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# -*- mode: perl; coding: utf-8 -*- |
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package YATT::Class::ArrayScanner; |
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use strict; |
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use warnings qw(FATAL all NONFATAL misc); |
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use base qw(YATT::Class::Configurable); |
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use YATT::Fields qw(^cf_array cf_index); |
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sub readable { |
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(my MY $path, my ($more)) = @_; |
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return unless defined $path->{cf_index}; |
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$path->{cf_index} + ($more || 0) < @{$path->{cf_array}}; |
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} |
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sub read { |
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(my MY $path) = @_; |
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return undef unless defined $path->{cf_index}; |
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my $value = $path->{cf_array}->[$path->{cf_index}]; |
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$path->after_read($path->{cf_index}++); |
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$value; |
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} |
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sub after_read {} |
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sub after_next {} |
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sub current { |
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(my MY $path, my ($offset)) = @_; |
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return undef unless defined $path->{cf_index}; |
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$path->{cf_array}->[$path->{cf_index} + ($offset || 0)] |
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} |
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sub next { |
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(my MY $path) = @_; |
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return undef unless defined $path->{cf_index}; |
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my $val = $path->{cf_array}->[$path->{cf_index}++]; |
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$path->after_next; |
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$val; |
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} |
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sub go_next { |
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(my MY $path) = @_; |
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return undef unless defined $path->{cf_index}; |
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$path->{cf_index}++; |
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$path->after_next; |
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$path; |
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} |
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sub peek { |
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(my MY $path, my ($pos)) = @_; |
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$path->{cf_array}[$pos]; |
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} |
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1; |