<commit_before>todo list for nyan
==================

- add backtraces to nyan::fail.
- implemenent nyan stringbufs.
- implement logging system.
- abstract the string macro code into a separate class.
- implement a flyweight class.<commit_msg>TODO file update.<commit_after>todo list for nyan
==================

- add backtraces to nyan::fail.
- implemenent nyan stringbufs.
  - copy-on-write wrapper
  - const string (cached length)
  - std::string
- implement logging system.
- abstract the string macro code into a separate class.
- implement a flyweight class.
- implement nyan::allocator
{'fraction_non_alphanumeric': 0.13322091062394603, 'fraction_numerical': 0.0, 'mean_word_length': 4.165217391304348, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, '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}}
{'dir': 'git-commits-cleaned', 'id': '1143878', 'n_tokens_mistral': 171, 'n_tokens_neox': 168, 'n_words': 64}