mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-21 22:07:49 +00:00
71 lines
1.6 KiB
Python
71 lines
1.6 KiB
Python
|
#! /usr/bin/env python3
|
||
|
|
|
||
|
|
"""M4-quote text, for use as a literal in configure.ac.
|
||
|
|
|
||
|
|
Produces M4 "code" which evaluates to the input text.
|
||
|
|
|
||
|
|
It's not easy to read plain text from an input file in M4, without having it
|
||
|
|
expanded as M4. Sometimes all we want is literal text!
|
||
|
|
"""
|
||
|
|
from __future__ import (
|
||
|
|
absolute_import,
|
||
|
|
print_function,
|
||
|
|
unicode_literals,
|
||
|
|
)
|
||
|
|
|
||
|
|
from argparse import ArgumentParser
|
||
|
|
from sys import (
|
||
|
|
stdin,
|
||
|
|
stdout,
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def parse_args():
|
||
|
|
parser = ArgumentParser(description=__doc__)
|
||
|
|
parser.add_argument(
|
||
|
|
'--open', '-a', default='[[', help="Current open-quote symbol.")
|
||
|
|
parser.add_argument(
|
||
|
|
'--close', '-b', default=']]', help="Current close-quote symbol.")
|
||
|
|
parser.add_argument(
|
||
|
|
'--input', '-i', default='-', help="Input file, or '-' for stdin.")
|
||
|
|
parser.add_argument(
|
||
|
|
'--output', '-o', default='-', help="Output file, or '-' for stdout.")
|
||
|
|
return parser.parse_args()
|
||
|
|
|
||
|
|
|
||
|
|
def open_input(in_file):
|
||
|
|
if in_file == '-':
|
||
|
|
return stdin
|
||
|
|
else:
|
||
|
|
return open(in_file)
|
||
|
|
|
||
|
|
|
||
|
|
def open_output(out_file):
|
||
|
|
if out_file == '-':
|
||
|
|
return stdout
|
||
|
|
else:
|
||
|
|
return open(out_file, 'w')
|
||
|
|
|
||
|
|
|
||
|
|
def escape(line):
|
||
|
|
return (
|
||
|
|
line
|
||
|
|
.replace('[', '@<:@')
|
||
|
|
.replace(']', '@:>@')
|
||
|
|
.replace('#', '@%:@')
|
||
|
|
.replace('$', '@S|@')
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def main(args):
|
||
|
|
with open_input(args.input) as istr, open_output(args.output) as ostr:
|
||
|
|
ostr.write(args.open)
|
||
|
|
for line in istr:
|
||
|
|
ostr.write(escape(line))
|
||
|
|
ostr.write('\n')
|
||
|
|
ostr.write(args.close)
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
main(parse_args())
|