<jupyter_start><jupyter_text>"regex"> "regex snippets"- toc: false- badges: true- comments: false- categories: [code snippets, regex]<jupyter_code>(?!) - negative lookahead
(?=) - positive lookahead
(?<=) - positive lookbehind
(?<!) - negative lookbehind

(?>) - atomic group<jupyter_output><empty_output>
{'fraction_non_alphanumeric': 0.1737704918032787, 'fraction_numerical': 0.0, 'mean_word_length': 6.285714285714286, 'pattern_counts': {'":': 0, '<': 7, '<?xml version=': 0, '>': 7, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'chain_length': '1', 'dir': 'jupyter-structured-clean-dedup', 'id': '610379', 'license': 'Apache-2.0', 'n_tokens_mistral': 113, 'n_tokens_neox': 101, 'n_words': 23, 'path': '_notebooks/2021-01-22-regex.ipynb', 'repo_name': 'fabge/snippets', 'size': '305'}