annotate Lib/IMPL/Resources/Strings.pm @ 387:4cc6cc370fb2

DOM refactoring
author sergey
date Tue, 11 Feb 2014 01:13:47 +0400
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children
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1 package IMPL::Resources::Strings;
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2 use strict;
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3
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4 use File::Spec;
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5 use List::Util qw(first);
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6 use IMPL::require {
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7 StringMap => 'IMPL::Resources::StringLocaleMap'
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8 };
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9
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10 our @Locations;
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11 my %maps;
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12
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13 sub import {
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14 my ($self,$refStrings,%options) = @_;
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15
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16 no strict 'refs';
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17
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18 my $class = caller;
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19 my $methods = $options{methods};
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20
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21 if (ref $refStrings eq 'HASH') {
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22 my $map = $self->_GetMapForClass($class,$refStrings);
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23
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24 while(my ($str,$format) = each %$refStrings) {
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25 *{"${class}::$str"} = sub {
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26 shift if $methods;
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27 my $args = @_ == 1 ? shift : { @_ };
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28
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29 return $map->GetString($str,$args);
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30 }
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31 }
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32 }
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33 }
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34
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35 sub _GetResourceLocations {
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36 my ($self,$class) = @_;
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37
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38 my @classNamespace = split /::/,$class;
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39
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40 my $classShortName = pop @classNamespace;
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41
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42 my @paths = map File::Spec->catdir($_,@classNamespace), @Locations;
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43
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44 # Foo::Bar -> 'Foo/Bar.pm'
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45 my $classModuleName = File::Spec->catfile(@classNamespace,"${classShortName}.pm");
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46
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47 # 'Foo/Bar.pm' -> '/full/path/to/Foo/Bar.pm'
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48 my $fullModulePath = first { -f } map( File::Spec->catfile($_,$classModuleName), @INC );
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49
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50 if ($fullModulePath) {
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51
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52 # '/full/path/to/Foo/Bar.pm' -> '/full/path/to/Foo/locale/'
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53 my ($vol,$dir,$file) = File::Spec->splitpath($fullModulePath);
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54 push @paths, File::Spec->catpath($vol,File::Spec->catdir($dir,'locale'),'');
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55 }
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56
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57 return \@paths, $classShortName;
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58 }
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59
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60 sub _GetMapForClass {
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61 my ($self,$class,$data) = @_;
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62
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63 my $map;
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64
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65 unless ($map) {
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67 my ($paths,$name) = $self->_GetResourceLocations($class);
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68
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69 $map = StringMap->new($data);
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70 $map->name($name);
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71 $map->paths($paths);
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72
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73 $maps{$class} = $map;
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74
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75 }
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76
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77 return $map;
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78 }
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79
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80 1;
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81
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82 __END__
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83
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84 =pod
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85
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86 =head1 NAME
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87
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88 C<IMPL::Resources::Strings> - Строковые ресурсы
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89
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90 =head1 SYNOPSIS
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91
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92 =begin code
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93
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94 package Foo;
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95
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96 use IMPL::Resources::Strings {
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97 msg_say_hello => "Hello, %name%!",
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98 msg_module_name => "Simple Foo class"
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99 };
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100
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101 sub InviteUser {
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102 my ($this,$uname) = @_;
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103
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104 print msg_say_hello(name => $uname);
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105
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106 }
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107
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108 =end code
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109
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110 =head1 DESCRIPTION
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111
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112 Импортирует в целевой модуль функции, которые возвращают локализованные
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113 параметризованные сообщения.
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114
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115 При импорте ищутся модули по следующему алгоритму:
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116
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117 В каталогах из массива C<@Locations> ищется файл с относительным путем
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118 C<$Locale/$ModName>, где C<$Locale> - глобальная переменная
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119 модуля C<IMPL::Resourses::Strings>, а переменная C<$ModName> получена
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120 путем замены 'C<::>' в имени целевого модуля на 'C</>'.
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121
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122 Если файл не был найден, то производится поиск в каталоге, где
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123 расположен сам модуль, файла с относительным путем C<locale/$Locale/$ShortModName>,
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124 где C<$ShortModeName> - последняя часть после 'C<::>' из имени целевого модуля.
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125
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126 Если файл не найден, то используются строки, указанные при объявлении
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127 сообщений в целевом модуле.
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128
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129 =head1 FORMAT
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131 =begin code text
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132
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133 msg_name = any text with named %params%
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134 msg_hello = hello, %name%!!!
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135 msg_resolve = this is a value of the property: %user.age%
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136
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137 msg_short_err = %error.Message%
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138 msg_full_err = %error%
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139
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140 =end code text
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141
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142 =cut