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local core = require "core"
local config = require "core.config"
local DocView = require "core.docview"
local command = require "core.command"
local keymap = require "core.keymap"
config.autoinsert_map = {
["["] = "]",
["{"] = "}",
["("] = ")",
['"'] = '"',
}
local function is_closer(chr)
for _, v in pairs(config.autoinsert_map) do
if v == chr then
return true
end
end
end
local on_text_input = DocView.on_text_input
function DocView:on_text_input(text)
local mapping = config.autoinsert_map[text]
-- prevents plugin from operating on `CommandView`
if getmetatable(self) ~= DocView then
return on_text_input(self, text)
end
-- wrap selection if we have a selection
if mapping and self.doc:has_selection() then
local l1, c1, l2, c2, swap = self.doc:get_selection(true)
self.doc:insert(l2, c2, mapping)
self.doc:insert(l1, c1, text)
self.doc:set_selection(l1, c1, l2, c2 + 2, swap)
return
end
-- skip inserting closing text
local chr = self.doc:get_char(self.doc:get_selection())
if text == chr and is_closer(chr) then
self.doc:move_to(1)
return
end
-- auto insert closing bracket
if mapping and (chr:find("%s") or is_closer(chr) and chr ~= '"') then
on_text_input(self, text)
on_text_input(self, mapping)
self.doc:move_to(-1)
return
end
on_text_input(self, text)
end
command.add("core.docview", {
["autoinsert:backspace"] = function()
local doc = core.active_view.doc
local l, c = doc:get_selection()
local chr = doc:get_char(l, c)
if config.autoinsert_map[doc:get_char(l, c - 1)] and is_closer(chr) then
doc:delete_to(1)
end
command.perform "doc:backspace"
end,
})
keymap.add { ["backspace"] = "autoinsert:backspace" }
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