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# encoding=utf-8
# Copyright © 2018 Intel Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice (including the next
# paragraph) shall be included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
# Converts a file to a C/C++ #include containing a string
from __future__ import unicode_literals
import argparse
import io
import string
import sys
def get_args():
parser = argparse.ArgumentParser()
parser.add_argument('input', help="Name of input file")
parser.add_argument('output', help="Name of output file")
parser.add_argument("-n", "--name",
help="Name of C variable")
args = parser.parse_args()
return args
def filename_to_C_identifier(n):
if n[0] != '_' and not n[0].isalpha():
n = "_" + n[1:]
return "".join([c if c.isalnum() or c == "_" else "_" for c in n])
def emit_byte(f, b):
if ord(b) == ord('\n'):
f.write(b"\\n\"\n \"")
return
elif ord(b) == ord('\r'):
f.write(b"\\r\"\n \"")
return
elif ord(b) == ord('\t'):
f.write(b"\\t")
return
elif ord(b) == ord('"'):
f.write(b"\\\"")
return
elif ord(b) == ord('\\'):
f.write(b"\\\\")
return
if ord(b) >= ord(' ') and ord(b) <= ord('~'):
f.write(b)
else:
hi = ord(b) >> 4
lo = ord(b) & 0x0f
f.write("\\x{:x}{:x}".format(hi, lo).encode('utf-8'))
def process_file(args):
with io.open(args.input, "rb") as infile:
try:
with io.open(args.output, "wb") as outfile:
# If a name was not specified on the command line, pick one based on the
# name of the input file. If no input filename was specified, use
# from_stdin.
if args.name is not None:
name = args.name
else:
name = filename_to_C_identifier(args.input)
outfile.write("static const char {}[] =\n \"".format(name).encode('utf-8'))
while True:
byte = infile.read(1)
if byte == b"":
break
emit_byte(outfile, byte)
outfile.write(b"\"\n ;\n")
except Exception:
# In the event that anything goes wrong, delete the output file,
# then re-raise the exception. Deleteing the output file should
# ensure that the build system doesn't try to use the stale,
# half-generated file.
os.unlink(args.output)
raise
def main():
args = get_args()
process_file(args)
if __name__ == "__main__":
main()
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