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local core = require "core"
local command = require "core.command"
local Doc = require "core.doc"
local function trim_trailing_whitespace(doc)
for i = 1, #doc.lines do
local old_text = doc:get_text(i, 1, i, math.huge)
local new_text = old_text:gsub("%s*$", "")
if old_text ~= new_text then
doc:insert(i, 1, new_text)
doc:remove(i, #new_text + 1, i, math.huge)
end
end
end
command.add("core.docview", {
["trim-whitespace:trim-trailing-whitespace"] = function()
trim_trailing_whitespace(self.active_view.doc)
end,
})
local save = Doc.save
Doc.save = function(self, ...)
trim_trailing_whitespace(self)
save(self, ...)
end
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