mirror of
https://github.com/rn10950/RetroZilla.git
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102 lines
1.6 KiB
Perl
102 lines
1.6 KiB
Perl
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#!/usr/local/bin/perl
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use strict;
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require "genverifier.pm";
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use genverifier;
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my(@ucs2be_cls);
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my(@ucs2be_st);
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my($ucs2be_ver);
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# We look at the following UCS2 char
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# U+FEFF->ItsMe if it is the first Unicode
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# U+FFFF->Error
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# U+FFFE->Error
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# U+0d0d->Error
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# U+0a0d->Error
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# U+1bxx->Error
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# U+29xx->Error
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# U+2axx->Error
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# U+2bxx->Error
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# U+2cxx->Error
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# U+2dxx->Error
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#
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# In UCS2-Big Endian it will be
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#
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# Ev Od
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# FE FF->ItsMe for the first two bytes
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# FF FF->Error
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# FF FE->Error
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# 0d 0d->Error
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# 0a 0d->Error
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# 1b ->Error
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# 29 ->Error
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# 2a ->Error
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# 2b ->Error
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# 2c ->Error
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# 2d ->Error
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#
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# Now we classified the char
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# 0a:k1
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# 0d:k2
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# 1b:k3
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# 29-2d:k3
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# fe:k4
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# ff:k5
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# others:k0
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#
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@ucs2be_cls = (
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[ 0x0a, 0x0a, 1 ],
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[ 0x0d, 0x0d, 2 ],
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[ 0x1b, 0x1b, 3 ],
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[ 0x29, 0x2d, 3 ],
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[ 0xfe, 0xfe, 4 ],
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[ 0xff, 0xff, 5 ],
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[ 0x00, 0xff, 0 ]
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);
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# For Big Endian
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#
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# 0:k5->3
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# 0:k4->4
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# 0:k1,k2->7
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# 0:k3->1
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# 0:k0->5
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# 3:k4,k5->1
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# 3:*->6
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# 4:k5->2
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# 4:*->6
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# 5:*->6
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# 6:k1,k2->7
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# 6:k3->1
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# 6:k5->8
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# 6:*->5
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# 7:k2->1
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# 7:*->6
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# 8:k4,k5->1
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# 8:*->6
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package genverifier;
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@ucs2be_st = (
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# 0 1 2 3 4 5
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5, 7, 7, 1, 4, 3, # state 0 - Start
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1, 1, 1, 1, 1, 1, # state 1 - Error
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2, 2, 2, 2, 2, 2, # state 2 - ItsMe
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6, 6, 6, 6, 1, 1, # state 3 1st byte got FF
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6, 6, 6, 6, 6, 2, # state 4 1st byte got FE
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6, 6, 6, 6, 6, 6, # state 5 Odd byte
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5, 7, 7, 1, 5, 8, # state 6 Even Byte
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6, 6, 1, 6, 6, 6, # state 7 Got 0A or 0D
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6, 6, 6, 6, 1, 1, # state 8 Got FF
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);
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$ucs2be_ver = genverifier::GenVerifier("UCS2BE", "UTF-16BE",
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\@ucs2be_cls, 6, \@ucs2be_st);
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print $ucs2be_ver;
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