How to separate emojies in string without spaces in LUA 5.1

Question

I want to use split function of LUA 5.1 to split string of emoji characters without spaces and add space between ones, but I can't do it rightly. So I do it by this way, but it's wrong:

#!/usr/bin/env lua

local text = "‍‍‍‍‍⌚↔"
for emoji in string.gmatch(text, "[%z\1-\127\194-\244][\128-\191]*") do
    io.write(emoji .. " ")          
end

See in browser Firefox 65!

MY WRONG RESULT: ⌚ ↔

WAITED RESULT: ‍‍‍ ‍‍ ⌚ ↔

Try `text = text:gsub("\226\128\141", ""):gsub("(.)([\194-\244])", "%1,%2")` The first gsub is needed to remove U+200D characters from your string — Egor Skriptunoff, Mar 20 '19 at 09:48
@EgorSkriptunoff I need to get compound emojies, don't split them into separate ones. — Dzmitry, Mar 20 '19 at 09:56
This sounds like an encoding mismatch between your terminal and/or editor. — glenn jackman, Mar 20 '19 at 14:21

Egor Skriptunoff · Accepted Answer · 2019-03-21T10:45:00.653

1

local text = "‍‍‍‍‍⌚↔"
for emoji in text
   :gsub("(.)([\194-\244])", "%1\0%2")
   :gsub("%z(\240\159\143[\187-\191])", "%1")
   :gsub("%z(\239\184[\128-\143])", "%1")
   :gsub("%z(\226\128\141)%z", "%1")
   :gmatch"%Z+" 
do
   print(emoji)
end

edited Mar 21 '19 at 10:45

answered Mar 20 '19 at 14:22

Egor Skriptunoff

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It's ok! but how to glue emojies with different colors (example: + = ) U+1F3FB 240 159 143 187; U+1F3FC 240 159 143 188; U+1F3FD 240 159 143 189; U+1F3FE 240 159 143 190; U+1F3FF 240 159 143 191; – Dzmitry Mar 20 '19 at 15:40
I don't see any colored emojies on this SO page :-) To glue emojies, just insert `"\226\128\141"` in between them. – Egor Skriptunoff Mar 20 '19 at 16:19
Open page in the Browser Firefox 65.0.1 (I'm using Ubuntu 18.04) – Dzmitry Mar 20 '19 at 18:01
@Dzmitry - Indeed, they are colored in new Firefox! FF60 is enough. – Egor Skriptunoff Mar 21 '19 at 06:01
@EgorSkriptunoff thanks for the answers. I'll try to modify it to solve my problem. – Dzmitry Mar 21 '19 at 06:17
@EgorSkriptunoff well done! but it doesn't glue: ‍❤️‍‍ -> ‍❤ ‍. What part of the expression do gluing? – Dzmitry Mar 21 '19 at 09:09
@Dzmitry - Updated. – Egor Skriptunoff Mar 21 '19 at 10:45

How to separate emojies in string without spaces in LUA 5.1

1 Answers1