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50 lines
1.4 KiB
50 lines
1.4 KiB
#!/usr/bin/env python3
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import argparse
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def main(args):
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"""Token Transducer"""
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# <eps> entry
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print('0 1 <eps> <eps>')
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# skip begining and ending <blank>
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print('1 1 <blank> <eps>')
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print('2 2 <blank> <eps>')
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# <eps> exit
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print('2 0 <eps> <eps>')
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# linking `token` between node 1 and node 2
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with open(args.token_file, 'r') as fin:
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node = 3
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for entry in fin:
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fields = entry.strip().split(' ')
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phone = fields[0]
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if phone == '<eps>' or phone == '<blank>':
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continue
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elif '#' in phone:
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# disambiguous phone
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# `token` maybe ending with disambiguous symbol
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print('{} {} {} {}'.format(0, 0, '<eps>', phone))
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else:
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# eating `token`
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print('{} {} {} {}'.format(1, node, phone, phone))
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# remove repeating `token`
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print('{} {} {} {}'.format(node, node, phone, '<eps>'))
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# leaving `token`
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print('{} {} {} {}'.format(node, 2, '<eps>', '<eps>'))
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node += 1
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# Fianl node
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print('0')
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(
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description='FST: CTC Token FST transducer')
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parser.add_argument(
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'--token_file',
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required=True,
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help='e2e model token file. line: token(char/phone/spm/disambigous)')
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args = parser.parse_args()
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main(args)
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