Calvin Ng
46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
import argparse
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import re
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"""Endless ATC custom airport file section renumbering utility."""
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def process(args, file=None):
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"""Rewrites an Endless ATC airport file with renumbered sections.
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Sections are renumbered from 1. Sections do not need to be numbered
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in the input. Routes, however, need to be numbered in the input.
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Args:
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`args`: An `argparse.Namespace`. The command line args from the invoking module.
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`file`: The file to process. Defaults to `input_file` in `args`."""
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header_re = re.compile(r"^(?:\[(?P<header>(?:approach)|(?:transition)|(?:departure)|(?:area))\d*\])|^(?:route\d+ *= *)")
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def number_approach(match, indexes={'approach': 0, 'transition': 0, 'departure': 0, 'area': 0, 'route': 0}):
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header = match.group("header")
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if header:
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indexes['route'] = 0
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else:
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header = 'route'
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indexes[header] += 1
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return header == 'route' and f"{header}{indexes[header]} = " or f"[{header}{indexes[header]}]"
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if file is None:
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file = args.input_file
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result = []
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with open(file, 'r', newline='') as input_file:
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for line in input_file:
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result.append(header_re.sub(number_approach, line))
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with open(file, 'w', newline='') as output_file:
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output_file.writelines(result)
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description='Re-number [approach] sections for Endless ATC airport files.')
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parser.add_argument('input_file')
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process(parser.parse_args())
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