-- Inserts a generator meta tag (if it doesn't exist in the page already)
--
-- [widgets.insert-generator-meta]
-- widget = "generator-meta"
--
-- Minimum soupault version: 2.0
-- Author: Daniil Baturin
-- License: MIT
if HTML.select_one(page, "head meta[name=\"generator\"]") then
Log.debug("Page already has a generator meta tag, ignoring")
else
Log.debug("Inserting the generator meta tag")
-- Create the element
--
-- We use HTML.parse rather than HTML.create_element and HTML.set_attribute
-- because HTML.set_attribute doesn't guarantee attribute order,
-- and we want the name attribute to come before the content attribute,
-- the way a human would write it.
generator_meta = HTML.parse(format([[]], Plugin.soupault_version()))
-- Try to group the new tag with existing tags
first_existing_meta = HTML.select_one(page, "head meta")
if first_existing_meta then
HTML.insert_before(first_existing_meta, generator_meta)
else
head = HTML.select_one(page, "head")
if head then
HTML.append_child(head, meta)
else
Log.warning("Page has no element, nowhere to insert a generator meta tag")
end
end
end