1 | require 'date'
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2 |
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3 | module OpenEHR
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4 | module Assumed_Library_Types
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5 | class Any < Object
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6 |
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7 | end # of Any
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8 | class Interval < Any
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9 | attr_reader :lower, :lower_included, :lower_unbounded
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10 | attr_reader :upper, :upper_included, :upper_unbounded
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11 | def initialize(lower, upper,
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12 | lower_included = nil, upper_included = nil)
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13 | check_lower_upper(lower, upper)
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14 | set_lower_included(lower_included)
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15 | set_upper_included(upper_included)
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16 | end
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17 |
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18 | def set_lower(lower)
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19 | check_lower_upper(lower, @upper)
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20 | end
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21 |
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22 | def set_upper(upper)
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23 | check_lower_upper(@lower, upper)
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24 | end
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25 |
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26 | def set_lower_included(lower_included)
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27 | if (lower == nil) && (lower_included != nil)
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28 | raise ArgumentError, "lower is not set"
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29 | end
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30 | @lower_included = lower_included
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31 | end
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32 |
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33 | def set_upper_included(upper_included)
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34 | @upper_included = upper_included
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35 | if (upper == nil) && (upper_included != nil)
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36 | raise ArgumentError, "upper is not set"
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37 | end
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38 | end
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39 |
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40 | def has?(value)
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41 | if ((@lower < value) && (value < @upper) ||
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42 | (@lower_included == true) && (@lower == value) ||
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43 | (@upper_included == true) && (@upper == value))
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44 | true
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45 | else
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46 | false
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47 | end
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48 | end
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49 |
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50 | private
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51 |
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52 | def check_lower_upper(lower, upper)
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53 | if (lower == nil) && (upper == nil)
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54 | raise ArgumentError, "Either lower or upper must be assigned"
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55 | end
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56 | if (lower == nil) && (upper != nil)
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57 | @lower_unbounded = true
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58 | elsif (lower != nil) && (upper == nil)
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59 | @upper_unbounded = true
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60 | elsif lower > upper
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61 | raise ArgumentError, "Upper must be larger than lower."
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62 | end
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63 | @lower = lower
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64 | @upper = upper
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65 | end
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66 | end # end of Interval
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67 |
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68 | class TIME_DEFINITIONS < Any
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69 | DAYS_IN_LEAP_YEAR = 366
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70 | DAYS_IN_WEEK = 7
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71 | DAYS_IN_YEAR = 365
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72 | HOURS_IN_DAY = 24
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73 | MAX_DAYS_IN_MONTH = 31
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74 | MAX_DAYS_IN_YEAR = 366
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75 | MINUTES_IN_HOUR = 60
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76 | MONTH_IN_YEAR = 12
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77 | NOMINAL_DAYS_IN_MONTH = 30.42
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78 | NOMINAL_DAYS_IN_YEAR = 365.24
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79 | SECONDS_IN_MINUTE = 60
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80 |
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81 | def self.valid_year?(year)
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82 | year >= 0
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83 | end
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84 |
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85 | def self.valid_day?(y, m, d)
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86 | Date.valid_date?(y,m,d) and valid_year? y
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87 | end
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88 |
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89 | def self.valid_hour?(h,m,s)
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90 | valid_minute?(m) and valid_second?(s) and ((h >= 0 and h < HOURS_IN_DAY) or (h == HOURS_IN_DAY and m == 0 and s == 0))
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91 | end
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92 | def self.valid_minute?(m)
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93 | m >= 0 and m < MINUTES_IN_HOUR
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94 | end
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95 | def self.valid_second?(s)
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96 | s >= 0 and s < SECONDS_IN_MINUTE
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97 | end
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98 | def self.valid_month?(m)
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99 | m >= 1 and m <= MONTH_IN_YEAR
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100 | end
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101 | end # end of TIME_DEFINITIONS
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102 |
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103 | class ISO8601_DATE < TIME_DEFINITIONS
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104 | attr_reader :year, :month, :day
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105 | def initialize(year = nil, month = nil, day = nil)
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106 | @year = @month = @day = nil
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107 | if !year.nil?
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108 | self.year = year
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109 | end
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110 | if !month.nil?
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111 | self.month = month
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112 | end
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113 | if !day.nil?
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114 | self.day = day
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115 | end
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116 | end
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117 | def year=(year)
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118 | raise ArgumentError, "Year is not valid" if !ISO8601_DATE.valid_year?(year)
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119 | @year = year
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120 | end
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121 | def month=(month)
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122 | raise ArgumentError, "Month is not valid" if !ISO8601_DATE.valid_month?(month)
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123 | @month = month
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124 | end
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125 | def day=(day)
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126 | raise ArgumentError, "Day is not valid" if !ISO8601_DATE.valid_day?(@year, @month, day)
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127 | @day = day
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128 | end
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129 | def as_string
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130 | if (!@year.nil? and !@month.nil? and !@day.nil?)
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131 | Date.new(@year, @month, @day).to_s
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132 | elsif (!@year.nil? and !@month.nil? and @day.nil?)
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133 | Date.new(@year, @month).to_s[0,7]
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134 | elsif (!@year.nil? and @month.nil? and @day.nil?)
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135 | Date.new(@year).to_s[0,4]
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136 | end
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137 | end
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138 | def month_unknown?
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139 | @month.nil?
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140 | end
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141 | def day_unknown?
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142 | @day.nil?
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143 | end
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144 | def is_extended?
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145 | true
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146 | end
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147 | def is_partial?
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148 | month_unknown? or day_unknown?
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149 | end
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150 | def valid_iso8601_date(string)
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151 | begin
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152 | date = Date.parse(string)
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153 | rescue
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154 | return false
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155 | end
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156 | true
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157 | end
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158 | end # end of ISO8601_DATE
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159 |
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160 | class ISO8601_TIME < TIME_DEFINITIONS
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161 |
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162 | end # end of ISO8601_TIME
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163 |
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164 | class ISO8601_TIMEZONE
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165 | attr_accessor :sign, :hour, :minute
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166 | def is_gmt?
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167 | hour == 0
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168 | end
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169 | def as_string
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170 | sprintf("Z%s%2d%2d", @sign, @hour, @minute)
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171 | end
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172 | end # end of ISO8601_TIMEZONE
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173 | end # end of Assumed_Types
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174 | end # end of OpenEHR
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