1 | # Copyright (c) 2005 Norman Timmler (inlet media e.K., Hamburg, Germany)
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2 | # All rights reserved.
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3 | #
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4 | # Redistribution and use in source and binary forms, with or without
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5 | # modification, are permitted provided that the following conditions
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6 | # are met:
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7 | # 1. Redistributions of source code must retain the above copyright
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8 | # notice, this list of conditions and the following disclaimer.
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9 | # 2. Redistributions in binary form must reproduce the above copyright
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10 | # notice, this list of conditions and the following disclaimer in the
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11 | # documentation and/or other materials provided with the distribution.
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12 | # 3. The name of the author may not be used to endorse or promote products
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13 | # derived from this software without specific prior written permission.
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14 | #
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15 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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16 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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17 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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18 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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19 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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20 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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21 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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22 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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23 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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24 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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25 |
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26 | class MiXML
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27 |
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28 | def self.parse(xml)
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29 | current = {}
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30 | xml.scan( /<([!\?].*?)>|<([^\/].*?)>|<\/(.+?)>|([^<>]*)/m ) do |ignore, open_tag, close_tag, cdata|
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31 | if open_tag
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32 | tag_name = open_tag.match( /(\w+)\s?/ )[1]
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33 |
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34 | parameters = {}
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35 | open_tag.scan( /(\w+)=\"(.*?)\"/ ) { |key, value| parameters[key] = value }
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36 |
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37 | parameters[:parent] = current
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38 |
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39 | if current[tag_name].class == Array
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40 | current[tag_name] << parameters
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41 | current = current[tag_name].last
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42 | else
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43 | if current[tag_name]
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44 | current[tag_name] = [ current[tag_name], parameters ]
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45 | current = current[tag_name].last
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46 | else
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47 | current[tag_name] = parameters
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48 | current = current[tag_name]
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49 | end
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50 | end
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51 |
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52 | elsif close_tag
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53 | parent = current[:parent]
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54 | current.delete( :parent )
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55 | current = parent unless parent.nil?
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56 | elsif cdata
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57 | cdata.strip!
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58 | current[:cdata] = cdata unless cdata.empty?
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59 | end
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60 | end
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61 |
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62 | return normalize_cdata( current )
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63 | end
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64 |
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65 | def self.normalize_cdata(branch)
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66 | if branch.class == Array
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67 | branch.collect do |item|
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68 | normalize_cdata( item )
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69 | end
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70 | elsif branch.class == Hash && branch[:cdata].nil?
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71 | branch.inject( {} ) do |hash, key_value|
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72 | key, value = key_value
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73 | value = normalize_cdata( value )
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74 | hash[key] = value
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75 | hash
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76 | end
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77 | else
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78 | if branch[:cdata] && branch.size == 1
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79 | branch[:cdata]
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80 | else
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81 | branch
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82 | end
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83 | end
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84 | end
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85 |
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86 | def self.dump(object, indent = 0)
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87 | ' ' * indent << dump_object(object, indent).strip
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88 | end
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89 |
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90 | def self.dump_object(object, indent = 0)
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91 | xml = ''
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92 |
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93 | if object.class == Object
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94 | object = object.instance_variables.inject( {} ) { |hash, var| hash[var.gsub('@', '')] = object.instance_variable_get(var); hash }
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95 | end
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96 |
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97 | case object
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98 | when Array
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99 | object.each do |value|
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100 | xml << indenter(indent) << "<value>" << dump_object( value, indent + 1 ) << "</value>"
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101 | end
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102 | xml << indenter(indent - 1)
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103 | when Hash
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104 | object.each do |key, value|
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105 | xml << indenter(indent) << "<#{key}>" << dump_object( value, indent + 1 ) << "</#{key}>"
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106 | end
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107 | xml << indenter(indent - 1)
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108 | else
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109 | xml << object.to_s
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110 | end
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111 |
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112 | return xml
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113 | end
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114 |
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115 | def self.indenter(indent = 0)
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116 | "\n" << ' ' * indent
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117 | end
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118 | end
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119 |
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