#!/usr/bin/python2 -tt
# vim:set fileencoding=utf-8

from subprocess import *
import sys 
import os, select

special = {
#Ꮉ ꙮ
    # Tree - ᎙ 
    '\xf1': u'\u1399',   

    # Fountain ♈
    '\xf4': u'\u2648',
    # water ♒ 2652 ≋ 224b
    '\xf7': u'\u224b',


    #boulder -● 
    #boulder -⭓ 
    #'\xe1': u'\u25cf',
    '\xe1': u'\u2B53',

    # hole - ◯
    '\x80': u'\u25ef',
    #beartrap - Φ
    '\x81': u'\u03A6',
    #bug - ᛤ
    '\x82': u'\u16E4',
    # Unicorn/Horse - ♞
    '\x83': u'\u265e',
    # level teleporter/magic portal - ⎗ 
    '\x84': u'\u2397',
    # arrow trap - ➴
    '\x85': u'\u27b4',
    # open door - ∏
    '\x86': u'\u220f',
    # closed door - ⧮
    '\x87': u'\u29ee',
    # ring - ⊚ 229a ⚬ 26ac
    '\x88': u'\u26ac',
    # ghost - ☄ 2604
    '\x89': u'\u2604',
    # down entrance ⬎
    '\x3e': u'\u2b0e',
    # up entrance ⬑
    '\x3c': u'\u2b11',
    # Spiderweb: sun symbol - ⎈
    '\xe2': u'\u2388',

    #⸎ - 2e0e - good elemental?
    #〠 - monkey? 3020 Keystone kop maybe - if 4b is keystone kop, needs remap first
    #'\x4b': u'\u3020',
    # ٥ - egg? 0665
    # Special cases for rogue levels
    '\x01': u'\u263b', # human, elf - smiley ☺
    # use smiley for all humans ☺  - ☻ is the alternate \u263b
    '\x40': u'\u263b', # human, elf - smiley
    '\x04': u'\u2666', # trap, web - dimaond

    # Grave - ♰
    '\xef': u'\u2670',
    # 4de1 screws up rendering. trying ≣ instead
    '\xfc': u'\u2263'

    # These are supposed to be used on rogue levels, but don't appear
    # to be used when I try them...
    #'\x05': u'\u2663', # food - clubs
    #'\x0c': u'\u2640', # amulet - female
    #'\x0e': u'\u266b', # scroll - note
    #'\x0f': u'\u263c', # gold, gems - sun
    #'\x18': u'\u2191', # weapon - up arrow
}

if len(sys.argv) < 2:
    print "usage: ibmfilter [command]"
    print "Runs command in a subshell and translates its output from ibm473 codepage to UTF-8."
    sys.exit(0)

handle = Popen(sys.argv[1:], stdout=PIPE, bufsize=1)
buf = handle.stdout.read(1)
while buf != '':
    if buf in special:
        out = special[buf]
    else:
        out = buf.decode('ibm437')
    writeable = select.select([], [sys.stdout], [], 5)[1]
    if not writeable:
        os.kill(handle.pid)
        os.system('reset')
        raise Exception("Timed out while waiting for stdout to be writeable...")
    sys.stdout.write(out.encode("UTF-8"))
    
    buf = handle.stdout.read(1)

handle.wait()