Make a string only contain abc's?

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#1

I’m trying to make a string filter out any number / special character, but I can’t really find what class/string thingy would do that.

I’ve tried looking all over google but have found nothing!

Heres an example of what I want to happen:

local String = "I want to 😀 filter this emoji out"

-- Magical Code That Filters Message Here

print(String)--Output wanted: "I want to filter this emoji out"
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#2

32-126
“str” is the string you are trying to filter. Accepts codes from the range of 32 to 126.

local mod = 0
for i = 1, str:len() do
	i-=mod
	local sub = str:sub(i,i):byte()
	if math.clamp(sub, 32, 126)~=sub then
		local str1, str2 = str:sub(1, i-1), str:sub(i+1, str:len())
		str = str1..str2
		mod+=1
	end
end
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#3

Thank you so much! I really appreciate it!

1 Like
#4 
local String = "I want to 😀 filter this emoji out"
String = string.gsub(String, "[^%a%s]", "")
String = string.gsub(String, "  ", " ")
print(String) --I want to filter this emoji out
3 Likes
#5

Thank you, except I realized it only subs the space if there is 3…

#6

Thank you, except I realized it only subs the space if there is 3…

string.gsub(String, " ", " ")

This pattern replaces two whitespaces with one so I’m not sure what you mean but use the following if you want to substitute any number of consecutive whitespaces with a single one.

String = string.gsub(String, "%s+", " ")

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