Converting a Python plugin into Lua

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE muclient>
<!-- Saved on Sunday, March 13, 2005, 4:11 PM -->
<!-- MuClient version 3.65 -->

<!-- Plugin "PromptCatcher_Achaea" generated by Plugin Wizard -->

<muclient>
<plugin
   name="PromptCatcher_Achaea"
   author="Keldar"
   id="8f85913ad96bd5bc255e434a"
   language="Python"
   purpose="Terminates prompts with newlines"
   date_written="2005-03-13 16:10:15"
   requires="3.65"
   version="1.0"
   >

</plugin>

<script>
<![CDATA[

import re


lastHealth = None
lastMana = None
pat1 = re.compile(u"(\-\xff\xf9)($|\x0d\x0a)?")
pat2 = re.compile("^\x0d\x0a")
terminated = False
prompt = re.compile('(\x1b[(?:32|1;33|1;31)m)([0-9]+)(h,\x1b[(?:0;)?37m)(\x1b[(?:32|1;33|1;31)m)( [0-9]+)(m\x1b[(?:0;)?37m [c]?[e]?[x]?[k]?[d]?[b]?\-)')


def repl(mo):
    global terminated
    if mo.groups()[1] == "":
        terminated = True
    return "-\x0d\x0a"


def repl2(mo):
    global lastHealth
    global lastMana
    currHealth, currMana = int(mo.groups()[1]), int(mo.groups()[4])
    if lastHealth is None:
        
lastHealth = currHealth
    if lastMana is None:
        lastMana = currMana
    healthDiff, manaDiff = currHealth - lastHealth, currMana - lastMana
    lastHealth, lastMana = currHealth, currMana
    if healthDiff > 0:
        healthDiff = "\x1b[37m[\x1B[1;32m+%s\x1b[0;37m]%s" % (str(healthDiff), mo.groups()[0])
    elif healthDiff < 0:
        healthDiff = "\x1b[37m[\x1b[1;31m%s\x1b[0;37m]%s" % (str(healthDiff), mo.groups()[0])
    else:
        healthDiff = ""
    if manaDiff > 0:
        manaDiff = "\x1b[37m[\x1B[1;32m+%s\x1b[0;37m]%s" % (str(manaDiff), mo.groups()[3])
    elif manaDiff < 0:
        manaDiff = "\x1b[37m[\x1B[1;31m%s\x1b[0;37m]%s" % (str(manaDiff), mo.groups()[3])
    else:
        manaDiff = ""
    return "%s%s%s%s%s%s%s%s" % (mo.groups()[0], mo.groups()[1], healthDiff, mo.groups()[2], mo.groups()[3], mo.groups()[4], manaDiff, mo.groups()[5])
        
    
def OnPluginPacketReceived(packet):
    packet = prompt.sub(repl2, packet)
    global terminated
    global pat1
    global repl
    global pat2
    if terminated:
        packet = pat2.sub("",packet)
        terminated = False
    packet = pat1.sub(repl, packet)
    return packet


]]>
</script>
</muclient>

lastHealth = 0
lastMana = 0
lastWillpower = 0
lastEndurance = 0
terminated = false

function repl(...)
if arg[2] == "" then
terminated = true
end
return "-\13\10"
end --repl

function repl2(...)
    table.foreach(arg, Note)
    currHealth = arg[2]
    currMana = arg[5]
    if lastHealth == 0 then
        
lastHealth = currHealth
    end
    if lastMana == 0 then
        lastMana = currMana
    end
    healthDiff = currHealth - lastHealth
    manaDiff = currMana - lastMana
    lastHealth = currHealth
    lastMana = currMana
    if healthDiff > 0 then
        healthDiff = "\x1b[37m[\x1B[1;32m+" .. healthDiff .. "\x1b[0;37m]" .. arg[1]
    elseif healthDiff < 0 then
        healthDiff = "\x1b[37m[\x1b[1;31m" .. healthDiff .. "\x1b[0;37m]" .. arg[1]
    else
        healthDiff = ""
    end
    if manaDiff > 0 then
        manaDiff = "\x1b[37m[\x1B[1;32m+" .. manaDiff .. "\x1b[0;37m]" .. arg[4]
    elseif manaDiff < 0 then
        manaDiff = "\x1b[37m[\x1B[1;31m" .. manaDiff .. "\x1b[0;37m]" .. arg[4]
    else
        manaDiff = ""
    end
    return arg[1] .. arg[2] .. healthDiff .. arg[3] .. arg[4] .. arg[5] .. manaDiff .. arg[6]
end --repl2

function repl3(...)
return ""
end --repl3

function OnPluginPacketReceived(packet)
packet = string.gsub(packet, "(\27%[(?:32|1;33|1;31)m)([0-9]+)(h,\27%[(?:0;)?37m)(\27%[(?:32|1;33|1;31)m)( [0-9]+)(m\27%[(?:0;)?37m [c]?[e]?[x]?[k]?[d]?[b]?\-)",
                    repl2)
if terminated then
	packet = string.gsub(packet, "^\13\10", "")
	terminated = false
end
-- \x0a == 10 \xod == 13 \xff == 255 \xf9 == 249 \x1b == 27
packet = string.gsub(packet, "(\-\255\249)($|\13\10)?", repl)
return packet
end --PacketReceived
]]>