function theissue(l)
--yea basically this wont detect if the string is upper case or lower case i have no idea what im doing wrong here
local typ = ""
if string.upper(l) then
typ = "upper"
else
typ = "lower"
end
print(typ)
end
Basically it wont detect if the string is upper case i dont know what i am doing wrong but apparently im doing something wrong i guess
string.upper() only just returns the string with all the letters in uppercase, it doesnt return if theres uppercase nor lowercase letters inside the string. you'd use string.match() and the %u pattern.
local function theissue(L) -- use local functions
local typ
if string.match(L, "%u") then
typ = "upper"
else
typ = "lower"
end
end
though this would only detect if theres a letter thats uppercase, not the entire string. if you'd want to find out if the entire string is uppercase then you could loop through it.
local function theissue(L)
local typ = "upper"
for letter in string.gmatch(L, "%a") do
if not string.match(letter,"%u") then -- if it finds a lowercase letter
typ = "lower"
break -- breaks the loop
end
end
print(typ)
end
the %a pattern is every letter in a string.
thank you it works but how do i do the thingy that it says answered
its under the answer?
thanks
Here's a function to check if it is uppercase.
function IsUpper(s)
return (s == string.upper(s));
end
why the semicolons
It's required to end a statement with it in alot of languages and is good practice to end a statement with it even if the language doesn't require it.
In Lua it's considered bad practice by some, but it's mostly personal preference, personally I think it looks neater but I don't tend to use it ;p
Yeah, it's just for neatness and to make the code easier to read, but I'd never say that it's bad practice to use them.
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3 comments
else is not necessary
for one, dont make the name of the first parameter "1", the lua parser is going to see that as a number, and a variable name
thats actually the letter L