String matching

Help and Feedback Scripting Support
#1

You can write your topic however you want, but you need to answer these questions:

  1. What do you want to achieve? Keep it simple and clear!
    i want the below to not return nil
    string.match(“Text”,“The Text”)

  2. What is the issue? Include screenshots / videos if possible!
    the issue is that i am not very experienced in string manipulation
    but it seems like i can not avoid it this time in the script im writing

  3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
    i looked on google but the solution gave was something similar to this

string.match(“i have a bag”, “bag”) = bag

what i want is this but that returns nil
string.match(“i have a bag”, “the bag”)

1 Like
#2

what exactly are you using this for if i may ask
also, it will return nil because ‘i have a bag’ does contain the matched words ‘the bag’

1 Like
#3

It seems as if you’re not understanding string.match properly.

Here’s a link to the DevHub’s page on strings: string

Additionally, here’s a link to the Luau library documentation: Library - Luau

#4

this was the script im writing

local groupService = game:GetService'GroupService'
local UserId = 1556794251

local groups = groupService:GetGroupsAsync(UserId)
local groupsInfo = {}

for _, groupInfo in pairs(groups) do
	table.insert(groupsInfo, (groupInfo.Rank == 255) and groupInfo.Name or nil)
	table.insert(groupsInfo, (groupInfo.Rank == 255) and groupInfo.Id or nil)
end

local replicatedStorage = game:GetService'ReplicatedStorage'
local remoteEvent = replicatedStorage.RemoteEvent

remoteEvent.OnServerEvent:Connect(function(player, text)
	
	for i, v in pairs(groupsInfo) do
		
		local match = tostring(v):match(text)
		print(match)--this is the part that went wrong where it didnt match anything
                --because the computer is trying to match "The Royal Family" to get string "Royal Family"
                --and it didnt find anything because the computer is thinking the pattern as a whole
                --where as i only am trying to use a part of it not the entire thing
                --but i dont know how to delete "The" without effecting the text on the player's screen
		if match ~= nil then
			local groupId = groupsInfo[i + 1]
			print(groupId)
			local rank = player:GetRankInGroup(groupId)
			
			print(rank)
			
			
		end
		
	end
	
end)
#5

why not use string.match to match (“The”) and find the start and end index and then substring to remove the ‘The’

#6

It returns nil because the subject string doesn’t contain the string pattern (search string).

If you want to remove “The” from a string just do the following.

local string1 = string.gsub("i have the bag", "the", "a")
print(string1) --i have a bag
#7

string.find() would be the better alternative as it returns the start & end index of the first search match.