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ab03de8e503e
teal-src/util/datamapper.tl

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teal-src/util/datamapper.tl @ 11471:ab03de8e503e

util.datamapper: Handle nested arrays or objects in arrays
author Kim Alvefur <zash@zash.se>
date Mon, 22 Mar 2021 10:05:41 +0100
parent 11470:5ebad952ebf7
child 11475:9bd36e871f05
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 -- Copyright (C) 2021 Kim Alvefur
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2 --
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3 -- This project is MIT/X11 licensed. Please see the
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4 -- COPYING file in the source package for more information.
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5 --
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6 -- Based on
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7 -- https://json-schema.org/draft/2020-12/json-schema-core.html
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8 -- https://json-schema.org/draft/2020-12/json-schema-validation.html
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9 -- http://spec.openapis.org/oas/v3.0.1#xmlObject
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10 -- https://github.com/OAI/OpenAPI-Specification/issues/630 (text:true)
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11 --
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12 -- XML Object Extensions:
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13 -- text to refer to the text content at the same time as attributes
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14 -- x_name_is_value for enum fields where the <tag-name/> is the value
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15 -- x_single_attribute for <tag attr="this"/>
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16 --
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17 -- TODO pointers
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18 -- TODO cleanup / refactor
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19 -- TODO s/number/integer/ once we have appropriate math.type() compat
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20 --
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21
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22 local st = require "util.stanza";
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23 local json = require"util.json"
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24
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25 local json_type_name = json.json_type_name;
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26 local json_schema_object = require "util.jsonschema"
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27 local type schema_t = boolean | json_type_name | json_schema_object
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28
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29 local function toboolean ( s : string ) : boolean
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30 if s == "true" or s == "1" then
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31 return true
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32 elseif s == "false" or s == "0" then
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33 return false
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34 elseif s then
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35 return true
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36 end
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37 end
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38
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39 local function totype(t : json_type_name, s : string) : any
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40 if t == "string" then
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41 return s;
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42 elseif t == "boolean" then
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43 return toboolean(s)
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44 elseif t == "number" or t == "integer" then
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45 return tonumber(s)
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46 end
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47 end
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48
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49 local enum value_goes
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50 "in_tag_name"
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51 "in_text"
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52 "in_text_tag"
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53 "in_attribute"
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54 "in_single_attribute"
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55 "in_children"
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56 "in_wrapper"
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57 end
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58
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59 local function unpack_propschema( propschema : schema_t, propname : string, current_ns : string )
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60 : json_type_name, value_goes, string, string, string, string, { any }
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61 local proptype : json_type_name = "string"
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62 local value_where : value_goes = propname and "in_text_tag" or "in_text"
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63 local name = propname
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64 local namespace = current_ns
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65 local prefix : string
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66 local single_attribute : string
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67 local enums : { any }
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68
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69 if propschema is json_schema_object then
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70 proptype = propschema.type
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71 elseif propschema is json_type_name then
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72 proptype = propschema
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73 end
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74
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75 if proptype == "object" or proptype == "array" then
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76 value_where = "in_children"
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77 end
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78
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79 if propschema is json_schema_object then
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80 local xml = propschema.xml
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81 if xml then
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82 if xml.name then
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83 name = xml.name
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84 end
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85 if xml.namespace then
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86 namespace = xml.namespace
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87 end
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88 if xml.prefix then
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89 prefix = xml.prefix
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90 end
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91 if proptype == "array" and xml.wrapped then
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92 value_where = "in_wrapper"
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93 elseif xml.attribute then
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94 value_where = "in_attribute"
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95 elseif xml.text then
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96 value_where = "in_text"
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97 elseif xml.x_name_is_value then
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98 value_where = "in_tag_name"
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99 elseif xml.x_single_attribute then
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100 single_attribute = xml.x_single_attribute
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101 value_where = "in_single_attribute"
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102 end
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103 end
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104 if propschema["const"] then
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105 enums = { propschema["const"] }
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106 elseif propschema["enum"] then
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107 enums = propschema["enum"]
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108 end
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109 end
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110
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111 return proptype, value_where, name, namespace, prefix, single_attribute, enums
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112 end
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113
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114 local parse_object : function (schema : schema_t, s : st.stanza_t) : { string : any }
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115 local parse_array : function (schema : schema_t, s : st.stanza_t) : { any }
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116
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117 local function extract_value (s : st.stanza_t, value_where : value_goes, proptype : json.json_type_name, name : string, namespace : string, prefix : string, single_attribute : string, enums : { any }) : string
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118 if value_where == "in_tag_name" then
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119 local c : st.stanza_t
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120 if proptype == "boolean" then
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121 c = s:get_child(name, namespace);
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122 elseif enums and proptype == "string" then
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123 -- XXX O(n²) ?
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124 -- Probably better to flip the table and loop over :childtags(nil, ns), should be 2xO(n)
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125 -- BUT works first, optimize later
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126 for i = 1, #enums do
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127 c = s:get_child(enums[i] as string, namespace);
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128 if c then break end
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129 end
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130 else
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131 c = s:get_child(nil, namespace);
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diff changeset
132 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
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parents: 11464
diff changeset
133 if c then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
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parents: 11464
diff changeset
134 return c.name;
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
135 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
136 elseif value_where == "in_attribute" then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
137 local attr = name
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
138 if prefix then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
139 attr = prefix .. ':' .. name
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
140 elseif namespace ~= s.attr.xmlns then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
141 attr = namespace .. "\1" .. name
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
142 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
143 return s.attr[attr]
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Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
144
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
145 elseif value_where == "in_text" then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
146 return s:get_text()
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
147
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
148 elseif value_where == "in_single_attribute" then
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Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
149 local c = s:get_child(name, namespace)
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diff changeset
150 return c and c.attr[single_attribute]
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parents: 11464
diff changeset
151 elseif value_where == "in_text_tag" then
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diff changeset
152 return s:get_child_text(name, namespace)
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Kim Alvefur <zash@zash.se>
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diff changeset
153 end
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Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
154 end
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Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
155
11461
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diff changeset
156 function parse_object (schema : schema_t, s : st.stanza_t) : { string : any }
11435
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parents:
diff changeset
157 local out : { string : any } = {}
11461
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parents: 11459
diff changeset
158 if schema is json_schema_object and schema.properties then
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
159 for prop, propschema in pairs(schema.properties) do
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
160
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
parents: 11455
diff changeset
161 local proptype, value_where, name, namespace, prefix, single_attribute, enums = unpack_propschema(propschema, prop, s.attr.xmlns)
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
162
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
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diff changeset
163 if value_where == "in_children" and propschema is json_schema_object then
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
164 if proptype == "object" then
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
165 local c = s:get_child(name, namespace)
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
166 if c then
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
167 out[prop] = parse_object(propschema, c);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
168 end
11457
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parents: 11456
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169 elseif proptype == "array" then
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parents: 11456
diff changeset
170 out[prop] = parse_array(propschema, s);
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Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
171 else
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Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
172 error "unreachable"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
173 end
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
174 elseif value_where == "in_wrapper" and propschema is json_schema_object and proptype == "array" then
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
175 local wrapper = s:get_child(name, namespace);
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
176 if wrapper then
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
177 out[prop] = parse_array(propschema, wrapper);
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
178 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
179 else
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
180 local value : string = extract_value (s, value_where, proptype, name, namespace, prefix, single_attribute, enums)
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
181
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
182 out[prop] = totype(proptype, value)
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
183 end
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
184 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
185 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
186
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
187 return out
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
188 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
189
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
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parents: 11459
diff changeset
190 function parse_array (schema : json_schema_object, s : st.stanza_t) : { any }
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
191 local itemschema : schema_t = schema.items;
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
192 local proptype, value_where, child_name, namespace, prefix, single_attribute, enums = unpack_propschema(itemschema, nil, s.attr.xmlns)
11466
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
193 local attr_name : string
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
194 if value_where == "in_single_attribute" then -- FIXME this shouldn't be needed
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
195 value_where = "in_attribute";
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
196 attr_name = single_attribute;
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
197 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
198 local out : { any } = {}
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
199
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
200 if proptype == "object" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
201 if itemschema is json_schema_object then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
202 for c in s:childtags(child_name, namespace) do
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
203 table.insert(out, parse_object(itemschema, c));
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
204 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
205 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
206 error "array items must be schema object"
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
207 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
208 elseif proptype == "array" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
209 if itemschema is json_schema_object then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
210 for c in s:childtags(child_name, namespace) do
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
211 table.insert(out, parse_array(itemschema, c));
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
212 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
213 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
214 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
215 for c in s:childtags(child_name, namespace) do
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
216 local value : string = extract_value (c, value_where, proptype, attr_name or child_name, namespace, prefix, single_attribute, enums)
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
217
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
218 table.insert(out, totype(proptype, value));
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
219 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
220 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
221 return out;
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
222 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
223
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
224 local function parse (schema : json_schema_object, s : st.stanza_t) : table
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
225 if schema.type == "object" then
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
226 return parse_object(schema, s)
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
227 elseif schema.type == "array" then
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
228 return parse_array(schema, s)
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
229 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
230 error "top-level scalars unsupported"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
231 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
232 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
233
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
234 local unparse : function (json_schema_object, table, string, string, st.stanza_t) : st.stanza_t
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
235
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
236 local function unparse_property(out : st.stanza_t, v : any, proptype : json_type_name, propschema : schema_t, value_where : value_goes, name : string, namespace : string, current_ns : string, prefix : string, single_attribute : string)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
237 if value_where == "in_attribute" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
238 local attr = name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
239 if prefix then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
240 attr = prefix .. ':' .. name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
241 elseif namespace ~= current_ns then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
242 attr = namespace .. "\1" .. name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
243 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
244
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
245 if proptype == "string" and v is string then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
246 out.attr[attr] = v
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
247 elseif proptype == "number" and v is number then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
248 out.attr[attr] = string.format("%g", v)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
249 elseif proptype == "integer" and v is number then -- TODO is integer
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
250 out.attr[attr] = string.format("%d", v)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
251 elseif proptype == "boolean" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
252 out.attr[attr] = v and "1" or "0"
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
253 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
254 elseif value_where == "in_text" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
255 if v is string then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
256 out:text(v)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
257 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
258 elseif value_where == "in_single_attribute" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
259 assert(single_attribute)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
260 local propattr : { string : string } = {}
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
261
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
262 if namespace ~= current_ns then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
263 propattr.xmlns = namespace
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Kim Alvefur <zash@zash.se>
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264 end
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Kim Alvefur <zash@zash.se>
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diff changeset
265
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Kim Alvefur <zash@zash.se>
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diff changeset
266 if proptype == "string" and v is string then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
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267 propattr[single_attribute] = v
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diff changeset
268 elseif proptype == "number" and v is number then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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diff changeset
269 propattr[single_attribute] = string.format("%g", v)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
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diff changeset
270 elseif proptype == "integer" and v is number then -- TODO is integer
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Kim Alvefur <zash@zash.se>
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diff changeset
271 propattr[single_attribute] = string.format("%d", v)
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diff changeset
272 elseif proptype == "boolean" and v is boolean then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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diff changeset
273 propattr[single_attribute] = v and "1" or "0"
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
274 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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diff changeset
275 out:tag(name, propattr):up();
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
276
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
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diff changeset
277 else
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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diff changeset
278 local propattr : { string : string }
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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diff changeset
279 if namespace ~= current_ns then
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280 propattr = { xmlns = namespace }
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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281 end
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Kim Alvefur <zash@zash.se>
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diff changeset
282 if value_where == "in_tag_name" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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diff changeset
283 if proptype == "string" and v is string then
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
284 out:tag(v, propattr):up();
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diff changeset
285 elseif proptype == "boolean" and v == true then
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Kim Alvefur <zash@zash.se>
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diff changeset
286 out:tag(name, propattr):up();
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
287 end
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Kim Alvefur <zash@zash.se>
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diff changeset
288 elseif proptype == "string" and v is string then
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
289 out:text_tag(name, v, propattr)
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parents: 11466
diff changeset
290 elseif proptype == "number" and v is number then
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
291 out:text_tag(name, string.format("%g", v), propattr)
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parents: 11466
diff changeset
292 elseif proptype == "integer" and v is number then -- TODO is integer
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
293 out:text_tag(name, string.format("%d", v), propattr)
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
294 elseif proptype == "boolean" and v is boolean then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
295 out:text_tag(name, v and "1" or "0", propattr)
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
296 elseif proptype == "object" and propschema is json_schema_object and v is table then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
297 local c = unparse(propschema, v, name, namespace);
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diff changeset
298 if c then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
299 out:add_direct_child(c);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
300 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
301 elseif proptype == "array" and propschema is json_schema_object and v is table then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
302 if value_where == "in_wrapper" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
303 local c = unparse(propschema, v, name, namespace);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
304 if c then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
305 out:add_direct_child(c);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
306 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
307 else
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
308 unparse(propschema, v, name, namespace, out);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
309 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
310 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
311 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
312 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
313
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
314 function unparse ( schema : json_schema_object, t : table, current_name : string, current_ns : string, ctx : st.stanza_t ) : st.stanza_t
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
315
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
316 if schema.xml then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
317 if schema.xml.name then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
318 current_name = schema.xml.name
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
319 end
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
320 if schema.xml.namespace then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
321 current_ns = schema.xml.namespace
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
322 end
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
323 -- TODO prefix?
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
324 end
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
325
11462
d1982b7eb00d util.datamapper: Fix arrays nesting one level too deep
Kim Alvefur <zash@zash.se>
parents: 11461
diff changeset
326 local out = ctx or st.stanza(current_name, { xmlns = current_ns })
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
327
11458
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
328 if schema.type == "object" then
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
329
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
330 for prop, propschema in pairs(schema.properties) do
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
331 local v = t[prop]
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
332
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
333 if v ~= nil then
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
parents: 11455
diff changeset
334 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(propschema, prop, current_ns)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
335 unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix, single_attribute)
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
336 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
337 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
338 return out;
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
339
11458
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
340 elseif schema.type == "array" then
11468
348b191cd850 util.datamapper: Complete array building support
Kim Alvefur <zash@zash.se>
parents: 11467
diff changeset
341 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(schema.items, current_name, current_ns)
348b191cd850 util.datamapper: Complete array building support
Kim Alvefur <zash@zash.se>
parents: 11467
diff changeset
342 for _, item in ipairs(t as { string }) do
348b191cd850 util.datamapper: Complete array building support
Kim Alvefur <zash@zash.se>
parents: 11467
diff changeset
343 unparse_property(out, item, proptype, schema.items, value_where, name, namespace, current_ns, prefix, single_attribute)
11458
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
344 end
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
345 return out;
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
346 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
347 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
348
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
349 return {
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
350 parse = parse,
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
351 unparse = unparse,
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
352 }