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util/jsonschema.lua @ 12365:af02b033bd7f
util.bit53: Support for more than 2 arguments, for compat with bit32
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 04 Mar 2022 19:37:59 +0000 |
parent | 12132:4ff0d33dfb2b |
child | 12500:88e1b94105ae |
rev | line source |
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1 local json = require("util.json") |
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2 local null = json.null; |
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3 |
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4 local pointer = require("util.jsonpointer") |
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5 |
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6 local json_type_name = json.json_type_name |
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7 |
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8 local schema_t = {} |
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9 |
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10 local json_schema_object = {xml_t = {}} |
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11 |
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12 local type_validators = {} |
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13 |
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14 local function simple_validate(schema, data) |
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15 if schema == "object" and type(data) == "table" then |
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16 return type(data) == "table" and (next(data) == nil or type((next(data, nil))) == "string") |
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17 elseif schema == "array" and type(data) == "table" then |
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18 return type(data) == "table" and (next(data) == nil or type((next(data, nil))) == "number") |
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19 elseif schema == "integer" then |
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20 return math.type(data) == schema |
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21 elseif schema == "null" then |
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22 return data == null |
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23 else |
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24 return type(data) == schema |
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25 end |
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26 end |
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27 |
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28 type_validators.string = function(schema, data) |
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29 |
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30 if type(data) == "string" then |
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31 if schema.maxLength and #data > schema.maxLength then |
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32 return false |
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33 end |
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34 if schema.minLength and #data < schema.minLength then |
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35 return false |
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36 end |
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37 return true |
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38 end |
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39 return false |
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40 end |
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41 |
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42 type_validators.number = function(schema, data) |
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43 if schema.multipleOf and data % schema.multipleOf ~= 0 then |
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44 return false |
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45 end |
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46 |
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47 if schema.maximum and not (data <= schema.maximum) then |
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48 return false |
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49 end |
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50 |
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51 if schema.exclusiveMaximum and not (data < schema.exclusiveMaximum) then |
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52 return false |
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53 end |
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54 |
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55 if schema.minimum and not (data >= schema.minimum) then |
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56 return false |
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57 end |
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58 |
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59 if schema.exclusiveMinimum and not (data > schema.exclusiveMinimum) then |
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60 return false |
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61 end |
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62 |
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63 return true |
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64 end |
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65 |
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66 type_validators.integer = type_validators.number |
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67 |
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68 local function validate(schema, data, root) |
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69 if type(schema) == "boolean" then |
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70 return schema |
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71 end |
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72 if type(schema) == "string" then |
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73 return simple_validate(schema, data) |
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74 end |
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75 if type(schema) == "table" then |
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76 if root == nil then |
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77 root = schema |
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78 end |
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79 if schema["$ref"] and schema["$ref"]:sub(1, 1) == "#" then |
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80 local referenced = pointer.resolve(root, schema["$ref"]:sub(2)) |
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81 if referenced ~= nil then |
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82 return validate(referenced, data, root) |
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83 end |
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84 end |
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85 |
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86 if schema.allOf then |
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87 for _, sub in ipairs(schema.allOf) do |
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88 if not validate(sub, data, root) then |
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89 return false |
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90 end |
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91 end |
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92 return true |
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93 end |
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94 |
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95 if schema.oneOf then |
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96 local valid = 0 |
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97 for _, sub in ipairs(schema.oneOf) do |
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98 if validate(sub, data, root) then |
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99 valid = valid + 1 |
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100 end |
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101 end |
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102 return valid == 1 |
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103 end |
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104 |
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105 if schema.anyOf then |
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106 for _, sub in ipairs(schema.anyOf) do |
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107 if validate(sub, data, root) then |
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108 return true |
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109 end |
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110 end |
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111 return false |
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112 end |
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113 |
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114 if schema["not"] then |
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115 if validate(schema["not"], data, root) then |
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116 return false |
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117 end |
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118 end |
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119 |
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120 if schema["if"] then |
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121 if validate(schema["if"], data, root) then |
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122 if schema["then"] then |
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123 return validate(schema["then"], data, root) |
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124 end |
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125 else |
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126 if schema["else"] then |
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127 return validate(schema["else"], data, root) |
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128 end |
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129 end |
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130 end |
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131 |
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132 if schema.const ~= nil and schema.const ~= data then |
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133 return false |
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134 end |
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135 |
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136 if schema["enum"] ~= nil then |
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137 for _, v in ipairs(schema["enum"]) do |
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138 if v == data then |
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139 return true |
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140 end |
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141 end |
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142 return false |
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143 end |
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144 |
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145 if schema.type then |
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146 if not simple_validate(schema.type, data) then |
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147 return false |
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148 end |
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149 |
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150 local validator = type_validators[schema.type] |
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151 if validator then |
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152 return validator(schema, data, root) |
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153 end |
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154 end |
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155 return true |
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156 end |
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157 end |
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158 |
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159 type_validators.table = function(schema, data, root) |
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160 if type(data) == "table" then |
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161 |
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162 if schema.maxItems and #data > schema.maxItems then |
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163 return false |
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164 end |
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165 |
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166 if schema.minItems and #data < schema.minItems then |
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167 return false |
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168 end |
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169 |
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170 if schema.required then |
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171 for _, k in ipairs(schema.required) do |
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172 if data[k] == nil then |
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173 return false |
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174 end |
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175 end |
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176 end |
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177 |
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178 if schema.properties then |
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179 local additional = schema.additionalProperties or true |
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180 for k, v in pairs(data) do |
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181 if schema.propertyNames and not validate(schema.propertyNames, k, root) then |
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182 return false |
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183 end |
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184 local s = schema.properties[k] or additional |
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185 if not validate(s, v, root) then |
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186 return false |
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187 end |
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188 end |
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189 elseif schema.additionalProperties then |
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190 for k, v in pairs(data) do |
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191 if schema.propertyNames and not validate(schema.propertyNames, k, root) then |
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192 return false |
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193 end |
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194 if not validate(schema.additionalProperties, v, root) then |
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195 return false |
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196 end |
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197 end |
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198 end |
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199 |
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200 if schema.uniqueItems then |
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201 |
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202 local values = {} |
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203 for _, v in pairs(data) do |
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204 if values[v] then |
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205 return false |
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206 end |
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207 values[v] = true |
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208 end |
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209 end |
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210 |
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211 local p = 0 |
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212 if schema.prefixItems then |
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213 for i, s in ipairs(schema.prefixItems) do |
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214 if validate(s, data[i], root) then |
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215 p = i |
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216 else |
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217 return false |
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218 end |
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219 end |
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220 end |
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221 |
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222 if schema.items then |
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223 for i = p + 1, #data do |
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224 if not validate(schema.items, data[i], root) then |
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225 return false |
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226 end |
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227 end |
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228 end |
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229 |
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230 if schema.contains then |
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231 local found = false |
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232 for i = 1, #data do |
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233 if validate(schema.contains, data[i], root) then |
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234 found = true |
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235 break |
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236 end |
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237 end |
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238 if not found then |
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239 return false |
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240 end |
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241 end |
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242 |
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243 return true |
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244 end |
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245 return false |
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246 end |
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247 |
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248 type_validators.object = function(schema, data, root) |
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249 if type(data) == "table" then |
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250 for k in pairs(data) do |
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251 if not (type(k) == "string") then |
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252 return false |
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253 end |
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254 end |
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255 |
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256 return type_validators.table(schema, data, root) |
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257 end |
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258 return false |
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259 end |
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260 |
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261 type_validators.array = function(schema, data, root) |
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262 if type(data) == "table" then |
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263 |
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264 for i in pairs(data) do |
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265 if not (type(i) == "number") then |
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266 return false |
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267 end |
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268 end |
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269 |
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270 return type_validators.table(schema, data, root) |
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271 end |
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272 return false |
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273 end |
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274 |
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275 json_schema_object.validate = validate; |
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276 |
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277 return json_schema_object |