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1 # Redmine - project management software
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2 # Copyright (C) 2006-2011 Jean-Philippe Lang
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3 #
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4 # This program is free software; you can redistribute it and/or
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5 # modify it under the terms of the GNU General Public License
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6 # as published by the Free Software Foundation; either version 2
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7 # of the License, or (at your option) any later version.
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8 #
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9 # This program is distributed in the hope that it will be useful,
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10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 # GNU General Public License for more details.
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13 #
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14 # You should have received a copy of the GNU General Public License
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15 # along with this program; if not, write to the Free Software
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16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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17
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18 require 'blankslate'
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19
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20 module Redmine
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21 module Views
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22 module Builders
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23 class Structure < BlankSlate
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24 def initialize
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25 @struct = [{}]
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26 end
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27
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28 def array(tag, options={}, &block)
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29 @struct << []
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30 block.call(self)
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31 ret = @struct.pop
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32 @struct.last[tag] = ret
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33 @struct.last.merge!(options) if options
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34 end
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35
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36 def method_missing(sym, *args, &block)
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37 if args.any?
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38 if args.first.is_a?(Hash)
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39 if @struct.last.is_a?(Array)
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40 @struct.last << args.first unless block
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41 else
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42 @struct.last[sym] = args.first
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43 end
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44 else
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45 if @struct.last.is_a?(Array)
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46 @struct.last << (args.last || {}).merge(:value => args.first)
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47 else
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48 @struct.last[sym] = args.first
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49 end
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50 end
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51 end
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52
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53 if block
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54 @struct << (args.first.is_a?(Hash) ? args.first : {})
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55 block.call(self)
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56 ret = @struct.pop
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57 if @struct.last.is_a?(Array)
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58 @struct.last << ret
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59 else
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60 if @struct.last.has_key?(sym) && @struct.last[sym].is_a?(Hash)
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61 @struct.last[sym].merge! ret
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62 else
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63 @struct.last[sym] = ret
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64 end
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65 end
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66 end
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67 end
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68
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69 def output
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70 raise "Need to implement #{self.class.name}#output"
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71 end
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72 end
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73 end
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74 end
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75 end
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