lua-table

I'm using the Redis client from ServiceStack. I have a Lua script that fills up a Lua table with results from several Redis calls. I want to return this table in some way. My thought was to use the method ExecLuaShaAsList from the client lib and in the lua script just do a "return myTable". It doesnt work, I always get an empty list back. How to return the lua table to the redis client? This the C# script I use with the Redis client: using (var redisClient = GetPooledRedisClient()) { var sha1 = redisClient.LoadLuaScript(luaBody); List<string> theList = redisClient.ExecLuaShaAsList(sha1); int

When I run this code through redis EVAL it return no results. Any idea why this is not working? redis-cli EVAL "$(cat bug.lua)" 0 bug.lua local retv = {} retv["test"] = 1000 return retv If I initialize the table that value alone gets printed. $ cat bug.lua --!/usr/bin/env lua local retv = {"This", "is", "a", "bug" } retv["test"] = 1000 return retv $ redis-cli EVAL "$(cat bug.lua)" 2 a b 1) "This" 2) "is" 3) "a" 4) "bug" If you refer to the Redis EVAL documentation you can see what are the rules Redis uses to convert a Lua table into a Redis reply: Lua table (array) -> Redis multi bulk reply (

I have created a Lua table in C , but I'm not sure how to push that table onto the top of a stack so I can pass it to a Lua function. Does anyone know how to do this? This is my current code: lua_createtable(state, libraries.size(), 0); int table_index = lua_gettop(state); for (int i = 0; i < libraries.size(); i++) { lua_pushstring(state, libraries[i].c_str()); lua_rawseti(state, table_index, i + 1); } lua_settable(state, -3); [ Push other things ] [ Call function ] Here's a quick helper function to push strings to the table void l_pushtablestring(lua_State* L , char* key , char* value) { lua

How can I write a function that determines whether it's table argument is a true array? isArray({1, 2, 4, 8, 16}) -> true isArray({1, "two", 3, 4, 5}) -> true isArray({1, [3]="two", [2]=3, 4, 5}) -> true isArray({1, dictionaryKey = "not an array", 3, 4, 5}) -> false I can't see any way of finding out if the numeric keys are the only keys. ipairs iterates over indices 1..n, where n+1 is the first integer index with a nil value pairs iterates over all keys. if there are more keys than there are sequential indices, then it cannot be an array. So all you have to do is see if the number of elements

In Lua, there seem to be two ways of appending an element to an array: table.insert(t, i) and t[#t+1] = i Which should I use, and why? Which to use is a matter of preference and circumstance: as the # length operator was introduced in version 5.1, t[#t+1] = i will not work in Lua 5.0, whereas table.insert has been present since 5.0 and will work in both. On the other hand, t[#t+1] = i uses exclusively language-level operators, wheras table.insert involves a function (which has a slight amount of overhead to look up and call and depends on the table module in the environment). In the second