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package Perl::ToPerl6::Utils::PPI; |
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use 5.006001; |
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use strict; |
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use warnings; |
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use Readonly; |
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use Scalar::Util qw< blessed readonly looks_like_number >; |
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use Exporter 'import'; |
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74780
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our $VERSION = '0.03'; |
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#----------------------------------------------------------------------------- |
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our @EXPORT_OK = qw( |
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dscanf |
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is_ppi_expression_or_generic_statement |
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is_ppi_generic_statement |
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is_ppi_statement_subclass |
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is_ppi_simple_statement |
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is_ppi_constant_element |
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is_package_boundary |
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is_module_name |
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is_version_number |
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is_pragma |
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is_ppi_token_word |
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is_ppi_token_operator |
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is_ppi_statement |
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is_ppi_statement_compound |
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is_ppi_token_quotelike_words_like |
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set_string |
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41
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make_ppi_structure_list |
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make_ppi_structure_block |
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); |
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our %EXPORT_TAGS = ( |
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all => \@EXPORT_OK, |
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); |
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#----------------------------------------------------------------------------- |
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# |
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# List the conversion possibilities separately, for now. |
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# I don't think there's much call for fancy modifiers, but I'll keep it in mind. |
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54
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my @conversions = sort { length($b) <=> length($a) } ( |
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'd', 'bd', 'od', 'xd', # Decimals |
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'f', 'ef', 'ff', # Floating-point numbers |
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'o', # Operator |
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'r', 'mr', 'sr', 'tr', # Regular expressions |
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's', 'ds', 'ls', 'ss', 'is', # Strings |
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'v', 'av', 'gv', 'hv', 'sv', # Variables |
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'L', # List |
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'P', # Generic PPI token |
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'W', # Word |
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); |
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my $conversions_re = join '|', @conversions; |
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my %conversion_type = ( |
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d => 'PPI::Token::Number', |
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bd => 'PPI::Token::Number::Binary', |
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od => 'PPI::Token::Number::Octal', |
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xd => 'PPI::Token::Number::Hex', |
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f => 'PPI::Token::Number::Float', |
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ef => 'PPI::Token::Number::Exp', |
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o => 'PPI::Token::Operator', |
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r => 'PPI::Token::Regexp', |
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mr => 'PPI::Token::Regexp::Match', |
76
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sr => 'PPI::Token::Regexp::Substitute', |
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tr => 'PPI::Token::Regexp::Transliterate', |
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s => 'PPI::Token::Quote::Single', |
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ds => 'PPI::Token::Quote::Double', |
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is => 'PPI::Token::Quote::Interpolate', |
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ls => 'PPI::Token::Quote::Literal', |
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ss => 'PPI::Token::Quote::Single', |
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v => 'PPI::Token::Symbol', |
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av => 'PPI::Token::Symbol', # Must be smarter later. |
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gv => 'PPI::Token::Symbol', |
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hv => 'PPI::Token::Symbol', |
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sv => 'PPI::Token::Symbol', |
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L => 'PPI::Structure::List', |
89
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W => 'PPI::Token::Word', |
90
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); |
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92
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sub _retokenize { |
93
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127
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127
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286
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my (@token) = @_; |
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95
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# Regroup the '%%', '%v' and modified conversions. |
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# |
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127
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125
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my @final_token; |
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127
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353
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for ( my $i = 0; $i < @token; $i++ ) { |
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643
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637
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my $v = $token[$i]; |
100
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101
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# If the token is a '%', then look ahead. |
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# If '%' is next, just tack it on to the existing '%' leaving '%%'. |
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# Otherwise, add whatever modifiers we can find from the next, and |
104
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# move on. |
105
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# Failing that, report that we've found a missing modifier. |
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# |
107
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643
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100
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877
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if ( $v eq '%' ) { |
108
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251
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50
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1968
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if ( $token[$i+1] eq '%' ) { |
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100
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109
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0
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0
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push @final_token, $v . $token[$i+1]; |
110
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0
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0
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$i++; |
111
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} |
112
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elsif ( $token[$i+1] =~ s< ^ ($conversions_re) ><>x ) { |
113
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250
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449
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my $conversion = $1; |
114
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250
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50
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460
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if ( $conversion eq 'P' ) { |
115
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0
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0
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$token[$i+1] =~ s< ^ \{ ([^\}]+) \} ><>x; |
116
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0
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0
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my $name = $1; |
117
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0
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0
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0
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$name = 'PPI::' . $name unless $name =~ m< ^ PPI\:: >x; |
118
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0
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0
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$conversion .= $name; |
119
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} |
120
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250
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451
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push @final_token, $v . $conversion; |
121
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250
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50
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945
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$i++ if $token[$i+1] eq ''; |
122
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} |
123
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else { |
124
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1
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10
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die "Unknown conversion '" . $token[$i+1] . "'"; |
125
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} |
126
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} |
127
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else { |
128
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392
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898
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push @final_token, $v; |
129
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} |
130
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} |
131
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126
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752
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return @final_token; |
132
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} |
133
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134
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sub dscanf { |
135
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127
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127
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1
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6794
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my ($format, $options) = @_; |
136
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127
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1058
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my @token = grep { $_ ne '' } split / ( \s+ | \% ) /x, $format; |
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1151
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1853
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137
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127
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321
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@token = _retokenize( @token ); |
138
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139
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126
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185
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my @to_find; |
140
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126
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190
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for my $token ( @token ) { |
141
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638
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100
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1716
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next if $token =~ m< ^ \s+ $ >x; |
142
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143
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382
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50
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1233
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if ( $token eq '%%' ) { |
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100
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144
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0
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0
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push @to_find, { |
145
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type => 'PPI::Token::Operator', |
146
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content => '%' |
147
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}; |
148
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} |
149
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elsif ( $token =~ s< ^ \% ><>x ) { |
150
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250
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50
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421
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if ( exists $conversion_type{$token} ) { |
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0
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151
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push @to_find, { |
152
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250
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706
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type => $conversion_type{$token} |
153
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}; |
154
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} |
155
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elsif ( $token =~ s< ^ P (.+) $ ><>x ) { |
156
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0
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0
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push @to_find, { |
157
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type => $1 |
158
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}; |
159
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} |
160
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else { |
161
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0
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0
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die "Shouldn't happen, but a token type '$token' got here that we don't recognize, bailing."; |
162
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} |
163
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} |
164
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else { |
165
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132
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50
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618
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if ( looks_like_number( $token ) ) { |
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100
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166
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0
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0
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push @to_find, { |
167
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type => 'PPI::Token::Number', |
168
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content => $token |
169
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}; |
170
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} |
171
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elsif ( $token =~ / [^\w] /x ) { |
172
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3
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6
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push @to_find, { |
173
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type => 'PPI::Token::Operator', |
174
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content => $token |
175
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}; |
176
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} |
177
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else { |
178
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129
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561
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push @to_find, { |
179
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type => 'PPI::Token::Word', |
180
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content => $token |
181
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}; |
182
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} |
183
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} |
184
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} |
185
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186
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return sub { |
187
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148
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148
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348
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my $elem = $_[1]; |
188
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189
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148
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200
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for my $match ( @to_find ) { |
190
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155
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100
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1330
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return 0 unless $elem->isa( $match->{type} ); |
191
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return 0 if $match->{content} and |
192
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36
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100
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100
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142
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$elem->content ne $match->{content}; |
193
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9
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44
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$elem = $elem->snext_sibling; |
194
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} |
195
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2
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39
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return 1; |
196
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126
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777
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}; |
197
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} |
198
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199
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#----------------------------------------------------------------------------- |
200
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201
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sub is_ppi_token_word { |
202
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313
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313
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0
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1714
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my ($elem, %map) = @_; |
203
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$elem and |
204
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$elem->isa('PPI::Token::Word') and |
205
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313
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100
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100
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3166
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exists $map{$elem->content}; |
206
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} |
207
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208
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#----------------------------------------------------------------------------- |
209
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210
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sub is_ppi_token_operator { |
211
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61
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61
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0
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533
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my ($elem, %map) = @_; |
212
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$elem and |
213
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$elem->isa('PPI::Token::Operator') and |
214
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61
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100
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66
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|
|
749
|
exists $map{$elem->content}; |
215
|
|
|
|
|
|
|
} |
216
|
|
|
|
|
|
|
|
217
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|
|
#----------------------------------------------------------------------------- |
218
|
|
|
|
|
|
|
|
219
|
|
|
|
|
|
|
sub is_ppi_statement { |
220
|
0
|
|
|
0
|
0
|
0
|
my ($elem, %map) = @_; |
221
|
|
|
|
|
|
|
$elem and |
222
|
|
|
|
|
|
|
$elem->isa('PPI::Statement') and |
223
|
0
|
0
|
0
|
|
|
0
|
exists $map{$elem->first_element->content}; |
224
|
|
|
|
|
|
|
} |
225
|
|
|
|
|
|
|
|
226
|
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|
|
#----------------------------------------------------------------------------- |
227
|
|
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|
|
|
|
|
228
|
|
|
|
|
|
|
sub is_ppi_statement_compound { |
229
|
248
|
|
|
248
|
0
|
518
|
my ($elem, %map) = @_; |
230
|
|
|
|
|
|
|
$elem and |
231
|
|
|
|
|
|
|
$elem->isa('PPI::Statement::Compound') and |
232
|
248
|
50
|
33
|
|
|
2421
|
exists $map{$elem->first_element->content}; |
233
|
|
|
|
|
|
|
} |
234
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|
|
235
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|
|
#----------------------------------------------------------------------------- |
236
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|
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|
|
237
|
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|
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|
|
sub is_ppi_token_quotelike_words_like { |
238
|
15
|
|
|
15
|
0
|
17
|
my ($elem, $qr) = @_; |
239
|
15
|
50
|
33
|
|
|
96
|
$elem and |
240
|
|
|
|
|
|
|
$elem->isa('PPI::Token::QuoteLike::Words') and |
241
|
|
|
|
|
|
|
$elem->content =~ $qr |
242
|
|
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|
|
|
|
} |
243
|
|
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|
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|
|
244
|
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|
|
#----------------------------------------------------------------------------- |
245
|
|
|
|
|
|
|
|
246
|
|
|
|
|
|
|
sub is_module_name { |
247
|
1
|
|
|
1
|
0
|
7
|
my $element = shift; |
248
|
|
|
|
|
|
|
|
249
|
1
|
50
|
|
|
|
7
|
return if not $element; |
250
|
|
|
|
|
|
|
|
251
|
1
|
50
|
|
|
|
11
|
return unless $element->isa('PPI::Token::Word'); |
252
|
1
|
|
|
|
|
6
|
my $content = $element->content; |
253
|
|
|
|
|
|
|
|
254
|
1
|
50
|
|
|
|
10
|
return if looks_like_number($content); |
255
|
1
|
50
|
|
|
|
5
|
return if $content =~ /^v\d+/; |
256
|
|
|
|
|
|
|
|
257
|
1
|
|
|
|
|
22
|
return 1; |
258
|
|
|
|
|
|
|
} |
259
|
|
|
|
|
|
|
|
260
|
|
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|
|
#----------------------------------------------------------------------------- |
261
|
|
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|
|
262
|
|
|
|
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|
|
sub is_version_number { |
263
|
1
|
|
|
1
|
0
|
8
|
my $element = shift; |
264
|
|
|
|
|
|
|
|
265
|
1
|
50
|
|
|
|
7
|
return if not $element; |
266
|
|
|
|
|
|
|
|
267
|
1
|
0
|
33
|
|
|
7
|
return unless $element->isa('PPI::Token::Word') or |
|
|
|
33
|
|
|
|
|
268
|
|
|
|
|
|
|
$element->isa('PPI::Token::Number::Version') or |
269
|
|
|
|
|
|
|
$element->isa('PPI::Token::Number::Float'); |
270
|
1
|
|
|
|
|
5
|
my $content = $element->content; |
271
|
|
|
|
|
|
|
|
272
|
1
|
50
|
|
|
|
11
|
return 1 if looks_like_number($content); |
273
|
1
|
50
|
|
|
|
6
|
return 1 if $content =~ /^v\d+/; |
274
|
|
|
|
|
|
|
|
275
|
1
|
|
|
|
|
9
|
return; |
276
|
|
|
|
|
|
|
} |
277
|
|
|
|
|
|
|
|
278
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
279
|
|
|
|
|
|
|
|
280
|
|
|
|
|
|
|
sub is_pragma { |
281
|
2
|
|
|
2
|
0
|
11
|
my $element = shift; |
282
|
|
|
|
|
|
|
|
283
|
2
|
50
|
|
|
|
13
|
return if not $element; |
284
|
|
|
|
|
|
|
|
285
|
2
|
50
|
|
|
|
11
|
return unless $element->isa('PPI::Token::Word'); |
286
|
2
|
|
|
|
|
8
|
my $content = $element->content; |
287
|
|
|
|
|
|
|
|
288
|
2
|
|
|
|
|
49
|
my %pragma = ( |
289
|
|
|
|
|
|
|
strict => 1, |
290
|
|
|
|
|
|
|
warnings => 1, |
291
|
|
|
|
|
|
|
autodie => 1, |
292
|
|
|
|
|
|
|
base => 1, |
293
|
|
|
|
|
|
|
parent => 1, |
294
|
|
|
|
|
|
|
bigint => 1, |
295
|
|
|
|
|
|
|
bignum => 1, |
296
|
|
|
|
|
|
|
bigrat => 1, |
297
|
|
|
|
|
|
|
constant => 1, |
298
|
|
|
|
|
|
|
mro => 1, |
299
|
|
|
|
|
|
|
encoding => 1, |
300
|
|
|
|
|
|
|
integer => 1, |
301
|
|
|
|
|
|
|
lib => 1, |
302
|
|
|
|
|
|
|
mro => 1, |
303
|
|
|
|
|
|
|
utf8 => 1, |
304
|
|
|
|
|
|
|
vars => 1, |
305
|
|
|
|
|
|
|
); |
306
|
|
|
|
|
|
|
|
307
|
2
|
50
|
|
|
|
16
|
return 1 if exists $pragma{$content}; |
308
|
|
|
|
|
|
|
|
309
|
2
|
|
|
|
|
26
|
return; |
310
|
|
|
|
|
|
|
} |
311
|
|
|
|
|
|
|
|
312
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
313
|
|
|
|
|
|
|
|
314
|
|
|
|
|
|
|
sub set_string { |
315
|
0
|
|
|
0
|
0
|
0
|
my ($elem, $string) = @_; |
316
|
0
|
0
|
|
|
|
0
|
$string = '' unless $string; |
317
|
|
|
|
|
|
|
|
318
|
0
|
|
|
|
|
0
|
my $content = $elem->content; |
319
|
0
|
0
|
|
|
|
0
|
if ($content =~ m/ ^ ['"] /x ) { |
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
320
|
0
|
|
|
|
|
0
|
substr($content, 1, -1) = $string; |
321
|
|
|
|
|
|
|
} |
322
|
|
|
|
|
|
|
elsif ($content =~ m/^qq ./ ) { |
323
|
0
|
|
|
|
|
0
|
substr($content, 4, -1) = $string; |
324
|
|
|
|
|
|
|
} |
325
|
|
|
|
|
|
|
elsif ($content =~ m/^qq./ ) { |
326
|
0
|
|
|
|
|
0
|
substr($content, 3, -1) = $string; |
327
|
|
|
|
|
|
|
} |
328
|
|
|
|
|
|
|
elsif ($content =~ m/^q ./ ) { |
329
|
0
|
|
|
|
|
0
|
substr($content, 3, -1) = $string; |
330
|
|
|
|
|
|
|
} |
331
|
|
|
|
|
|
|
elsif ($content =~ m/^q./ ) { |
332
|
0
|
|
|
|
|
0
|
substr($content, 2, -1) = $string; |
333
|
|
|
|
|
|
|
} |
334
|
|
|
|
|
|
|
else { |
335
|
0
|
|
|
|
|
0
|
die "Unknown string delimiters! >$content<\n"; |
336
|
|
|
|
|
|
|
} |
337
|
0
|
|
|
|
|
0
|
$elem->set_content( $content ); |
338
|
|
|
|
|
|
|
} |
339
|
|
|
|
|
|
|
|
340
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
341
|
|
|
|
|
|
|
|
342
|
|
|
|
|
|
|
sub make_ppi_structure_block { |
343
|
0
|
|
|
0
|
0
|
0
|
my $new_list = PPI::Structure::Block->new( |
344
|
|
|
|
|
|
|
PPI::Token::Structure->new('{'), |
345
|
|
|
|
|
|
|
); |
346
|
0
|
|
|
|
|
0
|
$new_list->{finish} = PPI::Token::Structure->new('}'); |
347
|
|
|
|
|
|
|
|
348
|
0
|
|
|
|
|
0
|
return $new_list; |
349
|
|
|
|
|
|
|
} |
350
|
|
|
|
|
|
|
|
351
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
352
|
|
|
|
|
|
|
|
353
|
|
|
|
|
|
|
sub make_ppi_structure_list { |
354
|
3
|
|
|
3
|
0
|
13
|
my $new_list = PPI::Structure::List->new( |
355
|
|
|
|
|
|
|
PPI::Token::Structure->new('('), |
356
|
|
|
|
|
|
|
); |
357
|
3
|
|
|
|
|
92
|
$new_list->{finish} = PPI::Token::Structure->new(')'); |
358
|
|
|
|
|
|
|
|
359
|
3
|
|
|
|
|
81
|
return $new_list; |
360
|
|
|
|
|
|
|
} |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
363
|
|
|
|
|
|
|
|
364
|
|
|
|
|
|
|
sub is_ppi_generic_statement { |
365
|
0
|
|
|
0
|
1
|
0
|
my $element = shift; |
366
|
|
|
|
|
|
|
|
367
|
0
|
|
|
|
|
0
|
my $element_class = blessed($element); |
368
|
|
|
|
|
|
|
|
369
|
0
|
0
|
|
|
|
0
|
return if not $element_class; |
370
|
0
|
0
|
|
|
|
0
|
return if not $element->isa('PPI::Statement'); |
371
|
|
|
|
|
|
|
|
372
|
0
|
|
|
|
|
0
|
return $element_class eq 'PPI::Statement'; |
373
|
|
|
|
|
|
|
} |
374
|
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
376
|
|
|
|
|
|
|
|
377
|
|
|
|
|
|
|
sub is_ppi_statement_subclass { |
378
|
0
|
|
|
0
|
1
|
0
|
my $element = shift; |
379
|
|
|
|
|
|
|
|
380
|
0
|
|
|
|
|
0
|
my $element_class = blessed($element); |
381
|
|
|
|
|
|
|
|
382
|
0
|
0
|
|
|
|
0
|
return if not $element_class; |
383
|
0
|
0
|
|
|
|
0
|
return if not $element->isa('PPI::Statement'); |
384
|
|
|
|
|
|
|
|
385
|
0
|
|
|
|
|
0
|
return $element_class ne 'PPI::Statement'; |
386
|
|
|
|
|
|
|
} |
387
|
|
|
|
|
|
|
|
388
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
389
|
|
|
|
|
|
|
|
390
|
|
|
|
|
|
|
# Can not use hashify() here because Perl::Critic::Utils already depends on |
391
|
|
|
|
|
|
|
# this module. |
392
|
|
|
|
|
|
|
Readonly::Hash my %SIMPLE_STATEMENT_CLASS => map { $_ => 1 } qw< |
393
|
|
|
|
|
|
|
PPI::Statement |
394
|
|
|
|
|
|
|
PPI::Statement::Break |
395
|
|
|
|
|
|
|
PPI::Statement::Include |
396
|
|
|
|
|
|
|
PPI::Statement::Null |
397
|
|
|
|
|
|
|
PPI::Statement::Package |
398
|
|
|
|
|
|
|
PPI::Statement::Variable |
399
|
|
|
|
|
|
|
>; |
400
|
|
|
|
|
|
|
|
401
|
|
|
|
|
|
|
sub is_ppi_simple_statement { |
402
|
0
|
0
|
|
0
|
1
|
0
|
my $element = shift or return; |
403
|
|
|
|
|
|
|
|
404
|
0
|
0
|
|
|
|
0
|
my $element_class = blessed( $element ) or return; |
405
|
|
|
|
|
|
|
|
406
|
0
|
|
|
|
|
0
|
return $SIMPLE_STATEMENT_CLASS{ $element_class }; |
407
|
|
|
|
|
|
|
} |
408
|
|
|
|
|
|
|
|
409
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
410
|
|
|
|
|
|
|
|
411
|
|
|
|
|
|
|
sub is_ppi_constant_element { |
412
|
0
|
0
|
|
0
|
0
|
0
|
my $element = shift or return; |
413
|
|
|
|
|
|
|
|
414
|
0
|
0
|
|
|
|
0
|
blessed( $element ) or return; |
415
|
|
|
|
|
|
|
|
416
|
|
|
|
|
|
|
# TODO implement here documents once PPI::Token::HereDoc grows the |
417
|
|
|
|
|
|
|
# necessary PPI::Token::Quote interface. |
418
|
|
|
|
|
|
|
return |
419
|
0
|
|
0
|
|
|
0
|
$element->isa( 'PPI::Token::Number' ) |
420
|
|
|
|
|
|
|
|| $element->isa( 'PPI::Token::Quote::Literal' ) |
421
|
|
|
|
|
|
|
|| $element->isa( 'PPI::Token::Quote::Single' ) |
422
|
|
|
|
|
|
|
|| $element->isa( 'PPI::Token::QuoteLike::Words' ) |
423
|
|
|
|
|
|
|
|| ( |
424
|
|
|
|
|
|
|
$element->isa( 'PPI::Token::Quote::Double' ) |
425
|
|
|
|
|
|
|
|| $element->isa( 'PPI::Token::Quote::Interpolate' ) ) |
426
|
|
|
|
|
|
|
&& $element->string() !~ m< (?: \A | [^\\] ) (?: \\\\)* [\$\@] >smx |
427
|
|
|
|
|
|
|
; |
428
|
|
|
|
|
|
|
} |
429
|
|
|
|
|
|
|
|
430
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
431
|
|
|
|
|
|
|
|
432
|
|
|
|
|
|
|
sub is_package_boundary { |
433
|
0
|
|
|
0
|
0
|
0
|
my ($elem) = @_; |
434
|
0
|
0
|
|
|
|
0
|
return unless $elem; |
435
|
0
|
0
|
|
|
|
0
|
return 1 if $elem->isa('PPI::Statement::Package'); |
436
|
0
|
0
|
|
|
|
0
|
return 1 if $elem->isa('PPI::Statement::End'); |
437
|
0
|
0
|
|
|
|
0
|
return 1 if $elem->isa('PPI::Statement::Data'); |
438
|
0
|
0
|
|
|
|
0
|
return 1 if $elem->isa('PPI::Token::Separator'); |
439
|
0
|
|
|
|
|
0
|
return; |
440
|
|
|
|
|
|
|
} |
441
|
|
|
|
|
|
|
|
442
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
443
|
|
|
|
|
|
|
|
444
|
|
|
|
|
|
|
sub is_subroutine_declaration { |
445
|
0
|
|
|
0
|
0
|
0
|
my $element = shift; |
446
|
|
|
|
|
|
|
|
447
|
0
|
0
|
|
|
|
0
|
return if not $element; |
448
|
|
|
|
|
|
|
|
449
|
0
|
0
|
|
|
|
0
|
return 1 if $element->isa('PPI::Statement::Sub'); |
450
|
|
|
|
|
|
|
|
451
|
0
|
0
|
|
|
|
0
|
if ( is_ppi_generic_statement($element) ) { |
452
|
0
|
|
|
|
|
0
|
my $first_element = $element->first_element(); |
453
|
|
|
|
|
|
|
|
454
|
0
|
0
|
0
|
|
|
0
|
return 1 if |
|
|
|
0
|
|
|
|
|
455
|
|
|
|
|
|
|
$first_element |
456
|
|
|
|
|
|
|
and $first_element->isa('PPI::Token::Word') |
457
|
|
|
|
|
|
|
and $first_element->content() eq 'sub'; |
458
|
|
|
|
|
|
|
} |
459
|
|
|
|
|
|
|
|
460
|
0
|
|
|
|
|
0
|
return; |
461
|
|
|
|
|
|
|
} |
462
|
|
|
|
|
|
|
|
463
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
464
|
|
|
|
|
|
|
|
465
|
|
|
|
|
|
|
sub is_in_subroutine { |
466
|
0
|
|
|
0
|
0
|
0
|
my ($element) = @_; |
467
|
|
|
|
|
|
|
|
468
|
0
|
0
|
|
|
|
0
|
return if not $element; |
469
|
0
|
0
|
|
|
|
0
|
return 1 if is_subroutine_declaration($element); |
470
|
|
|
|
|
|
|
|
471
|
0
|
|
|
|
|
0
|
while ( $element = $element->parent() ) { |
472
|
0
|
0
|
|
|
|
0
|
return 1 if is_subroutine_declaration($element); |
473
|
|
|
|
|
|
|
} |
474
|
|
|
|
|
|
|
|
475
|
0
|
|
|
|
|
0
|
return; |
476
|
|
|
|
|
|
|
} |
477
|
|
|
|
|
|
|
|
478
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
479
|
|
|
|
|
|
|
|
480
|
|
|
|
|
|
|
sub get_constant_name_element_from_declaring_statement { |
481
|
0
|
|
|
0
|
0
|
0
|
my ($element) = @_; |
482
|
|
|
|
|
|
|
|
483
|
0
|
|
|
|
|
0
|
warnings::warnif( |
484
|
|
|
|
|
|
|
'deprecated', |
485
|
|
|
|
|
|
|
'Perl::Critic::Utils::PPI::get_constant_name_element_from_declaring_statement() is deprecated. Use PPIx::Utilities::Statement::get_constant_name_elements_from_declaring_statement() instead.', |
486
|
|
|
|
|
|
|
); |
487
|
|
|
|
|
|
|
|
488
|
0
|
0
|
|
|
|
0
|
return if not $element; |
489
|
0
|
0
|
|
|
|
0
|
return if not $element->isa('PPI::Statement'); |
490
|
|
|
|
|
|
|
|
491
|
0
|
0
|
0
|
|
|
0
|
if ( $element->isa('PPI::Statement::Include') ) { |
|
|
0
|
|
|
|
|
|
492
|
0
|
|
|
|
|
0
|
my $pragma; |
493
|
0
|
0
|
0
|
|
|
0
|
if ( $pragma = $element->pragma() and $pragma eq 'constant' ) { |
494
|
0
|
|
|
|
|
0
|
return _constant_name_from_constant_pragma($element); |
495
|
|
|
|
|
|
|
} |
496
|
|
|
|
|
|
|
} |
497
|
|
|
|
|
|
|
elsif ( |
498
|
|
|
|
|
|
|
is_ppi_generic_statement($element) |
499
|
|
|
|
|
|
|
and $element->schild(0)->content() =~ m< \A Readonly \b >xms |
500
|
|
|
|
|
|
|
) { |
501
|
0
|
|
|
|
|
0
|
return $element->schild(2); |
502
|
|
|
|
|
|
|
} |
503
|
|
|
|
|
|
|
|
504
|
0
|
|
|
|
|
0
|
return; |
505
|
|
|
|
|
|
|
} |
506
|
|
|
|
|
|
|
|
507
|
|
|
|
|
|
|
sub _constant_name_from_constant_pragma { |
508
|
0
|
|
|
0
|
|
0
|
my ($include) = @_; |
509
|
|
|
|
|
|
|
|
510
|
0
|
0
|
|
|
|
0
|
my @arguments = $include->arguments() or return; |
511
|
|
|
|
|
|
|
|
512
|
0
|
|
|
|
|
0
|
my $follower = $arguments[0]; |
513
|
0
|
0
|
|
|
|
0
|
return if not defined $follower; |
514
|
|
|
|
|
|
|
|
515
|
0
|
|
|
|
|
0
|
return $follower; |
516
|
|
|
|
|
|
|
} |
517
|
|
|
|
|
|
|
|
518
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
519
|
|
|
|
|
|
|
|
520
|
|
|
|
|
|
|
sub get_next_element_in_same_simple_statement { |
521
|
0
|
0
|
|
0
|
0
|
0
|
my $element = shift or return; |
522
|
|
|
|
|
|
|
|
523
|
0
|
|
0
|
|
|
0
|
while ( $element and ( |
|
|
|
0
|
|
|
|
|
524
|
|
|
|
|
|
|
not is_ppi_simple_statement( $element ) |
525
|
|
|
|
|
|
|
or $element->parent() |
526
|
|
|
|
|
|
|
and $element->parent()->isa( 'PPI::Structure::List' ) ) ) { |
527
|
0
|
|
|
|
|
0
|
my $next; |
528
|
0
|
0
|
|
|
|
0
|
$next = $element->snext_sibling() and return $next; |
529
|
0
|
|
|
|
|
0
|
$element = $element->parent(); |
530
|
|
|
|
|
|
|
} |
531
|
0
|
|
|
|
|
0
|
return; |
532
|
|
|
|
|
|
|
|
533
|
|
|
|
|
|
|
} |
534
|
|
|
|
|
|
|
|
535
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
536
|
|
|
|
|
|
|
|
537
|
|
|
|
|
|
|
sub get_previous_module_used_on_same_line { |
538
|
0
|
0
|
|
0
|
0
|
0
|
my $element = shift or return; |
539
|
|
|
|
|
|
|
|
540
|
0
|
0
|
|
|
|
0
|
my ( $line ) = @{ $element->location() || []}; |
|
0
|
|
|
|
|
0
|
|
541
|
|
|
|
|
|
|
|
542
|
0
|
|
|
|
|
0
|
while (not is_ppi_simple_statement( $element )) { |
543
|
0
|
0
|
|
|
|
0
|
$element = $element->parent() or return; |
544
|
|
|
|
|
|
|
} |
545
|
|
|
|
|
|
|
|
546
|
0
|
|
|
|
|
0
|
while ( $element = $element->sprevious_sibling() ) { |
547
|
0
|
0
|
|
|
|
0
|
( @{ $element->location() || []} )[0] == $line or return; |
|
0
|
0
|
|
|
|
0
|
|
548
|
0
|
0
|
|
|
|
0
|
$element->isa( 'PPI::Statement::Include' ) |
549
|
|
|
|
|
|
|
and return $element->schild( 1 ); |
550
|
|
|
|
|
|
|
} |
551
|
|
|
|
|
|
|
|
552
|
0
|
|
|
|
|
0
|
return; |
553
|
|
|
|
|
|
|
} |
554
|
|
|
|
|
|
|
|
555
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
556
|
|
|
|
|
|
|
|
557
|
|
|
|
|
|
|
sub is_ppi_expression_or_generic_statement { |
558
|
4
|
|
|
4
|
1
|
5
|
my $element = shift; |
559
|
|
|
|
|
|
|
|
560
|
4
|
50
|
|
|
|
131
|
return if not $element; |
561
|
4
|
50
|
|
|
|
20
|
return if not $element->isa('PPI::Statement'); |
562
|
4
|
100
|
|
|
|
20
|
return 1 if $element->isa('PPI::Statement::Expression'); |
563
|
|
|
|
|
|
|
|
564
|
2
|
|
|
|
|
11
|
my $element_class = blessed($element); |
565
|
|
|
|
|
|
|
|
566
|
2
|
50
|
|
|
|
7
|
return if not $element_class; |
567
|
2
|
|
|
|
|
9
|
return $element_class eq 'PPI::Statement'; |
568
|
|
|
|
|
|
|
} |
569
|
|
|
|
|
|
|
#----------------------------------------------------------------------------- |
570
|
|
|
|
|
|
|
|
571
|
|
|
|
|
|
|
1; |
572
|
|
|
|
|
|
|
|
573
|
|
|
|
|
|
|
__END__ |
574
|
|
|
|
|
|
|
|
575
|
|
|
|
|
|
|
=pod |
576
|
|
|
|
|
|
|
|
577
|
|
|
|
|
|
|
=for stopwords |
578
|
|
|
|
|
|
|
|
579
|
|
|
|
|
|
|
=head1 NAME |
580
|
|
|
|
|
|
|
|
581
|
|
|
|
|
|
|
Perl::ToPerl6::Utils::PPI - Utility functions for dealing with PPI objects. |
582
|
|
|
|
|
|
|
|
583
|
|
|
|
|
|
|
|
584
|
|
|
|
|
|
|
=head1 DESCRIPTION |
585
|
|
|
|
|
|
|
|
586
|
|
|
|
|
|
|
Provides classification of L<PPI::Elements|PPI::Elements>. |
587
|
|
|
|
|
|
|
|
588
|
|
|
|
|
|
|
|
589
|
|
|
|
|
|
|
=head1 INTERFACE SUPPORT |
590
|
|
|
|
|
|
|
|
591
|
|
|
|
|
|
|
This is considered to be a public module. Any changes to its |
592
|
|
|
|
|
|
|
interface will go through a deprecation cycle. |
593
|
|
|
|
|
|
|
|
594
|
|
|
|
|
|
|
|
595
|
|
|
|
|
|
|
=head1 IMPORTABLE SUBS |
596
|
|
|
|
|
|
|
|
597
|
|
|
|
|
|
|
=over |
598
|
|
|
|
|
|
|
|
599
|
|
|
|
|
|
|
=item C<dscanf( $format_string, {options=>1} )> |
600
|
|
|
|
|
|
|
|
601
|
|
|
|
|
|
|
'a' - |
602
|
|
|
|
|
|
|
'b' - |
603
|
|
|
|
|
|
|
'c' - |
604
|
|
|
|
|
|
|
'd' - Specify an integer in an arbitrary base. |
605
|
|
|
|
|
|
|
If you want integers in a base other than decimal, add a modifier: |
606
|
|
|
|
|
|
|
'bd' - Binary integer |
607
|
|
|
|
|
|
|
'od' - Octal integer |
608
|
|
|
|
|
|
|
'xd' - Hexadecimal integer |
609
|
|
|
|
|
|
|
'e' - |
610
|
|
|
|
|
|
|
'f' - Specify a floating-point number. |
611
|
|
|
|
|
|
|
If you want floating-point numbers in exponential notation, add |
612
|
|
|
|
|
|
|
a modifier: |
613
|
|
|
|
|
|
|
'ef' - Exponential number |
614
|
|
|
|
|
|
|
'g' - |
615
|
|
|
|
|
|
|
'h' - |
616
|
|
|
|
|
|
|
'i' - |
617
|
|
|
|
|
|
|
'j' - |
618
|
|
|
|
|
|
|
'k' - |
619
|
|
|
|
|
|
|
'l' - |
620
|
|
|
|
|
|
|
'm' - |
621
|
|
|
|
|
|
|
'n' - |
622
|
|
|
|
|
|
|
'o' - |
623
|
|
|
|
|
|
|
'p' - |
624
|
|
|
|
|
|
|
'q' - |
625
|
|
|
|
|
|
|
'r' - Specify a regular expression. |
626
|
|
|
|
|
|
|
Note that this will match C</foo/>, C<s/foo/bar/>, C<y/a-m/n-z/>. |
627
|
|
|
|
|
|
|
If you want to match a specific regex type, then preface 'r' with: |
628
|
|
|
|
|
|
|
'mr' - Matching regular expression |
629
|
|
|
|
|
|
|
'sr' - Substitution regular expression |
630
|
|
|
|
|
|
|
'tr' - Transliterating regular expression |
631
|
|
|
|
|
|
|
's' - Specify a quoted string. |
632
|
|
|
|
|
|
|
This will match both C<'foo'> and C<qq qfooq> by default. |
633
|
|
|
|
|
|
|
If you want to match a specific string type, then preface 's' with: |
634
|
|
|
|
|
|
|
'ds' - Double-quoted string |
635
|
|
|
|
|
|
|
'ls' - Literal string type |
636
|
|
|
|
|
|
|
'ss' - Single-quoted string |
637
|
|
|
|
|
|
|
'is' - Interpolated string |
638
|
|
|
|
|
|
|
't' - |
639
|
|
|
|
|
|
|
'u' - |
640
|
|
|
|
|
|
|
'v' - Specify a Perl variable. |
641
|
|
|
|
|
|
|
If you want a specific type of variable, add one of these modifiers: |
642
|
|
|
|
|
|
|
'av' - Array variable |
643
|
|
|
|
|
|
|
'gv' - GLOB variable |
644
|
|
|
|
|
|
|
'hv' - Hash variable |
645
|
|
|
|
|
|
|
'sv' - Scalar variable |
646
|
|
|
|
|
|
|
'w' - |
647
|
|
|
|
|
|
|
'x' - |
648
|
|
|
|
|
|
|
'y' - |
649
|
|
|
|
|
|
|
'z' - |
650
|
|
|
|
|
|
|
|
651
|
|
|
|
|
|
|
'A' - |
652
|
|
|
|
|
|
|
'B' - |
653
|
|
|
|
|
|
|
'C' - |
654
|
|
|
|
|
|
|
'D' - |
655
|
|
|
|
|
|
|
'E' - |
656
|
|
|
|
|
|
|
'F' - |
657
|
|
|
|
|
|
|
'G' - |
658
|
|
|
|
|
|
|
'H' - |
659
|
|
|
|
|
|
|
'I' - |
660
|
|
|
|
|
|
|
'J' - |
661
|
|
|
|
|
|
|
'K' - |
662
|
|
|
|
|
|
|
'L' - A list. |
663
|
|
|
|
|
|
|
'M' - |
664
|
|
|
|
|
|
|
'N' - |
665
|
|
|
|
|
|
|
'O' - |
666
|
|
|
|
|
|
|
'P' - An explicit L<PPI> node type, C<'%P{Token::Word}'> for instance. |
667
|
|
|
|
|
|
|
You can prefix this with C<'PPI::'> but it's considered redundant. |
668
|
|
|
|
|
|
|
'Q' - |
669
|
|
|
|
|
|
|
'R' - |
670
|
|
|
|
|
|
|
'S' - |
671
|
|
|
|
|
|
|
'T' - |
672
|
|
|
|
|
|
|
'U' - |
673
|
|
|
|
|
|
|
'V' - |
674
|
|
|
|
|
|
|
'W' - |
675
|
|
|
|
|
|
|
'X' - |
676
|
|
|
|
|
|
|
'Y' - |
677
|
|
|
|
|
|
|
'Z' - |
678
|
|
|
|
|
|
|
|
679
|
|
|
|
|
|
|
=item C<is_ppi_expression_or_generic_statement( $element )> |
680
|
|
|
|
|
|
|
|
681
|
|
|
|
|
|
|
Answers whether the parameter is an expression or an undifferentiated |
682
|
|
|
|
|
|
|
statement. I.e. the parameter either is a |
683
|
|
|
|
|
|
|
L<PPI::Statement::Expression|PPI::Statement::Expression> or the class |
684
|
|
|
|
|
|
|
of the parameter is L<PPI::Statement|PPI::Statement> and not one of |
685
|
|
|
|
|
|
|
its subclasses other than C<Expression>. |
686
|
|
|
|
|
|
|
|
687
|
|
|
|
|
|
|
|
688
|
|
|
|
|
|
|
=item C<is_ppi_generic_statement( $element )> |
689
|
|
|
|
|
|
|
|
690
|
|
|
|
|
|
|
Answers whether the parameter is an undifferentiated statement, i.e. |
691
|
|
|
|
|
|
|
the parameter is a L<PPI::Statement|PPI::Statement> but not one of its |
692
|
|
|
|
|
|
|
subclasses. |
693
|
|
|
|
|
|
|
|
694
|
|
|
|
|
|
|
|
695
|
|
|
|
|
|
|
=item C<is_ppi_statement_subclass( $element )> |
696
|
|
|
|
|
|
|
|
697
|
|
|
|
|
|
|
Answers whether the parameter is a specialized statement, i.e. the |
698
|
|
|
|
|
|
|
parameter is a L<PPI::Statement|PPI::Statement> but the class of the |
699
|
|
|
|
|
|
|
parameter is not L<PPI::Statement|PPI::Statement>. |
700
|
|
|
|
|
|
|
|
701
|
|
|
|
|
|
|
|
702
|
|
|
|
|
|
|
=item C<is_ppi_simple_statement( $element )> |
703
|
|
|
|
|
|
|
|
704
|
|
|
|
|
|
|
Answers whether the parameter represents a simple statement, i.e. whether the |
705
|
|
|
|
|
|
|
parameter is a L<PPI::Statement|PPI::Statement>, |
706
|
|
|
|
|
|
|
L<PPI::Statement::Break|PPI::Statement::Break>, |
707
|
|
|
|
|
|
|
L<PPI::Statement::Include|PPI::Statement::Include>, |
708
|
|
|
|
|
|
|
L<PPI::Statement::Null|PPI::Statement::Null>, |
709
|
|
|
|
|
|
|
L<PPI::Statement::Package|PPI::Statement::Package>, or |
710
|
|
|
|
|
|
|
L<PPI::Statement::Variable|PPI::Statement::Variable>. |
711
|
|
|
|
|
|
|
|
712
|
|
|
|
|
|
|
=back |
713
|
|
|
|
|
|
|
|
714
|
|
|
|
|
|
|
=head1 AUTHOR |
715
|
|
|
|
|
|
|
|
716
|
|
|
|
|
|
|
Jeffrey Goff <drforr@pobox.com> |
717
|
|
|
|
|
|
|
|
718
|
|
|
|
|
|
|
=head1 AUTHOR EMERITUS |
719
|
|
|
|
|
|
|
|
720
|
|
|
|
|
|
|
Elliot Shank <perl@galumph.com> |
721
|
|
|
|
|
|
|
|
722
|
|
|
|
|
|
|
|
723
|
|
|
|
|
|
|
=head1 COPYRIGHT |
724
|
|
|
|
|
|
|
|
725
|
|
|
|
|
|
|
Copyright (c) 2007-2011 Elliot Shank. |
726
|
|
|
|
|
|
|
|
727
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify |
728
|
|
|
|
|
|
|
it under the same terms as Perl itself. The full text of this license |
729
|
|
|
|
|
|
|
can be found in the LICENSE file included with this module. |
730
|
|
|
|
|
|
|
|
731
|
|
|
|
|
|
|
=cut |
732
|
|
|
|
|
|
|
|
733
|
|
|
|
|
|
|
# Local Variables: |
734
|
|
|
|
|
|
|
# mode: cperl |
735
|
|
|
|
|
|
|
# cperl-indent-level: 4 |
736
|
|
|
|
|
|
|
# fill-column: 78 |
737
|
|
|
|
|
|
|
# indent-tabs-mode: nil |
738
|
|
|
|
|
|
|
# c-indentation-style: bsd |
739
|
|
|
|
|
|
|
# End: |
740
|
|
|
|
|
|
|
# ex: set ts=8 sts=4 sw=4 tw=78 ft=perl expandtab shiftround : |