circuitpython/tools/file2h.py

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2020-06-03 18:40:05 -04:00
# SPDX-FileCopyrightText: 2014 MicroPython & CircuitPython contributors (https://github.com/adafruit/circuitpython/graphs/contributors)
#
# SPDX-License-Identifier: MIT
# Reads in a text file, and performs the necessary escapes so that it
# can be #included as a static string like:
# static const char string_from_textfile[] =
# #include "build/textfile.h"
# ;
# This script simply prints the escaped string straight to stdout
from __future__ import print_function
import sys
# Can either be set explicitly, or left blank to auto-detect
# Except auto-detect doesn't work because the file has been passed
# through Python text processing, which makes all EOL a \n
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line_end = "\\r\\n"
if __name__ == "__main__":
filename = sys.argv[1]
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for line in open(filename, "r").readlines():
if not line_end:
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for ending in ("\r\n", "\r", "\n"):
if line.endswith(ending):
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line_end = ending.replace("\r", "\\r").replace("\n", "\\n")
break
if not line_end:
raise Exception("Couldn't auto-detect line-ending of %s" % filename)
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line = line.rstrip("\r\n")
line = line.replace("\\", "\\\\")
line = line.replace('"', '\\"')
print('"%s%s"' % (line, line_end))