Using multiple variables to create one unified variable/string

Solar2D General Questions/Discussion
#1

I’m trying to be able to merge several variables into one string. How do I get this to work?

a = “The”
b= “cat”
c= “sat”
d = “on”
e = “the”
f = “mat”

x = a, b, c, d, e, f
local alert = native.showAlert( x, “”, { “OK” },
onComplete )
And have the alert pop up and say “The cat sat on the mat”

Thanks! [import]uid: 115085 topic_id: 24678 reply_id: 324678[/import]

#2

[lua]a = “The”
b= “cat”
c= “sat”
d = “on”
e = “the”
f = “mat”

x = a … " " … b … " " … c … " " … d … " " … e … " " … f

local alert = native.showAlert( x, “”, { “OK” },onComplete )[/lua] [import]uid: 10389 topic_id: 24678 reply_id: 99965[/import]

#3

Thanks!

Is there any way to insert a new line in-between each variable when making X? [import]uid: 115085 topic_id: 24678 reply_id: 99969[/import]

#4

You want:

[lua]x = a … “\n” … b … “\n” … c … “\n” … d … “\n” … e … “\n” … f[/lua]

???

or

[lua]x = a … " " …
b … " " …
c … " " …
d … " " …
e … " " …
f[/lua]

?

Both should work. [import]uid: 10389 topic_id: 24678 reply_id: 99985[/import]

#5

Sweet! Perfect! [import]uid: 115085 topic_id: 24678 reply_id: 99988[/import]

#6

And from the “Why Not Take Something Simple And Make It More Complex” department, you could also do something like this:

Instead of loading the words into different variables, load them into a table and access them using an index.

[lua]local words = { “The”, “cat”, “sat”, “on”, “the”, “mat” }[/lua]

So words[1] would equal “The”, words[2] would equal “cat”, and so on.

To print that string of words you can use a function like this:

[lua]local function displayWords(t)
for i = 1, #t do
print(t[i] … “\n”)
end
end[/lua]

You just pass in the table holding all your words and it prints them, each on a separate line.

By using a print function like that you could also create a function that puts a space between each word so it looks like a sentence, etc. Basically, you have “raw data” in the form of a table and can then manipulate it however you like.

And just for the fun of it, here’s an example that’s built off that idea. It uses two functions, one to put all the words of any given string into a table, and the second function to print them one per line.

[lua]local function loadWords(s)
local temp = {}
for word in string.gmatch(s, “[^%s]+”) do
table.insert(temp, word)
end
return temp
end

local function displayWords(t)
for i = 1, #t do
print(t[i] … “\n”)
end
end

local t = loadWords(“The cat sat on the mat”)
displayWords(t)[/lua]

I know your original question was already answered, but thought this might be helpful in other areas or for other folks looking for a similar solution.

Jay
[import]uid: 9440 topic_id: 24678 reply_id: 99999[/import]

#7

Yikes! I think the original way is less complex.

Thanks anyway! [import]uid: 115085 topic_id: 24678 reply_id: 100060[/import]