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teal-src/util/datamapper.tl

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teal-src/util/datamapper.tl @ 11457:6a51749af7f4

util.datamapper: Add initial support for parsing arrays
author Kim Alvefur <zash@zash.se>
date Thu, 18 Mar 2021 12:57:25 +0100
parent 11456:4e376a43fe40
child 11458:0e00fa518688
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 arrays
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18 -- TODO pointers
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19 -- TODO cleanup / refactor
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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 js = require "util.jsonschema"
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24
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25 local function toboolean ( s : string ) : boolean
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26 if s == "true" or s == "1" then
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27 return true
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28 elseif s == "false" or s == "0" then
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29 return false
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30 elseif s then
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31 return true
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32 end
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33 end
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34
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35 local function totype(t : js.schema_t.type_e, s : string) : any
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36 if t == "string" then
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37 return s;
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38 elseif t == "boolean" then
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39 return toboolean(s)
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40 elseif t == "number" or t == "integer" then
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41 return tonumber(s)
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42 end
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43 end
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44
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45 local enum value_goes
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46 "in_tag_name"
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47 "in_text"
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48 "in_text_tag"
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49 "in_attribute"
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50 "in_single_attribute"
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51 "in_children"
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52 "in_wrapper"
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53 end
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54
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55 local function unpack_propschema( propschema : js.schema_t | js.schema_t.type_e, propname : string, current_ns : string )
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56 : js.schema_t.type_e, value_goes, string, string, string, string, { any }
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57 local proptype : js.schema_t.type_e = "string"
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58 local value_where : value_goes = "in_text_tag"
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59 local name = propname
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60 local namespace = current_ns
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61 local prefix : string
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62 local single_attribute : string
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63 local enums : { any }
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64
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65 if propschema is js.schema_t then
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66 proptype = propschema.type
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67 elseif propschema is js.schema_t.type_e then
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68 proptype = propschema
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69 end
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70
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71 if proptype == "object" or proptype == "array" then
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72 value_where = "in_children"
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73 end
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74
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75 if propschema is js.schema_t then
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76 local xml = propschema.xml
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77 if xml then
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78 if xml.name then
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79 name = xml.name
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80 end
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81 if xml.namespace then
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82 namespace = xml.namespace
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83 end
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84 if xml.prefix then
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85 prefix = xml.prefix
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86 end
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87 if proptype == "array" and xml.wrapped then
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88 value_where = "in_wrapper"
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89 elseif xml.attribute then
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90 value_where = "in_attribute"
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91 elseif xml.text then
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92 value_where = "in_text"
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93 elseif xml.x_name_is_value then
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94 value_where = "in_tag_name"
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95 elseif xml.x_single_attribute then
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96 single_attribute = xml.x_single_attribute
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97 value_where = "in_single_attribute"
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98 end
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99 end
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100 if propschema["const"] then
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101 enums = { propschema["const"] }
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102 elseif propschema["enum"] then
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103 enums = propschema["enum"]
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104 end
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105 end
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106
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107 return proptype, value_where, name, namespace, prefix, single_attribute, enums
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108 end
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109
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110 local parse_object : function (schema : js.schema_t, s : st.stanza_t) : { string : any }
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111 local parse_array : function (schema : js.schema_t, s : st.stanza_t) : { any }
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112
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113 function parse_object (schema : js.schema_t, s : st.stanza_t) : { string : any }
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114 local out : { string : any } = {}
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115 if schema.properties then
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116 for prop, propschema in pairs(schema.properties) do
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117
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118 local proptype, value_where, name, namespace, prefix, single_attribute, enums = unpack_propschema(propschema, prop, s.attr.xmlns)
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119
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120 local value : string
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121 if value_where == "in_tag_name" then
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122 local c : st.stanza_t
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123 if proptype == "boolean" then
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124 c = s:get_child(name, namespace);
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125 elseif enums and proptype == "string" then
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126 -- XXX O(n²) ?
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127 -- Probably better to flip the table and loop over :childtags(nil, ns), should be 2xO(n)
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128 -- BUT works first, optimize later
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129 for i = 1, #enums do
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130 c = s:get_child(enums[i] as string, namespace);
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131 if c then break end
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132 end
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133 else
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134 c = s:get_child(nil, namespace);
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diff changeset
135 end
11455
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Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
136 value = c.name;
11454
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Kim Alvefur <zash@zash.se>
parents: 11453
diff changeset
137 elseif value_where == "in_attribute" then
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
138 local attr = name
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
139 if prefix then
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
140 attr = prefix .. ':' .. name
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
141 elseif namespace ~= s.attr.xmlns then
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
142 attr = namespace .. "\1" .. name
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 end
11455
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Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
144 value = s.attr[attr]
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
145
11454
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Kim Alvefur <zash@zash.se>
parents: 11453
diff changeset
146 elseif value_where == "in_text" then
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
147 value = s:get_text()
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
148
11454
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Kim Alvefur <zash@zash.se>
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diff changeset
149 elseif value_where == "in_single_attribute" then
11439
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
150 local c = s:get_child(name, namespace)
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
151 value = c and c.attr[single_attribute]
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Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
152 elseif value_where == "in_text_tag" then
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Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
153 value = s:get_child_text(name, namespace)
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Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
154 elseif value_where == "in_children" and propschema is js.schema_t then
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
155 if proptype == "object" then
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
156 local c = s:get_child(name, namespace)
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
157 if c then
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
158 out[prop] = parse_object(propschema, c);
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
159 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
160 elseif proptype == "array" then
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
161 out[prop] = parse_array(propschema, s);
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
162 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
163 error "unreachable"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
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diff changeset
165 elseif value_where == "in_wrapper" and propschema is js.schema_t and proptype == "array" then
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
166 local wrapper = s:get_child(name, namespace);
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Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
167 if wrapper then
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parents: 11456
diff changeset
168 out[prop] = parse_array(propschema, wrapper);
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
169 else
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Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
170 error "unreachable"
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
171 end
11457
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Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
172 else
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Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
173 error "unreachable"
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
174 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
175 if value_where ~= "in_children" and value_where ~= "in_wrapper" then
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
176 out[prop] = totype(proptype, value)
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Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
177 end
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
178 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
179 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
180
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
181 return out
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
182 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
183
11457
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Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
184 function parse_array (schema : js.schema_t, s : st.stanza_t) : { any }
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
185 local proptype, value_where, child_name, namespace = unpack_propschema(schema.items, nil, s.attr.xmlns)
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
186 local out : { any } = {}
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
187 for c in s:childtags(child_name, namespace) do
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
188 local value : string;
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
189 if value_where == "in_text_tag" then
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
190 value = c:get_text();
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
191 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
192 error "NYI"
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
193 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
194
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
195 if value ~= nil then
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
196 table.insert(out, value);
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
197 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
198 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
199 return out;
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
200 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
201
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
202 local function parse (schema : js.schema_t, s : st.stanza_t) : table
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203 if schema.type == "object" then
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
204 return parse_object(schema, s)
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
205 elseif schema.type == "array" then
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
206 return parse_array(schema, s)
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
207 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
208 error "top-level scalars unsupported"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
209 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
210 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
211
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
212 local function unparse ( schema : js.schema_t, t : table, current_name : string, current_ns : string ) : st.stanza_t
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
213 if schema.type == "object" then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
214
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
215 if schema.xml then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
216 if schema.xml.name then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
217 current_name = schema.xml.name
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
218 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
219 if schema.xml.namespace then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
220 current_ns = schema.xml.namespace
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
221 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
222 -- TODO prefix?
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
223 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
224
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
225 local out = st.stanza(current_name, { xmlns = current_ns })
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
226
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
227 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
228 local v = t[prop]
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
229
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
230 if v ~= nil then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
231
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
parents: 11455
diff changeset
232 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(propschema, prop, current_ns)
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
233
11454
1d9c1893cc5e util.datamapper: Use enum instead of mutually exclusive booleans
Kim Alvefur <zash@zash.se>
parents: 11453
diff changeset
234 if value_where == "in_attribute" then
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
235 local attr = name
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
236 if prefix then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
237 attr = prefix .. ':' .. name
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
238 elseif namespace ~= current_ns then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
239 attr = namespace .. "\1" .. name
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
240 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
241
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
242 if proptype == "string" and v is string then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
243 out.attr[attr] = v
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
244 elseif proptype == "number" and v is number then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
245 out.attr[attr] = string.format("%g", v)
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
246 elseif proptype == "integer" and v is number then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
247 out.attr[attr] = string.format("%d", v)
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
248 elseif proptype == "boolean" then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
249 out.attr[attr] = v and "1" or "0"
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
250 end
11454
1d9c1893cc5e util.datamapper: Use enum instead of mutually exclusive booleans
Kim Alvefur <zash@zash.se>
parents: 11453
diff changeset
251 elseif value_where == "in_text" then
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
252 if v is string then
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
253 out:text(v)
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
254 end
11454
1d9c1893cc5e util.datamapper: Use enum instead of mutually exclusive booleans
Kim Alvefur <zash@zash.se>
parents: 11453
diff changeset
255 elseif value_where == "in_single_attribute" then
11439
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
256 local propattr : { string : string } = {}
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
257
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
258 if namespace ~= current_ns then
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
259 propattr.xmlns = namespace
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
260 end
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
261
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
262 if proptype == "string" and v is string then
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
263 propattr[single_attribute] = v
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
264 elseif proptype == "number" and v is number then
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
265 propattr[single_attribute] = string.format("%g", v)
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
266 elseif proptype == "integer" and v is number then
9abcdfdcdb01 util.datamapper: Add support for mapping of elements where only one attribute matters
Kim Alvefur <zash@zash.se>
parents: 11438
diff changeset
267 propattr[single_attribute] = string.format("%d", v)
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268 elseif proptype == "boolean" and v is boolean then
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269 propattr[single_attribute] = v and "1" or "0"
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270 end
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271 out:tag(name, propattr):up();
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272
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273 else
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274 local propattr : { string : string }
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275 if namespace ~= current_ns then
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276 propattr = { xmlns = namespace }
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277 end
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278 if value_where == "in_tag_name" then
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279 if proptype == "string" and v is string then
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280 out:tag(v, propattr):up();
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281 elseif proptype == "boolean" and v == true then
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282 out:tag(name, propattr):up();
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283 end
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87a684df4b65 util.datamapper: Invent extension for using tag name as value
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284 elseif proptype == "string" and v is string then
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285 out:text_tag(name, v, propattr)
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286 elseif proptype == "number" and v is number then
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287 out:text_tag(name, string.format("%g", v), propattr)
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288 elseif proptype == "integer" and v is number then
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289 out:text_tag(name, string.format("%d", v), propattr)
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290 elseif proptype == "boolean" and v is boolean then
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291 out:text_tag(name, v and "1" or "0", propattr)
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292 elseif proptype == "object" and propschema is js.schema_t and v is table then
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293 local c = unparse(propschema, v, name, namespace);
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294 if c then
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295 out:add_direct_child(c);
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296 end
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297 -- else TODO
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298 end
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299 end
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300 end
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301 end
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302 return out;
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303
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304 end
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305 end
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306
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a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
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parents:
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307 return {
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308 parse = parse,
11436
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309 unparse = unparse,
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310 }