My live syntax highlighter does not work

Help and Feedback Scripting Support
#1

image

I am not sure why my syntax highlighter does not highlight the first int keyword.

local editor = script.Parent
local function format(s, c)
	return "<font color=\"".. c.. "\">".. s.. "</font>"
end
editor.FocusLost:Connect(function()
	local syntax = editor.Text
	for _, v in pairs({"int"}) do
		syntax = syntax:gsub("(%W)(".. v.. ")(%W)", function(l, str, r)
			return l..format(str, "#859900")..r
		end)
	end
	editor.Text = syntax
end)

I am using RichText feature

4 Likes
Syntax highlighter being weird
How to make an HTML syntax highlighter?
#2

could you elaborate on your problem?

1 Like
#3

Well, it does not highlight all int words. As you can see, it only highlights the second int word.

#4

this only goes through a single element

perhaps use for v in string.gmatch(editor.Text, "int") ?

#5

Wait, how I suppose to use it?

#6

is this in ROBLOX, or some other editor?

#7

My roblox game that highlights code image

#8

try this

local editor = script.Parent
local function format(s, c)
	return "<font color=\"".. c.. "\">".. s.. "</font>"
end
editor.FocusLost:Connect(function()
	local syntax = editor.Text
	for _, v in string.gmatch(string.lower(editor.Text),string.lower("int")) do
		syntax = syntax:gsub("(%W)(".. v.. ")(%W)", function(l, str, r)
			return l..format(str, "#859900")..r
		end)
	end
	editor.Text = syntax
end)
1 Like
#9

Did you turn the property instead the text on?
image

#10

I am still trying to figure out smth. How many times does the for loop run? Only Once, or Multiple times

#11

Yeah I did turn the property on.
image

#12

Oh, I found what the issue was; source: RichText [TextScaled Support Added]
Checked one of their examples;

<font color= "rgb(240, 40, 10)">red text</font>

You forgot to use

"rgb("..c..")"

Oh and just to be sure change c to a string with:

"rgb("..tostring(c)..")"

so the “format” function would be:

local function format(s, c)
	return "<font color=\"".. "rgb("..tostring(c)..")".. "\">".. s.. "</font>"
end

Wait a second, you gotta be quotes around a few parts. (Nvm you already did this.)

#13

I don’t think so. I used this person’s post to make this.

#14

Can you show me what you send as the color and text paremeters?
Oh and it might be because you forgot to add Quotes to the s;

return "<font color=\"".. c.. "\">\"".. s.. "\"</font>"

Btw, can you send me what’s the Text is after you used this function once.

#15

nothing, happens.
however if I use it multiple times it will work on all other ones…

image
image1569Ă—383 28.1 KB

#16

Your issue is your gsub pattern.

Replace (%W)(keyword)(%W) with (%W?)(keyword)(%W?)

1 Like
#17

it works. one more question, how can I make it format it after changing the text, because when I tried to, then it would just get into infinite loop.

#18

You should have a seperate TextLabel for the formatted code, instead of editing the TextBox’s text. They can overlay eachother to look as if they’re a single one, they just have seperate text.

#19

Yeah okay so I can see a lot wrong with it; if you don’t put any text in it:

<font color= "#859900"></font>

it won’t do anything and literally use that as the text:
image
when I used it with text: i literally put this inside the text property:

<font color= "#859900">text </font>

then it became:
image

#20

I will try to do that. Give me a minute.