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"""
Entry point for rainbow parenthesis.
Reads a string from stdin, and outputs it to stdout with all
parenthesis prettily colored.
"""
from . import colorize, Colored, __version__
from . import term
import argparse
def build_argparse() -> argparse.ArgumentParser:
"""
Construct the argument parser for ``rainbow`` .
This is mostly a separate procedure to allow direct generation of
man pages.
"""
parser = argparse.ArgumentParser(prog='rainbow')
parser.add_argument('input', type=argparse.FileType('r'),
nargs='?', default='-')
parser.add_argument('--version',
action='version',
version=f'%(prog)s {__version__}')
return parser
def main():
"""Interactive entry point for the program."""
parser = build_argparse()
args = parser.parse_args()
for item in colorize(args.input):
match item:
case Colored():
print(term.colorize(item), end='')
case s:
print(s, end='')
if __name__ == '__main__':
main()
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