add basic API (basicaly chat command builder)

This commit is contained in:
AFCMS 2021-03-08 14:47:49 +01:00
parent d3a2faefe2
commit d72fa76757
2 changed files with 229 additions and 16 deletions

View File

@ -4,6 +4,227 @@ local mod_death_messages = minetest.get_modpath("mcl_death_messages")
local modpath = minetest.get_modpath(minetest.get_current_modname()) local modpath = minetest.get_modpath(minetest.get_current_modname())
mcl_commands = {}
mcl_commands.types = {
pos = "%(? *(%-?[%d.]+) *, *(%-?[%d.]+) *, *(%-?[%d.]+) *%)?",
text = "(.+)",
number = "(%-?[%d.]+)",
int = "(%-?[%d]+)",
word = "([^ ]+)",
alpha = "([A-Za-z]+)",
modname = "([a-z0-9_]+)",
alphascore = "([A-Za-z_]+)",
alphanumeric = "([A-Za-z0-9]+)",
username = "([A-Za-z0-9-_]+)", --TODO: add json type
}
function mcl_commands.register_command(name, func, def)
def = def or {}
local cmd = mcl_commands.build(func)
cmd.def = def
def.func = cmd.run
if minetest.registered_chatcommands[name] then
error("[mcl_commands] Failed to register command: ["..name.."] command already existing! Use mcl_commands.overide_command() if you want to overide existing command")
end
minetest.register_chatcommand(name, def)
return cmd
end
function mcl_commands.overide_command(name, func, def)
def = def or {}
local cmd = mcl_commands.build(func)
cmd.def = def
def.func = cmd.run
if minetest.registered_chatcommands[name] then
minetest.unregister_chatcommand(name)
end
minetest.register_chatcommand(name, def)
return cmd
end
local STATE_READY = 1
local STATE_PARAM = 2
local STATE_PARAM_TYPE = 3
local bad_chars = {}
bad_chars["("] = true
bad_chars[")"] = true
bad_chars["."] = true
bad_chars["%"] = true
bad_chars["+"] = true
bad_chars["-"] = true
bad_chars["*"] = true
bad_chars["?"] = true
bad_chars["["] = true
bad_chars["^"] = true
bad_chars["$"] = true
local function escape(char)
if bad_chars[char] then
return "%" .. char
else
return char
end
end
local dprint = function() end
function mcl_commands.build(func)
local cmd = {
_subs = {}
}
function cmd:sub(route, func, def)
dprint("Parsing " .. route)
def = def or {}
if string.trim then
route = string.trim(route)
end
local sub = {
pattern = "^",
params = {},
func = func
}
-- End of param reached: add it to the pattern
local param = ""
local param_type = ""
local should_be_eos = false
local function finishParam()
if param ~= "" and param_type ~= "" then
dprint(" - Found param " .. param .. " type " .. param_type)
local pattern = mcl_commands.types[param_type]
if not pattern then
error("Unrecognised param_type=" .. param_type)
end
sub.pattern = sub.pattern .. pattern
table.insert(sub.params, param_type)
param = ""
param_type = ""
end
end
-- Iterate through the route to find params
local state = STATE_READY
local catching_space = false
local match_space = " " -- change to "%s" to also catch tabs and newlines
local catch_space = match_space.."+"
for i = 1, #route do
local c = route:sub(i, i)
if should_be_eos then
error("Should be end of string. Nothing is allowed after a param of type text.")
end
if state == STATE_READY then
if c == ":" then
dprint(" - Found :, entering param")
state = STATE_PARAM
param_type = "word"
catching_space = false
elseif c:match(match_space) then
print(" - Found space")
if not catching_space then
catching_space = true
sub.pattern = sub.pattern .. catch_space
end
else
catching_space = false
sub.pattern = sub.pattern .. escape(c)
end
elseif state == STATE_PARAM then
if c == ":" then
dprint(" - Found :, entering param type")
state = STATE_PARAM_TYPE
param_type = ""
elseif c:match(match_space) then
print(" - Found whitespace, leaving param")
state = STATE_READY
finishParam()
catching_space = true
sub.pattern = sub.pattern .. catch_space
elseif c:match("%W") then
dprint(" - Found nonalphanum, leaving param")
state = STATE_READY
finishParam()
sub.pattern = sub.pattern .. escape(c)
else
param = param .. c
end
elseif state == STATE_PARAM_TYPE then
if c:match(match_space) then
print(" - Found space, leaving param type")
state = STATE_READY
finishParam()
catching_space = true
sub.pattern = sub.pattern .. catch_space
elseif c:match("%W") then
dprint(" - Found nonalphanum, leaving param type")
state = STATE_READY
finishParam()
sub.pattern = sub.pattern .. escape(c)
else
param_type = param_type .. c
end
end
end
dprint(" - End of route")
finishParam()
sub.pattern = sub.pattern .. "$"
dprint("Pattern: " .. sub.pattern)
table.insert(self._subs, sub)
end
if func then
func(cmd)
end
cmd.run = function(name, param)
for i = 1, #cmd._subs do
local sub = cmd._subs[i]
local res = { string.match(param, sub.pattern) }
if #res > 0 then
local pointer = 1
local params = { name }
for j = 1, #sub.params do
local param = sub.params[j]
if param == "pos" then
local pos = {
x = tonumber(res[pointer]),
y = tonumber(res[pointer + 1]),
z = tonumber(res[pointer + 2])
}
table.insert(params, pos)
pointer = pointer + 3
elseif param == "number" or param == "int" then
table.insert(params, tonumber(res[pointer]))
pointer = pointer + 1
else
table.insert(params, res[pointer])
pointer = pointer + 1
end
end
if table.unpack then
-- lua 5.2 or later
return sub.func(table.unpack(params))
else
-- lua 5.1 or earlier
return sub.func(unpack(params))
end
end
end
return false, "Invalid command"
end
return cmd
end
dofile(modpath.."/kill.lua") dofile(modpath.."/kill.lua")
dofile(modpath.."/setblock.lua") dofile(modpath.."/setblock.lua")
dofile(modpath.."/seed.lua") dofile(modpath.."/seed.lua")

View File

@ -41,19 +41,11 @@ local function handle_kill_command(suspect, victim)
return true return true
end end
if minetest.registered_chatcommands["kill"] then mcl_commands.overide_command("kill", function(cmd)
minetest.unregister_chatcommand("kill") cmd:sub("", function(name)
end
minetest.register_chatcommand("kill", {
params = S("[<name>]"),
description = S("Kill player or yourself"),
privs = {server=true},
func = function(name, param)
if(param == "") then
-- Selfkill
return handle_kill_command(name, name) return handle_kill_command(name, name)
else end)
return handle_kill_command(name, param) cmd:sub(":target:username", function(name, target)
end return handle_kill_command(name, target)
end, end)
}) end)