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# coding: utf-8
"""
Starting a new python process to preprocess each source file creates too much
overhead. Instead, a list of files to preprocess is fed into a script run from
a single process.
"""
import os
import sys
import preprocessor
def preprocess_queue(filenames=sys.argv[1:]):
stdin = sys.stdin
stdout = sys.stdout
processor = preprocessor.setup_processor()
for source in filenames:
dest = os.path.splitext(source)[0] + '.tx'
sys.stdin = open(source, 'r')
sys.stdout = open(dest, 'w')
processor.preprocess()
sys.stdin = stdin
sys.stdout = stdout
def main():
filenames = list(set(sys.argv[1:]))
if filenames:
num_files = len(filenames)
s = '' if num_files == 1 else 's'
sys.stdout.write('Preprocessing {0} file{1}...\n'.format(num_files, s))
preprocess_queue(filenames)
if __name__ == '__main__':
main()
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