String help plz

Help and Feedback Scripting Support
#21

It’s quite simple if you break it down:

  1. parse_newlines is a function that will simply turn newlines created by the Enter/return key to “\n”.
"Hello,
World!"
-- becomes
"Hello,\nWorld!"
  1. split_newlines is a function that will turn a string into an array by newlines “\n”:
"Hello,\nWorld!"
-- becomes
{"Hello,", "World!"}
  1. insertStringAtLine simply inserts the given string into the line with the option to add newline padding and converts it back into a string.
insertStringAtLine([[Hello,
World!]], "!!!", 2, false, true)
-- becomes
[[Hello,
!!!

World!]]

-- notice how there is no padding above but padding below
-- because I set the arguments to false and true respectively.
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#22

Ok yall on the subject of strings, new problem while I was about to make this work I ran into a problem with gsub, heres the code:

local CommandToReplace = string.split(BaseCommandCode,'\n')
CommandToReplace[1] = string.gsub(CommandToReplace[1],'Command','test')

The error is:

invalid argument #1 to 'gsub' (string expected, got table)

So I printed what CommandToReplace[1] is, its a string, so like wth is going on lol

#23

This is an almost swapped case I believe. You’re overwriting it at the same time of reading it. Try assigning it to a variable first

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#24

Actually it’s a table I’m just dumb, it doesn’t have an almost swapped issue

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#25

I don’t know exactly what’s going on in this case? I tried causing this to happen without intentionally passing CommandToReplace to string.gsub but even if there’s zero matches, empty split, etc. It will still be treated as {string} and assume an empty string.

This worked, of course I don’t know if this is the exact use case you were attempting, but this functions fine. I tried it too without a loop and only overriding index 1 but that has no issues either. Of course, if this is what you’re trying to do you should probably do the operation before splitting the string

local commands = [[
HelpCommand\n
PingCommand\n
NotACmd
]]

local splitCommands = commands:split("\n")
for index, command in splitCommands do
	splitCommands[index] = splitCommands[index]:gsub("Command", "test")
end

local mergedCommands = table.concat(splitCommands, "\n")
print(mergedCommands)
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#26 
local stringToAdd = [[
Line1 Text
Line2 Text
]]

local ex = [[
Name
Title
Desc

Cheese
]]

local result = ex:gsub("(.+Desc)(.?)", "%1" .. stringToAdd .. "%2")

print(result)

Change “%1” to “%1\n” if you want stringToAdd to start on a new line

#27

Yeah you we’re right, gusb worked perfectly! Thanks!

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#28

Hey can you try my solution and see if it works for you?

#29

uh why? yours looks so much more complicated then what I did so Idk if thats necessary

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#30

Mine inserts the string into the old one instead of just replacing a part of the string completely

#31

True, but replacing it works just fine as I can just leave like a placeholder inside of the string, which again just kinda makes it easier so yeah.

Thanks though!

1 Like
#32

Okay, well a simpler way of doing the solution is just to do

local Message = [[
Hi.
placeholder
I am a girl.
]]

print(Message:gsub("placeholder", "I am Frodev"))
#33

Yeah, but they gave the general idea first so I marked it as the solution

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#34

Over complication isn’t real it can’t hurt you

enjoy some unnecessarily bloated code, just for you frodev! just like the minecraft movie, we only throw money at Jack Black. sorry, a simple solution was just too much of an ask. we have simple solution at home!

local iAmString = {}
iAmString.__index = iAmString

function iAmString:__tostring()
     return table.concat(self.parts, self.joins)
end

function iAmString.new(start: string | {string}, ...: string)
    local self = setmetatable({}, iAmString)
    self.joins = " "

    if type(start) == "string" then
        self.parts = {start}
    else
        self.parts = start
    end

    local varargs = {...}
    if varargs ~= nil then
        for _, str in varargs do
            table.insert(self.parts, str)
        end
    end

    return self
end

function iAmString:find(str: string): number?
    return table.find(self.parts, str)
end

function iAmString:addLine(str: string, pos: number?)
    local length = #self.parts
    pos = pos or length + 1

    if pos <= length then
        local shifted = self.parts
        shifted[pos] = str

        for index = pos, length do
            shifted[index + 1] = self.parts[index]
        end

        self.parts = shifted
    else
        self.parts[pos] = str
    end

    return self
end

function iAmString:removeLine(pos: number?)
    pos = pos or 1
    table.remove(self.parts, pos)
    return self
end

function iAmString:setLine(str: string, pos: number | string)
    if type(pos) == "string" then
        pos = self:find(pos)
        assert(pos, "Could not find any matches")
    end

    self.parts[pos :: number] = str
    return self
end

local realString = iAmString.new("Steve")
realString.joins = "...\n"
realString
    :addLine("I", 1)
    :addLine("An", 2)
    :setLine("Steve!", 3)
    :setLine("Am", "An")

print(realString)
-- I...\n
-- Am...\n
-- Steve!

Thank you
Good night
This is my goodbye, the Piglins are getting close!

1 Like
#35

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