Questions tagged [lua]
Lua is a lightweight multi-paradigm programming language designed as a scripting language with extensible semantics as a primary goal.
28 questions
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Can I refer to a closure in a different thread?
As far as I know Lua uses closures to encapsulate local variables,
well I've got a function call in a worker thread which passes reference to a callback function, and the async call will be handled by ...
- 157
4
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2
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455
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Criteria for a language (Terra as a tricky example) to be usable for operating system development, and how to meet missing criteria
For example, a language that I was looking at recently- Terra. You can address the question in the context of any language, I'm just most comfortable with Lua so I'm starting from there.
The Terra ...
8
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2
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10k
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Should I use Lua for writing config files?
I heard that Lua is great for configuration files, so long as you are secure about it. Lua has been used as config files by programs such as awesome and (recently) conky.
However, I also heard that ...
- 1,324
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326
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Implicit/Explicit Assertions
During code review, a minor suggestion was presented that some implicit behavior be made explicit. The reviewer had skimmed over the code in question, became confused after mistakenly interpreting the ...
- 191
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346
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Is it better to accept a dictionary/table or arguments in a function?
In Lua, I can create an object like so:
local foo = Foo.new({10, 10}, 3, right)
or like so:
local foo = Foo.new({
pos = {10, 10},
len = 3,
direction = "right"
})
The former is more ...
- 1,324
0
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1
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165
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Assigning variables as lines of code
I know in lua you can do something along the lines of
print=System.out.println
print("Hello")
But is there something similar in java?
- 35
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2
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380
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Would using coroutines improve my code?
I am currently developing my own programming language (written in Lua). The text analyzer is composed of two functions: lexer and parser.
lexer takes as input a string, cycles over each character of ...
- 303
4
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2
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383
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Simplifying Some Probabilistic If-Then Spaghetti Code
I've got a fairly substantial code base that I'm trying to simplify. One section in particular deals with probabilistically creating objects. It currently uses hundreds of random number generator ...
4
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2
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1k
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What is the point of designing Lua C APIs?
I am a newbie of Lua. After studying some Lua C APIs examples, I am a little confused.
I can see the Lua C API is used for processing Lua scripts:
......
lua_State *L = luaL_newstate();
...
- 143
1
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1
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is there a cleaner / simpler way to code this? [duplicate]
I have a web app that uses ajax to filter db results.
So if you have a list of 1000 widgets, that have IDs ranging from 1-1000, by typing numbers into the ID field, you can narrow your search.
...
- 581
2
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2
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6k
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proper way to design REST interface with nginx lua.
I'm a noob at nginx and lua. But I'm trying to design a REST interface.
The plan is to create a location entry that will match URIs like this:
curl -i -X GET 'http://localhost/widgets/widget?name=...
- 207
3
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1
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297
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What algorithm can be used for a more complex version of the bin packing problem?
I'm currently developing a plugin for World of Warcraft in LUA to help optimize a recently introduced part of the game, namely Garrison missions.
A Warcraft Garrison (basically a player fortress) has ...
- 1,416
15
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7
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4k
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Function only returns unchanged parameter, useless?
I just found this function in the project I'm working at:
-- Just returns the text unchanged.
-- Note: <text> may be nil, function must return nil in that case!
function Widget:wtr(text)
...
- 270
7
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1
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2k
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Creating New Scripts Dynamically in Lua
Right now this is just a crazy idea that I had, but I was able to implement the code and get it working properly. I am not entirely sure of what the use cases would be just yet.
What this code does ...
- 255
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125
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debugging web applications using debug parameter
A suggestion has been made by a team member to leave all debug code intact in our web pages... and then to create a variable that can be turned on / off to enable /
disable debugging.
This is a ...
- 581