Useful Addons
**Tip:** Load functions in a script with the
startup event to have them ready for all your scripts.With LuaJava
Real Regex
For when lua’s patterns just arn’t enough.
The Code
local Pattern = luajava.bindClass"java.util.regex.Pattern"
function string.regex(str, pat)
log("&6"..str.." &d"..pat)
local p = Pattern:compile(pat)
local m = p:matcher(str)
return function()
if m:find() then
if m:groupCount() > 0 then
local out = {}
for i = 1, m:groupCount() do
out[i] = m:group(i)
end
return table.unpack(out)
else
return m:group(0)
end
end
end
end
Setup
To setup this function you only need to run a script containing the above code once.
Examples
Ex 1
When no capture groups are used a will contain a string that matches the pattern. This example caputures one word at a time. b and c will both be nil
for a,b,c in ("hello world\nand all who inhabit\nit"):regex"[^\\W\\n]+" do
log{a,b,c}
end
Ex 2
When capture groups are used, each letter will contain the string from a capture group This example caputures two words at a time. c will be nil and b will be nil on the last itteration because there are an odd number of words.
for a,b,c in ("hello world\nand all who inhabit\nit"):regex"([^\\W\\n]+)[\\W\\n]*([^\\W\\n]+)?" do
log{a,b,c}
end
regexr.com is an easy way to test expressions. Don't forget to escape any
\ after pasting into your code!UTF8
The code
local String = luajava.bindClass"java.lang.String"
local Char = luajava.bindClass"java.lang.Character"
utf8 = utf8 or {}
function utf8.char(...)
local args = {...}
local out = {}
for i,c in ipairs(args) do
out[i] = luajava.new(String, Char:toChars(c))
end
return table.unpack(out)
end
Setup
To setup this function you only need to run a script containing the above code once.
Examples
Ex 1
log("Hello world: &a"..utf8.char(10004))
Result
