1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
# Copyright (C) 2001 Steve Howell
# You must read the file called INFO.txt before distributing this code.
# ---
# Worlds for Karel are defined with simple text files that we parse out
# in this module. See the worlds folder for examples.
from world import NORTH,SOUTH,EAST,WEST
from utils import trace_error
import re,gettext
# Use this to be able to extract strings for translation by pygettext.py
try:
#print "current _", _
old_ = _
except Exception,info:
print >> sys.stderr, "in gvrparser locale switch:\n",info
_ = gettext.gettext
KEYWORDS = (
_('ROBOT'),
_('WALL'),
_('BEEPERS'),
_('SIZE'))
DIRECTIONS = (NORTH,SOUTH,EAST,WEST)
####################### Start I18N part #####################################
# Now we install a gettext file in the builtin namespace
# If this fails the bogus '_()' function is used and we end up with a english - english
# look-up table :-(
# A possible solution would be to test for locales but i think it won't matter much in speed.
_ = old_
#print _
# get a list with the translated strings
trans_commands, org_commands = [],[]
words = KEYWORDS
for i in words:
trans_commands.append(_(i))
org_commands.append(i) # this is the english one
# With this we build a look-up dictionary that is used in the Program class.
# The look-up dict: {'beweeg':'move','rechtsaf':turnright',....}
# the keys are the gettext strings and the vals are the original names.
lookup_dict = {}
for k,v in map(None,trans_commands,org_commands):
lookup_dict[k] = v
#print lookup_dict
# This doesn't work in 'execute'. Probably we need the original direction.
# but that doesn't work in building the world :-(
lookup_dir_dict = {_('N'):'N',_('S'):'S',_('E'):'E',_('W'):'W'}# work in progress (stas)
#print lookup_dir_dict
class WorldMapException(Exception):
def __init__(self, line, str):
self.line = line
self.str = str
def __str__(self): return self.str
def checkDirection(line, dir):
if dir not in lookup_dir_dict.values():
raise WorldMapException(line,
_("In line %d:\n%s is not a valid direction -- use N, S, E, or W")
% (line, dir))
def removeComment(line):
foundComment = False
for i in range(len(line)):
if line[i] == "#":
foundComment = True
break
if foundComment:
return line[:i]
else:
return line
def readWorld(lines, world):
definedRobot = 0
useGuido = False
linenumber = 0
worldSize = None
#print "worldMap lines",lines
for line in lines:
linenumber += 1
try:
if re.search("\S", line) and not re.match("\s*#", line):
line = removeComment(line)
tokens = line.split()
tokens = [x.upper() for x in tokens]
keyword = tokens[0]
if lookup_dict.has_key(keyword):
keyword = lookup_dict[keyword]
dir = tokens[3]
if lookup_dir_dict.has_key(dir):
dir = lookup_dir_dict[dir]
tokens[3] = dir
if keyword ==_('WALL') or keyword == 'WALL':
tokens[0] = keyword
#print "wall",tokens
checkDirection(linenumber, dir)
#print "tokens",tokens
world.setWall(*tokens[1:])
elif keyword == _('ROBOT') or keyword == 'ROBOT':
if definedRobot:
raise WorldMapException(linenumber, _('You may only have one robot definition.'))
definedRobot = 1
tokens = [x.upper() for x in tokens]
if len(tokens) == 5:
x, y, dir, numBeepers = tokens[1:]
else:
x, y, dir = tokens[1:]
numBeepers = 0
robotX, robotY = int(x), int(y)
world.positionRobot(robotX, robotY, dir)
if numBeepers == "unlimited":
world.unlimitedBeepers = True
numBeepers = 0
world.setRobotBeepers(int(numBeepers))
elif keyword == _('BEEPERS') or keyword == 'BEEPERS':
x, y, numBeepers = tokens[1:]
world.setBeepers(int(x), int(y), int(numBeepers))
elif keyword == 'BDFL':
useGuido = True
elif keyword == _('SIZE') or keyword == 'SIZE':
if worldSize:
raise WorldMapException(linenumber,
_('You may only have one size statement'))
try:
avenues, streets = [int(coord) for coord in tokens[1:]]
except ValueError:
raise WorldMapException(linenumber,
_('Size statement should have 2 integers'))
if avenues < 7 or streets < 7:
raise WorldMapException(linenumber,
_('Size coordinates must be at least 7'))
worldSize = (avenues, streets)
else:
raise WorldMapException(linenumber,_("Cannot understand: %s") % line)
except Exception,info:
info = _("Error in line %s:\n%s\nCheck your world file for syntax errors") % (linenumber,line)
raise WorldMapException(linenumber, info)
if not definedRobot:
raise WorldMapException(linenumber, _("The world map seems to be missing information."))
world.useGuido = useGuido
return worldSize
|
