Lua string.find not working with decimal

Question

pos = string.find("1.23x", ".")
print ( pos )

I always get 1, when the output should be 2. Even if I try this

pos = string.find("123x", ".")
print ( pos )

It still returns 1.

What am I doing wrong?

possible duplicate of [Corona string.find() : Finding "."](http://stackoverflow.com/questions/17522384/corona-string-find-finding) — Yu Hao, Dec 06 '13 at 04:20
@YuHao, to be exact - this a [solution](http://stackoverflow.com/a/17525129/1150918). Use `%.` instead, because `.` is reserved and needs to be escaped. — Kamiccolo, Dec 06 '13 at 14:11

score 1 · Answer 1 · answered Dec 06 '13 at 04:17

1

Forgot that Lua can use patterns, this works:

pos = string.find('1.23x', '.',1 ,true)
print ( pos )

The dot was matched as a pattern, the fourth argument sets the mode to plain, so it recognises the dot as a regular character.

answered Dec 06 '13 at 04:17

Cameron Ball

1

Or you can escape `.` like this: `pos = string.find("1.23x", "%.")` – Yu Hao Dec 06 '13 at 04:23

1 Answers1