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-- HF stands for High Frequency.
-- This Module augments the built-in HF
local HF = mw.InfoboxBuilderHF
 
----------------------------
-- Libraries of functions --
----------------------------
-- Parses invocation parameters, trims whitespace, and removes blanks
local getArgs = require('Dev:Arguments').getArgs
 
-- need frame function 
function HF._stripFileWrapper (s)
  if type(s) == 'string' then
    return (s
        :gsub("%[*(.*)", '%1') -- leading brackets
        :gsub("([%a]*)|+.*", '%1') -- arguments
        :gsub("([%a]*)%]*", '%1') -- closing brackets
        )
  else
    return false
  end
end
 
----------------------
-- Public functions --
----------------------
-- eliminates the link portion wikitext of a File: call, leaving only the bare filename.
function HF.stripFileWrapper(frame)
	local args = getArgs(frame)
	return HF._stripFileWrapper(args)
end
 
return HF