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package String::TT; |
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74028
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use strict; |
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125
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use warnings; |
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90
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2701
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use PadWalker qw(peek_my); |
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6154
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352
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use Carp qw(confess croak); |
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287
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154965
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use Template; |
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114425
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use List::Util qw(min); |
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use Sub::Exporter -setup => { |
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exports => [qw/tt strip/], |
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6100
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}; |
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57861
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our $VERSION = '0.03'; |
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our $AUTHORITY = 'CPAN:JROCKWAY'; |
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my %SIGIL_MAP = ( |
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'$' => 's', |
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'@' => 'a', |
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'%' => 'h', |
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'&' => 'c', # probably do not need |
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'*' => 'g', # probably do not need |
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); |
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{ |
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my $engine; |
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sub _build_tt_engine { |
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return $engine ||= Template->new; |
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} |
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} |
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sub tt($) { |
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1
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my $template = shift; |
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10
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50
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confess 'Whoa there, I need a template' if !defined $template; |
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34
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10
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50
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my %vars = %{peek_my(1)||{}}; |
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110
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10
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my %transformed_vars; |
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for my $v (keys %vars){ |
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15
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my ($sigil, $varname) = ($v =~ /^(.)(.+)$/); |
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15
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my $suffix = $SIGIL_MAP{$sigil}; |
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15
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my $name = join '_', $varname, $suffix; |
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15
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$transformed_vars{$name} = $vars{$v}; |
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15
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100
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if($sigil eq '$'){ |
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12
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15
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$transformed_vars{$name} = ${$transformed_vars{$name}}; |
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} |
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} |
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46
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# add the plain scalar variables (without overwriting anything) |
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10
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for my $v (grep { /_s$/ } keys %transformed_vars) { |
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12
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my ($varname) = ($v =~ /^(.+)_s$/); |
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12
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100
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if(!exists $transformed_vars{$varname}){ |
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$transformed_vars{$varname} = $transformed_vars{$v}; |
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} |
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} |
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54
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10
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29
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my $t = _build_tt_engine; |
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10
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30827
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my $output; |
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10
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100
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46
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$t->process(\$template, \%transformed_vars, \$output) |
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|| croak $t->error; |
58
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9
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71394
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return $output; |
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} |
60
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61
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sub strip($){ |
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11
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11
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1
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9721
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my $lines = shift; |
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64
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11
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39
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my $trailing_newline = ($lines =~ /\n$/s);# perl silently throws away data |
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11
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51
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my @lines = split "\n", $lines; |
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11
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100
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43
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shift @lines if $lines[0] eq ''; # strip empty leading line |
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68
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# determine indentation level |
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11
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100
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66
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23
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my @spaces = map { /^(\040+)/ and length $1 or 0 } grep { !/^\s*$/ } @lines; |
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17
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149
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22
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344
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70
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71
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11
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53
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my $indentation_level = min(@spaces); |
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73
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# strip off $indentation_level spaces |
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22
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29
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my $stripped = join "\n", map { |
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11
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19
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my $copy = $_; |
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22
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32
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substr($copy,0,$indentation_level) = ""; |
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22
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74
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$copy; |
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} @lines; |
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80
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11
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100
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35
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$stripped .= "\n" if $trailing_newline; |
81
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11
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84
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return $stripped; |
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} |
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84
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1; |
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__END__ |