How to write this regular expression in Lua?

Question

I\'m new to the Lua regex equivalence features, I need to write the following regular expression, which should match numbers with decimals

\\b[0-9]*.\\b[0-9         


        

Answer 1

"%d*%.?%d+" will match all such numbers in decimal format (note that that's going to miss any signed numbers such as -1.1 or +3.14). You'll need to come up with another solution to avoid instances that end with ], such as removing them from the string before looking for the numbers:

local pattern = "%d*%.?%d+"
local clean = string.gsub(orig ,pattern .. "%]", "")
return string.gmatch(clean, pattern)