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--
-- melisma - extensible and scriptable audio engine
-- Copyright (C) 2026 Ludvig Gunne Lindström
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 3 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <https://www.gnu.org/licenses/>.
--
local module = {}
function module.render(layout)
local lines = {}
local function append(format,...)
local line = string.format(format,...)
table.insert(lines,line)
end
append('digraph {')
append('rankdir=BT')
append('node [shape=rect]')
for id,node in pairs(layout) do
append('"%s" [label="%s"]',id,node.label or '?')
end
for id,node in pairs(layout) do
for _,input in ipairs(node.inputs) do
append('"%s" -> "%s"',input,id)
end
end
append('}')
return table.concat(lines,'\n')
end
return module
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