Concatenating variable into literal string

Question

I'm trying to concatenate a variable into a literal string purely for readability purposes e.g.

myString = "test"
myString2 = [[
first part of the string
this is a " .. myString .. " string
last part of the string]]
print(myString2)

but this literally outputs

first part of the string
this is a " .. myString .. " string
last part of the string

I'm sure it's something simple but I've tried Googling to find out how to achieve this and came up blank.

unrealapex · Accepted Answer · 2024-04-15 16:27:10Z

12

The quotes inside the double bracket delimiters aren't doing anything. The only way to end the double bracket is with a double bracket:

myString2 = [[
first part of the string
this is a ]] .. myString .. [[ string
last part of the string]]

That will give you:

first part of the string
this is a test string
last part of the string

See: http://www.lua.org/pil/2.4.html

edited Apr 15, 2024 at 16:27

unrealapex

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answered Feb 5, 2014 at 16:07

atlasologist

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1 Comment

AStopher Over a year ago

Exactly. Lua is a programming language based primarily on logic (as is the same with many other programming languages) and therefore all operators such as ( and [[ need to be matched with the opposite to that operator (in your case, ]]).

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