54 lines
1.5 KiB
Lua
54 lines
1.5 KiB
Lua
-- FIXME: Not sure yet if this will be needed
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local function escape_name(name)
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return name
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end
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local escapes = {
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['"'] = """,
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['<'] = "<",
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['>'] = ">",
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['&'] = "&",
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}
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local function escape_text(text)
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return string.gsub(tostring(text), '["<>&]', escapes)
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end
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local attrs = {}
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local function write_elem(tree, indent)
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if not tree[0] then print('ERR', require'inspect'(tree)) end
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local escaped_name = escape_name(assert(tree[0]))
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local i = 0
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for attr, val in next, tree do if type(attr) == 'string' and string.byte(attr) ~= 0x3A then
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i = i + 1
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attrs[i] = string.format(' %s="%s"', escape_name(attr), escape_text(val))
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end end
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table.sort(attrs)
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local out = string.format('%s<%s%s', indent or '', escaped_name, table.concat(attrs))
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for j = 1, i do attrs[j] = nil end
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if not tree[1] then
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return out .. '/>'
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end
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out = out .. '>'
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local inner_indent = indent and indent .. ' '
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local is_string
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for _, elem in ipairs(tree) do
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if type(elem) == 'string' then
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if inner_indent and not is_string then
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out = out .. inner_indent
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end
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out = out .. escape_text(elem)
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is_string = true
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else
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out = out .. write_elem(elem, inner_indent)
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is_string = nil
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end
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end
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if indent then out = out .. indent end
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return out .. '</' .. escaped_name .. '>'
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end
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return function(element, indent, version)
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return (version == '11' and '<?xml version="1.1"?>' or '') ..
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write_elem(element, indent and '\n' or nil)
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end
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