# 0:fd->3
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# 0:fc->4
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# 0:[f9-fb]->5
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# 0:f8->6
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# 0:[f1-f7]->7
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# 0:f0->8
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# 0:[e1-ecee-ef]->9
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# 0:e0->10
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# 0:ed->11
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# 0:[c2-df]->12
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# 0:*->Error
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# 3:[80-bf]->5
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# 3:*->Error
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# 4:[84-bf]->5
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# 4:*->Error
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# 5:[80-bf]->7
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# 5:*->Error
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# 6:[88-bf]->7
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# 6:*->Error
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# 7:[80-bf]->9
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# 7:*->Error
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# 8:[a0-bf]->9
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# 8:*->Error
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# 9:[80-bf]->12
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# 9:*->Error
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# 10:[a0-bf]->12
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# 10:*->Error
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# 11:[80-9f]->12
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# 11:*->Error
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# 12:[80-bf]->0
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# 12:*->Error
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#
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# Now, we classified chars into class
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#
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# 00,0e,0f,1b:k0
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# 01-0d,10-1a,1c-7f:k1
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# 80-83:k2
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# 84-87:k3
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# 88-9f:k4
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# a0-bf:k5
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# c0-c1:k0
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# c2-df:k6
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# e0:k7
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# e1-ec:k8
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# ed:k9
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# ee-ef:k8
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# f0:k10
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# f1-f7:k11
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# f8:k12
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# f9-fb:k13
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# fc:k14
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# fd:k15
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# fe-ff:k0
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#
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# Now, let's put them into array form
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@utf8_cls = (
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[ 0x00 , 0x00 , 1 ],
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[ 0x0e , 0x0f , 0 ],
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[ 0x1b , 0x1b , 0 ],
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[ 0x01 , 0x0d , 1 ],
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[ 0x10 , 0x1a , 1 ],
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[ 0x1c , 0x7f , 1 ],
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[ 0x80 , 0x83 , 2 ],
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[ 0x84 , 0x87 , 3 ],
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[ 0x88 , 0x9f , 4 ],
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[ 0xa0 , 0xbf , 5 ],
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[ 0xc0 , 0xc1 , 0 ],
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[ 0xc2 , 0xdf , 6 ],
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[ 0xe0 , 0xe0 , 7 ],
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[ 0xe1 , 0xec , 8 ],
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[ 0xed , 0xed , 9 ],
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[ 0xee , 0xef , 8 ],
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[ 0xf0 , 0xf0 , 10 ],
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[ 0xf1 , 0xf7 , 11 ],
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[ 0xf8 , 0xf8 , 12 ],
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[ 0xf9 , 0xfb , 13 ],
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[ 0xfc , 0xfc , 14 ],
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[ 0xfd , 0xfd , 15 ],
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[ 0xfe , 0xff , 0 ],
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);
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#
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# Now, we write the state diagram in class
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#
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# 0:k0->Error
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# 0:k1->0
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# 0:k15->3
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# 0:k14->4
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# 0:k13->5
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# 0:k12->6
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# 0:k11->7
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# 0:k10->8
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# 0:k8->9
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# 0:k7->10
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# 0:k9->11
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# 0:k6->12
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# 0:*->Error
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# 3:k2,k3,k4,k5->5
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# 3:*->Error
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# 4:k3,k4,k5->5
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# 4:*->Error
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# 5:k2,k3,k4,k5->7
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# 5:*->Error
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# 6:k4,k5->7
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# 6:*->Error
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# 7:k2,k3,k4,k5->9
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# 7:*->Error
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# 8:k5->9
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# 8:*->Error
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# 9:k2,k3,k4,k5->12
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# 9:*->Error
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# 10:k5->12
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# 10:*->Error
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# 11:k2,k3,k4->12
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# 11:*->Error
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# 12:k2,k3,k4,k5->0
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# 12:*->Error
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#
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# Now, let's put them into array
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#
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package genverifier;
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@utf8_st = (
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# 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
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1, 0, 1, 1, 1, 1,12,10, 9,11, 8, 7, 6, 5, 4, 3, # state 0 Start
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 1 Error
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, # state 2 ItsMe
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1, 1, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 3
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1, 1, 1, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 4
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1, 1, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 5
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1, 1, 1, 1, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 6
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1, 1, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 7
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1, 1, 1, 1, 1, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 8
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1, 1,12,12,12,12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 9
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1, 1, 1, 1, 1,12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 10
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1, 1,12,12,12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 11
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1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, # state 12
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);
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$utf8_ver = genverifier::GenVerifier("UTF8", "UTF-8", \@utf8_cls, 16, \@utf8_st);
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print $utf8_ver;
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