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oot/tools/msgenc.py
Dragorn421 a6f646dc65
Introduce extracted/VERSION, with text extracted there (#1730)
* Introduce assets/_extracted/VERSION, with text extracted there

* move to `extracted/text/`

* Update gitignore s

* rework args for msgenc.py

* put mkdir with others, until theyre all moved at once

* move 0xFFFC back to being extracted, making it use specific macro `DEFINE_MESSAGE_NES` to handle its special behavior

* prettier gitignore

* Move messages 0xFFFC, 0xFFFD to committed message_data.h
2024-03-01 22:09:57 -05:00

90 lines
2.3 KiB
Python

#!/usr/bin/env python3
#
# message_data_static text encoder
#
import argparse, ast, re
import sys
def read_charmap(path):
with open(path) as infile:
charmap = infile.read()
charmap = ast.literal_eval(charmap)
charmap = { repr(k)[1:-1] : chr(v) for k,v in charmap.items() }
return charmap
# From https://stackoverflow.com/questions/241327/remove-c-and-c-comments-using-python
def remove_comments(text):
def replacer(match):
s = match.group(0)
if s.startswith('/'):
return " " # note: a space and not an empty string
else:
return s
pattern = re.compile(
r'//.*?$|/\*.*?\*/|\'(?:\\.|[^\\\'])*\'|"(?:\\.|[^\\"])*"',
re.DOTALL | re.MULTILINE
)
return re.sub(pattern, replacer, text)
def convert_text(text, charmap):
def cvt_str(m):
string = m.group(0)
for orig,char in charmap.items():
string = string.replace(orig, char)
return string
# Naive string matcher, assumes single line strings and no comments, handles escaped quotations
string_regex = re.compile(r'"((?:[^\\"\n]|\\.)*)"')
# Collapse escaped newlines
text = text.replace("\\\n", "")
# Encode according to charmap
text = re.sub(string_regex, cvt_str, text)
return text
def main():
parser = argparse.ArgumentParser(description="Encode message_data_static text headers")
parser.add_argument(
"input",
help="path to file to be encoded, or - for stdin",
)
parser.add_argument(
"--output",
"-o",
help="path to write encoded file, or - for stdout",
required=True,
)
parser.add_argument(
"--charmap",
help="path to charmap file specifying custom encoding elements",
required=True,
)
args = parser.parse_args()
charmap = read_charmap(args.charmap)
text = ""
if args.input == "-":
text = sys.stdin.read()
else:
with open(args.input, "r") as infile:
text = infile.read()
text = remove_comments(text)
text = convert_text(text, charmap)
if args.output == "-":
sys.stdout.buffer.write(text.encode("raw_unicode_escape"))
else:
with open(args.output, "w", encoding="raw_unicode_escape") as outfile:
outfile.write(text)
if __name__ == "__main__":
main()