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