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#!/usr/bin/env python
#
# Copyright 2018 WebAssembly Community Group participants
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from __future__ import print_function
import argparse
try:
from cStringIO import StringIO
except ImportError:
from io import StringIO
import os
import sys
def EscapeCString(s):
out = ''
for b in bytearray(s.encode('utf-8')):
if b in (34, 92):
# " or \
out += '\\' + chr(b)
elif b == 10:
# newline
out += '\\n'
elif 32 <= b <= 127:
# printable char
out += chr(b)
else:
# non-printable; write as \xab
out += '\\x%02x' % b
return out
def main(args):
arg_parser = argparse.ArgumentParser()
arg_parser.add_argument('-o', '--output', metavar='PATH',
help='output file.')
arg_parser.add_argument('file', help='input file.')
options = arg_parser.parse_args(args)
section_name = None
output = StringIO()
output.write('/* Generated from \'%s\' by wasm2c_tmpl.py, do not edit! */\n' %
os.path.basename(options.file))
with open(options.file) as f:
for line in f.readlines():
if line.startswith('%%'):
if section_name is not None:
output.write(';\n\n');
section_name = line[2:-1]
output.write('const char SECTION_NAME(%s)[] =\n' % section_name)
else:
output.write('"%s"\n' % EscapeCString(line))
output.write(';\n');
if options.output:
with open(options.output, 'w') as outf:
outf.write(output.getvalue())
else:
sys.stdout.write(output.getvalue())
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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