line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
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package Spp::MatchRule; |
2
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3
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2
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2
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35
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use 5.012; |
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2
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7
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4
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2
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2
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23
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no warnings "experimental"; |
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4
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2
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51
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5
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6
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2
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2
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8
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use Exporter; |
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2
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2
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2
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103
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7
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our @ISA = qw(Exporter); |
8
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our @EXPORT = qw(match_rule); |
9
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10
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2
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2
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10
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use Spp::Builtin; |
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2
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13
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2
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235
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11
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2
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2
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417
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use Spp::Core; |
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2
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2
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2
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140
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12
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2
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2
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12
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use Spp::Cursor; |
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2
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3
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2
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5118
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13
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14
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sub match_rule { |
15
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1369
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1369
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0
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1889
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my ($rule, $cursor) = @_; |
16
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1369
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1587
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my ($name, $atom) = @{$rule}; |
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1369
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2336
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17
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1369
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1871
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given ($name) { |
18
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1369
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2036
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when ('Rules') { match_group($atom, $cursor) } |
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229
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377
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19
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1140
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1433
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when ('Group') { match_group($atom, $cursor) } |
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0
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0
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20
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1140
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1658
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when ('Branch') { match_branch($atom, $cursor) } |
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85
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160
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21
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1055
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1315
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when ('Rept') { match_rept($atom, $cursor) } |
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99
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176
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22
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956
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1191
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when ('Look') { match_look($atom, $cursor) } |
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0
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0
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23
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956
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1128
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when ('Cclass') { match_cclass($atom, $cursor) } |
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56
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105
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24
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900
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1054
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when ('Chclass') { match_chclass($atom, $cursor) } |
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58
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120
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25
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842
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1047
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when ('Nchclass') { match_nchclass($atom, $cursor)} |
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0
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0
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26
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842
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1010
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when ('Str') { match_str($atom, $cursor) } |
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76
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130
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27
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766
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911
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when ('Char') { match_char($atom, $cursor) } |
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311
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470
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28
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455
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542
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when ('Assert') { match_assert($atom, $cursor) } |
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6
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18
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29
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449
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586
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when ('Not') { match_not($atom, $cursor) } |
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0
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0
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30
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449
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490
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when ('Till') { match_till($atom, $cursor) } |
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0
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0
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31
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449
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520
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when ('Rtoken') { match_rtoken($atom, $cursor) } |
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50
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103
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32
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399
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482
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when ('Ctoken') { match_ctoken($atom, $cursor) } |
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16
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38
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33
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383
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456
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when ('Ntoken') { match_ntoken($atom, $cursor) } |
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381
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609
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34
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2
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3
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when ('Any') { match_any($atom, $cursor) } |
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2
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5
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35
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0
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0
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when ('Expr') { match_expr($atom, $cursor) } |
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0
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0
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36
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0
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0
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when ('Sym') { match_sym($atom, $cursor) } |
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0
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0
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37
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0
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0
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default { |
38
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0
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0
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error("unknown rule type |$name|!") |
39
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} |
40
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} |
41
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} |
42
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43
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sub match_any { |
44
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2
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2
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0
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5
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my ($any, $cursor) = @_; |
45
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2
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5
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my $char = $cursor->get_char; |
46
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2
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50
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6
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if ($char eq chr(0)) { return False } |
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0
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0
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47
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2
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5
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$cursor->to_next; |
48
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2
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4
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return $char; |
49
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} |
50
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51
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sub match_assert { |
52
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6
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6
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0
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16
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my ($assert, $cursor) = @_; |
53
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6
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11
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given ($assert) { |
54
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6
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11
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when ('^') { |
55
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0
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0
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0
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return True if $cursor->off == 0; |
56
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0
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0
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return False; |
57
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} |
58
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6
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13
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when ('$') { |
59
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6
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50
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17
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return True if $cursor->get_char eq chr(0); |
60
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0
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0
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return False; |
61
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} |
62
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0
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0
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when ('^^') { |
63
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0
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0
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0
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return True if $cursor->pre_char eq "\n"; |
64
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0
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0
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0
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return True if $cursor->off == 0; |
65
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0
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0
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return False; |
66
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} |
67
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0
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0
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when ('$$') { |
68
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0
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0
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0
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return True if $cursor->get_char eq "\n"; |
69
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0
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0
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0
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return True if $cursor->get_char eq chr(0); |
70
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0
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0
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return False; |
71
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} |
72
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0
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0
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default { error("error assert char: <$assert>!") } |
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0
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0
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73
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} |
74
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} |
75
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76
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sub match_group { |
77
|
229
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|
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229
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0
|
317
|
my ($rules, $cursor) = @_; |
78
|
229
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304
|
my $gather = True; |
79
|
229
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|
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279
|
for my $rule (@{$rules}) { |
|
229
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|
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383
|
|
80
|
250
|
|
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356
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my $match = match_rule($rule, $cursor); |
81
|
250
|
100
|
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527
|
return False if is_false($match); |
82
|
32
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73
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$gather = gather_match($gather, $match); |
83
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} |
84
|
11
|
|
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63
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return $gather; |
85
|
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} |
86
|
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87
|
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sub match_branch { |
88
|
85
|
|
|
85
|
0
|
129
|
my ($branch, $cursor) = @_; |
89
|
85
|
|
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195
|
my $cache = $cursor->cache; |
90
|
85
|
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129
|
my $max_match = False; |
91
|
85
|
|
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111
|
my $max_cache = $cache; |
92
|
85
|
|
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101
|
my $max_off = -1; |
93
|
85
|
|
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|
|
106
|
for my $rule (@{$branch}) { |
|
85
|
|
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|
156
|
|
94
|
522
|
|
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|
|
803
|
my $match = match_rule($rule, $cursor); |
95
|
522
|
100
|
|
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|
901
|
if (!is_false($match)) { |
96
|
36
|
100
|
|
|
|
80
|
if ($cursor->off > $max_off) { |
97
|
34
|
|
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63
|
$max_off = $cursor->off; |
98
|
34
|
|
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122
|
$max_cache = $cursor->cache; |
99
|
34
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57
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$max_match = $match; |
100
|
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|
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} |
101
|
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} |
102
|
522
|
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1011
|
$cursor->reset_cache($cache); |
103
|
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|
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} |
104
|
85
|
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|
210
|
$cursor->reset_cache($max_cache); |
105
|
85
|
|
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|
261
|
return $max_match; |
106
|
|
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} |
107
|
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108
|
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sub match_ntoken { |
109
|
381
|
|
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381
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0
|
593
|
my ($name, $cursor) = @_; |
110
|
381
|
|
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|
|
623
|
my $rule = $cursor->{'ns'}{$name}; |
111
|
381
|
|
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|
741
|
my $from = $cursor->off; |
112
|
381
|
|
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|
|
695
|
my $cache = $cursor->cache; |
113
|
381
|
|
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|
615
|
my $match = match_rule($rule, $cursor); |
114
|
381
|
100
|
|
|
|
719
|
return $match if is_bool($match); |
115
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16
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|
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41
|
my $len = $cursor->off - $from; |
116
|
16
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50
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|
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|
41
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if ($len > 0) { |
117
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16
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39
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my $str = substr($cursor->str, $from, $len); |
118
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16
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41
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my $cname = '$' . $name; |
119
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16
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55
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$cursor->{'ns'}{$cname} = ['Str', $str]; |
120
|
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|
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} |
121
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16
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27
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push @{$cache}, $len; |
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16
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38
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122
|
16
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45
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return name_match($name, $match, $cache); |
123
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} |
124
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125
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sub match_ctoken { |
126
|
16
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16
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0
|
29
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my ($name, $cursor) = @_; |
127
|
16
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|
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36
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my $rule = $cursor->{'ns'}{$name}; |
128
|
16
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36
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my $from = $cursor->off; |
129
|
16
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41
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my $match = match_rule($rule, $cursor); |
130
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16
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100
|
|
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|
35
|
return $match if is_bool($match); |
131
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7
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17
|
my $len = $cursor->off - $from; |
132
|
7
|
50
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|
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18
|
if ($len > 0) { |
133
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7
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13
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my $str = substr($cursor->str, $from, $len); |
134
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7
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16
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my $cname = '$' . $name; |
135
|
7
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|
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21
|
$cursor->{'ns'}{$cname} = ['Str', $str]; |
136
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|
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|
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} |
137
|
7
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|
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16
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return $match; |
138
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|
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} |
139
|
|
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140
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sub match_rtoken { |
141
|
50
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|
|
50
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0
|
79
|
my ($name, $cursor) = @_; |
142
|
50
|
|
|
|
|
101
|
my $rule = $cursor->{'ns'}{$name}; |
143
|
50
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|
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|
93
|
my $match = match_rule($rule, $cursor); |
144
|
50
|
100
|
|
|
|
107
|
return False if is_false($match); |
145
|
6
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16
|
return True; |
146
|
|
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|
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} |
147
|
|
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148
|
|
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|
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sub match_not { |
149
|
0
|
|
|
0
|
0
|
0
|
my ($rule, $cursor) = @_; |
150
|
0
|
|
|
|
|
0
|
my $cache = $cursor->cache; |
151
|
0
|
|
|
|
|
0
|
my $match = match_rule($rule, $cursor); |
152
|
0
|
0
|
|
|
|
0
|
if (is_false($match)) { |
153
|
0
|
|
|
|
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0
|
$cursor->reset_cache($cache); |
154
|
0
|
|
|
|
|
0
|
return True; |
155
|
|
|
|
|
|
|
} |
156
|
0
|
|
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|
|
0
|
return False; |
157
|
|
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|
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} |
158
|
|
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|
159
|
|
|
|
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|
|
sub match_till { |
160
|
0
|
|
|
0
|
0
|
0
|
my ($rule, $cursor) = @_; |
161
|
0
|
|
|
|
|
0
|
my @buf = (); |
162
|
0
|
|
|
|
|
0
|
while ($cursor->off < $cursor->len) { |
163
|
0
|
|
|
|
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0
|
my $char = $cursor->get_char; |
164
|
0
|
|
|
|
|
0
|
my $cache = $cursor->cache; |
165
|
0
|
|
|
|
|
0
|
my $match = match_rule($rule, $cursor); |
166
|
0
|
0
|
|
|
|
0
|
if (!is_false($match)) { |
167
|
0
|
|
|
|
|
0
|
my $gather_str = join '', @buf; |
168
|
0
|
|
|
|
|
0
|
return gather_match($gather_str, $match); |
169
|
|
|
|
|
|
|
} |
170
|
0
|
|
|
|
|
0
|
push @buf, $char; |
171
|
0
|
|
|
|
|
0
|
$cursor->reset_cache($cache); |
172
|
0
|
|
|
|
|
0
|
$cursor->to_next; |
173
|
|
|
|
|
|
|
} |
174
|
0
|
|
|
|
|
0
|
return False; |
175
|
|
|
|
|
|
|
} |
176
|
|
|
|
|
|
|
|
177
|
|
|
|
|
|
|
sub match_rept { |
178
|
99
|
|
|
99
|
0
|
148
|
my ($rule, $cursor) = @_; |
179
|
99
|
|
|
|
|
130
|
my $gather = True; |
180
|
99
|
|
|
|
|
120
|
my $time = 0; |
181
|
99
|
|
|
|
|
146
|
my ($rept, $atom) = @{$rule}; |
|
99
|
|
|
|
|
202
|
|
182
|
99
|
|
|
|
|
236
|
my ($min, $max) = get_rept_time($rept); |
183
|
99
|
|
|
|
|
238
|
while ($time != $max) { |
184
|
147
|
|
|
|
|
329
|
my $cache = $cursor->cache; |
185
|
147
|
|
|
|
|
340
|
my $match = match_rule($atom, $cursor); |
186
|
147
|
100
|
|
|
|
324
|
if (is_false($match)) { |
187
|
99
|
100
|
|
|
|
294
|
return False if $time < $min; |
188
|
27
|
|
|
|
|
75
|
$cursor->reset_cache($cache); |
189
|
27
|
|
|
|
|
94
|
return $gather; |
190
|
|
|
|
|
|
|
} |
191
|
48
|
|
|
|
|
80
|
$time++; |
192
|
48
|
|
|
|
|
91
|
$gather = gather_match($gather, $match); |
193
|
|
|
|
|
|
|
} |
194
|
0
|
|
|
|
|
0
|
return $gather; |
195
|
|
|
|
|
|
|
} |
196
|
|
|
|
|
|
|
|
197
|
|
|
|
|
|
|
sub match_look { |
198
|
0
|
|
|
0
|
0
|
0
|
my ($rule, $cursor) = @_; |
199
|
0
|
|
|
|
|
0
|
my ($rept, $atom, $look) = @{$rule}; |
|
0
|
|
|
|
|
0
|
|
200
|
0
|
|
|
|
|
0
|
my ($min, $max) = get_rept_time($rept); |
201
|
0
|
|
|
|
|
0
|
my ($gather, $time) = (True, 0); |
202
|
0
|
|
|
|
|
0
|
while ($time != $max) { |
203
|
0
|
|
|
|
|
0
|
my $cache = $cursor->cache; |
204
|
0
|
|
|
|
|
0
|
my $match = match_rule($atom, $cursor); |
205
|
0
|
0
|
|
|
|
0
|
if (is_false($match)) { |
206
|
0
|
0
|
|
|
|
0
|
return False if $time > $min; |
207
|
0
|
|
|
|
|
0
|
$cursor->reset_cache($cache); |
208
|
0
|
|
|
|
|
0
|
$match = match_rule($look, $cursor); |
209
|
0
|
0
|
|
|
|
0
|
return False if is_false($match); |
210
|
0
|
|
|
|
|
0
|
return gather_match($gather, $match); |
211
|
|
|
|
|
|
|
} |
212
|
0
|
|
|
|
|
0
|
$time++; |
213
|
0
|
|
|
|
|
0
|
$gather = gather_match($gather, $match); |
214
|
0
|
0
|
|
|
|
0
|
if ($time >= $min) { |
215
|
0
|
|
|
|
|
0
|
$cache = $cursor->cache; |
216
|
0
|
|
|
|
|
0
|
$match = match_rule($look, $cursor); |
217
|
0
|
0
|
|
|
|
0
|
if (!is_false($match)) { |
218
|
0
|
|
|
|
|
0
|
return gather_match($gather, $match) |
219
|
|
|
|
|
|
|
} |
220
|
0
|
|
|
|
|
0
|
$cursor->reset_cache($cache); |
221
|
|
|
|
|
|
|
} |
222
|
|
|
|
|
|
|
} |
223
|
0
|
|
|
|
|
0
|
return False; |
224
|
|
|
|
|
|
|
} |
225
|
|
|
|
|
|
|
|
226
|
|
|
|
|
|
|
sub match_str { |
227
|
76
|
|
|
76
|
0
|
120
|
my ($str, $cursor) = @_; |
228
|
76
|
|
|
|
|
195
|
for my $char (split('', $str)) { |
229
|
78
|
100
|
|
|
|
185
|
if ($char ne $cursor->get_char) { return False } |
|
76
|
|
|
|
|
212
|
|
230
|
2
|
|
|
|
|
10
|
$cursor->to_next; |
231
|
|
|
|
|
|
|
} |
232
|
0
|
|
|
|
|
0
|
return $str; |
233
|
|
|
|
|
|
|
} |
234
|
|
|
|
|
|
|
|
235
|
|
|
|
|
|
|
sub match_char { |
236
|
311
|
|
|
311
|
0
|
478
|
my ($char, $cursor) = @_; |
237
|
311
|
100
|
|
|
|
615
|
return False if $char ne $cursor->get_char; |
238
|
10
|
|
|
|
|
28
|
$cursor->to_next; |
239
|
10
|
|
|
|
|
19
|
return $char; |
240
|
|
|
|
|
|
|
} |
241
|
|
|
|
|
|
|
|
242
|
|
|
|
|
|
|
sub match_chclass { |
243
|
58
|
|
|
58
|
0
|
90
|
my ($atoms, $cursor) = @_; |
244
|
58
|
|
|
|
|
130
|
my $char = $cursor->get_char; |
245
|
58
|
|
|
|
|
90
|
for my $atom (@{$atoms}) { |
|
58
|
|
|
|
|
119
|
|
246
|
163
|
100
|
|
|
|
282
|
if (match_catom($atom, $char)) { |
247
|
20
|
|
|
|
|
72
|
$cursor->to_next; |
248
|
20
|
|
|
|
|
63
|
return $char; |
249
|
|
|
|
|
|
|
} |
250
|
|
|
|
|
|
|
} |
251
|
38
|
|
|
|
|
93
|
return False; |
252
|
|
|
|
|
|
|
} |
253
|
|
|
|
|
|
|
|
254
|
|
|
|
|
|
|
sub match_nchclass { |
255
|
0
|
|
|
0
|
0
|
0
|
my ($atoms, $cursor) = @_; |
256
|
0
|
|
|
|
|
0
|
my $char = $cursor->get_char; |
257
|
0
|
0
|
|
|
|
0
|
return False if $char eq chr(0); |
258
|
0
|
|
|
|
|
0
|
for my $atom (@{$atoms}) { |
|
0
|
|
|
|
|
0
|
|
259
|
0
|
0
|
|
|
|
0
|
return False if match_catom($atom, $char); |
260
|
|
|
|
|
|
|
} |
261
|
0
|
|
|
|
|
0
|
$cursor->to_next; |
262
|
0
|
|
|
|
|
0
|
return $char; |
263
|
|
|
|
|
|
|
} |
264
|
|
|
|
|
|
|
|
265
|
|
|
|
|
|
|
sub match_catom { |
266
|
163
|
|
|
163
|
0
|
254
|
my ($atom, $char) = @_; |
267
|
163
|
|
|
|
|
195
|
my ($name, $value) = @{$atom}; |
|
163
|
|
|
|
|
251
|
|
268
|
163
|
|
|
|
|
213
|
given ($name) { |
269
|
163
|
|
|
|
|
233
|
when ("Range") { match_range($value, $char) } |
|
0
|
|
|
|
|
0
|
|
270
|
163
|
|
|
|
|
208
|
when ("Cclass") { is_match_cclass($value, $char) } |
|
40
|
|
|
|
|
69
|
|
271
|
123
|
|
|
|
|
158
|
when ("Char") { return $value eq $char } |
|
123
|
|
|
|
|
339
|
|
272
|
|
|
|
|
|
|
} |
273
|
|
|
|
|
|
|
} |
274
|
|
|
|
|
|
|
|
275
|
|
|
|
|
|
|
sub match_cclass { |
276
|
56
|
|
|
56
|
0
|
90
|
my ($cclass, $cursor) = @_; |
277
|
56
|
|
|
|
|
129
|
my $char = $cursor->get_char; |
278
|
56
|
100
|
|
|
|
140
|
return False if $char eq chr(0); |
279
|
47
|
100
|
|
|
|
87
|
if (is_match_cclass($cclass, $char)) { |
280
|
9
|
|
|
|
|
31
|
$cursor->to_next; |
281
|
9
|
|
|
|
|
30
|
return $char; |
282
|
|
|
|
|
|
|
} |
283
|
38
|
|
|
|
|
96
|
return False; |
284
|
|
|
|
|
|
|
} |
285
|
|
|
|
|
|
|
|
286
|
|
|
|
|
|
|
sub is_match_cclass { |
287
|
87
|
|
|
87
|
0
|
150
|
my ($cchar, $char) = @_; |
288
|
87
|
|
|
|
|
112
|
given ($cchar) { |
289
|
87
|
|
|
|
|
141
|
when ('a') { return is_alpha($char) } |
|
40
|
|
|
|
|
136
|
|
290
|
47
|
|
|
|
|
70
|
when ('A') { return !is_alpha($char) } |
|
0
|
|
|
|
|
0
|
|
291
|
47
|
|
|
|
|
64
|
when ('d') { return is_digit($char) } |
|
13
|
|
|
|
|
37
|
|
292
|
34
|
|
|
|
|
52
|
when ('D') { return !is_digit($char) } |
|
0
|
|
|
|
|
0
|
|
293
|
34
|
|
|
|
|
48
|
when ('h') { return is_hspace($char) } |
|
0
|
|
|
|
|
0
|
|
294
|
34
|
|
|
|
|
46
|
when ('H') { return !is_hspace($char) } |
|
0
|
|
|
|
|
0
|
|
295
|
34
|
|
|
|
|
67
|
when ('l') { return is_lower($char) } |
|
0
|
|
|
|
|
0
|
|
296
|
34
|
|
|
|
|
47
|
when ('L') { return !is_lower($char) } |
|
0
|
|
|
|
|
0
|
|
297
|
34
|
|
|
|
|
53
|
when ('s') { return is_space($char) } |
|
34
|
|
|
|
|
86
|
|
298
|
0
|
|
|
|
|
0
|
when ('S') { return !is_space($char) } |
|
0
|
|
|
|
|
0
|
|
299
|
0
|
|
|
|
|
0
|
when ('u') { return is_upper($char) } |
|
0
|
|
|
|
|
0
|
|
300
|
0
|
|
|
|
|
0
|
when ('U') { return !is_upper($char) } |
|
0
|
|
|
|
|
0
|
|
301
|
0
|
|
|
|
|
0
|
when ('v') { return is_vspace($char) } |
|
0
|
|
|
|
|
0
|
|
302
|
0
|
|
|
|
|
0
|
when ('V') { return !is_vspace($char) } |
|
0
|
|
|
|
|
0
|
|
303
|
0
|
|
|
|
|
0
|
when ('w') { return is_words($char) } |
|
0
|
|
|
|
|
0
|
|
304
|
0
|
|
|
|
|
0
|
when ('W') { return !is_words($char) } |
|
0
|
|
|
|
|
0
|
|
305
|
0
|
|
|
|
|
0
|
when ('x') { return is_xdigit($char) } |
|
0
|
|
|
|
|
0
|
|
306
|
0
|
|
|
|
|
0
|
when ('X') { return !is_xdigit($char) } |
|
0
|
|
|
|
|
0
|
|
307
|
|
|
|
|
|
|
} |
308
|
|
|
|
|
|
|
} |
309
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
sub match_range { |
311
|
0
|
|
|
0
|
0
|
0
|
my ($range, $char) = @_; |
312
|
0
|
|
|
|
|
0
|
my ($from, $to) = @{$range}; |
|
0
|
|
|
|
|
0
|
|
313
|
0
|
|
0
|
|
|
0
|
return ($from le $char && $char le $to); |
314
|
|
|
|
|
|
|
} |
315
|
|
|
|
|
|
|
|
316
|
|
|
|
|
|
|
sub match_expr { |
317
|
0
|
|
|
0
|
0
|
0
|
my ($expr, $cursor) = @_; |
318
|
0
|
|
|
|
|
0
|
my $atom = eval_expr($expr, $cursor); |
319
|
0
|
|
|
|
|
0
|
return match_atom($atom, $cursor); |
320
|
|
|
|
|
|
|
} |
321
|
|
|
|
|
|
|
|
322
|
|
|
|
|
|
|
sub match_sym { |
323
|
0
|
|
|
0
|
0
|
0
|
my ($name, $cursor) = @_; |
324
|
0
|
|
|
|
|
0
|
my $value = eval_sym($name, $cursor); |
325
|
0
|
|
|
|
|
0
|
return match_atom($value, $cursor); |
326
|
|
|
|
|
|
|
} |
327
|
|
|
|
|
|
|
|
328
|
|
|
|
|
|
|
sub match_atom { |
329
|
0
|
|
|
0
|
0
|
0
|
my ($atom, $cursor) = @_; |
330
|
0
|
0
|
|
|
|
0
|
return $atom if is_bool($atom); |
331
|
0
|
|
|
|
|
0
|
my ($name, $value) = @{$atom}; |
|
0
|
|
|
|
|
0
|
|
332
|
0
|
0
|
|
|
|
0
|
return False if len($value) == 0; |
333
|
0
|
|
|
|
|
0
|
given ($name) { |
334
|
0
|
|
|
|
|
0
|
when ('Array') { |
335
|
0
|
|
|
|
|
0
|
return match_branch($value, $cursor) |
336
|
|
|
|
|
|
|
} |
337
|
0
|
|
|
|
|
0
|
when ('Str') { |
338
|
0
|
|
|
|
|
0
|
return match_str($value, $cursor) |
339
|
|
|
|
|
|
|
} |
340
|
|
|
|
|
|
|
} |
341
|
|
|
|
|
|
|
} |
342
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
sub name_match { |
344
|
16
|
|
|
16
|
0
|
37
|
my ($name, $match, $pos) = @_; |
345
|
16
|
50
|
|
|
|
37
|
if (is_true($match)) { return $match } |
|
0
|
|
|
|
|
0
|
|
346
|
16
|
100
|
|
|
|
41
|
if (is_atom($match)) { return [$name, [$match], $pos] } |
|
1
|
|
|
|
|
4
|
|
347
|
15
|
|
|
|
|
58
|
return [$name, $match, $pos]; |
348
|
|
|
|
|
|
|
} |
349
|
|
|
|
|
|
|
|
350
|
|
|
|
|
|
|
sub gather_match { |
351
|
80
|
|
|
80
|
0
|
149
|
my ($gather, $match) = @_; |
352
|
80
|
100
|
|
|
|
152
|
return $gather if is_true($match); |
353
|
67
|
100
|
|
|
|
137
|
return $match if is_true($gather); |
354
|
29
|
100
|
|
|
|
66
|
if (is_str($match)) { |
355
|
22
|
100
|
|
|
|
47
|
return $gather . $match if is_str($gather); |
356
|
6
|
|
|
|
|
18
|
return $gather; |
357
|
|
|
|
|
|
|
} |
358
|
7
|
50
|
|
|
|
23
|
if (is_str($gather)) { return $match } |
|
0
|
|
|
|
|
0
|
|
359
|
7
|
100
|
|
|
|
37
|
if (is_atom($gather)) { |
360
|
6
|
100
|
|
|
|
13
|
return [$gather, $match] if is_atom($match); |
361
|
3
|
|
|
|
|
10
|
return [$gather, @{$match}]; |
|
3
|
|
|
|
|
15
|
|
362
|
|
|
|
|
|
|
} |
363
|
1
|
50
|
|
|
|
5
|
return [@{$gather}, $match] if is_atom($match); |
|
1
|
|
|
|
|
5
|
|
364
|
0
|
|
|
|
|
|
return [@{$gather}, @{$match}]; |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
365
|
|
|
|
|
|
|
} |
366
|
|
|
|
|
|
|
|
367
|
|
|
|
|
|
|
sub eval_atom { |
368
|
0
|
|
|
0
|
0
|
|
my ($atom, $cursor) = @_; |
369
|
0
|
|
|
|
|
|
my ($name, $value) = @{$atom}; |
|
0
|
|
|
|
|
|
|
370
|
0
|
|
|
|
|
|
given ($name) { |
371
|
0
|
|
|
|
|
|
when ('Str') { return $atom } |
|
0
|
|
|
|
|
|
|
372
|
0
|
|
|
|
|
|
when ('Sym') { return eval_sym($value, $cursor) } |
|
0
|
|
|
|
|
|
|
373
|
0
|
|
|
|
|
|
when ('Expr') { return eval_expr($value, $cursor) } |
|
0
|
|
|
|
|
|
|
374
|
0
|
|
|
|
|
|
when ('Array') { return eval_array($value, $cursor) } |
|
0
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
} |
376
|
|
|
|
|
|
|
} |
377
|
|
|
|
|
|
|
|
378
|
|
|
|
|
|
|
sub eval_sym { |
379
|
0
|
|
|
0
|
0
|
|
my ($name, $cursor) = @_; |
380
|
0
|
0
|
|
|
|
|
if (exists $cursor->{'ns'}{$name}) { |
381
|
0
|
|
|
|
|
|
return $cursor->{'ns'}{$name}; |
382
|
|
|
|
|
|
|
} |
383
|
0
|
|
|
|
|
|
$cursor->error("variable not define: <$name>."); |
384
|
|
|
|
|
|
|
} |
385
|
|
|
|
|
|
|
|
386
|
|
|
|
|
|
|
sub eval_expr { |
387
|
0
|
|
|
0
|
0
|
|
my ($expr, $cursor) = @_; |
388
|
0
|
|
|
|
|
|
my $name = shift @{$expr}; |
|
0
|
|
|
|
|
|
|
389
|
0
|
|
|
|
|
|
given ($name) { |
390
|
0
|
|
|
|
|
|
when ('push') { eval_push($expr, $cursor) } |
|
0
|
|
|
|
|
|
|
391
|
0
|
|
|
|
|
|
when ('my') { eval_my($expr, $cursor) } |
|
0
|
|
|
|
|
|
|
392
|
0
|
|
|
|
|
|
when ('say') { eval_say($expr, $cursor) } |
|
0
|
|
|
|
|
|
|
393
|
0
|
|
|
|
|
|
default { |
394
|
0
|
|
|
|
|
|
$cursor->error("not implement action: <$name>."); |
395
|
|
|
|
|
|
|
} |
396
|
|
|
|
|
|
|
} |
397
|
|
|
|
|
|
|
} |
398
|
|
|
|
|
|
|
|
399
|
|
|
|
|
|
|
sub eval_array { |
400
|
0
|
|
|
0
|
0
|
|
my ($array, $cursor) = @_; |
401
|
0
|
0
|
|
|
|
|
if (len($array) == 0) { |
402
|
0
|
|
|
|
|
|
return ['Array', $array] |
403
|
|
|
|
|
|
|
} |
404
|
0
|
|
|
|
|
|
my $atoms = eval_atoms($array, $cursor); |
405
|
0
|
|
|
|
|
|
return ['Array', $atoms]; |
406
|
|
|
|
|
|
|
} |
407
|
|
|
|
|
|
|
|
408
|
|
|
|
|
|
|
sub eval_push { |
409
|
0
|
|
|
0
|
0
|
|
my ($atoms, $cursor) = @_; |
410
|
0
|
|
|
|
|
|
my $sym = $atoms->[0]; |
411
|
0
|
0
|
|
|
|
|
if (is_sym($sym)) { |
412
|
0
|
|
|
|
|
|
my $eval_atoms = eval_atoms($atoms, $cursor); |
413
|
0
|
|
|
|
|
|
my ($array, $element) = @{$eval_atoms}; |
|
0
|
|
|
|
|
|
|
414
|
0
|
|
|
|
|
|
push @{ $array->[1] }, $element; |
|
0
|
|
|
|
|
|
|
415
|
0
|
|
|
|
|
|
my $name = $sym->[1]; |
416
|
0
|
|
|
|
|
|
$cursor->{'ns'}{$name} = $array; |
417
|
0
|
|
|
|
|
|
return True; |
418
|
|
|
|
|
|
|
} |
419
|
0
|
|
|
|
|
|
$cursor->error('push only accept array symbol!'); |
420
|
|
|
|
|
|
|
} |
421
|
|
|
|
|
|
|
|
422
|
|
|
|
|
|
|
sub eval_my { |
423
|
0
|
|
|
0
|
0
|
|
my ($atoms, $cursor) = @_; |
424
|
0
|
|
|
|
|
|
my $sym = $atoms->[0]; |
425
|
0
|
|
|
|
|
|
my $value = eval_atom($atoms->[1], $cursor); |
426
|
0
|
0
|
|
|
|
|
if (is_sym($sym)) { |
427
|
0
|
|
|
|
|
|
my $name = $sym->[1]; |
428
|
0
|
|
|
|
|
|
$cursor->{'ns'}{$name} = $value; |
429
|
0
|
|
|
|
|
|
return True; |
430
|
|
|
|
|
|
|
} |
431
|
0
|
|
|
|
|
|
$cursor->error('only assign symbol!'); |
432
|
|
|
|
|
|
|
} |
433
|
|
|
|
|
|
|
|
434
|
|
|
|
|
|
|
sub eval_say { |
435
|
0
|
|
|
0
|
0
|
|
my ($atoms, $cursor) = @_; |
436
|
0
|
|
|
|
|
|
my $eval_atoms = eval_atoms($atoms, $cursor); |
437
|
0
|
|
|
|
|
|
my $str = $eval_atoms->[0]; |
438
|
0
|
0
|
|
|
|
|
if (is_atom_str($str)) { |
439
|
0
|
|
|
|
|
|
say $str->[1]; |
440
|
0
|
|
|
|
|
|
return True; |
441
|
|
|
|
|
|
|
} |
442
|
0
|
|
|
|
|
|
my $type = $str->[0]; |
443
|
0
|
|
|
|
|
|
$cursor->error("say only accept Str: <$type>"); |
444
|
|
|
|
|
|
|
} |
445
|
|
|
|
|
|
|
|
446
|
|
|
|
|
|
|
sub eval_atoms { |
447
|
0
|
|
|
0
|
0
|
|
my ($atoms, $cursor) = @_; |
448
|
0
|
|
|
|
|
|
return [ map { eval_atom($_, $cursor) } @{$atoms} ]; |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
449
|
|
|
|
|
|
|
} |
450
|
|
|
|
|
|
|
|
451
|
|
|
|
|
|
|
1; |