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 MiYAML
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27 |
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28 | def self.dump(object, options = {})
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29 | options = { :indent => 0, :boundaries => true }.merge( options )
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30 |
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31 | out = (options[:boundaries] ? "---\n" : '')
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32 | out << dump_object(object, options[:indent]).strip
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33 | out << (options[:boundaries] ? "\n...\n" : '')
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34 | out
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35 | end
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36 |
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37 | def self.dump_object(object, indent = 0)
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38 | yaml = ''
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39 |
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40 | if object.class == Object
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41 | object = object.instance_variables.inject( {} ) { |hash, var| hash[var.gsub('@', '')] = object.instance_variable_get(var); hash }
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42 | end
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43 |
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44 | case object
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45 | when Array
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46 | object.each do |value|
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47 | yaml << indenter(indent) << '- ' << dump_object( value, indent + 1 )
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48 | end
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49 | when Hash
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50 | object.each do |key, value|
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51 | yaml << indenter(indent) << "#{key}: " << dump_object( value, indent + 1 )
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52 | end
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53 | else
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54 | yaml << object.to_s
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55 | end
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56 |
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57 | return yaml
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58 | end
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59 |
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60 | def self.indenter(indent = 0)
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61 | "\n" << ' ' * indent
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62 | end
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63 | end
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