mirror of
https://github.com/mamedev/mame.git
synced 2024-11-16 07:48:32 +01:00
310 lines
8.6 KiB
Lua
310 lines
8.6 KiB
Lua
-- license:MIT
|
|
-- copyright-holders:Carl, Patrick Rapin, Reuben Thomas
|
|
-- completion from https://github.com/rrthomas/lua-rlcompleter
|
|
local exports = {}
|
|
exports.name = "console"
|
|
exports.version = "0.0.1"
|
|
exports.description = "Console plugin"
|
|
exports.license = "BSD-3-Clause"
|
|
exports.author = { name = "Carl" }
|
|
|
|
local console = exports
|
|
local history_file = "console_history"
|
|
|
|
local history_fullpath = nil
|
|
|
|
function console.startplugin()
|
|
local conth = emu.thread()
|
|
local ln_started = false
|
|
local started = false
|
|
local stopped = false
|
|
local ln = require("linenoise")
|
|
local preload = false
|
|
local matches = {}
|
|
local lastindex = 0
|
|
local consolebuf
|
|
_G.history = function (index)
|
|
local history = ln.historyget()
|
|
if index then
|
|
ln.preload(history[index])
|
|
return
|
|
end
|
|
for num, line in ipairs(history) do
|
|
print(num, line)
|
|
end
|
|
end
|
|
print(" /| /| /| /| /| _______")
|
|
print(" / | / | / | / | / | / /")
|
|
print(" / |/ | / | / |/ | / ____/ ")
|
|
print(" / | / | / | / /_ ")
|
|
print(" / |/ | / |/ __/ ")
|
|
print(" / /| /| /| |/ /| /| /____ ")
|
|
print(" / / | / | / | / | / | / ")
|
|
print("/ _/ |/ / / |___/ |/ /_______/ ")
|
|
print(" / / ")
|
|
print(" / _/ \n")
|
|
print(emu.app_name() .. " " .. emu.app_version(), "\nCopyright (C) Nicola Salmoria and the MAME team\n");
|
|
print(_VERSION, "\nCopyright (C) Lua.org, PUC-Rio\n");
|
|
-- linenoise isn't thread safe but that means history can handled here
|
|
-- that also means that bad things will happen if anything outside lua tries to use it
|
|
-- especially the completion callback
|
|
ln.historysetmaxlen(50)
|
|
local scr = [[
|
|
local ln = require('linenoise')
|
|
ln.setcompletion(function(c, str, pos)
|
|
status = str .. "\x01" .. tostring(pos)
|
|
yield()
|
|
ln.addcompletion(c, status:match("([^\x01]*)\x01(.*)"))
|
|
end)
|
|
local ret = ln.linenoise('$PROMPT')
|
|
if ret == nil then
|
|
return "\n"
|
|
end
|
|
return ret
|
|
]]
|
|
local keywords = {
|
|
'and', 'break', 'do', 'else', 'elseif', 'end', 'false', 'for',
|
|
'function', 'if', 'in', 'local', 'nil', 'not', 'or', 'repeat',
|
|
'return', 'then', 'true', 'until', 'while'
|
|
}
|
|
local cmdbuf = ""
|
|
|
|
-- Main completion function. It evaluates the current sub-expression
|
|
-- to determine its type. Currently supports tables fields, global
|
|
-- variables and function prototype completion.
|
|
local function contextual_list(expr, sep, str, word, strs)
|
|
local function add(value)
|
|
value = tostring(value)
|
|
if value:match("^" .. word) then
|
|
matches[#matches + 1] = value
|
|
end
|
|
end
|
|
|
|
-- This function is called in a context where a keyword or a global
|
|
-- variable can be inserted. Local variables cannot be listed!
|
|
local function add_globals()
|
|
for _, k in ipairs(keywords) do
|
|
add(k)
|
|
end
|
|
for k in pairs(_G) do
|
|
add(k)
|
|
end
|
|
end
|
|
|
|
if expr and expr ~= "" then
|
|
local v = load("local STRING = {'" .. table.concat(strs,"','") .. "'} return " .. expr)
|
|
if v then
|
|
err, v = pcall(v)
|
|
if (not err) or (not v) then
|
|
add_globals()
|
|
return
|
|
end
|
|
local t = type(v)
|
|
if sep == '.' or sep == ':' then
|
|
if t == 'table' then
|
|
for k, v in pairs(v) do
|
|
if type(k) == 'string' and (sep ~= ':' or type(v) == "function") then
|
|
add(k)
|
|
end
|
|
end
|
|
elseif t == 'userdata' then
|
|
for k, v in pairs(getmetatable(v)) do
|
|
if type(k) == 'string' and (sep ~= ':' or type(v) == "function") then
|
|
add(k)
|
|
end
|
|
end
|
|
end
|
|
elseif sep == '[' then
|
|
if t == 'table' then
|
|
for k in pairs(v) do
|
|
if type(k) == 'number' then
|
|
add(k .. "]")
|
|
end
|
|
end
|
|
if word ~= "" then add_globals() end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
if #matches == 0 then
|
|
add_globals()
|
|
end
|
|
end
|
|
|
|
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
|
|
|
|
-- This complex function tries to simplify the input line, by removing
|
|
-- literal strings, full table constructors and balanced groups of
|
|
-- parentheses. Returns the sub-expression preceding the word, the
|
|
-- separator item ( '.', ':', '[', '(' ) and the current string in case
|
|
-- of an unfinished string literal.
|
|
local function simplify_expression(expr, word)
|
|
local strs = {}
|
|
-- Replace annoying sequences \' and \" inside literal strings
|
|
expr = expr:gsub("\\(['\"])", function (c)
|
|
return string.format("\\%03d", string.byte(c))
|
|
end)
|
|
local curstring
|
|
-- Remove (finished and unfinished) literal strings
|
|
while true do
|
|
local idx1, _, equals = expr:find("%[(=*)%[")
|
|
local idx2, _, sign = expr:find("(['\"])")
|
|
if idx1 == nil and idx2 == nil then
|
|
break
|
|
end
|
|
local idx, startpat, endpat
|
|
if (idx1 or math.huge) < (idx2 or math.huge) then
|
|
idx, startpat, endpat = idx1, "%[" .. equals .. "%[", "%]" .. equals .. "%]"
|
|
else
|
|
idx, startpat, endpat = idx2, sign, sign
|
|
end
|
|
if expr:sub(idx):find("^" .. startpat .. ".-" .. endpat) then
|
|
expr = expr:gsub(startpat .. "(.-)" .. endpat, function (str)
|
|
strs[#strs + 1] = str
|
|
return " STRING[" .. #strs .. "] "
|
|
end)
|
|
else
|
|
expr = expr:gsub(startpat .. "(.*)", function (str)
|
|
curstring = str
|
|
return "(CURSTRING "
|
|
end)
|
|
end
|
|
end
|
|
-- crop string at unmatched open paran
|
|
expr = find_unmatch(expr, "%(", "%b()")
|
|
expr = find_unmatch(expr, "%[", "%b[]")
|
|
--expr = expr:gsub("%b()"," PAREN ") -- Remove groups of parentheses
|
|
expr = expr:gsub("%b{}"," TABLE ") -- Remove table constructors
|
|
-- Avoid two consecutive words without operator
|
|
expr = expr:gsub("(%w)%s+(%w)","%1|%2")
|
|
expr = expr:gsub("%s+", "") -- Remove now useless spaces
|
|
-- This main regular expression looks for table indexes and function calls.
|
|
return curstring, strs, expr:match("([%.:%w%(%)%[%]_]-)([:%.%[%(])" .. word .. "$")
|
|
end
|
|
|
|
local function get_completions(line, endpos)
|
|
matches = {}
|
|
local endstr = line:sub(endpos + 1, -1)
|
|
line = line:sub(1, endpos)
|
|
endstr = endstr or ""
|
|
local start, word = line:match("^(.*[ \t\n\"\\'><=;:%+%-%*/%%^~#{}%(%)%[%].,])(.-)$")
|
|
if not start then
|
|
start = ""
|
|
word = word or line
|
|
else
|
|
word = word or ""
|
|
end
|
|
|
|
local str, strs, expr, sep = simplify_expression(line, word)
|
|
contextual_list(expr, sep, str, word, strs)
|
|
if #matches > 1 then
|
|
print("\n")
|
|
for k, v in pairs(matches) do
|
|
print(v)
|
|
end
|
|
return "\x01" .. "-1"
|
|
elseif #matches == 1 then
|
|
return start .. matches[1] .. endstr .. "\x01" .. (#start + #matches[1])
|
|
end
|
|
return "\x01" .. "-1"
|
|
end
|
|
|
|
emu.register_start(function()
|
|
if not consolebuf and manager.machine.debugger then
|
|
consolebuf = manager.machine.debugger.consolelog
|
|
lastindex = 0
|
|
end
|
|
end)
|
|
|
|
emu.register_stop(function() consolebuf = nil end)
|
|
|
|
emu.register_periodic(function()
|
|
if stopped then
|
|
return
|
|
end
|
|
if (not started) then
|
|
-- options are not available in startplugin, so we load the history here
|
|
local homepath = emu.subst_env(manager.options.entries.homepath:value():match("([^;]+)"))
|
|
history_fullpath = homepath .. '/' .. history_file
|
|
ln.loadhistory(history_fullpath)
|
|
started = true
|
|
end
|
|
local prompt = "\x1b[1;36m[MAME]\x1b[0m> "
|
|
if consolebuf and (#consolebuf > lastindex) then
|
|
local last = #consolebuf
|
|
print("\n")
|
|
while lastindex < last do
|
|
lastindex = lastindex + 1
|
|
print(consolebuf[lastindex])
|
|
end
|
|
ln.refresh()
|
|
end
|
|
if conth.yield then
|
|
conth:continue(get_completions(conth.result:match("([^\x01]*)\x01(.*)")))
|
|
return
|
|
elseif conth.busy then
|
|
return
|
|
elseif ln_started then
|
|
local cmd = conth.result
|
|
if cmd == "\n" then
|
|
stopped = true
|
|
return
|
|
elseif cmd == "" then
|
|
if cmdbuf ~= "" then
|
|
print("Incomplete command")
|
|
cmdbuf = ""
|
|
end
|
|
else
|
|
cmdbuf = cmdbuf .. "\n" .. cmd
|
|
local func, err = load(cmdbuf)
|
|
if not func then
|
|
if err:match("<eof>") then
|
|
prompt = "\x1b[1;36m[MAME]\x1b[0m>> "
|
|
else
|
|
print("error: ", err)
|
|
cmdbuf = ""
|
|
end
|
|
else
|
|
local status
|
|
status, err = pcall(func)
|
|
if not status then
|
|
print("error: ", err)
|
|
end
|
|
cmdbuf = ""
|
|
end
|
|
ln.historyadd(cmd)
|
|
end
|
|
end
|
|
conth:start(scr:gsub("$PROMPT", prompt))
|
|
ln_started = true
|
|
end)
|
|
end
|
|
|
|
setmetatable(console, {
|
|
__gc = function ()
|
|
if history_fullpath then
|
|
local ln = require("linenoise")
|
|
ln.savehistory(history_fullpath)
|
|
end
|
|
end})
|
|
|
|
return exports
|