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util/datamapper.lua @ 11446:58c534bac798
util.jsonschema: Implement "propertyNames"
This is a bit special in Lua as tables are not limited to string keys
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 09 Mar 2021 02:43:50 +0100 |
parent | 11439:9abcdfdcdb01 |
child | 11451:ee4f2296e7df |
rev | line source |
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1 local st = require("util.stanza"); |
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2 |
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3 local function toboolean(s) |
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4 if s == "true" or s == "1" then |
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5 return true |
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6 elseif s == "false" or s == "0" then |
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7 return false |
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8 end |
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9 end |
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10 |
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11 local function parse_object(schema, s) |
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12 local out = {} |
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13 if schema.properties then |
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14 for prop, propschema in pairs(schema.properties) do |
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15 |
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16 local name = prop |
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17 local namespace = s.attr.xmlns; |
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18 local prefix = nil |
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19 local is_attribute = false |
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20 local is_text = false |
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21 local name_is_value = false; |
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22 local single_attribute |
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23 |
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24 local proptype |
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25 if type(propschema) == "table" then |
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26 proptype = propschema.type |
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27 elseif type(propschema) == "string" then |
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28 proptype = propschema |
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29 end |
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30 |
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31 if type(propschema) == "table" and propschema.xml then |
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32 if propschema.xml.name then |
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33 name = propschema.xml.name |
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34 end |
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35 if propschema.xml.namespace then |
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36 namespace = propschema.xml.namespace |
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37 end |
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38 if propschema.xml.prefix then |
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39 prefix = propschema.xml.prefix |
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40 end |
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41 if propschema.xml.attribute then |
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42 is_attribute = true |
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43 elseif propschema.xml.text then |
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44 is_text = true |
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45 elseif propschema.xml.x_name_is_value then |
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46 name_is_value = true |
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47 elseif propschema.xml.x_single_attribute then |
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48 single_attribute = propschema.xml.x_single_attribute |
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49 end |
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50 end |
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51 |
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52 if name_is_value then |
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53 local c = s:get_child(nil, namespace); |
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54 if c and proptype == "string" then |
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55 out[prop] = c.name; |
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56 elseif proptype == "boolean" and c then |
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57 out[prop] = true; |
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58 end |
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59 elseif is_attribute then |
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60 local attr = name |
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61 if prefix then |
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62 attr = prefix .. ":" .. name |
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63 elseif namespace ~= s.attr.xmlns then |
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64 attr = namespace .. "\1" .. name |
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65 end |
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66 if proptype == "string" then |
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67 out[prop] = s.attr[attr] |
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68 elseif proptype == "integer" or proptype == "number" then |
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69 |
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70 out[prop] = tonumber(s.attr[attr]) |
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71 elseif proptype == "boolean" then |
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72 out[prop] = toboolean(s.attr[attr]) |
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73 |
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74 end |
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75 |
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76 elseif is_text then |
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77 if proptype == "string" then |
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78 out[prop] = s:get_text() |
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79 elseif proptype == "integer" or proptype == "number" then |
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80 out[prop] = tonumber(s:get_text()) |
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81 end |
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82 |
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83 elseif single_attribute then |
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84 local c = s:get_child(name, namespace) |
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85 local a = c and c.attr[single_attribute] |
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86 if proptype == "string" then |
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87 out[prop] = a |
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88 elseif proptype == "integer" or proptype == "number" then |
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89 out[prop] = tonumber(a) |
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90 elseif proptype == "boolean" then |
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91 out[prop] = toboolean(a) |
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92 end |
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93 else |
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94 |
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95 if proptype == "string" then |
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96 out[prop] = s:get_child_text(name, namespace) |
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97 elseif proptype == "integer" or proptype == "number" then |
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98 out[prop] = tonumber(s:get_child_text(name, namespace)) |
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99 elseif proptype == "object" and type(propschema) == "table" then |
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100 local c = s:get_child(name, namespace) |
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101 if c then |
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102 out[prop] = parse_object(propschema, c); |
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103 end |
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104 |
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105 end |
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106 end |
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107 end |
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108 end |
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109 |
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110 return out |
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111 end |
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112 |
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113 local function parse(schema, s) |
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114 if schema.type == "object" then |
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115 return parse_object(schema, s) |
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116 end |
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117 end |
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118 |
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119 local function unparse(schema, t, current_name, current_ns) |
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120 if schema.type == "object" then |
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121 |
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122 if schema.xml then |
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123 if schema.xml.name then |
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124 current_name = schema.xml.name |
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125 end |
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126 if schema.xml.namespace then |
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127 current_ns = schema.xml.namespace |
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128 end |
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129 |
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130 end |
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131 |
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132 local out = st.stanza(current_name, {xmlns = current_ns}) |
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133 |
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134 for prop, propschema in pairs(schema.properties) do |
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135 local v = t[prop] |
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136 |
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137 if v ~= nil then |
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138 local proptype |
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139 if type(propschema) == "table" then |
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140 proptype = propschema.type |
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141 elseif type(propschema) == "string" then |
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142 proptype = propschema |
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143 end |
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144 |
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145 local name = prop |
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146 local namespace = current_ns |
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147 local prefix = nil |
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148 local is_attribute = false |
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149 local is_text = false |
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150 local name_is_value = false; |
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151 local single_attribute |
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152 |
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153 if type(propschema) == "table" and propschema.xml then |
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154 |
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155 if propschema.xml.name then |
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156 name = propschema.xml.name |
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157 end |
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158 if propschema.xml.namespace then |
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159 namespace = propschema.xml.namespace |
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160 end |
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161 |
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162 if propschema.xml.prefix then |
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163 prefix = propschema.xml.prefix |
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164 end |
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165 |
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166 if propschema.xml.attribute then |
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167 is_attribute = true |
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168 elseif propschema.xml.text then |
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169 is_text = true |
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170 elseif propschema.xml.x_name_is_value then |
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171 name_is_value = true |
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172 elseif propschema.xml.x_single_attribute then |
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173 single_attribute = propschema.xml.x_single_attribute |
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174 end |
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175 end |
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176 |
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177 if is_attribute then |
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178 local attr = name |
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179 if prefix then |
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180 attr = prefix .. ":" .. name |
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181 elseif namespace ~= current_ns then |
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182 attr = namespace .. "\1" .. name |
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183 end |
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184 |
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185 if proptype == "string" and type(v) == "string" then |
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186 out.attr[attr] = v |
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187 elseif proptype == "number" and type(v) == "number" then |
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188 out.attr[attr] = string.format("%g", v) |
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189 elseif proptype == "integer" and type(v) == "number" then |
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190 out.attr[attr] = string.format("%d", v) |
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191 elseif proptype == "boolean" then |
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192 out.attr[attr] = v and "1" or "0" |
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193 end |
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194 elseif is_text then |
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195 if type(v) == "string" then |
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196 out:text(v) |
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197 end |
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198 elseif single_attribute then |
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199 local propattr = {} |
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200 |
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201 if namespace ~= current_ns then |
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202 propattr.xmlns = namespace |
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203 end |
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204 |
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205 if proptype == "string" and type(v) == "string" then |
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206 propattr[single_attribute] = v |
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207 elseif proptype == "number" and type(v) == "number" then |
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208 propattr[single_attribute] = string.format("%g", v) |
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209 elseif proptype == "integer" and type(v) == "number" then |
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210 propattr[single_attribute] = string.format("%d", v) |
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211 elseif proptype == "boolean" and type(v) == "boolean" then |
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212 propattr[single_attribute] = v and "1" or "0" |
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213 end |
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214 out:tag(name, propattr):up(); |
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215 |
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216 else |
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217 local propattr |
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218 if namespace ~= current_ns then |
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219 propattr = {xmlns = namespace} |
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220 end |
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221 if name_is_value then |
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222 if proptype == "string" and type(v) == "string" then |
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223 out:tag(v, propattr):up(); |
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224 elseif proptype == "boolean" and v == true then |
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225 out:tag(name, propattr):up(); |
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226 end |
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227 elseif proptype == "string" and type(v) == "string" then |
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228 out:text_tag(name, v, propattr) |
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229 elseif proptype == "number" and type(v) == "number" then |
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230 out:text_tag(name, string.format("%g", v), propattr) |
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231 elseif proptype == "integer" and type(v) == "number" then |
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232 out:text_tag(name, string.format("%d", v), propattr) |
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233 elseif proptype == "boolean" and type(v) == "boolean" then |
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234 out:text_tag(name, v and "1" or "0", propattr) |
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235 elseif proptype == "object" and type(propschema) == "table" and type(v) == "table" then |
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236 local c = unparse(propschema, v, name, namespace); |
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237 if c then |
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238 out:add_direct_child(c); |
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239 end |
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240 |
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241 end |
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242 end |
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243 end |
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244 end |
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245 return out |
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246 |
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247 end |
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248 end |
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249 |
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250 return {parse = parse; unparse = unparse} |