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
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
#!/usr/bin/env python3
import os
import sys
import shlex
from subprocess import Popen, PIPE
symbol = '@'
encoding = 'utf-8'
iterations = 1
input_file = '/dev/stdin'
output_file = '/dev/stdout'
unshebang = False
args = sys.argv
# If the file is executed, the first command line argument will be the first argument in the shebang,
# the second will be the rest of the arguments in the command line as is and the third and final will
# be the executed file.
if len(args) == 3:
if os.path.exists(args[2]) and os.path.isfile(args[2]) and ((os.stat(args[2]).st_mode & 0o111) != 0):
args[1 : 2] = shlex.split(args[1])
for i in range(1, len(args)):
arg = args[i]
i += 1
if arg in ('-s', '--symbol'): symbol = sys.argv[i]
elif arg in ('-e', '--encoding'): encoding = sys.argv[i]
elif arg in ('-n', '--iterations'): iterations = int(sys.argv[i])
elif arg in ('-u', '--unshebang'): unshebang = True; continue
elif arg in ('-i', '--input'): input_file = sys.argv[i]
elif arg in ('-o', '--output'): output_file = sys.argv[i]
elif arg in ('-f', '--file'):
input_file = sys.argv[i]
output_file = sys.argv[i]
else:
continue
i += 1
if input_file == '-': input_file = '/dev/stdin'
if output_file == '-': output_file = '/dev/stdout'
if iterations < 1:
if input_file != output_file:
data = None
with open(input_file, 'rb') as file:
data = file.read()
with open(write_file, 'wb') as file:
file.write(data)
file.flush()
sys.exit(0)
data = None
with open(input_file, 'rb') as file:
data = file.read().decode(encoding, 'error').split('\n')
if unshebang:
if data[0][:2] == '#!':
data[0] = ''
def pp(line):
rc = ''
symb = False
brackets = 0
esc = False
dollar = False
quote = []
for c in line:
if brackets > 0:
if esc:
esc = False
elif (c == ')') or (c == '}'):
brackets -= 1
if brackets == 0:
rc += c + '"\''
continue
elif (c == '(') or (c == '{'):
brackets += 1
elif c == '\\':
esc = True
rc += c
elif symb:
symb = False
if (c == '(') or (c == '{'):
brackets += 1
rc += '\'"$' + c
else:
rc += c
elif c == symbol:
symb = True
elif len(quote) > 0:
if esc:
esc = False
elif dollar:
dollar = False
if c == '(':
quote.append(')')
elif c == '{':
quote.append('}')
elif c == quote[-1]:
quote[:] = quote[:-1]
elif (quote[-1] in ')}') and (c in '\'"`'):
quote.append(c)
elif (c == '\\') and (quote[-1] != "'"):
esc = True
elif c == '$':
dollar = True
rc += c
elif (c == '"') or (c == "'") or (c == '`'):
quote.append(c)
rc += c
else:
rc += c
return rc
for _ in range(iterations):
entered = False
bashed = []
for lineno in range(len(data)):
line = data[lineno]
if line.startswith(symbol + '<'):
bashed.append(line[2:])
entered = True
elif line.startswith(symbol + '>'):
bashed.append(line[2:])
entered = False
elif entered:
bashed.append(line)
else:
line = '\'%s\'' % line.replace('\'', '\'\\\'\'')
bashed.append('echo $\'\\e%i\\e\'%s' % (lineno, pp(line)))
bashed = '\n'.join(bashed).encode(encoding)
bash = Popen(["bash"], stdin = PIPE, stdout = PIPE, stderr = sys.stderr)
bashed = bash.communicate(bashed)[0]
if bash.returncode != 0:
sys.exit(bash.returncode)
bashed = bashed.decode(encoding, 'error').split('\n')
data = []
lineno = -1
for line in bashed:
no = -1
if line.startswith('\033'):
no = int(line[1:].split('\033')[0])
line = '\033'.join(line[1:].split('\033')[1:])
if no > lineno:
while no != lineno + 1:
data.append('')
lineno += 1
data.append(line)
lineno += 1
with open(output_file, 'wb') as file:
file.write('\n'.join(data).encode(encoding))
file.flush()
|
