blob: 1abb9d6a118084cebd4e23dba91d1b0785d83b35 (
plain)
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
|
import sys
def binarize(file_in, file_out):
""" Create a binary file from an ASCII file. Everything
but '0' and '1' (alternatively '_' and 'X') is ignored
from the input file. """
print ("binarizing " + file_in + " to "+ file_out + ".")
try:
f=open(file_in,'r')
try:
o=open(file_out,'wb')
try:
while True:
b=readnext(f)
if b==-1:
break
o.write(bytes([b]))
except IOError:
print("IOError happened during processing.");
print("I am closing the input and ouput files and aborting.");
print("Warning: The output file is very likely incomplete.");
o.close()
except IOError:
print("IOError opening output file: " + file_out);
f.close()
except IOError:
print("IOError opening input file: " + file_in);
def readnext(f):
""" Read next 'byte' from the given ASCII file (BufferedWriter)
everything but '_','X','0','1' is ignored.
Returns the byte as integer or -1 on EOF """
l=0
b=""
while l<8:
c=f.read(1)
if not c:
return -1
if c=="0" or c=='_':
l+=1
b+="0"
if c=="1" or c=='X':
l+=1
b+="1"
return int(b,2)
def usage():
""" Prints usage information to sdtout """
print ("python3.x binarize.py [file_in] [file_out]")
""" direct use """
if __name__ == "__main__":
if(len(sys.argv)==3):
binarize(sys.argv[1],sys.argv[2])
else:
usage()
|
