23 lines
582 B
Lua
23 lines
582 B
Lua
|
-- intermediate store for variables and their values
|
||
|
|
local variables = {}
|
||
|
|
|
||
|
|
--- Function called for each raw block element.
|
||
|
|
function RawBlock (raw)
|
||
|
|
-- Don't do anything unless the block contains *org* markup.
|
||
|
|
if raw.format ~= 'org' then return nil end
|
||
|
|
|
||
|
|
-- extract variable name and value
|
||
|
|
local name, value = raw.text:match '#%+(%w+):%s*(.+)$'
|
||
|
|
if name and value then
|
||
|
|
variables[name] = value
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
-- Add the extracted variables to the document's metadata.
|
||
|
|
function Meta (meta)
|
||
|
|
for name, value in pairs(variables) do
|
||
|
|
meta[name] = value
|
||
|
|
end
|
||
|
|
return meta
|
||
|
|
end
|