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function i.IsPlaceholder(image)
-- change underscores to spaces
image2 = mw.ustring.gsub(image, "_", " ")
-- if image starts with [[ then remove that and anything after |
if mw.ustring.sub(image2,1,2) == "[[" then
image2 = mw.ustring.sub(image2,3)
image2 = mw.ustring.gsub(image2, "([^|]*)|.*", "%1")
end
-- remove file: or image: prefix if exists
if mw.ustring.lower(mw.ustring.sub(image2,1,5)) == "file:" then
image2 = mw.ustring.sub(image2,6,mw.ustring.len(image2));
end
if mw.ustring.lower(mw.ustring.sub(image2,1,6)) == "image:" then
image2 = mw.ustring.sub(image2,7,mw.ustring.len(image2));
end
-- capitalise first letter
image2 = mw.ustring.upper(mw.ustring.sub(image2,1,1)) .. mw.ustring.sub(image2,2)
end
if stringmw.ustring.sub(image,1,2) == "[[" then
return image;
else
-- remove file: or image: prefix if exists
if stringmw.ustring.lower(stringmw.ustring.sub(image,1,5)) == "file:" then image = stringmw.ustring.sub(image,6,stringmw.ustring.len(image));
end
if stringmw.ustring.lower(stringmw.ustring.sub(image,1,6)) == "image:" then image = stringmw.ustring.sub(image,7,stringmw.ustring.len(image));
end