hi, 

may sound strange, but maybe someone has an idea.

i have lots of global variables like

_G.username

_G.testfile

_G.lg_test1

_G.lg_runtime

_G.lg_info

_G.hallo

ok... no i would like to give the users to chance to change to content

for all variables that start with _G.lg_   like _G.lg_test1

i know i could write all _G.lg_ files down in a extra list and offer a inputline to change.

but its over 400 ! of that _G.lg_ variables and now I MAY save some time

if one of u has an idea how to internally by code I could discover all variables like that

and put it in an array for example.

i expect there is no solution and i have to do the manual way but ... i ask

cheers

chris

local prefix = "lg_" -- What you want global variables to be found to start withlocal prefixLength = prefix:len() -- Just an optimizationfor k, v in pairs(_G) doif k:sub(1, prefixLength) == prefix then-- Do whatever; it matches the prefixendend

wohhhhhhh !!!!

thats sooo cool

thanks a lot ... its amazing

you are a genius

so now i use

local prefix = "lg_"                        -- What you want global variables to be found to start with

greets

chris

-- This function converts a table to a string representationlocal function tableToString(t)local str = {} -- It's a table because then we'll concatenate it together and it's faster than doing it to a stringfor k, v in pairs(t) dotable.insert(str, k .. " = ")local vType = type(v) -- Take the type of 'v' so we can know how to change it into a stringif vType == "string" or vType == "number" thentable.insert(str, v) -- It can be added really simplyelseif vType == "boolean" thentable.insert(str, (v == true and "true") or "false") -- Convert Boolean to stringelseif vType == "table" thentable.insert(str, tableToString(v)) -- Convert it to a table before adding itendendreturn "{" .. table.concat(str, ", ") .. "}" -- Concatenate the key/value pairs with commasend-- Now for the looplocal prefix = "lg_" -- What you want global variables to be found to start withlocal prefixLength = prefix:len() -- Just an optimizationfor k, v in pairs(_G) doif k:sub(1, prefixLength) == prefix then -- Do whatever; it matches the prefixlocal vString = v -- What we'll print outlocal vType = type(v)if vType == "string" or vType == "number" then-- Nothing to do hereelseif vType == "boolean" thenvString = (v == true and "true") or falseelseif vType == "table" thenvString = tableToString(v)endprint(k .. " : " .. vString)endend

local json = require("json") -- Include the JSON librarylocal prefix = "lg_" -- What you want global variables to be found to start withlocal prefixLength = prefix:len() -- Just an optimizationfor k, v in pairs(_G) doif k:sub(1, prefixLength) == prefix then -- Do whatever; it matches the prefixlocal vString = v -- What we'll print outlocal vType = type(v)if vType == "string" or vType == "number" then-- Nothing to do hereelseif vType == "boolean" thenvString = (v == true and "true") or falseelseif vType == "table" thenvString = json.encode(v) -- Transform the table into a JSON stringendprint(k .. " : " .. vString)endend

thank you so much !

great

all the best

chris