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plugins/console: much better completions (nw)

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This commit is contained in:
cracyc 2016-11-07 15:07:52 -06:00
parent 769810638a
commit 3b512b0fd8
1 changed files with 41 additions and 10 deletions
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51
plugins/console/init.lua
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@ -25,25 +25,56 @@ function console.startplugin()
-- that also means that bad things will happen if anything outside lua tries to use it
-- especially the completion callback
ln.historysetmaxlen(10)
local scr = "local ln = require('linenoise')\n"
scr = scr .. "ln.setcompletion(function(c, str) status = str\n"
scr = scr .. " yield()\n" -- coroutines can't yield in the middle of a callback so this is a real thread
scr = scr .. " status:gsub('[^,]*', function(s) if s ~= '' then ln.addcompletion(c, s) end end)\n"
scr = scr .. "end)\n"
scr = scr .. "return ln.linenoise('\x1b[1;36m[MAME]\x1b[0m> ')"
local scr = [[
local ln = require('linenoise')
ln.setcompletion(function(c, str)
status = str
yield()
status:gsub('[^,]*', function(s) if s ~= '' then ln.addcompletion(c, s) end end)
end)
return ln.linenoise('\x1b[1;36m[MAME]\x1b[0m> ')
]]
local function find_unmatch(str, openpar, pair)
local done = false
if not str:match(openpar) then
return str
end
local tmp = str:gsub(pair, "")
if not tmp:match(openpar) then
return str
end
repeat
str = str:gsub(".-" .. openpar .. "(.*)", function (s)
tmp = s:gsub(pair, "")
if not tmp:match(openpar) then
done = true
end
return s
end)
until done or str == ""
return str
end
local function get_completions(str)
local comps = ","
local table = str:match("([(]?[%w.:()]-)[:.][%w_]*$")
local rest, last = str:match("(.-[:.]?)([%w_]*)$")
local rest, dot, last = str:match("(.-)([.:]?)([^.:]*)$")
str = find_unmatch(str, "%(", "%b()")
str = find_unmatch(str, "%[", "%b[]")
local table = str:match("([%w_%.:%(%)%[%]]-)[:.][%w_]*$")
local err
if table == "" or not table then
table = "_G"
if rest == "" or not table then
if dot == "" then
table = "_G"
else
return comps
end
end
err, tablef = pcall(load("return " .. table))
if (not err) or (not tablef) then
return comps
end
rest = rest .. dot
if type(tablef) == 'table' then
for k, v in pairs(tablef) do
if k:match("^" .. last) then