author | Kim Alvefur <zash@zash.se> |
Wed, 10 Mar 2021 00:19:45 +0100 | |
changeset 11456 | c799bac7ca59 |
parent 11455 | ee4f2296e7df |
child 11457 | f0037234b2e9 |
permissions | -rw-r--r-- |
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-- Copyright (C) 2021 Kim Alvefur |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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-- Based on |
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-- https://json-schema.org/draft/2020-12/json-schema-core.html |
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-- https://json-schema.org/draft/2020-12/json-schema-validation.html |
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-- http://spec.openapis.org/oas/v3.0.1#xmlObject |
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-- https://github.com/OAI/OpenAPI-Specification/issues/630 (text:true) |
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-- |
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-- XML Object Extensions: |
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-- text to refer to the text content at the same time as attributes |
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-- x_name_is_value for enum fields where the <tag-name/> is the value |
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-- x_single_attribute for <tag attr="this"/> |
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-- |
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-- TODO arrays |
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-- TODO pointers |
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-- TODO cleanup / refactor |
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-- |
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local st = require "util.stanza"; |
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local js = require "util.jsonschema" |
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local function toboolean ( s : string ) : boolean |
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if s == "true" or s == "1" then |
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return true |
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elseif s == "false" or s == "0" then |
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return false |
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end |
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end |
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local function parse_object (schema : js.schema_t, s : st.stanza_t) : table |
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local out : { string : any } = {} |
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if schema.properties then |
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for prop, propschema in pairs(schema.properties) do |
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-- TODO factor out, if it's generic enough |
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local name = prop |
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local namespace = s.attr.xmlns; |
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local prefix : string = nil |
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local is_attribute = false |
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local is_text = false |
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local name_is_value = false; |
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local single_attribute : string |
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local proptype : js.schema_t.type_e |
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if propschema is js.schema_t then |
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proptype = propschema.type |
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elseif propschema is js.schema_t.type_e then |
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proptype = propschema |
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end |
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if propschema is js.schema_t and propschema.xml then |
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if propschema.xml.name then |
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name = propschema.xml.name |
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end |
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if propschema.xml.namespace then |
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namespace = propschema.xml.namespace |
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end |
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if propschema.xml.prefix then |
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prefix = propschema.xml.prefix |
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end |
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if propschema.xml.attribute then |
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is_attribute = true |
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elseif propschema.xml.text then |
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-- XXX Not yet in OpenAPI |
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is_text = true |
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elseif propschema.xml.x_name_is_value then |
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-- XXX Custom extension |
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name_is_value = true |
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elseif propschema.xml.x_single_attribute then |
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-- XXX Custom extension |
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single_attribute = propschema.xml.x_single_attribute |
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end |
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end |
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|
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if name_is_value then |
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local c = s:get_child(nil, namespace); |
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if c and proptype == "string" then |
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out[prop] = c.name; |
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elseif proptype == "boolean" and c then |
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out[prop] = true; |
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end |
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elseif is_attribute then |
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local attr = name |
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if prefix then |
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attr = prefix .. ':' .. name |
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elseif namespace ~= s.attr.xmlns then |
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attr = namespace .. "\1" .. name |
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end |
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if proptype == "string" then |
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out[prop] = s.attr[attr] |
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elseif proptype == "integer" or proptype == "number" then |
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-- TODO floor if integer ? |
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out[prop] = tonumber(s.attr[attr]) |
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elseif proptype == "boolean" then |
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out[prop] = toboolean(s.attr[attr]) |
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-- else TODO |
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end |
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|
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elseif is_text then |
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if proptype == "string" then |
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out[prop] = s:get_text() |
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elseif proptype == "integer" or proptype == "number" then |
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out[prop] = tonumber(s:get_text()) |
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end |
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|
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elseif single_attribute then |
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local c = s:get_child(name, namespace) |
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local a = c and c.attr[single_attribute] |
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if proptype == "string" then |
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out[prop] = a |
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elseif proptype == "integer" or proptype == "number" then |
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out[prop] = tonumber(a) |
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elseif proptype == "boolean" then |
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out[prop] = toboolean(a) |
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117 |
end |
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|
118 |
else |
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|
119 |
|
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120 |
if proptype == "string" then |
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121 |
out[prop] = s:get_child_text(name, namespace) |
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122 |
elseif proptype == "integer" or proptype == "number" then |
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123 |
out[prop] = tonumber(s:get_child_text(name, namespace)) |
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124 |
elseif proptype == "object" and propschema is js.schema_t then |
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125 |
local c = s:get_child(name, namespace) |
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126 |
if c then |
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127 |
out[prop] = parse_object(propschema, c); |
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128 |
end |
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|
129 |
-- else TODO |
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130 |
end |
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131 |
end |
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|
132 |
end |
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|
133 |
end |
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|
134 |
|
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135 |
return out |
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|
136 |
end |
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|
137 |
|
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138 |
local function parse (schema : js.schema_t, s : st.stanza_t) : table |
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139 |
if schema.type == "object" then |
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140 |
return parse_object(schema, s) |
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|
141 |
end |
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|
142 |
end |
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|
143 |
|
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144 |
local function unparse ( schema : js.schema_t, t : table, current_name : string, current_ns : string ) : st.stanza_t |
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145 |
if schema.type == "object" then |
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146 |
|
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147 |
if schema.xml then |
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148 |
if schema.xml.name then |
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149 |
current_name = schema.xml.name |
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150 |
end |
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|
151 |
if schema.xml.namespace then |
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152 |
current_ns = schema.xml.namespace |
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153 |
end |
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|
154 |
-- TODO prefix? |
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|
155 |
end |
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|
156 |
|
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|
157 |
local out = st.stanza(current_name, { xmlns = current_ns }) |
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|
158 |
|
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|
159 |
for prop, propschema in pairs(schema.properties) do |
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|
160 |
local v = t[prop] |
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|
161 |
|
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|
162 |
if v ~= nil then |
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|
163 |
local proptype : js.schema_t.type_e |
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|
164 |
if propschema is js.schema_t then |
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|
165 |
proptype = propschema.type |
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|
166 |
elseif propschema is js.schema_t.type_e then |
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|
167 |
proptype = propschema |
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|
168 |
end |
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changeset
|
169 |
|
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|
170 |
local name = prop |
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|
171 |
local namespace = current_ns |
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|
172 |
local prefix : string = nil |
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|
173 |
local is_attribute = false |
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|
174 |
local is_text = false |
11441
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diff
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|
175 |
local name_is_value = false; |
11443
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|
176 |
local single_attribute : string |
11440
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changeset
|
177 |
|
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|
178 |
if propschema is js.schema_t and propschema.xml then |
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diff
changeset
|
179 |
|
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|
180 |
if propschema.xml.name then |
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|
181 |
name = propschema.xml.name |
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changeset
|
182 |
end |
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parents:
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diff
changeset
|
183 |
if propschema.xml.namespace then |
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parents:
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diff
changeset
|
184 |
namespace = propschema.xml.namespace |
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diff
changeset
|
185 |
end |
5df9ffc25bb4
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parents:
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diff
changeset
|
186 |
|
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parents:
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diff
changeset
|
187 |
if propschema.xml.prefix then |
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changeset
|
188 |
prefix = propschema.xml.prefix |
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diff
changeset
|
189 |
end |
5df9ffc25bb4
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parents:
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diff
changeset
|
190 |
|
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parents:
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diff
changeset
|
191 |
if propschema.xml.attribute then |
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changeset
|
192 |
is_attribute = true |
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diff
changeset
|
193 |
elseif propschema.xml.text then |
5df9ffc25bb4
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parents:
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changeset
|
194 |
is_text = true |
11441
87a684df4b65
util.datamapper: Invent extension for using tag name as value
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parents:
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diff
changeset
|
195 |
elseif propschema.xml.x_name_is_value then |
87a684df4b65
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|
196 |
name_is_value = true |
11443
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parents:
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diff
changeset
|
197 |
elseif propschema.xml.x_single_attribute then |
9abcdfdcdb01
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parents:
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changeset
|
198 |
single_attribute = propschema.xml.x_single_attribute |
11440
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diff
changeset
|
199 |
end |
5df9ffc25bb4
util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents:
11439
diff
changeset
|
200 |
end |
5df9ffc25bb4
util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents:
11439
diff
changeset
|
201 |
|
5df9ffc25bb4
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Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
202 |
if is_attribute then |
5df9ffc25bb4
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parents:
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diff
changeset
|
203 |
local attr = name |
5df9ffc25bb4
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parents:
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diff
changeset
|
204 |
if prefix then |
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parents:
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diff
changeset
|
205 |
attr = prefix .. ':' .. name |
5df9ffc25bb4
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Kim Alvefur <zash@zash.se>
parents:
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diff
changeset
|
206 |
elseif namespace ~= current_ns then |
5df9ffc25bb4
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parents:
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diff
changeset
|
207 |
attr = namespace .. "\1" .. name |
5df9ffc25bb4
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diff
changeset
|
208 |
end |
5df9ffc25bb4
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parents:
11439
diff
changeset
|
209 |
|
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parents:
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diff
changeset
|
210 |
if proptype == "string" and v is string then |
5df9ffc25bb4
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parents:
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diff
changeset
|
211 |
out.attr[attr] = v |
5df9ffc25bb4
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parents:
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diff
changeset
|
212 |
elseif proptype == "number" and v is number then |
5df9ffc25bb4
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parents:
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diff
changeset
|
213 |
out.attr[attr] = string.format("%g", v) |
5df9ffc25bb4
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parents:
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diff
changeset
|
214 |
elseif proptype == "integer" and v is number then |
5df9ffc25bb4
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parents:
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diff
changeset
|
215 |
out.attr[attr] = string.format("%d", v) |
5df9ffc25bb4
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diff
changeset
|
216 |
elseif proptype == "boolean" then |
5df9ffc25bb4
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changeset
|
217 |
out.attr[attr] = v and "1" or "0" |
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|
218 |
end |
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changeset
|
219 |
elseif is_text then |
5df9ffc25bb4
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changeset
|
220 |
if v is string then |
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changeset
|
221 |
out:text(v) |
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changeset
|
222 |
end |
11443
9abcdfdcdb01
util.datamapper: Add support for mapping of elements where only one attribute matters
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parents:
11442
diff
changeset
|
223 |
elseif single_attribute then |
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diff
changeset
|
224 |
local propattr : { string : string } = {} |
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changeset
|
225 |
|
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diff
changeset
|
226 |
if namespace ~= current_ns then |
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|
227 |
propattr.xmlns = namespace |
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end |
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|
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if proptype == "string" and v is string then |
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propattr[single_attribute] = v |
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elseif proptype == "number" and v is number then |
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propattr[single_attribute] = string.format("%g", v) |
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elseif proptype == "integer" and v is number then |
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propattr[single_attribute] = string.format("%d", v) |
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elseif proptype == "boolean" and v is boolean then |
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propattr[single_attribute] = v and "1" or "0" |
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end |
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out:tag(name, propattr):up(); |
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|
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else |
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local propattr : { string : string } |
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if namespace ~= current_ns then |
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propattr = { xmlns = namespace } |
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end |
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if name_is_value then |
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if proptype == "string" and v is string then |
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out:tag(v, propattr):up(); |
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elseif proptype == "boolean" and v == true then |
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out:tag(name, propattr):up(); |
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end |
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elseif proptype == "string" and v is string then |
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out:text_tag(name, v, propattr) |
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elseif proptype == "number" and v is number then |
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out:text_tag(name, string.format("%g", v), propattr) |
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elseif proptype == "integer" and v is number then |
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out:text_tag(name, string.format("%d", v), propattr) |
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elseif proptype == "boolean" and v is boolean then |
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out:text_tag(name, v and "1" or "0", propattr) |
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elseif proptype == "object" and propschema is js.schema_t and v is table then |
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local c = unparse(propschema, v, name, namespace); |
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if c then |
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out:add_direct_child(c); |
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end |
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-- else TODO |
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266 |
end |
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end |
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268 |
end |
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269 |
end |
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return out; |
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271 |
|
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272 |
end |
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273 |
end |
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274 |
|
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return { |
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parse = parse, |
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unparse = unparse, |
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} |