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251d90301c
* Improve encoding stage of text headers * Fix r string * Remove another unnecessary backslash
55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
#!/usr/bin/env python3
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#
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# message_data_static text encoder
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#
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import argparse, ast, re
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def read_charmap(path):
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with open(path) as infile:
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charmap = infile.read()
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charmap = ast.literal_eval(charmap)
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charmap = { repr(k)[1:-1] : chr(v) for k,v in charmap.items() }
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return charmap
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def convert_text(text, charmap):
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def cvt_str(m):
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string = m.group(0)
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for orig,char in charmap.items():
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string = string.replace(orig, char)
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return string
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# Naive string matcher, assumes single line strings and no comments, handles escaped quotations
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string_regex = re.compile(r'"((?:[^\\"\n]|\\.)*)"')
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# Collapse escaped newlines
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text = text.replace("\\\n", "")
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# Encode according to charmap
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text = re.sub(string_regex, cvt_str, text)
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return text
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def main():
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parser = argparse.ArgumentParser(description="Encode message_data_static text headers")
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parser.add_argument("charmap", help="path to charmap file specifying custom encoding elements")
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parser.add_argument("input", help="path to file to be encoded")
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parser.add_argument("output", help="encoded file")
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args = parser.parse_args()
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charmap = read_charmap(args.charmap)
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text = ""
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with open(args.input, "r") as infile:
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text = infile.read()
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text = convert_text(text, charmap)
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with open(args.output, "w", encoding="raw_unicode_escape") as outfile:
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outfile.write(text)
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if __name__ == "__main__":
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main()
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