64 lines
1.3 KiB
Lua
64 lines
1.3 KiB
Lua
|
local core = require "core"
|
||
|
|
local command = require "core.command"
|
||
|
|
local config = require "core.config"
|
||
|
|
local DocView = require "core.docview"
|
||
|
|
local Doc = require "core.doc"
|
||
|
|
|
||
|
|
local cache = setmetatable({}, { __mode = "k" })
|
||
|
|
|
||
|
|
|
||
|
|
local function detect_indent(doc)
|
||
|
|
for _, text in ipairs(doc.lines) do
|
||
|
|
local str = text:match("^ +")
|
||
|
|
if str then return "soft", #str end
|
||
|
|
local str = text:match("^\t+")
|
||
|
|
if str then return "hard" end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
local function update_cache(doc)
|
||
|
|
local type, size = detect_indent(doc)
|
||
|
|
if type then
|
||
|
|
cache[doc] = { type = type, size = size }
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
local new = Doc.new
|
||
|
|
function Doc:new(...)
|
||
|
|
new(self, ...)
|
||
|
|
update_cache(self)
|
||
|
|
end
|
||
|
|
|
||
|
|
local clean = Doc.clean
|
||
|
|
function Doc:clean(...)
|
||
|
|
clean(self, ...)
|
||
|
|
update_cache(self)
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
local function with_indent_override(doc, fn, ...)
|
||
|
|
local c = cache[doc]
|
||
|
|
if not c then
|
||
|
|
return fn(...)
|
||
|
|
end
|
||
|
|
local type, size = config.tab_type, config.indent_size
|
||
|
|
config.tab_type, config.indent_size = c.type, c.size or config.indent_size
|
||
|
|
local r1, r2, r3 = fn(...)
|
||
|
|
config.tab_type, config.indent_size = type, size
|
||
|
|
return r1, r2, r3
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
local perform = command.perform
|
||
|
|
function command.perform(...)
|
||
|
|
return with_indent_override(core.active_view.doc, perform, ...)
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
local draw = DocView.draw
|
||
|
|
function DocView:draw(...)
|
||
|
|
return with_indent_override(self.doc, draw, self, ...)
|
||
|
|
end
|