mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-05 13:23:17 +00:00
3c78ad2561
Syntax is taken from MyST: https://myst-parser.readthedocs.io/en/latest/using/syntax.html#targets-and-cross-referencing
25 lines
782 B
Lua
25 lines
782 B
Lua
local function starts_with(start, str)
|
|
return str:sub(1, #start) == start
|
|
end
|
|
|
|
local function escape_xml_arg(arg)
|
|
amps = arg:gsub('&', '&')
|
|
amps_quotes = amps:gsub('"', '"')
|
|
amps_quotes_lt = amps_quotes:gsub('<', '<')
|
|
|
|
return amps_quotes_lt
|
|
end
|
|
|
|
function Link(elem)
|
|
has_no_content = #elem.content == 0
|
|
targets_anchor = starts_with('#', elem.target)
|
|
has_no_attributes = elem.title == '' and elem.identifier == '' and #elem.classes == 0 and #elem.attributes == 0
|
|
|
|
if has_no_content and targets_anchor and has_no_attributes then
|
|
-- xref expects idref without the pound-sign
|
|
target_without_hash = elem.target:sub(2, #elem.target)
|
|
|
|
return pandoc.RawInline('docbook', '<xref linkend="' .. escape_xml_arg(target_without_hash) .. '" />')
|
|
end
|
|
end
|