61 lines
2 KiB
Nix
61 lines
2 KiB
Nix
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with builtins;
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rec {
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escapeXML = string:
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replaceStrings
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[ "&" "<" ">" "\"" "'" ]
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[ "&" "<" ">" """ "'" ]
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(toString string);
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generateXMLInner = { obj, indent ? 0 }:
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let
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indentStr = concatStringsSep "" (genList (_: " ") indent);
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in
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if isList obj then
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concatStringsSep ""
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(
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map (x: generateXMLInner { obj = x; indent = indent; }) obj
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)
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else if isAttrs obj then
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concatStringsSep ""
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(
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map
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(key:
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let
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objValue = obj.${key};
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value = objValue._value or objValue;
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opener = "\n${indentStr}<${key}";
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attributes =
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if objValue ? _attrs then
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concatStringsSep ""
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(
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map
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(attrName:
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let
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attrValue = objValue._attrs.${attrName};
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in
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if attrValue == null then ""
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else " ${attrName}=\"${escapeXML attrValue}\""
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)
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(attrNames objValue._attrs)
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)
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else "";
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contentAndCloser =
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if isAttrs value && length (attrNames value) == 0 ||
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isList value && length value == 0 then
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" />"
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else if isString value || isInt value then
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">${escapeXML value}</${key}>"
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else
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">${generateXMLInner { obj = value; indent = indent + 2; }}\n${indentStr}</${key}>";
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in
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if key == "_attrs" || key == "_value" then ""
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else "${opener}${attributes}${contentAndCloser}"
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)
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(attrNames obj)
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)
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else escapeXML obj;
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generateXML = obj:
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"<?xml version=\"1.0\" encoding=\"UTF-8\"?>${generateXMLInner { obj = obj; }}";
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}
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